diff options
Diffstat (limited to 'drivers')
273 files changed, 14827 insertions, 5243 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 7594f65800cf..4bc1c4178f50 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1406,7 +1406,7 @@ acpi_os_invalidate_address( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_SYSTEM_MEMORY: - /* Only interference checks against SystemIO and SytemMemory + /* Only interference checks against SystemIO and SystemMemory are needed */ res.start = address; res.end = address + length - 1; @@ -1458,7 +1458,7 @@ acpi_os_validate_address ( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_SYSTEM_MEMORY: - /* Only interference checks against SystemIO and SytemMemory + /* Only interference checks against SystemIO and SystemMemory are needed */ res = kzalloc(sizeof(struct acpi_res_list), GFP_KERNEL); if (!res) diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index b0a71ecee682..e4804fb05e23 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -401,11 +401,13 @@ int acpi_pci_irq_enable(struct pci_dev *dev) * driver reported one, then use it. Exit in any case. */ if (gsi < 0) { + u32 dev_gsi; dev_warn(&dev->dev, "PCI INT %c: no GSI", pin_name(pin)); /* Interrupt Line values above 0xF are forbidden */ - if (dev->irq > 0 && (dev->irq <= 0xF)) { - printk(" - using IRQ %d\n", dev->irq); - acpi_register_gsi(&dev->dev, dev->irq, + if (dev->irq > 0 && (dev->irq <= 0xF) && + (acpi_isa_irq_to_gsi(dev->irq, &dev_gsi) == 0)) { + printk(" - using ISA IRQ %d\n", dev->irq); + acpi_register_gsi(&dev->dev, dev_gsi, ACPI_LEVEL_SENSITIVE, ACPI_ACTIVE_LOW); return 0; diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index ddc76787b842..f74d3b31e5c9 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -172,7 +172,6 @@ static int acpi_power_get_list_state(struct acpi_handle_list *list, int *state) return -EINVAL; /* The state of the list is 'on' IFF all resources are 'on'. */ - /* */ for (i = 0; i < list->count; i++) { /* diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 5939e7f7d8e9..c3817e1f32c7 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -698,7 +698,7 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset) "max_cstate: C%d\n" "maximum allowed latency: %d usec\n", pr->power.state ? pr->power.state - pr->power.states : 0, - max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)); + max_cstate, pm_qos_request(PM_QOS_CPU_DMA_LATENCY)); seq_puts(seq, "states:\n"); diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index 83bc49fac9bb..ec52fc618763 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -43,7 +43,7 @@ * driver the list of errata that are relevant is below, going back to * PIIX4. Older device documentation is now a bit tricky to find. * - * The chipsets all follow very much the same design. The orginal Triton + * The chipsets all follow very much the same design. The original Triton * series chipsets do _not_ support independant device timings, but this * is fixed in Triton II. With the odd mobile exception the chips then * change little except in gaining more modes until SATA arrives. This diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c index ef374388c0f6..118c28e8abaf 100644 --- a/drivers/ata/pata_pcmcia.c +++ b/drivers/ata/pata_pcmcia.c @@ -45,16 +45,6 @@ #define DRV_NAME "pata_pcmcia" #define DRV_VERSION "0.3.5" -/* - * Private data structure to glue stuff together - */ - -struct ata_pcmcia_info { - struct pcmcia_device *pdev; - int ndev; - dev_node_t node; -}; - /** * pcmcia_set_mode - PCMCIA specific mode setup * @link: link @@ -248,7 +238,6 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) { struct ata_host *host; struct ata_port *ap; - struct ata_pcmcia_info *info; struct pcmcia_config_check *stk = NULL; int is_kme = 0, ret = -ENOMEM, p; unsigned long io_base, ctl_base; @@ -256,19 +245,10 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) int n_ports = 1; struct ata_port_operations *ops = &pcmcia_port_ops; - info = kzalloc(sizeof(*info), GFP_KERNEL); - if (info == NULL) - return -ENOMEM; - - /* Glue stuff together. FIXME: We may be able to get rid of info with care */ - info->pdev = pdev; - pdev->priv = info; - /* Set up attributes in order to probe card and get resources */ pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; pdev->io.IOAddrLines = 3; - pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; pdev->conf.Attributes = CONF_ENABLE_IRQ; pdev->conf.IntType = INT_MEMORY_AND_IO; @@ -293,8 +273,7 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) } io_base = pdev->io.BasePort1; ctl_base = stk->ctl_base; - ret = pcmcia_request_irq(pdev, &pdev->irq); - if (ret) + if (!pdev->irq) goto failed; ret = pcmcia_request_configuration(pdev, &pdev->conf); @@ -344,21 +323,19 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) } /* activate */ - ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt, + ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, IRQF_SHARED, &pcmcia_sht); if (ret) goto failed; - info->ndev = 1; + pdev->priv = host; kfree(stk); return 0; failed: kfree(stk); - info->ndev = 0; pcmcia_disable_device(pdev); out1: - kfree(info); return ret; } @@ -372,20 +349,12 @@ out1: static void pcmcia_remove_one(struct pcmcia_device *pdev) { - struct ata_pcmcia_info *info = pdev->priv; - struct device *dev = &pdev->dev; - - if (info != NULL) { - /* If we have attached the device to the ATA layer, detach it */ - if (info->ndev) { - struct ata_host *host = dev_get_drvdata(dev); - ata_host_detach(host); - } - info->ndev = 0; - pdev->priv = NULL; - } + struct ata_host *host = pdev->priv; + + if (host) + ata_host_detach(host); + pcmcia_disable_device(pdev); - kfree(info); } static struct pcmcia_device_id pcmcia_devices[] = { diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c index 8ad4ffea6920..6e6b6a11b3ce 100644 --- a/drivers/base/iommu.c +++ b/drivers/base/iommu.c @@ -80,20 +80,6 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev) } EXPORT_SYMBOL_GPL(iommu_detach_device); -int iommu_map_range(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot) -{ - return iommu_ops->map(domain, iova, paddr, size, prot); -} -EXPORT_SYMBOL_GPL(iommu_map_range); - -void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova, - size_t size) -{ - iommu_ops->unmap(domain, iova, size); -} -EXPORT_SYMBOL_GPL(iommu_unmap_range); - phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, unsigned long iova) { @@ -107,3 +93,32 @@ int iommu_domain_has_cap(struct iommu_domain *domain, return iommu_ops->domain_has_cap(domain, cap); } EXPORT_SYMBOL_GPL(iommu_domain_has_cap); + +int iommu_map(struct iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, int gfp_order, int prot) +{ + unsigned long invalid_mask; + size_t size; + + size = 0x1000UL << gfp_order; + invalid_mask = size - 1; + + BUG_ON((iova | paddr) & invalid_mask); + + return iommu_ops->map(domain, iova, paddr, gfp_order, prot); +} +EXPORT_SYMBOL_GPL(iommu_map); + +int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order) +{ + unsigned long invalid_mask; + size_t size; + + size = 0x1000UL << gfp_order; + invalid_mask = size - 1; + + BUG_ON(iova & invalid_mask); + + return iommu_ops->unmap(domain, iova, gfp_order); +} +EXPORT_SYMBOL_GPL(iommu_unmap); diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 4b4b565c835f..ada6397c23a5 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -187,7 +187,7 @@ EXPORT_SYMBOL_GPL(platform_device_alloc); * released. */ int platform_device_add_resources(struct platform_device *pdev, - struct resource *res, unsigned int num) + const struct resource *res, unsigned int num) { struct resource *r; @@ -367,7 +367,7 @@ EXPORT_SYMBOL_GPL(platform_device_unregister); */ struct platform_device *platform_device_register_simple(const char *name, int id, - struct resource *res, + const struct resource *res, unsigned int num) { struct platform_device *pdev; @@ -967,17 +967,17 @@ static int platform_pm_restore_noirq(struct device *dev) int __weak platform_pm_runtime_suspend(struct device *dev) { - return -ENOSYS; + return pm_generic_runtime_suspend(dev); }; int __weak platform_pm_runtime_resume(struct device *dev) { - return -ENOSYS; + return pm_generic_runtime_resume(dev); }; int __weak platform_pm_runtime_idle(struct device *dev) { - return -ENOSYS; + return pm_generic_runtime_idle(dev); }; #else /* !CONFIG_PM_RUNTIME */ @@ -1254,6 +1254,26 @@ static int __init early_platform_driver_probe_id(char *class_str, } if (match) { + /* + * Set up a sensible init_name to enable + * dev_name() and others to be used before the + * rest of the driver core is initialized. + */ + if (!match->dev.init_name && slab_is_available()) { + if (match->id != -1) + match->dev.init_name = + kasprintf(GFP_KERNEL, "%s.%d", + match->name, + match->id); + else + match->dev.init_name = + kasprintf(GFP_KERNEL, "%s", + match->name); + + if (!match->dev.init_name) + return -ENOMEM; + } + if (epdrv->pdrv->probe(match)) pr_warning("%s: unable to probe %s early.\n", class_str, match->name); diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c index 626dd147b75f..b0ec0e9f27e9 100644 --- a/drivers/base/power/runtime.c +++ b/drivers/base/power/runtime.c @@ -229,14 +229,16 @@ int __pm_runtime_suspend(struct device *dev, bool from_wq) if (retval) { dev->power.runtime_status = RPM_ACTIVE; - pm_runtime_cancel_pending(dev); - if (retval == -EAGAIN || retval == -EBUSY) { - notify = true; + if (dev->power.timer_expires == 0) + notify = true; dev->power.runtime_error = 0; + } else { + pm_runtime_cancel_pending(dev); } } else { dev->power.runtime_status = RPM_SUSPENDED; + pm_runtime_deactivate_timer(dev); if (dev->parent) { parent = dev->parent; @@ -659,8 +661,6 @@ int pm_schedule_suspend(struct device *dev, unsigned int delay) if (dev->power.runtime_status == RPM_SUSPENDED) retval = 1; - else if (dev->power.runtime_status == RPM_SUSPENDING) - retval = -EINPROGRESS; else if (atomic_read(&dev->power.usage_count) > 0 || dev->power.disable_depth > 0) retval = -EAGAIN; diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c index 86fd9373447e..a4c33bc51257 100644 --- a/drivers/base/power/sysfs.c +++ b/drivers/base/power/sysfs.c @@ -5,6 +5,7 @@ #include <linux/device.h> #include <linux/string.h> #include <linux/pm_runtime.h> +#include <asm/atomic.h> #include "power.h" /* @@ -143,7 +144,59 @@ wake_store(struct device * dev, struct device_attribute *attr, static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store); -#ifdef CONFIG_PM_SLEEP_ADVANCED_DEBUG +#ifdef CONFIG_PM_ADVANCED_DEBUG +#ifdef CONFIG_PM_RUNTIME + +static ssize_t rtpm_usagecount_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", atomic_read(&dev->power.usage_count)); +} + +static ssize_t rtpm_children_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", dev->power.ignore_children ? + 0 : atomic_read(&dev->power.child_count)); +} + +static ssize_t rtpm_enabled_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + if ((dev->power.disable_depth) && (dev->power.runtime_auto == false)) + return sprintf(buf, "disabled & forbidden\n"); + else if (dev->power.disable_depth) + return sprintf(buf, "disabled\n"); + else if (dev->power.runtime_auto == false) + return sprintf(buf, "forbidden\n"); + return sprintf(buf, "enabled\n"); +} + +static ssize_t rtpm_status_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + if (dev->power.runtime_error) + return sprintf(buf, "error\n"); + switch (dev->power.runtime_status) { + case RPM_SUSPENDED: + return sprintf(buf, "suspended\n"); + case RPM_SUSPENDING: + return sprintf(buf, "suspending\n"); + case RPM_RESUMING: + return sprintf(buf, "resuming\n"); + case RPM_ACTIVE: + return sprintf(buf, "active\n"); + } + return -EIO; +} + +static DEVICE_ATTR(runtime_usage, 0444, rtpm_usagecount_show, NULL); +static DEVICE_ATTR(runtime_active_kids, 0444, rtpm_children_show, NULL); +static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL); +static DEVICE_ATTR(runtime_enabled, 0444, rtpm_enabled_show, NULL); + +#endif + static ssize_t async_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -170,15 +223,21 @@ static ssize_t async_store(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(async, 0644, async_show, async_store); -#endif /* CONFIG_PM_SLEEP_ADVANCED_DEBUG */ +#endif /* CONFIG_PM_ADVANCED_DEBUG */ static struct attribute * power_attrs[] = { #ifdef CONFIG_PM_RUNTIME &dev_attr_control.attr, #endif &dev_attr_wakeup.attr, -#ifdef CONFIG_PM_SLEEP_ADVANCED_DEBUG +#ifdef CONFIG_PM_ADVANCED_DEBUG &dev_attr_async.attr, +#ifdef CONFIG_PM_RUNTIME + &dev_attr_runtime_usage.attr, + &dev_attr_runtime_active_kids.attr, + &dev_attr_runtime_status.attr, + &dev_attr_runtime_enabled.attr, +#endif #endif NULL, }; diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c index 0182a22c423a..832798aa14f6 100644 --- a/drivers/block/amiflop.c +++ b/drivers/block/amiflop.c @@ -66,6 +66,7 @@ #include <linux/blkdev.h> #include <linux/elevator.h> #include <linux/interrupt.h> +#include <linux/platform_device.h> #include <asm/setup.h> #include <asm/uaccess.h> @@ -1696,34 +1697,18 @@ static struct kobject *floppy_find(dev_t dev, int *part, void *data) return get_disk(unit[drive].gendisk); } -static int __init amiga_floppy_init(void) +static int __init amiga_floppy_probe(struct platform_device *pdev) { int i, ret; - if (!MACH_IS_AMIGA) - return -ENODEV; - - if (!AMIGAHW_PRESENT(AMI_FLOPPY)) - return -ENODEV; - if (register_blkdev(FLOPPY_MAJOR,"fd")) return -EBUSY; - /* - * We request DSKPTR, DSKLEN and DSKDATA only, because the other - * floppy registers are too spreaded over the custom register space - */ - ret = -EBUSY; - if (!request_mem_region(CUSTOM_PHYSADDR+0x20, 8, "amiflop [Paula]")) { - printk("fd: cannot get floppy registers\n"); - goto out_blkdev; - } - ret = -ENOMEM; if ((raw_buf = (char *)amiga_chip_alloc (RAW_BUF_SIZE, "Floppy")) == NULL) { printk("fd: cannot get chip mem buffer\n"); - goto out_memregion; + goto out_blkdev; } ret = -EBUSY; @@ -1792,18 +1777,13 @@ out_irq2: free_irq(IRQ_AMIGA_DSKBLK, NULL); out_irq: amiga_chip_free(raw_buf); -out_memregion: - release_mem_region(CUSTOM_PHYSADDR+0x20, 8); out_blkdev: unregister_blkdev(FLOPPY_MAJOR,"fd"); return ret; } -module_init(amiga_floppy_init); -#ifdef MODULE - #if 0 /* not safe to unload */ -void cleanup_module(void) +static int __exit amiga_floppy_remove(struct platform_device *pdev) { int i; @@ -1820,12 +1800,25 @@ void cleanup_module(void) custom.dmacon = DMAF_DISK; /* disable DMA */ amiga_chip_free(raw_buf); blk_cleanup_queue(floppy_queue); - release_mem_region(CUSTOM_PHYSADDR+0x20, 8); unregister_blkdev(FLOPPY_MAJOR, "fd"); } #endif -#else +static struct platform_driver amiga_floppy_driver = { + .driver = { + .name = "amiga-floppy", + .owner = THIS_MODULE, + }, +}; + +static int __init amiga_floppy_init(void) +{ + return platform_driver_probe(&amiga_floppy_driver, amiga_floppy_probe); +} + +module_init(amiga_floppy_init); + +#ifndef MODULE static int __init amiga_floppy_setup (char *str) { int n; @@ -1840,3 +1833,5 @@ static int __init amiga_floppy_setup (char *str) __setup("floppy=", amiga_floppy_setup); #endif + +MODULE_ALIAS("platform:amiga-floppy"); diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index eb5ff0531cfb..51ceaee98f9f 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -1588,7 +1588,6 @@ static int cciss_ioctl(struct block_device *bdev, fmode_t mode, c->Request = ioc->Request; if (ioc->buf_size > 0) { - int i; for (i = 0; i < sg_used; i++) { temp64.val = pci_map_single(host->pdev, buff[i], @@ -2434,7 +2433,7 @@ static int deregister_disk(ctlr_info_t *h, int drv_index, /* if it was the last disk, find the new hightest lun */ if (clear_all && recalculate_highest_lun) { - int i, newhighest = -1; + int newhighest = -1; for (i = 0; i <= h->highest_lun; i++) { /* if the disk has size > 0, it is available */ if (h->drv[i] && h->drv[i]->heads) diff --git a/drivers/block/hd.c b/drivers/block/hd.c index 034e6dfc878c..81c78b3ce2df 100644 --- a/drivers/block/hd.c +++ b/drivers/block/hd.c @@ -164,12 +164,12 @@ unsigned long read_timer(void) unsigned long t, flags; int i; - spin_lock_irqsave(&i8253_lock, flags); + raw_spin_lock_irqsave(&i8253_lock, flags); t = jiffies * 11932; outb_p(0, 0x43); i = inb_p(0x40); i |= inb(0x40) << 8; - spin_unlock_irqrestore(&i8253_lock, flags); + raw_spin_unlock_irqrestore(&i8253_lock, flags); return(t - i); } #endif diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c index d9bf87ca9e83..6f907ebed2d5 100644 --- a/drivers/bluetooth/bluecard_cs.c +++ b/drivers/bluetooth/bluecard_cs.c @@ -65,7 +65,6 @@ MODULE_LICENSE("GPL"); typedef struct bluecard_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct hci_dev *hdev; @@ -869,9 +868,6 @@ static int bluecard_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = bluecard_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -908,9 +904,9 @@ static int bluecard_config(struct pcmcia_device *link) if (i != 0) goto failed; - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, bluecard_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) @@ -919,9 +915,6 @@ static int bluecard_config(struct pcmcia_device *link) if (bluecard_open(info) != 0) goto failed; - strcpy(info->node.dev_name, info->hdev->name); - link->dev_node = &info->node; - return 0; failed: diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c index 027cb8bf650f..21e05fdc9121 100644 --- a/drivers/bluetooth/bt3c_cs.c +++ b/drivers/bluetooth/bt3c_cs.c @@ -72,7 +72,6 @@ MODULE_FIRMWARE("BT3CPCC.bin"); typedef struct bt3c_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct hci_dev *hdev; @@ -661,9 +660,6 @@ static int bt3c_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = bt3c_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -743,9 +739,9 @@ static int bt3c_config(struct pcmcia_device *link) goto failed; found_port: - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, &bt3c_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) @@ -754,9 +750,6 @@ found_port: if (bt3c_open(info) != 0) goto failed; - strcpy(info->node.dev_name, info->hdev->name); - link->dev_node = &info->node; - return 0; failed: diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c index 60c0953d7d00..4ed7288f99db 100644 --- a/drivers/bluetooth/btuart_cs.c +++ b/drivers/bluetooth/btuart_cs.c @@ -67,7 +67,6 @@ MODULE_LICENSE("GPL"); typedef struct btuart_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct hci_dev *hdev; @@ -590,9 +589,6 @@ static int btuart_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = btuart_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -672,9 +668,9 @@ static int btuart_config(struct pcmcia_device *link) goto failed; found_port: - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, btuart_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) @@ -683,9 +679,6 @@ found_port: if (btuart_open(info) != 0) goto failed; - strcpy(info->node.dev_name, info->hdev->name); - link->dev_node = &info->node; - return 0; failed: diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c index 17788317c51a..ef044d55cb25 100644 --- a/drivers/bluetooth/dtl1_cs.c +++ b/drivers/bluetooth/dtl1_cs.c @@ -67,7 +67,6 @@ MODULE_LICENSE("GPL"); typedef struct dtl1_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct hci_dev *hdev; @@ -575,9 +574,6 @@ static int dtl1_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = dtl1_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -621,9 +617,9 @@ static int dtl1_config(struct pcmcia_device *link) if (pcmcia_loop_config(link, dtl1_confcheck, NULL) < 0) goto failed; - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, dtl1_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) @@ -632,9 +628,6 @@ static int dtl1_config(struct pcmcia_device *link) if (dtl1_open(info) != 0) goto failed; - strcpy(info->node.dev_name, info->hdev->name); - link->dev_node = &info->node; - return 0; failed: diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c index fb86708e47ed..4b51982fd23a 100644 --- a/drivers/char/agp/generic.c +++ b/drivers/char/agp/generic.c @@ -1214,7 +1214,7 @@ struct agp_memory *agp_generic_alloc_user(size_t page_count, int type) return NULL; for (i = 0; i < page_count; i++) - new->pages[i] = 0; + new->pages[i] = NULL; new->page_count = 0; new->type = type; new->num_scratch_pages = pages; diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c index 7fef305774de..89d871ef8c2f 100644 --- a/drivers/char/bsr.c +++ b/drivers/char/bsr.c @@ -253,7 +253,7 @@ static int bsr_add_node(struct device_node *bn) cur->bsr_device = device_create(bsr_class, NULL, cur->bsr_dev, cur, cur->bsr_name); - if (!cur->bsr_device) { + if (IS_ERR(cur->bsr_device)) { printk(KERN_ERR "device_create failed for %s\n", cur->bsr_name); cdev_del(&cur->bsr_cdev); diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c index fc8cf7ac7f2b..4cd8b227c11f 100644 --- a/drivers/char/i8k.c +++ b/drivers/char/i8k.c @@ -23,6 +23,7 @@ #include <linux/seq_file.h> #include <linux/dmi.h> #include <linux/capability.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -82,8 +83,7 @@ module_param(fan_mult, int, 0); MODULE_PARM_DESC(fan_mult, "Factor to multiply fan speed with"); static int i8k_open_fs(struct inode *inode, struct file *file); -static int i8k_ioctl(struct inode *, struct file *, unsigned int, - unsigned long); +static long i8k_ioctl(struct file *, unsigned int, unsigned long); static const struct file_operations i8k_fops = { .owner = THIS_MODULE, @@ -91,7 +91,7 @@ static const struct file_operations i8k_fops = { .read = seq_read, .llseek = seq_lseek, .release = single_release, - .ioctl = i8k_ioctl, + .unlocked_ioctl = i8k_ioctl, }; struct smm_regs { @@ -307,8 +307,8 @@ static int i8k_get_dell_signature(int req_fn) return regs.eax == 1145651527 && regs.edx == 1145392204 ? 0 : -1; } -static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, - unsigned long arg) +static int +i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg) { int val = 0; int speed; @@ -395,6 +395,17 @@ static int i8k_ioctl(struct inode *ip, struct file *fp, unsigned int cmd, return 0; } +static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) +{ + long ret; + + lock_kernel(); + ret = i8k_ioctl_unlocked(fp, cmd, arg); + unlock_kernel(); + + return ret; +} + /* * Print the information for /proc/i8k. */ diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index 90b199f97bec..e7956acf2ad6 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -106,7 +106,6 @@ static int major; /* major number we get from the kernel */ struct cm4000_dev { struct pcmcia_device *p_dev; - dev_node_t node; /* OS node (major,minor) */ unsigned char atr[MAX_ATR]; unsigned char rbuf[512]; @@ -884,8 +883,7 @@ static void monitor_card(unsigned long p) /* slow down warning, but prompt immediately after insertion */ if (dev->cwarn == 0 || dev->cwarn == 10) { set_bit(IS_BAD_CARD, &dev->flags); - printk(KERN_WARNING MODULE_NAME ": device %s: ", - dev->node.dev_name); + dev_warn(&dev->p_dev->dev, MODULE_NAME ": "); if (test_bit(IS_BAD_CSUM, &dev->flags)) { DEBUGP(4, dev, "ATR checksum (0x%.2x, should " "be zero) failed\n", dev->atr_csum); @@ -1781,11 +1779,6 @@ static int cm4000_config(struct pcmcia_device * link, int devno) goto cs_release; dev = link->priv; - sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); - dev->node.major = major; - dev->node.minor = devno; - dev->node.next = NULL; - link->dev_node = &dev->node; return 0; diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c index a6a70e476bea..c0775c844e08 100644 --- a/drivers/char/pcmcia/cm4040_cs.c +++ b/drivers/char/pcmcia/cm4040_cs.c @@ -72,7 +72,6 @@ static struct class *cmx_class; struct reader_dev { struct pcmcia_device *p_dev; - dev_node_t node; wait_queue_head_t devq; wait_queue_head_t poll_wait; wait_queue_head_t read_wait; @@ -568,10 +567,6 @@ static int reader_config(struct pcmcia_device *link, int devno) } dev = link->priv; - sprintf(dev->node.dev_name, DEVICE_NAME "%d", devno); - dev->node.major = major; - dev->node.minor = devno; - dev->node.next = &dev->node; DEBUGP(2, dev, "device " DEVICE_NAME "%d at 0x%.4x-0x%.4x\n", devno, link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1); diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c index dff24dae1485..63c32e3f23ba 100644 --- a/drivers/char/pcmcia/ipwireless/main.c +++ b/drivers/char/pcmcia/ipwireless/main.c @@ -195,9 +195,6 @@ static int config_ipwireless(struct ipw_dev *ipw) link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = ipwireless_interrupt; - INIT_WORK(&ipw->work_reboot, signalled_reboot_work); ipwireless_init_hardware_v1(ipw->hardware, link->io.BasePort1, @@ -205,8 +202,7 @@ static int config_ipwireless(struct ipw_dev *ipw) ipw->is_v2_card, signalled_reboot_callback, ipw); - ret = pcmcia_request_irq(link, &link->irq); - + ret = pcmcia_request_irq(link, ipwireless_interrupt); if (ret != 0) goto exit; @@ -217,7 +213,7 @@ static int config_ipwireless(struct ipw_dev *ipw) (unsigned int) link->io.BasePort1, (unsigned int) (link->io.BasePort1 + link->io.NumPorts1 - 1), - (unsigned int) link->irq.AssignedIRQ); + (unsigned int) link->irq); if (ipw->attr_memory && ipw->common_memory) printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n", @@ -232,8 +228,7 @@ static int config_ipwireless(struct ipw_dev *ipw) if (!ipw->network) goto exit; - ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network, - ipw->nodes); + ipw->tty = ipwireless_tty_create(ipw->hardware, ipw->network); if (!ipw->tty) goto exit; @@ -248,8 +243,6 @@ static int config_ipwireless(struct ipw_dev *ipw) if (ret != 0) goto exit; - link->dev_node = &ipw->nodes[0]; - return 0; exit: @@ -271,8 +264,6 @@ exit: static void release_ipwireless(struct ipw_dev *ipw) { - pcmcia_disable_device(ipw->link); - if (ipw->common_memory) { release_mem_region(ipw->request_common_memory.Base, ipw->request_common_memory.Size); @@ -288,7 +279,6 @@ static void release_ipwireless(struct ipw_dev *ipw) if (ipw->attr_memory) pcmcia_release_window(ipw->link, ipw->handle_attr_memory); - /* Break the link with Card Services */ pcmcia_disable_device(ipw->link); } @@ -313,9 +303,6 @@ static int ipwireless_attach(struct pcmcia_device *link) ipw->link = link; link->priv = ipw; - /* Link this device into our device list. */ - link->dev_node = &ipw->nodes[0]; - ipw->hardware = ipwireless_hardware_create(); if (!ipw->hardware) { kfree(ipw); diff --git a/drivers/char/pcmcia/ipwireless/main.h b/drivers/char/pcmcia/ipwireless/main.h index 0e0363af9ab2..96d0ef31b172 100644 --- a/drivers/char/pcmcia/ipwireless/main.h +++ b/drivers/char/pcmcia/ipwireless/main.h @@ -54,7 +54,6 @@ struct ipw_dev { void __iomem *common_memory; win_req_t request_common_memory; - dev_node_t nodes[2]; /* Reference to attribute memory, containing CIS data */ void *attribute_memory; diff --git a/drivers/char/pcmcia/ipwireless/tty.c b/drivers/char/pcmcia/ipwireless/tty.c index 2bb7874a6899..1a2c2c3b068f 100644 --- a/drivers/char/pcmcia/ipwireless/tty.c +++ b/drivers/char/pcmcia/ipwireless/tty.c @@ -487,7 +487,7 @@ static int ipw_ioctl(struct tty_struct *linux_tty, struct file *file, return tty_mode_ioctl(linux_tty, file, cmd , arg); } -static int add_tty(dev_node_t *nodesp, int j, +static int add_tty(int j, struct ipw_hardware *hardware, struct ipw_network *network, int channel_idx, int secondary_channel_idx, int tty_type) @@ -510,19 +510,13 @@ static int add_tty(dev_node_t *nodesp, int j, ipwireless_associate_network_tty(network, secondary_channel_idx, ttys[j]); - if (nodesp != NULL) { - sprintf(nodesp->dev_name, "ttyIPWp%d", j); - nodesp->major = ipw_tty_driver->major; - nodesp->minor = j + ipw_tty_driver->minor_start; - } if (get_tty(j + ipw_tty_driver->minor_start) == ttys[j]) report_registering(ttys[j]); return 0; } struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hardware, - struct ipw_network *network, - dev_node_t *nodes) + struct ipw_network *network) { int i, j; @@ -539,26 +533,23 @@ struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hardware, if (allfree) { j = i; - if (add_tty(&nodes[0], j, hardware, network, + if (add_tty(j, hardware, network, IPW_CHANNEL_DIALLER, IPW_CHANNEL_RAS, TTYTYPE_MODEM)) return NULL; j += IPWIRELESS_PCMCIA_MINOR_RANGE; - if (add_tty(&nodes[1], j, hardware, network, + if (add_tty(j, hardware, network, IPW_CHANNEL_DIALLER, -1, TTYTYPE_MONITOR)) return NULL; j += IPWIRELESS_PCMCIA_MINOR_RANGE; - if (add_tty(NULL, j, hardware, network, + if (add_tty(j, hardware, network, IPW_CHANNEL_RAS, -1, TTYTYPE_RAS_RAW)) return NULL; - nodes[0].next = &nodes[1]; - nodes[1].next = NULL; - return ttys[i]; } } diff --git a/drivers/char/pcmcia/ipwireless/tty.h b/drivers/char/pcmcia/ipwireless/tty.h index b0deb9168b6b..4da6c201f727 100644 --- a/drivers/char/pcmcia/ipwireless/tty.h +++ b/drivers/char/pcmcia/ipwireless/tty.h @@ -34,8 +34,7 @@ int ipwireless_tty_init(void); void ipwireless_tty_release(void); struct ipw_tty *ipwireless_tty_create(struct ipw_hardware *hw, - struct ipw_network *net, - dev_node_t *nodes); + struct ipw_network *net); void ipwireless_tty_free(struct ipw_tty *tty); void ipwireless_tty_received(struct ipw_tty *tty, unsigned char *data, unsigned int length); diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index c31a0d913d37..308903ec8bf8 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -220,7 +220,6 @@ typedef struct _mgslpc_info { /* PCMCIA support */ struct pcmcia_device *p_dev; - dev_node_t node; int stop; /* SPPP/Cisco HDLC device parts */ @@ -552,10 +551,6 @@ static int mgslpc_probe(struct pcmcia_device *link) /* Initialize the struct pcmcia_device structure */ - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; @@ -608,9 +603,7 @@ static int mgslpc_config(struct pcmcia_device *link) link->conf.ConfigIndex = 8; link->conf.Present = PRESENT_OPTION; - link->irq.Handler = mgslpc_isr; - - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, mgslpc_isr); if (ret) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -618,17 +611,12 @@ static int mgslpc_config(struct pcmcia_device *link) goto failed; info->io_base = link->io.BasePort1; - info->irq_level = link->irq.AssignedIRQ; - - /* add to linked list of devices */ - sprintf(info->node.dev_name, "mgslpc0"); - info->node.major = info->node.minor = 0; - link->dev_node = &info->node; + info->irq_level = link->irq; - printk(KERN_INFO "%s: index 0x%02x:", - info->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x:", + link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); diff --git a/drivers/char/serial167.c b/drivers/char/serial167.c index 8dfd24721a82..78a62ebe75c7 100644 --- a/drivers/char/serial167.c +++ b/drivers/char/serial167.c @@ -627,7 +627,6 @@ static irqreturn_t cd2401_rx_interrupt(int irq, void *dev_id) char data; int char_count; int save_cnt; - int len; /* determine the channel and change to that context */ channel = (u_short) (base_addr[CyLICR] >> 2); @@ -1528,7 +1527,6 @@ static int cy_ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg) { - unsigned long val; struct cyclades_port *info = tty->driver_data; int ret_val = 0; void __user *argp = (void __user *)arg; diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index 59de2525d303..d4e8b213a462 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -289,7 +289,7 @@ static struct sysrq_key_op sysrq_showstate_blocked_op = { static void sysrq_ftrace_dump(int key, struct tty_struct *tty) { - ftrace_dump(); + ftrace_dump(DUMP_ALL); } static struct sysrq_key_op sysrq_ftrace_dump_op = { .handler = sysrq_ftrace_dump, diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig index f5fc64f89c5c..4dc338f3d1aa 100644 --- a/drivers/char/tpm/Kconfig +++ b/drivers/char/tpm/Kconfig @@ -17,14 +17,16 @@ menuconfig TCG_TPM obtained at: <http://sourceforge.net/projects/trousers>. To compile this driver as a module, choose M here; the module will be called tpm. If unsure, say N. - Note: For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI + Notes: + 1) For more TPM drivers enable CONFIG_PNP, CONFIG_ACPI and CONFIG_PNPACPI. + 2) Without ACPI enabled, the BIOS event log won't be accessible, + which is required to validate the PCR 0-7 values. if TCG_TPM config TCG_TIS tristate "TPM Interface Specification 1.2 Interface" - depends on PNP ---help--- If you have a TPM security chip that is compliant with the TCG TIS 1.2 TPM specification say Yes and it will be accessible diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index 068c816e6942..05ad4a17a28f 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -1068,6 +1068,27 @@ void tpm_remove_hardware(struct device *dev) } EXPORT_SYMBOL_GPL(tpm_remove_hardware); +#define TPM_ORD_SAVESTATE cpu_to_be32(152) +#define SAVESTATE_RESULT_SIZE 10 + +static struct tpm_input_header savestate_header = { + .tag = TPM_TAG_RQU_COMMAND, + .length = cpu_to_be32(10), + .ordinal = TPM_ORD_SAVESTATE +}; + +/* Bug workaround - some TPM's don't flush the most + * recently changed pcr on suspend, so force the flush + * with an extend to the selected _unused_ non-volatile pcr. + */ +static int tpm_suspend_pcr; +static int __init tpm_suspend_setup(char *str) +{ + get_option(&str, &tpm_suspend_pcr); + return 1; +} +__setup("tpm_suspend_pcr=", tpm_suspend_setup); + /* * We are about to suspend. Save the TPM state * so that it can be restored. @@ -1075,17 +1096,29 @@ EXPORT_SYMBOL_GPL(tpm_remove_hardware); int tpm_pm_suspend(struct device *dev, pm_message_t pm_state) { struct tpm_chip *chip = dev_get_drvdata(dev); - u8 savestate[] = { - 0, 193, /* TPM_TAG_RQU_COMMAND */ - 0, 0, 0, 10, /* blob length (in bytes) */ - 0, 0, 0, 152 /* TPM_ORD_SaveState */ - }; + struct tpm_cmd_t cmd; + int rc; + + u8 dummy_hash[TPM_DIGEST_SIZE] = { 0 }; if (chip == NULL) return -ENODEV; - tpm_transmit(chip, savestate, sizeof(savestate)); - return 0; + /* for buggy tpm, flush pcrs with extend to selected dummy */ + if (tpm_suspend_pcr) { + cmd.header.in = pcrextend_header; + cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(tpm_suspend_pcr); + memcpy(cmd.params.pcrextend_in.hash, dummy_hash, + TPM_DIGEST_SIZE); + rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE, + "extending dummy pcr before suspend"); + } + + /* now do the actual savestate */ + cmd.header.in = savestate_header; + rc = transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, + "sending savestate before suspend"); + return rc; } EXPORT_SYMBOL_GPL(tpm_pm_suspend); diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c index 94345994f8a6..24314a9cffe8 100644 --- a/drivers/char/tpm/tpm_tis.c +++ b/drivers/char/tpm/tpm_tis.c @@ -598,7 +598,7 @@ out_err: tpm_remove_hardware(chip->dev); return rc; } - +#ifdef CONFIG_PNP static int __devinit tpm_tis_pnp_init(struct pnp_dev *pnp_dev, const struct pnp_device_id *pnp_id) { @@ -663,7 +663,7 @@ static struct pnp_driver tis_pnp_driver = { module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id, sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444); MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe"); - +#endif static int tpm_tis_suspend(struct platform_device *dev, pm_message_t msg) { return tpm_pm_suspend(&dev->dev, msg); @@ -690,21 +690,21 @@ MODULE_PARM_DESC(force, "Force device probe rather than using ACPI entry"); static int __init init_tis(void) { int rc; +#ifdef CONFIG_PNP + if (!force) + return pnp_register_driver(&tis_pnp_driver); +#endif - if (force) { - rc = platform_driver_register(&tis_drv); - if (rc < 0) - return rc; - if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0))) - return PTR_ERR(pdev); - if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) { - platform_device_unregister(pdev); - platform_driver_unregister(&tis_drv); - } + rc = platform_driver_register(&tis_drv); + if (rc < 0) return rc; + if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0))) + return PTR_ERR(pdev); + if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) { + platform_device_unregister(pdev); + platform_driver_unregister(&tis_drv); } - - return pnp_register_driver(&tis_pnp_driver); + return rc; } static void __exit cleanup_tis(void) @@ -728,12 +728,14 @@ static void __exit cleanup_tis(void) list_del(&i->list); } spin_unlock(&tis_lock); - - if (force) { - platform_device_unregister(pdev); - platform_driver_unregister(&tis_drv); - } else +#ifdef CONFIG_PNP + if (!force) { pnp_unregister_driver(&tis_pnp_driver); + return; + } +#endif + platform_device_unregister(pdev); + platform_driver_unregister(&tis_drv); } module_init(init_tis); diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c index b314a999aabe..d7be69f13154 100644 --- a/drivers/clocksource/cs5535-clockevt.c +++ b/drivers/clocksource/cs5535-clockevt.c @@ -154,14 +154,14 @@ static int __init cs5535_mfgpt_init(void) if (cs5535_mfgpt_setup_irq(timer, MFGPT_CMP2, &timer_irq)) { printk(KERN_ERR DRV_NAME ": Could not set up IRQ %d\n", timer_irq); - return -EIO; + goto err_timer; } /* And register it with the kernel */ ret = setup_irq(timer_irq, &mfgptirq); if (ret) { printk(KERN_ERR DRV_NAME ": Unable to set up the interrupt.\n"); - goto err; + goto err_irq; } /* Set the clock scale and enable the event mode for CMP2 */ @@ -184,8 +184,10 @@ static int __init cs5535_mfgpt_init(void) return 0; -err: +err_irq: cs5535_mfgpt_release_irq(cs5535_event_clock, MFGPT_CMP2, &timer_irq); +err_timer: + cs5535_mfgpt_free_timer(cs5535_event_clock); printk(KERN_ERR DRV_NAME ": Unable to set up the MFGPT clock source\n"); return -EIO; } diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c index 744f748cc84b..f6677cb19789 100644 --- a/drivers/clocksource/sh_cmt.c +++ b/drivers/clocksource/sh_cmt.c @@ -150,13 +150,12 @@ static void sh_cmt_start_stop_ch(struct sh_cmt_priv *p, int start) static int sh_cmt_enable(struct sh_cmt_priv *p, unsigned long *rate) { - struct sh_timer_config *cfg = p->pdev->dev.platform_data; int ret; /* enable clock */ ret = clk_enable(p->clk); if (ret) { - pr_err("sh_cmt: cannot enable clock \"%s\"\n", cfg->clk); + dev_err(&p->pdev->dev, "cannot enable clock\n"); return ret; } @@ -279,7 +278,7 @@ static void sh_cmt_clock_event_program_verify(struct sh_cmt_priv *p, delay = 1; if (!delay) - pr_warning("sh_cmt: too long delay\n"); + dev_warn(&p->pdev->dev, "too long delay\n"); } while (delay); } @@ -289,7 +288,7 @@ static void sh_cmt_set_next(struct sh_cmt_priv *p, unsigned long delta) unsigned long flags; if (delta > p->max_match_value) - pr_warning("sh_cmt: delta out of range\n"); + dev_warn(&p->pdev->dev, "delta out of range\n"); spin_lock_irqsave(&p->lock, flags); p->next_match_value = delta; @@ -451,7 +450,7 @@ static int sh_cmt_register_clocksource(struct sh_cmt_priv *p, cs->resume = sh_cmt_clocksource_resume; cs->mask = CLOCKSOURCE_MASK(sizeof(unsigned long) * 8); cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; - pr_info("sh_cmt: %s used as clock source\n", cs->name); + dev_info(&p->pdev->dev, "used as clock source\n"); clocksource_register(cs); return 0; } @@ -497,13 +496,11 @@ static void sh_cmt_clock_event_mode(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - pr_info("sh_cmt: %s used for periodic clock events\n", - ced->name); + dev_info(&p->pdev->dev, "used for periodic clock events\n"); sh_cmt_clock_event_start(p, 1); break; case CLOCK_EVT_MODE_ONESHOT: - pr_info("sh_cmt: %s used for oneshot clock events\n", - ced->name); + dev_info(&p->pdev->dev, "used for oneshot clock events\n"); sh_cmt_clock_event_start(p, 0); break; case CLOCK_EVT_MODE_SHUTDOWN: @@ -544,7 +541,7 @@ static void sh_cmt_register_clockevent(struct sh_cmt_priv *p, ced->set_next_event = sh_cmt_clock_event_next; ced->set_mode = sh_cmt_clock_event_mode; - pr_info("sh_cmt: %s used for clock events\n", ced->name); + dev_info(&p->pdev->dev, "used for clock events\n"); clockevents_register_device(ced); } @@ -601,22 +598,27 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev) /* map memory, let mapbase point to our channel */ p->mapbase = ioremap_nocache(res->start, resource_size(res)); if (p->mapbase == NULL) { - pr_err("sh_cmt: failed to remap I/O memory\n"); + dev_err(&p->pdev->dev, "failed to remap I/O memory\n"); goto err0; } /* request irq using setup_irq() (too early for request_irq()) */ - p->irqaction.name = cfg->name; + p->irqaction.name = dev_name(&p->pdev->dev); p->irqaction.handler = sh_cmt_interrupt; p->irqaction.dev_id = p; - p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL; + p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \ + IRQF_IRQPOLL | IRQF_NOBALANCING; /* get hold of clock */ - p->clk = clk_get(&p->pdev->dev, cfg->clk); + p->clk = clk_get(&p->pdev->dev, "cmt_fck"); if (IS_ERR(p->clk)) { - pr_err("sh_cmt: cannot get clock \"%s\"\n", cfg->clk); - ret = PTR_ERR(p->clk); - goto err1; + dev_warn(&p->pdev->dev, "using deprecated clock lookup\n"); + p->clk = clk_get(&p->pdev->dev, cfg->clk); + if (IS_ERR(p->clk)) { + dev_err(&p->pdev->dev, "cannot get clock\n"); + ret = PTR_ERR(p->clk); + goto err1; + } } if (resource_size(res) == 6) { @@ -629,17 +631,17 @@ static int sh_cmt_setup(struct sh_cmt_priv *p, struct platform_device *pdev) p->clear_bits = ~0xc000; } - ret = sh_cmt_register(p, cfg->name, + ret = sh_cmt_register(p, (char *)dev_name(&p->pdev->dev), cfg->clockevent_rating, cfg->clocksource_rating); if (ret) { - pr_err("sh_cmt: registration failed\n"); + dev_err(&p->pdev->dev, "registration failed\n"); goto err1; } ret = setup_irq(irq, &p->irqaction); if (ret) { - pr_err("sh_cmt: failed to request irq %d\n", irq); + dev_err(&p->pdev->dev, "failed to request irq %d\n", irq); goto err1; } @@ -654,11 +656,10 @@ err0: static int __devinit sh_cmt_probe(struct platform_device *pdev) { struct sh_cmt_priv *p = platform_get_drvdata(pdev); - struct sh_timer_config *cfg = pdev->dev.platform_data; int ret; if (p) { - pr_info("sh_cmt: %s kept as earlytimer\n", cfg->name); + dev_info(&pdev->dev, "kept as earlytimer\n"); return 0; } diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c index 5fb78bfd73bb..ef7a5be8a09f 100644 --- a/drivers/clocksource/sh_mtu2.c +++ b/drivers/clocksource/sh_mtu2.c @@ -119,13 +119,12 @@ static void sh_mtu2_start_stop_ch(struct sh_mtu2_priv *p, int start) static int sh_mtu2_enable(struct sh_mtu2_priv *p) { - struct sh_timer_config *cfg = p->pdev->dev.platform_data; int ret; /* enable clock */ ret = clk_enable(p->clk); if (ret) { - pr_err("sh_mtu2: cannot enable clock \"%s\"\n", cfg->clk); + dev_err(&p->pdev->dev, "cannot enable clock\n"); return ret; } @@ -194,8 +193,7 @@ static void sh_mtu2_clock_event_mode(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - pr_info("sh_mtu2: %s used for periodic clock events\n", - ced->name); + dev_info(&p->pdev->dev, "used for periodic clock events\n"); sh_mtu2_enable(p); break; case CLOCK_EVT_MODE_UNUSED: @@ -222,13 +220,13 @@ static void sh_mtu2_register_clockevent(struct sh_mtu2_priv *p, ced->cpumask = cpumask_of(0); ced->set_mode = sh_mtu2_clock_event_mode; - pr_info("sh_mtu2: %s used for clock events\n", ced->name); + dev_info(&p->pdev->dev, "used for clock events\n"); clockevents_register_device(ced); ret = setup_irq(p->irqaction.irq, &p->irqaction); if (ret) { - pr_err("sh_mtu2: failed to request irq %d\n", - p->irqaction.irq); + dev_err(&p->pdev->dev, "failed to request irq %d\n", + p->irqaction.irq); return; } } @@ -274,26 +272,32 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) /* map memory, let mapbase point to our channel */ p->mapbase = ioremap_nocache(res->start, resource_size(res)); if (p->mapbase == NULL) { - pr_err("sh_mtu2: failed to remap I/O memory\n"); + dev_err(&p->pdev->dev, "failed to remap I/O memory\n"); goto err0; } /* setup data for setup_irq() (too early for request_irq()) */ - p->irqaction.name = cfg->name; + p->irqaction.name = dev_name(&p->pdev->dev); p->irqaction.handler = sh_mtu2_interrupt; p->irqaction.dev_id = p; p->irqaction.irq = irq; - p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL; + p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \ + IRQF_IRQPOLL | IRQF_NOBALANCING; /* get hold of clock */ - p->clk = clk_get(&p->pdev->dev, cfg->clk); + p->clk = clk_get(&p->pdev->dev, "mtu2_fck"); if (IS_ERR(p->clk)) { - pr_err("sh_mtu2: cannot get clock \"%s\"\n", cfg->clk); - ret = PTR_ERR(p->clk); - goto err1; + dev_warn(&p->pdev->dev, "using deprecated clock lookup\n"); + p->clk = clk_get(&p->pdev->dev, cfg->clk); + if (IS_ERR(p->clk)) { + dev_err(&p->pdev->dev, "cannot get clock\n"); + ret = PTR_ERR(p->clk); + goto err1; + } } - return sh_mtu2_register(p, cfg->name, cfg->clockevent_rating); + return sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev), + cfg->clockevent_rating); err1: iounmap(p->mapbase); err0: @@ -303,11 +307,10 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev) static int __devinit sh_mtu2_probe(struct platform_device *pdev) { struct sh_mtu2_priv *p = platform_get_drvdata(pdev); - struct sh_timer_config *cfg = pdev->dev.platform_data; int ret; if (p) { - pr_info("sh_mtu2: %s kept as earlytimer\n", cfg->name); + dev_info(&pdev->dev, "kept as earlytimer\n"); return 0; } diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c index fc9ff1e5b770..8e44e14ec4c2 100644 --- a/drivers/clocksource/sh_tmu.c +++ b/drivers/clocksource/sh_tmu.c @@ -107,13 +107,12 @@ static void sh_tmu_start_stop_ch(struct sh_tmu_priv *p, int start) static int sh_tmu_enable(struct sh_tmu_priv *p) { - struct sh_timer_config *cfg = p->pdev->dev.platform_data; int ret; /* enable clock */ ret = clk_enable(p->clk); if (ret) { - pr_err("sh_tmu: cannot enable clock \"%s\"\n", cfg->clk); + dev_err(&p->pdev->dev, "cannot enable clock\n"); return ret; } @@ -229,7 +228,7 @@ static int sh_tmu_register_clocksource(struct sh_tmu_priv *p, cs->disable = sh_tmu_clocksource_disable; cs->mask = CLOCKSOURCE_MASK(32); cs->flags = CLOCK_SOURCE_IS_CONTINUOUS; - pr_info("sh_tmu: %s used as clock source\n", cs->name); + dev_info(&p->pdev->dev, "used as clock source\n"); clocksource_register(cs); return 0; } @@ -277,13 +276,11 @@ static void sh_tmu_clock_event_mode(enum clock_event_mode mode, switch (mode) { case CLOCK_EVT_MODE_PERIODIC: - pr_info("sh_tmu: %s used for periodic clock events\n", - ced->name); + dev_info(&p->pdev->dev, "used for periodic clock events\n"); sh_tmu_clock_event_start(p, 1); break; case CLOCK_EVT_MODE_ONESHOT: - pr_info("sh_tmu: %s used for oneshot clock events\n", - ced->name); + dev_info(&p->pdev->dev, "used for oneshot clock events\n"); sh_tmu_clock_event_start(p, 0); break; case CLOCK_EVT_MODE_UNUSED: @@ -324,13 +321,13 @@ static void sh_tmu_register_clockevent(struct sh_tmu_priv *p, ced->set_next_event = sh_tmu_clock_event_next; ced->set_mode = sh_tmu_clock_event_mode; - pr_info("sh_tmu: %s used for clock events\n", ced->name); + dev_info(&p->pdev->dev, "used for clock events\n"); clockevents_register_device(ced); ret = setup_irq(p->irqaction.irq, &p->irqaction); if (ret) { - pr_err("sh_tmu: failed to request irq %d\n", - p->irqaction.irq); + dev_err(&p->pdev->dev, "failed to request irq %d\n", + p->irqaction.irq); return; } } @@ -379,26 +376,31 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev) /* map memory, let mapbase point to our channel */ p->mapbase = ioremap_nocache(res->start, resource_size(res)); if (p->mapbase == NULL) { - pr_err("sh_tmu: failed to remap I/O memory\n"); + dev_err(&p->pdev->dev, "failed to remap I/O memory\n"); goto err0; } /* setup data for setup_irq() (too early for request_irq()) */ - p->irqaction.name = cfg->name; + p->irqaction.name = dev_name(&p->pdev->dev); p->irqaction.handler = sh_tmu_interrupt; p->irqaction.dev_id = p; p->irqaction.irq = irq; - p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL; + p->irqaction.flags = IRQF_DISABLED | IRQF_TIMER | \ + IRQF_IRQPOLL | IRQF_NOBALANCING; /* get hold of clock */ - p->clk = clk_get(&p->pdev->dev, cfg->clk); + p->clk = clk_get(&p->pdev->dev, "tmu_fck"); if (IS_ERR(p->clk)) { - pr_err("sh_tmu: cannot get clock \"%s\"\n", cfg->clk); - ret = PTR_ERR(p->clk); - goto err1; + dev_warn(&p->pdev->dev, "using deprecated clock lookup\n"); + p->clk = clk_get(&p->pdev->dev, cfg->clk); + if (IS_ERR(p->clk)) { + dev_err(&p->pdev->dev, "cannot get clock\n"); + ret = PTR_ERR(p->clk); + goto err1; + } } - return sh_tmu_register(p, cfg->name, + return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev), cfg->clockevent_rating, cfg->clocksource_rating); err1: @@ -410,11 +412,10 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev) static int __devinit sh_tmu_probe(struct platform_device *pdev) { struct sh_tmu_priv *p = platform_get_drvdata(pdev); - struct sh_timer_config *cfg = pdev->dev.platform_data; int ret; if (p) { - pr_info("sh_tmu: %s kept as earlytimer\n", cfg->name); + dev_info(&pdev->dev, "kept as earlytimer\n"); return 0; } diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 75d293eeb3ee..063b2184caf5 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -662,32 +662,20 @@ static ssize_t show_bios_limit(struct cpufreq_policy *policy, char *buf) return sprintf(buf, "%u\n", policy->cpuinfo.max_freq); } -#define define_one_ro(_name) \ -static struct freq_attr _name = \ -__ATTR(_name, 0444, show_##_name, NULL) - -#define define_one_ro0400(_name) \ -static struct freq_attr _name = \ -__ATTR(_name, 0400, show_##_name, NULL) - -#define define_one_rw(_name) \ -static struct freq_attr _name = \ -__ATTR(_name, 0644, show_##_name, store_##_name) - -define_one_ro0400(cpuinfo_cur_freq); -define_one_ro(cpuinfo_min_freq); -define_one_ro(cpuinfo_max_freq); -define_one_ro(cpuinfo_transition_latency); -define_one_ro(scaling_available_governors); -define_one_ro(scaling_driver); -define_one_ro(scaling_cur_freq); -define_one_ro(bios_limit); -define_one_ro(related_cpus); -define_one_ro(affected_cpus); -define_one_rw(scaling_min_freq); -define_one_rw(scaling_max_freq); -define_one_rw(scaling_governor); -define_one_rw(scaling_setspeed); +cpufreq_freq_attr_ro_perm(cpuinfo_cur_freq, 0400); +cpufreq_freq_attr_ro(cpuinfo_min_freq); +cpufreq_freq_attr_ro(cpuinfo_max_freq); +cpufreq_freq_attr_ro(cpuinfo_transition_latency); +cpufreq_freq_attr_ro(scaling_available_governors); +cpufreq_freq_attr_ro(scaling_driver); +cpufreq_freq_attr_ro(scaling_cur_freq); +cpufreq_freq_attr_ro(bios_limit); +cpufreq_freq_attr_ro(related_cpus); +cpufreq_freq_attr_ro(affected_cpus); +cpufreq_freq_attr_rw(scaling_min_freq); +cpufreq_freq_attr_rw(scaling_max_freq); +cpufreq_freq_attr_rw(scaling_governor); +cpufreq_freq_attr_rw(scaling_setspeed); static struct attribute *default_attrs[] = { &cpuinfo_min_freq.attr, diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index 3a147874a465..526bfbf69611 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -178,12 +178,8 @@ static ssize_t show_sampling_rate_min(struct kobject *kobj, return sprintf(buf, "%u\n", min_sampling_rate); } -#define define_one_ro(_name) \ -static struct global_attr _name = \ -__ATTR(_name, 0444, show_##_name, NULL) - -define_one_ro(sampling_rate_max); -define_one_ro(sampling_rate_min); +define_one_global_ro(sampling_rate_max); +define_one_global_ro(sampling_rate_min); /* cpufreq_conservative Governor Tunables */ #define show_one(file_name, object) \ @@ -221,12 +217,8 @@ show_one_old(freq_step); show_one_old(sampling_rate_min); show_one_old(sampling_rate_max); -#define define_one_ro_old(object, _name) \ -static struct freq_attr object = \ -__ATTR(_name, 0444, show_##_name##_old, NULL) - -define_one_ro_old(sampling_rate_min_old, sampling_rate_min); -define_one_ro_old(sampling_rate_max_old, sampling_rate_max); +cpufreq_freq_attr_ro_old(sampling_rate_min); +cpufreq_freq_attr_ro_old(sampling_rate_max); /*** delete after deprecation time ***/ @@ -364,16 +356,12 @@ static ssize_t store_freq_step(struct kobject *a, struct attribute *b, return count; } -#define define_one_rw(_name) \ -static struct global_attr _name = \ -__ATTR(_name, 0644, show_##_name, store_##_name) - -define_one_rw(sampling_rate); -define_one_rw(sampling_down_factor); -define_one_rw(up_threshold); -define_one_rw(down_threshold); -define_one_rw(ignore_nice_load); -define_one_rw(freq_step); +define_one_global_rw(sampling_rate); +define_one_global_rw(sampling_down_factor); +define_one_global_rw(up_threshold); +define_one_global_rw(down_threshold); +define_one_global_rw(ignore_nice_load); +define_one_global_rw(freq_step); static struct attribute *dbs_attributes[] = { &sampling_rate_max.attr, @@ -409,16 +397,12 @@ write_one_old(down_threshold); write_one_old(ignore_nice_load); write_one_old(freq_step); -#define define_one_rw_old(object, _name) \ -static struct freq_attr object = \ -__ATTR(_name, 0644, show_##_name##_old, store_##_name##_old) - -define_one_rw_old(sampling_rate_old, sampling_rate); -define_one_rw_old(sampling_down_factor_old, sampling_down_factor); -define_one_rw_old(up_threshold_old, up_threshold); -define_one_rw_old(down_threshold_old, down_threshold); -define_one_rw_old(ignore_nice_load_old, ignore_nice_load); -define_one_rw_old(freq_step_old, freq_step); +cpufreq_freq_attr_rw_old(sampling_rate); +cpufreq_freq_attr_rw_old(sampling_down_factor); +cpufreq_freq_attr_rw_old(up_threshold); +cpufreq_freq_attr_rw_old(down_threshold); +cpufreq_freq_attr_rw_old(ignore_nice_load); +cpufreq_freq_attr_rw_old(freq_step); static struct attribute *dbs_attributes_old[] = { &sampling_rate_max_old.attr, diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c index bd444dc93cf2..e1314212d8d4 100644 --- a/drivers/cpufreq/cpufreq_ondemand.c +++ b/drivers/cpufreq/cpufreq_ondemand.c @@ -73,6 +73,7 @@ enum {DBS_NORMAL_SAMPLE, DBS_SUB_SAMPLE}; struct cpu_dbs_info_s { cputime64_t prev_cpu_idle; + cputime64_t prev_cpu_iowait; cputime64_t prev_cpu_wall; cputime64_t prev_cpu_nice; struct cpufreq_policy *cur_policy; @@ -108,6 +109,7 @@ static struct dbs_tuners { unsigned int down_differential; unsigned int ignore_nice; unsigned int powersave_bias; + unsigned int io_is_busy; } dbs_tuners_ins = { .up_threshold = DEF_FREQUENCY_UP_THRESHOLD, .down_differential = DEF_FREQUENCY_DOWN_DIFFERENTIAL, @@ -148,6 +150,16 @@ static inline cputime64_t get_cpu_idle_time(unsigned int cpu, cputime64_t *wall) return idle_time; } +static inline cputime64_t get_cpu_iowait_time(unsigned int cpu, cputime64_t *wall) +{ + u64 iowait_time = get_cpu_iowait_time_us(cpu, wall); + + if (iowait_time == -1ULL) + return 0; + + return iowait_time; +} + /* * Find right freq to be set now with powersave_bias on. * Returns the freq_hi to be used right now and will set freq_hi_jiffies, @@ -234,12 +246,8 @@ static ssize_t show_sampling_rate_min(struct kobject *kobj, return sprintf(buf, "%u\n", min_sampling_rate); } -#define define_one_ro(_name) \ -static struct global_attr _name = \ -__ATTR(_name, 0444, show_##_name, NULL) - -define_one_ro(sampling_rate_max); -define_one_ro(sampling_rate_min); +define_one_global_ro(sampling_rate_max); +define_one_global_ro(sampling_rate_min); /* cpufreq_ondemand Governor Tunables */ #define show_one(file_name, object) \ @@ -249,6 +257,7 @@ static ssize_t show_##file_name \ return sprintf(buf, "%u\n", dbs_tuners_ins.object); \ } show_one(sampling_rate, sampling_rate); +show_one(io_is_busy, io_is_busy); show_one(up_threshold, up_threshold); show_one(ignore_nice_load, ignore_nice); show_one(powersave_bias, powersave_bias); @@ -274,12 +283,8 @@ show_one_old(powersave_bias); show_one_old(sampling_rate_min); show_one_old(sampling_rate_max); -#define define_one_ro_old(object, _name) \ -static struct freq_attr object = \ -__ATTR(_name, 0444, show_##_name##_old, NULL) - -define_one_ro_old(sampling_rate_min_old, sampling_rate_min); -define_one_ro_old(sampling_rate_max_old, sampling_rate_max); +cpufreq_freq_attr_ro_old(sampling_rate_min); +cpufreq_freq_attr_ro_old(sampling_rate_max); /*** delete after deprecation time ***/ @@ -299,6 +304,23 @@ static ssize_t store_sampling_rate(struct kobject *a, struct attribute *b, return count; } +static ssize_t store_io_is_busy(struct kobject *a, struct attribute *b, + const char *buf, size_t count) +{ + unsigned int input; + int ret; + + ret = sscanf(buf, "%u", &input); + if (ret != 1) + return -EINVAL; + + mutex_lock(&dbs_mutex); + dbs_tuners_ins.io_is_busy = !!input; + mutex_unlock(&dbs_mutex); + + return count; +} + static ssize_t store_up_threshold(struct kobject *a, struct attribute *b, const char *buf, size_t count) { @@ -376,14 +398,11 @@ static ssize_t store_powersave_bias(struct kobject *a, struct attribute *b, return count; } -#define define_one_rw(_name) \ -static struct global_attr _name = \ -__ATTR(_name, 0644, show_##_name, store_##_name) - -define_one_rw(sampling_rate); -define_one_rw(up_threshold); -define_one_rw(ignore_nice_load); -define_one_rw(powersave_bias); +define_one_global_rw(sampling_rate); +define_one_global_rw(io_is_busy); +define_one_global_rw(up_threshold); +define_one_global_rw(ignore_nice_load); +define_one_global_rw(powersave_bias); static struct attribute *dbs_attributes[] = { &sampling_rate_max.attr, @@ -392,6 +411,7 @@ static struct attribute *dbs_attributes[] = { &up_threshold.attr, &ignore_nice_load.attr, &powersave_bias.attr, + &io_is_busy.attr, NULL }; @@ -415,14 +435,10 @@ write_one_old(up_threshold); write_one_old(ignore_nice_load); write_one_old(powersave_bias); -#define define_one_rw_old(object, _name) \ -static struct freq_attr object = \ -__ATTR(_name, 0644, show_##_name##_old, store_##_name##_old) - -define_one_rw_old(sampling_rate_old, sampling_rate); -define_one_rw_old(up_threshold_old, up_threshold); -define_one_rw_old(ignore_nice_load_old, ignore_nice_load); -define_one_rw_old(powersave_bias_old, powersave_bias); +cpufreq_freq_attr_rw_old(sampling_rate); +cpufreq_freq_attr_rw_old(up_threshold); +cpufreq_freq_attr_rw_old(ignore_nice_load); +cpufreq_freq_attr_rw_old(powersave_bias); static struct attribute *dbs_attributes_old[] = { &sampling_rate_max_old.attr, @@ -470,14 +486,15 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) for_each_cpu(j, policy->cpus) { struct cpu_dbs_info_s *j_dbs_info; - cputime64_t cur_wall_time, cur_idle_time; - unsigned int idle_time, wall_time; + cputime64_t cur_wall_time, cur_idle_time, cur_iowait_time; + unsigned int idle_time, wall_time, iowait_time; unsigned int load, load_freq; int freq_avg; j_dbs_info = &per_cpu(od_cpu_dbs_info, j); cur_idle_time = get_cpu_idle_time(j, &cur_wall_time); + cur_iowait_time = get_cpu_iowait_time(j, &cur_wall_time); wall_time = (unsigned int) cputime64_sub(cur_wall_time, j_dbs_info->prev_cpu_wall); @@ -487,6 +504,10 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) j_dbs_info->prev_cpu_idle); j_dbs_info->prev_cpu_idle = cur_idle_time; + iowait_time = (unsigned int) cputime64_sub(cur_iowait_time, + j_dbs_info->prev_cpu_iowait); + j_dbs_info->prev_cpu_iowait = cur_iowait_time; + if (dbs_tuners_ins.ignore_nice) { cputime64_t cur_nice; unsigned long cur_nice_jiffies; @@ -504,6 +525,16 @@ static void dbs_check_cpu(struct cpu_dbs_info_s *this_dbs_info) idle_time += jiffies_to_usecs(cur_nice_jiffies); } + /* + * For the purpose of ondemand, waiting for disk IO is an + * indication that you're performance critical, and not that + * the system is actually idle. So subtract the iowait time + * from the cpu idle time. + */ + + if (dbs_tuners_ins.io_is_busy && idle_time >= iowait_time) + idle_time -= iowait_time; + if (unlikely(!wall_time || wall_time < idle_time)) continue; @@ -617,6 +648,29 @@ static inline void dbs_timer_exit(struct cpu_dbs_info_s *dbs_info) cancel_delayed_work_sync(&dbs_info->work); } +/* + * Not all CPUs want IO time to be accounted as busy; this dependson how + * efficient idling at a higher frequency/voltage is. + * Pavel Machek says this is not so for various generations of AMD and old + * Intel systems. + * Mike Chan (androidlcom) calis this is also not true for ARM. + * Because of this, whitelist specific known (series) of CPUs by default, and + * leave all others up to the user. + */ +static int should_io_be_busy(void) +{ +#if defined(CONFIG_X86) + /* + * For Intel, Core 2 (model 15) andl later have an efficient idle. + */ + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && + boot_cpu_data.x86 == 6 && + boot_cpu_data.x86_model >= 15) + return 1; +#endif + return 0; +} + static int cpufreq_governor_dbs(struct cpufreq_policy *policy, unsigned int event) { @@ -679,6 +733,7 @@ static int cpufreq_governor_dbs(struct cpufreq_policy *policy, dbs_tuners_ins.sampling_rate = max(min_sampling_rate, latency * LATENCY_MULTIPLIER); + dbs_tuners_ins.io_is_busy = should_io_be_busy(); } mutex_unlock(&dbs_mutex); diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c index 1c1ceb4f218f..12c98900dcf8 100644 --- a/drivers/cpuidle/governors/ladder.c +++ b/drivers/cpuidle/governors/ladder.c @@ -67,7 +67,7 @@ static int ladder_select_state(struct cpuidle_device *dev) struct ladder_device *ldev = &__get_cpu_var(ladder_devices); struct ladder_device_state *last_state; int last_residency, last_idx = ldev->last_state_idx; - int latency_req = pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY); + int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); /* Special case when user has set very strict latency requirement */ if (unlikely(latency_req == 0)) { diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index f8e57c6303f2..b81ad9c731ae 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -182,7 +182,7 @@ static u64 div_round64(u64 dividend, u32 divisor) static int menu_select(struct cpuidle_device *dev) { struct menu_device *data = &__get_cpu_var(menu_devices); - int latency_req = pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY); + int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); int i; int multiplier; diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c index 6f25a20de99f..323afef77802 100644 --- a/drivers/dma/shdma.c +++ b/drivers/dma/shdma.c @@ -26,8 +26,7 @@ #include <linux/dma-mapping.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> - -#include <asm/dmaengine.h> +#include <linux/sh_dma.h> #include "shdma.h" @@ -45,7 +44,7 @@ enum sh_dmae_desc_status { #define LOG2_DEFAULT_XFER_SIZE 2 /* A bitmask with bits enough for enum sh_dmae_slave_chan_id */ -static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SHDMA_SLAVE_NUMBER)]; +static unsigned long sh_dmae_slave_used[BITS_TO_LONGS(SH_DMA_SLAVE_NUMBER)]; static void sh_dmae_chan_ld_cleanup(struct sh_dmae_chan *sh_chan, bool all); @@ -190,7 +189,7 @@ static int dmae_set_dmars(struct sh_dmae_chan *sh_chan, u16 val) struct sh_dmae_device *shdev = container_of(sh_chan->common.device, struct sh_dmae_device, common); struct sh_dmae_pdata *pdata = shdev->pdata; - struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id]; + const struct sh_dmae_channel *chan_pdata = &pdata->channel[sh_chan->id]; u16 __iomem *addr = shdev->dmars + chan_pdata->dmars / sizeof(u16); int shift = chan_pdata->dmars_bit; @@ -266,8 +265,8 @@ static struct sh_desc *sh_dmae_get_desc(struct sh_dmae_chan *sh_chan) return NULL; } -static struct sh_dmae_slave_config *sh_dmae_find_slave( - struct sh_dmae_chan *sh_chan, enum sh_dmae_slave_chan_id slave_id) +static const struct sh_dmae_slave_config *sh_dmae_find_slave( + struct sh_dmae_chan *sh_chan, struct sh_dmae_slave *param) { struct dma_device *dma_dev = sh_chan->common.device; struct sh_dmae_device *shdev = container_of(dma_dev, @@ -275,11 +274,11 @@ static struct sh_dmae_slave_config *sh_dmae_find_slave( struct sh_dmae_pdata *pdata = shdev->pdata; int i; - if ((unsigned)slave_id >= SHDMA_SLAVE_NUMBER) + if (param->slave_id >= SH_DMA_SLAVE_NUMBER) return NULL; for (i = 0; i < pdata->slave_num; i++) - if (pdata->slave[i].slave_id == slave_id) + if (pdata->slave[i].slave_id == param->slave_id) return pdata->slave + i; return NULL; @@ -299,9 +298,9 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan) * never runs concurrently with itself or free_chan_resources. */ if (param) { - struct sh_dmae_slave_config *cfg; + const struct sh_dmae_slave_config *cfg; - cfg = sh_dmae_find_slave(sh_chan, param->slave_id); + cfg = sh_dmae_find_slave(sh_chan, param); if (!cfg) { ret = -EINVAL; goto efindslave; @@ -574,12 +573,14 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg( { struct sh_dmae_slave *param; struct sh_dmae_chan *sh_chan; + dma_addr_t slave_addr; if (!chan) return NULL; sh_chan = to_sh_chan(chan); param = chan->private; + slave_addr = param->config->addr; /* Someone calling slave DMA on a public channel? */ if (!param || !sg_len) { @@ -592,7 +593,7 @@ static struct dma_async_tx_descriptor *sh_dmae_prep_slave_sg( * if (param != NULL), this is a successfully requested slave channel, * therefore param->config != NULL too. */ - return sh_dmae_prep_sg(sh_chan, sgl, sg_len, ¶m->config->addr, + return sh_dmae_prep_sg(sh_chan, sgl, sg_len, &slave_addr, direction, flags); } @@ -873,7 +874,7 @@ static int __devinit sh_dmae_chan_probe(struct sh_dmae_device *shdev, int id, int irq, unsigned long flags) { int err; - struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id]; + const struct sh_dmae_channel *chan_pdata = &shdev->pdata->channel[id]; struct platform_device *pdev = to_platform_device(shdev->common.dev); struct sh_dmae_chan *new_sh_chan; diff --git a/drivers/dma/shdma.h b/drivers/dma/shdma.h index 153609a1e96c..4021275a0a43 100644 --- a/drivers/dma/shdma.h +++ b/drivers/dma/shdma.h @@ -17,8 +17,8 @@ #include <linux/interrupt.h> #include <linux/list.h> -#include <asm/dmaengine.h> - +#define SH_DMAC_MAX_CHANNELS 6 +#define SH_DMA_SLAVE_NUMBER 256 #define SH_DMA_TCR_MAX 0x00FFFFFF /* 16MB */ struct device; diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 94b16e0340ae..a3b083a7403a 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -1351,7 +1351,7 @@ static void bus_reset_tasklet(unsigned long data) * was set up before this reset, the old one is now no longer * in use and we can free it. Update the config rom pointers * to point to the current config rom and clear the - * next_config_rom pointer so a new udpate can take place. + * next_config_rom pointer so a new update can take place. */ if (ohci->next_config_rom != NULL) { diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index f7ba82ebf65a..2092e7bb788f 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -961,7 +961,7 @@ int drm_addbufs_pci(struct drm_device * dev, struct drm_buf_desc * request) dma->buflist[i + dma->buf_count] = &entry->buflist[i]; } - /* No allocations failed, so now we can replace the orginal pagelist + /* No allocations failed, so now we can replace the original pagelist * with the new one. */ if (dma->page_count) { diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index c7502b6b1600..f27e3703a716 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -905,9 +905,9 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, memset(best_clock, 0, sizeof(*best_clock)); max_n = limit->n.max; - /* based on hardware requriment prefer smaller n to precision */ + /* based on hardware requirement, prefer smaller n to precision */ for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { - /* based on hardware requirment prefere larger m1,m2 */ + /* based on hardware requirement, prefere larger m1,m2 */ for (clock.m1 = limit->m1.max; clock.m1 >= limit->m1.min; clock.m1--) { for (clock.m2 = limit->m2.max; diff --git a/drivers/gpu/drm/radeon/atombios.h b/drivers/gpu/drm/radeon/atombios.h index 27e2c715be11..5319d9e2f7ba 100644 --- a/drivers/gpu/drm/radeon/atombios.h +++ b/drivers/gpu/drm/radeon/atombios.h @@ -3780,7 +3780,7 @@ typedef struct _ATOM_ASIC_SS_ASSIGNMENT UCHAR ucReserved[2]; }ATOM_ASIC_SS_ASSIGNMENT; -//Define ucClockIndication, SW uses the IDs below to search if the SS is requried/enabled on a clock branch/signal type. +//Define ucClockIndication, SW uses the IDs below to search if the SS is required/enabled on a clock branch/signal type. //SS is not required or enabled if a match is not found. #define ASIC_INTERNAL_MEMORY_SS 1 #define ASIC_INTERNAL_ENGINE_SS 2 @@ -5895,7 +5895,7 @@ typedef struct _ATOM_PPLIB_RS780_CLOCK_INFO UCHAR ucPadding; // For proper alignment and size. USHORT usVDDC; // For the 780, use: None, Low, High, Variable UCHAR ucMaxHTLinkWidth; // From SBIOS - {2, 4, 8, 16} - UCHAR ucMinHTLinkWidth; // From SBIOS - {2, 4, 8, 16}. Effective only if CDLW enabled. Minimum down stream width could be bigger as display BW requriement. + UCHAR ucMinHTLinkWidth; // From SBIOS - {2, 4, 8, 16}. Effective only if CDLW enabled. Minimum down stream width could be bigger as display BW requirement. USHORT usHTLinkFreq; // See definition ATOM_PPLIB_RS780_HTLINKFREQ_xxx or in MHz(>=200). ULONG ulFlags; } ATOM_PPLIB_RS780_CLOCK_INFO; diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 9c6170cd9aac..87ab0568bb0e 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -564,7 +564,7 @@ config I2C_STU300 config I2C_VERSATILE tristate "ARM Versatile/Realview I2C bus support" - depends on ARCH_VERSATILE || ARCH_REALVIEW + depends on ARCH_VERSATILE || ARCH_REALVIEW || ARCH_VEXPRESS select I2C_ALGOBIT help Say yes if you want to support the I2C serial bus on ARMs Versatile diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index c2258a51fe0c..7c469a62c3c1 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -159,107 +159,131 @@ static void i2c_device_shutdown(struct device *dev) driver->shutdown(client); } -#ifdef CONFIG_SUSPEND -static int i2c_device_pm_suspend(struct device *dev) +#ifdef CONFIG_PM_SLEEP +static int i2c_legacy_suspend(struct device *dev, pm_message_t mesg) { - const struct dev_pm_ops *pm; + struct i2c_client *client = i2c_verify_client(dev); + struct i2c_driver *driver; - if (!dev->driver) + if (!client || !dev->driver) return 0; - pm = dev->driver->pm; - if (!pm || !pm->suspend) + driver = to_i2c_driver(dev->driver); + if (!driver->suspend) return 0; - return pm->suspend(dev); + return driver->suspend(client, mesg); } -static int i2c_device_pm_resume(struct device *dev) +static int i2c_legacy_resume(struct device *dev) { - const struct dev_pm_ops *pm; + struct i2c_client *client = i2c_verify_client(dev); + struct i2c_driver *driver; - if (!dev->driver) + if (!client || !dev->driver) return 0; - pm = dev->driver->pm; - if (!pm || !pm->resume) + driver = to_i2c_driver(dev->driver); + if (!driver->resume) return 0; - return pm->resume(dev); + return driver->resume(client); } -#else -#define i2c_device_pm_suspend NULL -#define i2c_device_pm_resume NULL -#endif -#ifdef CONFIG_PM_RUNTIME -static int i2c_device_runtime_suspend(struct device *dev) +static int i2c_device_pm_suspend(struct device *dev) { - const struct dev_pm_ops *pm; + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; - if (!dev->driver) - return 0; - pm = dev->driver->pm; - if (!pm || !pm->runtime_suspend) + if (pm_runtime_suspended(dev)) return 0; - return pm->runtime_suspend(dev); -} -static int i2c_device_runtime_resume(struct device *dev) -{ - const struct dev_pm_ops *pm; + if (pm) + return pm->suspend ? pm->suspend(dev) : 0; - if (!dev->driver) - return 0; - pm = dev->driver->pm; - if (!pm || !pm->runtime_resume) - return 0; - return pm->runtime_resume(dev); + return i2c_legacy_suspend(dev, PMSG_SUSPEND); } -static int i2c_device_runtime_idle(struct device *dev) +static int i2c_device_pm_resume(struct device *dev) { - const struct dev_pm_ops *pm = NULL; + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; int ret; - if (dev->driver) - pm = dev->driver->pm; - if (pm && pm->runtime_idle) { - ret = pm->runtime_idle(dev); - if (ret) - return ret; + if (pm) + ret = pm->resume ? pm->resume(dev) : 0; + else + ret = i2c_legacy_resume(dev); + + if (!ret) { + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); } - return pm_runtime_suspend(dev); + return ret; } -#else -#define i2c_device_runtime_suspend NULL -#define i2c_device_runtime_resume NULL -#define i2c_device_runtime_idle NULL -#endif -static int i2c_device_suspend(struct device *dev, pm_message_t mesg) +static int i2c_device_pm_freeze(struct device *dev) { - struct i2c_client *client = i2c_verify_client(dev); - struct i2c_driver *driver; + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; - if (!client || !dev->driver) + if (pm_runtime_suspended(dev)) return 0; - driver = to_i2c_driver(dev->driver); - if (!driver->suspend) - return 0; - return driver->suspend(client, mesg); + + if (pm) + return pm->freeze ? pm->freeze(dev) : 0; + + return i2c_legacy_suspend(dev, PMSG_FREEZE); } -static int i2c_device_resume(struct device *dev) +static int i2c_device_pm_thaw(struct device *dev) { - struct i2c_client *client = i2c_verify_client(dev); - struct i2c_driver *driver; + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; - if (!client || !dev->driver) + if (pm_runtime_suspended(dev)) return 0; - driver = to_i2c_driver(dev->driver); - if (!driver->resume) + + if (pm) + return pm->thaw ? pm->thaw(dev) : 0; + + return i2c_legacy_resume(dev); +} + +static int i2c_device_pm_poweroff(struct device *dev) +{ + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; + + if (pm_runtime_suspended(dev)) return 0; - return driver->resume(client); + + if (pm) + return pm->poweroff ? pm->poweroff(dev) : 0; + + return i2c_legacy_suspend(dev, PMSG_HIBERNATE); } +static int i2c_device_pm_restore(struct device *dev) +{ + const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; + int ret; + + if (pm) + ret = pm->restore ? pm->restore(dev) : 0; + else + ret = i2c_legacy_resume(dev); + + if (!ret) { + pm_runtime_disable(dev); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + } + + return ret; +} +#else /* !CONFIG_PM_SLEEP */ +#define i2c_device_pm_suspend NULL +#define i2c_device_pm_resume NULL +#define i2c_device_pm_freeze NULL +#define i2c_device_pm_thaw NULL +#define i2c_device_pm_poweroff NULL +#define i2c_device_pm_restore NULL +#endif /* !CONFIG_PM_SLEEP */ + static void i2c_client_dev_release(struct device *dev) { kfree(to_i2c_client(dev)); @@ -301,9 +325,15 @@ static const struct attribute_group *i2c_dev_attr_groups[] = { static const struct dev_pm_ops i2c_device_pm_ops = { .suspend = i2c_device_pm_suspend, .resume = i2c_device_pm_resume, - .runtime_suspend = i2c_device_runtime_suspend, - .runtime_resume = i2c_device_runtime_resume, - .runtime_idle = i2c_device_runtime_idle, + .freeze = i2c_device_pm_freeze, + .thaw = i2c_device_pm_thaw, + .poweroff = i2c_device_pm_poweroff, + .restore = i2c_device_pm_restore, + SET_RUNTIME_PM_OPS( + pm_generic_runtime_suspend, + pm_generic_runtime_resume, + pm_generic_runtime_idle + ) }; struct bus_type i2c_bus_type = { @@ -312,8 +342,6 @@ struct bus_type i2c_bus_type = { .probe = i2c_device_probe, .remove = i2c_device_remove, .shutdown = i2c_device_shutdown, - .suspend = i2c_device_suspend, - .resume = i2c_device_resume, .pm = &i2c_device_pm_ops, }; EXPORT_SYMBOL_GPL(i2c_bus_type); diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c index b85450865ff0..0b7815d2581c 100644 --- a/drivers/ide/ide-cs.c +++ b/drivers/ide/ide-cs.c @@ -65,8 +65,7 @@ MODULE_LICENSE("Dual MPL/GPL"); typedef struct ide_info_t { struct pcmcia_device *p_dev; struct ide_host *host; - int ndev; - dev_node_t node; + int ndev; } ide_info_t; static void ide_release(struct pcmcia_device *); @@ -102,7 +101,6 @@ static int ide_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; link->io.IOAddrLines = 3; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -285,8 +283,7 @@ static int ide_config(struct pcmcia_device *link) io_base = link->io.BasePort1; ctl_base = stk->ctl_base; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -299,24 +296,21 @@ static int ide_config(struct pcmcia_device *link) if (is_kme) outb(0x81, ctl_base+1); - host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link); + host = idecs_register(io_base, ctl_base, link->irq, link); if (host == NULL && link->io.NumPorts1 == 0x20) { outb(0x02, ctl_base + 0x10); host = idecs_register(io_base + 0x10, ctl_base + 0x10, - link->irq.AssignedIRQ, link); + link->irq, link); } if (host == NULL) goto failed; info->ndev = 1; - sprintf(info->node.dev_name, "hd%c", 'a' + host->ports[0]->index * 2); - info->node.major = host->ports[0]->major; - info->node.minor = 0; info->host = host; - link->dev_node = &info->node; - printk(KERN_INFO "ide-cs: %s: Vpp = %d.%d\n", - info->node.dev_name, link->conf.Vpp / 10, link->conf.Vpp % 10); + dev_info(&link->dev, "ide-cs: hd%c: Vpp = %d.%d\n", + 'a' + host->ports[0]->index * 2, + link->conf.Vpp / 10, link->conf.Vpp % 10); kfree(stk); return 0; diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 975adce5f40c..330d2a423362 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -46,6 +46,7 @@ source "drivers/infiniband/hw/ipath/Kconfig" source "drivers/infiniband/hw/ehca/Kconfig" source "drivers/infiniband/hw/amso1100/Kconfig" source "drivers/infiniband/hw/cxgb3/Kconfig" +source "drivers/infiniband/hw/cxgb4/Kconfig" source "drivers/infiniband/hw/mlx4/Kconfig" source "drivers/infiniband/hw/nes/Kconfig" diff --git a/drivers/infiniband/Makefile b/drivers/infiniband/Makefile index ed35e4496241..0c4e589d746e 100644 --- a/drivers/infiniband/Makefile +++ b/drivers/infiniband/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_INFINIBAND_IPATH) += hw/ipath/ obj-$(CONFIG_INFINIBAND_EHCA) += hw/ehca/ obj-$(CONFIG_INFINIBAND_AMSO1100) += hw/amso1100/ obj-$(CONFIG_INFINIBAND_CXGB3) += hw/cxgb3/ +obj-$(CONFIG_INFINIBAND_CXGB4) += hw/cxgb4/ obj-$(CONFIG_MLX4_INFINIBAND) += hw/mlx4/ obj-$(CONFIG_INFINIBAND_NES) += hw/nes/ obj-$(CONFIG_INFINIBAND_IPOIB) += ulp/ipoib/ diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 6d777069d86d..b930b8110a63 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -79,7 +79,6 @@ static DEFINE_IDR(sdp_ps); static DEFINE_IDR(tcp_ps); static DEFINE_IDR(udp_ps); static DEFINE_IDR(ipoib_ps); -static int next_port; struct cma_device { struct list_head list; @@ -1677,13 +1676,13 @@ int rdma_set_ib_paths(struct rdma_cm_id *id, if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ROUTE_RESOLVED)) return -EINVAL; - id->route.path_rec = kmalloc(sizeof *path_rec * num_paths, GFP_KERNEL); + id->route.path_rec = kmemdup(path_rec, sizeof *path_rec * num_paths, + GFP_KERNEL); if (!id->route.path_rec) { ret = -ENOMEM; goto err; } - memcpy(id->route.path_rec, path_rec, sizeof *path_rec * num_paths); id->route.num_paths = num_paths; return 0; err: @@ -1970,47 +1969,33 @@ err1: static int cma_alloc_any_port(struct idr *ps, struct rdma_id_private *id_priv) { - struct rdma_bind_list *bind_list; - int port, ret, low, high; - - bind_list = kzalloc(sizeof *bind_list, GFP_KERNEL); - if (!bind_list) - return -ENOMEM; - -retry: - /* FIXME: add proper port randomization per like inet_csk_get_port */ - do { - ret = idr_get_new_above(ps, bind_list, next_port, &port); - } while ((ret == -EAGAIN) && idr_pre_get(ps, GFP_KERNEL)); - - if (ret) - goto err1; + static unsigned int last_used_port; + int low, high, remaining; + unsigned int rover; inet_get_local_port_range(&low, &high); - if (port > high) { - if (next_port != low) { - idr_remove(ps, port); - next_port = low; - goto retry; - } - ret = -EADDRNOTAVAIL; - goto err2; + remaining = (high - low) + 1; + rover = net_random() % remaining + low; +retry: + if (last_used_port != rover && + !idr_find(ps, (unsigned short) rover)) { + int ret = cma_alloc_port(ps, id_priv, rover); + /* + * Remember previously used port number in order to avoid + * re-using same port immediately after it is closed. + */ + if (!ret) + last_used_port = rover; + if (ret != -EADDRNOTAVAIL) + return ret; } - - if (port == high) - next_port = low; - else - next_port = port + 1; - - bind_list->ps = ps; - bind_list->port = (unsigned short) port; - cma_bind_port(bind_list, id_priv); - return 0; -err2: - idr_remove(ps, port); -err1: - kfree(bind_list); - return ret; + if (--remaining) { + rover++; + if ((rover < low) || (rover > high)) + rover = low; + goto retry; + } + return -EADDRNOTAVAIL; } static int cma_use_port(struct idr *ps, struct rdma_id_private *id_priv) @@ -2995,12 +2980,7 @@ static void cma_remove_one(struct ib_device *device) static int __init cma_init(void) { - int ret, low, high, remaining; - - get_random_bytes(&next_port, sizeof next_port); - inet_get_local_port_range(&low, &high); - remaining = (high - low) + 1; - next_port = ((unsigned int) next_port % remaining) + low; + int ret; cma_wq = create_singlethread_workqueue("rdma_cm"); if (!cma_wq) diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 1df1194aeba4..6dc7b77d5d29 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -291,13 +291,11 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device, } if (mad_reg_req) { - reg_req = kmalloc(sizeof *reg_req, GFP_KERNEL); + reg_req = kmemdup(mad_reg_req, sizeof *reg_req, GFP_KERNEL); if (!reg_req) { ret = ERR_PTR(-ENOMEM); goto error3; } - /* Make a copy of the MAD registration request */ - memcpy(reg_req, mad_reg_req, sizeof *reg_req); } /* Now, fill in the various structures */ diff --git a/drivers/infiniband/core/ucm.c b/drivers/infiniband/core/ucm.c index 512b1c43460c..46474842cfe9 100644 --- a/drivers/infiniband/core/ucm.c +++ b/drivers/infiniband/core/ucm.c @@ -1181,7 +1181,7 @@ static int ib_ucm_open(struct inode *inode, struct file *filp) file->filp = filp; file->device = container_of(inode->i_cdev, struct ib_ucm_device, cdev); - return 0; + return nonseekable_open(inode, filp); } static int ib_ucm_close(struct inode *inode, struct file *filp) @@ -1229,6 +1229,7 @@ static const struct file_operations ucm_fops = { .release = ib_ucm_close, .write = ib_ucm_write, .poll = ib_ucm_poll, + .llseek = no_llseek, }; static ssize_t show_ibdev(struct device *dev, struct device_attribute *attr, diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 46185084121e..ac7edc24165c 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -1220,7 +1220,8 @@ static int ucma_open(struct inode *inode, struct file *filp) filp->private_data = file; file->filp = filp; - return 0; + + return nonseekable_open(inode, filp); } static int ucma_close(struct inode *inode, struct file *filp) @@ -1250,6 +1251,7 @@ static const struct file_operations ucma_fops = { .release = ucma_close, .write = ucma_write, .poll = ucma_poll, + .llseek = no_llseek, }; static struct miscdevice ucma_misc = { diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index e7db054fb1c8..6babb72b39fc 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -781,7 +781,7 @@ static int ib_umad_open(struct inode *inode, struct file *filp) { struct ib_umad_port *port; struct ib_umad_file *file; - int ret = 0; + int ret; port = container_of(inode->i_cdev, struct ib_umad_port, cdev); if (port) @@ -814,6 +814,8 @@ static int ib_umad_open(struct inode *inode, struct file *filp) list_add_tail(&file->port_list, &port->file_list); + ret = nonseekable_open(inode, filp); + out: mutex_unlock(&port->file_mutex); return ret; @@ -866,7 +868,8 @@ static const struct file_operations umad_fops = { .compat_ioctl = ib_umad_compat_ioctl, #endif .open = ib_umad_open, - .release = ib_umad_close + .release = ib_umad_close, + .llseek = no_llseek, }; static int ib_umad_sm_open(struct inode *inode, struct file *filp) @@ -903,7 +906,7 @@ static int ib_umad_sm_open(struct inode *inode, struct file *filp) filp->private_data = port; - return 0; + return nonseekable_open(inode, filp); fail: kref_put(&port->umad_dev->ref, ib_umad_release_dev); @@ -933,7 +936,8 @@ static int ib_umad_sm_close(struct inode *inode, struct file *filp) static const struct file_operations umad_sm_fops = { .owner = THIS_MODULE, .open = ib_umad_sm_open, - .release = ib_umad_sm_close + .release = ib_umad_sm_close, + .llseek = no_llseek, }; static struct ib_client umad_client = { diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index fb3526254426..ec83e9fe387b 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -369,7 +369,8 @@ static const struct file_operations uverbs_event_fops = { .read = ib_uverbs_event_read, .poll = ib_uverbs_event_poll, .release = ib_uverbs_event_close, - .fasync = ib_uverbs_event_fasync + .fasync = ib_uverbs_event_fasync, + .llseek = no_llseek, }; void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context) @@ -623,7 +624,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp) filp->private_data = file; - return 0; + return nonseekable_open(inode, filp); err_module: module_put(dev->ib_dev->owner); @@ -651,7 +652,8 @@ static const struct file_operations uverbs_fops = { .owner = THIS_MODULE, .write = ib_uverbs_write, .open = ib_uverbs_open, - .release = ib_uverbs_close + .release = ib_uverbs_close, + .llseek = no_llseek, }; static const struct file_operations uverbs_mmap_fops = { @@ -659,7 +661,8 @@ static const struct file_operations uverbs_mmap_fops = { .write = ib_uverbs_write, .mmap = ib_uverbs_mmap, .open = ib_uverbs_open, - .release = ib_uverbs_close + .release = ib_uverbs_close, + .llseek = no_llseek, }; static struct ib_client uverbs_client = { diff --git a/drivers/infiniband/hw/amso1100/c2.h b/drivers/infiniband/hw/amso1100/c2.h index f7ff66f98361..6ae698e68775 100644 --- a/drivers/infiniband/hw/amso1100/c2.h +++ b/drivers/infiniband/hw/amso1100/c2.h @@ -250,7 +250,7 @@ struct c2_array { struct sp_chunk { struct sp_chunk *next; dma_addr_t dma_addr; - DECLARE_PCI_UNMAP_ADDR(mapping); + DEFINE_DMA_UNMAP_ADDR(mapping); u16 head; u16 shared_ptr[0]; }; diff --git a/drivers/infiniband/hw/amso1100/c2_alloc.c b/drivers/infiniband/hw/amso1100/c2_alloc.c index d4f5f5d42e90..78d247ec6961 100644 --- a/drivers/infiniband/hw/amso1100/c2_alloc.c +++ b/drivers/infiniband/hw/amso1100/c2_alloc.c @@ -49,7 +49,7 @@ static int c2_alloc_mqsp_chunk(struct c2_dev *c2dev, gfp_t gfp_mask, return -ENOMEM; new_head->dma_addr = dma_addr; - pci_unmap_addr_set(new_head, mapping, new_head->dma_addr); + dma_unmap_addr_set(new_head, mapping, new_head->dma_addr); new_head->next = NULL; new_head->head = 0; @@ -81,7 +81,7 @@ void c2_free_mqsp_pool(struct c2_dev *c2dev, struct sp_chunk *root) while (root) { next = root->next; dma_free_coherent(&c2dev->pcidev->dev, PAGE_SIZE, root, - pci_unmap_addr(root, mapping)); + dma_unmap_addr(root, mapping)); root = next; } } diff --git a/drivers/infiniband/hw/amso1100/c2_cq.c b/drivers/infiniband/hw/amso1100/c2_cq.c index f7b0fc23f413..49e0e8533f74 100644 --- a/drivers/infiniband/hw/amso1100/c2_cq.c +++ b/drivers/infiniband/hw/amso1100/c2_cq.c @@ -257,7 +257,7 @@ int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags) static void c2_free_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq) { dma_free_coherent(&c2dev->pcidev->dev, mq->q_size * mq->msg_size, - mq->msg_pool.host, pci_unmap_addr(mq, mapping)); + mq->msg_pool.host, dma_unmap_addr(mq, mapping)); } static int c2_alloc_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq, int q_size, @@ -278,7 +278,7 @@ static int c2_alloc_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq, int q_size, NULL, /* peer (currently unknown) */ C2_MQ_HOST_TARGET); - pci_unmap_addr_set(mq, mapping, mq->host_dma); + dma_unmap_addr_set(mq, mapping, mq->host_dma); return 0; } diff --git a/drivers/infiniband/hw/amso1100/c2_mq.h b/drivers/infiniband/hw/amso1100/c2_mq.h index acede007b94a..fc1b9a7cec4b 100644 --- a/drivers/infiniband/hw/amso1100/c2_mq.h +++ b/drivers/infiniband/hw/amso1100/c2_mq.h @@ -71,7 +71,7 @@ struct c2_mq { u8 __iomem *adapter; } msg_pool; dma_addr_t host_dma; - DECLARE_PCI_UNMAP_ADDR(mapping); + DEFINE_DMA_UNMAP_ADDR(mapping); u16 hint_count; u16 priv; struct c2_mq_shared __iomem *peer; diff --git a/drivers/infiniband/hw/amso1100/c2_provider.h b/drivers/infiniband/hw/amso1100/c2_provider.h index 1076df2ee96a..bf189987711f 100644 --- a/drivers/infiniband/hw/amso1100/c2_provider.h +++ b/drivers/infiniband/hw/amso1100/c2_provider.h @@ -50,7 +50,7 @@ struct c2_buf_list { void *buf; - DECLARE_PCI_UNMAP_ADDR(mapping) + DEFINE_DMA_UNMAP_ADDR(mapping); }; diff --git a/drivers/infiniband/hw/amso1100/c2_rnic.c b/drivers/infiniband/hw/amso1100/c2_rnic.c index 78c4bcc6ef60..85cfae4cad71 100644 --- a/drivers/infiniband/hw/amso1100/c2_rnic.c +++ b/drivers/infiniband/hw/amso1100/c2_rnic.c @@ -524,7 +524,7 @@ int __devinit c2_rnic_init(struct c2_dev *c2dev) err = -ENOMEM; goto bail1; } - pci_unmap_addr_set(&c2dev->rep_vq, mapping, c2dev->rep_vq.host_dma); + dma_unmap_addr_set(&c2dev->rep_vq, mapping, c2dev->rep_vq.host_dma); pr_debug("%s rep_vq va %p dma %llx\n", __func__, q1_pages, (unsigned long long) c2dev->rep_vq.host_dma); c2_mq_rep_init(&c2dev->rep_vq, @@ -545,7 +545,7 @@ int __devinit c2_rnic_init(struct c2_dev *c2dev) err = -ENOMEM; goto bail2; } - pci_unmap_addr_set(&c2dev->aeq, mapping, c2dev->aeq.host_dma); + dma_unmap_addr_set(&c2dev->aeq, mapping, c2dev->aeq.host_dma); pr_debug("%s aeq va %p dma %llx\n", __func__, q2_pages, (unsigned long long) c2dev->aeq.host_dma); c2_mq_rep_init(&c2dev->aeq, @@ -596,11 +596,11 @@ int __devinit c2_rnic_init(struct c2_dev *c2dev) bail3: dma_free_coherent(&c2dev->pcidev->dev, c2dev->aeq.q_size * c2dev->aeq.msg_size, - q2_pages, pci_unmap_addr(&c2dev->aeq, mapping)); + q2_pages, dma_unmap_addr(&c2dev->aeq, mapping)); bail2: dma_free_coherent(&c2dev->pcidev->dev, c2dev->rep_vq.q_size * c2dev->rep_vq.msg_size, - q1_pages, pci_unmap_addr(&c2dev->rep_vq, mapping)); + q1_pages, dma_unmap_addr(&c2dev->rep_vq, mapping)); bail1: c2_free_mqsp_pool(c2dev, c2dev->kern_mqsp_pool); bail0: @@ -637,13 +637,13 @@ void __devexit c2_rnic_term(struct c2_dev *c2dev) dma_free_coherent(&c2dev->pcidev->dev, c2dev->aeq.q_size * c2dev->aeq.msg_size, c2dev->aeq.msg_pool.host, - pci_unmap_addr(&c2dev->aeq, mapping)); + dma_unmap_addr(&c2dev->aeq, mapping)); /* Free the verbs reply queue */ dma_free_coherent(&c2dev->pcidev->dev, c2dev->rep_vq.q_size * c2dev->rep_vq.msg_size, c2dev->rep_vq.msg_pool.host, - pci_unmap_addr(&c2dev->rep_vq, mapping)); + dma_unmap_addr(&c2dev->rep_vq, mapping)); /* Free the MQ shared pointer pool */ c2_free_mqsp_pool(c2dev, c2dev->kern_mqsp_pool); diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.c b/drivers/infiniband/hw/cxgb3/cxio_hal.c index 35f286f1ad1e..005b7b52bc1e 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_hal.c +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.c @@ -174,7 +174,7 @@ int cxio_create_cq(struct cxio_rdev *rdev_p, struct t3_cq *cq, int kernel) kfree(cq->sw_queue); return -ENOMEM; } - pci_unmap_addr_set(cq, mapping, cq->dma_addr); + dma_unmap_addr_set(cq, mapping, cq->dma_addr); memset(cq->queue, 0, size); setup.id = cq->cqid; setup.base_addr = (u64) (cq->dma_addr); @@ -297,7 +297,7 @@ int cxio_create_qp(struct cxio_rdev *rdev_p, u32 kernel_domain, goto err4; memset(wq->queue, 0, depth * sizeof(union t3_wr)); - pci_unmap_addr_set(wq, mapping, wq->dma_addr); + dma_unmap_addr_set(wq, mapping, wq->dma_addr); wq->doorbell = (void __iomem *)rdev_p->rnic_info.kdb_addr; if (!kernel_domain) wq->udb = (u64)rdev_p->rnic_info.udbell_physbase + @@ -325,7 +325,7 @@ int cxio_destroy_cq(struct cxio_rdev *rdev_p, struct t3_cq *cq) dma_free_coherent(&(rdev_p->rnic_info.pdev->dev), (1UL << (cq->size_log2)) * sizeof(struct t3_cqe), cq->queue, - pci_unmap_addr(cq, mapping)); + dma_unmap_addr(cq, mapping)); cxio_hal_put_cqid(rdev_p->rscp, cq->cqid); return err; } @@ -336,7 +336,7 @@ int cxio_destroy_qp(struct cxio_rdev *rdev_p, struct t3_wq *wq, dma_free_coherent(&(rdev_p->rnic_info.pdev->dev), (1UL << (wq->size_log2)) * sizeof(union t3_wr), wq->queue, - pci_unmap_addr(wq, mapping)); + dma_unmap_addr(wq, mapping)); kfree(wq->sq); cxio_hal_rqtpool_free(rdev_p, wq->rq_addr, (1UL << wq->rq_size_log2)); kfree(wq->rq); @@ -537,7 +537,7 @@ static int cxio_hal_init_ctrl_qp(struct cxio_rdev *rdev_p) err = -ENOMEM; goto err; } - pci_unmap_addr_set(&rdev_p->ctrl_qp, mapping, + dma_unmap_addr_set(&rdev_p->ctrl_qp, mapping, rdev_p->ctrl_qp.dma_addr); rdev_p->ctrl_qp.doorbell = (void __iomem *)rdev_p->rnic_info.kdb_addr; memset(rdev_p->ctrl_qp.workq, 0, @@ -583,7 +583,7 @@ static int cxio_hal_destroy_ctrl_qp(struct cxio_rdev *rdev_p) dma_free_coherent(&(rdev_p->rnic_info.pdev->dev), (1UL << T3_CTRL_QP_SIZE_LOG2) * sizeof(union t3_wr), rdev_p->ctrl_qp.workq, - pci_unmap_addr(&rdev_p->ctrl_qp, mapping)); + dma_unmap_addr(&rdev_p->ctrl_qp, mapping)); return cxio_hal_clear_qp_ctx(rdev_p, T3_CTRL_QP_ID); } diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h b/drivers/infiniband/hw/cxgb3/cxio_hal.h index 073373c2c560..8f0caf7d4482 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_hal.h +++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h @@ -71,7 +71,7 @@ struct cxio_hal_ctrl_qp { wait_queue_head_t waitq;/* wait for RspQ/CQE msg */ union t3_wr *workq; /* the work request queue */ dma_addr_t dma_addr; /* pci bus address of the workq */ - DECLARE_PCI_UNMAP_ADDR(mapping) + DEFINE_DMA_UNMAP_ADDR(mapping); void __iomem *doorbell; }; diff --git a/drivers/infiniband/hw/cxgb3/cxio_wr.h b/drivers/infiniband/hw/cxgb3/cxio_wr.h index 15073b2da1c5..e5ddb63e7d23 100644 --- a/drivers/infiniband/hw/cxgb3/cxio_wr.h +++ b/drivers/infiniband/hw/cxgb3/cxio_wr.h @@ -691,7 +691,7 @@ struct t3_swrq { struct t3_wq { union t3_wr *queue; /* DMA accessable memory */ dma_addr_t dma_addr; /* DMA address for HW */ - DECLARE_PCI_UNMAP_ADDR(mapping) /* unmap kruft */ + DEFINE_DMA_UNMAP_ADDR(mapping); /* unmap kruft */ u32 error; /* 1 once we go to ERROR */ u32 qpid; u32 wptr; /* idx to next available WR slot */ @@ -718,7 +718,7 @@ struct t3_cq { u32 wptr; u32 size_log2; dma_addr_t dma_addr; - DECLARE_PCI_UNMAP_ADDR(mapping) + DEFINE_DMA_UNMAP_ADDR(mapping); struct t3_cqe *queue; struct t3_cqe *sw_queue; u32 sw_rptr; diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c index 63f975f3e30f..8e77dc543dd1 100644 --- a/drivers/infiniband/hw/cxgb3/iwch.c +++ b/drivers/infiniband/hw/cxgb3/iwch.c @@ -47,8 +47,6 @@ MODULE_DESCRIPTION("Chelsio T3 RDMA Driver"); MODULE_LICENSE("Dual BSD/GPL"); MODULE_VERSION(DRV_VERSION); -cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS]; - static void open_rnic_dev(struct t3cdev *); static void close_rnic_dev(struct t3cdev *); static void iwch_event_handler(struct t3cdev *, u32, u32); diff --git a/drivers/infiniband/hw/cxgb3/iwch_cm.c b/drivers/infiniband/hw/cxgb3/iwch_cm.c index 4fef03296276..ebfb117ba68b 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cm.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cm.c @@ -102,12 +102,9 @@ static unsigned int cong_flavor = 1; module_param(cong_flavor, uint, 0644); MODULE_PARM_DESC(cong_flavor, "TCP Congestion control flavor (default=1)"); -static void process_work(struct work_struct *work); static struct workqueue_struct *workq; -static DECLARE_WORK(skb_work, process_work); static struct sk_buff_head rxq; -static cxgb3_cpl_handler_func work_handlers[NUM_CPL_CMDS]; static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp); static void ep_timeout(unsigned long arg); @@ -151,7 +148,7 @@ int iwch_l2t_send(struct t3cdev *tdev, struct sk_buff *skb, struct l2t_entry *l2 return -EIO; } error = l2t_send(tdev, skb, l2e); - if (error) + if (error < 0) kfree_skb(skb); return error; } @@ -167,7 +164,7 @@ int iwch_cxgb3_ofld_send(struct t3cdev *tdev, struct sk_buff *skb) return -EIO; } error = cxgb3_ofld_send(tdev, skb); - if (error) + if (error < 0) kfree_skb(skb); return error; } @@ -302,27 +299,6 @@ static void release_ep_resources(struct iwch_ep *ep) put_ep(&ep->com); } -static void process_work(struct work_struct *work) -{ - struct sk_buff *skb = NULL; - void *ep; - struct t3cdev *tdev; - int ret; - - while ((skb = skb_dequeue(&rxq))) { - ep = *((void **) (skb->cb)); - tdev = *((struct t3cdev **) (skb->cb + sizeof(void *))); - ret = work_handlers[G_OPCODE(ntohl((__force __be32)skb->csum))](tdev, skb, ep); - if (ret & CPL_RET_BUF_DONE) - kfree_skb(skb); - - /* - * ep was referenced in sched(), and is freed here. - */ - put_ep((struct iwch_ep_common *)ep); - } -} - static int status2errno(int status) { switch (status) { @@ -2157,7 +2133,49 @@ int iwch_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new, /* * All the CM events are handled on a work queue to have a safe context. + * These are the real handlers that are called from the work queue. */ +static const cxgb3_cpl_handler_func work_handlers[NUM_CPL_CMDS] = { + [CPL_ACT_ESTABLISH] = act_establish, + [CPL_ACT_OPEN_RPL] = act_open_rpl, + [CPL_RX_DATA] = rx_data, + [CPL_TX_DMA_ACK] = tx_ack, + [CPL_ABORT_RPL_RSS] = abort_rpl, + [CPL_ABORT_RPL] = abort_rpl, + [CPL_PASS_OPEN_RPL] = pass_open_rpl, + [CPL_CLOSE_LISTSRV_RPL] = close_listsrv_rpl, + [CPL_PASS_ACCEPT_REQ] = pass_accept_req, + [CPL_PASS_ESTABLISH] = pass_establish, + [CPL_PEER_CLOSE] = peer_close, + [CPL_ABORT_REQ_RSS] = peer_abort, + [CPL_CLOSE_CON_RPL] = close_con_rpl, + [CPL_RDMA_TERMINATE] = terminate, + [CPL_RDMA_EC_STATUS] = ec_status, +}; + +static void process_work(struct work_struct *work) +{ + struct sk_buff *skb = NULL; + void *ep; + struct t3cdev *tdev; + int ret; + + while ((skb = skb_dequeue(&rxq))) { + ep = *((void **) (skb->cb)); + tdev = *((struct t3cdev **) (skb->cb + sizeof(void *))); + ret = work_handlers[G_OPCODE(ntohl((__force __be32)skb->csum))](tdev, skb, ep); + if (ret & CPL_RET_BUF_DONE) + kfree_skb(skb); + + /* + * ep was referenced in sched(), and is freed here. + */ + put_ep((struct iwch_ep_common *)ep); + } +} + +static DECLARE_WORK(skb_work, process_work); + static int sched(struct t3cdev *tdev, struct sk_buff *skb, void *ctx) { struct iwch_ep_common *epc = ctx; @@ -2189,6 +2207,29 @@ static int set_tcb_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx) return CPL_RET_BUF_DONE; } +/* + * All upcalls from the T3 Core go to sched() to schedule the + * processing on a work queue. + */ +cxgb3_cpl_handler_func t3c_handlers[NUM_CPL_CMDS] = { + [CPL_ACT_ESTABLISH] = sched, + [CPL_ACT_OPEN_RPL] = sched, + [CPL_RX_DATA] = sched, + [CPL_TX_DMA_ACK] = sched, + [CPL_ABORT_RPL_RSS] = sched, + [CPL_ABORT_RPL] = sched, + [CPL_PASS_OPEN_RPL] = sched, + [CPL_CLOSE_LISTSRV_RPL] = sched, + [CPL_PASS_ACCEPT_REQ] = sched, + [CPL_PASS_ESTABLISH] = sched, + [CPL_PEER_CLOSE] = sched, + [CPL_CLOSE_CON_RPL] = sched, + [CPL_ABORT_REQ_RSS] = sched, + [CPL_RDMA_TERMINATE] = sched, + [CPL_RDMA_EC_STATUS] = sched, + [CPL_SET_TCB_RPL] = set_tcb_rpl, +}; + int __init iwch_cm_init(void) { skb_queue_head_init(&rxq); @@ -2197,46 +2238,6 @@ int __init iwch_cm_init(void) if (!workq) return -ENOMEM; - /* - * All upcalls from the T3 Core go to sched() to - * schedule the processing on a work queue. - */ - t3c_handlers[CPL_ACT_ESTABLISH] = sched; - t3c_handlers[CPL_ACT_OPEN_RPL] = sched; - t3c_handlers[CPL_RX_DATA] = sched; - t3c_handlers[CPL_TX_DMA_ACK] = sched; - t3c_handlers[CPL_ABORT_RPL_RSS] = sched; - t3c_handlers[CPL_ABORT_RPL] = sched; - t3c_handlers[CPL_PASS_OPEN_RPL] = sched; - t3c_handlers[CPL_CLOSE_LISTSRV_RPL] = sched; - t3c_handlers[CPL_PASS_ACCEPT_REQ] = sched; - t3c_handlers[CPL_PASS_ESTABLISH] = sched; - t3c_handlers[CPL_PEER_CLOSE] = sched; - t3c_handlers[CPL_CLOSE_CON_RPL] = sched; - t3c_handlers[CPL_ABORT_REQ_RSS] = sched; - t3c_handlers[CPL_RDMA_TERMINATE] = sched; - t3c_handlers[CPL_RDMA_EC_STATUS] = sched; - t3c_handlers[CPL_SET_TCB_RPL] = set_tcb_rpl; - - /* - * These are the real handlers that are called from a - * work queue. - */ - work_handlers[CPL_ACT_ESTABLISH] = act_establish; - work_handlers[CPL_ACT_OPEN_RPL] = act_open_rpl; - work_handlers[CPL_RX_DATA] = rx_data; - work_handlers[CPL_TX_DMA_ACK] = tx_ack; - work_handlers[CPL_ABORT_RPL_RSS] = abort_rpl; - work_handlers[CPL_ABORT_RPL] = abort_rpl; - work_handlers[CPL_PASS_OPEN_RPL] = pass_open_rpl; - work_handlers[CPL_CLOSE_LISTSRV_RPL] = close_listsrv_rpl; - work_handlers[CPL_PASS_ACCEPT_REQ] = pass_accept_req; - work_handlers[CPL_PASS_ESTABLISH] = pass_establish; - work_handlers[CPL_PEER_CLOSE] = peer_close; - work_handlers[CPL_ABORT_REQ_RSS] = peer_abort; - work_handlers[CPL_CLOSE_CON_RPL] = close_con_rpl; - work_handlers[CPL_RDMA_TERMINATE] = terminate; - work_handlers[CPL_RDMA_EC_STATUS] = ec_status; return 0; } diff --git a/drivers/infiniband/hw/cxgb4/Kconfig b/drivers/infiniband/hw/cxgb4/Kconfig new file mode 100644 index 000000000000..ccb85eaaad75 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/Kconfig @@ -0,0 +1,18 @@ +config INFINIBAND_CXGB4 + tristate "Chelsio T4 RDMA Driver" + depends on CHELSIO_T4 && INET + select GENERIC_ALLOCATOR + ---help--- + This is an iWARP/RDMA driver for the Chelsio T4 1GbE and + 10GbE adapters. + + For general information about Chelsio and our products, visit + our website at <http://www.chelsio.com>. + + For customer support, please visit our customer support page at + <http://www.chelsio.com/support.htm>. + + Please send feedback to <linux-bugs@chelsio.com>. + + To compile this driver as a module, choose M here: the module + will be called iw_cxgb4. diff --git a/drivers/infiniband/hw/cxgb4/Makefile b/drivers/infiniband/hw/cxgb4/Makefile new file mode 100644 index 000000000000..e31a499f0172 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/Makefile @@ -0,0 +1,5 @@ +EXTRA_CFLAGS += -Idrivers/net/cxgb4 + +obj-$(CONFIG_INFINIBAND_CXGB4) += iw_cxgb4.o + +iw_cxgb4-y := device.o cm.o provider.o mem.o cq.o qp.o resource.o ev.o diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c new file mode 100644 index 000000000000..30ce0a8eca09 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -0,0 +1,2374 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/module.h> +#include <linux/list.h> +#include <linux/workqueue.h> +#include <linux/skbuff.h> +#include <linux/timer.h> +#include <linux/notifier.h> +#include <linux/inetdevice.h> +#include <linux/ip.h> +#include <linux/tcp.h> + +#include <net/neighbour.h> +#include <net/netevent.h> +#include <net/route.h> + +#include "iw_cxgb4.h" + +static char *states[] = { + "idle", + "listen", + "connecting", + "mpa_wait_req", + "mpa_req_sent", + "mpa_req_rcvd", + "mpa_rep_sent", + "fpdu_mode", + "aborting", + "closing", + "moribund", + "dead", + NULL, +}; + +int c4iw_max_read_depth = 8; +module_param(c4iw_max_read_depth, int, 0644); +MODULE_PARM_DESC(c4iw_max_read_depth, "Per-connection max ORD/IRD (default=8)"); + +static int enable_tcp_timestamps; +module_param(enable_tcp_timestamps, int, 0644); +MODULE_PARM_DESC(enable_tcp_timestamps, "Enable tcp timestamps (default=0)"); + +static int enable_tcp_sack; +module_param(enable_tcp_sack, int, 0644); +MODULE_PARM_DESC(enable_tcp_sack, "Enable tcp SACK (default=0)"); + +static int enable_tcp_window_scaling = 1; +module_param(enable_tcp_window_scaling, int, 0644); +MODULE_PARM_DESC(enable_tcp_window_scaling, + "Enable tcp window scaling (default=1)"); + +int c4iw_debug; +module_param(c4iw_debug, int, 0644); +MODULE_PARM_DESC(c4iw_debug, "Enable debug logging (default=0)"); + +static int peer2peer; +module_param(peer2peer, int, 0644); +MODULE_PARM_DESC(peer2peer, "Support peer2peer ULPs (default=0)"); + +static int p2p_type = FW_RI_INIT_P2PTYPE_READ_REQ; +module_param(p2p_type, int, 0644); +MODULE_PARM_DESC(p2p_type, "RDMAP opcode to use for the RTR message: " + "1=RDMA_READ 0=RDMA_WRITE (default 1)"); + +static int ep_timeout_secs = 60; +module_param(ep_timeout_secs, int, 0644); +MODULE_PARM_DESC(ep_timeout_secs, "CM Endpoint operation timeout " + "in seconds (default=60)"); + +static int mpa_rev = 1; +module_param(mpa_rev, int, 0644); +MODULE_PARM_DESC(mpa_rev, "MPA Revision, 0 supports amso1100, " + "1 is spec compliant. (default=1)"); + +static int markers_enabled; +module_param(markers_enabled, int, 0644); +MODULE_PARM_DESC(markers_enabled, "Enable MPA MARKERS (default(0)=disabled)"); + +static int crc_enabled = 1; +module_param(crc_enabled, int, 0644); +MODULE_PARM_DESC(crc_enabled, "Enable MPA CRC (default(1)=enabled)"); + +static int rcv_win = 256 * 1024; +module_param(rcv_win, int, 0644); +MODULE_PARM_DESC(rcv_win, "TCP receive window in bytes (default=256KB)"); + +static int snd_win = 32 * 1024; +module_param(snd_win, int, 0644); +MODULE_PARM_DESC(snd_win, "TCP send window in bytes (default=32KB)"); + +static struct workqueue_struct *workq; + +static struct sk_buff_head rxq; + +static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp); +static void ep_timeout(unsigned long arg); +static void connect_reply_upcall(struct c4iw_ep *ep, int status); + +static LIST_HEAD(timeout_list); +static spinlock_t timeout_lock; + +static void start_ep_timer(struct c4iw_ep *ep) +{ + PDBG("%s ep %p\n", __func__, ep); + if (timer_pending(&ep->timer)) { + PDBG("%s stopped / restarted timer ep %p\n", __func__, ep); + del_timer_sync(&ep->timer); + } else + c4iw_get_ep(&ep->com); + ep->timer.expires = jiffies + ep_timeout_secs * HZ; + ep->timer.data = (unsigned long)ep; + ep->timer.function = ep_timeout; + add_timer(&ep->timer); +} + +static void stop_ep_timer(struct c4iw_ep *ep) +{ + PDBG("%s ep %p\n", __func__, ep); + if (!timer_pending(&ep->timer)) { + printk(KERN_ERR "%s timer stopped when its not running! " + "ep %p state %u\n", __func__, ep, ep->com.state); + WARN_ON(1); + return; + } + del_timer_sync(&ep->timer); + c4iw_put_ep(&ep->com); +} + +static int c4iw_l2t_send(struct c4iw_rdev *rdev, struct sk_buff *skb, + struct l2t_entry *l2e) +{ + int error = 0; + + if (c4iw_fatal_error(rdev)) { + kfree_skb(skb); + PDBG("%s - device in error state - dropping\n", __func__); + return -EIO; + } + error = cxgb4_l2t_send(rdev->lldi.ports[0], skb, l2e); + if (error < 0) + kfree_skb(skb); + return error; +} + +int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb) +{ + int error = 0; + + if (c4iw_fatal_error(rdev)) { + kfree_skb(skb); + PDBG("%s - device in error state - dropping\n", __func__); + return -EIO; + } + error = cxgb4_ofld_send(rdev->lldi.ports[0], skb); + if (error < 0) + kfree_skb(skb); + return error; +} + +static void release_tid(struct c4iw_rdev *rdev, u32 hwtid, struct sk_buff *skb) +{ + struct cpl_tid_release *req; + + skb = get_skb(skb, sizeof *req, GFP_KERNEL); + if (!skb) + return; + req = (struct cpl_tid_release *) skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, hwtid); + OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_TID_RELEASE, hwtid)); + set_wr_txq(skb, CPL_PRIORITY_SETUP, 0); + c4iw_ofld_send(rdev, skb); + return; +} + +static void set_emss(struct c4iw_ep *ep, u16 opt) +{ + ep->emss = ep->com.dev->rdev.lldi.mtus[GET_TCPOPT_MSS(opt)] - 40; + ep->mss = ep->emss; + if (GET_TCPOPT_TSTAMP(opt)) + ep->emss -= 12; + if (ep->emss < 128) + ep->emss = 128; + PDBG("%s mss_idx %u mss %u emss=%u\n", __func__, GET_TCPOPT_MSS(opt), + ep->mss, ep->emss); +} + +static enum c4iw_ep_state state_read(struct c4iw_ep_common *epc) +{ + unsigned long flags; + enum c4iw_ep_state state; + + spin_lock_irqsave(&epc->lock, flags); + state = epc->state; + spin_unlock_irqrestore(&epc->lock, flags); + return state; +} + +static void __state_set(struct c4iw_ep_common *epc, enum c4iw_ep_state new) +{ + epc->state = new; +} + +static void state_set(struct c4iw_ep_common *epc, enum c4iw_ep_state new) +{ + unsigned long flags; + + spin_lock_irqsave(&epc->lock, flags); + PDBG("%s - %s -> %s\n", __func__, states[epc->state], states[new]); + __state_set(epc, new); + spin_unlock_irqrestore(&epc->lock, flags); + return; +} + +static void *alloc_ep(int size, gfp_t gfp) +{ + struct c4iw_ep_common *epc; + + epc = kzalloc(size, gfp); + if (epc) { + kref_init(&epc->kref); + spin_lock_init(&epc->lock); + init_waitqueue_head(&epc->waitq); + } + PDBG("%s alloc ep %p\n", __func__, epc); + return epc; +} + +void _c4iw_free_ep(struct kref *kref) +{ + struct c4iw_ep *ep; + + ep = container_of(kref, struct c4iw_ep, com.kref); + PDBG("%s ep %p state %s\n", __func__, ep, states[state_read(&ep->com)]); + if (test_bit(RELEASE_RESOURCES, &ep->com.flags)) { + cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, ep->hwtid); + dst_release(ep->dst); + cxgb4_l2t_release(ep->l2t); + } + kfree(ep); +} + +static void release_ep_resources(struct c4iw_ep *ep) +{ + set_bit(RELEASE_RESOURCES, &ep->com.flags); + c4iw_put_ep(&ep->com); +} + +static int status2errno(int status) +{ + switch (status) { + case CPL_ERR_NONE: + return 0; + case CPL_ERR_CONN_RESET: + return -ECONNRESET; + case CPL_ERR_ARP_MISS: + return -EHOSTUNREACH; + case CPL_ERR_CONN_TIMEDOUT: + return -ETIMEDOUT; + case CPL_ERR_TCAM_FULL: + return -ENOMEM; + case CPL_ERR_CONN_EXIST: + return -EADDRINUSE; + default: + return -EIO; + } +} + +/* + * Try and reuse skbs already allocated... + */ +static struct sk_buff *get_skb(struct sk_buff *skb, int len, gfp_t gfp) +{ + if (skb && !skb_is_nonlinear(skb) && !skb_cloned(skb)) { + skb_trim(skb, 0); + skb_get(skb); + skb_reset_transport_header(skb); + } else { + skb = alloc_skb(len, gfp); + } + return skb; +} + +static struct rtable *find_route(struct c4iw_dev *dev, __be32 local_ip, + __be32 peer_ip, __be16 local_port, + __be16 peer_port, u8 tos) +{ + struct rtable *rt; + struct flowi fl = { + .oif = 0, + .nl_u = { + .ip4_u = { + .daddr = peer_ip, + .saddr = local_ip, + .tos = tos} + }, + .proto = IPPROTO_TCP, + .uli_u = { + .ports = { + .sport = local_port, + .dport = peer_port} + } + }; + + if (ip_route_output_flow(&init_net, &rt, &fl, NULL, 0)) + return NULL; + return rt; +} + +static void arp_failure_discard(void *handle, struct sk_buff *skb) +{ + PDBG("%s c4iw_dev %p\n", __func__, handle); + kfree_skb(skb); +} + +/* + * Handle an ARP failure for an active open. + */ +static void act_open_req_arp_failure(void *handle, struct sk_buff *skb) +{ + printk(KERN_ERR MOD "ARP failure duing connect\n"); + kfree_skb(skb); +} + +/* + * Handle an ARP failure for a CPL_ABORT_REQ. Change it into a no RST variant + * and send it along. + */ +static void abort_arp_failure(void *handle, struct sk_buff *skb) +{ + struct c4iw_rdev *rdev = handle; + struct cpl_abort_req *req = cplhdr(skb); + + PDBG("%s rdev %p\n", __func__, rdev); + req->cmd = CPL_ABORT_NO_RST; + c4iw_ofld_send(rdev, skb); +} + +static void send_flowc(struct c4iw_ep *ep, struct sk_buff *skb) +{ + unsigned int flowclen = 80; + struct fw_flowc_wr *flowc; + int i; + + skb = get_skb(skb, flowclen, GFP_KERNEL); + flowc = (struct fw_flowc_wr *)__skb_put(skb, flowclen); + + flowc->op_to_nparams = cpu_to_be32(FW_WR_OP(FW_FLOWC_WR) | + FW_FLOWC_WR_NPARAMS(8)); + flowc->flowid_len16 = cpu_to_be32(FW_WR_LEN16(DIV_ROUND_UP(flowclen, + 16)) | FW_WR_FLOWID(ep->hwtid)); + + flowc->mnemval[0].mnemonic = FW_FLOWC_MNEM_PFNVFN; + flowc->mnemval[0].val = cpu_to_be32(0); + flowc->mnemval[1].mnemonic = FW_FLOWC_MNEM_CH; + flowc->mnemval[1].val = cpu_to_be32(ep->tx_chan); + flowc->mnemval[2].mnemonic = FW_FLOWC_MNEM_PORT; + flowc->mnemval[2].val = cpu_to_be32(ep->tx_chan); + flowc->mnemval[3].mnemonic = FW_FLOWC_MNEM_IQID; + flowc->mnemval[3].val = cpu_to_be32(ep->rss_qid); + flowc->mnemval[4].mnemonic = FW_FLOWC_MNEM_SNDNXT; + flowc->mnemval[4].val = cpu_to_be32(ep->snd_seq); + flowc->mnemval[5].mnemonic = FW_FLOWC_MNEM_RCVNXT; + flowc->mnemval[5].val = cpu_to_be32(ep->rcv_seq); + flowc->mnemval[6].mnemonic = FW_FLOWC_MNEM_SNDBUF; + flowc->mnemval[6].val = cpu_to_be32(snd_win); + flowc->mnemval[7].mnemonic = FW_FLOWC_MNEM_MSS; + flowc->mnemval[7].val = cpu_to_be32(ep->emss); + /* Pad WR to 16 byte boundary */ + flowc->mnemval[8].mnemonic = 0; + flowc->mnemval[8].val = 0; + for (i = 0; i < 9; i++) { + flowc->mnemval[i].r4[0] = 0; + flowc->mnemval[i].r4[1] = 0; + flowc->mnemval[i].r4[2] = 0; + } + + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + c4iw_ofld_send(&ep->com.dev->rdev, skb); +} + +static int send_halfclose(struct c4iw_ep *ep, gfp_t gfp) +{ + struct cpl_close_con_req *req; + struct sk_buff *skb; + int wrlen = roundup(sizeof *req, 16); + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + skb = get_skb(NULL, wrlen, gfp); + if (!skb) { + printk(KERN_ERR MOD "%s - failed to alloc skb\n", __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + t4_set_arp_err_handler(skb, NULL, arp_failure_discard); + req = (struct cpl_close_con_req *) skb_put(skb, wrlen); + memset(req, 0, wrlen); + INIT_TP_WR(req, ep->hwtid); + OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_CON_REQ, + ep->hwtid)); + return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); +} + +static int send_abort(struct c4iw_ep *ep, struct sk_buff *skb, gfp_t gfp) +{ + struct cpl_abort_req *req; + int wrlen = roundup(sizeof *req, 16); + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + skb = get_skb(skb, wrlen, gfp); + if (!skb) { + printk(KERN_ERR MOD "%s - failed to alloc skb.\n", + __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + t4_set_arp_err_handler(skb, &ep->com.dev->rdev, abort_arp_failure); + req = (struct cpl_abort_req *) skb_put(skb, wrlen); + memset(req, 0, wrlen); + INIT_TP_WR(req, ep->hwtid); + OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_REQ, ep->hwtid)); + req->cmd = CPL_ABORT_SEND_RST; + return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); +} + +static int send_connect(struct c4iw_ep *ep) +{ + struct cpl_act_open_req *req; + struct sk_buff *skb; + u64 opt0; + u32 opt2; + unsigned int mtu_idx; + int wscale; + int wrlen = roundup(sizeof *req, 16); + + PDBG("%s ep %p atid %u\n", __func__, ep, ep->atid); + + skb = get_skb(NULL, wrlen, GFP_KERNEL); + if (!skb) { + printk(KERN_ERR MOD "%s - failed to alloc skb.\n", + __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_SETUP, ep->txq_idx); + + cxgb4_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx); + wscale = compute_wscale(rcv_win); + opt0 = KEEP_ALIVE(1) | + WND_SCALE(wscale) | + MSS_IDX(mtu_idx) | + L2T_IDX(ep->l2t->idx) | + TX_CHAN(ep->tx_chan) | + SMAC_SEL(ep->smac_idx) | + DSCP(ep->tos) | + RCV_BUFSIZ(rcv_win>>10); + opt2 = RX_CHANNEL(0) | + RSS_QUEUE_VALID | RSS_QUEUE(ep->rss_qid); + if (enable_tcp_timestamps) + opt2 |= TSTAMPS_EN(1); + if (enable_tcp_sack) + opt2 |= SACK_EN(1); + if (wscale && enable_tcp_window_scaling) + opt2 |= WND_SCALE_EN(1); + t4_set_arp_err_handler(skb, NULL, act_open_req_arp_failure); + + req = (struct cpl_act_open_req *) skb_put(skb, wrlen); + INIT_TP_WR(req, 0); + OPCODE_TID(req) = cpu_to_be32( + MK_OPCODE_TID(CPL_ACT_OPEN_REQ, ((ep->rss_qid<<14)|ep->atid))); + req->local_port = ep->com.local_addr.sin_port; + req->peer_port = ep->com.remote_addr.sin_port; + req->local_ip = ep->com.local_addr.sin_addr.s_addr; + req->peer_ip = ep->com.remote_addr.sin_addr.s_addr; + req->opt0 = cpu_to_be64(opt0); + req->params = 0; + req->opt2 = cpu_to_be32(opt2); + return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); +} + +static void send_mpa_req(struct c4iw_ep *ep, struct sk_buff *skb) +{ + int mpalen, wrlen; + struct fw_ofld_tx_data_wr *req; + struct mpa_message *mpa; + + PDBG("%s ep %p tid %u pd_len %d\n", __func__, ep, ep->hwtid, ep->plen); + + BUG_ON(skb_cloned(skb)); + + mpalen = sizeof(*mpa) + ep->plen; + wrlen = roundup(mpalen + sizeof *req, 16); + skb = get_skb(skb, wrlen, GFP_KERNEL); + if (!skb) { + connect_reply_upcall(ep, -ENOMEM); + return; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + + req = (struct fw_ofld_tx_data_wr *)skb_put(skb, wrlen); + memset(req, 0, wrlen); + req->op_to_immdlen = cpu_to_be32( + FW_WR_OP(FW_OFLD_TX_DATA_WR) | + FW_WR_COMPL(1) | + FW_WR_IMMDLEN(mpalen)); + req->flowid_len16 = cpu_to_be32( + FW_WR_FLOWID(ep->hwtid) | + FW_WR_LEN16(wrlen >> 4)); + req->plen = cpu_to_be32(mpalen); + req->tunnel_to_proxy = cpu_to_be32( + FW_OFLD_TX_DATA_WR_FLUSH(1) | + FW_OFLD_TX_DATA_WR_SHOVE(1)); + + mpa = (struct mpa_message *)(req + 1); + memcpy(mpa->key, MPA_KEY_REQ, sizeof(mpa->key)); + mpa->flags = (crc_enabled ? MPA_CRC : 0) | + (markers_enabled ? MPA_MARKERS : 0); + mpa->private_data_size = htons(ep->plen); + mpa->revision = mpa_rev; + + if (ep->plen) + memcpy(mpa->private_data, ep->mpa_pkt + sizeof(*mpa), ep->plen); + + /* + * Reference the mpa skb. This ensures the data area + * will remain in memory until the hw acks the tx. + * Function fw4_ack() will deref it. + */ + skb_get(skb); + t4_set_arp_err_handler(skb, NULL, arp_failure_discard); + BUG_ON(ep->mpa_skb); + ep->mpa_skb = skb; + c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); + start_ep_timer(ep); + state_set(&ep->com, MPA_REQ_SENT); + ep->mpa_attr.initiator = 1; + return; +} + +static int send_mpa_reject(struct c4iw_ep *ep, const void *pdata, u8 plen) +{ + int mpalen, wrlen; + struct fw_ofld_tx_data_wr *req; + struct mpa_message *mpa; + struct sk_buff *skb; + + PDBG("%s ep %p tid %u pd_len %d\n", __func__, ep, ep->hwtid, ep->plen); + + mpalen = sizeof(*mpa) + plen; + wrlen = roundup(mpalen + sizeof *req, 16); + + skb = get_skb(NULL, wrlen, GFP_KERNEL); + if (!skb) { + printk(KERN_ERR MOD "%s - cannot alloc skb!\n", __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + + req = (struct fw_ofld_tx_data_wr *)skb_put(skb, wrlen); + memset(req, 0, wrlen); + req->op_to_immdlen = cpu_to_be32( + FW_WR_OP(FW_OFLD_TX_DATA_WR) | + FW_WR_COMPL(1) | + FW_WR_IMMDLEN(mpalen)); + req->flowid_len16 = cpu_to_be32( + FW_WR_FLOWID(ep->hwtid) | + FW_WR_LEN16(wrlen >> 4)); + req->plen = cpu_to_be32(mpalen); + req->tunnel_to_proxy = cpu_to_be32( + FW_OFLD_TX_DATA_WR_FLUSH(1) | + FW_OFLD_TX_DATA_WR_SHOVE(1)); + + mpa = (struct mpa_message *)(req + 1); + memset(mpa, 0, sizeof(*mpa)); + memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key)); + mpa->flags = MPA_REJECT; + mpa->revision = mpa_rev; + mpa->private_data_size = htons(plen); + if (plen) + memcpy(mpa->private_data, pdata, plen); + + /* + * Reference the mpa skb again. This ensures the data area + * will remain in memory until the hw acks the tx. + * Function fw4_ack() will deref it. + */ + skb_get(skb); + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + t4_set_arp_err_handler(skb, NULL, arp_failure_discard); + BUG_ON(ep->mpa_skb); + ep->mpa_skb = skb; + return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); +} + +static int send_mpa_reply(struct c4iw_ep *ep, const void *pdata, u8 plen) +{ + int mpalen, wrlen; + struct fw_ofld_tx_data_wr *req; + struct mpa_message *mpa; + struct sk_buff *skb; + + PDBG("%s ep %p tid %u pd_len %d\n", __func__, ep, ep->hwtid, ep->plen); + + mpalen = sizeof(*mpa) + plen; + wrlen = roundup(mpalen + sizeof *req, 16); + + skb = get_skb(NULL, wrlen, GFP_KERNEL); + if (!skb) { + printk(KERN_ERR MOD "%s - cannot alloc skb!\n", __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + + req = (struct fw_ofld_tx_data_wr *) skb_put(skb, wrlen); + memset(req, 0, wrlen); + req->op_to_immdlen = cpu_to_be32( + FW_WR_OP(FW_OFLD_TX_DATA_WR) | + FW_WR_COMPL(1) | + FW_WR_IMMDLEN(mpalen)); + req->flowid_len16 = cpu_to_be32( + FW_WR_FLOWID(ep->hwtid) | + FW_WR_LEN16(wrlen >> 4)); + req->plen = cpu_to_be32(mpalen); + req->tunnel_to_proxy = cpu_to_be32( + FW_OFLD_TX_DATA_WR_FLUSH(1) | + FW_OFLD_TX_DATA_WR_SHOVE(1)); + + mpa = (struct mpa_message *)(req + 1); + memset(mpa, 0, sizeof(*mpa)); + memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key)); + mpa->flags = (ep->mpa_attr.crc_enabled ? MPA_CRC : 0) | + (markers_enabled ? MPA_MARKERS : 0); + mpa->revision = mpa_rev; + mpa->private_data_size = htons(plen); + if (plen) + memcpy(mpa->private_data, pdata, plen); + + /* + * Reference the mpa skb. This ensures the data area + * will remain in memory until the hw acks the tx. + * Function fw4_ack() will deref it. + */ + skb_get(skb); + t4_set_arp_err_handler(skb, NULL, arp_failure_discard); + ep->mpa_skb = skb; + state_set(&ep->com, MPA_REP_SENT); + return c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); +} + +static int act_establish(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_act_establish *req = cplhdr(skb); + unsigned int tid = GET_TID(req); + unsigned int atid = GET_TID_TID(ntohl(req->tos_atid)); + struct tid_info *t = dev->rdev.lldi.tids; + + ep = lookup_atid(t, atid); + + PDBG("%s ep %p tid %u snd_isn %u rcv_isn %u\n", __func__, ep, tid, + be32_to_cpu(req->snd_isn), be32_to_cpu(req->rcv_isn)); + + dst_confirm(ep->dst); + + /* setup the hwtid for this connection */ + ep->hwtid = tid; + cxgb4_insert_tid(t, ep, tid); + + ep->snd_seq = be32_to_cpu(req->snd_isn); + ep->rcv_seq = be32_to_cpu(req->rcv_isn); + + set_emss(ep, ntohs(req->tcp_opt)); + + /* dealloc the atid */ + cxgb4_free_atid(t, atid); + + /* start MPA negotiation */ + send_flowc(ep, NULL); + send_mpa_req(ep, skb); + + return 0; +} + +static void close_complete_upcall(struct c4iw_ep *ep) +{ + struct iw_cm_event event; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + memset(&event, 0, sizeof(event)); + event.event = IW_CM_EVENT_CLOSE; + if (ep->com.cm_id) { + PDBG("close complete delivered ep %p cm_id %p tid %u\n", + ep, ep->com.cm_id, ep->hwtid); + ep->com.cm_id->event_handler(ep->com.cm_id, &event); + ep->com.cm_id->rem_ref(ep->com.cm_id); + ep->com.cm_id = NULL; + ep->com.qp = NULL; + } +} + +static int abort_connection(struct c4iw_ep *ep, struct sk_buff *skb, gfp_t gfp) +{ + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + close_complete_upcall(ep); + state_set(&ep->com, ABORTING); + return send_abort(ep, skb, gfp); +} + +static void peer_close_upcall(struct c4iw_ep *ep) +{ + struct iw_cm_event event; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + memset(&event, 0, sizeof(event)); + event.event = IW_CM_EVENT_DISCONNECT; + if (ep->com.cm_id) { + PDBG("peer close delivered ep %p cm_id %p tid %u\n", + ep, ep->com.cm_id, ep->hwtid); + ep->com.cm_id->event_handler(ep->com.cm_id, &event); + } +} + +static void peer_abort_upcall(struct c4iw_ep *ep) +{ + struct iw_cm_event event; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + memset(&event, 0, sizeof(event)); + event.event = IW_CM_EVENT_CLOSE; + event.status = -ECONNRESET; + if (ep->com.cm_id) { + PDBG("abort delivered ep %p cm_id %p tid %u\n", ep, + ep->com.cm_id, ep->hwtid); + ep->com.cm_id->event_handler(ep->com.cm_id, &event); + ep->com.cm_id->rem_ref(ep->com.cm_id); + ep->com.cm_id = NULL; + ep->com.qp = NULL; + } +} + +static void connect_reply_upcall(struct c4iw_ep *ep, int status) +{ + struct iw_cm_event event; + + PDBG("%s ep %p tid %u status %d\n", __func__, ep, ep->hwtid, status); + memset(&event, 0, sizeof(event)); + event.event = IW_CM_EVENT_CONNECT_REPLY; + event.status = status; + event.local_addr = ep->com.local_addr; + event.remote_addr = ep->com.remote_addr; + + if ((status == 0) || (status == -ECONNREFUSED)) { + event.private_data_len = ep->plen; + event.private_data = ep->mpa_pkt + sizeof(struct mpa_message); + } + if (ep->com.cm_id) { + PDBG("%s ep %p tid %u status %d\n", __func__, ep, + ep->hwtid, status); + ep->com.cm_id->event_handler(ep->com.cm_id, &event); + } + if (status < 0) { + ep->com.cm_id->rem_ref(ep->com.cm_id); + ep->com.cm_id = NULL; + ep->com.qp = NULL; + } +} + +static void connect_request_upcall(struct c4iw_ep *ep) +{ + struct iw_cm_event event; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + memset(&event, 0, sizeof(event)); + event.event = IW_CM_EVENT_CONNECT_REQUEST; + event.local_addr = ep->com.local_addr; + event.remote_addr = ep->com.remote_addr; + event.private_data_len = ep->plen; + event.private_data = ep->mpa_pkt + sizeof(struct mpa_message); + event.provider_data = ep; + if (state_read(&ep->parent_ep->com) != DEAD) { + c4iw_get_ep(&ep->com); + ep->parent_ep->com.cm_id->event_handler( + ep->parent_ep->com.cm_id, + &event); + } + c4iw_put_ep(&ep->parent_ep->com); + ep->parent_ep = NULL; +} + +static void established_upcall(struct c4iw_ep *ep) +{ + struct iw_cm_event event; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + memset(&event, 0, sizeof(event)); + event.event = IW_CM_EVENT_ESTABLISHED; + if (ep->com.cm_id) { + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + ep->com.cm_id->event_handler(ep->com.cm_id, &event); + } +} + +static int update_rx_credits(struct c4iw_ep *ep, u32 credits) +{ + struct cpl_rx_data_ack *req; + struct sk_buff *skb; + int wrlen = roundup(sizeof *req, 16); + + PDBG("%s ep %p tid %u credits %u\n", __func__, ep, ep->hwtid, credits); + skb = get_skb(NULL, wrlen, GFP_KERNEL); + if (!skb) { + printk(KERN_ERR MOD "update_rx_credits - cannot alloc skb!\n"); + return 0; + } + + req = (struct cpl_rx_data_ack *) skb_put(skb, wrlen); + memset(req, 0, wrlen); + INIT_TP_WR(req, ep->hwtid); + OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_RX_DATA_ACK, + ep->hwtid)); + req->credit_dack = cpu_to_be32(credits); + set_wr_txq(skb, CPL_PRIORITY_ACK, ep->txq_idx); + c4iw_ofld_send(&ep->com.dev->rdev, skb); + return credits; +} + +static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) +{ + struct mpa_message *mpa; + u16 plen; + struct c4iw_qp_attributes attrs; + enum c4iw_qp_attr_mask mask; + int err; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + + /* + * Stop mpa timer. If it expired, then the state has + * changed and we bail since ep_timeout already aborted + * the connection. + */ + stop_ep_timer(ep); + if (state_read(&ep->com) != MPA_REQ_SENT) + return; + + /* + * If we get more than the supported amount of private data + * then we must fail this connection. + */ + if (ep->mpa_pkt_len + skb->len > sizeof(ep->mpa_pkt)) { + err = -EINVAL; + goto err; + } + + /* + * copy the new data into our accumulation buffer. + */ + skb_copy_from_linear_data(skb, &(ep->mpa_pkt[ep->mpa_pkt_len]), + skb->len); + ep->mpa_pkt_len += skb->len; + + /* + * if we don't even have the mpa message, then bail. + */ + if (ep->mpa_pkt_len < sizeof(*mpa)) + return; + mpa = (struct mpa_message *) ep->mpa_pkt; + + /* Validate MPA header. */ + if (mpa->revision != mpa_rev) { + err = -EPROTO; + goto err; + } + if (memcmp(mpa->key, MPA_KEY_REP, sizeof(mpa->key))) { + err = -EPROTO; + goto err; + } + + plen = ntohs(mpa->private_data_size); + + /* + * Fail if there's too much private data. + */ + if (plen > MPA_MAX_PRIVATE_DATA) { + err = -EPROTO; + goto err; + } + + /* + * If plen does not account for pkt size + */ + if (ep->mpa_pkt_len > (sizeof(*mpa) + plen)) { + err = -EPROTO; + goto err; + } + + ep->plen = (u8) plen; + + /* + * If we don't have all the pdata yet, then bail. + * We'll continue process when more data arrives. + */ + if (ep->mpa_pkt_len < (sizeof(*mpa) + plen)) + return; + + if (mpa->flags & MPA_REJECT) { + err = -ECONNREFUSED; + goto err; + } + + /* + * If we get here we have accumulated the entire mpa + * start reply message including private data. And + * the MPA header is valid. + */ + state_set(&ep->com, FPDU_MODE); + ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0; + ep->mpa_attr.recv_marker_enabled = markers_enabled; + ep->mpa_attr.xmit_marker_enabled = mpa->flags & MPA_MARKERS ? 1 : 0; + ep->mpa_attr.version = mpa_rev; + ep->mpa_attr.p2p_type = peer2peer ? p2p_type : + FW_RI_INIT_P2PTYPE_DISABLED; + PDBG("%s - crc_enabled=%d, recv_marker_enabled=%d, " + "xmit_marker_enabled=%d, version=%d\n", __func__, + ep->mpa_attr.crc_enabled, ep->mpa_attr.recv_marker_enabled, + ep->mpa_attr.xmit_marker_enabled, ep->mpa_attr.version); + + attrs.mpa_attr = ep->mpa_attr; + attrs.max_ird = ep->ird; + attrs.max_ord = ep->ord; + attrs.llp_stream_handle = ep; + attrs.next_state = C4IW_QP_STATE_RTS; + + mask = C4IW_QP_ATTR_NEXT_STATE | + C4IW_QP_ATTR_LLP_STREAM_HANDLE | C4IW_QP_ATTR_MPA_ATTR | + C4IW_QP_ATTR_MAX_IRD | C4IW_QP_ATTR_MAX_ORD; + + /* bind QP and TID with INIT_WR */ + err = c4iw_modify_qp(ep->com.qp->rhp, + ep->com.qp, mask, &attrs, 1); + if (err) + goto err; + goto out; +err: + abort_connection(ep, skb, GFP_KERNEL); +out: + connect_reply_upcall(ep, err); + return; +} + +static void process_mpa_request(struct c4iw_ep *ep, struct sk_buff *skb) +{ + struct mpa_message *mpa; + u16 plen; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + + if (state_read(&ep->com) != MPA_REQ_WAIT) + return; + + /* + * If we get more than the supported amount of private data + * then we must fail this connection. + */ + if (ep->mpa_pkt_len + skb->len > sizeof(ep->mpa_pkt)) { + stop_ep_timer(ep); + abort_connection(ep, skb, GFP_KERNEL); + return; + } + + PDBG("%s enter (%s line %u)\n", __func__, __FILE__, __LINE__); + + /* + * Copy the new data into our accumulation buffer. + */ + skb_copy_from_linear_data(skb, &(ep->mpa_pkt[ep->mpa_pkt_len]), + skb->len); + ep->mpa_pkt_len += skb->len; + + /* + * If we don't even have the mpa message, then bail. + * We'll continue process when more data arrives. + */ + if (ep->mpa_pkt_len < sizeof(*mpa)) + return; + + PDBG("%s enter (%s line %u)\n", __func__, __FILE__, __LINE__); + stop_ep_timer(ep); + mpa = (struct mpa_message *) ep->mpa_pkt; + + /* + * Validate MPA Header. + */ + if (mpa->revision != mpa_rev) { + abort_connection(ep, skb, GFP_KERNEL); + return; + } + + if (memcmp(mpa->key, MPA_KEY_REQ, sizeof(mpa->key))) { + abort_connection(ep, skb, GFP_KERNEL); + return; + } + + plen = ntohs(mpa->private_data_size); + + /* + * Fail if there's too much private data. + */ + if (plen > MPA_MAX_PRIVATE_DATA) { + abort_connection(ep, skb, GFP_KERNEL); + return; + } + + /* + * If plen does not account for pkt size + */ + if (ep->mpa_pkt_len > (sizeof(*mpa) + plen)) { + abort_connection(ep, skb, GFP_KERNEL); + return; + } + ep->plen = (u8) plen; + + /* + * If we don't have all the pdata yet, then bail. + */ + if (ep->mpa_pkt_len < (sizeof(*mpa) + plen)) + return; + + /* + * If we get here we have accumulated the entire mpa + * start reply message including private data. + */ + ep->mpa_attr.initiator = 0; + ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0; + ep->mpa_attr.recv_marker_enabled = markers_enabled; + ep->mpa_attr.xmit_marker_enabled = mpa->flags & MPA_MARKERS ? 1 : 0; + ep->mpa_attr.version = mpa_rev; + ep->mpa_attr.p2p_type = peer2peer ? p2p_type : + FW_RI_INIT_P2PTYPE_DISABLED; + PDBG("%s - crc_enabled=%d, recv_marker_enabled=%d, " + "xmit_marker_enabled=%d, version=%d p2p_type=%d\n", __func__, + ep->mpa_attr.crc_enabled, ep->mpa_attr.recv_marker_enabled, + ep->mpa_attr.xmit_marker_enabled, ep->mpa_attr.version, + ep->mpa_attr.p2p_type); + + state_set(&ep->com, MPA_REQ_RCVD); + + /* drive upcall */ + connect_request_upcall(ep); + return; +} + +static int rx_data(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_rx_data *hdr = cplhdr(skb); + unsigned int dlen = ntohs(hdr->len); + unsigned int tid = GET_TID(hdr); + struct tid_info *t = dev->rdev.lldi.tids; + + ep = lookup_tid(t, tid); + PDBG("%s ep %p tid %u dlen %u\n", __func__, ep, ep->hwtid, dlen); + skb_pull(skb, sizeof(*hdr)); + skb_trim(skb, dlen); + + ep->rcv_seq += dlen; + BUG_ON(ep->rcv_seq != (ntohl(hdr->seq) + dlen)); + + /* update RX credits */ + update_rx_credits(ep, dlen); + + switch (state_read(&ep->com)) { + case MPA_REQ_SENT: + process_mpa_reply(ep, skb); + break; + case MPA_REQ_WAIT: + process_mpa_request(ep, skb); + break; + case MPA_REP_SENT: + break; + default: + printk(KERN_ERR MOD "%s Unexpected streaming data." + " ep %p state %d tid %u\n", + __func__, ep, state_read(&ep->com), ep->hwtid); + + /* + * The ep will timeout and inform the ULP of the failure. + * See ep_timeout(). + */ + break; + } + return 0; +} + +static int abort_rpl(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_abort_rpl_rss *rpl = cplhdr(skb); + unsigned long flags; + int release = 0; + unsigned int tid = GET_TID(rpl); + struct tid_info *t = dev->rdev.lldi.tids; + + ep = lookup_tid(t, tid); + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + BUG_ON(!ep); + spin_lock_irqsave(&ep->com.lock, flags); + switch (ep->com.state) { + case ABORTING: + __state_set(&ep->com, DEAD); + release = 1; + break; + default: + printk(KERN_ERR "%s ep %p state %d\n", + __func__, ep, ep->com.state); + break; + } + spin_unlock_irqrestore(&ep->com.lock, flags); + + if (release) + release_ep_resources(ep); + return 0; +} + +/* + * Return whether a failed active open has allocated a TID + */ +static inline int act_open_has_tid(int status) +{ + return status != CPL_ERR_TCAM_FULL && status != CPL_ERR_CONN_EXIST && + status != CPL_ERR_ARP_MISS; +} + +static int act_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_act_open_rpl *rpl = cplhdr(skb); + unsigned int atid = GET_TID_TID(GET_AOPEN_ATID( + ntohl(rpl->atid_status))); + struct tid_info *t = dev->rdev.lldi.tids; + int status = GET_AOPEN_STATUS(ntohl(rpl->atid_status)); + + ep = lookup_atid(t, atid); + + PDBG("%s ep %p atid %u status %u errno %d\n", __func__, ep, atid, + status, status2errno(status)); + + if (status == CPL_ERR_RTX_NEG_ADVICE) { + printk(KERN_WARNING MOD "Connection problems for atid %u\n", + atid); + return 0; + } + + connect_reply_upcall(ep, status2errno(status)); + state_set(&ep->com, DEAD); + + if (status && act_open_has_tid(status)) + cxgb4_remove_tid(ep->com.dev->rdev.lldi.tids, 0, GET_TID(rpl)); + + cxgb4_free_atid(t, atid); + dst_release(ep->dst); + cxgb4_l2t_release(ep->l2t); + c4iw_put_ep(&ep->com); + + return 0; +} + +static int pass_open_rpl(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct cpl_pass_open_rpl *rpl = cplhdr(skb); + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int stid = GET_TID(rpl); + struct c4iw_listen_ep *ep = lookup_stid(t, stid); + + if (!ep) { + printk(KERN_ERR MOD "stid %d lookup failure!\n", stid); + return 0; + } + PDBG("%s ep %p status %d error %d\n", __func__, ep, + rpl->status, status2errno(rpl->status)); + ep->com.rpl_err = status2errno(rpl->status); + ep->com.rpl_done = 1; + wake_up(&ep->com.waitq); + + return 0; +} + +static int listen_stop(struct c4iw_listen_ep *ep) +{ + struct sk_buff *skb; + struct cpl_close_listsvr_req *req; + + PDBG("%s ep %p\n", __func__, ep); + skb = get_skb(NULL, sizeof(*req), GFP_KERNEL); + if (!skb) { + printk(KERN_ERR MOD "%s - failed to alloc skb\n", __func__); + return -ENOMEM; + } + req = (struct cpl_close_listsvr_req *) skb_put(skb, sizeof(*req)); + INIT_TP_WR(req, 0); + OPCODE_TID(req) = cpu_to_be32(MK_OPCODE_TID(CPL_CLOSE_LISTSRV_REQ, + ep->stid)); + req->reply_ctrl = cpu_to_be16( + QUEUENO(ep->com.dev->rdev.lldi.rxq_ids[0])); + set_wr_txq(skb, CPL_PRIORITY_SETUP, 0); + return c4iw_ofld_send(&ep->com.dev->rdev, skb); +} + +static int close_listsrv_rpl(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct cpl_close_listsvr_rpl *rpl = cplhdr(skb); + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int stid = GET_TID(rpl); + struct c4iw_listen_ep *ep = lookup_stid(t, stid); + + PDBG("%s ep %p\n", __func__, ep); + ep->com.rpl_err = status2errno(rpl->status); + ep->com.rpl_done = 1; + wake_up(&ep->com.waitq); + return 0; +} + +static void accept_cr(struct c4iw_ep *ep, __be32 peer_ip, struct sk_buff *skb, + struct cpl_pass_accept_req *req) +{ + struct cpl_pass_accept_rpl *rpl; + unsigned int mtu_idx; + u64 opt0; + u32 opt2; + int wscale; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + BUG_ON(skb_cloned(skb)); + skb_trim(skb, sizeof(*rpl)); + skb_get(skb); + cxgb4_best_mtu(ep->com.dev->rdev.lldi.mtus, ep->mtu, &mtu_idx); + wscale = compute_wscale(rcv_win); + opt0 = KEEP_ALIVE(1) | + WND_SCALE(wscale) | + MSS_IDX(mtu_idx) | + L2T_IDX(ep->l2t->idx) | + TX_CHAN(ep->tx_chan) | + SMAC_SEL(ep->smac_idx) | + DSCP(ep->tos) | + RCV_BUFSIZ(rcv_win>>10); + opt2 = RX_CHANNEL(0) | + RSS_QUEUE_VALID | RSS_QUEUE(ep->rss_qid); + + if (enable_tcp_timestamps && req->tcpopt.tstamp) + opt2 |= TSTAMPS_EN(1); + if (enable_tcp_sack && req->tcpopt.sack) + opt2 |= SACK_EN(1); + if (wscale && enable_tcp_window_scaling) + opt2 |= WND_SCALE_EN(1); + + rpl = cplhdr(skb); + INIT_TP_WR(rpl, ep->hwtid); + OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_PASS_ACCEPT_RPL, + ep->hwtid)); + rpl->opt0 = cpu_to_be64(opt0); + rpl->opt2 = cpu_to_be32(opt2); + set_wr_txq(skb, CPL_PRIORITY_SETUP, ep->txq_idx); + c4iw_l2t_send(&ep->com.dev->rdev, skb, ep->l2t); + + return; +} + +static void reject_cr(struct c4iw_dev *dev, u32 hwtid, __be32 peer_ip, + struct sk_buff *skb) +{ + PDBG("%s c4iw_dev %p tid %u peer_ip %x\n", __func__, dev, hwtid, + peer_ip); + BUG_ON(skb_cloned(skb)); + skb_trim(skb, sizeof(struct cpl_tid_release)); + skb_get(skb); + release_tid(&dev->rdev, hwtid, skb); + return; +} + +static void get_4tuple(struct cpl_pass_accept_req *req, + __be32 *local_ip, __be32 *peer_ip, + __be16 *local_port, __be16 *peer_port) +{ + int eth_len = G_ETH_HDR_LEN(be32_to_cpu(req->hdr_len)); + int ip_len = G_IP_HDR_LEN(be32_to_cpu(req->hdr_len)); + struct iphdr *ip = (struct iphdr *)((u8 *)(req + 1) + eth_len); + struct tcphdr *tcp = (struct tcphdr *) + ((u8 *)(req + 1) + eth_len + ip_len); + + PDBG("%s saddr 0x%x daddr 0x%x sport %u dport %u\n", __func__, + ntohl(ip->saddr), ntohl(ip->daddr), ntohs(tcp->source), + ntohs(tcp->dest)); + + *peer_ip = ip->saddr; + *local_ip = ip->daddr; + *peer_port = tcp->source; + *local_port = tcp->dest; + + return; +} + +static int pass_accept_req(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *child_ep, *parent_ep; + struct cpl_pass_accept_req *req = cplhdr(skb); + unsigned int stid = GET_POPEN_TID(ntohl(req->tos_stid)); + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int hwtid = GET_TID(req); + struct dst_entry *dst; + struct l2t_entry *l2t; + struct rtable *rt; + __be32 local_ip, peer_ip; + __be16 local_port, peer_port; + struct net_device *pdev; + u32 tx_chan, smac_idx; + u16 rss_qid; + u32 mtu; + int step; + int txq_idx; + + parent_ep = lookup_stid(t, stid); + PDBG("%s parent ep %p tid %u\n", __func__, parent_ep, hwtid); + + get_4tuple(req, &local_ip, &peer_ip, &local_port, &peer_port); + + if (state_read(&parent_ep->com) != LISTEN) { + printk(KERN_ERR "%s - listening ep not in LISTEN\n", + __func__); + goto reject; + } + + /* Find output route */ + rt = find_route(dev, local_ip, peer_ip, local_port, peer_port, + GET_POPEN_TOS(ntohl(req->tos_stid))); + if (!rt) { + printk(KERN_ERR MOD "%s - failed to find dst entry!\n", + __func__); + goto reject; + } + dst = &rt->u.dst; + if (dst->neighbour->dev->flags & IFF_LOOPBACK) { + pdev = ip_dev_find(&init_net, peer_ip); + BUG_ON(!pdev); + l2t = cxgb4_l2t_get(dev->rdev.lldi.l2t, dst->neighbour, + pdev, 0); + mtu = pdev->mtu; + tx_chan = cxgb4_port_chan(pdev); + smac_idx = tx_chan << 1; + step = dev->rdev.lldi.ntxq / dev->rdev.lldi.nchan; + txq_idx = cxgb4_port_idx(pdev) * step; + step = dev->rdev.lldi.nrxq / dev->rdev.lldi.nchan; + rss_qid = dev->rdev.lldi.rxq_ids[cxgb4_port_idx(pdev) * step]; + dev_put(pdev); + } else { + l2t = cxgb4_l2t_get(dev->rdev.lldi.l2t, dst->neighbour, + dst->neighbour->dev, 0); + mtu = dst_mtu(dst); + tx_chan = cxgb4_port_chan(dst->neighbour->dev); + smac_idx = tx_chan << 1; + step = dev->rdev.lldi.ntxq / dev->rdev.lldi.nchan; + txq_idx = cxgb4_port_idx(dst->neighbour->dev) * step; + step = dev->rdev.lldi.nrxq / dev->rdev.lldi.nchan; + rss_qid = dev->rdev.lldi.rxq_ids[ + cxgb4_port_idx(dst->neighbour->dev) * step]; + } + if (!l2t) { + printk(KERN_ERR MOD "%s - failed to allocate l2t entry!\n", + __func__); + dst_release(dst); + goto reject; + } + + child_ep = alloc_ep(sizeof(*child_ep), GFP_KERNEL); + if (!child_ep) { + printk(KERN_ERR MOD "%s - failed to allocate ep entry!\n", + __func__); + cxgb4_l2t_release(l2t); + dst_release(dst); + goto reject; + } + state_set(&child_ep->com, CONNECTING); + child_ep->com.dev = dev; + child_ep->com.cm_id = NULL; + child_ep->com.local_addr.sin_family = PF_INET; + child_ep->com.local_addr.sin_port = local_port; + child_ep->com.local_addr.sin_addr.s_addr = local_ip; + child_ep->com.remote_addr.sin_family = PF_INET; + child_ep->com.remote_addr.sin_port = peer_port; + child_ep->com.remote_addr.sin_addr.s_addr = peer_ip; + c4iw_get_ep(&parent_ep->com); + child_ep->parent_ep = parent_ep; + child_ep->tos = GET_POPEN_TOS(ntohl(req->tos_stid)); + child_ep->l2t = l2t; + child_ep->dst = dst; + child_ep->hwtid = hwtid; + child_ep->tx_chan = tx_chan; + child_ep->smac_idx = smac_idx; + child_ep->rss_qid = rss_qid; + child_ep->mtu = mtu; + child_ep->txq_idx = txq_idx; + + PDBG("%s tx_chan %u smac_idx %u rss_qid %u\n", __func__, + tx_chan, smac_idx, rss_qid); + + init_timer(&child_ep->timer); + cxgb4_insert_tid(t, child_ep, hwtid); + accept_cr(child_ep, peer_ip, skb, req); + goto out; +reject: + reject_cr(dev, hwtid, peer_ip, skb); +out: + return 0; +} + +static int pass_establish(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_pass_establish *req = cplhdr(skb); + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int tid = GET_TID(req); + + ep = lookup_tid(t, tid); + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + ep->snd_seq = be32_to_cpu(req->snd_isn); + ep->rcv_seq = be32_to_cpu(req->rcv_isn); + + set_emss(ep, ntohs(req->tcp_opt)); + + dst_confirm(ep->dst); + state_set(&ep->com, MPA_REQ_WAIT); + start_ep_timer(ep); + send_flowc(ep, skb); + + return 0; +} + +static int peer_close(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct cpl_peer_close *hdr = cplhdr(skb); + struct c4iw_ep *ep; + struct c4iw_qp_attributes attrs; + unsigned long flags; + int disconnect = 1; + int release = 0; + int closing = 0; + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int tid = GET_TID(hdr); + int start_timer = 0; + int stop_timer = 0; + + ep = lookup_tid(t, tid); + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + dst_confirm(ep->dst); + + spin_lock_irqsave(&ep->com.lock, flags); + switch (ep->com.state) { + case MPA_REQ_WAIT: + __state_set(&ep->com, CLOSING); + break; + case MPA_REQ_SENT: + __state_set(&ep->com, CLOSING); + connect_reply_upcall(ep, -ECONNRESET); + break; + case MPA_REQ_RCVD: + + /* + * We're gonna mark this puppy DEAD, but keep + * the reference on it until the ULP accepts or + * rejects the CR. Also wake up anyone waiting + * in rdma connection migration (see c4iw_accept_cr()). + */ + __state_set(&ep->com, CLOSING); + ep->com.rpl_done = 1; + ep->com.rpl_err = -ECONNRESET; + PDBG("waking up ep %p tid %u\n", ep, ep->hwtid); + wake_up(&ep->com.waitq); + break; + case MPA_REP_SENT: + __state_set(&ep->com, CLOSING); + ep->com.rpl_done = 1; + ep->com.rpl_err = -ECONNRESET; + PDBG("waking up ep %p tid %u\n", ep, ep->hwtid); + wake_up(&ep->com.waitq); + break; + case FPDU_MODE: + start_timer = 1; + __state_set(&ep->com, CLOSING); + closing = 1; + peer_close_upcall(ep); + break; + case ABORTING: + disconnect = 0; + break; + case CLOSING: + __state_set(&ep->com, MORIBUND); + disconnect = 0; + break; + case MORIBUND: + stop_timer = 1; + if (ep->com.cm_id && ep->com.qp) { + attrs.next_state = C4IW_QP_STATE_IDLE; + c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, + C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); + } + close_complete_upcall(ep); + __state_set(&ep->com, DEAD); + release = 1; + disconnect = 0; + break; + case DEAD: + disconnect = 0; + break; + default: + BUG_ON(1); + } + spin_unlock_irqrestore(&ep->com.lock, flags); + if (closing) { + attrs.next_state = C4IW_QP_STATE_CLOSING; + c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, + C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); + } + if (start_timer) + start_ep_timer(ep); + if (stop_timer) + stop_ep_timer(ep); + if (disconnect) + c4iw_ep_disconnect(ep, 0, GFP_KERNEL); + if (release) + release_ep_resources(ep); + return 0; +} + +/* + * Returns whether an ABORT_REQ_RSS message is a negative advice. + */ +static int is_neg_adv_abort(unsigned int status) +{ + return status == CPL_ERR_RTX_NEG_ADVICE || + status == CPL_ERR_PERSIST_NEG_ADVICE; +} + +static int peer_abort(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct cpl_abort_req_rss *req = cplhdr(skb); + struct c4iw_ep *ep; + struct cpl_abort_rpl *rpl; + struct sk_buff *rpl_skb; + struct c4iw_qp_attributes attrs; + int ret; + int release = 0; + unsigned long flags; + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int tid = GET_TID(req); + int stop_timer = 0; + + ep = lookup_tid(t, tid); + if (is_neg_adv_abort(req->status)) { + PDBG("%s neg_adv_abort ep %p tid %u\n", __func__, ep, + ep->hwtid); + return 0; + } + spin_lock_irqsave(&ep->com.lock, flags); + PDBG("%s ep %p tid %u state %u\n", __func__, ep, ep->hwtid, + ep->com.state); + switch (ep->com.state) { + case CONNECTING: + break; + case MPA_REQ_WAIT: + stop_timer = 1; + break; + case MPA_REQ_SENT: + stop_timer = 1; + connect_reply_upcall(ep, -ECONNRESET); + break; + case MPA_REP_SENT: + ep->com.rpl_done = 1; + ep->com.rpl_err = -ECONNRESET; + PDBG("waking up ep %p\n", ep); + wake_up(&ep->com.waitq); + break; + case MPA_REQ_RCVD: + + /* + * We're gonna mark this puppy DEAD, but keep + * the reference on it until the ULP accepts or + * rejects the CR. Also wake up anyone waiting + * in rdma connection migration (see c4iw_accept_cr()). + */ + ep->com.rpl_done = 1; + ep->com.rpl_err = -ECONNRESET; + PDBG("waking up ep %p tid %u\n", ep, ep->hwtid); + wake_up(&ep->com.waitq); + break; + case MORIBUND: + case CLOSING: + stop_timer = 1; + /*FALLTHROUGH*/ + case FPDU_MODE: + if (ep->com.cm_id && ep->com.qp) { + attrs.next_state = C4IW_QP_STATE_ERROR; + ret = c4iw_modify_qp(ep->com.qp->rhp, + ep->com.qp, C4IW_QP_ATTR_NEXT_STATE, + &attrs, 1); + if (ret) + printk(KERN_ERR MOD + "%s - qp <- error failed!\n", + __func__); + } + peer_abort_upcall(ep); + break; + case ABORTING: + break; + case DEAD: + PDBG("%s PEER_ABORT IN DEAD STATE!!!!\n", __func__); + spin_unlock_irqrestore(&ep->com.lock, flags); + return 0; + default: + BUG_ON(1); + break; + } + dst_confirm(ep->dst); + if (ep->com.state != ABORTING) { + __state_set(&ep->com, DEAD); + release = 1; + } + spin_unlock_irqrestore(&ep->com.lock, flags); + + rpl_skb = get_skb(skb, sizeof(*rpl), GFP_KERNEL); + if (!rpl_skb) { + printk(KERN_ERR MOD "%s - cannot allocate skb!\n", + __func__); + release = 1; + goto out; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, ep->txq_idx); + rpl = (struct cpl_abort_rpl *) skb_put(rpl_skb, sizeof(*rpl)); + INIT_TP_WR(rpl, ep->hwtid); + OPCODE_TID(rpl) = cpu_to_be32(MK_OPCODE_TID(CPL_ABORT_RPL, ep->hwtid)); + rpl->cmd = CPL_ABORT_NO_RST; + c4iw_ofld_send(&ep->com.dev->rdev, rpl_skb); +out: + if (stop_timer) + stop_ep_timer(ep); + if (release) + release_ep_resources(ep); + return 0; +} + +static int close_con_rpl(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct c4iw_qp_attributes attrs; + struct cpl_close_con_rpl *rpl = cplhdr(skb); + unsigned long flags; + int release = 0; + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int tid = GET_TID(rpl); + int stop_timer = 0; + + ep = lookup_tid(t, tid); + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + BUG_ON(!ep); + + /* The cm_id may be null if we failed to connect */ + spin_lock_irqsave(&ep->com.lock, flags); + switch (ep->com.state) { + case CLOSING: + __state_set(&ep->com, MORIBUND); + break; + case MORIBUND: + stop_timer = 1; + if ((ep->com.cm_id) && (ep->com.qp)) { + attrs.next_state = C4IW_QP_STATE_IDLE; + c4iw_modify_qp(ep->com.qp->rhp, + ep->com.qp, + C4IW_QP_ATTR_NEXT_STATE, + &attrs, 1); + } + close_complete_upcall(ep); + __state_set(&ep->com, DEAD); + release = 1; + break; + case ABORTING: + case DEAD: + break; + default: + BUG_ON(1); + break; + } + spin_unlock_irqrestore(&ep->com.lock, flags); + if (stop_timer) + stop_ep_timer(ep); + if (release) + release_ep_resources(ep); + return 0; +} + +static int terminate(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_rdma_terminate *term = cplhdr(skb); + struct tid_info *t = dev->rdev.lldi.tids; + unsigned int tid = GET_TID(term); + + ep = lookup_tid(t, tid); + + if (state_read(&ep->com) != FPDU_MODE) + return 0; + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + skb_pull(skb, sizeof *term); + PDBG("%s saving %d bytes of term msg\n", __func__, skb->len); + skb_copy_from_linear_data(skb, ep->com.qp->attr.terminate_buffer, + skb->len); + ep->com.qp->attr.terminate_msg_len = skb->len; + ep->com.qp->attr.is_terminate_local = 0; + return 0; +} + +/* + * Upcall from the adapter indicating data has been transmitted. + * For us its just the single MPA request or reply. We can now free + * the skb holding the mpa message. + */ +static int fw4_ack(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct c4iw_ep *ep; + struct cpl_fw4_ack *hdr = cplhdr(skb); + u8 credits = hdr->credits; + unsigned int tid = GET_TID(hdr); + struct tid_info *t = dev->rdev.lldi.tids; + + + ep = lookup_tid(t, tid); + PDBG("%s ep %p tid %u credits %u\n", __func__, ep, ep->hwtid, credits); + if (credits == 0) { + PDBG(KERN_ERR "%s 0 credit ack ep %p tid %u state %u\n", + __func__, ep, ep->hwtid, state_read(&ep->com)); + return 0; + } + + dst_confirm(ep->dst); + if (ep->mpa_skb) { + PDBG("%s last streaming msg ack ep %p tid %u state %u " + "initiator %u freeing skb\n", __func__, ep, ep->hwtid, + state_read(&ep->com), ep->mpa_attr.initiator ? 1 : 0); + kfree_skb(ep->mpa_skb); + ep->mpa_skb = NULL; + } + return 0; +} + +int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len) +{ + int err; + struct c4iw_ep *ep = to_ep(cm_id); + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + + if (state_read(&ep->com) == DEAD) { + c4iw_put_ep(&ep->com); + return -ECONNRESET; + } + BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD); + if (mpa_rev == 0) + abort_connection(ep, NULL, GFP_KERNEL); + else { + err = send_mpa_reject(ep, pdata, pdata_len); + err = c4iw_ep_disconnect(ep, 0, GFP_KERNEL); + } + c4iw_put_ep(&ep->com); + return 0; +} + +int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) +{ + int err; + struct c4iw_qp_attributes attrs; + enum c4iw_qp_attr_mask mask; + struct c4iw_ep *ep = to_ep(cm_id); + struct c4iw_dev *h = to_c4iw_dev(cm_id->device); + struct c4iw_qp *qp = get_qhp(h, conn_param->qpn); + + PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); + if (state_read(&ep->com) == DEAD) { + err = -ECONNRESET; + goto err; + } + + BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD); + BUG_ON(!qp); + + if ((conn_param->ord > c4iw_max_read_depth) || + (conn_param->ird > c4iw_max_read_depth)) { + abort_connection(ep, NULL, GFP_KERNEL); + err = -EINVAL; + goto err; + } + + cm_id->add_ref(cm_id); + ep->com.cm_id = cm_id; + ep->com.qp = qp; + + ep->ird = conn_param->ird; + ep->ord = conn_param->ord; + + if (peer2peer && ep->ird == 0) + ep->ird = 1; + + PDBG("%s %d ird %d ord %d\n", __func__, __LINE__, ep->ird, ep->ord); + + /* bind QP to EP and move to RTS */ + attrs.mpa_attr = ep->mpa_attr; + attrs.max_ird = ep->ird; + attrs.max_ord = ep->ord; + attrs.llp_stream_handle = ep; + attrs.next_state = C4IW_QP_STATE_RTS; + + /* bind QP and TID with INIT_WR */ + mask = C4IW_QP_ATTR_NEXT_STATE | + C4IW_QP_ATTR_LLP_STREAM_HANDLE | + C4IW_QP_ATTR_MPA_ATTR | + C4IW_QP_ATTR_MAX_IRD | + C4IW_QP_ATTR_MAX_ORD; + + err = c4iw_modify_qp(ep->com.qp->rhp, + ep->com.qp, mask, &attrs, 1); + if (err) + goto err1; + err = send_mpa_reply(ep, conn_param->private_data, + conn_param->private_data_len); + if (err) + goto err1; + + state_set(&ep->com, FPDU_MODE); + established_upcall(ep); + c4iw_put_ep(&ep->com); + return 0; +err1: + ep->com.cm_id = NULL; + ep->com.qp = NULL; + cm_id->rem_ref(cm_id); +err: + c4iw_put_ep(&ep->com); + return err; +} + +int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) +{ + int err = 0; + struct c4iw_dev *dev = to_c4iw_dev(cm_id->device); + struct c4iw_ep *ep; + struct rtable *rt; + struct net_device *pdev; + int step; + + if ((conn_param->ord > c4iw_max_read_depth) || + (conn_param->ird > c4iw_max_read_depth)) { + err = -EINVAL; + goto out; + } + ep = alloc_ep(sizeof(*ep), GFP_KERNEL); + if (!ep) { + printk(KERN_ERR MOD "%s - cannot alloc ep.\n", __func__); + err = -ENOMEM; + goto out; + } + init_timer(&ep->timer); + ep->plen = conn_param->private_data_len; + if (ep->plen) + memcpy(ep->mpa_pkt + sizeof(struct mpa_message), + conn_param->private_data, ep->plen); + ep->ird = conn_param->ird; + ep->ord = conn_param->ord; + + if (peer2peer && ep->ord == 0) + ep->ord = 1; + + cm_id->add_ref(cm_id); + ep->com.dev = dev; + ep->com.cm_id = cm_id; + ep->com.qp = get_qhp(dev, conn_param->qpn); + BUG_ON(!ep->com.qp); + PDBG("%s qpn 0x%x qp %p cm_id %p\n", __func__, conn_param->qpn, + ep->com.qp, cm_id); + + /* + * Allocate an active TID to initiate a TCP connection. + */ + ep->atid = cxgb4_alloc_atid(dev->rdev.lldi.tids, ep); + if (ep->atid == -1) { + printk(KERN_ERR MOD "%s - cannot alloc atid.\n", __func__); + err = -ENOMEM; + goto fail2; + } + + PDBG("%s saddr 0x%x sport 0x%x raddr 0x%x rport 0x%x\n", __func__, + ntohl(cm_id->local_addr.sin_addr.s_addr), + ntohs(cm_id->local_addr.sin_port), + ntohl(cm_id->remote_addr.sin_addr.s_addr), + ntohs(cm_id->remote_addr.sin_port)); + + /* find a route */ + rt = find_route(dev, + cm_id->local_addr.sin_addr.s_addr, + cm_id->remote_addr.sin_addr.s_addr, + cm_id->local_addr.sin_port, + cm_id->remote_addr.sin_port, 0); + if (!rt) { + printk(KERN_ERR MOD "%s - cannot find route.\n", __func__); + err = -EHOSTUNREACH; + goto fail3; + } + ep->dst = &rt->u.dst; + + /* get a l2t entry */ + if (ep->dst->neighbour->dev->flags & IFF_LOOPBACK) { + PDBG("%s LOOPBACK\n", __func__); + pdev = ip_dev_find(&init_net, + cm_id->remote_addr.sin_addr.s_addr); + ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t, + ep->dst->neighbour, + pdev, 0); + ep->mtu = pdev->mtu; + ep->tx_chan = cxgb4_port_chan(pdev); + ep->smac_idx = ep->tx_chan << 1; + step = ep->com.dev->rdev.lldi.ntxq / + ep->com.dev->rdev.lldi.nchan; + ep->txq_idx = cxgb4_port_idx(pdev) * step; + step = ep->com.dev->rdev.lldi.nrxq / + ep->com.dev->rdev.lldi.nchan; + ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[ + cxgb4_port_idx(pdev) * step]; + dev_put(pdev); + } else { + ep->l2t = cxgb4_l2t_get(ep->com.dev->rdev.lldi.l2t, + ep->dst->neighbour, + ep->dst->neighbour->dev, 0); + ep->mtu = dst_mtu(ep->dst); + ep->tx_chan = cxgb4_port_chan(ep->dst->neighbour->dev); + ep->smac_idx = ep->tx_chan << 1; + step = ep->com.dev->rdev.lldi.ntxq / + ep->com.dev->rdev.lldi.nchan; + ep->txq_idx = cxgb4_port_idx(ep->dst->neighbour->dev) * step; + step = ep->com.dev->rdev.lldi.nrxq / + ep->com.dev->rdev.lldi.nchan; + ep->rss_qid = ep->com.dev->rdev.lldi.rxq_ids[ + cxgb4_port_idx(ep->dst->neighbour->dev) * step]; + } + if (!ep->l2t) { + printk(KERN_ERR MOD "%s - cannot alloc l2e.\n", __func__); + err = -ENOMEM; + goto fail4; + } + + PDBG("%s txq_idx %u tx_chan %u smac_idx %u rss_qid %u l2t_idx %u\n", + __func__, ep->txq_idx, ep->tx_chan, ep->smac_idx, ep->rss_qid, + ep->l2t->idx); + + state_set(&ep->com, CONNECTING); + ep->tos = 0; + ep->com.local_addr = cm_id->local_addr; + ep->com.remote_addr = cm_id->remote_addr; + + /* send connect request to rnic */ + err = send_connect(ep); + if (!err) + goto out; + + cxgb4_l2t_release(ep->l2t); +fail4: + dst_release(ep->dst); +fail3: + cxgb4_free_atid(ep->com.dev->rdev.lldi.tids, ep->atid); +fail2: + cm_id->rem_ref(cm_id); + c4iw_put_ep(&ep->com); +out: + return err; +} + +int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog) +{ + int err = 0; + struct c4iw_dev *dev = to_c4iw_dev(cm_id->device); + struct c4iw_listen_ep *ep; + + + might_sleep(); + + ep = alloc_ep(sizeof(*ep), GFP_KERNEL); + if (!ep) { + printk(KERN_ERR MOD "%s - cannot alloc ep.\n", __func__); + err = -ENOMEM; + goto fail1; + } + PDBG("%s ep %p\n", __func__, ep); + cm_id->add_ref(cm_id); + ep->com.cm_id = cm_id; + ep->com.dev = dev; + ep->backlog = backlog; + ep->com.local_addr = cm_id->local_addr; + + /* + * Allocate a server TID. + */ + ep->stid = cxgb4_alloc_stid(dev->rdev.lldi.tids, PF_INET, ep); + if (ep->stid == -1) { + printk(KERN_ERR MOD "%s - cannot alloc stid.\n", __func__); + err = -ENOMEM; + goto fail2; + } + + state_set(&ep->com, LISTEN); + err = cxgb4_create_server(ep->com.dev->rdev.lldi.ports[0], ep->stid, + ep->com.local_addr.sin_addr.s_addr, + ep->com.local_addr.sin_port, + ep->com.dev->rdev.lldi.rxq_ids[0]); + if (err) + goto fail3; + + /* wait for pass_open_rpl */ + wait_event(ep->com.waitq, ep->com.rpl_done); + err = ep->com.rpl_err; + if (!err) { + cm_id->provider_data = ep; + goto out; + } +fail3: + cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid, PF_INET); +fail2: + cm_id->rem_ref(cm_id); + c4iw_put_ep(&ep->com); +fail1: +out: + return err; +} + +int c4iw_destroy_listen(struct iw_cm_id *cm_id) +{ + int err; + struct c4iw_listen_ep *ep = to_listen_ep(cm_id); + + PDBG("%s ep %p\n", __func__, ep); + + might_sleep(); + state_set(&ep->com, DEAD); + ep->com.rpl_done = 0; + ep->com.rpl_err = 0; + err = listen_stop(ep); + if (err) + goto done; + wait_event(ep->com.waitq, ep->com.rpl_done); + cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid, PF_INET); +done: + err = ep->com.rpl_err; + cm_id->rem_ref(cm_id); + c4iw_put_ep(&ep->com); + return err; +} + +int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp) +{ + int ret = 0; + unsigned long flags; + int close = 0; + int fatal = 0; + struct c4iw_rdev *rdev; + int start_timer = 0; + int stop_timer = 0; + + spin_lock_irqsave(&ep->com.lock, flags); + + PDBG("%s ep %p state %s, abrupt %d\n", __func__, ep, + states[ep->com.state], abrupt); + + rdev = &ep->com.dev->rdev; + if (c4iw_fatal_error(rdev)) { + fatal = 1; + close_complete_upcall(ep); + ep->com.state = DEAD; + } + switch (ep->com.state) { + case MPA_REQ_WAIT: + case MPA_REQ_SENT: + case MPA_REQ_RCVD: + case MPA_REP_SENT: + case FPDU_MODE: + close = 1; + if (abrupt) + ep->com.state = ABORTING; + else { + ep->com.state = CLOSING; + start_timer = 1; + } + set_bit(CLOSE_SENT, &ep->com.flags); + break; + case CLOSING: + if (!test_and_set_bit(CLOSE_SENT, &ep->com.flags)) { + close = 1; + if (abrupt) { + stop_timer = 1; + ep->com.state = ABORTING; + } else + ep->com.state = MORIBUND; + } + break; + case MORIBUND: + case ABORTING: + case DEAD: + PDBG("%s ignoring disconnect ep %p state %u\n", + __func__, ep, ep->com.state); + break; + default: + BUG(); + break; + } + + spin_unlock_irqrestore(&ep->com.lock, flags); + if (start_timer) + start_ep_timer(ep); + if (stop_timer) + stop_ep_timer(ep); + if (close) { + if (abrupt) + ret = abort_connection(ep, NULL, gfp); + else + ret = send_halfclose(ep, gfp); + if (ret) + fatal = 1; + } + if (fatal) + release_ep_resources(ep); + return ret; +} + +/* + * These are the real handlers that are called from a + * work queue. + */ +static c4iw_handler_func work_handlers[NUM_CPL_CMDS] = { + [CPL_ACT_ESTABLISH] = act_establish, + [CPL_ACT_OPEN_RPL] = act_open_rpl, + [CPL_RX_DATA] = rx_data, + [CPL_ABORT_RPL_RSS] = abort_rpl, + [CPL_ABORT_RPL] = abort_rpl, + [CPL_PASS_OPEN_RPL] = pass_open_rpl, + [CPL_CLOSE_LISTSRV_RPL] = close_listsrv_rpl, + [CPL_PASS_ACCEPT_REQ] = pass_accept_req, + [CPL_PASS_ESTABLISH] = pass_establish, + [CPL_PEER_CLOSE] = peer_close, + [CPL_ABORT_REQ_RSS] = peer_abort, + [CPL_CLOSE_CON_RPL] = close_con_rpl, + [CPL_RDMA_TERMINATE] = terminate, + [CPL_FW4_ACK] = fw4_ack +}; + +static void process_timeout(struct c4iw_ep *ep) +{ + struct c4iw_qp_attributes attrs; + int abort = 1; + + spin_lock_irq(&ep->com.lock); + PDBG("%s ep %p tid %u state %d\n", __func__, ep, ep->hwtid, + ep->com.state); + switch (ep->com.state) { + case MPA_REQ_SENT: + __state_set(&ep->com, ABORTING); + connect_reply_upcall(ep, -ETIMEDOUT); + break; + case MPA_REQ_WAIT: + __state_set(&ep->com, ABORTING); + break; + case CLOSING: + case MORIBUND: + if (ep->com.cm_id && ep->com.qp) { + attrs.next_state = C4IW_QP_STATE_ERROR; + c4iw_modify_qp(ep->com.qp->rhp, + ep->com.qp, C4IW_QP_ATTR_NEXT_STATE, + &attrs, 1); + } + __state_set(&ep->com, ABORTING); + break; + default: + printk(KERN_ERR "%s unexpected state ep %p tid %u state %u\n", + __func__, ep, ep->hwtid, ep->com.state); + WARN_ON(1); + abort = 0; + } + spin_unlock_irq(&ep->com.lock); + if (abort) + abort_connection(ep, NULL, GFP_KERNEL); + c4iw_put_ep(&ep->com); +} + +static void process_timedout_eps(void) +{ + struct c4iw_ep *ep; + + spin_lock_irq(&timeout_lock); + while (!list_empty(&timeout_list)) { + struct list_head *tmp; + + tmp = timeout_list.next; + list_del(tmp); + spin_unlock_irq(&timeout_lock); + ep = list_entry(tmp, struct c4iw_ep, entry); + process_timeout(ep); + spin_lock_irq(&timeout_lock); + } + spin_unlock_irq(&timeout_lock); +} + +static void process_work(struct work_struct *work) +{ + struct sk_buff *skb = NULL; + struct c4iw_dev *dev; + struct cpl_act_establish *rpl = cplhdr(skb); + unsigned int opcode; + int ret; + + while ((skb = skb_dequeue(&rxq))) { + rpl = cplhdr(skb); + dev = *((struct c4iw_dev **) (skb->cb + sizeof(void *))); + opcode = rpl->ot.opcode; + + BUG_ON(!work_handlers[opcode]); + ret = work_handlers[opcode](dev, skb); + if (!ret) + kfree_skb(skb); + } + process_timedout_eps(); +} + +static DECLARE_WORK(skb_work, process_work); + +static void ep_timeout(unsigned long arg) +{ + struct c4iw_ep *ep = (struct c4iw_ep *)arg; + + spin_lock(&timeout_lock); + list_add_tail(&ep->entry, &timeout_list); + spin_unlock(&timeout_lock); + queue_work(workq, &skb_work); +} + +/* + * All the CM events are handled on a work queue to have a safe context. + */ +static int sched(struct c4iw_dev *dev, struct sk_buff *skb) +{ + + /* + * Save dev in the skb->cb area. + */ + *((struct c4iw_dev **) (skb->cb + sizeof(void *))) = dev; + + /* + * Queue the skb and schedule the worker thread. + */ + skb_queue_tail(&rxq, skb); + queue_work(workq, &skb_work); + return 0; +} + +static int set_tcb_rpl(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct cpl_set_tcb_rpl *rpl = cplhdr(skb); + + if (rpl->status != CPL_ERR_NONE) { + printk(KERN_ERR MOD "Unexpected SET_TCB_RPL status %u " + "for tid %u\n", rpl->status, GET_TID(rpl)); + } + return 0; +} + +static int fw6_msg(struct c4iw_dev *dev, struct sk_buff *skb) +{ + struct cpl_fw6_msg *rpl = cplhdr(skb); + struct c4iw_wr_wait *wr_waitp; + int ret; + + PDBG("%s type %u\n", __func__, rpl->type); + + switch (rpl->type) { + case 1: + ret = (int)((be64_to_cpu(rpl->data[0]) >> 8) & 0xff); + wr_waitp = (__force struct c4iw_wr_wait *)rpl->data[1]; + PDBG("%s wr_waitp %p ret %u\n", __func__, wr_waitp, ret); + if (wr_waitp) { + wr_waitp->ret = ret; + wr_waitp->done = 1; + wake_up(&wr_waitp->wait); + } + break; + case 2: + c4iw_ev_dispatch(dev, (struct t4_cqe *)&rpl->data[0]); + break; + default: + printk(KERN_ERR MOD "%s unexpected fw6 msg type %u\n", __func__, + rpl->type); + break; + } + return 0; +} + +/* + * Most upcalls from the T4 Core go to sched() to + * schedule the processing on a work queue. + */ +c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS] = { + [CPL_ACT_ESTABLISH] = sched, + [CPL_ACT_OPEN_RPL] = sched, + [CPL_RX_DATA] = sched, + [CPL_ABORT_RPL_RSS] = sched, + [CPL_ABORT_RPL] = sched, + [CPL_PASS_OPEN_RPL] = sched, + [CPL_CLOSE_LISTSRV_RPL] = sched, + [CPL_PASS_ACCEPT_REQ] = sched, + [CPL_PASS_ESTABLISH] = sched, + [CPL_PEER_CLOSE] = sched, + [CPL_CLOSE_CON_RPL] = sched, + [CPL_ABORT_REQ_RSS] = sched, + [CPL_RDMA_TERMINATE] = sched, + [CPL_FW4_ACK] = sched, + [CPL_SET_TCB_RPL] = set_tcb_rpl, + [CPL_FW6_MSG] = fw6_msg +}; + +int __init c4iw_cm_init(void) +{ + spin_lock_init(&timeout_lock); + skb_queue_head_init(&rxq); + + workq = create_singlethread_workqueue("iw_cxgb4"); + if (!workq) + return -ENOMEM; + + return 0; +} + +void __exit c4iw_cm_term(void) +{ + WARN_ON(!list_empty(&timeout_list)); + flush_workqueue(workq); + destroy_workqueue(workq); +} diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c new file mode 100644 index 000000000000..fb1aafcc294f --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -0,0 +1,882 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include "iw_cxgb4.h" + +static int destroy_cq(struct c4iw_rdev *rdev, struct t4_cq *cq, + struct c4iw_dev_ucontext *uctx) +{ + struct fw_ri_res_wr *res_wr; + struct fw_ri_res *res; + int wr_len; + struct c4iw_wr_wait wr_wait; + struct sk_buff *skb; + int ret; + + wr_len = sizeof *res_wr + sizeof *res; + skb = alloc_skb(wr_len, GFP_KERNEL | __GFP_NOFAIL); + if (!skb) + return -ENOMEM; + set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0); + + res_wr = (struct fw_ri_res_wr *)__skb_put(skb, wr_len); + memset(res_wr, 0, wr_len); + res_wr->op_nres = cpu_to_be32( + FW_WR_OP(FW_RI_RES_WR) | + V_FW_RI_RES_WR_NRES(1) | + FW_WR_COMPL(1)); + res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16)); + res_wr->cookie = (u64)&wr_wait; + res = res_wr->res; + res->u.cq.restype = FW_RI_RES_TYPE_CQ; + res->u.cq.op = FW_RI_RES_OP_RESET; + res->u.cq.iqid = cpu_to_be32(cq->cqid); + + c4iw_init_wr_wait(&wr_wait); + ret = c4iw_ofld_send(rdev, skb); + if (!ret) { + wait_event_timeout(wr_wait.wait, wr_wait.done, C4IW_WR_TO); + if (!wr_wait.done) { + printk(KERN_ERR MOD "Device %s not responding!\n", + pci_name(rdev->lldi.pdev)); + rdev->flags = T4_FATAL_ERROR; + ret = -EIO; + } else + ret = wr_wait.ret; + } + + kfree(cq->sw_queue); + dma_free_coherent(&(rdev->lldi.pdev->dev), + cq->memsize, cq->queue, + pci_unmap_addr(cq, mapping)); + c4iw_put_cqid(rdev, cq->cqid, uctx); + return ret; +} + +static int create_cq(struct c4iw_rdev *rdev, struct t4_cq *cq, + struct c4iw_dev_ucontext *uctx) +{ + struct fw_ri_res_wr *res_wr; + struct fw_ri_res *res; + int wr_len; + int user = (uctx != &rdev->uctx); + struct c4iw_wr_wait wr_wait; + int ret; + struct sk_buff *skb; + + cq->cqid = c4iw_get_cqid(rdev, uctx); + if (!cq->cqid) { + ret = -ENOMEM; + goto err1; + } + + if (!user) { + cq->sw_queue = kzalloc(cq->memsize, GFP_KERNEL); + if (!cq->sw_queue) { + ret = -ENOMEM; + goto err2; + } + } + cq->queue = dma_alloc_coherent(&rdev->lldi.pdev->dev, cq->memsize, + &cq->dma_addr, GFP_KERNEL); + if (!cq->queue) { + ret = -ENOMEM; + goto err3; + } + pci_unmap_addr_set(cq, mapping, cq->dma_addr); + memset(cq->queue, 0, cq->memsize); + + /* build fw_ri_res_wr */ + wr_len = sizeof *res_wr + sizeof *res; + + skb = alloc_skb(wr_len, GFP_KERNEL | __GFP_NOFAIL); + if (!skb) { + ret = -ENOMEM; + goto err4; + } + set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0); + + res_wr = (struct fw_ri_res_wr *)__skb_put(skb, wr_len); + memset(res_wr, 0, wr_len); + res_wr->op_nres = cpu_to_be32( + FW_WR_OP(FW_RI_RES_WR) | + V_FW_RI_RES_WR_NRES(1) | + FW_WR_COMPL(1)); + res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16)); + res_wr->cookie = (u64)&wr_wait; + res = res_wr->res; + res->u.cq.restype = FW_RI_RES_TYPE_CQ; + res->u.cq.op = FW_RI_RES_OP_WRITE; + res->u.cq.iqid = cpu_to_be32(cq->cqid); + res->u.cq.iqandst_to_iqandstindex = cpu_to_be32( + V_FW_RI_RES_WR_IQANUS(0) | + V_FW_RI_RES_WR_IQANUD(1) | + F_FW_RI_RES_WR_IQANDST | + V_FW_RI_RES_WR_IQANDSTINDEX(*rdev->lldi.rxq_ids)); + res->u.cq.iqdroprss_to_iqesize = cpu_to_be16( + F_FW_RI_RES_WR_IQDROPRSS | + V_FW_RI_RES_WR_IQPCIECH(2) | + V_FW_RI_RES_WR_IQINTCNTTHRESH(0) | + F_FW_RI_RES_WR_IQO | + V_FW_RI_RES_WR_IQESIZE(1)); + res->u.cq.iqsize = cpu_to_be16(cq->size); + res->u.cq.iqaddr = cpu_to_be64(cq->dma_addr); + + c4iw_init_wr_wait(&wr_wait); + + ret = c4iw_ofld_send(rdev, skb); + if (ret) + goto err4; + PDBG("%s wait_event wr_wait %p\n", __func__, &wr_wait); + wait_event_timeout(wr_wait.wait, wr_wait.done, C4IW_WR_TO); + if (!wr_wait.done) { + printk(KERN_ERR MOD "Device %s not responding!\n", + pci_name(rdev->lldi.pdev)); + rdev->flags = T4_FATAL_ERROR; + ret = -EIO; + } else + ret = wr_wait.ret; + if (ret) + goto err4; + + cq->gen = 1; + cq->gts = rdev->lldi.gts_reg; + cq->rdev = rdev; + if (user) { + cq->ugts = (u64)pci_resource_start(rdev->lldi.pdev, 2) + + (cq->cqid << rdev->cqshift); + cq->ugts &= PAGE_MASK; + } + return 0; +err4: + dma_free_coherent(&rdev->lldi.pdev->dev, cq->memsize, cq->queue, + pci_unmap_addr(cq, mapping)); +err3: + kfree(cq->sw_queue); +err2: + c4iw_put_cqid(rdev, cq->cqid, uctx); +err1: + return ret; +} + +static void insert_recv_cqe(struct t4_wq *wq, struct t4_cq *cq) +{ + struct t4_cqe cqe; + + PDBG("%s wq %p cq %p sw_cidx %u sw_pidx %u\n", __func__, + wq, cq, cq->sw_cidx, cq->sw_pidx); + memset(&cqe, 0, sizeof(cqe)); + cqe.header = cpu_to_be32(V_CQE_STATUS(T4_ERR_SWFLUSH) | + V_CQE_OPCODE(FW_RI_SEND) | + V_CQE_TYPE(0) | + V_CQE_SWCQE(1) | + V_CQE_QPID(wq->rq.qid)); + cqe.bits_type_ts = cpu_to_be64(V_CQE_GENBIT((u64)cq->gen)); + cq->sw_queue[cq->sw_pidx] = cqe; + t4_swcq_produce(cq); +} + +int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count) +{ + int flushed = 0; + int in_use = wq->rq.in_use - count; + + BUG_ON(in_use < 0); + PDBG("%s wq %p cq %p rq.in_use %u skip count %u\n", __func__, + wq, cq, wq->rq.in_use, count); + while (in_use--) { + insert_recv_cqe(wq, cq); + flushed++; + } + return flushed; +} + +static void insert_sq_cqe(struct t4_wq *wq, struct t4_cq *cq, + struct t4_swsqe *swcqe) +{ + struct t4_cqe cqe; + + PDBG("%s wq %p cq %p sw_cidx %u sw_pidx %u\n", __func__, + wq, cq, cq->sw_cidx, cq->sw_pidx); + memset(&cqe, 0, sizeof(cqe)); + cqe.header = cpu_to_be32(V_CQE_STATUS(T4_ERR_SWFLUSH) | + V_CQE_OPCODE(swcqe->opcode) | + V_CQE_TYPE(1) | + V_CQE_SWCQE(1) | + V_CQE_QPID(wq->sq.qid)); + CQE_WRID_SQ_IDX(&cqe) = swcqe->idx; + cqe.bits_type_ts = cpu_to_be64(V_CQE_GENBIT((u64)cq->gen)); + cq->sw_queue[cq->sw_pidx] = cqe; + t4_swcq_produce(cq); +} + +int c4iw_flush_sq(struct t4_wq *wq, struct t4_cq *cq, int count) +{ + int flushed = 0; + struct t4_swsqe *swsqe = &wq->sq.sw_sq[wq->sq.cidx + count]; + int in_use = wq->sq.in_use - count; + + BUG_ON(in_use < 0); + while (in_use--) { + swsqe->signaled = 0; + insert_sq_cqe(wq, cq, swsqe); + swsqe++; + if (swsqe == (wq->sq.sw_sq + wq->sq.size)) + swsqe = wq->sq.sw_sq; + flushed++; + } + return flushed; +} + +/* + * Move all CQEs from the HWCQ into the SWCQ. + */ +void c4iw_flush_hw_cq(struct t4_cq *cq) +{ + struct t4_cqe *cqe = NULL, *swcqe; + int ret; + + PDBG("%s cq %p cqid 0x%x\n", __func__, cq, cq->cqid); + ret = t4_next_hw_cqe(cq, &cqe); + while (!ret) { + PDBG("%s flushing hwcq cidx 0x%x swcq pidx 0x%x\n", + __func__, cq->cidx, cq->sw_pidx); + swcqe = &cq->sw_queue[cq->sw_pidx]; + *swcqe = *cqe; + swcqe->header |= cpu_to_be32(V_CQE_SWCQE(1)); + t4_swcq_produce(cq); + t4_hwcq_consume(cq); + ret = t4_next_hw_cqe(cq, &cqe); + } +} + +static int cqe_completes_wr(struct t4_cqe *cqe, struct t4_wq *wq) +{ + if (CQE_OPCODE(cqe) == FW_RI_TERMINATE) + return 0; + + if ((CQE_OPCODE(cqe) == FW_RI_RDMA_WRITE) && RQ_TYPE(cqe)) + return 0; + + if ((CQE_OPCODE(cqe) == FW_RI_READ_RESP) && SQ_TYPE(cqe)) + return 0; + + if (CQE_SEND_OPCODE(cqe) && RQ_TYPE(cqe) && t4_rq_empty(wq)) + return 0; + return 1; +} + +void c4iw_count_scqes(struct t4_cq *cq, struct t4_wq *wq, int *count) +{ + struct t4_cqe *cqe; + u32 ptr; + + *count = 0; + ptr = cq->sw_cidx; + while (ptr != cq->sw_pidx) { + cqe = &cq->sw_queue[ptr]; + if ((SQ_TYPE(cqe) || ((CQE_OPCODE(cqe) == FW_RI_READ_RESP) && + wq->sq.oldest_read)) && + (CQE_QPID(cqe) == wq->sq.qid)) + (*count)++; + if (++ptr == cq->size) + ptr = 0; + } + PDBG("%s cq %p count %d\n", __func__, cq, *count); +} + +void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count) +{ + struct t4_cqe *cqe; + u32 ptr; + + *count = 0; + PDBG("%s count zero %d\n", __func__, *count); + ptr = cq->sw_cidx; + while (ptr != cq->sw_pidx) { + cqe = &cq->sw_queue[ptr]; + if (RQ_TYPE(cqe) && (CQE_OPCODE(cqe) != FW_RI_READ_RESP) && + (CQE_QPID(cqe) == wq->rq.qid) && cqe_completes_wr(cqe, wq)) + (*count)++; + if (++ptr == cq->size) + ptr = 0; + } + PDBG("%s cq %p count %d\n", __func__, cq, *count); +} + +static void flush_completed_wrs(struct t4_wq *wq, struct t4_cq *cq) +{ + struct t4_swsqe *swsqe; + u16 ptr = wq->sq.cidx; + int count = wq->sq.in_use; + int unsignaled = 0; + + swsqe = &wq->sq.sw_sq[ptr]; + while (count--) + if (!swsqe->signaled) { + if (++ptr == wq->sq.size) + ptr = 0; + swsqe = &wq->sq.sw_sq[ptr]; + unsignaled++; + } else if (swsqe->complete) { + + /* + * Insert this completed cqe into the swcq. + */ + PDBG("%s moving cqe into swcq sq idx %u cq idx %u\n", + __func__, ptr, cq->sw_pidx); + swsqe->cqe.header |= htonl(V_CQE_SWCQE(1)); + cq->sw_queue[cq->sw_pidx] = swsqe->cqe; + t4_swcq_produce(cq); + swsqe->signaled = 0; + wq->sq.in_use -= unsignaled; + break; + } else + break; +} + +static void create_read_req_cqe(struct t4_wq *wq, struct t4_cqe *hw_cqe, + struct t4_cqe *read_cqe) +{ + read_cqe->u.scqe.cidx = wq->sq.oldest_read->idx; + read_cqe->len = cpu_to_be32(wq->sq.oldest_read->read_len); + read_cqe->header = htonl(V_CQE_QPID(CQE_QPID(hw_cqe)) | + V_CQE_SWCQE(SW_CQE(hw_cqe)) | + V_CQE_OPCODE(FW_RI_READ_REQ) | + V_CQE_TYPE(1)); +} + +/* + * Return a ptr to the next read wr in the SWSQ or NULL. + */ +static void advance_oldest_read(struct t4_wq *wq) +{ + + u32 rptr = wq->sq.oldest_read - wq->sq.sw_sq + 1; + + if (rptr == wq->sq.size) + rptr = 0; + while (rptr != wq->sq.pidx) { + wq->sq.oldest_read = &wq->sq.sw_sq[rptr]; + + if (wq->sq.oldest_read->opcode == FW_RI_READ_REQ) + return; + if (++rptr == wq->sq.size) + rptr = 0; + } + wq->sq.oldest_read = NULL; +} + +/* + * poll_cq + * + * Caller must: + * check the validity of the first CQE, + * supply the wq assicated with the qpid. + * + * credit: cq credit to return to sge. + * cqe_flushed: 1 iff the CQE is flushed. + * cqe: copy of the polled CQE. + * + * return value: + * 0 CQE returned ok. + * -EAGAIN CQE skipped, try again. + * -EOVERFLOW CQ overflow detected. + */ +static int poll_cq(struct t4_wq *wq, struct t4_cq *cq, struct t4_cqe *cqe, + u8 *cqe_flushed, u64 *cookie, u32 *credit) +{ + int ret = 0; + struct t4_cqe *hw_cqe, read_cqe; + + *cqe_flushed = 0; + *credit = 0; + ret = t4_next_cqe(cq, &hw_cqe); + if (ret) + return ret; + + PDBG("%s CQE OVF %u qpid 0x%0x genbit %u type %u status 0x%0x" + " opcode 0x%0x len 0x%0x wrid_hi_stag 0x%x wrid_low_msn 0x%x\n", + __func__, CQE_OVFBIT(hw_cqe), CQE_QPID(hw_cqe), + CQE_GENBIT(hw_cqe), CQE_TYPE(hw_cqe), CQE_STATUS(hw_cqe), + CQE_OPCODE(hw_cqe), CQE_LEN(hw_cqe), CQE_WRID_HI(hw_cqe), + CQE_WRID_LOW(hw_cqe)); + + /* + * skip cqe's not affiliated with a QP. + */ + if (wq == NULL) { + ret = -EAGAIN; + goto skip_cqe; + } + + /* + * Gotta tweak READ completions: + * 1) the cqe doesn't contain the sq_wptr from the wr. + * 2) opcode not reflected from the wr. + * 3) read_len not reflected from the wr. + * 4) cq_type is RQ_TYPE not SQ_TYPE. + */ + if (RQ_TYPE(hw_cqe) && (CQE_OPCODE(hw_cqe) == FW_RI_READ_RESP)) { + + /* + * If this is an unsolicited read response, then the read + * was generated by the kernel driver as part of peer-2-peer + * connection setup. So ignore the completion. + */ + if (!wq->sq.oldest_read) { + if (CQE_STATUS(hw_cqe)) + t4_set_wq_in_error(wq); + ret = -EAGAIN; + goto skip_cqe; + } + + /* + * Don't write to the HWCQ, so create a new read req CQE + * in local memory. + */ + create_read_req_cqe(wq, hw_cqe, &read_cqe); + hw_cqe = &read_cqe; + advance_oldest_read(wq); + } + + if (CQE_STATUS(hw_cqe) || t4_wq_in_error(wq)) { + *cqe_flushed = t4_wq_in_error(wq); + t4_set_wq_in_error(wq); + goto proc_cqe; + } + + /* + * RECV completion. + */ + if (RQ_TYPE(hw_cqe)) { + + /* + * HW only validates 4 bits of MSN. So we must validate that + * the MSN in the SEND is the next expected MSN. If its not, + * then we complete this with T4_ERR_MSN and mark the wq in + * error. + */ + + if (t4_rq_empty(wq)) { + t4_set_wq_in_error(wq); + ret = -EAGAIN; + goto skip_cqe; + } + if (unlikely((CQE_WRID_MSN(hw_cqe) != (wq->rq.msn)))) { + t4_set_wq_in_error(wq); + hw_cqe->header |= htonl(V_CQE_STATUS(T4_ERR_MSN)); + goto proc_cqe; + } + goto proc_cqe; + } + + /* + * If we get here its a send completion. + * + * Handle out of order completion. These get stuffed + * in the SW SQ. Then the SW SQ is walked to move any + * now in-order completions into the SW CQ. This handles + * 2 cases: + * 1) reaping unsignaled WRs when the first subsequent + * signaled WR is completed. + * 2) out of order read completions. + */ + if (!SW_CQE(hw_cqe) && (CQE_WRID_SQ_IDX(hw_cqe) != wq->sq.cidx)) { + struct t4_swsqe *swsqe; + + PDBG("%s out of order completion going in sw_sq at idx %u\n", + __func__, CQE_WRID_SQ_IDX(hw_cqe)); + swsqe = &wq->sq.sw_sq[CQE_WRID_SQ_IDX(hw_cqe)]; + swsqe->cqe = *hw_cqe; + swsqe->complete = 1; + ret = -EAGAIN; + goto flush_wq; + } + +proc_cqe: + *cqe = *hw_cqe; + + /* + * Reap the associated WR(s) that are freed up with this + * completion. + */ + if (SQ_TYPE(hw_cqe)) { + wq->sq.cidx = CQE_WRID_SQ_IDX(hw_cqe); + PDBG("%s completing sq idx %u\n", __func__, wq->sq.cidx); + *cookie = wq->sq.sw_sq[wq->sq.cidx].wr_id; + t4_sq_consume(wq); + } else { + PDBG("%s completing rq idx %u\n", __func__, wq->rq.cidx); + *cookie = wq->rq.sw_rq[wq->rq.cidx].wr_id; + BUG_ON(t4_rq_empty(wq)); + t4_rq_consume(wq); + } + +flush_wq: + /* + * Flush any completed cqes that are now in-order. + */ + flush_completed_wrs(wq, cq); + +skip_cqe: + if (SW_CQE(hw_cqe)) { + PDBG("%s cq %p cqid 0x%x skip sw cqe cidx %u\n", + __func__, cq, cq->cqid, cq->sw_cidx); + t4_swcq_consume(cq); + } else { + PDBG("%s cq %p cqid 0x%x skip hw cqe cidx %u\n", + __func__, cq, cq->cqid, cq->cidx); + t4_hwcq_consume(cq); + } + return ret; +} + +/* + * Get one cq entry from c4iw and map it to openib. + * + * Returns: + * 0 cqe returned + * -ENODATA EMPTY; + * -EAGAIN caller must try again + * any other -errno fatal error + */ +static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc) +{ + struct c4iw_qp *qhp = NULL; + struct t4_cqe cqe = {0, 0}, *rd_cqe; + struct t4_wq *wq; + u32 credit = 0; + u8 cqe_flushed; + u64 cookie = 0; + int ret; + + ret = t4_next_cqe(&chp->cq, &rd_cqe); + + if (ret) + return ret; + + qhp = get_qhp(chp->rhp, CQE_QPID(rd_cqe)); + if (!qhp) + wq = NULL; + else { + spin_lock(&qhp->lock); + wq = &(qhp->wq); + } + ret = poll_cq(wq, &(chp->cq), &cqe, &cqe_flushed, &cookie, &credit); + if (ret) + goto out; + + wc->wr_id = cookie; + wc->qp = &qhp->ibqp; + wc->vendor_err = CQE_STATUS(&cqe); + wc->wc_flags = 0; + + PDBG("%s qpid 0x%x type %d opcode %d status 0x%x len %u wrid hi 0x%x " + "lo 0x%x cookie 0x%llx\n", __func__, CQE_QPID(&cqe), + CQE_TYPE(&cqe), CQE_OPCODE(&cqe), CQE_STATUS(&cqe), CQE_LEN(&cqe), + CQE_WRID_HI(&cqe), CQE_WRID_LOW(&cqe), (unsigned long long)cookie); + + if (CQE_TYPE(&cqe) == 0) { + if (!CQE_STATUS(&cqe)) + wc->byte_len = CQE_LEN(&cqe); + else + wc->byte_len = 0; + wc->opcode = IB_WC_RECV; + if (CQE_OPCODE(&cqe) == FW_RI_SEND_WITH_INV || + CQE_OPCODE(&cqe) == FW_RI_SEND_WITH_SE_INV) { + wc->ex.invalidate_rkey = CQE_WRID_STAG(&cqe); + wc->wc_flags |= IB_WC_WITH_INVALIDATE; + } + } else { + switch (CQE_OPCODE(&cqe)) { + case FW_RI_RDMA_WRITE: + wc->opcode = IB_WC_RDMA_WRITE; + break; + case FW_RI_READ_REQ: + wc->opcode = IB_WC_RDMA_READ; + wc->byte_len = CQE_LEN(&cqe); + break; + case FW_RI_SEND_WITH_INV: + case FW_RI_SEND_WITH_SE_INV: + wc->opcode = IB_WC_SEND; + wc->wc_flags |= IB_WC_WITH_INVALIDATE; + break; + case FW_RI_SEND: + case FW_RI_SEND_WITH_SE: + wc->opcode = IB_WC_SEND; + break; + case FW_RI_BIND_MW: + wc->opcode = IB_WC_BIND_MW; + break; + + case FW_RI_LOCAL_INV: + wc->opcode = IB_WC_LOCAL_INV; + break; + case FW_RI_FAST_REGISTER: + wc->opcode = IB_WC_FAST_REG_MR; + break; + default: + printk(KERN_ERR MOD "Unexpected opcode %d " + "in the CQE received for QPID=0x%0x\n", + CQE_OPCODE(&cqe), CQE_QPID(&cqe)); + ret = -EINVAL; + goto out; + } + } + + if (cqe_flushed) + wc->status = IB_WC_WR_FLUSH_ERR; + else { + + switch (CQE_STATUS(&cqe)) { + case T4_ERR_SUCCESS: + wc->status = IB_WC_SUCCESS; + break; + case T4_ERR_STAG: + wc->status = IB_WC_LOC_ACCESS_ERR; + break; + case T4_ERR_PDID: + wc->status = IB_WC_LOC_PROT_ERR; + break; + case T4_ERR_QPID: + case T4_ERR_ACCESS: + wc->status = IB_WC_LOC_ACCESS_ERR; + break; + case T4_ERR_WRAP: + wc->status = IB_WC_GENERAL_ERR; + break; + case T4_ERR_BOUND: + wc->status = IB_WC_LOC_LEN_ERR; + break; + case T4_ERR_INVALIDATE_SHARED_MR: + case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND: + wc->status = IB_WC_MW_BIND_ERR; + break; + case T4_ERR_CRC: + case T4_ERR_MARKER: + case T4_ERR_PDU_LEN_ERR: + case T4_ERR_OUT_OF_RQE: + case T4_ERR_DDP_VERSION: + case T4_ERR_RDMA_VERSION: + case T4_ERR_DDP_QUEUE_NUM: + case T4_ERR_MSN: + case T4_ERR_TBIT: + case T4_ERR_MO: + case T4_ERR_MSN_RANGE: + case T4_ERR_IRD_OVERFLOW: + case T4_ERR_OPCODE: + wc->status = IB_WC_FATAL_ERR; + break; + case T4_ERR_SWFLUSH: + wc->status = IB_WC_WR_FLUSH_ERR; + break; + default: + printk(KERN_ERR MOD + "Unexpected cqe_status 0x%x for QPID=0x%0x\n", + CQE_STATUS(&cqe), CQE_QPID(&cqe)); + ret = -EINVAL; + } + } +out: + if (wq) + spin_unlock(&qhp->lock); + return ret; +} + +int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc) +{ + struct c4iw_cq *chp; + unsigned long flags; + int npolled; + int err = 0; + + chp = to_c4iw_cq(ibcq); + + spin_lock_irqsave(&chp->lock, flags); + for (npolled = 0; npolled < num_entries; ++npolled) { + do { + err = c4iw_poll_cq_one(chp, wc + npolled); + } while (err == -EAGAIN); + if (err) + break; + } + spin_unlock_irqrestore(&chp->lock, flags); + return !err || err == -ENODATA ? npolled : err; +} + +int c4iw_destroy_cq(struct ib_cq *ib_cq) +{ + struct c4iw_cq *chp; + struct c4iw_ucontext *ucontext; + + PDBG("%s ib_cq %p\n", __func__, ib_cq); + chp = to_c4iw_cq(ib_cq); + + remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid); + atomic_dec(&chp->refcnt); + wait_event(chp->wait, !atomic_read(&chp->refcnt)); + + ucontext = ib_cq->uobject ? to_c4iw_ucontext(ib_cq->uobject->context) + : NULL; + destroy_cq(&chp->rhp->rdev, &chp->cq, + ucontext ? &ucontext->uctx : &chp->cq.rdev->uctx); + kfree(chp); + return 0; +} + +struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries, + int vector, struct ib_ucontext *ib_context, + struct ib_udata *udata) +{ + struct c4iw_dev *rhp; + struct c4iw_cq *chp; + struct c4iw_create_cq_resp uresp; + struct c4iw_ucontext *ucontext = NULL; + int ret; + size_t memsize; + struct c4iw_mm_entry *mm, *mm2; + + PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries); + + rhp = to_c4iw_dev(ibdev); + + chp = kzalloc(sizeof(*chp), GFP_KERNEL); + if (!chp) + return ERR_PTR(-ENOMEM); + + if (ib_context) + ucontext = to_c4iw_ucontext(ib_context); + + /* account for the status page. */ + entries++; + + /* + * entries must be multiple of 16 for HW. + */ + entries = roundup(entries, 16); + memsize = entries * sizeof *chp->cq.queue; + + /* + * memsize must be a multiple of the page size if its a user cq. + */ + if (ucontext) + memsize = roundup(memsize, PAGE_SIZE); + chp->cq.size = entries; + chp->cq.memsize = memsize; + + ret = create_cq(&rhp->rdev, &chp->cq, + ucontext ? &ucontext->uctx : &rhp->rdev.uctx); + if (ret) + goto err1; + + chp->rhp = rhp; + chp->cq.size--; /* status page */ + chp->ibcq.cqe = chp->cq.size; + spin_lock_init(&chp->lock); + atomic_set(&chp->refcnt, 1); + init_waitqueue_head(&chp->wait); + ret = insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid); + if (ret) + goto err2; + + if (ucontext) { + mm = kmalloc(sizeof *mm, GFP_KERNEL); + if (!mm) + goto err3; + mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); + if (!mm2) + goto err4; + + uresp.qid_mask = rhp->rdev.cqmask; + uresp.cqid = chp->cq.cqid; + uresp.size = chp->cq.size; + uresp.memsize = chp->cq.memsize; + spin_lock(&ucontext->mmap_lock); + uresp.key = ucontext->key; + ucontext->key += PAGE_SIZE; + uresp.gts_key = ucontext->key; + ucontext->key += PAGE_SIZE; + spin_unlock(&ucontext->mmap_lock); + ret = ib_copy_to_udata(udata, &uresp, sizeof uresp); + if (ret) + goto err5; + + mm->key = uresp.key; + mm->addr = virt_to_phys(chp->cq.queue); + mm->len = chp->cq.memsize; + insert_mmap(ucontext, mm); + + mm2->key = uresp.gts_key; + mm2->addr = chp->cq.ugts; + mm2->len = PAGE_SIZE; + insert_mmap(ucontext, mm2); + } + PDBG("%s cqid 0x%0x chp %p size %u memsize %zu, dma_addr 0x%0llx\n", + __func__, chp->cq.cqid, chp, chp->cq.size, + chp->cq.memsize, + (unsigned long long) chp->cq.dma_addr); + return &chp->ibcq; +err5: + kfree(mm2); +err4: + kfree(mm); +err3: + remove_handle(rhp, &rhp->cqidr, chp->cq.cqid); +err2: + destroy_cq(&chp->rhp->rdev, &chp->cq, + ucontext ? &ucontext->uctx : &rhp->rdev.uctx); +err1: + kfree(chp); + return ERR_PTR(ret); +} + +int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata) +{ + return -ENOSYS; +} + +int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags) +{ + struct c4iw_cq *chp; + int ret; + unsigned long flag; + + chp = to_c4iw_cq(ibcq); + spin_lock_irqsave(&chp->lock, flag); + ret = t4_arm_cq(&chp->cq, + (flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED); + spin_unlock_irqrestore(&chp->lock, flag); + if (ret && !(flags & IB_CQ_REPORT_MISSED_EVENTS)) + ret = 0; + return ret; +} diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c new file mode 100644 index 000000000000..be23b5eab13b --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/device.c @@ -0,0 +1,520 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/debugfs.h> + +#include <rdma/ib_verbs.h> + +#include "iw_cxgb4.h" + +#define DRV_VERSION "0.1" + +MODULE_AUTHOR("Steve Wise"); +MODULE_DESCRIPTION("Chelsio T4 RDMA Driver"); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_VERSION(DRV_VERSION); + +static LIST_HEAD(dev_list); +static DEFINE_MUTEX(dev_mutex); + +static struct dentry *c4iw_debugfs_root; + +struct debugfs_qp_data { + struct c4iw_dev *devp; + char *buf; + int bufsize; + int pos; +}; + +static int count_qps(int id, void *p, void *data) +{ + struct c4iw_qp *qp = p; + int *countp = data; + + if (id != qp->wq.sq.qid) + return 0; + + *countp = *countp + 1; + return 0; +} + +static int dump_qps(int id, void *p, void *data) +{ + struct c4iw_qp *qp = p; + struct debugfs_qp_data *qpd = data; + int space; + int cc; + + if (id != qp->wq.sq.qid) + return 0; + + space = qpd->bufsize - qpd->pos - 1; + if (space == 0) + return 1; + + if (qp->ep) + cc = snprintf(qpd->buf + qpd->pos, space, "qp id %u state %u " + "ep tid %u state %u %pI4:%u->%pI4:%u\n", + qp->wq.sq.qid, (int)qp->attr.state, + qp->ep->hwtid, (int)qp->ep->com.state, + &qp->ep->com.local_addr.sin_addr.s_addr, + ntohs(qp->ep->com.local_addr.sin_port), + &qp->ep->com.remote_addr.sin_addr.s_addr, + ntohs(qp->ep->com.remote_addr.sin_port)); + else + cc = snprintf(qpd->buf + qpd->pos, space, "qp id %u state %u\n", + qp->wq.sq.qid, (int)qp->attr.state); + if (cc < space) + qpd->pos += cc; + return 0; +} + +static int qp_release(struct inode *inode, struct file *file) +{ + struct debugfs_qp_data *qpd = file->private_data; + if (!qpd) { + printk(KERN_INFO "%s null qpd?\n", __func__); + return 0; + } + kfree(qpd->buf); + kfree(qpd); + return 0; +} + +static int qp_open(struct inode *inode, struct file *file) +{ + struct debugfs_qp_data *qpd; + int ret = 0; + int count = 1; + + qpd = kmalloc(sizeof *qpd, GFP_KERNEL); + if (!qpd) { + ret = -ENOMEM; + goto out; + } + qpd->devp = inode->i_private; + qpd->pos = 0; + + spin_lock_irq(&qpd->devp->lock); + idr_for_each(&qpd->devp->qpidr, count_qps, &count); + spin_unlock_irq(&qpd->devp->lock); + + qpd->bufsize = count * 128; + qpd->buf = kmalloc(qpd->bufsize, GFP_KERNEL); + if (!qpd->buf) { + ret = -ENOMEM; + goto err1; + } + + spin_lock_irq(&qpd->devp->lock); + idr_for_each(&qpd->devp->qpidr, dump_qps, qpd); + spin_unlock_irq(&qpd->devp->lock); + + qpd->buf[qpd->pos++] = 0; + file->private_data = qpd; + goto out; +err1: + kfree(qpd); +out: + return ret; +} + +static ssize_t qp_read(struct file *file, char __user *buf, size_t count, + loff_t *ppos) +{ + struct debugfs_qp_data *qpd = file->private_data; + loff_t pos = *ppos; + loff_t avail = qpd->pos; + + if (pos < 0) + return -EINVAL; + if (pos >= avail) + return 0; + if (count > avail - pos) + count = avail - pos; + + while (count) { + size_t len = 0; + + len = min((int)count, (int)qpd->pos - (int)pos); + if (copy_to_user(buf, qpd->buf + pos, len)) + return -EFAULT; + if (len == 0) + return -EINVAL; + + buf += len; + pos += len; + count -= len; + } + count = pos - *ppos; + *ppos = pos; + return count; +} + +static const struct file_operations qp_debugfs_fops = { + .owner = THIS_MODULE, + .open = qp_open, + .release = qp_release, + .read = qp_read, +}; + +static int setup_debugfs(struct c4iw_dev *devp) +{ + struct dentry *de; + + if (!devp->debugfs_root) + return -1; + + de = debugfs_create_file("qps", S_IWUSR, devp->debugfs_root, + (void *)devp, &qp_debugfs_fops); + if (de && de->d_inode) + de->d_inode->i_size = 4096; + return 0; +} + +void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev, + struct c4iw_dev_ucontext *uctx) +{ + struct list_head *pos, *nxt; + struct c4iw_qid_list *entry; + + mutex_lock(&uctx->lock); + list_for_each_safe(pos, nxt, &uctx->qpids) { + entry = list_entry(pos, struct c4iw_qid_list, entry); + list_del_init(&entry->entry); + if (!(entry->qid & rdev->qpmask)) + c4iw_put_resource(&rdev->resource.qid_fifo, entry->qid, + &rdev->resource.qid_fifo_lock); + kfree(entry); + } + + list_for_each_safe(pos, nxt, &uctx->qpids) { + entry = list_entry(pos, struct c4iw_qid_list, entry); + list_del_init(&entry->entry); + kfree(entry); + } + mutex_unlock(&uctx->lock); +} + +void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev, + struct c4iw_dev_ucontext *uctx) +{ + INIT_LIST_HEAD(&uctx->qpids); + INIT_LIST_HEAD(&uctx->cqids); + mutex_init(&uctx->lock); +} + +/* Caller takes care of locking if needed */ +static int c4iw_rdev_open(struct c4iw_rdev *rdev) +{ + int err; + + c4iw_init_dev_ucontext(rdev, &rdev->uctx); + + /* + * qpshift is the number of bits to shift the qpid left in order + * to get the correct address of the doorbell for that qp. + */ + rdev->qpshift = PAGE_SHIFT - ilog2(rdev->lldi.udb_density); + rdev->qpmask = rdev->lldi.udb_density - 1; + rdev->cqshift = PAGE_SHIFT - ilog2(rdev->lldi.ucq_density); + rdev->cqmask = rdev->lldi.ucq_density - 1; + PDBG("%s dev %s stag start 0x%0x size 0x%0x num stags %d " + "pbl start 0x%0x size 0x%0x rq start 0x%0x size 0x%0x\n", + __func__, pci_name(rdev->lldi.pdev), rdev->lldi.vr->stag.start, + rdev->lldi.vr->stag.size, c4iw_num_stags(rdev), + rdev->lldi.vr->pbl.start, + rdev->lldi.vr->pbl.size, rdev->lldi.vr->rq.start, + rdev->lldi.vr->rq.size); + PDBG("udb len 0x%x udb base %p db_reg %p gts_reg %p qpshift %lu " + "qpmask 0x%x cqshift %lu cqmask 0x%x\n", + (unsigned)pci_resource_len(rdev->lldi.pdev, 2), + (void *)pci_resource_start(rdev->lldi.pdev, 2), + rdev->lldi.db_reg, + rdev->lldi.gts_reg, + rdev->qpshift, rdev->qpmask, + rdev->cqshift, rdev->cqmask); + + if (c4iw_num_stags(rdev) == 0) { + err = -EINVAL; + goto err1; + } + + err = c4iw_init_resource(rdev, c4iw_num_stags(rdev), T4_MAX_NUM_PD); + if (err) { + printk(KERN_ERR MOD "error %d initializing resources\n", err); + goto err1; + } + err = c4iw_pblpool_create(rdev); + if (err) { + printk(KERN_ERR MOD "error %d initializing pbl pool\n", err); + goto err2; + } + err = c4iw_rqtpool_create(rdev); + if (err) { + printk(KERN_ERR MOD "error %d initializing rqt pool\n", err); + goto err3; + } + return 0; +err3: + c4iw_pblpool_destroy(rdev); +err2: + c4iw_destroy_resource(&rdev->resource); +err1: + return err; +} + +static void c4iw_rdev_close(struct c4iw_rdev *rdev) +{ + c4iw_pblpool_destroy(rdev); + c4iw_rqtpool_destroy(rdev); + c4iw_destroy_resource(&rdev->resource); +} + +static void c4iw_remove(struct c4iw_dev *dev) +{ + PDBG("%s c4iw_dev %p\n", __func__, dev); + cancel_delayed_work_sync(&dev->db_drop_task); + list_del(&dev->entry); + c4iw_unregister_device(dev); + c4iw_rdev_close(&dev->rdev); + idr_destroy(&dev->cqidr); + idr_destroy(&dev->qpidr); + idr_destroy(&dev->mmidr); + ib_dealloc_device(&dev->ibdev); +} + +static struct c4iw_dev *c4iw_alloc(const struct cxgb4_lld_info *infop) +{ + struct c4iw_dev *devp; + int ret; + + devp = (struct c4iw_dev *)ib_alloc_device(sizeof(*devp)); + if (!devp) { + printk(KERN_ERR MOD "Cannot allocate ib device\n"); + return NULL; + } + devp->rdev.lldi = *infop; + + mutex_lock(&dev_mutex); + + ret = c4iw_rdev_open(&devp->rdev); + if (ret) { + mutex_unlock(&dev_mutex); + printk(KERN_ERR MOD "Unable to open CXIO rdev err %d\n", ret); + ib_dealloc_device(&devp->ibdev); + return NULL; + } + + idr_init(&devp->cqidr); + idr_init(&devp->qpidr); + idr_init(&devp->mmidr); + spin_lock_init(&devp->lock); + list_add_tail(&devp->entry, &dev_list); + mutex_unlock(&dev_mutex); + + if (c4iw_register_device(devp)) { + printk(KERN_ERR MOD "Unable to register device\n"); + mutex_lock(&dev_mutex); + c4iw_remove(devp); + mutex_unlock(&dev_mutex); + } + if (c4iw_debugfs_root) { + devp->debugfs_root = debugfs_create_dir( + pci_name(devp->rdev.lldi.pdev), + c4iw_debugfs_root); + setup_debugfs(devp); + } + return devp; +} + +static void *c4iw_uld_add(const struct cxgb4_lld_info *infop) +{ + struct c4iw_dev *dev; + static int vers_printed; + int i; + + if (!vers_printed++) + printk(KERN_INFO MOD "Chelsio T4 RDMA Driver - version %s\n", + DRV_VERSION); + + dev = c4iw_alloc(infop); + if (!dev) + goto out; + + PDBG("%s found device %s nchan %u nrxq %u ntxq %u nports %u\n", + __func__, pci_name(dev->rdev.lldi.pdev), + dev->rdev.lldi.nchan, dev->rdev.lldi.nrxq, + dev->rdev.lldi.ntxq, dev->rdev.lldi.nports); + + for (i = 0; i < dev->rdev.lldi.nrxq; i++) + PDBG("rxqid[%u] %u\n", i, dev->rdev.lldi.rxq_ids[i]); + + printk(KERN_INFO MOD "Initialized device %s\n", + pci_name(dev->rdev.lldi.pdev)); +out: + return dev; +} + +static struct sk_buff *t4_pktgl_to_skb(const struct pkt_gl *gl, + unsigned int skb_len, + unsigned int pull_len) +{ + struct sk_buff *skb; + struct skb_shared_info *ssi; + + if (gl->tot_len <= 512) { + skb = alloc_skb(gl->tot_len, GFP_ATOMIC); + if (unlikely(!skb)) + goto out; + __skb_put(skb, gl->tot_len); + skb_copy_to_linear_data(skb, gl->va, gl->tot_len); + } else { + skb = alloc_skb(skb_len, GFP_ATOMIC); + if (unlikely(!skb)) + goto out; + __skb_put(skb, pull_len); + skb_copy_to_linear_data(skb, gl->va, pull_len); + + ssi = skb_shinfo(skb); + ssi->frags[0].page = gl->frags[0].page; + ssi->frags[0].page_offset = gl->frags[0].page_offset + pull_len; + ssi->frags[0].size = gl->frags[0].size - pull_len; + if (gl->nfrags > 1) + memcpy(&ssi->frags[1], &gl->frags[1], + (gl->nfrags - 1) * sizeof(skb_frag_t)); + ssi->nr_frags = gl->nfrags; + + skb->len = gl->tot_len; + skb->data_len = skb->len - pull_len; + skb->truesize += skb->data_len; + + /* Get a reference for the last page, we don't own it */ + get_page(gl->frags[gl->nfrags - 1].page); + } +out: + return skb; +} + +static int c4iw_uld_rx_handler(void *handle, const __be64 *rsp, + const struct pkt_gl *gl) +{ + struct c4iw_dev *dev = handle; + struct sk_buff *skb; + const struct cpl_act_establish *rpl; + unsigned int opcode; + + if (gl == NULL) { + /* omit RSS and rsp_ctrl at end of descriptor */ + unsigned int len = 64 - sizeof(struct rsp_ctrl) - 8; + + skb = alloc_skb(256, GFP_ATOMIC); + if (!skb) + goto nomem; + __skb_put(skb, len); + skb_copy_to_linear_data(skb, &rsp[1], len); + } else if (gl == CXGB4_MSG_AN) { + const struct rsp_ctrl *rc = (void *)rsp; + + u32 qid = be32_to_cpu(rc->pldbuflen_qid); + c4iw_ev_handler(dev, qid); + return 0; + } else { + skb = t4_pktgl_to_skb(gl, 128, 128); + if (unlikely(!skb)) + goto nomem; + } + + rpl = cplhdr(skb); + opcode = rpl->ot.opcode; + + if (c4iw_handlers[opcode]) + c4iw_handlers[opcode](dev, skb); + else + printk(KERN_INFO "%s no handler opcode 0x%x...\n", __func__, + opcode); + + return 0; +nomem: + return -1; +} + +static int c4iw_uld_state_change(void *handle, enum cxgb4_state new_state) +{ + PDBG("%s new_state %u\n", __func__, new_state); + return 0; +} + +static struct cxgb4_uld_info c4iw_uld_info = { + .name = DRV_NAME, + .add = c4iw_uld_add, + .rx_handler = c4iw_uld_rx_handler, + .state_change = c4iw_uld_state_change, +}; + +static int __init c4iw_init_module(void) +{ + int err; + + err = c4iw_cm_init(); + if (err) + return err; + + c4iw_debugfs_root = debugfs_create_dir(DRV_NAME, NULL); + if (!c4iw_debugfs_root) + printk(KERN_WARNING MOD + "could not create debugfs entry, continuing\n"); + + cxgb4_register_uld(CXGB4_ULD_RDMA, &c4iw_uld_info); + + return 0; +} + +static void __exit c4iw_exit_module(void) +{ + struct c4iw_dev *dev, *tmp; + + cxgb4_unregister_uld(CXGB4_ULD_RDMA); + + mutex_lock(&dev_mutex); + list_for_each_entry_safe(dev, tmp, &dev_list, entry) { + c4iw_remove(dev); + } + mutex_unlock(&dev_mutex); + + c4iw_cm_term(); + debugfs_remove_recursive(c4iw_debugfs_root); +} + +module_init(c4iw_init_module); +module_exit(c4iw_exit_module); diff --git a/drivers/infiniband/hw/cxgb4/ev.c b/drivers/infiniband/hw/cxgb4/ev.c new file mode 100644 index 000000000000..491e76a0327f --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/ev.c @@ -0,0 +1,193 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/slab.h> +#include <linux/mman.h> +#include <net/sock.h> + +#include "iw_cxgb4.h" + +static void post_qp_event(struct c4iw_dev *dev, struct c4iw_cq *chp, + struct c4iw_qp *qhp, + struct t4_cqe *err_cqe, + enum ib_event_type ib_event) +{ + struct ib_event event; + struct c4iw_qp_attributes attrs; + + if ((qhp->attr.state == C4IW_QP_STATE_ERROR) || + (qhp->attr.state == C4IW_QP_STATE_TERMINATE)) { + PDBG("%s AE received after RTS - " + "qp state %d qpid 0x%x status 0x%x\n", __func__, + qhp->attr.state, qhp->wq.sq.qid, CQE_STATUS(err_cqe)); + return; + } + + printk(KERN_ERR MOD "AE qpid 0x%x opcode %d status 0x%x " + "type %d wrid.hi 0x%x wrid.lo 0x%x\n", + CQE_QPID(err_cqe), CQE_OPCODE(err_cqe), + CQE_STATUS(err_cqe), CQE_TYPE(err_cqe), + CQE_WRID_HI(err_cqe), CQE_WRID_LOW(err_cqe)); + + if (qhp->attr.state == C4IW_QP_STATE_RTS) { + attrs.next_state = C4IW_QP_STATE_TERMINATE; + c4iw_modify_qp(qhp->rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, + &attrs, 1); + } + + event.event = ib_event; + event.device = chp->ibcq.device; + if (ib_event == IB_EVENT_CQ_ERR) + event.element.cq = &chp->ibcq; + else + event.element.qp = &qhp->ibqp; + if (qhp->ibqp.event_handler) + (*qhp->ibqp.event_handler)(&event, qhp->ibqp.qp_context); + + (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context); +} + +void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe) +{ + struct c4iw_cq *chp; + struct c4iw_qp *qhp; + u32 cqid; + + spin_lock(&dev->lock); + qhp = get_qhp(dev, CQE_QPID(err_cqe)); + if (!qhp) { + printk(KERN_ERR MOD "BAD AE qpid 0x%x opcode %d " + "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n", + CQE_QPID(err_cqe), + CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe), + CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe), + CQE_WRID_LOW(err_cqe)); + spin_unlock(&dev->lock); + goto out; + } + + if (SQ_TYPE(err_cqe)) + cqid = qhp->attr.scq; + else + cqid = qhp->attr.rcq; + chp = get_chp(dev, cqid); + if (!chp) { + printk(KERN_ERR MOD "BAD AE cqid 0x%x qpid 0x%x opcode %d " + "status 0x%x type %d wrid.hi 0x%x wrid.lo 0x%x\n", + cqid, CQE_QPID(err_cqe), + CQE_OPCODE(err_cqe), CQE_STATUS(err_cqe), + CQE_TYPE(err_cqe), CQE_WRID_HI(err_cqe), + CQE_WRID_LOW(err_cqe)); + spin_unlock(&dev->lock); + goto out; + } + + c4iw_qp_add_ref(&qhp->ibqp); + atomic_inc(&chp->refcnt); + spin_unlock(&dev->lock); + + /* Bad incoming write */ + if (RQ_TYPE(err_cqe) && + (CQE_OPCODE(err_cqe) == FW_RI_RDMA_WRITE)) { + post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_REQ_ERR); + goto done; + } + + switch (CQE_STATUS(err_cqe)) { + + /* Completion Events */ + case T4_ERR_SUCCESS: + printk(KERN_ERR MOD "AE with status 0!\n"); + break; + + case T4_ERR_STAG: + case T4_ERR_PDID: + case T4_ERR_QPID: + case T4_ERR_ACCESS: + case T4_ERR_WRAP: + case T4_ERR_BOUND: + case T4_ERR_INVALIDATE_SHARED_MR: + case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND: + post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_ACCESS_ERR); + break; + + /* Device Fatal Errors */ + case T4_ERR_ECC: + case T4_ERR_ECC_PSTAG: + case T4_ERR_INTERNAL_ERR: + post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_DEVICE_FATAL); + break; + + /* QP Fatal Errors */ + case T4_ERR_OUT_OF_RQE: + case T4_ERR_PBL_ADDR_BOUND: + case T4_ERR_CRC: + case T4_ERR_MARKER: + case T4_ERR_PDU_LEN_ERR: + case T4_ERR_DDP_VERSION: + case T4_ERR_RDMA_VERSION: + case T4_ERR_OPCODE: + case T4_ERR_DDP_QUEUE_NUM: + case T4_ERR_MSN: + case T4_ERR_TBIT: + case T4_ERR_MO: + case T4_ERR_MSN_GAP: + case T4_ERR_MSN_RANGE: + case T4_ERR_RQE_ADDR_BOUND: + case T4_ERR_IRD_OVERFLOW: + post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL); + break; + + default: + printk(KERN_ERR MOD "Unknown T4 status 0x%x QPID 0x%x\n", + CQE_STATUS(err_cqe), qhp->wq.sq.qid); + post_qp_event(dev, chp, qhp, err_cqe, IB_EVENT_QP_FATAL); + break; + } +done: + if (atomic_dec_and_test(&chp->refcnt)) + wake_up(&chp->wait); + c4iw_qp_rem_ref(&qhp->ibqp); +out: + return; +} + +int c4iw_ev_handler(struct c4iw_dev *dev, u32 qid) +{ + struct c4iw_cq *chp; + + chp = get_chp(dev, qid); + if (chp) + (*chp->ibcq.comp_handler)(&chp->ibcq, chp->ibcq.cq_context); + else + PDBG("%s unknown cqid 0x%x\n", __func__, qid); + return 0; +} diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h new file mode 100644 index 000000000000..a6269981e815 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -0,0 +1,745 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef __IW_CXGB4_H__ +#define __IW_CXGB4_H__ + +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/idr.h> +#include <linux/workqueue.h> +#include <linux/netdevice.h> +#include <linux/sched.h> +#include <linux/pci.h> +#include <linux/dma-mapping.h> +#include <linux/inet.h> +#include <linux/wait.h> +#include <linux/kref.h> +#include <linux/timer.h> +#include <linux/io.h> +#include <linux/kfifo.h> + +#include <asm/byteorder.h> + +#include <net/net_namespace.h> + +#include <rdma/ib_verbs.h> +#include <rdma/iw_cm.h> + +#include "cxgb4.h" +#include "cxgb4_uld.h" +#include "l2t.h" +#include "user.h" + +#define DRV_NAME "iw_cxgb4" +#define MOD DRV_NAME ":" + +extern int c4iw_debug; +#define PDBG(fmt, args...) \ +do { \ + if (c4iw_debug) \ + printk(MOD fmt, ## args); \ +} while (0) + +#include "t4.h" + +#define PBL_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->pbl.start) +#define RQT_OFF(rdev_p, a) ((a) - (rdev_p)->lldi.vr->rq.start) + +static inline void *cplhdr(struct sk_buff *skb) +{ + return skb->data; +} + +#define C4IW_WR_TO (10*HZ) + +struct c4iw_wr_wait { + wait_queue_head_t wait; + int done; + int ret; +}; + +static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp) +{ + wr_waitp->ret = 0; + wr_waitp->done = 0; + init_waitqueue_head(&wr_waitp->wait); +} + +struct c4iw_resource { + struct kfifo tpt_fifo; + spinlock_t tpt_fifo_lock; + struct kfifo qid_fifo; + spinlock_t qid_fifo_lock; + struct kfifo pdid_fifo; + spinlock_t pdid_fifo_lock; +}; + +struct c4iw_qid_list { + struct list_head entry; + u32 qid; +}; + +struct c4iw_dev_ucontext { + struct list_head qpids; + struct list_head cqids; + struct mutex lock; +}; + +enum c4iw_rdev_flags { + T4_FATAL_ERROR = (1<<0), +}; + +struct c4iw_rdev { + struct c4iw_resource resource; + unsigned long qpshift; + u32 qpmask; + unsigned long cqshift; + u32 cqmask; + struct c4iw_dev_ucontext uctx; + struct gen_pool *pbl_pool; + struct gen_pool *rqt_pool; + u32 flags; + struct cxgb4_lld_info lldi; +}; + +static inline int c4iw_fatal_error(struct c4iw_rdev *rdev) +{ + return rdev->flags & T4_FATAL_ERROR; +} + +static inline int c4iw_num_stags(struct c4iw_rdev *rdev) +{ + return min((int)T4_MAX_NUM_STAG, (int)(rdev->lldi.vr->stag.size >> 5)); +} + +struct c4iw_dev { + struct ib_device ibdev; + struct c4iw_rdev rdev; + u32 device_cap_flags; + struct idr cqidr; + struct idr qpidr; + struct idr mmidr; + spinlock_t lock; + struct list_head entry; + struct delayed_work db_drop_task; + struct dentry *debugfs_root; +}; + +static inline struct c4iw_dev *to_c4iw_dev(struct ib_device *ibdev) +{ + return container_of(ibdev, struct c4iw_dev, ibdev); +} + +static inline struct c4iw_dev *rdev_to_c4iw_dev(struct c4iw_rdev *rdev) +{ + return container_of(rdev, struct c4iw_dev, rdev); +} + +static inline struct c4iw_cq *get_chp(struct c4iw_dev *rhp, u32 cqid) +{ + return idr_find(&rhp->cqidr, cqid); +} + +static inline struct c4iw_qp *get_qhp(struct c4iw_dev *rhp, u32 qpid) +{ + return idr_find(&rhp->qpidr, qpid); +} + +static inline struct c4iw_mr *get_mhp(struct c4iw_dev *rhp, u32 mmid) +{ + return idr_find(&rhp->mmidr, mmid); +} + +static inline int insert_handle(struct c4iw_dev *rhp, struct idr *idr, + void *handle, u32 id) +{ + int ret; + int newid; + + do { + if (!idr_pre_get(idr, GFP_KERNEL)) + return -ENOMEM; + spin_lock_irq(&rhp->lock); + ret = idr_get_new_above(idr, handle, id, &newid); + BUG_ON(newid != id); + spin_unlock_irq(&rhp->lock); + } while (ret == -EAGAIN); + + return ret; +} + +static inline void remove_handle(struct c4iw_dev *rhp, struct idr *idr, u32 id) +{ + spin_lock_irq(&rhp->lock); + idr_remove(idr, id); + spin_unlock_irq(&rhp->lock); +} + +struct c4iw_pd { + struct ib_pd ibpd; + u32 pdid; + struct c4iw_dev *rhp; +}; + +static inline struct c4iw_pd *to_c4iw_pd(struct ib_pd *ibpd) +{ + return container_of(ibpd, struct c4iw_pd, ibpd); +} + +struct tpt_attributes { + u64 len; + u64 va_fbo; + enum fw_ri_mem_perms perms; + u32 stag; + u32 pdid; + u32 qpid; + u32 pbl_addr; + u32 pbl_size; + u32 state:1; + u32 type:2; + u32 rsvd:1; + u32 remote_invaliate_disable:1; + u32 zbva:1; + u32 mw_bind_enable:1; + u32 page_size:5; +}; + +struct c4iw_mr { + struct ib_mr ibmr; + struct ib_umem *umem; + struct c4iw_dev *rhp; + u64 kva; + struct tpt_attributes attr; +}; + +static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr) +{ + return container_of(ibmr, struct c4iw_mr, ibmr); +} + +struct c4iw_mw { + struct ib_mw ibmw; + struct c4iw_dev *rhp; + u64 kva; + struct tpt_attributes attr; +}; + +static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw) +{ + return container_of(ibmw, struct c4iw_mw, ibmw); +} + +struct c4iw_fr_page_list { + struct ib_fast_reg_page_list ibpl; + DECLARE_PCI_UNMAP_ADDR(mapping); + dma_addr_t dma_addr; + struct c4iw_dev *dev; + int size; +}; + +static inline struct c4iw_fr_page_list *to_c4iw_fr_page_list( + struct ib_fast_reg_page_list *ibpl) +{ + return container_of(ibpl, struct c4iw_fr_page_list, ibpl); +} + +struct c4iw_cq { + struct ib_cq ibcq; + struct c4iw_dev *rhp; + struct t4_cq cq; + spinlock_t lock; + atomic_t refcnt; + wait_queue_head_t wait; +}; + +static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq) +{ + return container_of(ibcq, struct c4iw_cq, ibcq); +} + +struct c4iw_mpa_attributes { + u8 initiator; + u8 recv_marker_enabled; + u8 xmit_marker_enabled; + u8 crc_enabled; + u8 version; + u8 p2p_type; +}; + +struct c4iw_qp_attributes { + u32 scq; + u32 rcq; + u32 sq_num_entries; + u32 rq_num_entries; + u32 sq_max_sges; + u32 sq_max_sges_rdma_write; + u32 rq_max_sges; + u32 state; + u8 enable_rdma_read; + u8 enable_rdma_write; + u8 enable_bind; + u8 enable_mmid0_fastreg; + u32 max_ord; + u32 max_ird; + u32 pd; + u32 next_state; + char terminate_buffer[52]; + u32 terminate_msg_len; + u8 is_terminate_local; + struct c4iw_mpa_attributes mpa_attr; + struct c4iw_ep *llp_stream_handle; +}; + +struct c4iw_qp { + struct ib_qp ibqp; + struct c4iw_dev *rhp; + struct c4iw_ep *ep; + struct c4iw_qp_attributes attr; + struct t4_wq wq; + spinlock_t lock; + atomic_t refcnt; + wait_queue_head_t wait; + struct timer_list timer; +}; + +static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp) +{ + return container_of(ibqp, struct c4iw_qp, ibqp); +} + +struct c4iw_ucontext { + struct ib_ucontext ibucontext; + struct c4iw_dev_ucontext uctx; + u32 key; + spinlock_t mmap_lock; + struct list_head mmaps; +}; + +static inline struct c4iw_ucontext *to_c4iw_ucontext(struct ib_ucontext *c) +{ + return container_of(c, struct c4iw_ucontext, ibucontext); +} + +struct c4iw_mm_entry { + struct list_head entry; + u64 addr; + u32 key; + unsigned len; +}; + +static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext, + u32 key, unsigned len) +{ + struct list_head *pos, *nxt; + struct c4iw_mm_entry *mm; + + spin_lock(&ucontext->mmap_lock); + list_for_each_safe(pos, nxt, &ucontext->mmaps) { + + mm = list_entry(pos, struct c4iw_mm_entry, entry); + if (mm->key == key && mm->len == len) { + list_del_init(&mm->entry); + spin_unlock(&ucontext->mmap_lock); + PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__, + key, (unsigned long long) mm->addr, mm->len); + return mm; + } + } + spin_unlock(&ucontext->mmap_lock); + return NULL; +} + +static inline void insert_mmap(struct c4iw_ucontext *ucontext, + struct c4iw_mm_entry *mm) +{ + spin_lock(&ucontext->mmap_lock); + PDBG("%s key 0x%x addr 0x%llx len %d\n", __func__, + mm->key, (unsigned long long) mm->addr, mm->len); + list_add_tail(&mm->entry, &ucontext->mmaps); + spin_unlock(&ucontext->mmap_lock); +} + +enum c4iw_qp_attr_mask { + C4IW_QP_ATTR_NEXT_STATE = 1 << 0, + C4IW_QP_ATTR_ENABLE_RDMA_READ = 1 << 7, + C4IW_QP_ATTR_ENABLE_RDMA_WRITE = 1 << 8, + C4IW_QP_ATTR_ENABLE_RDMA_BIND = 1 << 9, + C4IW_QP_ATTR_MAX_ORD = 1 << 11, + C4IW_QP_ATTR_MAX_IRD = 1 << 12, + C4IW_QP_ATTR_LLP_STREAM_HANDLE = 1 << 22, + C4IW_QP_ATTR_STREAM_MSG_BUFFER = 1 << 23, + C4IW_QP_ATTR_MPA_ATTR = 1 << 24, + C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE = 1 << 25, + C4IW_QP_ATTR_VALID_MODIFY = (C4IW_QP_ATTR_ENABLE_RDMA_READ | + C4IW_QP_ATTR_ENABLE_RDMA_WRITE | + C4IW_QP_ATTR_MAX_ORD | + C4IW_QP_ATTR_MAX_IRD | + C4IW_QP_ATTR_LLP_STREAM_HANDLE | + C4IW_QP_ATTR_STREAM_MSG_BUFFER | + C4IW_QP_ATTR_MPA_ATTR | + C4IW_QP_ATTR_QP_CONTEXT_ACTIVATE) +}; + +int c4iw_modify_qp(struct c4iw_dev *rhp, + struct c4iw_qp *qhp, + enum c4iw_qp_attr_mask mask, + struct c4iw_qp_attributes *attrs, + int internal); + +enum c4iw_qp_state { + C4IW_QP_STATE_IDLE, + C4IW_QP_STATE_RTS, + C4IW_QP_STATE_ERROR, + C4IW_QP_STATE_TERMINATE, + C4IW_QP_STATE_CLOSING, + C4IW_QP_STATE_TOT +}; + +static inline int c4iw_convert_state(enum ib_qp_state ib_state) +{ + switch (ib_state) { + case IB_QPS_RESET: + case IB_QPS_INIT: + return C4IW_QP_STATE_IDLE; + case IB_QPS_RTS: + return C4IW_QP_STATE_RTS; + case IB_QPS_SQD: + return C4IW_QP_STATE_CLOSING; + case IB_QPS_SQE: + return C4IW_QP_STATE_TERMINATE; + case IB_QPS_ERR: + return C4IW_QP_STATE_ERROR; + default: + return -1; + } +} + +static inline u32 c4iw_ib_to_tpt_access(int a) +{ + return (a & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) | + (a & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0) | + (a & IB_ACCESS_LOCAL_WRITE ? FW_RI_MEM_ACCESS_LOCAL_WRITE : 0) | + FW_RI_MEM_ACCESS_LOCAL_READ; +} + +static inline u32 c4iw_ib_to_tpt_bind_access(int acc) +{ + return (acc & IB_ACCESS_REMOTE_WRITE ? FW_RI_MEM_ACCESS_REM_WRITE : 0) | + (acc & IB_ACCESS_REMOTE_READ ? FW_RI_MEM_ACCESS_REM_READ : 0); +} + +enum c4iw_mmid_state { + C4IW_STAG_STATE_VALID, + C4IW_STAG_STATE_INVALID +}; + +#define C4IW_NODE_DESC "cxgb4 Chelsio Communications" + +#define MPA_KEY_REQ "MPA ID Req Frame" +#define MPA_KEY_REP "MPA ID Rep Frame" + +#define MPA_MAX_PRIVATE_DATA 256 +#define MPA_REJECT 0x20 +#define MPA_CRC 0x40 +#define MPA_MARKERS 0x80 +#define MPA_FLAGS_MASK 0xE0 + +#define c4iw_put_ep(ep) { \ + PDBG("put_ep (via %s:%u) ep %p refcnt %d\n", __func__, __LINE__, \ + ep, atomic_read(&((ep)->kref.refcount))); \ + WARN_ON(atomic_read(&((ep)->kref.refcount)) < 1); \ + kref_put(&((ep)->kref), _c4iw_free_ep); \ +} + +#define c4iw_get_ep(ep) { \ + PDBG("get_ep (via %s:%u) ep %p, refcnt %d\n", __func__, __LINE__, \ + ep, atomic_read(&((ep)->kref.refcount))); \ + kref_get(&((ep)->kref)); \ +} +void _c4iw_free_ep(struct kref *kref); + +struct mpa_message { + u8 key[16]; + u8 flags; + u8 revision; + __be16 private_data_size; + u8 private_data[0]; +}; + +struct terminate_message { + u8 layer_etype; + u8 ecode; + __be16 hdrct_rsvd; + u8 len_hdrs[0]; +}; + +#define TERM_MAX_LENGTH (sizeof(struct terminate_message) + 2 + 18 + 28) + +enum c4iw_layers_types { + LAYER_RDMAP = 0x00, + LAYER_DDP = 0x10, + LAYER_MPA = 0x20, + RDMAP_LOCAL_CATA = 0x00, + RDMAP_REMOTE_PROT = 0x01, + RDMAP_REMOTE_OP = 0x02, + DDP_LOCAL_CATA = 0x00, + DDP_TAGGED_ERR = 0x01, + DDP_UNTAGGED_ERR = 0x02, + DDP_LLP = 0x03 +}; + +enum c4iw_rdma_ecodes { + RDMAP_INV_STAG = 0x00, + RDMAP_BASE_BOUNDS = 0x01, + RDMAP_ACC_VIOL = 0x02, + RDMAP_STAG_NOT_ASSOC = 0x03, + RDMAP_TO_WRAP = 0x04, + RDMAP_INV_VERS = 0x05, + RDMAP_INV_OPCODE = 0x06, + RDMAP_STREAM_CATA = 0x07, + RDMAP_GLOBAL_CATA = 0x08, + RDMAP_CANT_INV_STAG = 0x09, + RDMAP_UNSPECIFIED = 0xff +}; + +enum c4iw_ddp_ecodes { + DDPT_INV_STAG = 0x00, + DDPT_BASE_BOUNDS = 0x01, + DDPT_STAG_NOT_ASSOC = 0x02, + DDPT_TO_WRAP = 0x03, + DDPT_INV_VERS = 0x04, + DDPU_INV_QN = 0x01, + DDPU_INV_MSN_NOBUF = 0x02, + DDPU_INV_MSN_RANGE = 0x03, + DDPU_INV_MO = 0x04, + DDPU_MSG_TOOBIG = 0x05, + DDPU_INV_VERS = 0x06 +}; + +enum c4iw_mpa_ecodes { + MPA_CRC_ERR = 0x02, + MPA_MARKER_ERR = 0x03 +}; + +enum c4iw_ep_state { + IDLE = 0, + LISTEN, + CONNECTING, + MPA_REQ_WAIT, + MPA_REQ_SENT, + MPA_REQ_RCVD, + MPA_REP_SENT, + FPDU_MODE, + ABORTING, + CLOSING, + MORIBUND, + DEAD, +}; + +enum c4iw_ep_flags { + PEER_ABORT_IN_PROGRESS = 0, + ABORT_REQ_IN_PROGRESS = 1, + RELEASE_RESOURCES = 2, + CLOSE_SENT = 3, +}; + +struct c4iw_ep_common { + struct iw_cm_id *cm_id; + struct c4iw_qp *qp; + struct c4iw_dev *dev; + enum c4iw_ep_state state; + struct kref kref; + spinlock_t lock; + struct sockaddr_in local_addr; + struct sockaddr_in remote_addr; + wait_queue_head_t waitq; + int rpl_done; + int rpl_err; + unsigned long flags; +}; + +struct c4iw_listen_ep { + struct c4iw_ep_common com; + unsigned int stid; + int backlog; +}; + +struct c4iw_ep { + struct c4iw_ep_common com; + struct c4iw_ep *parent_ep; + struct timer_list timer; + struct list_head entry; + unsigned int atid; + u32 hwtid; + u32 snd_seq; + u32 rcv_seq; + struct l2t_entry *l2t; + struct dst_entry *dst; + struct sk_buff *mpa_skb; + struct c4iw_mpa_attributes mpa_attr; + u8 mpa_pkt[sizeof(struct mpa_message) + MPA_MAX_PRIVATE_DATA]; + unsigned int mpa_pkt_len; + u32 ird; + u32 ord; + u32 smac_idx; + u32 tx_chan; + u32 mtu; + u16 mss; + u16 emss; + u16 plen; + u16 rss_qid; + u16 txq_idx; + u8 tos; +}; + +static inline struct c4iw_ep *to_ep(struct iw_cm_id *cm_id) +{ + return cm_id->provider_data; +} + +static inline struct c4iw_listen_ep *to_listen_ep(struct iw_cm_id *cm_id) +{ + return cm_id->provider_data; +} + +static inline int compute_wscale(int win) +{ + int wscale = 0; + + while (wscale < 14 && (65535<<wscale) < win) + wscale++; + return wscale; +} + +typedef int (*c4iw_handler_func)(struct c4iw_dev *dev, struct sk_buff *skb); + +int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new, + struct l2t_entry *l2t); +void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qpid, + struct c4iw_dev_ucontext *uctx); +u32 c4iw_get_resource(struct kfifo *fifo, spinlock_t *lock); +void c4iw_put_resource(struct kfifo *fifo, u32 entry, spinlock_t *lock); +int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid); +int c4iw_init_ctrl_qp(struct c4iw_rdev *rdev); +int c4iw_pblpool_create(struct c4iw_rdev *rdev); +int c4iw_rqtpool_create(struct c4iw_rdev *rdev); +void c4iw_pblpool_destroy(struct c4iw_rdev *rdev); +void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev); +void c4iw_destroy_resource(struct c4iw_resource *rscp); +int c4iw_destroy_ctrl_qp(struct c4iw_rdev *rdev); +int c4iw_register_device(struct c4iw_dev *dev); +void c4iw_unregister_device(struct c4iw_dev *dev); +int __init c4iw_cm_init(void); +void __exit c4iw_cm_term(void); +void c4iw_release_dev_ucontext(struct c4iw_rdev *rdev, + struct c4iw_dev_ucontext *uctx); +void c4iw_init_dev_ucontext(struct c4iw_rdev *rdev, + struct c4iw_dev_ucontext *uctx); +int c4iw_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); +int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, + struct ib_send_wr **bad_wr); +int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, + struct ib_recv_wr **bad_wr); +int c4iw_bind_mw(struct ib_qp *qp, struct ib_mw *mw, + struct ib_mw_bind *mw_bind); +int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); +int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog); +int c4iw_destroy_listen(struct iw_cm_id *cm_id); +int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); +int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len); +void c4iw_qp_add_ref(struct ib_qp *qp); +void c4iw_qp_rem_ref(struct ib_qp *qp); +void c4iw_free_fastreg_pbl(struct ib_fast_reg_page_list *page_list); +struct ib_fast_reg_page_list *c4iw_alloc_fastreg_pbl( + struct ib_device *device, + int page_list_len); +struct ib_mr *c4iw_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth); +int c4iw_dealloc_mw(struct ib_mw *mw); +struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd); +struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, + u64 length, u64 virt, int acc, + struct ib_udata *udata); +struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc); +struct ib_mr *c4iw_register_phys_mem(struct ib_pd *pd, + struct ib_phys_buf *buffer_list, + int num_phys_buf, + int acc, + u64 *iova_start); +int c4iw_reregister_phys_mem(struct ib_mr *mr, + int mr_rereg_mask, + struct ib_pd *pd, + struct ib_phys_buf *buffer_list, + int num_phys_buf, + int acc, u64 *iova_start); +int c4iw_dereg_mr(struct ib_mr *ib_mr); +int c4iw_destroy_cq(struct ib_cq *ib_cq); +struct ib_cq *c4iw_create_cq(struct ib_device *ibdev, int entries, + int vector, + struct ib_ucontext *ib_context, + struct ib_udata *udata); +int c4iw_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata); +int c4iw_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags); +int c4iw_destroy_qp(struct ib_qp *ib_qp); +struct ib_qp *c4iw_create_qp(struct ib_pd *pd, + struct ib_qp_init_attr *attrs, + struct ib_udata *udata); +int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, + int attr_mask, struct ib_udata *udata); +struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn); +u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size); +void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size); +u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size); +void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size); +int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb); +void c4iw_flush_hw_cq(struct t4_cq *cq); +void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count); +void c4iw_count_scqes(struct t4_cq *cq, struct t4_wq *wq, int *count); +int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp); +int c4iw_flush_rq(struct t4_wq *wq, struct t4_cq *cq, int count); +int c4iw_flush_sq(struct t4_wq *wq, struct t4_cq *cq, int count); +int c4iw_ev_handler(struct c4iw_dev *rnicp, u32 qid); +u16 c4iw_rqes_posted(struct c4iw_qp *qhp); +int c4iw_post_zb_read(struct c4iw_qp *qhp); +int c4iw_post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe); +u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx); +void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid, + struct c4iw_dev_ucontext *uctx); +u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx); +void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid, + struct c4iw_dev_ucontext *uctx); +void c4iw_ev_dispatch(struct c4iw_dev *dev, struct t4_cqe *err_cqe); + +extern struct cxgb4_client t4c_client; +extern c4iw_handler_func c4iw_handlers[NUM_CPL_CMDS]; +extern int c4iw_max_read_depth; + +#endif diff --git a/drivers/infiniband/hw/cxgb4/mem.c b/drivers/infiniband/hw/cxgb4/mem.c new file mode 100644 index 000000000000..e54ff6d25691 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/mem.c @@ -0,0 +1,811 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +#include <rdma/ib_umem.h> +#include <asm/atomic.h> + +#include "iw_cxgb4.h" + +#define T4_ULPTX_MIN_IO 32 +#define C4IW_MAX_INLINE_SIZE 96 + +static int write_adapter_mem(struct c4iw_rdev *rdev, u32 addr, u32 len, + void *data) +{ + struct sk_buff *skb; + struct ulp_mem_io *req; + struct ulptx_idata *sc; + u8 wr_len, *to_dp, *from_dp; + int copy_len, num_wqe, i, ret = 0; + struct c4iw_wr_wait wr_wait; + + addr &= 0x7FFFFFF; + PDBG("%s addr 0x%x len %u\n", __func__, addr, len); + num_wqe = DIV_ROUND_UP(len, C4IW_MAX_INLINE_SIZE); + c4iw_init_wr_wait(&wr_wait); + for (i = 0; i < num_wqe; i++) { + + copy_len = len > C4IW_MAX_INLINE_SIZE ? C4IW_MAX_INLINE_SIZE : + len; + wr_len = roundup(sizeof *req + sizeof *sc + + roundup(copy_len, T4_ULPTX_MIN_IO), 16); + + skb = alloc_skb(wr_len, GFP_KERNEL | __GFP_NOFAIL); + if (!skb) + return -ENOMEM; + set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0); + + req = (struct ulp_mem_io *)__skb_put(skb, wr_len); + memset(req, 0, wr_len); + INIT_ULPTX_WR(req, wr_len, 0, 0); + + if (i == (num_wqe-1)) { + req->wr.wr_hi = cpu_to_be32(FW_WR_OP(FW_ULPTX_WR) | + FW_WR_COMPL(1)); + req->wr.wr_lo = (__force __be64)&wr_wait; + } else + req->wr.wr_hi = cpu_to_be32(FW_WR_OP(FW_ULPTX_WR)); + req->wr.wr_mid = cpu_to_be32( + FW_WR_LEN16(DIV_ROUND_UP(wr_len, 16))); + + req->cmd = cpu_to_be32(ULPTX_CMD(ULP_TX_MEM_WRITE) | (1<<23)); + req->dlen = cpu_to_be32(ULP_MEMIO_DATA_LEN( + DIV_ROUND_UP(copy_len, T4_ULPTX_MIN_IO))); + req->len16 = cpu_to_be32(DIV_ROUND_UP(wr_len-sizeof(req->wr), + 16)); + req->lock_addr = cpu_to_be32(ULP_MEMIO_ADDR(addr + i * 3)); + + sc = (struct ulptx_idata *)(req + 1); + sc->cmd_more = cpu_to_be32(ULPTX_CMD(ULP_TX_SC_IMM)); + sc->len = cpu_to_be32(roundup(copy_len, T4_ULPTX_MIN_IO)); + + to_dp = (u8 *)(sc + 1); + from_dp = (u8 *)data + i * C4IW_MAX_INLINE_SIZE; + if (data) + memcpy(to_dp, from_dp, copy_len); + else + memset(to_dp, 0, copy_len); + if (copy_len % T4_ULPTX_MIN_IO) + memset(to_dp + copy_len, 0, T4_ULPTX_MIN_IO - + (copy_len % T4_ULPTX_MIN_IO)); + ret = c4iw_ofld_send(rdev, skb); + if (ret) + return ret; + len -= C4IW_MAX_INLINE_SIZE; + } + + wait_event_timeout(wr_wait.wait, wr_wait.done, C4IW_WR_TO); + if (!wr_wait.done) { + printk(KERN_ERR MOD "Device %s not responding!\n", + pci_name(rdev->lldi.pdev)); + rdev->flags = T4_FATAL_ERROR; + ret = -EIO; + } else + ret = wr_wait.ret; + return ret; +} + +/* + * Build and write a TPT entry. + * IN: stag key, pdid, perm, bind_enabled, zbva, to, len, page_size, + * pbl_size and pbl_addr + * OUT: stag index + */ +static int write_tpt_entry(struct c4iw_rdev *rdev, u32 reset_tpt_entry, + u32 *stag, u8 stag_state, u32 pdid, + enum fw_ri_stag_type type, enum fw_ri_mem_perms perm, + int bind_enabled, u32 zbva, u64 to, + u64 len, u8 page_size, u32 pbl_size, u32 pbl_addr) +{ + int err; + struct fw_ri_tpte tpt; + u32 stag_idx; + static atomic_t key; + + if (c4iw_fatal_error(rdev)) + return -EIO; + + stag_state = stag_state > 0; + stag_idx = (*stag) >> 8; + + if ((!reset_tpt_entry) && (*stag == T4_STAG_UNSET)) { + stag_idx = c4iw_get_resource(&rdev->resource.tpt_fifo, + &rdev->resource.tpt_fifo_lock); + if (!stag_idx) + return -ENOMEM; + *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff); + } + PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n", + __func__, stag_state, type, pdid, stag_idx); + + /* write TPT entry */ + if (reset_tpt_entry) + memset(&tpt, 0, sizeof(tpt)); + else { + tpt.valid_to_pdid = cpu_to_be32(F_FW_RI_TPTE_VALID | + V_FW_RI_TPTE_STAGKEY((*stag & M_FW_RI_TPTE_STAGKEY)) | + V_FW_RI_TPTE_STAGSTATE(stag_state) | + V_FW_RI_TPTE_STAGTYPE(type) | V_FW_RI_TPTE_PDID(pdid)); + tpt.locread_to_qpid = cpu_to_be32(V_FW_RI_TPTE_PERM(perm) | + (bind_enabled ? F_FW_RI_TPTE_MWBINDEN : 0) | + V_FW_RI_TPTE_ADDRTYPE((zbva ? FW_RI_ZERO_BASED_TO : + FW_RI_VA_BASED_TO))| + V_FW_RI_TPTE_PS(page_size)); + tpt.nosnoop_pbladdr = !pbl_size ? 0 : cpu_to_be32( + V_FW_RI_TPTE_PBLADDR(PBL_OFF(rdev, pbl_addr)>>3)); + tpt.len_lo = cpu_to_be32((u32)(len & 0xffffffffUL)); + tpt.va_hi = cpu_to_be32((u32)(to >> 32)); + tpt.va_lo_fbo = cpu_to_be32((u32)(to & 0xffffffffUL)); + tpt.dca_mwbcnt_pstag = cpu_to_be32(0); + tpt.len_hi = cpu_to_be32((u32)(len >> 32)); + } + err = write_adapter_mem(rdev, stag_idx + + (rdev->lldi.vr->stag.start >> 5), + sizeof(tpt), &tpt); + + if (reset_tpt_entry) + c4iw_put_resource(&rdev->resource.tpt_fifo, stag_idx, + &rdev->resource.tpt_fifo_lock); + return err; +} + +static int write_pbl(struct c4iw_rdev *rdev, __be64 *pbl, + u32 pbl_addr, u32 pbl_size) +{ + int err; + + PDBG("%s *pdb_addr 0x%x, pbl_base 0x%x, pbl_size %d\n", + __func__, pbl_addr, rdev->lldi.vr->pbl.start, + pbl_size); + + err = write_adapter_mem(rdev, pbl_addr >> 5, pbl_size << 3, pbl); + return err; +} + +static int dereg_mem(struct c4iw_rdev *rdev, u32 stag, u32 pbl_size, + u32 pbl_addr) +{ + return write_tpt_entry(rdev, 1, &stag, 0, 0, 0, 0, 0, 0, 0UL, 0, 0, + pbl_size, pbl_addr); +} + +static int allocate_window(struct c4iw_rdev *rdev, u32 * stag, u32 pdid) +{ + *stag = T4_STAG_UNSET; + return write_tpt_entry(rdev, 0, stag, 0, pdid, FW_RI_STAG_MW, 0, 0, 0, + 0UL, 0, 0, 0, 0); +} + +static int deallocate_window(struct c4iw_rdev *rdev, u32 stag) +{ + return write_tpt_entry(rdev, 1, &stag, 0, 0, 0, 0, 0, 0, 0UL, 0, 0, 0, + 0); +} + +static int allocate_stag(struct c4iw_rdev *rdev, u32 *stag, u32 pdid, + u32 pbl_size, u32 pbl_addr) +{ + *stag = T4_STAG_UNSET; + return write_tpt_entry(rdev, 0, stag, 0, pdid, FW_RI_STAG_NSMR, 0, 0, 0, + 0UL, 0, 0, pbl_size, pbl_addr); +} + +static int finish_mem_reg(struct c4iw_mr *mhp, u32 stag) +{ + u32 mmid; + + mhp->attr.state = 1; + mhp->attr.stag = stag; + mmid = stag >> 8; + mhp->ibmr.rkey = mhp->ibmr.lkey = stag; + PDBG("%s mmid 0x%x mhp %p\n", __func__, mmid, mhp); + return insert_handle(mhp->rhp, &mhp->rhp->mmidr, mhp, mmid); +} + +static int register_mem(struct c4iw_dev *rhp, struct c4iw_pd *php, + struct c4iw_mr *mhp, int shift) +{ + u32 stag = T4_STAG_UNSET; + int ret; + + ret = write_tpt_entry(&rhp->rdev, 0, &stag, 1, mhp->attr.pdid, + FW_RI_STAG_NSMR, mhp->attr.perms, + mhp->attr.mw_bind_enable, mhp->attr.zbva, + mhp->attr.va_fbo, mhp->attr.len, shift - 12, + mhp->attr.pbl_size, mhp->attr.pbl_addr); + if (ret) + return ret; + + ret = finish_mem_reg(mhp, stag); + if (ret) + dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, + mhp->attr.pbl_addr); + return ret; +} + +static int reregister_mem(struct c4iw_dev *rhp, struct c4iw_pd *php, + struct c4iw_mr *mhp, int shift, int npages) +{ + u32 stag; + int ret; + + if (npages > mhp->attr.pbl_size) + return -ENOMEM; + + stag = mhp->attr.stag; + ret = write_tpt_entry(&rhp->rdev, 0, &stag, 1, mhp->attr.pdid, + FW_RI_STAG_NSMR, mhp->attr.perms, + mhp->attr.mw_bind_enable, mhp->attr.zbva, + mhp->attr.va_fbo, mhp->attr.len, shift - 12, + mhp->attr.pbl_size, mhp->attr.pbl_addr); + if (ret) + return ret; + + ret = finish_mem_reg(mhp, stag); + if (ret) + dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, + mhp->attr.pbl_addr); + + return ret; +} + +static int alloc_pbl(struct c4iw_mr *mhp, int npages) +{ + mhp->attr.pbl_addr = c4iw_pblpool_alloc(&mhp->rhp->rdev, + npages << 3); + + if (!mhp->attr.pbl_addr) + return -ENOMEM; + + mhp->attr.pbl_size = npages; + + return 0; +} + +static int build_phys_page_list(struct ib_phys_buf *buffer_list, + int num_phys_buf, u64 *iova_start, + u64 *total_size, int *npages, + int *shift, __be64 **page_list) +{ + u64 mask; + int i, j, n; + + mask = 0; + *total_size = 0; + for (i = 0; i < num_phys_buf; ++i) { + if (i != 0 && buffer_list[i].addr & ~PAGE_MASK) + return -EINVAL; + if (i != 0 && i != num_phys_buf - 1 && + (buffer_list[i].size & ~PAGE_MASK)) + return -EINVAL; + *total_size += buffer_list[i].size; + if (i > 0) + mask |= buffer_list[i].addr; + else + mask |= buffer_list[i].addr & PAGE_MASK; + if (i != num_phys_buf - 1) + mask |= buffer_list[i].addr + buffer_list[i].size; + else + mask |= (buffer_list[i].addr + buffer_list[i].size + + PAGE_SIZE - 1) & PAGE_MASK; + } + + if (*total_size > 0xFFFFFFFFULL) + return -ENOMEM; + + /* Find largest page shift we can use to cover buffers */ + for (*shift = PAGE_SHIFT; *shift < 27; ++(*shift)) + if ((1ULL << *shift) & mask) + break; + + buffer_list[0].size += buffer_list[0].addr & ((1ULL << *shift) - 1); + buffer_list[0].addr &= ~0ull << *shift; + + *npages = 0; + for (i = 0; i < num_phys_buf; ++i) + *npages += (buffer_list[i].size + + (1ULL << *shift) - 1) >> *shift; + + if (!*npages) + return -EINVAL; + + *page_list = kmalloc(sizeof(u64) * *npages, GFP_KERNEL); + if (!*page_list) + return -ENOMEM; + + n = 0; + for (i = 0; i < num_phys_buf; ++i) + for (j = 0; + j < (buffer_list[i].size + (1ULL << *shift) - 1) >> *shift; + ++j) + (*page_list)[n++] = cpu_to_be64(buffer_list[i].addr + + ((u64) j << *shift)); + + PDBG("%s va 0x%llx mask 0x%llx shift %d len %lld pbl_size %d\n", + __func__, (unsigned long long)*iova_start, + (unsigned long long)mask, *shift, (unsigned long long)*total_size, + *npages); + + return 0; + +} + +int c4iw_reregister_phys_mem(struct ib_mr *mr, int mr_rereg_mask, + struct ib_pd *pd, struct ib_phys_buf *buffer_list, + int num_phys_buf, int acc, u64 *iova_start) +{ + + struct c4iw_mr mh, *mhp; + struct c4iw_pd *php; + struct c4iw_dev *rhp; + __be64 *page_list = NULL; + int shift = 0; + u64 total_size; + int npages; + int ret; + + PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd); + + /* There can be no memory windows */ + if (atomic_read(&mr->usecnt)) + return -EINVAL; + + mhp = to_c4iw_mr(mr); + rhp = mhp->rhp; + php = to_c4iw_pd(mr->pd); + + /* make sure we are on the same adapter */ + if (rhp != php->rhp) + return -EINVAL; + + memcpy(&mh, mhp, sizeof *mhp); + + if (mr_rereg_mask & IB_MR_REREG_PD) + php = to_c4iw_pd(pd); + if (mr_rereg_mask & IB_MR_REREG_ACCESS) { + mh.attr.perms = c4iw_ib_to_tpt_access(acc); + mh.attr.mw_bind_enable = (acc & IB_ACCESS_MW_BIND) == + IB_ACCESS_MW_BIND; + } + if (mr_rereg_mask & IB_MR_REREG_TRANS) { + ret = build_phys_page_list(buffer_list, num_phys_buf, + iova_start, + &total_size, &npages, + &shift, &page_list); + if (ret) + return ret; + } + + ret = reregister_mem(rhp, php, &mh, shift, npages); + kfree(page_list); + if (ret) + return ret; + if (mr_rereg_mask & IB_MR_REREG_PD) + mhp->attr.pdid = php->pdid; + if (mr_rereg_mask & IB_MR_REREG_ACCESS) + mhp->attr.perms = c4iw_ib_to_tpt_access(acc); + if (mr_rereg_mask & IB_MR_REREG_TRANS) { + mhp->attr.zbva = 0; + mhp->attr.va_fbo = *iova_start; + mhp->attr.page_size = shift - 12; + mhp->attr.len = (u32) total_size; + mhp->attr.pbl_size = npages; + } + + return 0; +} + +struct ib_mr *c4iw_register_phys_mem(struct ib_pd *pd, + struct ib_phys_buf *buffer_list, + int num_phys_buf, int acc, u64 *iova_start) +{ + __be64 *page_list; + int shift; + u64 total_size; + int npages; + struct c4iw_dev *rhp; + struct c4iw_pd *php; + struct c4iw_mr *mhp; + int ret; + + PDBG("%s ib_pd %p\n", __func__, pd); + php = to_c4iw_pd(pd); + rhp = php->rhp; + + mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); + if (!mhp) + return ERR_PTR(-ENOMEM); + + mhp->rhp = rhp; + + /* First check that we have enough alignment */ + if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) { + ret = -EINVAL; + goto err; + } + + if (num_phys_buf > 1 && + ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) { + ret = -EINVAL; + goto err; + } + + ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start, + &total_size, &npages, &shift, + &page_list); + if (ret) + goto err; + + ret = alloc_pbl(mhp, npages); + if (ret) { + kfree(page_list); + goto err_pbl; + } + + ret = write_pbl(&mhp->rhp->rdev, page_list, mhp->attr.pbl_addr, + npages); + kfree(page_list); + if (ret) + goto err_pbl; + + mhp->attr.pdid = php->pdid; + mhp->attr.zbva = 0; + + mhp->attr.perms = c4iw_ib_to_tpt_access(acc); + mhp->attr.va_fbo = *iova_start; + mhp->attr.page_size = shift - 12; + + mhp->attr.len = (u32) total_size; + mhp->attr.pbl_size = npages; + ret = register_mem(rhp, php, mhp, shift); + if (ret) + goto err_pbl; + + return &mhp->ibmr; + +err_pbl: + c4iw_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr, + mhp->attr.pbl_size << 3); + +err: + kfree(mhp); + return ERR_PTR(ret); + +} + +struct ib_mr *c4iw_get_dma_mr(struct ib_pd *pd, int acc) +{ + struct c4iw_dev *rhp; + struct c4iw_pd *php; + struct c4iw_mr *mhp; + int ret; + u32 stag = T4_STAG_UNSET; + + PDBG("%s ib_pd %p\n", __func__, pd); + php = to_c4iw_pd(pd); + rhp = php->rhp; + + mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); + if (!mhp) + return ERR_PTR(-ENOMEM); + + mhp->rhp = rhp; + mhp->attr.pdid = php->pdid; + mhp->attr.perms = c4iw_ib_to_tpt_access(acc); + mhp->attr.mw_bind_enable = (acc&IB_ACCESS_MW_BIND) == IB_ACCESS_MW_BIND; + mhp->attr.zbva = 0; + mhp->attr.va_fbo = 0; + mhp->attr.page_size = 0; + mhp->attr.len = ~0UL; + mhp->attr.pbl_size = 0; + + ret = write_tpt_entry(&rhp->rdev, 0, &stag, 1, php->pdid, + FW_RI_STAG_NSMR, mhp->attr.perms, + mhp->attr.mw_bind_enable, 0, 0, ~0UL, 0, 0, 0); + if (ret) + goto err1; + + ret = finish_mem_reg(mhp, stag); + if (ret) + goto err2; + return &mhp->ibmr; +err2: + dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, + mhp->attr.pbl_addr); +err1: + kfree(mhp); + return ERR_PTR(ret); +} + +struct ib_mr *c4iw_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, + u64 virt, int acc, struct ib_udata *udata) +{ + __be64 *pages; + int shift, n, len; + int i, j, k; + int err = 0; + struct ib_umem_chunk *chunk; + struct c4iw_dev *rhp; + struct c4iw_pd *php; + struct c4iw_mr *mhp; + + PDBG("%s ib_pd %p\n", __func__, pd); + + if (length == ~0ULL) + return ERR_PTR(-EINVAL); + + if ((length + start) < start) + return ERR_PTR(-EINVAL); + + php = to_c4iw_pd(pd); + rhp = php->rhp; + mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); + if (!mhp) + return ERR_PTR(-ENOMEM); + + mhp->rhp = rhp; + + mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0); + if (IS_ERR(mhp->umem)) { + err = PTR_ERR(mhp->umem); + kfree(mhp); + return ERR_PTR(err); + } + + shift = ffs(mhp->umem->page_size) - 1; + + n = 0; + list_for_each_entry(chunk, &mhp->umem->chunk_list, list) + n += chunk->nents; + + err = alloc_pbl(mhp, n); + if (err) + goto err; + + pages = (__be64 *) __get_free_page(GFP_KERNEL); + if (!pages) { + err = -ENOMEM; + goto err_pbl; + } + + i = n = 0; + + list_for_each_entry(chunk, &mhp->umem->chunk_list, list) + for (j = 0; j < chunk->nmap; ++j) { + len = sg_dma_len(&chunk->page_list[j]) >> shift; + for (k = 0; k < len; ++k) { + pages[i++] = cpu_to_be64(sg_dma_address( + &chunk->page_list[j]) + + mhp->umem->page_size * k); + if (i == PAGE_SIZE / sizeof *pages) { + err = write_pbl(&mhp->rhp->rdev, + pages, + mhp->attr.pbl_addr + (n << 3), i); + if (err) + goto pbl_done; + n += i; + i = 0; + } + } + } + + if (i) + err = write_pbl(&mhp->rhp->rdev, pages, + mhp->attr.pbl_addr + (n << 3), i); + +pbl_done: + free_page((unsigned long) pages); + if (err) + goto err_pbl; + + mhp->attr.pdid = php->pdid; + mhp->attr.zbva = 0; + mhp->attr.perms = c4iw_ib_to_tpt_access(acc); + mhp->attr.va_fbo = virt; + mhp->attr.page_size = shift - 12; + mhp->attr.len = (u32) length; + + err = register_mem(rhp, php, mhp, shift); + if (err) + goto err_pbl; + + return &mhp->ibmr; + +err_pbl: + c4iw_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr, + mhp->attr.pbl_size << 3); + +err: + ib_umem_release(mhp->umem); + kfree(mhp); + return ERR_PTR(err); +} + +struct ib_mw *c4iw_alloc_mw(struct ib_pd *pd) +{ + struct c4iw_dev *rhp; + struct c4iw_pd *php; + struct c4iw_mw *mhp; + u32 mmid; + u32 stag = 0; + int ret; + + php = to_c4iw_pd(pd); + rhp = php->rhp; + mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); + if (!mhp) + return ERR_PTR(-ENOMEM); + ret = allocate_window(&rhp->rdev, &stag, php->pdid); + if (ret) { + kfree(mhp); + return ERR_PTR(ret); + } + mhp->rhp = rhp; + mhp->attr.pdid = php->pdid; + mhp->attr.type = FW_RI_STAG_MW; + mhp->attr.stag = stag; + mmid = (stag) >> 8; + mhp->ibmw.rkey = stag; + if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) { + deallocate_window(&rhp->rdev, mhp->attr.stag); + kfree(mhp); + return ERR_PTR(-ENOMEM); + } + PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); + return &(mhp->ibmw); +} + +int c4iw_dealloc_mw(struct ib_mw *mw) +{ + struct c4iw_dev *rhp; + struct c4iw_mw *mhp; + u32 mmid; + + mhp = to_c4iw_mw(mw); + rhp = mhp->rhp; + mmid = (mw->rkey) >> 8; + deallocate_window(&rhp->rdev, mhp->attr.stag); + remove_handle(rhp, &rhp->mmidr, mmid); + kfree(mhp); + PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp); + return 0; +} + +struct ib_mr *c4iw_alloc_fast_reg_mr(struct ib_pd *pd, int pbl_depth) +{ + struct c4iw_dev *rhp; + struct c4iw_pd *php; + struct c4iw_mr *mhp; + u32 mmid; + u32 stag = 0; + int ret = 0; + + php = to_c4iw_pd(pd); + rhp = php->rhp; + mhp = kzalloc(sizeof(*mhp), GFP_KERNEL); + if (!mhp) + goto err; + + mhp->rhp = rhp; + ret = alloc_pbl(mhp, pbl_depth); + if (ret) + goto err1; + mhp->attr.pbl_size = pbl_depth; + ret = allocate_stag(&rhp->rdev, &stag, php->pdid, + mhp->attr.pbl_size, mhp->attr.pbl_addr); + if (ret) + goto err2; + mhp->attr.pdid = php->pdid; + mhp->attr.type = FW_RI_STAG_NSMR; + mhp->attr.stag = stag; + mhp->attr.state = 1; + mmid = (stag) >> 8; + mhp->ibmr.rkey = mhp->ibmr.lkey = stag; + if (insert_handle(rhp, &rhp->mmidr, mhp, mmid)) + goto err3; + + PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag); + return &(mhp->ibmr); +err3: + dereg_mem(&rhp->rdev, stag, mhp->attr.pbl_size, + mhp->attr.pbl_addr); +err2: + c4iw_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr, + mhp->attr.pbl_size << 3); +err1: + kfree(mhp); +err: + return ERR_PTR(ret); +} + +struct ib_fast_reg_page_list *c4iw_alloc_fastreg_pbl(struct ib_device *device, + int page_list_len) +{ + struct c4iw_fr_page_list *c4pl; + struct c4iw_dev *dev = to_c4iw_dev(device); + dma_addr_t dma_addr; + int size = sizeof *c4pl + page_list_len * sizeof(u64); + + if (page_list_len > T4_MAX_FR_DEPTH) + return ERR_PTR(-EINVAL); + + c4pl = dma_alloc_coherent(&dev->rdev.lldi.pdev->dev, size, + &dma_addr, GFP_KERNEL); + if (!c4pl) + return ERR_PTR(-ENOMEM); + + pci_unmap_addr_set(c4pl, mapping, dma_addr); + c4pl->dma_addr = dma_addr; + c4pl->dev = dev; + c4pl->size = size; + c4pl->ibpl.page_list = (u64 *)(c4pl + 1); + c4pl->ibpl.max_page_list_len = page_list_len; + + return &c4pl->ibpl; +} + +void c4iw_free_fastreg_pbl(struct ib_fast_reg_page_list *ibpl) +{ + struct c4iw_fr_page_list *c4pl = to_c4iw_fr_page_list(ibpl); + + dma_free_coherent(&c4pl->dev->rdev.lldi.pdev->dev, c4pl->size, + c4pl, pci_unmap_addr(c4pl, mapping)); +} + +int c4iw_dereg_mr(struct ib_mr *ib_mr) +{ + struct c4iw_dev *rhp; + struct c4iw_mr *mhp; + u32 mmid; + + PDBG("%s ib_mr %p\n", __func__, ib_mr); + /* There can be no memory windows */ + if (atomic_read(&ib_mr->usecnt)) + return -EINVAL; + + mhp = to_c4iw_mr(ib_mr); + rhp = mhp->rhp; + mmid = mhp->attr.stag >> 8; + dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size, + mhp->attr.pbl_addr); + if (mhp->attr.pbl_size) + c4iw_pblpool_free(&mhp->rhp->rdev, mhp->attr.pbl_addr, + mhp->attr.pbl_size << 3); + remove_handle(rhp, &rhp->mmidr, mmid); + if (mhp->kva) + kfree((void *) (unsigned long) mhp->kva); + if (mhp->umem) + ib_umem_release(mhp->umem); + PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp); + kfree(mhp); + return 0; +} diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c new file mode 100644 index 000000000000..dfc49020bb9c --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -0,0 +1,518 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/device.h> +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/ethtool.h> +#include <linux/rtnetlink.h> +#include <linux/inetdevice.h> +#include <linux/io.h> + +#include <asm/irq.h> +#include <asm/byteorder.h> + +#include <rdma/iw_cm.h> +#include <rdma/ib_verbs.h> +#include <rdma/ib_smi.h> +#include <rdma/ib_umem.h> +#include <rdma/ib_user_verbs.h> + +#include "iw_cxgb4.h" + +static int fastreg_support; +module_param(fastreg_support, int, 0644); +MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=0)"); + +static int c4iw_modify_port(struct ib_device *ibdev, + u8 port, int port_modify_mask, + struct ib_port_modify *props) +{ + return -ENOSYS; +} + +static struct ib_ah *c4iw_ah_create(struct ib_pd *pd, + struct ib_ah_attr *ah_attr) +{ + return ERR_PTR(-ENOSYS); +} + +static int c4iw_ah_destroy(struct ib_ah *ah) +{ + return -ENOSYS; +} + +static int c4iw_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) +{ + return -ENOSYS; +} + +static int c4iw_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) +{ + return -ENOSYS; +} + +static int c4iw_process_mad(struct ib_device *ibdev, int mad_flags, + u8 port_num, struct ib_wc *in_wc, + struct ib_grh *in_grh, struct ib_mad *in_mad, + struct ib_mad *out_mad) +{ + return -ENOSYS; +} + +static int c4iw_dealloc_ucontext(struct ib_ucontext *context) +{ + struct c4iw_dev *rhp = to_c4iw_dev(context->device); + struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context); + struct c4iw_mm_entry *mm, *tmp; + + PDBG("%s context %p\n", __func__, context); + list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) + kfree(mm); + c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx); + kfree(ucontext); + return 0; +} + +static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev, + struct ib_udata *udata) +{ + struct c4iw_ucontext *context; + struct c4iw_dev *rhp = to_c4iw_dev(ibdev); + + PDBG("%s ibdev %p\n", __func__, ibdev); + context = kzalloc(sizeof(*context), GFP_KERNEL); + if (!context) + return ERR_PTR(-ENOMEM); + c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx); + INIT_LIST_HEAD(&context->mmaps); + spin_lock_init(&context->mmap_lock); + return &context->ibucontext; +} + +static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) +{ + int len = vma->vm_end - vma->vm_start; + u32 key = vma->vm_pgoff << PAGE_SHIFT; + struct c4iw_rdev *rdev; + int ret = 0; + struct c4iw_mm_entry *mm; + struct c4iw_ucontext *ucontext; + u64 addr; + + PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, + key, len); + + if (vma->vm_start & (PAGE_SIZE-1)) + return -EINVAL; + + rdev = &(to_c4iw_dev(context->device)->rdev); + ucontext = to_c4iw_ucontext(context); + + mm = remove_mmap(ucontext, key, len); + if (!mm) + return -EINVAL; + addr = mm->addr; + kfree(mm); + + if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) && + (addr < (pci_resource_start(rdev->lldi.pdev, 2) + + pci_resource_len(rdev->lldi.pdev, 2)))) { + + /* + * Map T4 DB register. + */ + if (vma->vm_flags & VM_READ) + return -EPERM; + + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND; + vma->vm_flags &= ~VM_MAYREAD; + ret = io_remap_pfn_range(vma, vma->vm_start, + addr >> PAGE_SHIFT, + len, vma->vm_page_prot); + } else { + + /* + * Map WQ or CQ contig dma memory... + */ + ret = remap_pfn_range(vma, vma->vm_start, + addr >> PAGE_SHIFT, + len, vma->vm_page_prot); + } + + return ret; +} + +static int c4iw_deallocate_pd(struct ib_pd *pd) +{ + struct c4iw_dev *rhp; + struct c4iw_pd *php; + + php = to_c4iw_pd(pd); + rhp = php->rhp; + PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); + c4iw_put_resource(&rhp->rdev.resource.pdid_fifo, php->pdid, + &rhp->rdev.resource.pdid_fifo_lock); + kfree(php); + return 0; +} + +static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev, + struct ib_ucontext *context, + struct ib_udata *udata) +{ + struct c4iw_pd *php; + u32 pdid; + struct c4iw_dev *rhp; + + PDBG("%s ibdev %p\n", __func__, ibdev); + rhp = (struct c4iw_dev *) ibdev; + pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_fifo, + &rhp->rdev.resource.pdid_fifo_lock); + if (!pdid) + return ERR_PTR(-EINVAL); + php = kzalloc(sizeof(*php), GFP_KERNEL); + if (!php) { + c4iw_put_resource(&rhp->rdev.resource.pdid_fifo, pdid, + &rhp->rdev.resource.pdid_fifo_lock); + return ERR_PTR(-ENOMEM); + } + php->pdid = pdid; + php->rhp = rhp; + if (context) { + if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) { + c4iw_deallocate_pd(&php->ibpd); + return ERR_PTR(-EFAULT); + } + } + PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); + return &php->ibpd; +} + +static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index, + u16 *pkey) +{ + PDBG("%s ibdev %p\n", __func__, ibdev); + *pkey = 0; + return 0; +} + +static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index, + union ib_gid *gid) +{ + struct c4iw_dev *dev; + + PDBG("%s ibdev %p, port %d, index %d, gid %p\n", + __func__, ibdev, port, index, gid); + dev = to_c4iw_dev(ibdev); + BUG_ON(port == 0); + memset(&(gid->raw[0]), 0, sizeof(gid->raw)); + memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6); + return 0; +} + +static int c4iw_query_device(struct ib_device *ibdev, + struct ib_device_attr *props) +{ + + struct c4iw_dev *dev; + PDBG("%s ibdev %p\n", __func__, ibdev); + + dev = to_c4iw_dev(ibdev); + memset(props, 0, sizeof *props); + memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); + props->hw_ver = dev->rdev.lldi.adapter_type; + props->fw_ver = dev->rdev.lldi.fw_vers; + props->device_cap_flags = dev->device_cap_flags; + props->page_size_cap = T4_PAGESIZE_MASK; + props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; + props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; + props->max_mr_size = T4_MAX_MR_SIZE; + props->max_qp = T4_MAX_NUM_QP; + props->max_qp_wr = T4_MAX_QP_DEPTH; + props->max_sge = T4_MAX_RECV_SGE; + props->max_sge_rd = 1; + props->max_qp_rd_atom = c4iw_max_read_depth; + props->max_qp_init_rd_atom = c4iw_max_read_depth; + props->max_cq = T4_MAX_NUM_CQ; + props->max_cqe = T4_MAX_CQ_DEPTH; + props->max_mr = c4iw_num_stags(&dev->rdev); + props->max_pd = T4_MAX_NUM_PD; + props->local_ca_ack_delay = 0; + props->max_fast_reg_page_list_len = T4_MAX_FR_DEPTH; + + return 0; +} + +static int c4iw_query_port(struct ib_device *ibdev, u8 port, + struct ib_port_attr *props) +{ + struct c4iw_dev *dev; + struct net_device *netdev; + struct in_device *inetdev; + + PDBG("%s ibdev %p\n", __func__, ibdev); + + dev = to_c4iw_dev(ibdev); + netdev = dev->rdev.lldi.ports[port-1]; + + memset(props, 0, sizeof(struct ib_port_attr)); + props->max_mtu = IB_MTU_4096; + if (netdev->mtu >= 4096) + props->active_mtu = IB_MTU_4096; + else if (netdev->mtu >= 2048) + props->active_mtu = IB_MTU_2048; + else if (netdev->mtu >= 1024) + props->active_mtu = IB_MTU_1024; + else if (netdev->mtu >= 512) + props->active_mtu = IB_MTU_512; + else + props->active_mtu = IB_MTU_256; + + if (!netif_carrier_ok(netdev)) + props->state = IB_PORT_DOWN; + else { + inetdev = in_dev_get(netdev); + if (inetdev) { + if (inetdev->ifa_list) + props->state = IB_PORT_ACTIVE; + else + props->state = IB_PORT_INIT; + in_dev_put(inetdev); + } else + props->state = IB_PORT_INIT; + } + + props->port_cap_flags = + IB_PORT_CM_SUP | + IB_PORT_SNMP_TUNNEL_SUP | + IB_PORT_REINIT_SUP | + IB_PORT_DEVICE_MGMT_SUP | + IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; + props->gid_tbl_len = 1; + props->pkey_tbl_len = 1; + props->active_width = 2; + props->active_speed = 2; + props->max_msg_sz = -1; + + return 0; +} + +static ssize_t show_rev(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, + ibdev.dev); + PDBG("%s dev 0x%p\n", __func__, dev); + return sprintf(buf, "%d\n", c4iw_dev->rdev.lldi.adapter_type); +} + +static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, + ibdev.dev); + PDBG("%s dev 0x%p\n", __func__, dev); + + return sprintf(buf, "%u.%u.%u.%u\n", + FW_HDR_FW_VER_MAJOR_GET(c4iw_dev->rdev.lldi.fw_vers), + FW_HDR_FW_VER_MINOR_GET(c4iw_dev->rdev.lldi.fw_vers), + FW_HDR_FW_VER_MICRO_GET(c4iw_dev->rdev.lldi.fw_vers), + FW_HDR_FW_VER_BUILD_GET(c4iw_dev->rdev.lldi.fw_vers)); +} + +static ssize_t show_hca(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, + ibdev.dev); + struct ethtool_drvinfo info; + struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0]; + + PDBG("%s dev 0x%p\n", __func__, dev); + lldev->ethtool_ops->get_drvinfo(lldev, &info); + return sprintf(buf, "%s\n", info.driver); +} + +static ssize_t show_board(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, + ibdev.dev); + PDBG("%s dev 0x%p\n", __func__, dev); + return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor, + c4iw_dev->rdev.lldi.pdev->device); +} + +static int c4iw_get_mib(struct ib_device *ibdev, + union rdma_protocol_stats *stats) +{ + return -ENOSYS; +} + +static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); +static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); +static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); +static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); + +static struct device_attribute *c4iw_class_attributes[] = { + &dev_attr_hw_rev, + &dev_attr_fw_ver, + &dev_attr_hca_type, + &dev_attr_board_id, +}; + +int c4iw_register_device(struct c4iw_dev *dev) +{ + int ret; + int i; + + PDBG("%s c4iw_dev %p\n", __func__, dev); + BUG_ON(!dev->rdev.lldi.ports[0]); + strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX); + memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); + memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); + dev->ibdev.owner = THIS_MODULE; + dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; + if (fastreg_support) + dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; + dev->ibdev.local_dma_lkey = 0; + dev->ibdev.uverbs_cmd_mask = + (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | + (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | + (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | + (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | + (1ull << IB_USER_VERBS_CMD_REG_MR) | + (1ull << IB_USER_VERBS_CMD_DEREG_MR) | + (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | + (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | + (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | + (1ull << IB_USER_VERBS_CMD_CREATE_QP) | + (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | + (1ull << IB_USER_VERBS_CMD_POLL_CQ) | + (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | + (1ull << IB_USER_VERBS_CMD_POST_SEND) | + (1ull << IB_USER_VERBS_CMD_POST_RECV); + dev->ibdev.node_type = RDMA_NODE_RNIC; + memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC)); + dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports; + dev->ibdev.num_comp_vectors = 1; + dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev); + dev->ibdev.query_device = c4iw_query_device; + dev->ibdev.query_port = c4iw_query_port; + dev->ibdev.modify_port = c4iw_modify_port; + dev->ibdev.query_pkey = c4iw_query_pkey; + dev->ibdev.query_gid = c4iw_query_gid; + dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext; + dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext; + dev->ibdev.mmap = c4iw_mmap; + dev->ibdev.alloc_pd = c4iw_allocate_pd; + dev->ibdev.dealloc_pd = c4iw_deallocate_pd; + dev->ibdev.create_ah = c4iw_ah_create; + dev->ibdev.destroy_ah = c4iw_ah_destroy; + dev->ibdev.create_qp = c4iw_create_qp; + dev->ibdev.modify_qp = c4iw_ib_modify_qp; + dev->ibdev.destroy_qp = c4iw_destroy_qp; + dev->ibdev.create_cq = c4iw_create_cq; + dev->ibdev.destroy_cq = c4iw_destroy_cq; + dev->ibdev.resize_cq = c4iw_resize_cq; + dev->ibdev.poll_cq = c4iw_poll_cq; + dev->ibdev.get_dma_mr = c4iw_get_dma_mr; + dev->ibdev.reg_phys_mr = c4iw_register_phys_mem; + dev->ibdev.rereg_phys_mr = c4iw_reregister_phys_mem; + dev->ibdev.reg_user_mr = c4iw_reg_user_mr; + dev->ibdev.dereg_mr = c4iw_dereg_mr; + dev->ibdev.alloc_mw = c4iw_alloc_mw; + dev->ibdev.bind_mw = c4iw_bind_mw; + dev->ibdev.dealloc_mw = c4iw_dealloc_mw; + dev->ibdev.alloc_fast_reg_mr = c4iw_alloc_fast_reg_mr; + dev->ibdev.alloc_fast_reg_page_list = c4iw_alloc_fastreg_pbl; + dev->ibdev.free_fast_reg_page_list = c4iw_free_fastreg_pbl; + dev->ibdev.attach_mcast = c4iw_multicast_attach; + dev->ibdev.detach_mcast = c4iw_multicast_detach; + dev->ibdev.process_mad = c4iw_process_mad; + dev->ibdev.req_notify_cq = c4iw_arm_cq; + dev->ibdev.post_send = c4iw_post_send; + dev->ibdev.post_recv = c4iw_post_receive; + dev->ibdev.get_protocol_stats = c4iw_get_mib; + + dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); + if (!dev->ibdev.iwcm) + return -ENOMEM; + + dev->ibdev.iwcm->connect = c4iw_connect; + dev->ibdev.iwcm->accept = c4iw_accept_cr; + dev->ibdev.iwcm->reject = c4iw_reject_cr; + dev->ibdev.iwcm->create_listen = c4iw_create_listen; + dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen; + dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref; + dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref; + dev->ibdev.iwcm->get_qp = c4iw_get_qp; + + ret = ib_register_device(&dev->ibdev); + if (ret) + goto bail1; + + for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) { + ret = device_create_file(&dev->ibdev.dev, + c4iw_class_attributes[i]); + if (ret) + goto bail2; + } + return 0; +bail2: + ib_unregister_device(&dev->ibdev); +bail1: + kfree(dev->ibdev.iwcm); + return ret; +} + +void c4iw_unregister_device(struct c4iw_dev *dev) +{ + int i; + + PDBG("%s c4iw_dev %p\n", __func__, dev); + for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) + device_remove_file(&dev->ibdev.dev, + c4iw_class_attributes[i]); + ib_unregister_device(&dev->ibdev); + kfree(dev->ibdev.iwcm); + return; +} diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c new file mode 100644 index 000000000000..83a01dc0c4c1 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -0,0 +1,1577 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "iw_cxgb4.h" + +static int destroy_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, + struct c4iw_dev_ucontext *uctx) +{ + /* + * uP clears EQ contexts when the connection exits rdma mode, + * so no need to post a RESET WR for these EQs. + */ + dma_free_coherent(&(rdev->lldi.pdev->dev), + wq->rq.memsize, wq->rq.queue, + pci_unmap_addr(&wq->rq, mapping)); + dma_free_coherent(&(rdev->lldi.pdev->dev), + wq->sq.memsize, wq->sq.queue, + pci_unmap_addr(&wq->sq, mapping)); + c4iw_rqtpool_free(rdev, wq->rq.rqt_hwaddr, wq->rq.rqt_size); + kfree(wq->rq.sw_rq); + kfree(wq->sq.sw_sq); + c4iw_put_qpid(rdev, wq->rq.qid, uctx); + c4iw_put_qpid(rdev, wq->sq.qid, uctx); + return 0; +} + +static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, + struct t4_cq *rcq, struct t4_cq *scq, + struct c4iw_dev_ucontext *uctx) +{ + int user = (uctx != &rdev->uctx); + struct fw_ri_res_wr *res_wr; + struct fw_ri_res *res; + int wr_len; + struct c4iw_wr_wait wr_wait; + struct sk_buff *skb; + int ret; + int eqsize; + + wq->sq.qid = c4iw_get_qpid(rdev, uctx); + if (!wq->sq.qid) + return -ENOMEM; + + wq->rq.qid = c4iw_get_qpid(rdev, uctx); + if (!wq->rq.qid) + goto err1; + + if (!user) { + wq->sq.sw_sq = kzalloc(wq->sq.size * sizeof *wq->sq.sw_sq, + GFP_KERNEL); + if (!wq->sq.sw_sq) + goto err2; + + wq->rq.sw_rq = kzalloc(wq->rq.size * sizeof *wq->rq.sw_rq, + GFP_KERNEL); + if (!wq->rq.sw_rq) + goto err3; + } + + /* + * RQT must be a power of 2. + */ + wq->rq.rqt_size = roundup_pow_of_two(wq->rq.size); + wq->rq.rqt_hwaddr = c4iw_rqtpool_alloc(rdev, wq->rq.rqt_size); + if (!wq->rq.rqt_hwaddr) + goto err4; + + wq->sq.queue = dma_alloc_coherent(&(rdev->lldi.pdev->dev), + wq->sq.memsize, &(wq->sq.dma_addr), + GFP_KERNEL); + if (!wq->sq.queue) + goto err5; + memset(wq->sq.queue, 0, wq->sq.memsize); + pci_unmap_addr_set(&wq->sq, mapping, wq->sq.dma_addr); + + wq->rq.queue = dma_alloc_coherent(&(rdev->lldi.pdev->dev), + wq->rq.memsize, &(wq->rq.dma_addr), + GFP_KERNEL); + if (!wq->rq.queue) + goto err6; + PDBG("%s sq base va 0x%p pa 0x%llx rq base va 0x%p pa 0x%llx\n", + __func__, wq->sq.queue, + (unsigned long long)virt_to_phys(wq->sq.queue), + wq->rq.queue, + (unsigned long long)virt_to_phys(wq->rq.queue)); + memset(wq->rq.queue, 0, wq->rq.memsize); + pci_unmap_addr_set(&wq->rq, mapping, wq->rq.dma_addr); + + wq->db = rdev->lldi.db_reg; + wq->gts = rdev->lldi.gts_reg; + if (user) { + wq->sq.udb = (u64)pci_resource_start(rdev->lldi.pdev, 2) + + (wq->sq.qid << rdev->qpshift); + wq->sq.udb &= PAGE_MASK; + wq->rq.udb = (u64)pci_resource_start(rdev->lldi.pdev, 2) + + (wq->rq.qid << rdev->qpshift); + wq->rq.udb &= PAGE_MASK; + } + wq->rdev = rdev; + wq->rq.msn = 1; + + /* build fw_ri_res_wr */ + wr_len = sizeof *res_wr + 2 * sizeof *res; + + skb = alloc_skb(wr_len, GFP_KERNEL | __GFP_NOFAIL); + if (!skb) { + ret = -ENOMEM; + goto err7; + } + set_wr_txq(skb, CPL_PRIORITY_CONTROL, 0); + + res_wr = (struct fw_ri_res_wr *)__skb_put(skb, wr_len); + memset(res_wr, 0, wr_len); + res_wr->op_nres = cpu_to_be32( + FW_WR_OP(FW_RI_RES_WR) | + V_FW_RI_RES_WR_NRES(2) | + FW_WR_COMPL(1)); + res_wr->len16_pkd = cpu_to_be32(DIV_ROUND_UP(wr_len, 16)); + res_wr->cookie = (u64)&wr_wait; + res = res_wr->res; + res->u.sqrq.restype = FW_RI_RES_TYPE_SQ; + res->u.sqrq.op = FW_RI_RES_OP_WRITE; + + /* + * eqsize is the number of 64B entries plus the status page size. + */ + eqsize = wq->sq.size * T4_SQ_NUM_SLOTS + T4_EQ_STATUS_ENTRIES; + + res->u.sqrq.fetchszm_to_iqid = cpu_to_be32( + V_FW_RI_RES_WR_HOSTFCMODE(0) | /* no host cidx updates */ + V_FW_RI_RES_WR_CPRIO(0) | /* don't keep in chip cache */ + V_FW_RI_RES_WR_PCIECHN(0) | /* set by uP at ri_init time */ + V_FW_RI_RES_WR_IQID(scq->cqid)); + res->u.sqrq.dcaen_to_eqsize = cpu_to_be32( + V_FW_RI_RES_WR_DCAEN(0) | + V_FW_RI_RES_WR_DCACPU(0) | + V_FW_RI_RES_WR_FBMIN(3) | + V_FW_RI_RES_WR_FBMAX(3) | + V_FW_RI_RES_WR_CIDXFTHRESHO(0) | + V_FW_RI_RES_WR_CIDXFTHRESH(0) | + V_FW_RI_RES_WR_EQSIZE(eqsize)); + res->u.sqrq.eqid = cpu_to_be32(wq->sq.qid); + res->u.sqrq.eqaddr = cpu_to_be64(wq->sq.dma_addr); + res++; + res->u.sqrq.restype = FW_RI_RES_TYPE_RQ; + res->u.sqrq.op = FW_RI_RES_OP_WRITE; + + /* + * eqsize is the number of 64B entries plus the status page size. + */ + eqsize = wq->rq.size * T4_RQ_NUM_SLOTS + T4_EQ_STATUS_ENTRIES; + res->u.sqrq.fetchszm_to_iqid = cpu_to_be32( + V_FW_RI_RES_WR_HOSTFCMODE(0) | /* no host cidx updates */ + V_FW_RI_RES_WR_CPRIO(0) | /* don't keep in chip cache */ + V_FW_RI_RES_WR_PCIECHN(0) | /* set by uP at ri_init time */ + V_FW_RI_RES_WR_IQID(rcq->cqid)); + res->u.sqrq.dcaen_to_eqsize = cpu_to_be32( + V_FW_RI_RES_WR_DCAEN(0) | + V_FW_RI_RES_WR_DCACPU(0) | + V_FW_RI_RES_WR_FBMIN(3) | + V_FW_RI_RES_WR_FBMAX(3) | + V_FW_RI_RES_WR_CIDXFTHRESHO(0) | + V_FW_RI_RES_WR_CIDXFTHRESH(0) | + V_FW_RI_RES_WR_EQSIZE(eqsize)); + res->u.sqrq.eqid = cpu_to_be32(wq->rq.qid); + res->u.sqrq.eqaddr = cpu_to_be64(wq->rq.dma_addr); + + c4iw_init_wr_wait(&wr_wait); + + ret = c4iw_ofld_send(rdev, skb); + if (ret) + goto err7; + wait_event_timeout(wr_wait.wait, wr_wait.done, C4IW_WR_TO); + if (!wr_wait.done) { + printk(KERN_ERR MOD "Device %s not responding!\n", + pci_name(rdev->lldi.pdev)); + rdev->flags = T4_FATAL_ERROR; + ret = -EIO; + } else + ret = wr_wait.ret; + if (ret) + goto err7; + + PDBG("%s sqid 0x%x rqid 0x%x kdb 0x%p squdb 0x%llx rqudb 0x%llx\n", + __func__, wq->sq.qid, wq->rq.qid, wq->db, + (unsigned long long)wq->sq.udb, (unsigned long long)wq->rq.udb); + + return 0; +err7: + dma_free_coherent(&(rdev->lldi.pdev->dev), + wq->rq.memsize, wq->rq.queue, + pci_unmap_addr(&wq->rq, mapping)); +err6: + dma_free_coherent(&(rdev->lldi.pdev->dev), + wq->sq.memsize, wq->sq.queue, + pci_unmap_addr(&wq->sq, mapping)); +err5: + c4iw_rqtpool_free(rdev, wq->rq.rqt_hwaddr, wq->rq.rqt_size); +err4: + kfree(wq->rq.sw_rq); +err3: + kfree(wq->sq.sw_sq); +err2: + c4iw_put_qpid(rdev, wq->rq.qid, uctx); +err1: + c4iw_put_qpid(rdev, wq->sq.qid, uctx); + return -ENOMEM; +} + +static int build_rdma_send(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16) +{ + int i; + u32 plen; + int size; + u8 *datap; + + if (wr->num_sge > T4_MAX_SEND_SGE) + return -EINVAL; + switch (wr->opcode) { + case IB_WR_SEND: + if (wr->send_flags & IB_SEND_SOLICITED) + wqe->send.sendop_pkd = cpu_to_be32( + V_FW_RI_SEND_WR_SENDOP(FW_RI_SEND_WITH_SE)); + else + wqe->send.sendop_pkd = cpu_to_be32( + V_FW_RI_SEND_WR_SENDOP(FW_RI_SEND)); + wqe->send.stag_inv = 0; + break; + case IB_WR_SEND_WITH_INV: + if (wr->send_flags & IB_SEND_SOLICITED) + wqe->send.sendop_pkd = cpu_to_be32( + V_FW_RI_SEND_WR_SENDOP(FW_RI_SEND_WITH_SE_INV)); + else + wqe->send.sendop_pkd = cpu_to_be32( + V_FW_RI_SEND_WR_SENDOP(FW_RI_SEND_WITH_INV)); + wqe->send.stag_inv = cpu_to_be32(wr->ex.invalidate_rkey); + break; + + default: + return -EINVAL; + } + plen = 0; + if (wr->num_sge) { + if (wr->send_flags & IB_SEND_INLINE) { + datap = (u8 *)wqe->send.u.immd_src[0].data; + for (i = 0; i < wr->num_sge; i++) { + if ((plen + wr->sg_list[i].length) > + T4_MAX_SEND_INLINE) { + return -EMSGSIZE; + } + plen += wr->sg_list[i].length; + memcpy(datap, + (void *)(unsigned long)wr->sg_list[i].addr, + wr->sg_list[i].length); + datap += wr->sg_list[i].length; + } + wqe->send.u.immd_src[0].op = FW_RI_DATA_IMMD; + wqe->send.u.immd_src[0].r1 = 0; + wqe->send.u.immd_src[0].r2 = 0; + wqe->send.u.immd_src[0].immdlen = cpu_to_be32(plen); + size = sizeof wqe->send + sizeof(struct fw_ri_immd) + + plen; + } else { + for (i = 0; i < wr->num_sge; i++) { + if ((plen + wr->sg_list[i].length) < plen) + return -EMSGSIZE; + plen += wr->sg_list[i].length; + wqe->send.u.isgl_src[0].sge[i].stag = + cpu_to_be32(wr->sg_list[i].lkey); + wqe->send.u.isgl_src[0].sge[i].len = + cpu_to_be32(wr->sg_list[i].length); + wqe->send.u.isgl_src[0].sge[i].to = + cpu_to_be64(wr->sg_list[i].addr); + } + wqe->send.u.isgl_src[0].op = FW_RI_DATA_ISGL; + wqe->send.u.isgl_src[0].r1 = 0; + wqe->send.u.isgl_src[0].nsge = cpu_to_be16(wr->num_sge); + wqe->send.u.isgl_src[0].r2 = 0; + size = sizeof wqe->send + sizeof(struct fw_ri_isgl) + + wr->num_sge * sizeof(struct fw_ri_sge); + } + } else { + wqe->send.u.immd_src[0].op = FW_RI_DATA_IMMD; + wqe->send.u.immd_src[0].r1 = 0; + wqe->send.u.immd_src[0].r2 = 0; + wqe->send.u.immd_src[0].immdlen = 0; + size = sizeof wqe->send + sizeof(struct fw_ri_immd); + } + *len16 = DIV_ROUND_UP(size, 16); + wqe->send.plen = cpu_to_be32(plen); + return 0; +} + +static int build_rdma_write(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16) +{ + int i; + u32 plen; + int size; + u8 *datap; + + if (wr->num_sge > T4_MAX_WRITE_SGE) + return -EINVAL; + wqe->write.r2 = 0; + wqe->write.stag_sink = cpu_to_be32(wr->wr.rdma.rkey); + wqe->write.to_sink = cpu_to_be64(wr->wr.rdma.remote_addr); + plen = 0; + if (wr->num_sge) { + if (wr->send_flags & IB_SEND_INLINE) { + datap = (u8 *)wqe->write.u.immd_src[0].data; + for (i = 0; i < wr->num_sge; i++) { + if ((plen + wr->sg_list[i].length) > + T4_MAX_WRITE_INLINE) { + return -EMSGSIZE; + } + plen += wr->sg_list[i].length; + memcpy(datap, + (void *)(unsigned long)wr->sg_list[i].addr, + wr->sg_list[i].length); + datap += wr->sg_list[i].length; + } + wqe->write.u.immd_src[0].op = FW_RI_DATA_IMMD; + wqe->write.u.immd_src[0].r1 = 0; + wqe->write.u.immd_src[0].r2 = 0; + wqe->write.u.immd_src[0].immdlen = cpu_to_be32(plen); + size = sizeof wqe->write + sizeof(struct fw_ri_immd) + + plen; + } else { + for (i = 0; i < wr->num_sge; i++) { + if ((plen + wr->sg_list[i].length) < plen) + return -EMSGSIZE; + plen += wr->sg_list[i].length; + wqe->write.u.isgl_src[0].sge[i].stag = + cpu_to_be32(wr->sg_list[i].lkey); + wqe->write.u.isgl_src[0].sge[i].len = + cpu_to_be32(wr->sg_list[i].length); + wqe->write.u.isgl_src[0].sge[i].to = + cpu_to_be64(wr->sg_list[i].addr); + } + wqe->write.u.isgl_src[0].op = FW_RI_DATA_ISGL; + wqe->write.u.isgl_src[0].r1 = 0; + wqe->write.u.isgl_src[0].nsge = + cpu_to_be16(wr->num_sge); + wqe->write.u.isgl_src[0].r2 = 0; + size = sizeof wqe->write + sizeof(struct fw_ri_isgl) + + wr->num_sge * sizeof(struct fw_ri_sge); + } + } else { + wqe->write.u.immd_src[0].op = FW_RI_DATA_IMMD; + wqe->write.u.immd_src[0].r1 = 0; + wqe->write.u.immd_src[0].r2 = 0; + wqe->write.u.immd_src[0].immdlen = 0; + size = sizeof wqe->write + sizeof(struct fw_ri_immd); + } + *len16 = DIV_ROUND_UP(size, 16); + wqe->write.plen = cpu_to_be32(plen); + return 0; +} + +static int build_rdma_read(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16) +{ + if (wr->num_sge > 1) + return -EINVAL; + if (wr->num_sge) { + wqe->read.stag_src = cpu_to_be32(wr->wr.rdma.rkey); + wqe->read.to_src_hi = cpu_to_be32((u32)(wr->wr.rdma.remote_addr + >> 32)); + wqe->read.to_src_lo = cpu_to_be32((u32)wr->wr.rdma.remote_addr); + wqe->read.stag_sink = cpu_to_be32(wr->sg_list[0].lkey); + wqe->read.plen = cpu_to_be32(wr->sg_list[0].length); + wqe->read.to_sink_hi = cpu_to_be32((u32)(wr->sg_list[0].addr + >> 32)); + wqe->read.to_sink_lo = cpu_to_be32((u32)(wr->sg_list[0].addr)); + } else { + wqe->read.stag_src = cpu_to_be32(2); + wqe->read.to_src_hi = 0; + wqe->read.to_src_lo = 0; + wqe->read.stag_sink = cpu_to_be32(2); + wqe->read.plen = 0; + wqe->read.to_sink_hi = 0; + wqe->read.to_sink_lo = 0; + } + wqe->read.r2 = 0; + wqe->read.r5 = 0; + *len16 = DIV_ROUND_UP(sizeof wqe->read, 16); + return 0; +} + +static int build_rdma_recv(struct c4iw_qp *qhp, union t4_recv_wr *wqe, + struct ib_recv_wr *wr, u8 *len16) +{ + int i; + int plen = 0; + + for (i = 0; i < wr->num_sge; i++) { + if ((plen + wr->sg_list[i].length) < plen) + return -EMSGSIZE; + plen += wr->sg_list[i].length; + wqe->recv.isgl.sge[i].stag = + cpu_to_be32(wr->sg_list[i].lkey); + wqe->recv.isgl.sge[i].len = + cpu_to_be32(wr->sg_list[i].length); + wqe->recv.isgl.sge[i].to = + cpu_to_be64(wr->sg_list[i].addr); + } + for (; i < T4_MAX_RECV_SGE; i++) { + wqe->recv.isgl.sge[i].stag = 0; + wqe->recv.isgl.sge[i].len = 0; + wqe->recv.isgl.sge[i].to = 0; + } + wqe->recv.isgl.op = FW_RI_DATA_ISGL; + wqe->recv.isgl.r1 = 0; + wqe->recv.isgl.nsge = cpu_to_be16(wr->num_sge); + wqe->recv.isgl.r2 = 0; + *len16 = DIV_ROUND_UP(sizeof wqe->recv + + wr->num_sge * sizeof(struct fw_ri_sge), 16); + return 0; +} + +static int build_fastreg(union t4_wr *wqe, struct ib_send_wr *wr, u8 *len16) +{ + + struct fw_ri_immd *imdp; + __be64 *p; + int i; + int pbllen = roundup(wr->wr.fast_reg.page_list_len * sizeof(u64), 32); + + if (wr->wr.fast_reg.page_list_len > T4_MAX_FR_DEPTH) + return -EINVAL; + + wqe->fr.qpbinde_to_dcacpu = 0; + wqe->fr.pgsz_shift = wr->wr.fast_reg.page_shift - 12; + wqe->fr.addr_type = FW_RI_VA_BASED_TO; + wqe->fr.mem_perms = c4iw_ib_to_tpt_access(wr->wr.fast_reg.access_flags); + wqe->fr.len_hi = 0; + wqe->fr.len_lo = cpu_to_be32(wr->wr.fast_reg.length); + wqe->fr.stag = cpu_to_be32(wr->wr.fast_reg.rkey); + wqe->fr.va_hi = cpu_to_be32(wr->wr.fast_reg.iova_start >> 32); + wqe->fr.va_lo_fbo = cpu_to_be32(wr->wr.fast_reg.iova_start & + 0xffffffff); + if (pbllen > T4_MAX_FR_IMMD) { + struct c4iw_fr_page_list *c4pl = + to_c4iw_fr_page_list(wr->wr.fast_reg.page_list); + struct fw_ri_dsgl *sglp; + + sglp = (struct fw_ri_dsgl *)(&wqe->fr + 1); + sglp->op = FW_RI_DATA_DSGL; + sglp->r1 = 0; + sglp->nsge = cpu_to_be16(1); + sglp->addr0 = cpu_to_be64(c4pl->dma_addr); + sglp->len0 = cpu_to_be32(pbllen); + + *len16 = DIV_ROUND_UP(sizeof wqe->fr + sizeof *sglp, 16); + } else { + imdp = (struct fw_ri_immd *)(&wqe->fr + 1); + imdp->op = FW_RI_DATA_IMMD; + imdp->r1 = 0; + imdp->r2 = 0; + imdp->immdlen = cpu_to_be32(pbllen); + p = (__be64 *)(imdp + 1); + for (i = 0; i < wr->wr.fast_reg.page_list_len; i++, p++) + *p = cpu_to_be64( + (u64)wr->wr.fast_reg.page_list->page_list[i]); + *len16 = DIV_ROUND_UP(sizeof wqe->fr + sizeof *imdp + pbllen, + 16); + } + return 0; +} + +static int build_inv_stag(union t4_wr *wqe, struct ib_send_wr *wr, + u8 *len16) +{ + wqe->inv.stag_inv = cpu_to_be32(wr->ex.invalidate_rkey); + wqe->inv.r2 = 0; + *len16 = DIV_ROUND_UP(sizeof wqe->inv, 16); + return 0; +} + +void c4iw_qp_add_ref(struct ib_qp *qp) +{ + PDBG("%s ib_qp %p\n", __func__, qp); + atomic_inc(&(to_c4iw_qp(qp)->refcnt)); +} + +void c4iw_qp_rem_ref(struct ib_qp *qp) +{ + PDBG("%s ib_qp %p\n", __func__, qp); + if (atomic_dec_and_test(&(to_c4iw_qp(qp)->refcnt))) + wake_up(&(to_c4iw_qp(qp)->wait)); +} + +int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, + struct ib_send_wr **bad_wr) +{ + int err = 0; + u8 len16 = 0; + enum fw_wr_opcodes fw_opcode = 0; + enum fw_ri_wr_flags fw_flags; + struct c4iw_qp *qhp; + union t4_wr *wqe; + u32 num_wrs; + struct t4_swsqe *swsqe; + unsigned long flag; + u16 idx = 0; + + qhp = to_c4iw_qp(ibqp); + spin_lock_irqsave(&qhp->lock, flag); + if (t4_wq_in_error(&qhp->wq)) { + spin_unlock_irqrestore(&qhp->lock, flag); + return -EINVAL; + } + num_wrs = t4_sq_avail(&qhp->wq); + if (num_wrs == 0) { + spin_unlock_irqrestore(&qhp->lock, flag); + return -ENOMEM; + } + while (wr) { + if (num_wrs == 0) { + err = -ENOMEM; + *bad_wr = wr; + break; + } + wqe = &qhp->wq.sq.queue[qhp->wq.sq.pidx]; + fw_flags = 0; + if (wr->send_flags & IB_SEND_SOLICITED) + fw_flags |= FW_RI_SOLICITED_EVENT_FLAG; + if (wr->send_flags & IB_SEND_SIGNALED) + fw_flags |= FW_RI_COMPLETION_FLAG; + swsqe = &qhp->wq.sq.sw_sq[qhp->wq.sq.pidx]; + switch (wr->opcode) { + case IB_WR_SEND_WITH_INV: + case IB_WR_SEND: + if (wr->send_flags & IB_SEND_FENCE) + fw_flags |= FW_RI_READ_FENCE_FLAG; + fw_opcode = FW_RI_SEND_WR; + if (wr->opcode == IB_WR_SEND) + swsqe->opcode = FW_RI_SEND; + else + swsqe->opcode = FW_RI_SEND_WITH_INV; + err = build_rdma_send(wqe, wr, &len16); + break; + case IB_WR_RDMA_WRITE: + fw_opcode = FW_RI_RDMA_WRITE_WR; + swsqe->opcode = FW_RI_RDMA_WRITE; + err = build_rdma_write(wqe, wr, &len16); + break; + case IB_WR_RDMA_READ: + fw_opcode = FW_RI_RDMA_READ_WR; + swsqe->opcode = FW_RI_READ_REQ; + fw_flags = 0; + err = build_rdma_read(wqe, wr, &len16); + if (err) + break; + swsqe->read_len = wr->sg_list[0].length; + if (!qhp->wq.sq.oldest_read) + qhp->wq.sq.oldest_read = swsqe; + break; + case IB_WR_FAST_REG_MR: + fw_opcode = FW_RI_FR_NSMR_WR; + swsqe->opcode = FW_RI_FAST_REGISTER; + err = build_fastreg(wqe, wr, &len16); + break; + case IB_WR_LOCAL_INV: + fw_opcode = FW_RI_INV_LSTAG_WR; + swsqe->opcode = FW_RI_LOCAL_INV; + err = build_inv_stag(wqe, wr, &len16); + break; + default: + PDBG("%s post of type=%d TBD!\n", __func__, + wr->opcode); + err = -EINVAL; + } + if (err) { + *bad_wr = wr; + break; + } + swsqe->idx = qhp->wq.sq.pidx; + swsqe->complete = 0; + swsqe->signaled = (wr->send_flags & IB_SEND_SIGNALED); + swsqe->wr_id = wr->wr_id; + + init_wr_hdr(wqe, qhp->wq.sq.pidx, fw_opcode, fw_flags, len16); + + PDBG("%s cookie 0x%llx pidx 0x%x opcode 0x%x read_len %u\n", + __func__, (unsigned long long)wr->wr_id, qhp->wq.sq.pidx, + swsqe->opcode, swsqe->read_len); + wr = wr->next; + num_wrs--; + t4_sq_produce(&qhp->wq); + idx++; + } + if (t4_wq_db_enabled(&qhp->wq)) + t4_ring_sq_db(&qhp->wq, idx); + spin_unlock_irqrestore(&qhp->lock, flag); + return err; +} + +int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, + struct ib_recv_wr **bad_wr) +{ + int err = 0; + struct c4iw_qp *qhp; + union t4_recv_wr *wqe; + u32 num_wrs; + u8 len16 = 0; + unsigned long flag; + u16 idx = 0; + + qhp = to_c4iw_qp(ibqp); + spin_lock_irqsave(&qhp->lock, flag); + if (t4_wq_in_error(&qhp->wq)) { + spin_unlock_irqrestore(&qhp->lock, flag); + return -EINVAL; + } + num_wrs = t4_rq_avail(&qhp->wq); + if (num_wrs == 0) { + spin_unlock_irqrestore(&qhp->lock, flag); + return -ENOMEM; + } + while (wr) { + if (wr->num_sge > T4_MAX_RECV_SGE) { + err = -EINVAL; + *bad_wr = wr; + break; + } + wqe = &qhp->wq.rq.queue[qhp->wq.rq.pidx]; + if (num_wrs) + err = build_rdma_recv(qhp, wqe, wr, &len16); + else + err = -ENOMEM; + if (err) { + *bad_wr = wr; + break; + } + + qhp->wq.rq.sw_rq[qhp->wq.rq.pidx].wr_id = wr->wr_id; + + wqe->recv.opcode = FW_RI_RECV_WR; + wqe->recv.r1 = 0; + wqe->recv.wrid = qhp->wq.rq.pidx; + wqe->recv.r2[0] = 0; + wqe->recv.r2[1] = 0; + wqe->recv.r2[2] = 0; + wqe->recv.len16 = len16; + if (len16 < 5) + wqe->flits[8] = 0; + + PDBG("%s cookie 0x%llx pidx %u\n", __func__, + (unsigned long long) wr->wr_id, qhp->wq.rq.pidx); + t4_rq_produce(&qhp->wq); + wr = wr->next; + num_wrs--; + idx++; + } + if (t4_wq_db_enabled(&qhp->wq)) + t4_ring_rq_db(&qhp->wq, idx); + spin_unlock_irqrestore(&qhp->lock, flag); + return err; +} + +int c4iw_bind_mw(struct ib_qp *qp, struct ib_mw *mw, struct ib_mw_bind *mw_bind) +{ + return -ENOSYS; +} + +static inline void build_term_codes(struct t4_cqe *err_cqe, u8 *layer_type, + u8 *ecode) +{ + int status; + int tagged; + int opcode; + int rqtype; + int send_inv; + + if (!err_cqe) { + *layer_type = LAYER_RDMAP|DDP_LOCAL_CATA; + *ecode = 0; + return; + } + + status = CQE_STATUS(err_cqe); + opcode = CQE_OPCODE(err_cqe); + rqtype = RQ_TYPE(err_cqe); + send_inv = (opcode == FW_RI_SEND_WITH_INV) || + (opcode == FW_RI_SEND_WITH_SE_INV); + tagged = (opcode == FW_RI_RDMA_WRITE) || + (rqtype && (opcode == FW_RI_READ_RESP)); + + switch (status) { + case T4_ERR_STAG: + if (send_inv) { + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_OP; + *ecode = RDMAP_CANT_INV_STAG; + } else { + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT; + *ecode = RDMAP_INV_STAG; + } + break; + case T4_ERR_PDID: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT; + if ((opcode == FW_RI_SEND_WITH_INV) || + (opcode == FW_RI_SEND_WITH_SE_INV)) + *ecode = RDMAP_CANT_INV_STAG; + else + *ecode = RDMAP_STAG_NOT_ASSOC; + break; + case T4_ERR_QPID: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT; + *ecode = RDMAP_STAG_NOT_ASSOC; + break; + case T4_ERR_ACCESS: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT; + *ecode = RDMAP_ACC_VIOL; + break; + case T4_ERR_WRAP: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT; + *ecode = RDMAP_TO_WRAP; + break; + case T4_ERR_BOUND: + if (tagged) { + *layer_type = LAYER_DDP|DDP_TAGGED_ERR; + *ecode = DDPT_BASE_BOUNDS; + } else { + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT; + *ecode = RDMAP_BASE_BOUNDS; + } + break; + case T4_ERR_INVALIDATE_SHARED_MR: + case T4_ERR_INVALIDATE_MR_WITH_MW_BOUND: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_OP; + *ecode = RDMAP_CANT_INV_STAG; + break; + case T4_ERR_ECC: + case T4_ERR_ECC_PSTAG: + case T4_ERR_INTERNAL_ERR: + *layer_type = LAYER_RDMAP|RDMAP_LOCAL_CATA; + *ecode = 0; + break; + case T4_ERR_OUT_OF_RQE: + *layer_type = LAYER_DDP|DDP_UNTAGGED_ERR; + *ecode = DDPU_INV_MSN_NOBUF; + break; + case T4_ERR_PBL_ADDR_BOUND: + *layer_type = LAYER_DDP|DDP_TAGGED_ERR; + *ecode = DDPT_BASE_BOUNDS; + break; + case T4_ERR_CRC: + *layer_type = LAYER_MPA|DDP_LLP; + *ecode = MPA_CRC_ERR; + break; + case T4_ERR_MARKER: + *layer_type = LAYER_MPA|DDP_LLP; + *ecode = MPA_MARKER_ERR; + break; + case T4_ERR_PDU_LEN_ERR: + *layer_type = LAYER_DDP|DDP_UNTAGGED_ERR; + *ecode = DDPU_MSG_TOOBIG; + break; + case T4_ERR_DDP_VERSION: + if (tagged) { + *layer_type = LAYER_DDP|DDP_TAGGED_ERR; + *ecode = DDPT_INV_VERS; + } else { + *layer_type = LAYER_DDP|DDP_UNTAGGED_ERR; + *ecode = DDPU_INV_VERS; + } + break; + case T4_ERR_RDMA_VERSION: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_OP; + *ecode = RDMAP_INV_VERS; + break; + case T4_ERR_OPCODE: + *layer_type = LAYER_RDMAP|RDMAP_REMOTE_OP; + *ecode = RDMAP_INV_OPCODE; + break; + case T4_ERR_DDP_QUEUE_NUM: + *layer_type = LAYER_DDP|DDP_UNTAGGED_ERR; + *ecode = DDPU_INV_QN; + break; + case T4_ERR_MSN: + case T4_ERR_MSN_GAP: + case T4_ERR_MSN_RANGE: + case T4_ERR_IRD_OVERFLOW: + *layer_type = LAYER_DDP|DDP_UNTAGGED_ERR; + *ecode = DDPU_INV_MSN_RANGE; + break; + case T4_ERR_TBIT: + *layer_type = LAYER_DDP|DDP_LOCAL_CATA; + *ecode = 0; + break; + case T4_ERR_MO: + *layer_type = LAYER_DDP|DDP_UNTAGGED_ERR; + *ecode = DDPU_INV_MO; + break; + default: + *layer_type = LAYER_RDMAP|DDP_LOCAL_CATA; + *ecode = 0; + break; + } +} + +int c4iw_post_zb_read(struct c4iw_qp *qhp) +{ + union t4_wr *wqe; + struct sk_buff *skb; + u8 len16; + + PDBG("%s enter\n", __func__); + skb = alloc_skb(40, GFP_KERNEL); + if (!skb) { + printk(KERN_ERR "%s cannot send zb_read!!\n", __func__); + return -ENOMEM; + } + set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx); + + wqe = (union t4_wr *)skb_put(skb, sizeof wqe->read); + memset(wqe, 0, sizeof wqe->read); + wqe->read.r2 = cpu_to_be64(0); + wqe->read.stag_sink = cpu_to_be32(1); + wqe->read.to_sink_hi = cpu_to_be32(0); + wqe->read.to_sink_lo = cpu_to_be32(1); + wqe->read.stag_src = cpu_to_be32(1); + wqe->read.plen = cpu_to_be32(0); + wqe->read.to_src_hi = cpu_to_be32(0); + wqe->read.to_src_lo = cpu_to_be32(1); + len16 = DIV_ROUND_UP(sizeof wqe->read, 16); + init_wr_hdr(wqe, 0, FW_RI_RDMA_READ_WR, FW_RI_COMPLETION_FLAG, len16); + + return c4iw_ofld_send(&qhp->rhp->rdev, skb); +} + +static void post_terminate(struct c4iw_qp *qhp, struct t4_cqe *err_cqe, + gfp_t gfp) +{ + struct fw_ri_wr *wqe; + struct sk_buff *skb; + struct terminate_message *term; + + PDBG("%s qhp %p qid 0x%x tid %u\n", __func__, qhp, qhp->wq.sq.qid, + qhp->ep->hwtid); + + skb = alloc_skb(sizeof *wqe, gfp); + if (!skb) + return; + set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx); + + wqe = (struct fw_ri_wr *)__skb_put(skb, sizeof(*wqe)); + memset(wqe, 0, sizeof *wqe); + wqe->op_compl = cpu_to_be32(FW_WR_OP(FW_RI_INIT_WR)); + wqe->flowid_len16 = cpu_to_be32( + FW_WR_FLOWID(qhp->ep->hwtid) | + FW_WR_LEN16(DIV_ROUND_UP(sizeof *wqe, 16))); + + wqe->u.terminate.type = FW_RI_TYPE_TERMINATE; + wqe->u.terminate.immdlen = cpu_to_be32(sizeof *term); + term = (struct terminate_message *)wqe->u.terminate.termmsg; + build_term_codes(err_cqe, &term->layer_etype, &term->ecode); + c4iw_ofld_send(&qhp->rhp->rdev, skb); +} + +/* + * Assumes qhp lock is held. + */ +static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp, + struct c4iw_cq *schp, unsigned long *flag) +{ + int count; + int flushed; + + PDBG("%s qhp %p rchp %p schp %p\n", __func__, qhp, rchp, schp); + /* take a ref on the qhp since we must release the lock */ + atomic_inc(&qhp->refcnt); + spin_unlock_irqrestore(&qhp->lock, *flag); + + /* locking heirarchy: cq lock first, then qp lock. */ + spin_lock_irqsave(&rchp->lock, *flag); + spin_lock(&qhp->lock); + c4iw_flush_hw_cq(&rchp->cq); + c4iw_count_rcqes(&rchp->cq, &qhp->wq, &count); + flushed = c4iw_flush_rq(&qhp->wq, &rchp->cq, count); + spin_unlock(&qhp->lock); + spin_unlock_irqrestore(&rchp->lock, *flag); + if (flushed) + (*rchp->ibcq.comp_handler)(&rchp->ibcq, rchp->ibcq.cq_context); + + /* locking heirarchy: cq lock first, then qp lock. */ + spin_lock_irqsave(&schp->lock, *flag); + spin_lock(&qhp->lock); + c4iw_flush_hw_cq(&schp->cq); + c4iw_count_scqes(&schp->cq, &qhp->wq, &count); + flushed = c4iw_flush_sq(&qhp->wq, &schp->cq, count); + spin_unlock(&qhp->lock); + spin_unlock_irqrestore(&schp->lock, *flag); + if (flushed) + (*schp->ibcq.comp_handler)(&schp->ibcq, schp->ibcq.cq_context); + + /* deref */ + if (atomic_dec_and_test(&qhp->refcnt)) + wake_up(&qhp->wait); + + spin_lock_irqsave(&qhp->lock, *flag); +} + +static void flush_qp(struct c4iw_qp *qhp, unsigned long *flag) +{ + struct c4iw_cq *rchp, *schp; + + rchp = get_chp(qhp->rhp, qhp->attr.rcq); + schp = get_chp(qhp->rhp, qhp->attr.scq); + + if (qhp->ibqp.uobject) { + t4_set_wq_in_error(&qhp->wq); + t4_set_cq_in_error(&rchp->cq); + if (schp != rchp) + t4_set_cq_in_error(&schp->cq); + return; + } + __flush_qp(qhp, rchp, schp, flag); +} + +static int rdma_fini(struct c4iw_dev *rhp, struct c4iw_qp *qhp) +{ + struct fw_ri_wr *wqe; + int ret; + struct c4iw_wr_wait wr_wait; + struct sk_buff *skb; + + PDBG("%s qhp %p qid 0x%x tid %u\n", __func__, qhp, qhp->wq.sq.qid, + qhp->ep->hwtid); + + skb = alloc_skb(sizeof *wqe, GFP_KERNEL | __GFP_NOFAIL); + if (!skb) + return -ENOMEM; + set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx); + + wqe = (struct fw_ri_wr *)__skb_put(skb, sizeof(*wqe)); + memset(wqe, 0, sizeof *wqe); + wqe->op_compl = cpu_to_be32( + FW_WR_OP(FW_RI_INIT_WR) | + FW_WR_COMPL(1)); + wqe->flowid_len16 = cpu_to_be32( + FW_WR_FLOWID(qhp->ep->hwtid) | + FW_WR_LEN16(DIV_ROUND_UP(sizeof *wqe, 16))); + wqe->cookie = (u64)&wr_wait; + + wqe->u.fini.type = FW_RI_TYPE_FINI; + c4iw_init_wr_wait(&wr_wait); + ret = c4iw_ofld_send(&rhp->rdev, skb); + if (ret) + goto out; + + wait_event_timeout(wr_wait.wait, wr_wait.done, C4IW_WR_TO); + if (!wr_wait.done) { + printk(KERN_ERR MOD "Device %s not responding!\n", + pci_name(rhp->rdev.lldi.pdev)); + rhp->rdev.flags = T4_FATAL_ERROR; + ret = -EIO; + } else { + ret = wr_wait.ret; + if (ret) + printk(KERN_WARNING MOD + "%s: Abnormal close qpid %d ret %u\n", + pci_name(rhp->rdev.lldi.pdev), qhp->wq.sq.qid, + ret); + } +out: + PDBG("%s ret %d\n", __func__, ret); + return ret; +} + +static void build_rtr_msg(u8 p2p_type, struct fw_ri_init *init) +{ + memset(&init->u, 0, sizeof init->u); + switch (p2p_type) { + case FW_RI_INIT_P2PTYPE_RDMA_WRITE: + init->u.write.opcode = FW_RI_RDMA_WRITE_WR; + init->u.write.stag_sink = cpu_to_be32(1); + init->u.write.to_sink = cpu_to_be64(1); + init->u.write.u.immd_src[0].op = FW_RI_DATA_IMMD; + init->u.write.len16 = DIV_ROUND_UP(sizeof init->u.write + + sizeof(struct fw_ri_immd), + 16); + break; + case FW_RI_INIT_P2PTYPE_READ_REQ: + init->u.write.opcode = FW_RI_RDMA_READ_WR; + init->u.read.stag_src = cpu_to_be32(1); + init->u.read.to_src_lo = cpu_to_be32(1); + init->u.read.stag_sink = cpu_to_be32(1); + init->u.read.to_sink_lo = cpu_to_be32(1); + init->u.read.len16 = DIV_ROUND_UP(sizeof init->u.read, 16); + break; + } +} + +static int rdma_init(struct c4iw_dev *rhp, struct c4iw_qp *qhp) +{ + struct fw_ri_wr *wqe; + int ret; + struct c4iw_wr_wait wr_wait; + struct sk_buff *skb; + + PDBG("%s qhp %p qid 0x%x tid %u\n", __func__, qhp, qhp->wq.sq.qid, + qhp->ep->hwtid); + + skb = alloc_skb(sizeof *wqe, GFP_KERNEL | __GFP_NOFAIL); + if (!skb) + return -ENOMEM; + set_wr_txq(skb, CPL_PRIORITY_DATA, qhp->ep->txq_idx); + + wqe = (struct fw_ri_wr *)__skb_put(skb, sizeof(*wqe)); + memset(wqe, 0, sizeof *wqe); + wqe->op_compl = cpu_to_be32( + FW_WR_OP(FW_RI_INIT_WR) | + FW_WR_COMPL(1)); + wqe->flowid_len16 = cpu_to_be32( + FW_WR_FLOWID(qhp->ep->hwtid) | + FW_WR_LEN16(DIV_ROUND_UP(sizeof *wqe, 16))); + + wqe->cookie = (u64)&wr_wait; + + wqe->u.init.type = FW_RI_TYPE_INIT; + wqe->u.init.mpareqbit_p2ptype = + V_FW_RI_WR_MPAREQBIT(qhp->attr.mpa_attr.initiator) | + V_FW_RI_WR_P2PTYPE(qhp->attr.mpa_attr.p2p_type); + wqe->u.init.mpa_attrs = FW_RI_MPA_IETF_ENABLE; + if (qhp->attr.mpa_attr.recv_marker_enabled) + wqe->u.init.mpa_attrs |= FW_RI_MPA_RX_MARKER_ENABLE; + if (qhp->attr.mpa_attr.xmit_marker_enabled) + wqe->u.init.mpa_attrs |= FW_RI_MPA_TX_MARKER_ENABLE; + if (qhp->attr.mpa_attr.crc_enabled) + wqe->u.init.mpa_attrs |= FW_RI_MPA_CRC_ENABLE; + + wqe->u.init.qp_caps = FW_RI_QP_RDMA_READ_ENABLE | + FW_RI_QP_RDMA_WRITE_ENABLE | + FW_RI_QP_BIND_ENABLE; + if (!qhp->ibqp.uobject) + wqe->u.init.qp_caps |= FW_RI_QP_FAST_REGISTER_ENABLE | + FW_RI_QP_STAG0_ENABLE; + wqe->u.init.nrqe = cpu_to_be16(t4_rqes_posted(&qhp->wq)); + wqe->u.init.pdid = cpu_to_be32(qhp->attr.pd); + wqe->u.init.qpid = cpu_to_be32(qhp->wq.sq.qid); + wqe->u.init.sq_eqid = cpu_to_be32(qhp->wq.sq.qid); + wqe->u.init.rq_eqid = cpu_to_be32(qhp->wq.rq.qid); + wqe->u.init.scqid = cpu_to_be32(qhp->attr.scq); + wqe->u.init.rcqid = cpu_to_be32(qhp->attr.rcq); + wqe->u.init.ord_max = cpu_to_be32(qhp->attr.max_ord); + wqe->u.init.ird_max = cpu_to_be32(qhp->attr.max_ird); + wqe->u.init.iss = cpu_to_be32(qhp->ep->snd_seq); + wqe->u.init.irs = cpu_to_be32(qhp->ep->rcv_seq); + wqe->u.init.hwrqsize = cpu_to_be32(qhp->wq.rq.rqt_size); + wqe->u.init.hwrqaddr = cpu_to_be32(qhp->wq.rq.rqt_hwaddr - + rhp->rdev.lldi.vr->rq.start); + if (qhp->attr.mpa_attr.initiator) + build_rtr_msg(qhp->attr.mpa_attr.p2p_type, &wqe->u.init); + + c4iw_init_wr_wait(&wr_wait); + ret = c4iw_ofld_send(&rhp->rdev, skb); + if (ret) + goto out; + + wait_event_timeout(wr_wait.wait, wr_wait.done, C4IW_WR_TO); + if (!wr_wait.done) { + printk(KERN_ERR MOD "Device %s not responding!\n", + pci_name(rhp->rdev.lldi.pdev)); + rhp->rdev.flags = T4_FATAL_ERROR; + ret = -EIO; + } else + ret = wr_wait.ret; +out: + PDBG("%s ret %d\n", __func__, ret); + return ret; +} + +int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp, + enum c4iw_qp_attr_mask mask, + struct c4iw_qp_attributes *attrs, + int internal) +{ + int ret = 0; + struct c4iw_qp_attributes newattr = qhp->attr; + unsigned long flag; + int disconnect = 0; + int terminate = 0; + int abort = 0; + int free = 0; + struct c4iw_ep *ep = NULL; + + PDBG("%s qhp %p sqid 0x%x rqid 0x%x ep %p state %d -> %d\n", __func__, + qhp, qhp->wq.sq.qid, qhp->wq.rq.qid, qhp->ep, qhp->attr.state, + (mask & C4IW_QP_ATTR_NEXT_STATE) ? attrs->next_state : -1); + + spin_lock_irqsave(&qhp->lock, flag); + + /* Process attr changes if in IDLE */ + if (mask & C4IW_QP_ATTR_VALID_MODIFY) { + if (qhp->attr.state != C4IW_QP_STATE_IDLE) { + ret = -EIO; + goto out; + } + if (mask & C4IW_QP_ATTR_ENABLE_RDMA_READ) + newattr.enable_rdma_read = attrs->enable_rdma_read; + if (mask & C4IW_QP_ATTR_ENABLE_RDMA_WRITE) + newattr.enable_rdma_write = attrs->enable_rdma_write; + if (mask & C4IW_QP_ATTR_ENABLE_RDMA_BIND) + newattr.enable_bind = attrs->enable_bind; + if (mask & C4IW_QP_ATTR_MAX_ORD) { + if (attrs->max_ord > c4iw_max_read_depth) { + ret = -EINVAL; + goto out; + } + newattr.max_ord = attrs->max_ord; + } + if (mask & C4IW_QP_ATTR_MAX_IRD) { + if (attrs->max_ird > c4iw_max_read_depth) { + ret = -EINVAL; + goto out; + } + newattr.max_ird = attrs->max_ird; + } + qhp->attr = newattr; + } + + if (!(mask & C4IW_QP_ATTR_NEXT_STATE)) + goto out; + if (qhp->attr.state == attrs->next_state) + goto out; + + switch (qhp->attr.state) { + case C4IW_QP_STATE_IDLE: + switch (attrs->next_state) { + case C4IW_QP_STATE_RTS: + if (!(mask & C4IW_QP_ATTR_LLP_STREAM_HANDLE)) { + ret = -EINVAL; + goto out; + } + if (!(mask & C4IW_QP_ATTR_MPA_ATTR)) { + ret = -EINVAL; + goto out; + } + qhp->attr.mpa_attr = attrs->mpa_attr; + qhp->attr.llp_stream_handle = attrs->llp_stream_handle; + qhp->ep = qhp->attr.llp_stream_handle; + qhp->attr.state = C4IW_QP_STATE_RTS; + + /* + * Ref the endpoint here and deref when we + * disassociate the endpoint from the QP. This + * happens in CLOSING->IDLE transition or *->ERROR + * transition. + */ + c4iw_get_ep(&qhp->ep->com); + spin_unlock_irqrestore(&qhp->lock, flag); + ret = rdma_init(rhp, qhp); + spin_lock_irqsave(&qhp->lock, flag); + if (ret) + goto err; + break; + case C4IW_QP_STATE_ERROR: + qhp->attr.state = C4IW_QP_STATE_ERROR; + flush_qp(qhp, &flag); + break; + default: + ret = -EINVAL; + goto out; + } + break; + case C4IW_QP_STATE_RTS: + switch (attrs->next_state) { + case C4IW_QP_STATE_CLOSING: + BUG_ON(atomic_read(&qhp->ep->com.kref.refcount) < 2); + qhp->attr.state = C4IW_QP_STATE_CLOSING; + if (!internal) { + abort = 0; + disconnect = 1; + ep = qhp->ep; + c4iw_get_ep(&ep->com); + } + spin_unlock_irqrestore(&qhp->lock, flag); + ret = rdma_fini(rhp, qhp); + spin_lock_irqsave(&qhp->lock, flag); + if (ret) { + ep = qhp->ep; + c4iw_get_ep(&ep->com); + disconnect = abort = 1; + goto err; + } + break; + case C4IW_QP_STATE_TERMINATE: + qhp->attr.state = C4IW_QP_STATE_TERMINATE; + if (qhp->ibqp.uobject) + t4_set_wq_in_error(&qhp->wq); + ep = qhp->ep; + c4iw_get_ep(&ep->com); + terminate = 1; + disconnect = 1; + break; + case C4IW_QP_STATE_ERROR: + qhp->attr.state = C4IW_QP_STATE_ERROR; + if (!internal) { + abort = 1; + disconnect = 1; + ep = qhp->ep; + c4iw_get_ep(&ep->com); + } + goto err; + break; + default: + ret = -EINVAL; + goto out; + } + break; + case C4IW_QP_STATE_CLOSING: + if (!internal) { + ret = -EINVAL; + goto out; + } + switch (attrs->next_state) { + case C4IW_QP_STATE_IDLE: + flush_qp(qhp, &flag); + qhp->attr.state = C4IW_QP_STATE_IDLE; + qhp->attr.llp_stream_handle = NULL; + c4iw_put_ep(&qhp->ep->com); + qhp->ep = NULL; + wake_up(&qhp->wait); + break; + case C4IW_QP_STATE_ERROR: + goto err; + default: + ret = -EINVAL; + goto err; + } + break; + case C4IW_QP_STATE_ERROR: + if (attrs->next_state != C4IW_QP_STATE_IDLE) { + ret = -EINVAL; + goto out; + } + if (!t4_sq_empty(&qhp->wq) || !t4_rq_empty(&qhp->wq)) { + ret = -EINVAL; + goto out; + } + qhp->attr.state = C4IW_QP_STATE_IDLE; + break; + case C4IW_QP_STATE_TERMINATE: + if (!internal) { + ret = -EINVAL; + goto out; + } + goto err; + break; + default: + printk(KERN_ERR "%s in a bad state %d\n", + __func__, qhp->attr.state); + ret = -EINVAL; + goto err; + break; + } + goto out; +err: + PDBG("%s disassociating ep %p qpid 0x%x\n", __func__, qhp->ep, + qhp->wq.sq.qid); + + /* disassociate the LLP connection */ + qhp->attr.llp_stream_handle = NULL; + ep = qhp->ep; + qhp->ep = NULL; + qhp->attr.state = C4IW_QP_STATE_ERROR; + free = 1; + wake_up(&qhp->wait); + BUG_ON(!ep); + flush_qp(qhp, &flag); +out: + spin_unlock_irqrestore(&qhp->lock, flag); + + if (terminate) + post_terminate(qhp, NULL, internal ? GFP_ATOMIC : GFP_KERNEL); + + /* + * If disconnect is 1, then we need to initiate a disconnect + * on the EP. This can be a normal close (RTS->CLOSING) or + * an abnormal close (RTS/CLOSING->ERROR). + */ + if (disconnect) { + c4iw_ep_disconnect(ep, abort, internal ? GFP_ATOMIC : + GFP_KERNEL); + c4iw_put_ep(&ep->com); + } + + /* + * If free is 1, then we've disassociated the EP from the QP + * and we need to dereference the EP. + */ + if (free) + c4iw_put_ep(&ep->com); + + PDBG("%s exit state %d\n", __func__, qhp->attr.state); + return ret; +} + +int c4iw_destroy_qp(struct ib_qp *ib_qp) +{ + struct c4iw_dev *rhp; + struct c4iw_qp *qhp; + struct c4iw_qp_attributes attrs; + struct c4iw_ucontext *ucontext; + + qhp = to_c4iw_qp(ib_qp); + rhp = qhp->rhp; + + attrs.next_state = C4IW_QP_STATE_ERROR; + c4iw_modify_qp(rhp, qhp, C4IW_QP_ATTR_NEXT_STATE, &attrs, 0); + wait_event(qhp->wait, !qhp->ep); + + remove_handle(rhp, &rhp->qpidr, qhp->wq.sq.qid); + remove_handle(rhp, &rhp->qpidr, qhp->wq.rq.qid); + atomic_dec(&qhp->refcnt); + wait_event(qhp->wait, !atomic_read(&qhp->refcnt)); + + ucontext = ib_qp->uobject ? + to_c4iw_ucontext(ib_qp->uobject->context) : NULL; + destroy_qp(&rhp->rdev, &qhp->wq, + ucontext ? &ucontext->uctx : &rhp->rdev.uctx); + + PDBG("%s ib_qp %p qpid 0x%0x\n", __func__, ib_qp, qhp->wq.sq.qid); + kfree(qhp); + return 0; +} + +struct ib_qp *c4iw_create_qp(struct ib_pd *pd, struct ib_qp_init_attr *attrs, + struct ib_udata *udata) +{ + struct c4iw_dev *rhp; + struct c4iw_qp *qhp; + struct c4iw_pd *php; + struct c4iw_cq *schp; + struct c4iw_cq *rchp; + struct c4iw_create_qp_resp uresp; + int sqsize, rqsize; + struct c4iw_ucontext *ucontext; + int ret; + struct c4iw_mm_entry *mm1, *mm2, *mm3, *mm4; + + PDBG("%s ib_pd %p\n", __func__, pd); + + if (attrs->qp_type != IB_QPT_RC) + return ERR_PTR(-EINVAL); + + php = to_c4iw_pd(pd); + rhp = php->rhp; + schp = get_chp(rhp, ((struct c4iw_cq *)attrs->send_cq)->cq.cqid); + rchp = get_chp(rhp, ((struct c4iw_cq *)attrs->recv_cq)->cq.cqid); + if (!schp || !rchp) + return ERR_PTR(-EINVAL); + + if (attrs->cap.max_inline_data > T4_MAX_SEND_INLINE) + return ERR_PTR(-EINVAL); + + rqsize = roundup(attrs->cap.max_recv_wr + 1, 16); + if (rqsize > T4_MAX_RQ_SIZE) + return ERR_PTR(-E2BIG); + + sqsize = roundup(attrs->cap.max_send_wr + 1, 16); + if (sqsize > T4_MAX_SQ_SIZE) + return ERR_PTR(-E2BIG); + + ucontext = pd->uobject ? to_c4iw_ucontext(pd->uobject->context) : NULL; + + + qhp = kzalloc(sizeof(*qhp), GFP_KERNEL); + if (!qhp) + return ERR_PTR(-ENOMEM); + qhp->wq.sq.size = sqsize; + qhp->wq.sq.memsize = (sqsize + 1) * sizeof *qhp->wq.sq.queue; + qhp->wq.rq.size = rqsize; + qhp->wq.rq.memsize = (rqsize + 1) * sizeof *qhp->wq.rq.queue; + + if (ucontext) { + qhp->wq.sq.memsize = roundup(qhp->wq.sq.memsize, PAGE_SIZE); + qhp->wq.rq.memsize = roundup(qhp->wq.rq.memsize, PAGE_SIZE); + } + + PDBG("%s sqsize %u sqmemsize %zu rqsize %u rqmemsize %zu\n", + __func__, sqsize, qhp->wq.sq.memsize, rqsize, qhp->wq.rq.memsize); + + ret = create_qp(&rhp->rdev, &qhp->wq, &schp->cq, &rchp->cq, + ucontext ? &ucontext->uctx : &rhp->rdev.uctx); + if (ret) + goto err1; + + attrs->cap.max_recv_wr = rqsize - 1; + attrs->cap.max_send_wr = sqsize - 1; + attrs->cap.max_inline_data = T4_MAX_SEND_INLINE; + + qhp->rhp = rhp; + qhp->attr.pd = php->pdid; + qhp->attr.scq = ((struct c4iw_cq *) attrs->send_cq)->cq.cqid; + qhp->attr.rcq = ((struct c4iw_cq *) attrs->recv_cq)->cq.cqid; + qhp->attr.sq_num_entries = attrs->cap.max_send_wr; + qhp->attr.rq_num_entries = attrs->cap.max_recv_wr; + qhp->attr.sq_max_sges = attrs->cap.max_send_sge; + qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge; + qhp->attr.rq_max_sges = attrs->cap.max_recv_sge; + qhp->attr.state = C4IW_QP_STATE_IDLE; + qhp->attr.next_state = C4IW_QP_STATE_IDLE; + qhp->attr.enable_rdma_read = 1; + qhp->attr.enable_rdma_write = 1; + qhp->attr.enable_bind = 1; + qhp->attr.max_ord = 1; + qhp->attr.max_ird = 1; + spin_lock_init(&qhp->lock); + init_waitqueue_head(&qhp->wait); + atomic_set(&qhp->refcnt, 1); + + ret = insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.sq.qid); + if (ret) + goto err2; + + ret = insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.rq.qid); + if (ret) + goto err3; + + if (udata) { + mm1 = kmalloc(sizeof *mm1, GFP_KERNEL); + if (!mm1) { + ret = -ENOMEM; + goto err4; + } + mm2 = kmalloc(sizeof *mm2, GFP_KERNEL); + if (!mm2) { + ret = -ENOMEM; + goto err5; + } + mm3 = kmalloc(sizeof *mm3, GFP_KERNEL); + if (!mm3) { + ret = -ENOMEM; + goto err6; + } + mm4 = kmalloc(sizeof *mm4, GFP_KERNEL); + if (!mm4) { + ret = -ENOMEM; + goto err7; + } + + uresp.qid_mask = rhp->rdev.qpmask; + uresp.sqid = qhp->wq.sq.qid; + uresp.sq_size = qhp->wq.sq.size; + uresp.sq_memsize = qhp->wq.sq.memsize; + uresp.rqid = qhp->wq.rq.qid; + uresp.rq_size = qhp->wq.rq.size; + uresp.rq_memsize = qhp->wq.rq.memsize; + spin_lock(&ucontext->mmap_lock); + uresp.sq_key = ucontext->key; + ucontext->key += PAGE_SIZE; + uresp.rq_key = ucontext->key; + ucontext->key += PAGE_SIZE; + uresp.sq_db_gts_key = ucontext->key; + ucontext->key += PAGE_SIZE; + uresp.rq_db_gts_key = ucontext->key; + ucontext->key += PAGE_SIZE; + spin_unlock(&ucontext->mmap_lock); + ret = ib_copy_to_udata(udata, &uresp, sizeof uresp); + if (ret) + goto err8; + mm1->key = uresp.sq_key; + mm1->addr = virt_to_phys(qhp->wq.sq.queue); + mm1->len = PAGE_ALIGN(qhp->wq.sq.memsize); + insert_mmap(ucontext, mm1); + mm2->key = uresp.rq_key; + mm2->addr = virt_to_phys(qhp->wq.rq.queue); + mm2->len = PAGE_ALIGN(qhp->wq.rq.memsize); + insert_mmap(ucontext, mm2); + mm3->key = uresp.sq_db_gts_key; + mm3->addr = qhp->wq.sq.udb; + mm3->len = PAGE_SIZE; + insert_mmap(ucontext, mm3); + mm4->key = uresp.rq_db_gts_key; + mm4->addr = qhp->wq.rq.udb; + mm4->len = PAGE_SIZE; + insert_mmap(ucontext, mm4); + } + qhp->ibqp.qp_num = qhp->wq.sq.qid; + init_timer(&(qhp->timer)); + PDBG("%s qhp %p sq_num_entries %d, rq_num_entries %d qpid 0x%0x\n", + __func__, qhp, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries, + qhp->wq.sq.qid); + return &qhp->ibqp; +err8: + kfree(mm4); +err7: + kfree(mm3); +err6: + kfree(mm2); +err5: + kfree(mm1); +err4: + remove_handle(rhp, &rhp->qpidr, qhp->wq.rq.qid); +err3: + remove_handle(rhp, &rhp->qpidr, qhp->wq.sq.qid); +err2: + destroy_qp(&rhp->rdev, &qhp->wq, + ucontext ? &ucontext->uctx : &rhp->rdev.uctx); +err1: + kfree(qhp); + return ERR_PTR(ret); +} + +int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, + int attr_mask, struct ib_udata *udata) +{ + struct c4iw_dev *rhp; + struct c4iw_qp *qhp; + enum c4iw_qp_attr_mask mask = 0; + struct c4iw_qp_attributes attrs; + + PDBG("%s ib_qp %p\n", __func__, ibqp); + + /* iwarp does not support the RTR state */ + if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR)) + attr_mask &= ~IB_QP_STATE; + + /* Make sure we still have something left to do */ + if (!attr_mask) + return 0; + + memset(&attrs, 0, sizeof attrs); + qhp = to_c4iw_qp(ibqp); + rhp = qhp->rhp; + + attrs.next_state = c4iw_convert_state(attr->qp_state); + attrs.enable_rdma_read = (attr->qp_access_flags & + IB_ACCESS_REMOTE_READ) ? 1 : 0; + attrs.enable_rdma_write = (attr->qp_access_flags & + IB_ACCESS_REMOTE_WRITE) ? 1 : 0; + attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0; + + + mask |= (attr_mask & IB_QP_STATE) ? C4IW_QP_ATTR_NEXT_STATE : 0; + mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ? + (C4IW_QP_ATTR_ENABLE_RDMA_READ | + C4IW_QP_ATTR_ENABLE_RDMA_WRITE | + C4IW_QP_ATTR_ENABLE_RDMA_BIND) : 0; + + return c4iw_modify_qp(rhp, qhp, mask, &attrs, 0); +} + +struct ib_qp *c4iw_get_qp(struct ib_device *dev, int qpn) +{ + PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn); + return (struct ib_qp *)get_qhp(to_c4iw_dev(dev), qpn); +} diff --git a/drivers/infiniband/hw/cxgb4/resource.c b/drivers/infiniband/hw/cxgb4/resource.c new file mode 100644 index 000000000000..fb195d1d9015 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/resource.c @@ -0,0 +1,417 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +/* Crude resource management */ +#include <linux/kernel.h> +#include <linux/random.h> +#include <linux/slab.h> +#include <linux/kfifo.h> +#include <linux/spinlock.h> +#include <linux/errno.h> +#include <linux/genalloc.h> +#include "iw_cxgb4.h" + +#define RANDOM_SIZE 16 + +static int __c4iw_init_resource_fifo(struct kfifo *fifo, + spinlock_t *fifo_lock, + u32 nr, u32 skip_low, + u32 skip_high, + int random) +{ + u32 i, j, entry = 0, idx; + u32 random_bytes; + u32 rarray[16]; + spin_lock_init(fifo_lock); + + if (kfifo_alloc(fifo, nr * sizeof(u32), GFP_KERNEL)) + return -ENOMEM; + + for (i = 0; i < skip_low + skip_high; i++) + kfifo_in(fifo, (unsigned char *) &entry, sizeof(u32)); + if (random) { + j = 0; + random_bytes = random32(); + for (i = 0; i < RANDOM_SIZE; i++) + rarray[i] = i + skip_low; + for (i = skip_low + RANDOM_SIZE; i < nr - skip_high; i++) { + if (j >= RANDOM_SIZE) { + j = 0; + random_bytes = random32(); + } + idx = (random_bytes >> (j * 2)) & 0xF; + kfifo_in(fifo, + (unsigned char *) &rarray[idx], + sizeof(u32)); + rarray[idx] = i; + j++; + } + for (i = 0; i < RANDOM_SIZE; i++) + kfifo_in(fifo, + (unsigned char *) &rarray[i], + sizeof(u32)); + } else + for (i = skip_low; i < nr - skip_high; i++) + kfifo_in(fifo, (unsigned char *) &i, sizeof(u32)); + + for (i = 0; i < skip_low + skip_high; i++) + if (kfifo_out_locked(fifo, (unsigned char *) &entry, + sizeof(u32), fifo_lock)) + break; + return 0; +} + +static int c4iw_init_resource_fifo(struct kfifo *fifo, spinlock_t * fifo_lock, + u32 nr, u32 skip_low, u32 skip_high) +{ + return __c4iw_init_resource_fifo(fifo, fifo_lock, nr, skip_low, + skip_high, 0); +} + +static int c4iw_init_resource_fifo_random(struct kfifo *fifo, + spinlock_t *fifo_lock, + u32 nr, u32 skip_low, u32 skip_high) +{ + return __c4iw_init_resource_fifo(fifo, fifo_lock, nr, skip_low, + skip_high, 1); +} + +static int c4iw_init_qid_fifo(struct c4iw_rdev *rdev) +{ + u32 i; + + spin_lock_init(&rdev->resource.qid_fifo_lock); + + if (kfifo_alloc(&rdev->resource.qid_fifo, T4_MAX_QIDS * sizeof(u32), + GFP_KERNEL)) + return -ENOMEM; + + for (i = T4_QID_BASE; i < T4_QID_BASE + T4_MAX_QIDS; i++) + if (!(i & rdev->qpmask)) + kfifo_in(&rdev->resource.qid_fifo, + (unsigned char *) &i, sizeof(u32)); + return 0; +} + +/* nr_* must be power of 2 */ +int c4iw_init_resource(struct c4iw_rdev *rdev, u32 nr_tpt, u32 nr_pdid) +{ + int err = 0; + err = c4iw_init_resource_fifo_random(&rdev->resource.tpt_fifo, + &rdev->resource.tpt_fifo_lock, + nr_tpt, 1, 0); + if (err) + goto tpt_err; + err = c4iw_init_qid_fifo(rdev); + if (err) + goto qid_err; + err = c4iw_init_resource_fifo(&rdev->resource.pdid_fifo, + &rdev->resource.pdid_fifo_lock, + nr_pdid, 1, 0); + if (err) + goto pdid_err; + return 0; +pdid_err: + kfifo_free(&rdev->resource.qid_fifo); +qid_err: + kfifo_free(&rdev->resource.tpt_fifo); +tpt_err: + return -ENOMEM; +} + +/* + * returns 0 if no resource available + */ +u32 c4iw_get_resource(struct kfifo *fifo, spinlock_t *lock) +{ + u32 entry; + if (kfifo_out_locked(fifo, (unsigned char *) &entry, sizeof(u32), lock)) + return entry; + else + return 0; +} + +void c4iw_put_resource(struct kfifo *fifo, u32 entry, spinlock_t *lock) +{ + PDBG("%s entry 0x%x\n", __func__, entry); + kfifo_in_locked(fifo, (unsigned char *) &entry, sizeof(u32), lock); +} + +u32 c4iw_get_cqid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx) +{ + struct c4iw_qid_list *entry; + u32 qid; + int i; + + mutex_lock(&uctx->lock); + if (!list_empty(&uctx->cqids)) { + entry = list_entry(uctx->cqids.next, struct c4iw_qid_list, + entry); + list_del(&entry->entry); + qid = entry->qid; + kfree(entry); + } else { + qid = c4iw_get_resource(&rdev->resource.qid_fifo, + &rdev->resource.qid_fifo_lock); + if (!qid) + goto out; + for (i = qid+1; i & rdev->qpmask; i++) { + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + goto out; + entry->qid = i; + list_add_tail(&entry->entry, &uctx->cqids); + } + + /* + * now put the same ids on the qp list since they all + * map to the same db/gts page. + */ + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + goto out; + entry->qid = qid; + list_add_tail(&entry->entry, &uctx->qpids); + for (i = qid+1; i & rdev->qpmask; i++) { + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + goto out; + entry->qid = i; + list_add_tail(&entry->entry, &uctx->qpids); + } + } +out: + mutex_unlock(&uctx->lock); + PDBG("%s qid 0x%x\n", __func__, qid); + return qid; +} + +void c4iw_put_cqid(struct c4iw_rdev *rdev, u32 qid, + struct c4iw_dev_ucontext *uctx) +{ + struct c4iw_qid_list *entry; + + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + return; + PDBG("%s qid 0x%x\n", __func__, qid); + entry->qid = qid; + mutex_lock(&uctx->lock); + list_add_tail(&entry->entry, &uctx->cqids); + mutex_unlock(&uctx->lock); +} + +u32 c4iw_get_qpid(struct c4iw_rdev *rdev, struct c4iw_dev_ucontext *uctx) +{ + struct c4iw_qid_list *entry; + u32 qid; + int i; + + mutex_lock(&uctx->lock); + if (!list_empty(&uctx->qpids)) { + entry = list_entry(uctx->qpids.next, struct c4iw_qid_list, + entry); + list_del(&entry->entry); + qid = entry->qid; + kfree(entry); + } else { + qid = c4iw_get_resource(&rdev->resource.qid_fifo, + &rdev->resource.qid_fifo_lock); + if (!qid) + goto out; + for (i = qid+1; i & rdev->qpmask; i++) { + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + goto out; + entry->qid = i; + list_add_tail(&entry->entry, &uctx->qpids); + } + + /* + * now put the same ids on the cq list since they all + * map to the same db/gts page. + */ + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + goto out; + entry->qid = qid; + list_add_tail(&entry->entry, &uctx->cqids); + for (i = qid; i & rdev->qpmask; i++) { + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + goto out; + entry->qid = i; + list_add_tail(&entry->entry, &uctx->cqids); + } + } +out: + mutex_unlock(&uctx->lock); + PDBG("%s qid 0x%x\n", __func__, qid); + return qid; +} + +void c4iw_put_qpid(struct c4iw_rdev *rdev, u32 qid, + struct c4iw_dev_ucontext *uctx) +{ + struct c4iw_qid_list *entry; + + entry = kmalloc(sizeof *entry, GFP_KERNEL); + if (!entry) + return; + PDBG("%s qid 0x%x\n", __func__, qid); + entry->qid = qid; + mutex_lock(&uctx->lock); + list_add_tail(&entry->entry, &uctx->qpids); + mutex_unlock(&uctx->lock); +} + +void c4iw_destroy_resource(struct c4iw_resource *rscp) +{ + kfifo_free(&rscp->tpt_fifo); + kfifo_free(&rscp->qid_fifo); + kfifo_free(&rscp->pdid_fifo); +} + +/* + * PBL Memory Manager. Uses Linux generic allocator. + */ + +#define MIN_PBL_SHIFT 8 /* 256B == min PBL size (32 entries) */ + +u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size) +{ + unsigned long addr = gen_pool_alloc(rdev->pbl_pool, size); + PDBG("%s addr 0x%x size %d\n", __func__, (u32)addr, size); + return (u32)addr; +} + +void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size) +{ + PDBG("%s addr 0x%x size %d\n", __func__, addr, size); + gen_pool_free(rdev->pbl_pool, (unsigned long)addr, size); +} + +int c4iw_pblpool_create(struct c4iw_rdev *rdev) +{ + unsigned pbl_start, pbl_chunk, pbl_top; + + rdev->pbl_pool = gen_pool_create(MIN_PBL_SHIFT, -1); + if (!rdev->pbl_pool) + return -ENOMEM; + + pbl_start = rdev->lldi.vr->pbl.start; + pbl_chunk = rdev->lldi.vr->pbl.size; + pbl_top = pbl_start + pbl_chunk; + + while (pbl_start < pbl_top) { + pbl_chunk = min(pbl_top - pbl_start + 1, pbl_chunk); + if (gen_pool_add(rdev->pbl_pool, pbl_start, pbl_chunk, -1)) { + PDBG("%s failed to add PBL chunk (%x/%x)\n", + __func__, pbl_start, pbl_chunk); + if (pbl_chunk <= 1024 << MIN_PBL_SHIFT) { + printk(KERN_WARNING MOD + "Failed to add all PBL chunks (%x/%x)\n", + pbl_start, + pbl_top - pbl_start); + return 0; + } + pbl_chunk >>= 1; + } else { + PDBG("%s added PBL chunk (%x/%x)\n", + __func__, pbl_start, pbl_chunk); + pbl_start += pbl_chunk; + } + } + + return 0; +} + +void c4iw_pblpool_destroy(struct c4iw_rdev *rdev) +{ + gen_pool_destroy(rdev->pbl_pool); +} + +/* + * RQT Memory Manager. Uses Linux generic allocator. + */ + +#define MIN_RQT_SHIFT 10 /* 1KB == min RQT size (16 entries) */ + +u32 c4iw_rqtpool_alloc(struct c4iw_rdev *rdev, int size) +{ + unsigned long addr = gen_pool_alloc(rdev->rqt_pool, size << 6); + PDBG("%s addr 0x%x size %d\n", __func__, (u32)addr, size << 6); + return (u32)addr; +} + +void c4iw_rqtpool_free(struct c4iw_rdev *rdev, u32 addr, int size) +{ + PDBG("%s addr 0x%x size %d\n", __func__, addr, size << 6); + gen_pool_free(rdev->rqt_pool, (unsigned long)addr, size << 6); +} + +int c4iw_rqtpool_create(struct c4iw_rdev *rdev) +{ + unsigned rqt_start, rqt_chunk, rqt_top; + + rdev->rqt_pool = gen_pool_create(MIN_RQT_SHIFT, -1); + if (!rdev->rqt_pool) + return -ENOMEM; + + rqt_start = rdev->lldi.vr->rq.start; + rqt_chunk = rdev->lldi.vr->rq.size; + rqt_top = rqt_start + rqt_chunk; + + while (rqt_start < rqt_top) { + rqt_chunk = min(rqt_top - rqt_start + 1, rqt_chunk); + if (gen_pool_add(rdev->rqt_pool, rqt_start, rqt_chunk, -1)) { + PDBG("%s failed to add RQT chunk (%x/%x)\n", + __func__, rqt_start, rqt_chunk); + if (rqt_chunk <= 1024 << MIN_RQT_SHIFT) { + printk(KERN_WARNING MOD + "Failed to add all RQT chunks (%x/%x)\n", + rqt_start, rqt_top - rqt_start); + return 0; + } + rqt_chunk >>= 1; + } else { + PDBG("%s added RQT chunk (%x/%x)\n", + __func__, rqt_start, rqt_chunk); + rqt_start += rqt_chunk; + } + } + return 0; +} + +void c4iw_rqtpool_destroy(struct c4iw_rdev *rdev) +{ + gen_pool_destroy(rdev->rqt_pool); +} diff --git a/drivers/infiniband/hw/cxgb4/t4.h b/drivers/infiniband/hw/cxgb4/t4.h new file mode 100644 index 000000000000..d0e8af352408 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/t4.h @@ -0,0 +1,550 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef __T4_H__ +#define __T4_H__ + +#include "t4_hw.h" +#include "t4_regs.h" +#include "t4_msg.h" +#include "t4fw_ri_api.h" + +#define T4_QID_BASE 1024 +#define T4_MAX_QIDS 256 +#define T4_MAX_NUM_QP (1<<16) +#define T4_MAX_NUM_CQ (1<<15) +#define T4_MAX_NUM_PD (1<<15) +#define T4_MAX_PBL_SIZE 256 +#define T4_MAX_RQ_SIZE 1024 +#define T4_MAX_SQ_SIZE 1024 +#define T4_MAX_QP_DEPTH (T4_MAX_RQ_SIZE-1) +#define T4_MAX_CQ_DEPTH 8192 +#define T4_MAX_NUM_STAG (1<<15) +#define T4_MAX_MR_SIZE (~0ULL - 1) +#define T4_PAGESIZE_MASK 0xffff000 /* 4KB-128MB */ +#define T4_STAG_UNSET 0xffffffff +#define T4_FW_MAJ 0 +#define T4_EQ_STATUS_ENTRIES (L1_CACHE_BYTES > 64 ? 2 : 1) + +struct t4_status_page { + __be32 rsvd1; /* flit 0 - hw owns */ + __be16 rsvd2; + __be16 qid; + __be16 cidx; + __be16 pidx; + u8 qp_err; /* flit 1 - sw owns */ + u8 db_off; +}; + +#define T4_EQ_SIZE 64 + +#define T4_SQ_NUM_SLOTS 4 +#define T4_SQ_NUM_BYTES (T4_EQ_SIZE * T4_SQ_NUM_SLOTS) +#define T4_MAX_SEND_SGE ((T4_SQ_NUM_BYTES - sizeof(struct fw_ri_send_wr) - \ + sizeof(struct fw_ri_isgl)) / sizeof(struct fw_ri_sge)) +#define T4_MAX_SEND_INLINE ((T4_SQ_NUM_BYTES - sizeof(struct fw_ri_send_wr) - \ + sizeof(struct fw_ri_immd))) +#define T4_MAX_WRITE_INLINE ((T4_SQ_NUM_BYTES - \ + sizeof(struct fw_ri_rdma_write_wr) - \ + sizeof(struct fw_ri_immd))) +#define T4_MAX_WRITE_SGE ((T4_SQ_NUM_BYTES - \ + sizeof(struct fw_ri_rdma_write_wr) - \ + sizeof(struct fw_ri_isgl)) / sizeof(struct fw_ri_sge)) +#define T4_MAX_FR_IMMD ((T4_SQ_NUM_BYTES - sizeof(struct fw_ri_fr_nsmr_wr) - \ + sizeof(struct fw_ri_immd))) +#define T4_MAX_FR_DEPTH 255 + +#define T4_RQ_NUM_SLOTS 2 +#define T4_RQ_NUM_BYTES (T4_EQ_SIZE * T4_RQ_NUM_SLOTS) +#define T4_MAX_RECV_SGE ((T4_RQ_NUM_BYTES - sizeof(struct fw_ri_recv_wr) - \ + sizeof(struct fw_ri_isgl)) / sizeof(struct fw_ri_sge)) + +union t4_wr { + struct fw_ri_res_wr res; + struct fw_ri_wr ri; + struct fw_ri_rdma_write_wr write; + struct fw_ri_send_wr send; + struct fw_ri_rdma_read_wr read; + struct fw_ri_bind_mw_wr bind; + struct fw_ri_fr_nsmr_wr fr; + struct fw_ri_inv_lstag_wr inv; + struct t4_status_page status; + __be64 flits[T4_EQ_SIZE / sizeof(__be64) * T4_SQ_NUM_SLOTS]; +}; + +union t4_recv_wr { + struct fw_ri_recv_wr recv; + struct t4_status_page status; + __be64 flits[T4_EQ_SIZE / sizeof(__be64) * T4_RQ_NUM_SLOTS]; +}; + +static inline void init_wr_hdr(union t4_wr *wqe, u16 wrid, + enum fw_wr_opcodes opcode, u8 flags, u8 len16) +{ + int slots_used; + + wqe->send.opcode = (u8)opcode; + wqe->send.flags = flags; + wqe->send.wrid = wrid; + wqe->send.r1[0] = 0; + wqe->send.r1[1] = 0; + wqe->send.r1[2] = 0; + wqe->send.len16 = len16; + + slots_used = DIV_ROUND_UP(len16*16, T4_EQ_SIZE); + while (slots_used < T4_SQ_NUM_SLOTS) { + wqe->flits[slots_used * T4_EQ_SIZE / sizeof(__be64)] = 0; + slots_used++; + } +} + +/* CQE/AE status codes */ +#define T4_ERR_SUCCESS 0x0 +#define T4_ERR_STAG 0x1 /* STAG invalid: either the */ + /* STAG is offlimt, being 0, */ + /* or STAG_key mismatch */ +#define T4_ERR_PDID 0x2 /* PDID mismatch */ +#define T4_ERR_QPID 0x3 /* QPID mismatch */ +#define T4_ERR_ACCESS 0x4 /* Invalid access right */ +#define T4_ERR_WRAP 0x5 /* Wrap error */ +#define T4_ERR_BOUND 0x6 /* base and bounds voilation */ +#define T4_ERR_INVALIDATE_SHARED_MR 0x7 /* attempt to invalidate a */ + /* shared memory region */ +#define T4_ERR_INVALIDATE_MR_WITH_MW_BOUND 0x8 /* attempt to invalidate a */ + /* shared memory region */ +#define T4_ERR_ECC 0x9 /* ECC error detected */ +#define T4_ERR_ECC_PSTAG 0xA /* ECC error detected when */ + /* reading PSTAG for a MW */ + /* Invalidate */ +#define T4_ERR_PBL_ADDR_BOUND 0xB /* pbl addr out of bounds: */ + /* software error */ +#define T4_ERR_SWFLUSH 0xC /* SW FLUSHED */ +#define T4_ERR_CRC 0x10 /* CRC error */ +#define T4_ERR_MARKER 0x11 /* Marker error */ +#define T4_ERR_PDU_LEN_ERR 0x12 /* invalid PDU length */ +#define T4_ERR_OUT_OF_RQE 0x13 /* out of RQE */ +#define T4_ERR_DDP_VERSION 0x14 /* wrong DDP version */ +#define T4_ERR_RDMA_VERSION 0x15 /* wrong RDMA version */ +#define T4_ERR_OPCODE 0x16 /* invalid rdma opcode */ +#define T4_ERR_DDP_QUEUE_NUM 0x17 /* invalid ddp queue number */ +#define T4_ERR_MSN 0x18 /* MSN error */ +#define T4_ERR_TBIT 0x19 /* tag bit not set correctly */ +#define T4_ERR_MO 0x1A /* MO not 0 for TERMINATE */ + /* or READ_REQ */ +#define T4_ERR_MSN_GAP 0x1B +#define T4_ERR_MSN_RANGE 0x1C +#define T4_ERR_IRD_OVERFLOW 0x1D +#define T4_ERR_RQE_ADDR_BOUND 0x1E /* RQE addr out of bounds: */ + /* software error */ +#define T4_ERR_INTERNAL_ERR 0x1F /* internal error (opcode */ + /* mismatch) */ +/* + * CQE defs + */ +struct t4_cqe { + __be32 header; + __be32 len; + union { + struct { + __be32 stag; + __be32 msn; + } rcqe; + struct { + u32 nada1; + u16 nada2; + u16 cidx; + } scqe; + struct { + __be32 wrid_hi; + __be32 wrid_low; + } gen; + } u; + __be64 reserved; + __be64 bits_type_ts; +}; + +/* macros for flit 0 of the cqe */ + +#define S_CQE_QPID 12 +#define M_CQE_QPID 0xFFFFF +#define G_CQE_QPID(x) ((((x) >> S_CQE_QPID)) & M_CQE_QPID) +#define V_CQE_QPID(x) ((x)<<S_CQE_QPID) + +#define S_CQE_SWCQE 11 +#define M_CQE_SWCQE 0x1 +#define G_CQE_SWCQE(x) ((((x) >> S_CQE_SWCQE)) & M_CQE_SWCQE) +#define V_CQE_SWCQE(x) ((x)<<S_CQE_SWCQE) + +#define S_CQE_STATUS 5 +#define M_CQE_STATUS 0x1F +#define G_CQE_STATUS(x) ((((x) >> S_CQE_STATUS)) & M_CQE_STATUS) +#define V_CQE_STATUS(x) ((x)<<S_CQE_STATUS) + +#define S_CQE_TYPE 4 +#define M_CQE_TYPE 0x1 +#define G_CQE_TYPE(x) ((((x) >> S_CQE_TYPE)) & M_CQE_TYPE) +#define V_CQE_TYPE(x) ((x)<<S_CQE_TYPE) + +#define S_CQE_OPCODE 0 +#define M_CQE_OPCODE 0xF +#define G_CQE_OPCODE(x) ((((x) >> S_CQE_OPCODE)) & M_CQE_OPCODE) +#define V_CQE_OPCODE(x) ((x)<<S_CQE_OPCODE) + +#define SW_CQE(x) (G_CQE_SWCQE(be32_to_cpu((x)->header))) +#define CQE_QPID(x) (G_CQE_QPID(be32_to_cpu((x)->header))) +#define CQE_TYPE(x) (G_CQE_TYPE(be32_to_cpu((x)->header))) +#define SQ_TYPE(x) (CQE_TYPE((x))) +#define RQ_TYPE(x) (!CQE_TYPE((x))) +#define CQE_STATUS(x) (G_CQE_STATUS(be32_to_cpu((x)->header))) +#define CQE_OPCODE(x) (G_CQE_OPCODE(be32_to_cpu((x)->header))) + +#define CQE_SEND_OPCODE(x)( \ + (G_CQE_OPCODE(be32_to_cpu((x)->header)) == FW_RI_SEND) || \ + (G_CQE_OPCODE(be32_to_cpu((x)->header)) == FW_RI_SEND_WITH_SE) || \ + (G_CQE_OPCODE(be32_to_cpu((x)->header)) == FW_RI_SEND_WITH_INV) || \ + (G_CQE_OPCODE(be32_to_cpu((x)->header)) == FW_RI_SEND_WITH_SE_INV)) + +#define CQE_LEN(x) (be32_to_cpu((x)->len)) + +/* used for RQ completion processing */ +#define CQE_WRID_STAG(x) (be32_to_cpu((x)->u.rcqe.stag)) +#define CQE_WRID_MSN(x) (be32_to_cpu((x)->u.rcqe.msn)) + +/* used for SQ completion processing */ +#define CQE_WRID_SQ_IDX(x) ((x)->u.scqe.cidx) + +/* generic accessor macros */ +#define CQE_WRID_HI(x) ((x)->u.gen.wrid_hi) +#define CQE_WRID_LOW(x) ((x)->u.gen.wrid_low) + +/* macros for flit 3 of the cqe */ +#define S_CQE_GENBIT 63 +#define M_CQE_GENBIT 0x1 +#define G_CQE_GENBIT(x) (((x) >> S_CQE_GENBIT) & M_CQE_GENBIT) +#define V_CQE_GENBIT(x) ((x)<<S_CQE_GENBIT) + +#define S_CQE_OVFBIT 62 +#define M_CQE_OVFBIT 0x1 +#define G_CQE_OVFBIT(x) ((((x) >> S_CQE_OVFBIT)) & M_CQE_OVFBIT) + +#define S_CQE_IQTYPE 60 +#define M_CQE_IQTYPE 0x3 +#define G_CQE_IQTYPE(x) ((((x) >> S_CQE_IQTYPE)) & M_CQE_IQTYPE) + +#define M_CQE_TS 0x0fffffffffffffffULL +#define G_CQE_TS(x) ((x) & M_CQE_TS) + +#define CQE_OVFBIT(x) ((unsigned)G_CQE_OVFBIT(be64_to_cpu((x)->bits_type_ts))) +#define CQE_GENBIT(x) ((unsigned)G_CQE_GENBIT(be64_to_cpu((x)->bits_type_ts))) +#define CQE_TS(x) (G_CQE_TS(be64_to_cpu((x)->bits_type_ts))) + +struct t4_swsqe { + u64 wr_id; + struct t4_cqe cqe; + int read_len; + int opcode; + int complete; + int signaled; + u16 idx; +}; + +struct t4_sq { + union t4_wr *queue; + dma_addr_t dma_addr; + DECLARE_PCI_UNMAP_ADDR(mapping); + struct t4_swsqe *sw_sq; + struct t4_swsqe *oldest_read; + u64 udb; + size_t memsize; + u32 qid; + u16 in_use; + u16 size; + u16 cidx; + u16 pidx; +}; + +struct t4_swrqe { + u64 wr_id; +}; + +struct t4_rq { + union t4_recv_wr *queue; + dma_addr_t dma_addr; + DECLARE_PCI_UNMAP_ADDR(mapping); + struct t4_swrqe *sw_rq; + u64 udb; + size_t memsize; + u32 qid; + u32 msn; + u32 rqt_hwaddr; + u16 rqt_size; + u16 in_use; + u16 size; + u16 cidx; + u16 pidx; +}; + +struct t4_wq { + struct t4_sq sq; + struct t4_rq rq; + void __iomem *db; + void __iomem *gts; + struct c4iw_rdev *rdev; +}; + +static inline int t4_rqes_posted(struct t4_wq *wq) +{ + return wq->rq.in_use; +} + +static inline int t4_rq_empty(struct t4_wq *wq) +{ + return wq->rq.in_use == 0; +} + +static inline int t4_rq_full(struct t4_wq *wq) +{ + return wq->rq.in_use == (wq->rq.size - 1); +} + +static inline u32 t4_rq_avail(struct t4_wq *wq) +{ + return wq->rq.size - 1 - wq->rq.in_use; +} + +static inline void t4_rq_produce(struct t4_wq *wq) +{ + wq->rq.in_use++; + if (++wq->rq.pidx == wq->rq.size) + wq->rq.pidx = 0; +} + +static inline void t4_rq_consume(struct t4_wq *wq) +{ + wq->rq.in_use--; + wq->rq.msn++; + if (++wq->rq.cidx == wq->rq.size) + wq->rq.cidx = 0; +} + +static inline int t4_sq_empty(struct t4_wq *wq) +{ + return wq->sq.in_use == 0; +} + +static inline int t4_sq_full(struct t4_wq *wq) +{ + return wq->sq.in_use == (wq->sq.size - 1); +} + +static inline u32 t4_sq_avail(struct t4_wq *wq) +{ + return wq->sq.size - 1 - wq->sq.in_use; +} + +static inline void t4_sq_produce(struct t4_wq *wq) +{ + wq->sq.in_use++; + if (++wq->sq.pidx == wq->sq.size) + wq->sq.pidx = 0; +} + +static inline void t4_sq_consume(struct t4_wq *wq) +{ + wq->sq.in_use--; + if (++wq->sq.cidx == wq->sq.size) + wq->sq.cidx = 0; +} + +static inline void t4_ring_sq_db(struct t4_wq *wq, u16 inc) +{ + inc *= T4_SQ_NUM_SLOTS; + wmb(); + writel(QID(wq->sq.qid) | PIDX(inc), wq->db); +} + +static inline void t4_ring_rq_db(struct t4_wq *wq, u16 inc) +{ + inc *= T4_RQ_NUM_SLOTS; + wmb(); + writel(QID(wq->rq.qid) | PIDX(inc), wq->db); +} + +static inline int t4_wq_in_error(struct t4_wq *wq) +{ + return wq->sq.queue[wq->sq.size].status.qp_err; +} + +static inline void t4_set_wq_in_error(struct t4_wq *wq) +{ + wq->sq.queue[wq->sq.size].status.qp_err = 1; + wq->rq.queue[wq->rq.size].status.qp_err = 1; +} + +static inline void t4_disable_wq_db(struct t4_wq *wq) +{ + wq->sq.queue[wq->sq.size].status.db_off = 1; + wq->rq.queue[wq->rq.size].status.db_off = 1; +} + +static inline void t4_enable_wq_db(struct t4_wq *wq) +{ + wq->sq.queue[wq->sq.size].status.db_off = 0; + wq->rq.queue[wq->rq.size].status.db_off = 0; +} + +static inline int t4_wq_db_enabled(struct t4_wq *wq) +{ + return !wq->sq.queue[wq->sq.size].status.db_off; +} + +struct t4_cq { + struct t4_cqe *queue; + dma_addr_t dma_addr; + DECLARE_PCI_UNMAP_ADDR(mapping); + struct t4_cqe *sw_queue; + void __iomem *gts; + struct c4iw_rdev *rdev; + u64 ugts; + size_t memsize; + u64 timestamp; + u32 cqid; + u16 size; /* including status page */ + u16 cidx; + u16 sw_pidx; + u16 sw_cidx; + u16 sw_in_use; + u16 cidx_inc; + u8 gen; + u8 error; +}; + +static inline int t4_arm_cq(struct t4_cq *cq, int se) +{ + u32 val; + u16 inc; + + do { + /* + * inc must be less the both the max update value -and- + * the size of the CQ. + */ + inc = cq->cidx_inc <= CIDXINC_MASK ? cq->cidx_inc : + CIDXINC_MASK; + inc = inc <= (cq->size - 1) ? inc : (cq->size - 1); + if (inc == cq->cidx_inc) + val = SEINTARM(se) | CIDXINC(inc) | TIMERREG(6) | + INGRESSQID(cq->cqid); + else + val = SEINTARM(0) | CIDXINC(inc) | TIMERREG(7) | + INGRESSQID(cq->cqid); + cq->cidx_inc -= inc; + writel(val, cq->gts); + } while (cq->cidx_inc); + return 0; +} + +static inline void t4_swcq_produce(struct t4_cq *cq) +{ + cq->sw_in_use++; + if (++cq->sw_pidx == cq->size) + cq->sw_pidx = 0; +} + +static inline void t4_swcq_consume(struct t4_cq *cq) +{ + cq->sw_in_use--; + if (++cq->sw_cidx == cq->size) + cq->sw_cidx = 0; +} + +static inline void t4_hwcq_consume(struct t4_cq *cq) +{ + cq->cidx_inc++; + if (++cq->cidx == cq->size) { + cq->cidx = 0; + cq->gen ^= 1; + } +} + +static inline int t4_valid_cqe(struct t4_cq *cq, struct t4_cqe *cqe) +{ + return (CQE_GENBIT(cqe) == cq->gen); +} + +static inline int t4_next_hw_cqe(struct t4_cq *cq, struct t4_cqe **cqe) +{ + int ret = 0; + u64 bits_type_ts = be64_to_cpu(cq->queue[cq->cidx].bits_type_ts); + + if (G_CQE_GENBIT(bits_type_ts) == cq->gen) { + *cqe = &cq->queue[cq->cidx]; + cq->timestamp = G_CQE_TS(bits_type_ts); + } else if (G_CQE_TS(bits_type_ts) > cq->timestamp) + ret = -EOVERFLOW; + else + ret = -ENODATA; + if (ret == -EOVERFLOW) { + printk(KERN_ERR MOD "cq overflow cqid %u\n", cq->cqid); + cq->error = 1; + } + return ret; +} + +static inline struct t4_cqe *t4_next_sw_cqe(struct t4_cq *cq) +{ + if (cq->sw_in_use) + return &cq->sw_queue[cq->sw_cidx]; + return NULL; +} + +static inline int t4_next_cqe(struct t4_cq *cq, struct t4_cqe **cqe) +{ + int ret = 0; + + if (cq->error) + ret = -ENODATA; + else if (cq->sw_in_use) + *cqe = &cq->sw_queue[cq->sw_cidx]; + else + ret = t4_next_hw_cqe(cq, cqe); + return ret; +} + +static inline int t4_cq_in_error(struct t4_cq *cq) +{ + return ((struct t4_status_page *)&cq->queue[cq->size])->qp_err; +} + +static inline void t4_set_cq_in_error(struct t4_cq *cq) +{ + ((struct t4_status_page *)&cq->queue[cq->size])->qp_err = 1; +} +#endif diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h new file mode 100644 index 000000000000..fc706bd07fae --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h @@ -0,0 +1,829 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef _T4FW_RI_API_H_ +#define _T4FW_RI_API_H_ + +#include "t4fw_api.h" + +enum fw_ri_wr_opcode { + FW_RI_RDMA_WRITE = 0x0, /* IETF RDMAP v1.0 ... */ + FW_RI_READ_REQ = 0x1, + FW_RI_READ_RESP = 0x2, + FW_RI_SEND = 0x3, + FW_RI_SEND_WITH_INV = 0x4, + FW_RI_SEND_WITH_SE = 0x5, + FW_RI_SEND_WITH_SE_INV = 0x6, + FW_RI_TERMINATE = 0x7, + FW_RI_RDMA_INIT = 0x8, /* CHELSIO RI specific ... */ + FW_RI_BIND_MW = 0x9, + FW_RI_FAST_REGISTER = 0xa, + FW_RI_LOCAL_INV = 0xb, + FW_RI_QP_MODIFY = 0xc, + FW_RI_BYPASS = 0xd, + FW_RI_RECEIVE = 0xe, + + FW_RI_SGE_EC_CR_RETURN = 0xf +}; + +enum fw_ri_wr_flags { + FW_RI_COMPLETION_FLAG = 0x01, + FW_RI_NOTIFICATION_FLAG = 0x02, + FW_RI_SOLICITED_EVENT_FLAG = 0x04, + FW_RI_READ_FENCE_FLAG = 0x08, + FW_RI_LOCAL_FENCE_FLAG = 0x10, + FW_RI_RDMA_READ_INVALIDATE = 0x20 +}; + +enum fw_ri_mpa_attrs { + FW_RI_MPA_RX_MARKER_ENABLE = 0x01, + FW_RI_MPA_TX_MARKER_ENABLE = 0x02, + FW_RI_MPA_CRC_ENABLE = 0x04, + FW_RI_MPA_IETF_ENABLE = 0x08 +}; + +enum fw_ri_qp_caps { + FW_RI_QP_RDMA_READ_ENABLE = 0x01, + FW_RI_QP_RDMA_WRITE_ENABLE = 0x02, + FW_RI_QP_BIND_ENABLE = 0x04, + FW_RI_QP_FAST_REGISTER_ENABLE = 0x08, + FW_RI_QP_STAG0_ENABLE = 0x10 +}; + +enum fw_ri_addr_type { + FW_RI_ZERO_BASED_TO = 0x00, + FW_RI_VA_BASED_TO = 0x01 +}; + +enum fw_ri_mem_perms { + FW_RI_MEM_ACCESS_REM_WRITE = 0x01, + FW_RI_MEM_ACCESS_REM_READ = 0x02, + FW_RI_MEM_ACCESS_REM = 0x03, + FW_RI_MEM_ACCESS_LOCAL_WRITE = 0x04, + FW_RI_MEM_ACCESS_LOCAL_READ = 0x08, + FW_RI_MEM_ACCESS_LOCAL = 0x0C +}; + +enum fw_ri_stag_type { + FW_RI_STAG_NSMR = 0x00, + FW_RI_STAG_SMR = 0x01, + FW_RI_STAG_MW = 0x02, + FW_RI_STAG_MW_RELAXED = 0x03 +}; + +enum fw_ri_data_op { + FW_RI_DATA_IMMD = 0x81, + FW_RI_DATA_DSGL = 0x82, + FW_RI_DATA_ISGL = 0x83 +}; + +enum fw_ri_sgl_depth { + FW_RI_SGL_DEPTH_MAX_SQ = 16, + FW_RI_SGL_DEPTH_MAX_RQ = 4 +}; + +struct fw_ri_dsge_pair { + __be32 len[2]; + __be64 addr[2]; +}; + +struct fw_ri_dsgl { + __u8 op; + __u8 r1; + __be16 nsge; + __be32 len0; + __be64 addr0; +#ifndef C99_NOT_SUPPORTED + struct fw_ri_dsge_pair sge[0]; +#endif +}; + +struct fw_ri_sge { + __be32 stag; + __be32 len; + __be64 to; +}; + +struct fw_ri_isgl { + __u8 op; + __u8 r1; + __be16 nsge; + __be32 r2; +#ifndef C99_NOT_SUPPORTED + struct fw_ri_sge sge[0]; +#endif +}; + +struct fw_ri_immd { + __u8 op; + __u8 r1; + __be16 r2; + __be32 immdlen; +#ifndef C99_NOT_SUPPORTED + __u8 data[0]; +#endif +}; + +struct fw_ri_tpte { + __be32 valid_to_pdid; + __be32 locread_to_qpid; + __be32 nosnoop_pbladdr; + __be32 len_lo; + __be32 va_hi; + __be32 va_lo_fbo; + __be32 dca_mwbcnt_pstag; + __be32 len_hi; +}; + +#define S_FW_RI_TPTE_VALID 31 +#define M_FW_RI_TPTE_VALID 0x1 +#define V_FW_RI_TPTE_VALID(x) ((x) << S_FW_RI_TPTE_VALID) +#define G_FW_RI_TPTE_VALID(x) \ + (((x) >> S_FW_RI_TPTE_VALID) & M_FW_RI_TPTE_VALID) +#define F_FW_RI_TPTE_VALID V_FW_RI_TPTE_VALID(1U) + +#define S_FW_RI_TPTE_STAGKEY 23 +#define M_FW_RI_TPTE_STAGKEY 0xff +#define V_FW_RI_TPTE_STAGKEY(x) ((x) << S_FW_RI_TPTE_STAGKEY) +#define G_FW_RI_TPTE_STAGKEY(x) \ + (((x) >> S_FW_RI_TPTE_STAGKEY) & M_FW_RI_TPTE_STAGKEY) + +#define S_FW_RI_TPTE_STAGSTATE 22 +#define M_FW_RI_TPTE_STAGSTATE 0x1 +#define V_FW_RI_TPTE_STAGSTATE(x) ((x) << S_FW_RI_TPTE_STAGSTATE) +#define G_FW_RI_TPTE_STAGSTATE(x) \ + (((x) >> S_FW_RI_TPTE_STAGSTATE) & M_FW_RI_TPTE_STAGSTATE) +#define F_FW_RI_TPTE_STAGSTATE V_FW_RI_TPTE_STAGSTATE(1U) + +#define S_FW_RI_TPTE_STAGTYPE 20 +#define M_FW_RI_TPTE_STAGTYPE 0x3 +#define V_FW_RI_TPTE_STAGTYPE(x) ((x) << S_FW_RI_TPTE_STAGTYPE) +#define G_FW_RI_TPTE_STAGTYPE(x) \ + (((x) >> S_FW_RI_TPTE_STAGTYPE) & M_FW_RI_TPTE_STAGTYPE) + +#define S_FW_RI_TPTE_PDID 0 +#define M_FW_RI_TPTE_PDID 0xfffff +#define V_FW_RI_TPTE_PDID(x) ((x) << S_FW_RI_TPTE_PDID) +#define G_FW_RI_TPTE_PDID(x) \ + (((x) >> S_FW_RI_TPTE_PDID) & M_FW_RI_TPTE_PDID) + +#define S_FW_RI_TPTE_PERM 28 +#define M_FW_RI_TPTE_PERM 0xf +#define V_FW_RI_TPTE_PERM(x) ((x) << S_FW_RI_TPTE_PERM) +#define G_FW_RI_TPTE_PERM(x) \ + (((x) >> S_FW_RI_TPTE_PERM) & M_FW_RI_TPTE_PERM) + +#define S_FW_RI_TPTE_REMINVDIS 27 +#define M_FW_RI_TPTE_REMINVDIS 0x1 +#define V_FW_RI_TPTE_REMINVDIS(x) ((x) << S_FW_RI_TPTE_REMINVDIS) +#define G_FW_RI_TPTE_REMINVDIS(x) \ + (((x) >> S_FW_RI_TPTE_REMINVDIS) & M_FW_RI_TPTE_REMINVDIS) +#define F_FW_RI_TPTE_REMINVDIS V_FW_RI_TPTE_REMINVDIS(1U) + +#define S_FW_RI_TPTE_ADDRTYPE 26 +#define M_FW_RI_TPTE_ADDRTYPE 1 +#define V_FW_RI_TPTE_ADDRTYPE(x) ((x) << S_FW_RI_TPTE_ADDRTYPE) +#define G_FW_RI_TPTE_ADDRTYPE(x) \ + (((x) >> S_FW_RI_TPTE_ADDRTYPE) & M_FW_RI_TPTE_ADDRTYPE) +#define F_FW_RI_TPTE_ADDRTYPE V_FW_RI_TPTE_ADDRTYPE(1U) + +#define S_FW_RI_TPTE_MWBINDEN 25 +#define M_FW_RI_TPTE_MWBINDEN 0x1 +#define V_FW_RI_TPTE_MWBINDEN(x) ((x) << S_FW_RI_TPTE_MWBINDEN) +#define G_FW_RI_TPTE_MWBINDEN(x) \ + (((x) >> S_FW_RI_TPTE_MWBINDEN) & M_FW_RI_TPTE_MWBINDEN) +#define F_FW_RI_TPTE_MWBINDEN V_FW_RI_TPTE_MWBINDEN(1U) + +#define S_FW_RI_TPTE_PS 20 +#define M_FW_RI_TPTE_PS 0x1f +#define V_FW_RI_TPTE_PS(x) ((x) << S_FW_RI_TPTE_PS) +#define G_FW_RI_TPTE_PS(x) \ + (((x) >> S_FW_RI_TPTE_PS) & M_FW_RI_TPTE_PS) + +#define S_FW_RI_TPTE_QPID 0 +#define M_FW_RI_TPTE_QPID 0xfffff +#define V_FW_RI_TPTE_QPID(x) ((x) << S_FW_RI_TPTE_QPID) +#define G_FW_RI_TPTE_QPID(x) \ + (((x) >> S_FW_RI_TPTE_QPID) & M_FW_RI_TPTE_QPID) + +#define S_FW_RI_TPTE_NOSNOOP 30 +#define M_FW_RI_TPTE_NOSNOOP 0x1 +#define V_FW_RI_TPTE_NOSNOOP(x) ((x) << S_FW_RI_TPTE_NOSNOOP) +#define G_FW_RI_TPTE_NOSNOOP(x) \ + (((x) >> S_FW_RI_TPTE_NOSNOOP) & M_FW_RI_TPTE_NOSNOOP) +#define F_FW_RI_TPTE_NOSNOOP V_FW_RI_TPTE_NOSNOOP(1U) + +#define S_FW_RI_TPTE_PBLADDR 0 +#define M_FW_RI_TPTE_PBLADDR 0x1fffffff +#define V_FW_RI_TPTE_PBLADDR(x) ((x) << S_FW_RI_TPTE_PBLADDR) +#define G_FW_RI_TPTE_PBLADDR(x) \ + (((x) >> S_FW_RI_TPTE_PBLADDR) & M_FW_RI_TPTE_PBLADDR) + +#define S_FW_RI_TPTE_DCA 24 +#define M_FW_RI_TPTE_DCA 0x1f +#define V_FW_RI_TPTE_DCA(x) ((x) << S_FW_RI_TPTE_DCA) +#define G_FW_RI_TPTE_DCA(x) \ + (((x) >> S_FW_RI_TPTE_DCA) & M_FW_RI_TPTE_DCA) + +#define S_FW_RI_TPTE_MWBCNT_PSTAG 0 +#define M_FW_RI_TPTE_MWBCNT_PSTAG 0xffffff +#define V_FW_RI_TPTE_MWBCNT_PSTAT(x) \ + ((x) << S_FW_RI_TPTE_MWBCNT_PSTAG) +#define G_FW_RI_TPTE_MWBCNT_PSTAG(x) \ + (((x) >> S_FW_RI_TPTE_MWBCNT_PSTAG) & M_FW_RI_TPTE_MWBCNT_PSTAG) + +enum fw_ri_res_type { + FW_RI_RES_TYPE_SQ, + FW_RI_RES_TYPE_RQ, + FW_RI_RES_TYPE_CQ, +}; + +enum fw_ri_res_op { + FW_RI_RES_OP_WRITE, + FW_RI_RES_OP_RESET, +}; + +struct fw_ri_res { + union fw_ri_restype { + struct fw_ri_res_sqrq { + __u8 restype; + __u8 op; + __be16 r3; + __be32 eqid; + __be32 r4[2]; + __be32 fetchszm_to_iqid; + __be32 dcaen_to_eqsize; + __be64 eqaddr; + } sqrq; + struct fw_ri_res_cq { + __u8 restype; + __u8 op; + __be16 r3; + __be32 iqid; + __be32 r4[2]; + __be32 iqandst_to_iqandstindex; + __be16 iqdroprss_to_iqesize; + __be16 iqsize; + __be64 iqaddr; + __be32 iqns_iqro; + __be32 r6_lo; + __be64 r7; + } cq; + } u; +}; + +struct fw_ri_res_wr { + __be32 op_nres; + __be32 len16_pkd; + __u64 cookie; +#ifndef C99_NOT_SUPPORTED + struct fw_ri_res res[0]; +#endif +}; + +#define S_FW_RI_RES_WR_NRES 0 +#define M_FW_RI_RES_WR_NRES 0xff +#define V_FW_RI_RES_WR_NRES(x) ((x) << S_FW_RI_RES_WR_NRES) +#define G_FW_RI_RES_WR_NRES(x) \ + (((x) >> S_FW_RI_RES_WR_NRES) & M_FW_RI_RES_WR_NRES) + +#define S_FW_RI_RES_WR_FETCHSZM 26 +#define M_FW_RI_RES_WR_FETCHSZM 0x1 +#define V_FW_RI_RES_WR_FETCHSZM(x) ((x) << S_FW_RI_RES_WR_FETCHSZM) +#define G_FW_RI_RES_WR_FETCHSZM(x) \ + (((x) >> S_FW_RI_RES_WR_FETCHSZM) & M_FW_RI_RES_WR_FETCHSZM) +#define F_FW_RI_RES_WR_FETCHSZM V_FW_RI_RES_WR_FETCHSZM(1U) + +#define S_FW_RI_RES_WR_STATUSPGNS 25 +#define M_FW_RI_RES_WR_STATUSPGNS 0x1 +#define V_FW_RI_RES_WR_STATUSPGNS(x) ((x) << S_FW_RI_RES_WR_STATUSPGNS) +#define G_FW_RI_RES_WR_STATUSPGNS(x) \ + (((x) >> S_FW_RI_RES_WR_STATUSPGNS) & M_FW_RI_RES_WR_STATUSPGNS) +#define F_FW_RI_RES_WR_STATUSPGNS V_FW_RI_RES_WR_STATUSPGNS(1U) + +#define S_FW_RI_RES_WR_STATUSPGRO 24 +#define M_FW_RI_RES_WR_STATUSPGRO 0x1 +#define V_FW_RI_RES_WR_STATUSPGRO(x) ((x) << S_FW_RI_RES_WR_STATUSPGRO) +#define G_FW_RI_RES_WR_STATUSPGRO(x) \ + (((x) >> S_FW_RI_RES_WR_STATUSPGRO) & M_FW_RI_RES_WR_STATUSPGRO) +#define F_FW_RI_RES_WR_STATUSPGRO V_FW_RI_RES_WR_STATUSPGRO(1U) + +#define S_FW_RI_RES_WR_FETCHNS 23 +#define M_FW_RI_RES_WR_FETCHNS 0x1 +#define V_FW_RI_RES_WR_FETCHNS(x) ((x) << S_FW_RI_RES_WR_FETCHNS) +#define G_FW_RI_RES_WR_FETCHNS(x) \ + (((x) >> S_FW_RI_RES_WR_FETCHNS) & M_FW_RI_RES_WR_FETCHNS) +#define F_FW_RI_RES_WR_FETCHNS V_FW_RI_RES_WR_FETCHNS(1U) + +#define S_FW_RI_RES_WR_FETCHRO 22 +#define M_FW_RI_RES_WR_FETCHRO 0x1 +#define V_FW_RI_RES_WR_FETCHRO(x) ((x) << S_FW_RI_RES_WR_FETCHRO) +#define G_FW_RI_RES_WR_FETCHRO(x) \ + (((x) >> S_FW_RI_RES_WR_FETCHRO) & M_FW_RI_RES_WR_FETCHRO) +#define F_FW_RI_RES_WR_FETCHRO V_FW_RI_RES_WR_FETCHRO(1U) + +#define S_FW_RI_RES_WR_HOSTFCMODE 20 +#define M_FW_RI_RES_WR_HOSTFCMODE 0x3 +#define V_FW_RI_RES_WR_HOSTFCMODE(x) ((x) << S_FW_RI_RES_WR_HOSTFCMODE) +#define G_FW_RI_RES_WR_HOSTFCMODE(x) \ + (((x) >> S_FW_RI_RES_WR_HOSTFCMODE) & M_FW_RI_RES_WR_HOSTFCMODE) + +#define S_FW_RI_RES_WR_CPRIO 19 +#define M_FW_RI_RES_WR_CPRIO 0x1 +#define V_FW_RI_RES_WR_CPRIO(x) ((x) << S_FW_RI_RES_WR_CPRIO) +#define G_FW_RI_RES_WR_CPRIO(x) \ + (((x) >> S_FW_RI_RES_WR_CPRIO) & M_FW_RI_RES_WR_CPRIO) +#define F_FW_RI_RES_WR_CPRIO V_FW_RI_RES_WR_CPRIO(1U) + +#define S_FW_RI_RES_WR_ONCHIP 18 +#define M_FW_RI_RES_WR_ONCHIP 0x1 +#define V_FW_RI_RES_WR_ONCHIP(x) ((x) << S_FW_RI_RES_WR_ONCHIP) +#define G_FW_RI_RES_WR_ONCHIP(x) \ + (((x) >> S_FW_RI_RES_WR_ONCHIP) & M_FW_RI_RES_WR_ONCHIP) +#define F_FW_RI_RES_WR_ONCHIP V_FW_RI_RES_WR_ONCHIP(1U) + +#define S_FW_RI_RES_WR_PCIECHN 16 +#define M_FW_RI_RES_WR_PCIECHN 0x3 +#define V_FW_RI_RES_WR_PCIECHN(x) ((x) << S_FW_RI_RES_WR_PCIECHN) +#define G_FW_RI_RES_WR_PCIECHN(x) \ + (((x) >> S_FW_RI_RES_WR_PCIECHN) & M_FW_RI_RES_WR_PCIECHN) + +#define S_FW_RI_RES_WR_IQID 0 +#define M_FW_RI_RES_WR_IQID 0xffff +#define V_FW_RI_RES_WR_IQID(x) ((x) << S_FW_RI_RES_WR_IQID) +#define G_FW_RI_RES_WR_IQID(x) \ + (((x) >> S_FW_RI_RES_WR_IQID) & M_FW_RI_RES_WR_IQID) + +#define S_FW_RI_RES_WR_DCAEN 31 +#define M_FW_RI_RES_WR_DCAEN 0x1 +#define V_FW_RI_RES_WR_DCAEN(x) ((x) << S_FW_RI_RES_WR_DCAEN) +#define G_FW_RI_RES_WR_DCAEN(x) \ + (((x) >> S_FW_RI_RES_WR_DCAEN) & M_FW_RI_RES_WR_DCAEN) +#define F_FW_RI_RES_WR_DCAEN V_FW_RI_RES_WR_DCAEN(1U) + +#define S_FW_RI_RES_WR_DCACPU 26 +#define M_FW_RI_RES_WR_DCACPU 0x1f +#define V_FW_RI_RES_WR_DCACPU(x) ((x) << S_FW_RI_RES_WR_DCACPU) +#define G_FW_RI_RES_WR_DCACPU(x) \ + (((x) >> S_FW_RI_RES_WR_DCACPU) & M_FW_RI_RES_WR_DCACPU) + +#define S_FW_RI_RES_WR_FBMIN 23 +#define M_FW_RI_RES_WR_FBMIN 0x7 +#define V_FW_RI_RES_WR_FBMIN(x) ((x) << S_FW_RI_RES_WR_FBMIN) +#define G_FW_RI_RES_WR_FBMIN(x) \ + (((x) >> S_FW_RI_RES_WR_FBMIN) & M_FW_RI_RES_WR_FBMIN) + +#define S_FW_RI_RES_WR_FBMAX 20 +#define M_FW_RI_RES_WR_FBMAX 0x7 +#define V_FW_RI_RES_WR_FBMAX(x) ((x) << S_FW_RI_RES_WR_FBMAX) +#define G_FW_RI_RES_WR_FBMAX(x) \ + (((x) >> S_FW_RI_RES_WR_FBMAX) & M_FW_RI_RES_WR_FBMAX) + +#define S_FW_RI_RES_WR_CIDXFTHRESHO 19 +#define M_FW_RI_RES_WR_CIDXFTHRESHO 0x1 +#define V_FW_RI_RES_WR_CIDXFTHRESHO(x) ((x) << S_FW_RI_RES_WR_CIDXFTHRESHO) +#define G_FW_RI_RES_WR_CIDXFTHRESHO(x) \ + (((x) >> S_FW_RI_RES_WR_CIDXFTHRESHO) & M_FW_RI_RES_WR_CIDXFTHRESHO) +#define F_FW_RI_RES_WR_CIDXFTHRESHO V_FW_RI_RES_WR_CIDXFTHRESHO(1U) + +#define S_FW_RI_RES_WR_CIDXFTHRESH 16 +#define M_FW_RI_RES_WR_CIDXFTHRESH 0x7 +#define V_FW_RI_RES_WR_CIDXFTHRESH(x) ((x) << S_FW_RI_RES_WR_CIDXFTHRESH) +#define G_FW_RI_RES_WR_CIDXFTHRESH(x) \ + (((x) >> S_FW_RI_RES_WR_CIDXFTHRESH) & M_FW_RI_RES_WR_CIDXFTHRESH) + +#define S_FW_RI_RES_WR_EQSIZE 0 +#define M_FW_RI_RES_WR_EQSIZE 0xffff +#define V_FW_RI_RES_WR_EQSIZE(x) ((x) << S_FW_RI_RES_WR_EQSIZE) +#define G_FW_RI_RES_WR_EQSIZE(x) \ + (((x) >> S_FW_RI_RES_WR_EQSIZE) & M_FW_RI_RES_WR_EQSIZE) + +#define S_FW_RI_RES_WR_IQANDST 15 +#define M_FW_RI_RES_WR_IQANDST 0x1 +#define V_FW_RI_RES_WR_IQANDST(x) ((x) << S_FW_RI_RES_WR_IQANDST) +#define G_FW_RI_RES_WR_IQANDST(x) \ + (((x) >> S_FW_RI_RES_WR_IQANDST) & M_FW_RI_RES_WR_IQANDST) +#define F_FW_RI_RES_WR_IQANDST V_FW_RI_RES_WR_IQANDST(1U) + +#define S_FW_RI_RES_WR_IQANUS 14 +#define M_FW_RI_RES_WR_IQANUS 0x1 +#define V_FW_RI_RES_WR_IQANUS(x) ((x) << S_FW_RI_RES_WR_IQANUS) +#define G_FW_RI_RES_WR_IQANUS(x) \ + (((x) >> S_FW_RI_RES_WR_IQANUS) & M_FW_RI_RES_WR_IQANUS) +#define F_FW_RI_RES_WR_IQANUS V_FW_RI_RES_WR_IQANUS(1U) + +#define S_FW_RI_RES_WR_IQANUD 12 +#define M_FW_RI_RES_WR_IQANUD 0x3 +#define V_FW_RI_RES_WR_IQANUD(x) ((x) << S_FW_RI_RES_WR_IQANUD) +#define G_FW_RI_RES_WR_IQANUD(x) \ + (((x) >> S_FW_RI_RES_WR_IQANUD) & M_FW_RI_RES_WR_IQANUD) + +#define S_FW_RI_RES_WR_IQANDSTINDEX 0 +#define M_FW_RI_RES_WR_IQANDSTINDEX 0xfff +#define V_FW_RI_RES_WR_IQANDSTINDEX(x) ((x) << S_FW_RI_RES_WR_IQANDSTINDEX) +#define G_FW_RI_RES_WR_IQANDSTINDEX(x) \ + (((x) >> S_FW_RI_RES_WR_IQANDSTINDEX) & M_FW_RI_RES_WR_IQANDSTINDEX) + +#define S_FW_RI_RES_WR_IQDROPRSS 15 +#define M_FW_RI_RES_WR_IQDROPRSS 0x1 +#define V_FW_RI_RES_WR_IQDROPRSS(x) ((x) << S_FW_RI_RES_WR_IQDROPRSS) +#define G_FW_RI_RES_WR_IQDROPRSS(x) \ + (((x) >> S_FW_RI_RES_WR_IQDROPRSS) & M_FW_RI_RES_WR_IQDROPRSS) +#define F_FW_RI_RES_WR_IQDROPRSS V_FW_RI_RES_WR_IQDROPRSS(1U) + +#define S_FW_RI_RES_WR_IQGTSMODE 14 +#define M_FW_RI_RES_WR_IQGTSMODE 0x1 +#define V_FW_RI_RES_WR_IQGTSMODE(x) ((x) << S_FW_RI_RES_WR_IQGTSMODE) +#define G_FW_RI_RES_WR_IQGTSMODE(x) \ + (((x) >> S_FW_RI_RES_WR_IQGTSMODE) & M_FW_RI_RES_WR_IQGTSMODE) +#define F_FW_RI_RES_WR_IQGTSMODE V_FW_RI_RES_WR_IQGTSMODE(1U) + +#define S_FW_RI_RES_WR_IQPCIECH 12 +#define M_FW_RI_RES_WR_IQPCIECH 0x3 +#define V_FW_RI_RES_WR_IQPCIECH(x) ((x) << S_FW_RI_RES_WR_IQPCIECH) +#define G_FW_RI_RES_WR_IQPCIECH(x) \ + (((x) >> S_FW_RI_RES_WR_IQPCIECH) & M_FW_RI_RES_WR_IQPCIECH) + +#define S_FW_RI_RES_WR_IQDCAEN 11 +#define M_FW_RI_RES_WR_IQDCAEN 0x1 +#define V_FW_RI_RES_WR_IQDCAEN(x) ((x) << S_FW_RI_RES_WR_IQDCAEN) +#define G_FW_RI_RES_WR_IQDCAEN(x) \ + (((x) >> S_FW_RI_RES_WR_IQDCAEN) & M_FW_RI_RES_WR_IQDCAEN) +#define F_FW_RI_RES_WR_IQDCAEN V_FW_RI_RES_WR_IQDCAEN(1U) + +#define S_FW_RI_RES_WR_IQDCACPU 6 +#define M_FW_RI_RES_WR_IQDCACPU 0x1f +#define V_FW_RI_RES_WR_IQDCACPU(x) ((x) << S_FW_RI_RES_WR_IQDCACPU) +#define G_FW_RI_RES_WR_IQDCACPU(x) \ + (((x) >> S_FW_RI_RES_WR_IQDCACPU) & M_FW_RI_RES_WR_IQDCACPU) + +#define S_FW_RI_RES_WR_IQINTCNTTHRESH 4 +#define M_FW_RI_RES_WR_IQINTCNTTHRESH 0x3 +#define V_FW_RI_RES_WR_IQINTCNTTHRESH(x) \ + ((x) << S_FW_RI_RES_WR_IQINTCNTTHRESH) +#define G_FW_RI_RES_WR_IQINTCNTTHRESH(x) \ + (((x) >> S_FW_RI_RES_WR_IQINTCNTTHRESH) & M_FW_RI_RES_WR_IQINTCNTTHRESH) + +#define S_FW_RI_RES_WR_IQO 3 +#define M_FW_RI_RES_WR_IQO 0x1 +#define V_FW_RI_RES_WR_IQO(x) ((x) << S_FW_RI_RES_WR_IQO) +#define G_FW_RI_RES_WR_IQO(x) \ + (((x) >> S_FW_RI_RES_WR_IQO) & M_FW_RI_RES_WR_IQO) +#define F_FW_RI_RES_WR_IQO V_FW_RI_RES_WR_IQO(1U) + +#define S_FW_RI_RES_WR_IQCPRIO 2 +#define M_FW_RI_RES_WR_IQCPRIO 0x1 +#define V_FW_RI_RES_WR_IQCPRIO(x) ((x) << S_FW_RI_RES_WR_IQCPRIO) +#define G_FW_RI_RES_WR_IQCPRIO(x) \ + (((x) >> S_FW_RI_RES_WR_IQCPRIO) & M_FW_RI_RES_WR_IQCPRIO) +#define F_FW_RI_RES_WR_IQCPRIO V_FW_RI_RES_WR_IQCPRIO(1U) + +#define S_FW_RI_RES_WR_IQESIZE 0 +#define M_FW_RI_RES_WR_IQESIZE 0x3 +#define V_FW_RI_RES_WR_IQESIZE(x) ((x) << S_FW_RI_RES_WR_IQESIZE) +#define G_FW_RI_RES_WR_IQESIZE(x) \ + (((x) >> S_FW_RI_RES_WR_IQESIZE) & M_FW_RI_RES_WR_IQESIZE) + +#define S_FW_RI_RES_WR_IQNS 31 +#define M_FW_RI_RES_WR_IQNS 0x1 +#define V_FW_RI_RES_WR_IQNS(x) ((x) << S_FW_RI_RES_WR_IQNS) +#define G_FW_RI_RES_WR_IQNS(x) \ + (((x) >> S_FW_RI_RES_WR_IQNS) & M_FW_RI_RES_WR_IQNS) +#define F_FW_RI_RES_WR_IQNS V_FW_RI_RES_WR_IQNS(1U) + +#define S_FW_RI_RES_WR_IQRO 30 +#define M_FW_RI_RES_WR_IQRO 0x1 +#define V_FW_RI_RES_WR_IQRO(x) ((x) << S_FW_RI_RES_WR_IQRO) +#define G_FW_RI_RES_WR_IQRO(x) \ + (((x) >> S_FW_RI_RES_WR_IQRO) & M_FW_RI_RES_WR_IQRO) +#define F_FW_RI_RES_WR_IQRO V_FW_RI_RES_WR_IQRO(1U) + +struct fw_ri_rdma_write_wr { + __u8 opcode; + __u8 flags; + __u16 wrid; + __u8 r1[3]; + __u8 len16; + __be64 r2; + __be32 plen; + __be32 stag_sink; + __be64 to_sink; +#ifndef C99_NOT_SUPPORTED + union { + struct fw_ri_immd immd_src[0]; + struct fw_ri_isgl isgl_src[0]; + } u; +#endif +}; + +struct fw_ri_send_wr { + __u8 opcode; + __u8 flags; + __u16 wrid; + __u8 r1[3]; + __u8 len16; + __be32 sendop_pkd; + __be32 stag_inv; + __be32 plen; + __be32 r3; + __be64 r4; +#ifndef C99_NOT_SUPPORTED + union { + struct fw_ri_immd immd_src[0]; + struct fw_ri_isgl isgl_src[0]; + } u; +#endif +}; + +#define S_FW_RI_SEND_WR_SENDOP 0 +#define M_FW_RI_SEND_WR_SENDOP 0xf +#define V_FW_RI_SEND_WR_SENDOP(x) ((x) << S_FW_RI_SEND_WR_SENDOP) +#define G_FW_RI_SEND_WR_SENDOP(x) \ + (((x) >> S_FW_RI_SEND_WR_SENDOP) & M_FW_RI_SEND_WR_SENDOP) + +struct fw_ri_rdma_read_wr { + __u8 opcode; + __u8 flags; + __u16 wrid; + __u8 r1[3]; + __u8 len16; + __be64 r2; + __be32 stag_sink; + __be32 to_sink_hi; + __be32 to_sink_lo; + __be32 plen; + __be32 stag_src; + __be32 to_src_hi; + __be32 to_src_lo; + __be32 r5; +}; + +struct fw_ri_recv_wr { + __u8 opcode; + __u8 r1; + __u16 wrid; + __u8 r2[3]; + __u8 len16; + struct fw_ri_isgl isgl; +}; + +struct fw_ri_bind_mw_wr { + __u8 opcode; + __u8 flags; + __u16 wrid; + __u8 r1[3]; + __u8 len16; + __u8 qpbinde_to_dcacpu; + __u8 pgsz_shift; + __u8 addr_type; + __u8 mem_perms; + __be32 stag_mr; + __be32 stag_mw; + __be32 r3; + __be64 len_mw; + __be64 va_fbo; + __be64 r4; +}; + +#define S_FW_RI_BIND_MW_WR_QPBINDE 6 +#define M_FW_RI_BIND_MW_WR_QPBINDE 0x1 +#define V_FW_RI_BIND_MW_WR_QPBINDE(x) ((x) << S_FW_RI_BIND_MW_WR_QPBINDE) +#define G_FW_RI_BIND_MW_WR_QPBINDE(x) \ + (((x) >> S_FW_RI_BIND_MW_WR_QPBINDE) & M_FW_RI_BIND_MW_WR_QPBINDE) +#define F_FW_RI_BIND_MW_WR_QPBINDE V_FW_RI_BIND_MW_WR_QPBINDE(1U) + +#define S_FW_RI_BIND_MW_WR_NS 5 +#define M_FW_RI_BIND_MW_WR_NS 0x1 +#define V_FW_RI_BIND_MW_WR_NS(x) ((x) << S_FW_RI_BIND_MW_WR_NS) +#define G_FW_RI_BIND_MW_WR_NS(x) \ + (((x) >> S_FW_RI_BIND_MW_WR_NS) & M_FW_RI_BIND_MW_WR_NS) +#define F_FW_RI_BIND_MW_WR_NS V_FW_RI_BIND_MW_WR_NS(1U) + +#define S_FW_RI_BIND_MW_WR_DCACPU 0 +#define M_FW_RI_BIND_MW_WR_DCACPU 0x1f +#define V_FW_RI_BIND_MW_WR_DCACPU(x) ((x) << S_FW_RI_BIND_MW_WR_DCACPU) +#define G_FW_RI_BIND_MW_WR_DCACPU(x) \ + (((x) >> S_FW_RI_BIND_MW_WR_DCACPU) & M_FW_RI_BIND_MW_WR_DCACPU) + +struct fw_ri_fr_nsmr_wr { + __u8 opcode; + __u8 flags; + __u16 wrid; + __u8 r1[3]; + __u8 len16; + __u8 qpbinde_to_dcacpu; + __u8 pgsz_shift; + __u8 addr_type; + __u8 mem_perms; + __be32 stag; + __be32 len_hi; + __be32 len_lo; + __be32 va_hi; + __be32 va_lo_fbo; +}; + +#define S_FW_RI_FR_NSMR_WR_QPBINDE 6 +#define M_FW_RI_FR_NSMR_WR_QPBINDE 0x1 +#define V_FW_RI_FR_NSMR_WR_QPBINDE(x) ((x) << S_FW_RI_FR_NSMR_WR_QPBINDE) +#define G_FW_RI_FR_NSMR_WR_QPBINDE(x) \ + (((x) >> S_FW_RI_FR_NSMR_WR_QPBINDE) & M_FW_RI_FR_NSMR_WR_QPBINDE) +#define F_FW_RI_FR_NSMR_WR_QPBINDE V_FW_RI_FR_NSMR_WR_QPBINDE(1U) + +#define S_FW_RI_FR_NSMR_WR_NS 5 +#define M_FW_RI_FR_NSMR_WR_NS 0x1 +#define V_FW_RI_FR_NSMR_WR_NS(x) ((x) << S_FW_RI_FR_NSMR_WR_NS) +#define G_FW_RI_FR_NSMR_WR_NS(x) \ + (((x) >> S_FW_RI_FR_NSMR_WR_NS) & M_FW_RI_FR_NSMR_WR_NS) +#define F_FW_RI_FR_NSMR_WR_NS V_FW_RI_FR_NSMR_WR_NS(1U) + +#define S_FW_RI_FR_NSMR_WR_DCACPU 0 +#define M_FW_RI_FR_NSMR_WR_DCACPU 0x1f +#define V_FW_RI_FR_NSMR_WR_DCACPU(x) ((x) << S_FW_RI_FR_NSMR_WR_DCACPU) +#define G_FW_RI_FR_NSMR_WR_DCACPU(x) \ + (((x) >> S_FW_RI_FR_NSMR_WR_DCACPU) & M_FW_RI_FR_NSMR_WR_DCACPU) + +struct fw_ri_inv_lstag_wr { + __u8 opcode; + __u8 flags; + __u16 wrid; + __u8 r1[3]; + __u8 len16; + __be32 r2; + __be32 stag_inv; +}; + +enum fw_ri_type { + FW_RI_TYPE_INIT, + FW_RI_TYPE_FINI, + FW_RI_TYPE_TERMINATE +}; + +enum fw_ri_init_p2ptype { + FW_RI_INIT_P2PTYPE_RDMA_WRITE = FW_RI_RDMA_WRITE, + FW_RI_INIT_P2PTYPE_READ_REQ = FW_RI_READ_REQ, + FW_RI_INIT_P2PTYPE_SEND = FW_RI_SEND, + FW_RI_INIT_P2PTYPE_SEND_WITH_INV = FW_RI_SEND_WITH_INV, + FW_RI_INIT_P2PTYPE_SEND_WITH_SE = FW_RI_SEND_WITH_SE, + FW_RI_INIT_P2PTYPE_SEND_WITH_SE_INV = FW_RI_SEND_WITH_SE_INV, + FW_RI_INIT_P2PTYPE_DISABLED = 0xf, +}; + +struct fw_ri_wr { + __be32 op_compl; + __be32 flowid_len16; + __u64 cookie; + union fw_ri { + struct fw_ri_init { + __u8 type; + __u8 mpareqbit_p2ptype; + __u8 r4[2]; + __u8 mpa_attrs; + __u8 qp_caps; + __be16 nrqe; + __be32 pdid; + __be32 qpid; + __be32 sq_eqid; + __be32 rq_eqid; + __be32 scqid; + __be32 rcqid; + __be32 ord_max; + __be32 ird_max; + __be32 iss; + __be32 irs; + __be32 hwrqsize; + __be32 hwrqaddr; + __be64 r5; + union fw_ri_init_p2p { + struct fw_ri_rdma_write_wr write; + struct fw_ri_rdma_read_wr read; + struct fw_ri_send_wr send; + } u; + } init; + struct fw_ri_fini { + __u8 type; + __u8 r3[7]; + __be64 r4; + } fini; + struct fw_ri_terminate { + __u8 type; + __u8 r3[3]; + __be32 immdlen; + __u8 termmsg[40]; + } terminate; + } u; +}; + +#define S_FW_RI_WR_MPAREQBIT 7 +#define M_FW_RI_WR_MPAREQBIT 0x1 +#define V_FW_RI_WR_MPAREQBIT(x) ((x) << S_FW_RI_WR_MPAREQBIT) +#define G_FW_RI_WR_MPAREQBIT(x) \ + (((x) >> S_FW_RI_WR_MPAREQBIT) & M_FW_RI_WR_MPAREQBIT) +#define F_FW_RI_WR_MPAREQBIT V_FW_RI_WR_MPAREQBIT(1U) + +#define S_FW_RI_WR_P2PTYPE 0 +#define M_FW_RI_WR_P2PTYPE 0xf +#define V_FW_RI_WR_P2PTYPE(x) ((x) << S_FW_RI_WR_P2PTYPE) +#define G_FW_RI_WR_P2PTYPE(x) \ + (((x) >> S_FW_RI_WR_P2PTYPE) & M_FW_RI_WR_P2PTYPE) + +struct tcp_options { + __be16 mss; + __u8 wsf; +#if defined(__LITTLE_ENDIAN_BITFIELD) + __u8:4; + __u8 unknown:1; + __u8:1; + __u8 sack:1; + __u8 tstamp:1; +#else + __u8 tstamp:1; + __u8 sack:1; + __u8:1; + __u8 unknown:1; + __u8:4; +#endif +}; + +struct cpl_pass_accept_req { + union opcode_tid ot; + __be16 rsvd; + __be16 len; + __be32 hdr_len; + __be16 vlan; + __be16 l2info; + __be32 tos_stid; + struct tcp_options tcpopt; +}; + +/* cpl_pass_accept_req.hdr_len fields */ +#define S_SYN_RX_CHAN 0 +#define M_SYN_RX_CHAN 0xF +#define V_SYN_RX_CHAN(x) ((x) << S_SYN_RX_CHAN) +#define G_SYN_RX_CHAN(x) (((x) >> S_SYN_RX_CHAN) & M_SYN_RX_CHAN) + +#define S_TCP_HDR_LEN 10 +#define M_TCP_HDR_LEN 0x3F +#define V_TCP_HDR_LEN(x) ((x) << S_TCP_HDR_LEN) +#define G_TCP_HDR_LEN(x) (((x) >> S_TCP_HDR_LEN) & M_TCP_HDR_LEN) + +#define S_IP_HDR_LEN 16 +#define M_IP_HDR_LEN 0x3FF +#define V_IP_HDR_LEN(x) ((x) << S_IP_HDR_LEN) +#define G_IP_HDR_LEN(x) (((x) >> S_IP_HDR_LEN) & M_IP_HDR_LEN) + +#define S_ETH_HDR_LEN 26 +#define M_ETH_HDR_LEN 0x1F +#define V_ETH_HDR_LEN(x) ((x) << S_ETH_HDR_LEN) +#define G_ETH_HDR_LEN(x) (((x) >> S_ETH_HDR_LEN) & M_ETH_HDR_LEN) + +/* cpl_pass_accept_req.l2info fields */ +#define S_SYN_MAC_IDX 0 +#define M_SYN_MAC_IDX 0x1FF +#define V_SYN_MAC_IDX(x) ((x) << S_SYN_MAC_IDX) +#define G_SYN_MAC_IDX(x) (((x) >> S_SYN_MAC_IDX) & M_SYN_MAC_IDX) + +#define S_SYN_XACT_MATCH 9 +#define V_SYN_XACT_MATCH(x) ((x) << S_SYN_XACT_MATCH) +#define F_SYN_XACT_MATCH V_SYN_XACT_MATCH(1U) + +#define S_SYN_INTF 12 +#define M_SYN_INTF 0xF +#define V_SYN_INTF(x) ((x) << S_SYN_INTF) +#define G_SYN_INTF(x) (((x) >> S_SYN_INTF) & M_SYN_INTF) + +struct ulptx_idata { + __be32 cmd_more; + __be32 len; +}; + +#define S_ULPTX_NSGE 0 +#define M_ULPTX_NSGE 0xFFFF +#define V_ULPTX_NSGE(x) ((x) << S_ULPTX_NSGE) +#endif /* _T4FW_RI_API_H_ */ diff --git a/drivers/infiniband/hw/cxgb4/user.h b/drivers/infiniband/hw/cxgb4/user.h new file mode 100644 index 000000000000..ed6414abde02 --- /dev/null +++ b/drivers/infiniband/hw/cxgb4/user.h @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#ifndef __C4IW_USER_H__ +#define __C4IW_USER_H__ + +#define C4IW_UVERBS_ABI_VERSION 1 + +/* + * Make sure that all structs defined in this file remain laid out so + * that they pack the same way on 32-bit and 64-bit architectures (to + * avoid incompatibility between 32-bit userspace and 64-bit kernels). + * In particular do not use pointer types -- pass pointers in __u64 + * instead. + */ +struct c4iw_create_cq_resp { + __u64 key; + __u64 gts_key; + __u64 memsize; + __u32 cqid; + __u32 size; + __u32 qid_mask; +}; + +struct c4iw_create_qp_resp { + __u64 sq_key; + __u64 rq_key; + __u64 sq_db_gts_key; + __u64 rq_db_gts_key; + __u64 sq_memsize; + __u64 rq_memsize; + __u32 sqid; + __u32 rqid; + __u32 sq_size; + __u32 rq_size; + __u32 qid_mask; +}; +#endif diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index 37d12e5efa49..1d7aea132a09 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -1474,7 +1474,7 @@ static void ipath_ht_quiet_serdes(struct ipath_devdata *dd) /** * ipath_pe_put_tid - write a TID in chip * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c index fbf8c5379ea8..4b4a30b0dabd 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6120.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -1328,7 +1328,7 @@ bail: /** * ipath_pe_put_tid - write a TID in chip * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * @@ -1394,7 +1394,7 @@ static void ipath_pe_put_tid(struct ipath_devdata *dd, u64 __iomem *tidptr, /** * ipath_pe_put_tid_2 - write a TID in chip, Revision 2 or higher * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c index a805402dd4ae..34b778ed97fc 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba7220.c +++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c @@ -1738,7 +1738,7 @@ bail: /** * ipath_7220_put_tid - write a TID to the chip * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: 0 for eager, 1 for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index cc2ddd29ac57..5a219a2fdf16 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -661,6 +661,14 @@ repoll: wc->opcode = IB_WC_FETCH_ADD; wc->byte_len = 8; break; + case MLX4_OPCODE_MASKED_ATOMIC_CS: + wc->opcode = IB_WC_MASKED_COMP_SWAP; + wc->byte_len = 8; + break; + case MLX4_OPCODE_MASKED_ATOMIC_FA: + wc->opcode = IB_WC_MASKED_FETCH_ADD; + wc->byte_len = 8; + break; case MLX4_OPCODE_BIND_MW: wc->opcode = IB_WC_BIND_MW; break; diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 01f2a3f93355..39051417054c 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -139,6 +139,7 @@ static int mlx4_ib_query_device(struct ib_device *ibdev, props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? IB_ATOMIC_HCA : IB_ATOMIC_NONE; + props->masked_atomic_cap = IB_ATOMIC_HCA; props->max_pkeys = dev->dev->caps.pkey_table_len[1]; props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 5643f4a8ffef..6a60827b2301 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -74,17 +74,19 @@ enum { }; static const __be32 mlx4_ib_opcode[] = { - [IB_WR_SEND] = cpu_to_be32(MLX4_OPCODE_SEND), - [IB_WR_LSO] = cpu_to_be32(MLX4_OPCODE_LSO), - [IB_WR_SEND_WITH_IMM] = cpu_to_be32(MLX4_OPCODE_SEND_IMM), - [IB_WR_RDMA_WRITE] = cpu_to_be32(MLX4_OPCODE_RDMA_WRITE), - [IB_WR_RDMA_WRITE_WITH_IMM] = cpu_to_be32(MLX4_OPCODE_RDMA_WRITE_IMM), - [IB_WR_RDMA_READ] = cpu_to_be32(MLX4_OPCODE_RDMA_READ), - [IB_WR_ATOMIC_CMP_AND_SWP] = cpu_to_be32(MLX4_OPCODE_ATOMIC_CS), - [IB_WR_ATOMIC_FETCH_AND_ADD] = cpu_to_be32(MLX4_OPCODE_ATOMIC_FA), - [IB_WR_SEND_WITH_INV] = cpu_to_be32(MLX4_OPCODE_SEND_INVAL), - [IB_WR_LOCAL_INV] = cpu_to_be32(MLX4_OPCODE_LOCAL_INVAL), - [IB_WR_FAST_REG_MR] = cpu_to_be32(MLX4_OPCODE_FMR), + [IB_WR_SEND] = cpu_to_be32(MLX4_OPCODE_SEND), + [IB_WR_LSO] = cpu_to_be32(MLX4_OPCODE_LSO), + [IB_WR_SEND_WITH_IMM] = cpu_to_be32(MLX4_OPCODE_SEND_IMM), + [IB_WR_RDMA_WRITE] = cpu_to_be32(MLX4_OPCODE_RDMA_WRITE), + [IB_WR_RDMA_WRITE_WITH_IMM] = cpu_to_be32(MLX4_OPCODE_RDMA_WRITE_IMM), + [IB_WR_RDMA_READ] = cpu_to_be32(MLX4_OPCODE_RDMA_READ), + [IB_WR_ATOMIC_CMP_AND_SWP] = cpu_to_be32(MLX4_OPCODE_ATOMIC_CS), + [IB_WR_ATOMIC_FETCH_AND_ADD] = cpu_to_be32(MLX4_OPCODE_ATOMIC_FA), + [IB_WR_SEND_WITH_INV] = cpu_to_be32(MLX4_OPCODE_SEND_INVAL), + [IB_WR_LOCAL_INV] = cpu_to_be32(MLX4_OPCODE_LOCAL_INVAL), + [IB_WR_FAST_REG_MR] = cpu_to_be32(MLX4_OPCODE_FMR), + [IB_WR_MASKED_ATOMIC_CMP_AND_SWP] = cpu_to_be32(MLX4_OPCODE_MASKED_ATOMIC_CS), + [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD] = cpu_to_be32(MLX4_OPCODE_MASKED_ATOMIC_FA), }; static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp) @@ -1407,6 +1409,9 @@ static void set_atomic_seg(struct mlx4_wqe_atomic_seg *aseg, struct ib_send_wr * if (wr->opcode == IB_WR_ATOMIC_CMP_AND_SWP) { aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); + } else if (wr->opcode == IB_WR_MASKED_ATOMIC_FETCH_AND_ADD) { + aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); + aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add_mask); } else { aseg->swap_add = cpu_to_be64(wr->wr.atomic.compare_add); aseg->compare = 0; @@ -1414,6 +1419,15 @@ static void set_atomic_seg(struct mlx4_wqe_atomic_seg *aseg, struct ib_send_wr * } +static void set_masked_atomic_seg(struct mlx4_wqe_masked_atomic_seg *aseg, + struct ib_send_wr *wr) +{ + aseg->swap_add = cpu_to_be64(wr->wr.atomic.swap); + aseg->swap_add_mask = cpu_to_be64(wr->wr.atomic.swap_mask); + aseg->compare = cpu_to_be64(wr->wr.atomic.compare_add); + aseg->compare_mask = cpu_to_be64(wr->wr.atomic.compare_add_mask); +} + static void set_datagram_seg(struct mlx4_wqe_datagram_seg *dseg, struct ib_send_wr *wr) { @@ -1567,6 +1581,7 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, switch (wr->opcode) { case IB_WR_ATOMIC_CMP_AND_SWP: case IB_WR_ATOMIC_FETCH_AND_ADD: + case IB_WR_MASKED_ATOMIC_FETCH_AND_ADD: set_raddr_seg(wqe, wr->wr.atomic.remote_addr, wr->wr.atomic.rkey); wqe += sizeof (struct mlx4_wqe_raddr_seg); @@ -1579,6 +1594,19 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, break; + case IB_WR_MASKED_ATOMIC_CMP_AND_SWP: + set_raddr_seg(wqe, wr->wr.atomic.remote_addr, + wr->wr.atomic.rkey); + wqe += sizeof (struct mlx4_wqe_raddr_seg); + + set_masked_atomic_seg(wqe, wr); + wqe += sizeof (struct mlx4_wqe_masked_atomic_seg); + + size += (sizeof (struct mlx4_wqe_raddr_seg) + + sizeof (struct mlx4_wqe_masked_atomic_seg)) / 16; + + break; + case IB_WR_RDMA_READ: case IB_WR_RDMA_WRITE: case IB_WR_RDMA_WRITE_WITH_IMM: diff --git a/drivers/infiniband/hw/mthca/mthca_allocator.c b/drivers/infiniband/hw/mthca/mthca_allocator.c index c5ccc2daab60..b4e0cf4e95cd 100644 --- a/drivers/infiniband/hw/mthca/mthca_allocator.c +++ b/drivers/infiniband/hw/mthca/mthca_allocator.c @@ -211,7 +211,7 @@ int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct, if (!buf->direct.buf) return -ENOMEM; - pci_unmap_addr_set(&buf->direct, mapping, t); + dma_unmap_addr_set(&buf->direct, mapping, t); memset(buf->direct.buf, 0, size); @@ -251,7 +251,7 @@ int mthca_buf_alloc(struct mthca_dev *dev, int size, int max_direct, goto err_free; dma_list[i] = t; - pci_unmap_addr_set(&buf->page_list[i], mapping, t); + dma_unmap_addr_set(&buf->page_list[i], mapping, t); clear_page(buf->page_list[i].buf); } @@ -289,12 +289,12 @@ void mthca_buf_free(struct mthca_dev *dev, int size, union mthca_buf *buf, if (is_direct) dma_free_coherent(&dev->pdev->dev, size, buf->direct.buf, - pci_unmap_addr(&buf->direct, mapping)); + dma_unmap_addr(&buf->direct, mapping)); else { for (i = 0; i < (size + PAGE_SIZE - 1) / PAGE_SIZE; ++i) dma_free_coherent(&dev->pdev->dev, PAGE_SIZE, buf->page_list[i].buf, - pci_unmap_addr(&buf->page_list[i], + dma_unmap_addr(&buf->page_list[i], mapping)); kfree(buf->page_list); } diff --git a/drivers/infiniband/hw/mthca/mthca_eq.c b/drivers/infiniband/hw/mthca/mthca_eq.c index 9388164b6053..8e8c728aff88 100644 --- a/drivers/infiniband/hw/mthca/mthca_eq.c +++ b/drivers/infiniband/hw/mthca/mthca_eq.c @@ -504,7 +504,7 @@ static int mthca_create_eq(struct mthca_dev *dev, goto err_out_free_pages; dma_list[i] = t; - pci_unmap_addr_set(&eq->page_list[i], mapping, t); + dma_unmap_addr_set(&eq->page_list[i], mapping, t); clear_page(eq->page_list[i].buf); } @@ -579,7 +579,7 @@ static int mthca_create_eq(struct mthca_dev *dev, if (eq->page_list[i].buf) dma_free_coherent(&dev->pdev->dev, PAGE_SIZE, eq->page_list[i].buf, - pci_unmap_addr(&eq->page_list[i], + dma_unmap_addr(&eq->page_list[i], mapping)); mthca_free_mailbox(dev, mailbox); @@ -629,7 +629,7 @@ static void mthca_free_eq(struct mthca_dev *dev, for (i = 0; i < npages; ++i) pci_free_consistent(dev->pdev, PAGE_SIZE, eq->page_list[i].buf, - pci_unmap_addr(&eq->page_list[i], mapping)); + dma_unmap_addr(&eq->page_list[i], mapping)); kfree(eq->page_list); mthca_free_mailbox(dev, mailbox); diff --git a/drivers/infiniband/hw/mthca/mthca_provider.h b/drivers/infiniband/hw/mthca/mthca_provider.h index 90f4c4d2e983..596acc45569b 100644 --- a/drivers/infiniband/hw/mthca/mthca_provider.h +++ b/drivers/infiniband/hw/mthca/mthca_provider.h @@ -46,7 +46,7 @@ struct mthca_buf_list { void *buf; - DECLARE_PCI_UNMAP_ADDR(mapping) + DEFINE_DMA_UNMAP_ADDR(mapping); }; union mthca_buf { diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c index c36a3f514929..86acb7d57064 100644 --- a/drivers/infiniband/hw/nes/nes_hw.c +++ b/drivers/infiniband/hw/nes/nes_hw.c @@ -1297,7 +1297,7 @@ int nes_destroy_cqp(struct nes_device *nesdev) /** * nes_init_1g_phy */ -int nes_init_1g_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index) +static int nes_init_1g_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index) { u32 counter = 0; u16 phy_data; @@ -1351,7 +1351,7 @@ int nes_init_1g_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index) /** * nes_init_2025_phy */ -int nes_init_2025_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index) +static int nes_init_2025_phy(struct nes_device *nesdev, u8 phy_type, u8 phy_index) { u32 temp_phy_data = 0; u32 temp_phy_data2 = 0; @@ -2458,7 +2458,6 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number) return; } nesadapter->mac_sw_state[mac_number] = NES_MAC_SW_INTERRUPT; - spin_unlock_irqrestore(&nesadapter->phy_lock, flags); /* ack the MAC interrupt */ mac_status = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (mac_index * 0x200)); @@ -2469,11 +2468,9 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number) if (mac_status & (NES_MAC_INT_LINK_STAT_CHG | NES_MAC_INT_XGMII_EXT)) { nesdev->link_status_interrupts++; - if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS))) { - spin_lock_irqsave(&nesadapter->phy_lock, flags); + if (0 == (++nesadapter->link_interrupt_count[mac_index] % ((u16)NES_MAX_LINK_INTERRUPTS))) nes_reset_link(nesdev, mac_index); - spin_unlock_irqrestore(&nesadapter->phy_lock, flags); - } + /* read the PHY interrupt status register */ if ((nesadapter->OneG_Mode) && (nesadapter->phy_type[mac_index] != NES_PHY_TYPE_PUMA_1G)) { @@ -2587,6 +2584,7 @@ static void nes_process_mac_intr(struct nes_device *nesdev, u32 mac_number) break; } } + spin_unlock_irqrestore(&nesadapter->phy_lock, flags); if (phy_data & 0x0004) { if (wide_ppm_offset && diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c index b7c813f4be43..9f4cadf9f851 100644 --- a/drivers/infiniband/hw/nes/nes_nic.c +++ b/drivers/infiniband/hw/nes/nes_nic.c @@ -1461,11 +1461,14 @@ static int nes_netdev_get_settings(struct net_device *netdev, struct ethtool_cmd et_cmd->transceiver = XCVR_INTERNAL; et_cmd->phy_address = mac_index; } else { + unsigned long flags; et_cmd->supported = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg; et_cmd->advertising = ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg; + spin_lock_irqsave(&nesadapter->phy_lock, flags); nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data); + spin_unlock_irqrestore(&nesadapter->phy_lock, flags); if (phy_data & 0x1000) et_cmd->autoneg = AUTONEG_ENABLE; else @@ -1503,12 +1506,15 @@ static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd struct nes_vnic *nesvnic = netdev_priv(netdev); struct nes_device *nesdev = nesvnic->nesdev; struct nes_adapter *nesadapter = nesdev->nesadapter; - u16 phy_data; if ((nesadapter->OneG_Mode) && (nesadapter->phy_type[nesdev->mac_index] != NES_PHY_TYPE_PUMA_1G)) { - nes_read_1G_phy_reg(nesdev, 0, nesadapter->phy_index[nesdev->mac_index], - &phy_data); + unsigned long flags; + u16 phy_data; + u8 phy_index = nesadapter->phy_index[nesdev->mac_index]; + + spin_lock_irqsave(&nesadapter->phy_lock, flags); + nes_read_1G_phy_reg(nesdev, 0, phy_index, &phy_data); if (et_cmd->autoneg) { /* Turn on Full duplex, Autoneg, and restart autonegotiation */ phy_data |= 0x1300; @@ -1516,8 +1522,8 @@ static int nes_netdev_set_settings(struct net_device *netdev, struct ethtool_cmd /* Turn off autoneg */ phy_data &= ~0x1000; } - nes_write_1G_phy_reg(nesdev, 0, nesadapter->phy_index[nesdev->mac_index], - phy_data); + nes_write_1G_phy_reg(nesdev, 0, phy_index, phy_data); + spin_unlock_irqrestore(&nesadapter->phy_lock, flags); } return 0; diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c index 186623d86959..a9f5dd272f1a 100644 --- a/drivers/infiniband/hw/nes/nes_utils.c +++ b/drivers/infiniband/hw/nes/nes_utils.c @@ -381,12 +381,8 @@ static u16 nes_read16_eeprom(void __iomem *addr, u16 offset) */ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 data) { - struct nes_adapter *nesadapter = nesdev->nesadapter; u32 u32temp; u32 counter; - unsigned long flags; - - spin_lock_irqsave(&nesadapter->phy_lock, flags); nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL, 0x50020000 | data | ((u32)phy_reg << 18) | ((u32)phy_addr << 23)); @@ -402,8 +398,6 @@ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u1 if (!(u32temp & 1)) nes_debug(NES_DBG_PHY, "Phy is not responding. interrupt status = 0x%X.\n", u32temp); - - spin_unlock_irqrestore(&nesadapter->phy_lock, flags); } @@ -414,14 +408,11 @@ void nes_write_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u1 */ void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 *data) { - struct nes_adapter *nesadapter = nesdev->nesadapter; u32 u32temp; u32 counter; - unsigned long flags; /* nes_debug(NES_DBG_PHY, "phy addr = %d, mac_index = %d\n", phy_addr, nesdev->mac_index); */ - spin_lock_irqsave(&nesadapter->phy_lock, flags); nes_write_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL, 0x60020000 | ((u32)phy_reg << 18) | ((u32)phy_addr << 23)); @@ -441,7 +432,6 @@ void nes_read_1G_phy_reg(struct nes_device *nesdev, u8 phy_reg, u8 phy_addr, u16 } else { *data = (u16)nes_read_indexed(nesdev, NES_IDX_MAC_MDIO_CONTROL); } - spin_unlock_irqrestore(&nesadapter->phy_lock, flags); } diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index e54f312e4bdc..925e1f2d1d55 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -374,7 +374,7 @@ static int alloc_fast_reg_mr(struct nes_device *nesdev, struct nes_pd *nespd, /* * nes_alloc_fast_reg_mr */ -struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list_len) +static struct ib_mr *nes_alloc_fast_reg_mr(struct ib_pd *ibpd, int max_page_list_len) { struct nes_pd *nespd = to_nespd(ibpd); struct nes_vnic *nesvnic = to_nesvnic(ibpd->device); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c index d10b4ec68d28..40e858492f90 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_ethtool.c @@ -49,6 +49,25 @@ static u32 ipoib_get_rx_csum(struct net_device *dev) !test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags); } +static int ipoib_set_tso(struct net_device *dev, u32 data) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + + if (data) { + if (!test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags) && + (dev->features & NETIF_F_SG) && + (priv->hca_caps & IB_DEVICE_UD_TSO)) { + dev->features |= NETIF_F_TSO; + } else { + ipoib_warn(priv, "can't set TSO on\n"); + return -EOPNOTSUPP; + } + } else + dev->features &= ~NETIF_F_TSO; + + return 0; +} + static int ipoib_get_coalesce(struct net_device *dev, struct ethtool_coalesce *coal) { @@ -131,6 +150,7 @@ static void ipoib_get_ethtool_stats(struct net_device *dev, static const struct ethtool_ops ipoib_ethtool_ops = { .get_drvinfo = ipoib_get_drvinfo, .get_rx_csum = ipoib_get_rx_csum, + .set_tso = ipoib_set_tso, .get_coalesce = ipoib_get_coalesce, .set_coalesce = ipoib_set_coalesce, .get_flags = ethtool_op_get_flags, diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 93399dff0c6f..7b2fc98e2f2b 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -325,7 +325,7 @@ iscsi_iser_conn_destroy(struct iscsi_cls_conn *cls_conn) */ if (ib_conn) { ib_conn->iser_conn = NULL; - iser_conn_put(ib_conn); + iser_conn_put(ib_conn, 1); /* deref iscsi/ib conn unbinding */ } } @@ -357,11 +357,12 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session, /* binds the iSER connection retrieved from the previously * connected ep_handle to the iSCSI layer connection. exchanges * connection pointers */ - iser_err("binding iscsi conn %p to iser_conn %p\n",conn,ib_conn); + iser_err("binding iscsi/iser conn %p %p to ib_conn %p\n", + conn, conn->dd_data, ib_conn); iser_conn = conn->dd_data; ib_conn->iser_conn = iser_conn; iser_conn->ib_conn = ib_conn; - iser_conn_get(ib_conn); + iser_conn_get(ib_conn); /* ref iscsi/ib conn binding */ return 0; } @@ -382,7 +383,7 @@ iscsi_iser_conn_stop(struct iscsi_cls_conn *cls_conn, int flag) * There is no unbind event so the stop callback * must release the ref from the bind. */ - iser_conn_put(ib_conn); + iser_conn_put(ib_conn, 1); /* deref iscsi/ib conn unbinding */ } iser_conn->ib_conn = NULL; } diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.h b/drivers/infiniband/ulp/iser/iscsi_iser.h index 036934cdcb92..f1df01567bb6 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.h +++ b/drivers/infiniband/ulp/iser/iscsi_iser.h @@ -232,6 +232,7 @@ struct iser_device { struct ib_cq *tx_cq; struct ib_mr *mr; struct tasklet_struct cq_tasklet; + struct ib_event_handler event_handler; struct list_head ig_list; /* entry in ig devices list */ int refcount; }; @@ -246,7 +247,6 @@ struct iser_conn { struct rdma_cm_id *cma_id; /* CMA ID */ struct ib_qp *qp; /* QP */ struct ib_fmr_pool *fmr_pool; /* pool of IB FMRs */ - int disc_evt_flag; /* disconn event delivered */ wait_queue_head_t wait; /* waitq for conn/disconn */ int post_recv_buf_count; /* posted rx count */ atomic_t post_send_buf_count; /* posted tx count */ @@ -320,7 +320,7 @@ void iser_conn_init(struct iser_conn *ib_conn); void iser_conn_get(struct iser_conn *ib_conn); -void iser_conn_put(struct iser_conn *ib_conn); +int iser_conn_put(struct iser_conn *ib_conn, int destroy_cma_id_allowed); void iser_conn_terminate(struct iser_conn *ib_conn); diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c index b89d76b39a13..9876865732f7 100644 --- a/drivers/infiniband/ulp/iser/iser_verbs.c +++ b/drivers/infiniband/ulp/iser/iser_verbs.c @@ -54,6 +54,13 @@ static void iser_qp_event_callback(struct ib_event *cause, void *context) iser_err("got qp event %d\n",cause->event); } +static void iser_event_handler(struct ib_event_handler *handler, + struct ib_event *event) +{ + iser_err("async event %d on device %s port %d\n", event->event, + event->device->name, event->element.port_num); +} + /** * iser_create_device_ib_res - creates Protection Domain (PD), Completion * Queue (CQ), DMA Memory Region (DMA MR) with the device associated with @@ -96,8 +103,15 @@ static int iser_create_device_ib_res(struct iser_device *device) if (IS_ERR(device->mr)) goto dma_mr_err; + INIT_IB_EVENT_HANDLER(&device->event_handler, device->ib_device, + iser_event_handler); + if (ib_register_event_handler(&device->event_handler)) + goto handler_err; + return 0; +handler_err: + ib_dereg_mr(device->mr); dma_mr_err: tasklet_kill(&device->cq_tasklet); cq_arm_err: @@ -120,7 +134,7 @@ static void iser_free_device_ib_res(struct iser_device *device) BUG_ON(device->mr == NULL); tasklet_kill(&device->cq_tasklet); - + (void)ib_unregister_event_handler(&device->event_handler); (void)ib_dereg_mr(device->mr); (void)ib_destroy_cq(device->tx_cq); (void)ib_destroy_cq(device->rx_cq); @@ -149,10 +163,8 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) device = ib_conn->device; ib_conn->login_buf = kmalloc(ISER_RX_LOGIN_SIZE, GFP_KERNEL); - if (!ib_conn->login_buf) { - goto alloc_err; - ret = -ENOMEM; - } + if (!ib_conn->login_buf) + goto out_err; ib_conn->login_dma = ib_dma_map_single(ib_conn->device->ib_device, (void *)ib_conn->login_buf, ISER_RX_LOGIN_SIZE, @@ -161,10 +173,9 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) ib_conn->page_vec = kmalloc(sizeof(struct iser_page_vec) + (sizeof(u64) * (ISCSI_ISER_SG_TABLESIZE +1)), GFP_KERNEL); - if (!ib_conn->page_vec) { - ret = -ENOMEM; - goto alloc_err; - } + if (!ib_conn->page_vec) + goto out_err; + ib_conn->page_vec->pages = (u64 *) (ib_conn->page_vec + 1); params.page_shift = SHIFT_4K; @@ -184,7 +195,8 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) ib_conn->fmr_pool = ib_create_fmr_pool(device->pd, ¶ms); if (IS_ERR(ib_conn->fmr_pool)) { ret = PTR_ERR(ib_conn->fmr_pool); - goto fmr_pool_err; + ib_conn->fmr_pool = NULL; + goto out_err; } memset(&init_attr, 0, sizeof init_attr); @@ -202,7 +214,7 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) ret = rdma_create_qp(ib_conn->cma_id, device->pd, &init_attr); if (ret) - goto qp_err; + goto out_err; ib_conn->qp = ib_conn->cma_id->qp; iser_err("setting conn %p cma_id %p: fmr_pool %p qp %p\n", @@ -210,12 +222,7 @@ static int iser_create_ib_conn_res(struct iser_conn *ib_conn) ib_conn->fmr_pool, ib_conn->cma_id->qp); return ret; -qp_err: - (void)ib_destroy_fmr_pool(ib_conn->fmr_pool); -fmr_pool_err: - kfree(ib_conn->page_vec); - kfree(ib_conn->login_buf); -alloc_err: +out_err: iser_err("unable to alloc mem or create resource, err %d\n", ret); return ret; } @@ -224,7 +231,7 @@ alloc_err: * releases the FMR pool, QP and CMA ID objects, returns 0 on success, * -1 on failure */ -static int iser_free_ib_conn_res(struct iser_conn *ib_conn) +static int iser_free_ib_conn_res(struct iser_conn *ib_conn, int can_destroy_id) { BUG_ON(ib_conn == NULL); @@ -239,7 +246,8 @@ static int iser_free_ib_conn_res(struct iser_conn *ib_conn) if (ib_conn->qp != NULL) rdma_destroy_qp(ib_conn->cma_id); - if (ib_conn->cma_id != NULL) + /* if cma handler context, the caller acts s.t the cma destroy the id */ + if (ib_conn->cma_id != NULL && can_destroy_id) rdma_destroy_id(ib_conn->cma_id); ib_conn->fmr_pool = NULL; @@ -317,7 +325,7 @@ static int iser_conn_state_comp_exch(struct iser_conn *ib_conn, /** * Frees all conn objects and deallocs conn descriptor */ -static void iser_conn_release(struct iser_conn *ib_conn) +static void iser_conn_release(struct iser_conn *ib_conn, int can_destroy_id) { struct iser_device *device = ib_conn->device; @@ -327,13 +335,11 @@ static void iser_conn_release(struct iser_conn *ib_conn) list_del(&ib_conn->conn_list); mutex_unlock(&ig.connlist_mutex); iser_free_rx_descriptors(ib_conn); - iser_free_ib_conn_res(ib_conn); + iser_free_ib_conn_res(ib_conn, can_destroy_id); ib_conn->device = NULL; /* on EVENT_ADDR_ERROR there's no device yet for this conn */ if (device != NULL) iser_device_try_release(device); - if (ib_conn->iser_conn) - ib_conn->iser_conn->ib_conn = NULL; iscsi_destroy_endpoint(ib_conn->ep); } @@ -342,10 +348,13 @@ void iser_conn_get(struct iser_conn *ib_conn) atomic_inc(&ib_conn->refcount); } -void iser_conn_put(struct iser_conn *ib_conn) +int iser_conn_put(struct iser_conn *ib_conn, int can_destroy_id) { - if (atomic_dec_and_test(&ib_conn->refcount)) - iser_conn_release(ib_conn); + if (atomic_dec_and_test(&ib_conn->refcount)) { + iser_conn_release(ib_conn, can_destroy_id); + return 1; + } + return 0; } /** @@ -369,19 +378,20 @@ void iser_conn_terminate(struct iser_conn *ib_conn) wait_event_interruptible(ib_conn->wait, ib_conn->state == ISER_CONN_DOWN); - iser_conn_put(ib_conn); + iser_conn_put(ib_conn, 1); /* deref ib conn deallocate */ } -static void iser_connect_error(struct rdma_cm_id *cma_id) +static int iser_connect_error(struct rdma_cm_id *cma_id) { struct iser_conn *ib_conn; ib_conn = (struct iser_conn *)cma_id->context; ib_conn->state = ISER_CONN_DOWN; wake_up_interruptible(&ib_conn->wait); + return iser_conn_put(ib_conn, 0); /* deref ib conn's cma id */ } -static void iser_addr_handler(struct rdma_cm_id *cma_id) +static int iser_addr_handler(struct rdma_cm_id *cma_id) { struct iser_device *device; struct iser_conn *ib_conn; @@ -390,8 +400,7 @@ static void iser_addr_handler(struct rdma_cm_id *cma_id) device = iser_device_find_by_ib_device(cma_id); if (!device) { iser_err("device lookup/creation failed\n"); - iser_connect_error(cma_id); - return; + return iser_connect_error(cma_id); } ib_conn = (struct iser_conn *)cma_id->context; @@ -400,11 +409,13 @@ static void iser_addr_handler(struct rdma_cm_id *cma_id) ret = rdma_resolve_route(cma_id, 1000); if (ret) { iser_err("resolve route failed: %d\n", ret); - iser_connect_error(cma_id); + return iser_connect_error(cma_id); } + + return 0; } -static void iser_route_handler(struct rdma_cm_id *cma_id) +static int iser_route_handler(struct rdma_cm_id *cma_id) { struct rdma_conn_param conn_param; int ret; @@ -425,9 +436,9 @@ static void iser_route_handler(struct rdma_cm_id *cma_id) goto failure; } - return; + return 0; failure: - iser_connect_error(cma_id); + return iser_connect_error(cma_id); } static void iser_connected_handler(struct rdma_cm_id *cma_id) @@ -439,12 +450,12 @@ static void iser_connected_handler(struct rdma_cm_id *cma_id) wake_up_interruptible(&ib_conn->wait); } -static void iser_disconnected_handler(struct rdma_cm_id *cma_id) +static int iser_disconnected_handler(struct rdma_cm_id *cma_id) { struct iser_conn *ib_conn; + int ret; ib_conn = (struct iser_conn *)cma_id->context; - ib_conn->disc_evt_flag = 1; /* getting here when the state is UP means that the conn is being * * terminated asynchronously from the iSCSI layer's perspective. */ @@ -459,20 +470,24 @@ static void iser_disconnected_handler(struct rdma_cm_id *cma_id) ib_conn->state = ISER_CONN_DOWN; wake_up_interruptible(&ib_conn->wait); } + + ret = iser_conn_put(ib_conn, 0); /* deref ib conn's cma id */ + return ret; } static int iser_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *event) { int ret = 0; - iser_err("event %d conn %p id %p\n",event->event,cma_id->context,cma_id); + iser_err("event %d status %d conn %p id %p\n", + event->event, event->status, cma_id->context, cma_id); switch (event->event) { case RDMA_CM_EVENT_ADDR_RESOLVED: - iser_addr_handler(cma_id); + ret = iser_addr_handler(cma_id); break; case RDMA_CM_EVENT_ROUTE_RESOLVED: - iser_route_handler(cma_id); + ret = iser_route_handler(cma_id); break; case RDMA_CM_EVENT_ESTABLISHED: iser_connected_handler(cma_id); @@ -482,13 +497,12 @@ static int iser_cma_handler(struct rdma_cm_id *cma_id, struct rdma_cm_event *eve case RDMA_CM_EVENT_CONNECT_ERROR: case RDMA_CM_EVENT_UNREACHABLE: case RDMA_CM_EVENT_REJECTED: - iser_err("event: %d, error: %d\n", event->event, event->status); - iser_connect_error(cma_id); + ret = iser_connect_error(cma_id); break; case RDMA_CM_EVENT_DISCONNECTED: case RDMA_CM_EVENT_DEVICE_REMOVAL: case RDMA_CM_EVENT_ADDR_CHANGE: - iser_disconnected_handler(cma_id); + ret = iser_disconnected_handler(cma_id); break; default: iser_err("Unexpected RDMA CM event (%d)\n", event->event); @@ -503,7 +517,7 @@ void iser_conn_init(struct iser_conn *ib_conn) init_waitqueue_head(&ib_conn->wait); ib_conn->post_recv_buf_count = 0; atomic_set(&ib_conn->post_send_buf_count, 0); - atomic_set(&ib_conn->refcount, 1); + atomic_set(&ib_conn->refcount, 1); /* ref ib conn allocation */ INIT_LIST_HEAD(&ib_conn->conn_list); spin_lock_init(&ib_conn->lock); } @@ -531,6 +545,7 @@ int iser_connect(struct iser_conn *ib_conn, ib_conn->state = ISER_CONN_PENDING; + iser_conn_get(ib_conn); /* ref ib conn's cma id */ ib_conn->cma_id = rdma_create_id(iser_cma_handler, (void *)ib_conn, RDMA_PS_TCP); @@ -568,7 +583,7 @@ id_failure: addr_failure: ib_conn->state = ISER_CONN_DOWN; connect_failure: - iser_conn_release(ib_conn); + iser_conn_release(ib_conn, 1); return err; } @@ -737,12 +752,10 @@ static void iser_handle_comp_error(struct iser_tx_desc *desc, iscsi_conn_failure(ib_conn->iser_conn->iscsi_conn, ISCSI_ERR_CONN_FAILED); - /* complete the termination process if disconnect event was delivered * - * note there are no more non completed posts to the QP */ - if (ib_conn->disc_evt_flag) { - ib_conn->state = ISER_CONN_DOWN; - wake_up_interruptible(&ib_conn->wait); - } + /* no more non completed posts to the QP, complete the + * termination process w.o worrying on disconnect event */ + ib_conn->state = ISER_CONN_DOWN; + wake_up_interruptible(&ib_conn->wait); } } diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c index 7e18bcf05a66..46239e47a260 100644 --- a/drivers/input/gameport/gameport.c +++ b/drivers/input/gameport/gameport.c @@ -59,11 +59,11 @@ static unsigned int get_time_pit(void) unsigned long flags; unsigned int count; - spin_lock_irqsave(&i8253_lock, flags); + raw_spin_lock_irqsave(&i8253_lock, flags); outb_p(0x00, 0x43); count = inb_p(0x40); count |= inb_p(0x40) << 8; - spin_unlock_irqrestore(&i8253_lock, flags); + raw_spin_unlock_irqrestore(&i8253_lock, flags); return count; } diff --git a/drivers/input/joystick/analog.c b/drivers/input/joystick/analog.c index 1c0b529c06aa..4afe0a3b4884 100644 --- a/drivers/input/joystick/analog.c +++ b/drivers/input/joystick/analog.c @@ -146,11 +146,11 @@ static unsigned int get_time_pit(void) unsigned long flags; unsigned int count; - spin_lock_irqsave(&i8253_lock, flags); + raw_spin_lock_irqsave(&i8253_lock, flags); outb_p(0x00, 0x43); count = inb_p(0x40); count |= inb_p(0x40) << 8; - spin_unlock_irqrestore(&i8253_lock, flags); + raw_spin_unlock_irqrestore(&i8253_lock, flags); return count; } diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 64c102355f53..a8293388d019 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -143,19 +143,6 @@ config KEYBOARD_BFIN To compile this driver as a module, choose M here: the module will be called bf54x-keys. -config KEYBOARD_CORGI - tristate "Corgi keyboard (deprecated)" - depends on PXA_SHARPSL - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C7xx - series of PDAs. - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called corgikbd. - config KEYBOARD_LKKBD tristate "DECstation/VAXstation LK201/LK401 keyboard" select SERIO @@ -339,19 +326,6 @@ config KEYBOARD_PXA930_ROTARY To compile this driver as a module, choose M here: the module will be called pxa930_rotary. -config KEYBOARD_SPITZ - tristate "Spitz keyboard (deprecated)" - depends on PXA_SHARPSL - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000, - SL-C3000 and Sl-C3100 series of PDAs. - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called spitzkbd. - config KEYBOARD_STOWAWAY tristate "Stowaway keyboard" select SERIO @@ -414,28 +388,6 @@ config KEYBOARD_TWL4030 To compile this driver as a module, choose M here: the module will be called twl4030_keypad. -config KEYBOARD_TOSA - tristate "Tosa keyboard (deprecated)" - depends on MACH_TOSA - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa) - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called tosakbd. - -config KEYBOARD_TOSA_USE_EXT_KEYCODES - bool "Tosa keyboard: use extended keycodes" - depends on KEYBOARD_TOSA - help - Say Y here to enable the tosa keyboard driver to generate extended - (>= 127) keycodes. Be aware, that they can't be correctly interpreted - by either console keyboard driver or by Kdrive keybd driver. - - Say Y only if you know, what you are doing! - config KEYBOARD_XTKBD tristate "XT keyboard" select SERIO diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 706c6b5ed5f4..9a74127e4d17 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -11,7 +11,6 @@ obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o -obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o @@ -33,10 +32,8 @@ obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o -obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o -obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o diff --git a/drivers/input/keyboard/corgikbd.c b/drivers/input/keyboard/corgikbd.c deleted file mode 100644 index 634af6a8e6b3..000000000000 --- a/drivers/input/keyboard/corgikbd.c +++ /dev/null @@ -1,414 +0,0 @@ -/* - * Keyboard driver for Sharp Corgi models (SL-C7xx) - * - * Copyright (c) 2004-2005 Richard Purdie - * - * Based on xtkbd.c/locomkbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/init.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/jiffies.h> -#include <linux/module.h> -#include <linux/slab.h> - -#include <mach/corgi.h> -#include <mach/pxa2xx-gpio.h> -#include <asm/hardware/scoop.h> - -#define KB_ROWS 8 -#define KB_COLS 12 -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r,c) ( ((r)<<4) + (c) + 1 ) -/* zero code, 124 scancodes */ -#define NR_SCANCODES ( SCANCODE(KB_ROWS-1,KB_COLS-1) +1 +1 ) - -#define SCAN_INTERVAL (50) /* ms */ -#define HINGE_SCAN_INTERVAL (250) /* ms */ - -#define CORGI_KEY_CALENDER KEY_F1 -#define CORGI_KEY_ADDRESS KEY_F2 -#define CORGI_KEY_FN KEY_F3 -#define CORGI_KEY_CANCEL KEY_F4 -#define CORGI_KEY_OFF KEY_SUSPEND -#define CORGI_KEY_EXOK KEY_F5 -#define CORGI_KEY_EXCANCEL KEY_F6 -#define CORGI_KEY_EXJOGDOWN KEY_F7 -#define CORGI_KEY_EXJOGUP KEY_F8 -#define CORGI_KEY_JAP1 KEY_LEFTCTRL -#define CORGI_KEY_JAP2 KEY_LEFTALT -#define CORGI_KEY_MAIL KEY_F10 -#define CORGI_KEY_OK KEY_F11 -#define CORGI_KEY_MENU KEY_F12 - -static unsigned char corgikbd_keycode[NR_SCANCODES] = { - 0, /* 0 */ - 0, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, 0, 0, 0, 0, 0, 0, 0, /* 1-16 */ - 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, 0, 0, 0, 0, 0, 0, 0, /* 17-32 */ - KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */ - CORGI_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */ - CORGI_KEY_ADDRESS, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, 0, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, /* 65-80 */ - CORGI_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, 0, CORGI_KEY_FN, 0, 0, 0, 0, /* 81-96 */ - KEY_SYSRQ, CORGI_KEY_JAP1, CORGI_KEY_JAP2, CORGI_KEY_CANCEL, CORGI_KEY_OK, CORGI_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0, /* 97-112 */ - CORGI_KEY_OFF, CORGI_KEY_EXOK, CORGI_KEY_EXCANCEL, CORGI_KEY_EXJOGDOWN, CORGI_KEY_EXJOGUP, 0, 0, 0, 0, 0, 0, 0, /* 113-124 */ -}; - - -struct corgikbd { - unsigned char keycode[ARRAY_SIZE(corgikbd_keycode)]; - struct input_dev *input; - - spinlock_t lock; - struct timer_list timer; - struct timer_list htimer; - - unsigned int suspended; - unsigned long suspend_jiffies; -}; - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 12 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -static inline void corgikbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR2 = CORGI_GPIO_ALL_STROBE_BIT; - GPDR2 &= ~CORGI_GPIO_ALL_STROBE_BIT; -} - -static inline void corgikbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR2 = CORGI_GPIO_ALL_STROBE_BIT; - GPDR2 |= CORGI_GPIO_ALL_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* Clear any interrupts we may have triggered when altering the GPIO lines */ - GEDR1 = CORGI_GPIO_HIGH_SENSE_BIT; - GEDR2 = CORGI_GPIO_LOW_SENSE_BIT; -} - -static inline void corgikbd_activate_col(int col) -{ - /* STROBE col -> High, not col -> HiZ */ - GPSR2 = CORGI_GPIO_STROBE_BIT(col); - GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col); -} - -static inline void corgikbd_reset_col(int col) -{ - /* STROBE col -> Low */ - GPCR2 = CORGI_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col); -} - -#define GET_ROWS_STATUS(c) (((GPLR1 & CORGI_GPIO_HIGH_SENSE_BIT) >> CORGI_GPIO_HIGH_SENSE_RSHIFT) | ((GPLR2 & CORGI_GPIO_LOW_SENSE_BIT) << CORGI_GPIO_LOW_SENSE_LSHIFT)) - -/* - * The corgi keyboard only generates interrupts when a key is pressed. - * When a key is pressed, we enable a timer which then scans the - * keyboard to detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data) -{ - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed; - - if (corgikbd_data->suspended) - return; - - spin_lock_irqsave(&corgikbd_data->lock, flags); - - num_pressed = 0; - for (col = 0; col < KB_COLS; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - - corgikbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - corgikbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = GET_ROWS_STATUS(col); - for (row = 0; row < KB_ROWS; row++) { - unsigned int scancode, pressed; - - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - input_report_key(corgikbd_data->input, corgikbd_data->keycode[scancode], pressed); - - if (pressed) - num_pressed++; - - if (pressed && (corgikbd_data->keycode[scancode] == CORGI_KEY_OFF) - && time_after(jiffies, corgikbd_data->suspend_jiffies + HZ)) { - input_event(corgikbd_data->input, EV_PWR, CORGI_KEY_OFF, 1); - corgikbd_data->suspend_jiffies=jiffies; - } - } - corgikbd_reset_col(col); - } - - corgikbd_activate_all(); - - input_sync(corgikbd_data->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&corgikbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL)); - - spin_unlock_irqrestore(&corgikbd_data->lock, flags); -} - -/* - * corgi keyboard interrupt handler. - */ -static irqreturn_t corgikbd_interrupt(int irq, void *dev_id) -{ - struct corgikbd *corgikbd_data = dev_id; - - if (!timer_pending(&corgikbd_data->timer)) { - /** wait chattering delay **/ - udelay(20); - corgikbd_scankeyboard(corgikbd_data); - } - - return IRQ_HANDLED; -} - -/* - * corgi timer checking for released keys - */ -static void corgikbd_timer_callback(unsigned long data) -{ - struct corgikbd *corgikbd_data = (struct corgikbd *) data; - corgikbd_scankeyboard(corgikbd_data); -} - -/* - * The hinge switches generate no interrupt so they need to be - * monitored by a timer. - * - * We debounce the switches and pass them to the input system. - * - * gprr == 0x00 - Keyboard with Landscape Screen - * 0x08 - No Keyboard with Portrait Screen - * 0x0c - Keyboard and Screen Closed - */ - -#define READ_GPIO_BIT(x) (GPLR(x) & GPIO_bit(x)) -#define HINGE_STABLE_COUNT 2 -static int sharpsl_hinge_state; -static int hinge_count; - -static void corgikbd_hinge_timer(unsigned long data) -{ - struct corgikbd *corgikbd_data = (struct corgikbd *) data; - unsigned long gprr; - unsigned long flags; - - gprr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_GPRR) & (CORGI_SCP_SWA | CORGI_SCP_SWB); - gprr |= (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0); - if (gprr != sharpsl_hinge_state) { - hinge_count = 0; - sharpsl_hinge_state = gprr; - } else if (hinge_count < HINGE_STABLE_COUNT) { - hinge_count++; - if (hinge_count >= HINGE_STABLE_COUNT) { - spin_lock_irqsave(&corgikbd_data->lock, flags); - - input_report_switch(corgikbd_data->input, SW_LID, ((sharpsl_hinge_state & CORGI_SCP_SWA) != 0)); - input_report_switch(corgikbd_data->input, SW_TABLET_MODE, ((sharpsl_hinge_state & CORGI_SCP_SWB) != 0)); - input_report_switch(corgikbd_data->input, SW_HEADPHONE_INSERT, (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0)); - input_sync(corgikbd_data->input); - - spin_unlock_irqrestore(&corgikbd_data->lock, flags); - } - } - mod_timer(&corgikbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); -} - -#ifdef CONFIG_PM -static int corgikbd_suspend(struct platform_device *dev, pm_message_t state) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(dev); - - corgikbd->suspended = 1; - /* strobe 0 is the power key so this can't be made an input for - powersaving therefore i = 1 */ - for (i = 1; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_IN); - - return 0; -} - -static int corgikbd_resume(struct platform_device *dev) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(dev); - - for (i = 1; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Upon resume, ignore the suspend key for a short while */ - corgikbd->suspend_jiffies=jiffies; - corgikbd->suspended = 0; - - return 0; -} -#else -#define corgikbd_suspend NULL -#define corgikbd_resume NULL -#endif - -static int __devinit corgikbd_probe(struct platform_device *pdev) -{ - struct corgikbd *corgikbd; - struct input_dev *input_dev; - int i, err = -ENOMEM; - - corgikbd = kzalloc(sizeof(struct corgikbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!corgikbd || !input_dev) - goto fail; - - platform_set_drvdata(pdev, corgikbd); - - corgikbd->input = input_dev; - spin_lock_init(&corgikbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&corgikbd->timer); - corgikbd->timer.function = corgikbd_timer_callback; - corgikbd->timer.data = (unsigned long) corgikbd; - - /* Init Hinge Timer */ - init_timer(&corgikbd->htimer); - corgikbd->htimer.function = corgikbd_hinge_timer; - corgikbd->htimer.data = (unsigned long) corgikbd; - - corgikbd->suspend_jiffies=jiffies; - - memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode)); - - input_dev->name = "Corgi Keyboard"; - input_dev->phys = "corgikbd/input0"; - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - input_dev->dev.parent = &pdev->dev; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | - BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); - input_dev->keycode = corgikbd->keycode; - input_dev->keycodesize = sizeof(unsigned char); - input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode); - - for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++) - set_bit(corgikbd->keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); - set_bit(SW_LID, input_dev->swbit); - set_bit(SW_TABLET_MODE, input_dev->swbit); - set_bit(SW_HEADPHONE_INSERT, input_dev->swbit); - - err = input_register_device(corgikbd->input); - if (err) - goto fail; - - mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) { - pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN); - if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "corgikbd", corgikbd)) - printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i); - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Setup the headphone jack as an input */ - pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN); - - return 0; - - fail: input_free_device(input_dev); - kfree(corgikbd); - return err; -} - -static int __devexit corgikbd_remove(struct platform_device *pdev) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(pdev); - - for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) - free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd); - - del_timer_sync(&corgikbd->htimer); - del_timer_sync(&corgikbd->timer); - - input_unregister_device(corgikbd->input); - - kfree(corgikbd); - - return 0; -} - -static struct platform_driver corgikbd_driver = { - .probe = corgikbd_probe, - .remove = __devexit_p(corgikbd_remove), - .suspend = corgikbd_suspend, - .resume = corgikbd_resume, - .driver = { - .name = "corgi-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __init corgikbd_init(void) -{ - return platform_driver_register(&corgikbd_driver); -} - -static void __exit corgikbd_exit(void) -{ - platform_driver_unregister(&corgikbd_driver); -} - -module_init(corgikbd_init); -module_exit(corgikbd_exit); - -MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>"); -MODULE_DESCRIPTION("Corgi Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:corgi-keyboard"); diff --git a/drivers/input/keyboard/spitzkbd.c b/drivers/input/keyboard/spitzkbd.c deleted file mode 100644 index 13967422658c..000000000000 --- a/drivers/input/keyboard/spitzkbd.c +++ /dev/null @@ -1,496 +0,0 @@ -/* - * Keyboard driver for Sharp Spitz, Borzoi and Akita (SL-Cxx00 series) - * - * Copyright (c) 2005 Richard Purdie - * - * Based on corgikbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/init.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/jiffies.h> -#include <linux/module.h> -#include <linux/slab.h> - -#include <mach/spitz.h> -#include <mach/pxa2xx-gpio.h> - -#define KB_ROWS 7 -#define KB_COLS 11 -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r,c) (((r)<<4) + (c) + 1) -#define NR_SCANCODES ((KB_ROWS<<4) + 1) - -#define SCAN_INTERVAL (50) /* ms */ -#define HINGE_SCAN_INTERVAL (150) /* ms */ - -#define SPITZ_KEY_CALENDER KEY_F1 -#define SPITZ_KEY_ADDRESS KEY_F2 -#define SPITZ_KEY_FN KEY_F3 -#define SPITZ_KEY_CANCEL KEY_F4 -#define SPITZ_KEY_EXOK KEY_F5 -#define SPITZ_KEY_EXCANCEL KEY_F6 -#define SPITZ_KEY_EXJOGDOWN KEY_F7 -#define SPITZ_KEY_EXJOGUP KEY_F8 -#define SPITZ_KEY_JAP1 KEY_LEFTALT -#define SPITZ_KEY_JAP2 KEY_RIGHTCTRL -#define SPITZ_KEY_SYNC KEY_F9 -#define SPITZ_KEY_MAIL KEY_F10 -#define SPITZ_KEY_OK KEY_F11 -#define SPITZ_KEY_MENU KEY_F12 - -static unsigned char spitzkbd_keycode[NR_SCANCODES] = { - 0, /* 0 */ - KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */ - 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */ - KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */ - SPITZ_KEY_ADDRESS, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */ - SPITZ_KEY_CALENDER, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */ - SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */ - KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */ -}; - -static int spitz_strobes[] = { - SPITZ_GPIO_KEY_STROBE0, - SPITZ_GPIO_KEY_STROBE1, - SPITZ_GPIO_KEY_STROBE2, - SPITZ_GPIO_KEY_STROBE3, - SPITZ_GPIO_KEY_STROBE4, - SPITZ_GPIO_KEY_STROBE5, - SPITZ_GPIO_KEY_STROBE6, - SPITZ_GPIO_KEY_STROBE7, - SPITZ_GPIO_KEY_STROBE8, - SPITZ_GPIO_KEY_STROBE9, - SPITZ_GPIO_KEY_STROBE10, -}; - -static int spitz_senses[] = { - SPITZ_GPIO_KEY_SENSE0, - SPITZ_GPIO_KEY_SENSE1, - SPITZ_GPIO_KEY_SENSE2, - SPITZ_GPIO_KEY_SENSE3, - SPITZ_GPIO_KEY_SENSE4, - SPITZ_GPIO_KEY_SENSE5, - SPITZ_GPIO_KEY_SENSE6, -}; - -struct spitzkbd { - unsigned char keycode[ARRAY_SIZE(spitzkbd_keycode)]; - struct input_dev *input; - char phys[32]; - - spinlock_t lock; - struct timer_list timer; - struct timer_list htimer; - - unsigned int suspended; - unsigned long suspend_jiffies; -}; - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 11 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -static inline void spitzkbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR0 = SPITZ_GPIO_G0_STROBE_BIT; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPCR1 = SPITZ_GPIO_G1_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPCR2 = SPITZ_GPIO_G2_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPCR3 = SPITZ_GPIO_G3_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; -} - -static inline void spitzkbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR0 = SPITZ_GPIO_G0_STROBE_BIT; - GPDR0 |= SPITZ_GPIO_G0_STROBE_BIT; - GPSR1 = SPITZ_GPIO_G1_STROBE_BIT; - GPDR1 |= SPITZ_GPIO_G1_STROBE_BIT; - GPSR2 = SPITZ_GPIO_G2_STROBE_BIT; - GPDR2 |= SPITZ_GPIO_G2_STROBE_BIT; - GPSR3 = SPITZ_GPIO_G3_STROBE_BIT; - GPDR3 |= SPITZ_GPIO_G3_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* Clear any interrupts we may have triggered when altering the GPIO lines */ - GEDR0 = SPITZ_GPIO_G0_SENSE_BIT; - GEDR1 = SPITZ_GPIO_G1_SENSE_BIT; - GEDR2 = SPITZ_GPIO_G2_SENSE_BIT; - GEDR3 = SPITZ_GPIO_G3_SENSE_BIT; -} - -static inline void spitzkbd_activate_col(int col) -{ - int gpio = spitz_strobes[col]; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; - GPSR(gpio) = GPIO_bit(gpio); - GPDR(gpio) |= GPIO_bit(gpio); -} - -static inline void spitzkbd_reset_col(int col) -{ - int gpio = spitz_strobes[col]; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; - GPCR(gpio) = GPIO_bit(gpio); - GPDR(gpio) |= GPIO_bit(gpio); -} - -static inline int spitzkbd_get_row_status(int col) -{ - return ((GPLR0 >> 12) & 0x01) | ((GPLR0 >> 16) & 0x02) - | ((GPLR2 >> 25) & 0x04) | ((GPLR1 << 1) & 0x08) - | ((GPLR1 >> 0) & 0x10) | ((GPLR1 >> 1) & 0x60); -} - -/* - * The spitz keyboard only generates interrupts when a key is pressed. - * When a key is pressed, we enable a timer which then scans the - * keyboard to detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data) -{ - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed, pwrkey = ((GPLR(SPITZ_GPIO_ON_KEY) & GPIO_bit(SPITZ_GPIO_ON_KEY)) != 0); - - if (spitzkbd_data->suspended) - return; - - spin_lock_irqsave(&spitzkbd_data->lock, flags); - - num_pressed = 0; - for (col = 0; col < KB_COLS; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - - spitzkbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - spitzkbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = spitzkbd_get_row_status(col); - for (row = 0; row < KB_ROWS; row++) { - unsigned int scancode, pressed; - - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - input_report_key(spitzkbd_data->input, spitzkbd_data->keycode[scancode], pressed); - - if (pressed) - num_pressed++; - } - spitzkbd_reset_col(col); - } - - spitzkbd_activate_all(); - - input_report_key(spitzkbd_data->input, SPITZ_KEY_SYNC, (GPLR(SPITZ_GPIO_SYNC) & GPIO_bit(SPITZ_GPIO_SYNC)) != 0 ); - input_report_key(spitzkbd_data->input, KEY_SUSPEND, pwrkey); - - if (pwrkey && time_after(jiffies, spitzkbd_data->suspend_jiffies + msecs_to_jiffies(1000))) { - input_event(spitzkbd_data->input, EV_PWR, KEY_SUSPEND, 1); - spitzkbd_data->suspend_jiffies = jiffies; - } - - input_sync(spitzkbd_data->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&spitzkbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL)); - - spin_unlock_irqrestore(&spitzkbd_data->lock, flags); -} - -/* - * spitz keyboard interrupt handler. - */ -static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id) -{ - struct spitzkbd *spitzkbd_data = dev_id; - - if (!timer_pending(&spitzkbd_data->timer)) { - /** wait chattering delay **/ - udelay(20); - spitzkbd_scankeyboard(spitzkbd_data); - } - - return IRQ_HANDLED; -} - -/* - * spitz timer checking for released keys - */ -static void spitzkbd_timer_callback(unsigned long data) -{ - struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data; - - spitzkbd_scankeyboard(spitzkbd_data); -} - -/* - * The hinge switches generate an interrupt. - * We debounce the switches and pass them to the input system. - */ - -static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id) -{ - struct spitzkbd *spitzkbd_data = dev_id; - - if (!timer_pending(&spitzkbd_data->htimer)) - mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - return IRQ_HANDLED; -} - -#define HINGE_STABLE_COUNT 2 -static int sharpsl_hinge_state; -static int hinge_count; - -static void spitzkbd_hinge_timer(unsigned long data) -{ - struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data; - unsigned long state; - unsigned long flags; - - state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB)); - state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)); - if (state != sharpsl_hinge_state) { - hinge_count = 0; - sharpsl_hinge_state = state; - } else if (hinge_count < HINGE_STABLE_COUNT) { - hinge_count++; - } - - if (hinge_count >= HINGE_STABLE_COUNT) { - spin_lock_irqsave(&spitzkbd_data->lock, flags); - - input_report_switch(spitzkbd_data->input, SW_LID, ((GPLR(SPITZ_GPIO_SWA) & GPIO_bit(SPITZ_GPIO_SWA)) != 0)); - input_report_switch(spitzkbd_data->input, SW_TABLET_MODE, ((GPLR(SPITZ_GPIO_SWB) & GPIO_bit(SPITZ_GPIO_SWB)) != 0)); - input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) != 0)); - input_sync(spitzkbd_data->input); - - spin_unlock_irqrestore(&spitzkbd_data->lock, flags); - } else { - mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - } -} - -#ifdef CONFIG_PM -static int spitzkbd_suspend(struct platform_device *dev, pm_message_t state) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - spitzkbd->suspended = 1; - - /* Set Strobe lines as inputs - *except* strobe line 0 leave this - enabled so we can detect a power button press for resume */ - for (i = 1; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_IN); - - return 0; -} - -static int spitzkbd_resume(struct platform_device *dev) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - - for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Upon resume, ignore the suspend key for a short while */ - spitzkbd->suspend_jiffies = jiffies; - spitzkbd->suspended = 0; - - return 0; -} -#else -#define spitzkbd_suspend NULL -#define spitzkbd_resume NULL -#endif - -static int __devinit spitzkbd_probe(struct platform_device *dev) -{ - struct spitzkbd *spitzkbd; - struct input_dev *input_dev; - int i, err = -ENOMEM; - - spitzkbd = kzalloc(sizeof(struct spitzkbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!spitzkbd || !input_dev) - goto fail; - - platform_set_drvdata(dev, spitzkbd); - strcpy(spitzkbd->phys, "spitzkbd/input0"); - - spin_lock_init(&spitzkbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&spitzkbd->timer); - spitzkbd->timer.function = spitzkbd_timer_callback; - spitzkbd->timer.data = (unsigned long) spitzkbd; - - /* Init Hinge Timer */ - init_timer(&spitzkbd->htimer); - spitzkbd->htimer.function = spitzkbd_hinge_timer; - spitzkbd->htimer.data = (unsigned long) spitzkbd; - - spitzkbd->suspend_jiffies = jiffies; - - spitzkbd->input = input_dev; - - input_dev->name = "Spitz Keyboard"; - input_dev->phys = spitzkbd->phys; - input_dev->dev.parent = &dev->dev; - - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | - BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); - input_dev->keycode = spitzkbd->keycode; - input_dev->keycodesize = sizeof(unsigned char); - input_dev->keycodemax = ARRAY_SIZE(spitzkbd_keycode); - - memcpy(spitzkbd->keycode, spitzkbd_keycode, sizeof(spitzkbd->keycode)); - for (i = 0; i < ARRAY_SIZE(spitzkbd_keycode); i++) - set_bit(spitzkbd->keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); - set_bit(KEY_SUSPEND, input_dev->keybit); - set_bit(SW_LID, input_dev->swbit); - set_bit(SW_TABLET_MODE, input_dev->swbit); - set_bit(SW_HEADPHONE_INSERT, input_dev->swbit); - - err = input_register_device(input_dev); - if (err) - goto fail; - - mod_timer(&spitzkbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) { - pxa_gpio_mode(spitz_senses[i] | GPIO_IN); - if (request_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd_interrupt, - IRQF_DISABLED|IRQF_TRIGGER_RISING, - "Spitzkbd Sense", spitzkbd)) - printk(KERN_WARNING "spitzkbd: Can't get Sense IRQ: %d!\n", i); - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH); - - pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_ON_KEY | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_SWA | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_SWB | GPIO_IN); - - request_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd Sync", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd PwrOn", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd SWA", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd SWB", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd HP", spitzkbd); - - return 0; - - fail: input_free_device(input_dev); - kfree(spitzkbd); - return err; -} - -static int __devexit spitzkbd_remove(struct platform_device *dev) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - - for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) - free_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd); - - free_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd); - - del_timer_sync(&spitzkbd->htimer); - del_timer_sync(&spitzkbd->timer); - - input_unregister_device(spitzkbd->input); - - kfree(spitzkbd); - - return 0; -} - -static struct platform_driver spitzkbd_driver = { - .probe = spitzkbd_probe, - .remove = __devexit_p(spitzkbd_remove), - .suspend = spitzkbd_suspend, - .resume = spitzkbd_resume, - .driver = { - .name = "spitz-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __init spitzkbd_init(void) -{ - return platform_driver_register(&spitzkbd_driver); -} - -static void __exit spitzkbd_exit(void) -{ - platform_driver_unregister(&spitzkbd_driver); -} - -module_init(spitzkbd_init); -module_exit(spitzkbd_exit); - -MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>"); -MODULE_DESCRIPTION("Spitz Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:spitz-keyboard"); diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c deleted file mode 100644 index 3910f269cfc8..000000000000 --- a/drivers/input/keyboard/tosakbd.c +++ /dev/null @@ -1,431 +0,0 @@ -/* - * Keyboard driver for Sharp Tosa models (SL-6000x) - * - * Copyright (c) 2005 Dirk Opfer - * Copyright (c) 2007 Dmitry Baryshkov - * - * Based on xtkbd.c/locomkbd.c/corgikbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/input.h> -#include <linux/delay.h> -#include <linux/interrupt.h> -#include <linux/slab.h> - -#include <mach/gpio.h> -#include <mach/tosa.h> - -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r, c) (((r)<<4) + (c) + 1) -#define NR_SCANCODES SCANCODE(TOSA_KEY_SENSE_NUM - 1, TOSA_KEY_STROBE_NUM - 1) + 1 - -#define SCAN_INTERVAL (HZ/10) - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -static unsigned short tosakbd_keycode[NR_SCANCODES] = { -0, -0, KEY_W, 0, 0, 0, KEY_K, KEY_BACKSPACE, KEY_P, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_Q, KEY_E, KEY_T, KEY_Y, 0, KEY_O, KEY_I, KEY_COMMA, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_A, KEY_D, KEY_G, KEY_U, 0, KEY_L, KEY_ENTER, KEY_DOT, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_Z, KEY_C, KEY_V, KEY_J, TOSA_KEY_ADDRESSBOOK, TOSA_KEY_CANCEL, TOSA_KEY_CENTER, TOSA_KEY_OK, -KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, 0, -KEY_S, KEY_R, KEY_B, KEY_N, TOSA_KEY_CALENDAR, TOSA_KEY_HOMEPAGE, KEY_LEFTCTRL, TOSA_KEY_LIGHT, -0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, -KEY_TAB, KEY_SLASH, KEY_H, KEY_M, TOSA_KEY_MENU, 0, KEY_UP, 0, -0, 0, TOSA_KEY_FN, 0, 0, 0, 0, 0, -KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_RIGHT, -0, 0, 0, -}; - -struct tosakbd { - unsigned short keycode[ARRAY_SIZE(tosakbd_keycode)]; - struct input_dev *input; - bool suspended; - spinlock_t lock; /* protect kbd scanning */ - struct timer_list timer; -}; - - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 12 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -#define GET_ROWS_STATUS(c) ((GPLR2 & TOSA_GPIO_ALL_SENSE_BIT) >> TOSA_GPIO_ALL_SENSE_RSHIFT) - -static inline void tosakbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR1 = TOSA_GPIO_HIGH_STROBE_BIT; - GPDR1 &= ~TOSA_GPIO_HIGH_STROBE_BIT; - GPCR2 = TOSA_GPIO_LOW_STROBE_BIT; - GPDR2 &= ~TOSA_GPIO_LOW_STROBE_BIT; -} - -static inline void tosakbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR1 = TOSA_GPIO_HIGH_STROBE_BIT; - GPDR1 |= TOSA_GPIO_HIGH_STROBE_BIT; - GPSR2 = TOSA_GPIO_LOW_STROBE_BIT; - GPDR2 |= TOSA_GPIO_LOW_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* STATE CLEAR */ - GEDR2 |= TOSA_GPIO_ALL_SENSE_BIT; -} - -static inline void tosakbd_activate_col(int col) -{ - if (col <= 5) { - /* STROBE col -> High, not col -> HiZ */ - GPSR1 = TOSA_GPIO_STROBE_BIT(col); - GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } else { - /* STROBE col -> High, not col -> HiZ */ - GPSR2 = TOSA_GPIO_STROBE_BIT(col); - GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } -} - -static inline void tosakbd_reset_col(int col) -{ - if (col <= 5) { - /* STROBE col -> Low */ - GPCR1 = TOSA_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } else { - /* STROBE col -> Low */ - GPCR2 = TOSA_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } -} -/* - * The tosa keyboard only generates interrupts when a key is pressed. - * So when a key is pressed, we enable a timer. This timer scans the - * keyboard, and this is how we detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void tosakbd_scankeyboard(struct platform_device *dev) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed = 0; - - spin_lock_irqsave(&tosakbd->lock, flags); - - if (tosakbd->suspended) - goto out; - - for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - tosakbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - tosakbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = GET_ROWS_STATUS(col); - - for (row = 0; row < TOSA_KEY_SENSE_NUM; row++) { - unsigned int scancode, pressed; - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - if (pressed && !tosakbd->keycode[scancode]) - dev_warn(&dev->dev, - "unhandled scancode: 0x%02x\n", - scancode); - - input_report_key(tosakbd->input, - tosakbd->keycode[scancode], - pressed); - if (pressed) - num_pressed++; - } - - tosakbd_reset_col(col); - } - - tosakbd_activate_all(); - - input_sync(tosakbd->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL); - - out: - spin_unlock_irqrestore(&tosakbd->lock, flags); -} - -/* - * tosa keyboard interrupt handler. - */ -static irqreturn_t tosakbd_interrupt(int irq, void *__dev) -{ - struct platform_device *dev = __dev; - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - if (!timer_pending(&tosakbd->timer)) { - /** wait chattering delay **/ - udelay(20); - tosakbd_scankeyboard(dev); - } - - return IRQ_HANDLED; -} - -/* - * tosa timer checking for released keys - */ -static void tosakbd_timer_callback(unsigned long __dev) -{ - struct platform_device *dev = (struct platform_device *)__dev; - - tosakbd_scankeyboard(dev); -} - -#ifdef CONFIG_PM -static int tosakbd_suspend(struct platform_device *dev, pm_message_t state) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - unsigned long flags; - - spin_lock_irqsave(&tosakbd->lock, flags); - tosakbd->suspended = true; - spin_unlock_irqrestore(&tosakbd->lock, flags); - - del_timer_sync(&tosakbd->timer); - - return 0; -} - -static int tosakbd_resume(struct platform_device *dev) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - tosakbd->suspended = false; - tosakbd_scankeyboard(dev); - - return 0; -} -#else -#define tosakbd_suspend NULL -#define tosakbd_resume NULL -#endif - -static int __devinit tosakbd_probe(struct platform_device *pdev) { - - int i; - struct tosakbd *tosakbd; - struct input_dev *input_dev; - int error; - - tosakbd = kzalloc(sizeof(struct tosakbd), GFP_KERNEL); - if (!tosakbd) - return -ENOMEM; - - input_dev = input_allocate_device(); - if (!input_dev) { - kfree(tosakbd); - return -ENOMEM; - } - - platform_set_drvdata(pdev, tosakbd); - - spin_lock_init(&tosakbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&tosakbd->timer); - tosakbd->timer.function = tosakbd_timer_callback; - tosakbd->timer.data = (unsigned long) pdev; - - tosakbd->input = input_dev; - - input_set_drvdata(input_dev, tosakbd); - input_dev->name = "Tosa Keyboard"; - input_dev->phys = "tosakbd/input0"; - input_dev->dev.parent = &pdev->dev; - - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); - input_dev->keycode = tosakbd->keycode; - input_dev->keycodesize = sizeof(tosakbd->keycode[0]); - input_dev->keycodemax = ARRAY_SIZE(tosakbd_keycode); - - memcpy(tosakbd->keycode, tosakbd_keycode, sizeof(tosakbd_keycode)); - - for (i = 0; i < ARRAY_SIZE(tosakbd_keycode); i++) - __set_bit(tosakbd->keycode[i], input_dev->keybit); - __clear_bit(KEY_RESERVED, input_dev->keybit); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) { - int gpio = TOSA_GPIO_KEY_SENSE(i); - int irq; - error = gpio_request(gpio, "tosakbd"); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to request GPIO %d, " - " error %d\n", gpio, error); - goto fail; - } - - error = gpio_direction_input(TOSA_GPIO_KEY_SENSE(i)); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to configure input" - " direction for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail; - } - - irq = gpio_to_irq(gpio); - if (irq < 0) { - error = irq; - printk(KERN_ERR "gpio-keys: Unable to get irq number" - " for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail; - } - - error = request_irq(irq, tosakbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "tosakbd", pdev); - - if (error) { - printk("tosakbd: Can't get IRQ: %d: error %d!\n", - irq, error); - gpio_free(gpio); - goto fail; - } - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) { - int gpio = TOSA_GPIO_KEY_STROBE(i); - error = gpio_request(gpio, "tosakbd"); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to request GPIO %d, " - " error %d\n", gpio, error); - goto fail2; - } - - error = gpio_direction_output(gpio, 1); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to configure input" - " direction for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail2; - } - - } - - error = input_register_device(input_dev); - if (error) { - printk(KERN_ERR "tosakbd: Unable to register input device, " - "error: %d\n", error); - goto fail2; - } - - printk(KERN_INFO "input: Tosa Keyboard Registered\n"); - - return 0; - -fail2: - while (--i >= 0) - gpio_free(TOSA_GPIO_KEY_STROBE(i)); - - i = TOSA_KEY_SENSE_NUM; -fail: - while (--i >= 0) { - free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), pdev); - gpio_free(TOSA_GPIO_KEY_SENSE(i)); - } - - platform_set_drvdata(pdev, NULL); - input_free_device(input_dev); - kfree(tosakbd); - - return error; -} - -static int __devexit tosakbd_remove(struct platform_device *dev) -{ - int i; - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) - gpio_free(TOSA_GPIO_KEY_STROBE(i)); - - for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) { - free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), dev); - gpio_free(TOSA_GPIO_KEY_SENSE(i)); - } - - del_timer_sync(&tosakbd->timer); - - input_unregister_device(tosakbd->input); - - kfree(tosakbd); - - return 0; -} - -static struct platform_driver tosakbd_driver = { - .probe = tosakbd_probe, - .remove = __devexit_p(tosakbd_remove), - .suspend = tosakbd_suspend, - .resume = tosakbd_resume, - .driver = { - .name = "tosa-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __devinit tosakbd_init(void) -{ - return platform_driver_register(&tosakbd_driver); -} - -static void __exit tosakbd_exit(void) -{ - platform_driver_unregister(&tosakbd_driver); -} - -module_init(tosakbd_init); -module_exit(tosakbd_exit); - -MODULE_AUTHOR("Dirk Opfer <Dirk@Opfer-Online.de>"); -MODULE_DESCRIPTION("Tosa Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tosa-keyboard"); diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c index ea4e1fd12651..f080dd31499b 100644 --- a/drivers/input/misc/pcspkr.c +++ b/drivers/input/misc/pcspkr.c @@ -30,7 +30,7 @@ MODULE_ALIAS("platform:pcspkr"); #include <asm/i8253.h> #else #include <asm/8253pit.h> -static DEFINE_SPINLOCK(i8253_lock); +static DEFINE_RAW_SPINLOCK(i8253_lock); #endif static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int code, int value) @@ -50,7 +50,7 @@ static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int c if (value > 20 && value < 32767) count = PIT_TICK_RATE / value; - spin_lock_irqsave(&i8253_lock, flags); + raw_spin_lock_irqsave(&i8253_lock, flags); if (count) { /* set command for counter 2, 2 byte write */ @@ -65,7 +65,7 @@ static int pcspkr_event(struct input_dev *dev, unsigned int type, unsigned int c outb(inb_p(0x61) & 0xFC, 0x61); } - spin_unlock_irqrestore(&i8253_lock, flags); + raw_spin_unlock_irqrestore(&i8253_lock, flags); return 0; } diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 8a8fa4d2d6a8..6c0f1712f55b 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -99,22 +99,6 @@ config TOUCHSCREEN_BITSY To compile this driver as a module, choose M here: the module will be called h3600_ts_input. -config TOUCHSCREEN_CORGI - tristate "SharpSL (Corgi and Spitz series) touchscreen driver (DEPRECATED)" - depends on PXA_SHARPSL - select CORGI_SSP_DEPRECATED - help - Say Y here to enable the driver for the touchscreen on the - Sharp SL-C7xx and SL-Cxx00 series of PDAs. - - If unsure, say N. - - To compile this driver as a module, choose M here: the - module will be called corgi_ts. - - NOTE: this driver is deprecated, try enable SPI and generic - ADS7846-based touchscreen driver. - config TOUCHSCREEN_DA9034 tristate "Touchscreen support for Dialog Semiconductor DA9034" depends on PMIC_DA903X @@ -158,8 +142,8 @@ config TOUCHSCREEN_FUJITSU module will be called fujitsu-ts. config TOUCHSCREEN_S3C2410 - tristate "Samsung S3C2410 touchscreen input driver" - depends on ARCH_S3C2410 + tristate "Samsung S3C2410/generic touchscreen input driver" + depends on ARCH_S3C2410 || SAMSUNG_DEV_TS select S3C24XX_ADC help Say Y here if you have the s3c2410 touchscreen. diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile index 7fef7d5cca23..41145d074dec 100644 --- a/drivers/input/touchscreen/Makefile +++ b/drivers/input/touchscreen/Makefile @@ -12,7 +12,6 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o -obj-$(CONFIG_TOUCHSCREEN_CORGI) += corgi_ts.o obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o obj-$(CONFIG_TOUCHSCREEN_GUNZE) += gunze.o obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o diff --git a/drivers/input/touchscreen/corgi_ts.c b/drivers/input/touchscreen/corgi_ts.c deleted file mode 100644 index 94a1919d439d..000000000000 --- a/drivers/input/touchscreen/corgi_ts.c +++ /dev/null @@ -1,385 +0,0 @@ -/* - * Touchscreen driver for Sharp SL-C7xx and SL-Cxx00 models - * - * Copyright (c) 2004-2005 Richard Purdie - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - - -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/init.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/irq.h> - -#include <mach/sharpsl.h> -#include <mach/hardware.h> -#include <mach/pxa2xx-gpio.h> - - -#define PWR_MODE_ACTIVE 0 -#define PWR_MODE_SUSPEND 1 - -#define X_AXIS_MAX 3830 -#define X_AXIS_MIN 150 -#define Y_AXIS_MAX 3830 -#define Y_AXIS_MIN 190 -#define PRESSURE_MIN 0 -#define PRESSURE_MAX 15000 - -struct ts_event { - short pressure; - short x; - short y; -}; - -struct corgi_ts { - struct input_dev *input; - struct timer_list timer; - struct ts_event tc; - int pendown; - int power_mode; - int irq_gpio; - struct corgits_machinfo *machinfo; -}; - -#ifdef CONFIG_PXA25x -#define CCNT(a) asm volatile ("mrc p14, 0, %0, C1, C0, 0" : "=r"(a)) -#define PMNC_GET(x) asm volatile ("mrc p14, 0, %0, C0, C0, 0" : "=r"(x)) -#define PMNC_SET(x) asm volatile ("mcr p14, 0, %0, C0, C0, 0" : : "r"(x)) -#endif -#ifdef CONFIG_PXA27x -#define CCNT(a) asm volatile ("mrc p14, 0, %0, C1, C1, 0" : "=r"(a)) -#define PMNC_GET(x) asm volatile ("mrc p14, 0, %0, C0, C1, 0" : "=r"(x)) -#define PMNC_SET(x) asm volatile ("mcr p14, 0, %0, C0, C1, 0" : : "r"(x)) -#endif - -/* ADS7846 Touch Screen Controller bit definitions */ -#define ADSCTRL_PD0 (1u << 0) /* PD0 */ -#define ADSCTRL_PD1 (1u << 1) /* PD1 */ -#define ADSCTRL_DFR (1u << 2) /* SER/DFR */ -#define ADSCTRL_MOD (1u << 3) /* Mode */ -#define ADSCTRL_ADR_SH 4 /* Address setting */ -#define ADSCTRL_STS (1u << 7) /* Start Bit */ - -/* External Functions */ -extern unsigned int get_clk_frequency_khz(int info); - -static unsigned long calc_waittime(struct corgi_ts *corgi_ts) -{ - unsigned long hsync_invperiod = corgi_ts->machinfo->get_hsync_invperiod(); - - if (hsync_invperiod) - return get_clk_frequency_khz(0)*1000/hsync_invperiod; - else - return 0; -} - -static int sync_receive_data_send_cmd(struct corgi_ts *corgi_ts, int doRecive, int doSend, - unsigned int address, unsigned long wait_time) -{ - unsigned long timer1 = 0, timer2, pmnc = 0; - int pos = 0; - - if (wait_time && doSend) { - PMNC_GET(pmnc); - if (!(pmnc & 0x01)) - PMNC_SET(0x01); - - /* polling HSync */ - corgi_ts->machinfo->wait_hsync(); - /* get CCNT */ - CCNT(timer1); - } - - if (doRecive) - pos = corgi_ssp_ads7846_get(); - - if (doSend) { - int cmd = ADSCTRL_PD0 | ADSCTRL_PD1 | (address << ADSCTRL_ADR_SH) | ADSCTRL_STS; - /* dummy command */ - corgi_ssp_ads7846_put(cmd); - corgi_ssp_ads7846_get(); - - if (wait_time) { - /* Wait after HSync */ - CCNT(timer2); - if (timer2-timer1 > wait_time) { - /* too slow - timeout, try again */ - corgi_ts->machinfo->wait_hsync(); - /* get CCNT */ - CCNT(timer1); - /* Wait after HSync */ - CCNT(timer2); - } - while (timer2 - timer1 < wait_time) - CCNT(timer2); - } - corgi_ssp_ads7846_put(cmd); - if (wait_time && !(pmnc & 0x01)) - PMNC_SET(pmnc); - } - return pos; -} - -static int read_xydata(struct corgi_ts *corgi_ts) -{ - unsigned int x, y, z1, z2; - unsigned long flags, wait_time; - - /* critical section */ - local_irq_save(flags); - corgi_ssp_ads7846_lock(); - wait_time = calc_waittime(corgi_ts); - - /* Y-axis */ - sync_receive_data_send_cmd(corgi_ts, 0, 1, 1u, wait_time); - - /* Y-axis */ - sync_receive_data_send_cmd(corgi_ts, 1, 1, 1u, wait_time); - - /* X-axis */ - y = sync_receive_data_send_cmd(corgi_ts, 1, 1, 5u, wait_time); - - /* Z1 */ - x = sync_receive_data_send_cmd(corgi_ts, 1, 1, 3u, wait_time); - - /* Z2 */ - z1 = sync_receive_data_send_cmd(corgi_ts, 1, 1, 4u, wait_time); - z2 = sync_receive_data_send_cmd(corgi_ts, 1, 0, 4u, wait_time); - - /* Power-Down Enable */ - corgi_ssp_ads7846_put((1u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - corgi_ssp_ads7846_get(); - - corgi_ssp_ads7846_unlock(); - local_irq_restore(flags); - - if (x== 0 || y == 0 || z1 == 0 || (x * (z2 - z1) / z1) >= 15000) { - corgi_ts->tc.pressure = 0; - return 0; - } - - corgi_ts->tc.x = x; - corgi_ts->tc.y = y; - corgi_ts->tc.pressure = (x * (z2 - z1)) / z1; - return 1; -} - -static void new_data(struct corgi_ts *corgi_ts) -{ - struct input_dev *dev = corgi_ts->input; - - if (corgi_ts->power_mode != PWR_MODE_ACTIVE) - return; - - if (!corgi_ts->tc.pressure && corgi_ts->pendown == 0) - return; - - input_report_abs(dev, ABS_X, corgi_ts->tc.x); - input_report_abs(dev, ABS_Y, corgi_ts->tc.y); - input_report_abs(dev, ABS_PRESSURE, corgi_ts->tc.pressure); - input_report_key(dev, BTN_TOUCH, corgi_ts->pendown); - input_sync(dev); -} - -static void ts_interrupt_main(struct corgi_ts *corgi_ts, int isTimer) -{ - if ((GPLR(IRQ_TO_GPIO(corgi_ts->irq_gpio)) & GPIO_bit(IRQ_TO_GPIO(corgi_ts->irq_gpio))) == 0) { - /* Disable Interrupt */ - set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_NONE); - if (read_xydata(corgi_ts)) { - corgi_ts->pendown = 1; - new_data(corgi_ts); - } - mod_timer(&corgi_ts->timer, jiffies + HZ / 100); - } else { - if (corgi_ts->pendown == 1 || corgi_ts->pendown == 2) { - mod_timer(&corgi_ts->timer, jiffies + HZ / 100); - corgi_ts->pendown++; - return; - } - - if (corgi_ts->pendown) { - corgi_ts->tc.pressure = 0; - new_data(corgi_ts); - } - - /* Enable Falling Edge */ - set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING); - corgi_ts->pendown = 0; - } -} - -static void corgi_ts_timer(unsigned long data) -{ - struct corgi_ts *corgits_data = (struct corgi_ts *) data; - - ts_interrupt_main(corgits_data, 1); -} - -static irqreturn_t ts_interrupt(int irq, void *dev_id) -{ - struct corgi_ts *corgits_data = dev_id; - - ts_interrupt_main(corgits_data, 0); - return IRQ_HANDLED; -} - -#ifdef CONFIG_PM -static int corgits_suspend(struct platform_device *dev, pm_message_t state) -{ - struct corgi_ts *corgi_ts = platform_get_drvdata(dev); - - if (corgi_ts->pendown) { - del_timer_sync(&corgi_ts->timer); - corgi_ts->tc.pressure = 0; - new_data(corgi_ts); - corgi_ts->pendown = 0; - } - corgi_ts->power_mode = PWR_MODE_SUSPEND; - - corgi_ssp_ads7846_putget((1u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - - return 0; -} - -static int corgits_resume(struct platform_device *dev) -{ - struct corgi_ts *corgi_ts = platform_get_drvdata(dev); - - corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - /* Enable Falling Edge */ - set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING); - corgi_ts->power_mode = PWR_MODE_ACTIVE; - - return 0; -} -#else -#define corgits_suspend NULL -#define corgits_resume NULL -#endif - -static int __devinit corgits_probe(struct platform_device *pdev) -{ - struct corgi_ts *corgi_ts; - struct input_dev *input_dev; - int err = -ENOMEM; - - corgi_ts = kzalloc(sizeof(struct corgi_ts), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!corgi_ts || !input_dev) - goto fail1; - - platform_set_drvdata(pdev, corgi_ts); - - corgi_ts->machinfo = pdev->dev.platform_data; - corgi_ts->irq_gpio = platform_get_irq(pdev, 0); - - if (corgi_ts->irq_gpio < 0) { - err = -ENODEV; - goto fail1; - } - - corgi_ts->input = input_dev; - - init_timer(&corgi_ts->timer); - corgi_ts->timer.data = (unsigned long) corgi_ts; - corgi_ts->timer.function = corgi_ts_timer; - - input_dev->name = "Corgi Touchscreen"; - input_dev->phys = "corgits/input0"; - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0002; - input_dev->id.version = 0x0100; - input_dev->dev.parent = &pdev->dev; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); - input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); - input_set_abs_params(input_dev, ABS_X, X_AXIS_MIN, X_AXIS_MAX, 0, 0); - input_set_abs_params(input_dev, ABS_Y, Y_AXIS_MIN, Y_AXIS_MAX, 0, 0); - input_set_abs_params(input_dev, ABS_PRESSURE, PRESSURE_MIN, PRESSURE_MAX, 0, 0); - - pxa_gpio_mode(IRQ_TO_GPIO(corgi_ts->irq_gpio) | GPIO_IN); - - /* Initiaize ADS7846 Difference Reference mode */ - corgi_ssp_ads7846_putget((1u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - mdelay(5); - corgi_ssp_ads7846_putget((3u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - mdelay(5); - corgi_ssp_ads7846_putget((4u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - mdelay(5); - corgi_ssp_ads7846_putget((5u << ADSCTRL_ADR_SH) | ADSCTRL_STS); - mdelay(5); - - if (request_irq(corgi_ts->irq_gpio, ts_interrupt, IRQF_DISABLED, "ts", corgi_ts)) { - err = -EBUSY; - goto fail1; - } - - err = input_register_device(corgi_ts->input); - if (err) - goto fail2; - - corgi_ts->power_mode = PWR_MODE_ACTIVE; - - /* Enable Falling Edge */ - set_irq_type(corgi_ts->irq_gpio, IRQ_TYPE_EDGE_FALLING); - - return 0; - - fail2: free_irq(corgi_ts->irq_gpio, corgi_ts); - fail1: input_free_device(input_dev); - kfree(corgi_ts); - return err; -} - -static int __devexit corgits_remove(struct platform_device *pdev) -{ - struct corgi_ts *corgi_ts = platform_get_drvdata(pdev); - - free_irq(corgi_ts->irq_gpio, corgi_ts); - del_timer_sync(&corgi_ts->timer); - corgi_ts->machinfo->put_hsync(); - input_unregister_device(corgi_ts->input); - kfree(corgi_ts); - - return 0; -} - -static struct platform_driver corgits_driver = { - .probe = corgits_probe, - .remove = __devexit_p(corgits_remove), - .suspend = corgits_suspend, - .resume = corgits_resume, - .driver = { - .name = "corgi-ts", - .owner = THIS_MODULE, - }, -}; - -static int __init corgits_init(void) -{ - return platform_driver_register(&corgits_driver); -} - -static void __exit corgits_exit(void) -{ - platform_driver_unregister(&corgits_driver); -} - -module_init(corgits_init); -module_exit(corgits_exit); - -MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>"); -MODULE_DESCRIPTION("Corgi TouchScreen Driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:corgi-ts"); diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c index 98a7d1279486..e0b7c834111d 100644 --- a/drivers/input/touchscreen/s3c2410_ts.c +++ b/drivers/input/touchscreen/s3c2410_ts.c @@ -37,9 +37,7 @@ #include <plat/adc.h> #include <plat/regs-adc.h> - -#include <mach/regs-gpio.h> -#include <mach/ts.h> +#include <plat/ts.h> #define TSC_SLEEP (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0)) @@ -57,6 +55,8 @@ S3C2410_ADCTSC_AUTO_PST | \ S3C2410_ADCTSC_XY_PST(0)) +#define FEAT_PEN_IRQ (1 << 0) /* HAS ADCCLRINTPNDNUP */ + /* Per-touchscreen data. */ /** @@ -71,6 +71,7 @@ * @irq_tc: The interrupt number for pen up/down interrupt * @count: The number of samples collected. * @shift: The log2 of the maximum count to read in one go. + * @features: The features supported by the TSADC MOdule. */ struct s3c2410ts { struct s3c_adc_client *client; @@ -83,26 +84,12 @@ struct s3c2410ts { int irq_tc; int count; int shift; + int features; }; static struct s3c2410ts ts; /** - * s3c2410_ts_connect - configure gpio for s3c2410 systems - * - * Configure the GPIO for the S3C2410 system, where we have external FETs - * connected to the device (later systems such as the S3C2440 integrate - * these into the device). -*/ -static inline void s3c2410_ts_connect(void) -{ - s3c2410_gpio_cfgpin(S3C2410_GPG(12), S3C2410_GPG12_XMON); - s3c2410_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPG13_nXPON); - s3c2410_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPG14_YMON); - s3c2410_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPG15_nYPON); -} - -/** * get_down - return the down state of the pen * @data0: The data read from ADCDAT0 register. * @data1: The data read from ADCDAT1 register. @@ -188,6 +175,11 @@ static irqreturn_t stylus_irq(int irq, void *dev_id) else dev_info(ts.dev, "%s: count=%d\n", __func__, ts.count); + if (ts.features & FEAT_PEN_IRQ) { + /* Clear pen down/up interrupt */ + writel(0x0, ts.io + S3C64XX_ADCCLRINTPNDNUP); + } + return IRQ_HANDLED; } @@ -296,9 +288,9 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev) goto err_clk; } - /* Configure the touchscreen external FETs on the S3C2410 */ - if (!platform_get_device_id(pdev)->driver_data) - s3c2410_ts_connect(); + /* inititalise the gpio */ + if (info->cfg_gpio) + info->cfg_gpio(to_platform_device(ts.dev)); ts.client = s3c_adc_register(pdev, s3c24xx_ts_select, s3c24xx_ts_conversion, 1); @@ -334,6 +326,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev) ts.input->id.version = 0x0102; ts.shift = info->oversampling_shift; + ts.features = platform_get_device_id(pdev)->driver_data; ret = request_irq(ts.irq_tc, stylus_irq, IRQF_DISABLED, "s3c2410_ts_pen", ts.input); @@ -420,15 +413,14 @@ static struct dev_pm_ops s3c_ts_pmops = { #endif static struct platform_device_id s3cts_driver_ids[] = { - { "s3c2410-ts", 0 }, - { "s3c2440-ts", 1 }, + { "s3c64xx-ts", FEAT_PEN_IRQ }, { } }; MODULE_DEVICE_TABLE(platform, s3cts_driver_ids); static struct platform_driver s3c_ts_driver = { .driver = { - .name = "s3c24xx-ts", + .name = "samsung-ts", .owner = THIS_MODULE, #ifdef CONFIG_PM .pm = &s3c_ts_pmops, diff --git a/drivers/isdn/divert/divert_procfs.c b/drivers/isdn/divert/divert_procfs.c index 9f49d9065791..c53e2417e7d4 100644 --- a/drivers/isdn/divert/divert_procfs.c +++ b/drivers/isdn/divert/divert_procfs.c @@ -20,6 +20,7 @@ #include <linux/sched.h> #include <linux/isdnif.h> #include <net/net_namespace.h> +#include <linux/smp_lock.h> #include "isdn_divert.h" @@ -177,9 +178,7 @@ isdn_divert_close(struct inode *ino, struct file *filep) /*********/ /* IOCTL */ /*********/ -static int -isdn_divert_ioctl(struct inode *inode, struct file *file, - uint cmd, ulong arg) +static int isdn_divert_ioctl_unlocked(struct file *file, uint cmd, ulong arg) { divert_ioctl dioctl; int i; @@ -258,6 +257,17 @@ isdn_divert_ioctl(struct inode *inode, struct file *file, return copy_to_user((void __user *)arg, &dioctl, sizeof(dioctl)) ? -EFAULT : 0; } /* isdn_divert_ioctl */ +static long isdn_divert_ioctl(struct file *file, uint cmd, ulong arg) +{ + long ret; + + lock_kernel(); + ret = isdn_divert_ioctl_unlocked(file, cmd, arg); + unlock_kernel(); + + return ret; +} + static const struct file_operations isdn_fops = { .owner = THIS_MODULE, @@ -265,7 +275,7 @@ static const struct file_operations isdn_fops = .read = isdn_divert_read, .write = isdn_divert_write, .poll = isdn_divert_poll, - .ioctl = isdn_divert_ioctl, + .unlocked_ioctl = isdn_divert_ioctl, .open = isdn_divert_open, .release = isdn_divert_close, }; diff --git a/drivers/isdn/hardware/avm/avm_cs.c b/drivers/isdn/hardware/avm/avm_cs.c index 94b796d84053..f410d0eb2fef 100644 --- a/drivers/isdn/hardware/avm/avm_cs.c +++ b/drivers/isdn/hardware/avm/avm_cs.c @@ -13,7 +13,6 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/ptrace.h> -#include <linux/slab.h> #include <linux/string.h> #include <linux/tty.h> #include <linux/serial.h> @@ -61,31 +60,6 @@ static void avmcs_release(struct pcmcia_device *link); static void avmcs_detach(struct pcmcia_device *p_dev); -/* - A linked list of "instances" of the skeleton device. Each actual - PCMCIA card corresponds to one device instance, and is described - by one struct pcmcia_device structure (defined in ds.h). - - You may not want to use a linked list for this -- for example, the - memory card driver uses an array of struct pcmcia_device pointers, where minor - device numbers are used to derive the corresponding array index. -*/ - -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally can't be allocated dynamically. -*/ - -typedef struct local_info_t { - dev_node_t node; -} local_info_t; - /*====================================================================== avmcs_attach() creates an "instance" of the driver, allocating @@ -100,32 +74,19 @@ typedef struct local_info_t { static int avmcs_probe(struct pcmcia_device *p_dev) { - local_info_t *local; /* The io structure describes IO port mapping */ p_dev->io.NumPorts1 = 16; p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.NumPorts2 = 0; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; p_dev->conf.ConfigIndex = 1; p_dev->conf.Present = PRESENT_OPTION; - /* Allocate space for private device-specific data */ - local = kzalloc(sizeof(local_info_t), GFP_KERNEL); - if (!local) - goto err; - p_dev->priv = local; - return avmcs_config(p_dev); - - err: - return -ENOMEM; } /* avmcs_attach */ /*====================================================================== @@ -140,7 +101,6 @@ static int avmcs_probe(struct pcmcia_device *p_dev) static void avmcs_detach(struct pcmcia_device *link) { avmcs_release(link); - kfree(link->priv); } /* avmcs_detach */ /*====================================================================== @@ -171,14 +131,11 @@ static int avmcs_configcheck(struct pcmcia_device *p_dev, static int avmcs_config(struct pcmcia_device *link) { - local_info_t *dev; - int i; + int i = -1; char devname[128]; int cardtype; int (*addcard)(unsigned int port, unsigned irq); - dev = link->priv; - devname[0] = 0; if (link->prod_id[1]) strlcpy(devname, link->prod_id[1], sizeof(devname)); @@ -190,11 +147,7 @@ static int avmcs_config(struct pcmcia_device *link) return -ENODEV; do { - /* - * allocate an interrupt line - */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { + if (!link->irq) { /* undo */ pcmcia_disable_device(link); break; @@ -211,15 +164,11 @@ static int avmcs_config(struct pcmcia_device *link) } while (0); - /* At this point, the dev_node_t structure(s) should be - initialized and arranged in a linked list at link->dev. */ - if (devname[0]) { char *s = strrchr(devname, ' '); if (!s) s = devname; else s++; - strcpy(dev->node.dev_name, s); if (strcmp("M1", s) == 0) { cardtype = AVM_CARDTYPE_M1; } else if (strcmp("M2", s) == 0) { @@ -227,14 +176,8 @@ static int avmcs_config(struct pcmcia_device *link) } else { cardtype = AVM_CARDTYPE_B1; } - } else { - strcpy(dev->node.dev_name, "b1"); + } else cardtype = AVM_CARDTYPE_B1; - } - - dev->node.major = 64; - dev->node.minor = 0; - link->dev_node = &dev->node; /* If any step failed, release any partially configured state */ if (i != 0) { @@ -249,13 +192,12 @@ static int avmcs_config(struct pcmcia_device *link) default: case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break; } - if ((i = (*addcard)(link->io.BasePort1, link->irq.AssignedIRQ)) < 0) { - printk(KERN_ERR "avm_cs: failed to add AVM-%s-Controller at i/o %#x, irq %d\n", - dev->node.dev_name, link->io.BasePort1, link->irq.AssignedIRQ); - avmcs_release(link); - return -ENODEV; + if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) { + dev_err(&link->dev, "avm_cs: failed to add AVM-Controller at i/o %#x, irq %d\n", + link->io.BasePort1, link->irq); + avmcs_release(link); + return -ENODEV; } - dev->node.minor = i; return 0; } /* avmcs_config */ @@ -270,7 +212,7 @@ static int avmcs_config(struct pcmcia_device *link) static void avmcs_release(struct pcmcia_device *link) { - b1pcmcia_delcard(link->io.BasePort1, link->irq.AssignedIRQ); + b1pcmcia_delcard(link->io.BasePort1, link->irq); pcmcia_disable_device(link); } /* avmcs_release */ diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index 75e71b5d9215..095ed76ebe80 100644 --- a/drivers/isdn/hardware/mISDN/hfcmulti.c +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -117,7 +117,7 @@ * NOTE: only one mode value must be given for every card. * -> See hfc_multi.h for HFC_IO_MODE_* values * By default, the IO mode is pci memory IO (MEMIO). - * Some cards requre specific IO mode, so it cannot be changed. + * Some cards require specific IO mode, so it cannot be changed. * It may be usefull to set IO mode to register io (REGIO) to solve * PCI bridge problems. * If unsure, don't give this parameter. diff --git a/drivers/isdn/hisax/avma1_cs.c b/drivers/isdn/hisax/avma1_cs.c index 8d1d63a02b34..a80a7617f16f 100644 --- a/drivers/isdn/hisax/avma1_cs.c +++ b/drivers/isdn/hisax/avma1_cs.c @@ -62,31 +62,6 @@ static void avma1cs_release(struct pcmcia_device *link); static void avma1cs_detach(struct pcmcia_device *p_dev) __devexit ; -/* - A linked list of "instances" of the skeleton device. Each actual - PCMCIA card corresponds to one device instance, and is described - by one struct pcmcia_device structure (defined in ds.h). - - You may not want to use a linked list for this -- for example, the - memory card driver uses an array of struct pcmcia_device pointers, where minor - device numbers are used to derive the corresponding array index. -*/ - -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally can't be allocated dynamically. -*/ - -typedef struct local_info_t { - dev_node_t node; -} local_info_t; - /*====================================================================== avma1cs_attach() creates an "instance" of the driver, allocating @@ -101,17 +76,8 @@ typedef struct local_info_t { static int __devinit avma1cs_probe(struct pcmcia_device *p_dev) { - local_info_t *local; - dev_dbg(&p_dev->dev, "avma1cs_attach()\n"); - /* Allocate space for private device-specific data */ - local = kzalloc(sizeof(local_info_t), GFP_KERNEL); - if (!local) - return -ENOMEM; - - p_dev->priv = local; - /* The io structure describes IO port mapping */ p_dev->io.NumPorts1 = 16; p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; @@ -119,9 +85,6 @@ static int __devinit avma1cs_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_16; p_dev->io.IOAddrLines = 5; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -176,14 +139,11 @@ static int avma1cs_configcheck(struct pcmcia_device *p_dev, static int __devinit avma1cs_config(struct pcmcia_device *link) { - local_info_t *dev; - int i; + int i = -1; char devname[128]; IsdnCard_t icard; int busy = 0; - dev = link->priv; - dev_dbg(&link->dev, "avma1cs_config(0x%p)\n", link); devname[0] = 0; @@ -197,8 +157,7 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) /* * allocate an interrupt line */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { + if (!link->irq) { /* undo */ pcmcia_disable_device(link); break; @@ -215,14 +174,6 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) } while (0); - /* At this point, the dev_node_t structure(s) should be - initialized and arranged in a linked list at link->dev. */ - - strcpy(dev->node.dev_name, "A1"); - dev->node.major = 45; - dev->node.minor = 0; - link->dev_node = &dev->node; - /* If any step failed, release any partially configured state */ if (i != 0) { avma1cs_release(link); @@ -230,9 +181,9 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) } printk(KERN_NOTICE "avma1_cs: checking at i/o %#x, irq %d\n", - link->io.BasePort1, link->irq.AssignedIRQ); + link->io.BasePort1, link->irq); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = isdnprot; icard.typ = ISDN_CTYPE_A1_PCMCIA; @@ -243,7 +194,7 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) avma1cs_release(link); return -ENODEV; } - dev->node.minor = i; + link->priv = (void *) (unsigned long) i; return 0; } /* avma1cs_config */ @@ -258,12 +209,12 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) static void avma1cs_release(struct pcmcia_device *link) { - local_info_t *local = link->priv; + unsigned long minor = (unsigned long) link->priv; dev_dbg(&link->dev, "avma1cs_release(0x%p)\n", link); /* now unregister function with hisax */ - HiSax_closecard(local->node.minor); + HiSax_closecard(minor); pcmcia_disable_device(link); } /* avma1cs_release */ diff --git a/drivers/isdn/hisax/elsa_cs.c b/drivers/isdn/hisax/elsa_cs.c index c9f2279e21f5..218927e3a4ea 100644 --- a/drivers/isdn/hisax/elsa_cs.c +++ b/drivers/isdn/hisax/elsa_cs.c @@ -87,24 +87,8 @@ static void elsa_cs_release(struct pcmcia_device *link); static void elsa_cs_detach(struct pcmcia_device *p_dev) __devexit; -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally shouldn't be allocated dynamically. - In this case, we also provide a flag to indicate if a device is - "stopped" due to a power management event, or card ejection. The - device IO routines can use a flag like this to throttle IO to a - card that is not ready to accept it. -*/ - typedef struct local_info_t { struct pcmcia_device *p_dev; - dev_node_t node; int busy; int cardnr; } local_info_t; @@ -136,10 +120,6 @@ static int __devinit elsa_cs_probe(struct pcmcia_device *link) local->cardnr = -1; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -223,28 +203,18 @@ static int __devinit elsa_cs_config(struct pcmcia_device *link) if (i != 0) goto failed; - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { - link->irq.AssignedIRQ = 0; + if (!link->irq) goto failed; - } i = pcmcia_request_configuration(link, &link->conf); if (i != 0) goto failed; - /* At this point, the dev_node_t structure(s) should be - initialized and arranged in a linked list at link->dev. *//* */ - sprintf(dev->node.dev_name, "elsa"); - dev->node.major = dev->node.minor = 0x0; - - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x: ", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x: ", + link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -253,7 +223,7 @@ static int __devinit elsa_cs_config(struct pcmcia_device *link) link->io.BasePort2+link->io.NumPorts2-1); printk("\n"); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = protocol; icard.typ = ISDN_CTYPE_ELSA_PCMCIA; diff --git a/drivers/isdn/hisax/hfc4s8s_l1.c b/drivers/isdn/hisax/hfc4s8s_l1.c index 051b44e2556c..384d5118e325 100644 --- a/drivers/isdn/hisax/hfc4s8s_l1.c +++ b/drivers/isdn/hisax/hfc4s8s_l1.c @@ -310,7 +310,7 @@ wait_busy(hfc4s8s_hw * a) /******************************************************/ /* function to read critical counter registers that */ -/* may be udpated by the chip during read */ +/* may be updated by the chip during read */ /******************************************************/ static u_char Read_hfc8_stable(hfc4s8s_hw * hw, int reg) diff --git a/drivers/isdn/hisax/sedlbauer_cs.c b/drivers/isdn/hisax/sedlbauer_cs.c index 71b3ddef03bb..1f4feaab21af 100644 --- a/drivers/isdn/hisax/sedlbauer_cs.c +++ b/drivers/isdn/hisax/sedlbauer_cs.c @@ -87,32 +87,8 @@ static void sedlbauer_release(struct pcmcia_device *link); static void sedlbauer_detach(struct pcmcia_device *p_dev) __devexit; -/* - You'll also need to prototype all the functions that will actually - be used to talk to your device. See 'memory_cs' for a good example - of a fully self-sufficient driver; the other drivers rely more or - less on other parts of the kernel. -*/ - -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally shouldn't be allocated dynamically. - - In this case, we also provide a flag to indicate if a device is - "stopped" due to a power management event, or card ejection. The - device IO routines can use a flag like this to throttle IO to a - card that is not ready to accept it. -*/ - typedef struct local_info_t { struct pcmcia_device *p_dev; - dev_node_t node; int stop; int cardnr; } local_info_t; @@ -143,10 +119,6 @@ static int __devinit sedlbauer_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -227,9 +199,7 @@ static int sedlbauer_config_check(struct pcmcia_device *p_dev, else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -285,7 +255,6 @@ static int sedlbauer_config_check(struct pcmcia_device *p_dev, static int __devinit sedlbauer_config(struct pcmcia_device *link) { - local_info_t *dev = link->priv; win_req_t *req; int ret; IsdnCard_t icard; @@ -313,17 +282,6 @@ static int __devinit sedlbauer_config(struct pcmcia_device *link) goto failed; /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } - - /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping, and putting the card and host interface into "Memory and IO" mode. @@ -332,21 +290,13 @@ static int __devinit sedlbauer_config(struct pcmcia_device *link) if (ret) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - sprintf(dev->node.dev_name, "sedlbauer"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x:", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x:", + link->conf.ConfigIndex); if (link->conf.Vpp) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -358,7 +308,7 @@ static int __devinit sedlbauer_config(struct pcmcia_device *link) req->Base+req->Size-1); printk("\n"); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = protocol; icard.typ = ISDN_CTYPE_SEDLBAUER_PCMCIA; diff --git a/drivers/isdn/hisax/teles_cs.c b/drivers/isdn/hisax/teles_cs.c index d010a0da8e19..5771955cc532 100644 --- a/drivers/isdn/hisax/teles_cs.c +++ b/drivers/isdn/hisax/teles_cs.c @@ -68,34 +68,8 @@ static void teles_cs_release(struct pcmcia_device *link); static void teles_detach(struct pcmcia_device *p_dev) __devexit ; -/* - A linked list of "instances" of the teles_cs device. Each actual - PCMCIA card corresponds to one device instance, and is described - by one struct pcmcia_device structure (defined in ds.h). - - You may not want to use a linked list for this -- for example, the - memory card driver uses an array of struct pcmcia_device pointers, where minor - device numbers are used to derive the corresponding array index. -*/ - -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally shouldn't be allocated dynamically. - In this case, we also provide a flag to indicate if a device is - "stopped" due to a power management event, or card ejection. The - device IO routines can use a flag like this to throttle IO to a - card that is not ready to accept it. -*/ - typedef struct local_info_t { struct pcmcia_device *p_dev; - dev_node_t node; int busy; int cardnr; } local_info_t; @@ -126,10 +100,6 @@ static int __devinit teles_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -213,28 +183,18 @@ static int __devinit teles_cs_config(struct pcmcia_device *link) if (i != 0) goto cs_failed; - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { - link->irq.AssignedIRQ = 0; + if (!link->irq) goto cs_failed; - } i = pcmcia_request_configuration(link, &link->conf); if (i != 0) goto cs_failed; - /* At this point, the dev_node_t structure(s) should be - initialized and arranged in a linked list at link->dev. *//* */ - sprintf(dev->node.dev_name, "teles"); - dev->node.major = dev->node.minor = 0x0; - - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x:", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x:", + link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -243,7 +203,7 @@ static int __devinit teles_cs_config(struct pcmcia_device *link) link->io.BasePort2+link->io.NumPorts2-1); printk("\n"); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = protocol; icard.typ = ISDN_CTYPE_TELESPCMCIA; diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c index 565d5b2adc95..129cda737880 100644 --- a/drivers/macintosh/windfarm_pm81.c +++ b/drivers/macintosh/windfarm_pm81.c @@ -188,7 +188,7 @@ struct wf_smu_sys_fans_state { }; /* - * Configs for SMU Sytem Fan control loop + * Configs for SMU System Fan control loop */ static struct wf_smu_sys_fans_param wf_smu_sys_all_params[] = { /* Model ID 2 */ diff --git a/drivers/media/dvb/dvb-usb/friio-fe.c b/drivers/media/dvb/dvb-usb/friio-fe.c index d14bd227b502..93c21ddd0b77 100644 --- a/drivers/media/dvb/dvb-usb/friio-fe.c +++ b/drivers/media/dvb/dvb-usb/friio-fe.c @@ -300,7 +300,7 @@ static int jdvbt90502_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { /** - * NOTE: ignore all the paramters except frequency. + * NOTE: ignore all the parameters except frequency. * others should be fixed to the proper value for ISDB-T, * but don't check here. */ diff --git a/drivers/message/i2o/i2o_config.c b/drivers/message/i2o/i2o_config.c index 11073fa3d9f4..d33693c13368 100644 --- a/drivers/message/i2o/i2o_config.c +++ b/drivers/message/i2o/i2o_config.c @@ -314,22 +314,22 @@ static int i2o_cfg_swul(unsigned long arg) int ret = 0; if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer))) - goto return_fault; + return -EFAULT; if (get_user(swlen, kxfer.swlen) < 0) - goto return_fault; + return -EFAULT; if (get_user(maxfrag, kxfer.maxfrag) < 0) - goto return_fault; + return -EFAULT; if (get_user(curfrag, kxfer.curfrag) < 0) - goto return_fault; + return -EFAULT; if (curfrag == maxfrag) fragsize = swlen - (maxfrag - 1) * 8192; if (!kxfer.buf) - goto return_fault; + return -EFAULT; c = i2o_find_iop(kxfer.iop); if (!c) @@ -373,12 +373,8 @@ static int i2o_cfg_swul(unsigned long arg) i2o_dma_free(&c->pdev->dev, &buffer); - return_ret: return ret; - return_fault: - ret = -EFAULT; - goto return_ret; -}; +} static int i2o_cfg_swdel(unsigned long arg) { diff --git a/drivers/misc/eeprom/eeprom.c b/drivers/misc/eeprom/eeprom.c index f939ebc2507c..e306a8cd2f96 100644 --- a/drivers/misc/eeprom/eeprom.c +++ b/drivers/misc/eeprom/eeprom.c @@ -1,24 +1,20 @@ /* - Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and - Philip Edelbrock <phil@netroedge.com> - Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> - Copyright (C) 2003 IBM Corp. - Copyright (C) 2004 Jean Delvare <khali@linux-fr.org> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ + * Copyright (C) 1998, 1999 Frodo Looijaard <frodol@dds.nl> and + * Philip Edelbrock <phil@netroedge.com> + * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com> + * Copyright (C) 2003 IBM Corp. + * Copyright (C) 2004 Jean Delvare <khali@linux-fr.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ #include <linux/kernel.h> #include <linux/init.h> diff --git a/drivers/misc/eeprom/eeprom_93cx6.c b/drivers/misc/eeprom/eeprom_93cx6.c index 15b1780025c8..7b33de95c4bf 100644 --- a/drivers/misc/eeprom/eeprom_93cx6.c +++ b/drivers/misc/eeprom/eeprom_93cx6.c @@ -1,27 +1,20 @@ /* - Copyright (C) 2004 - 2006 rt2x00 SourceForge Project - <http://rt2x00.serialmonkey.com> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the - Free Software Foundation, Inc., - 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* - Module: eeprom_93cx6 - Abstract: EEPROM reader routines for 93cx6 chipsets. - Supported chipsets: 93c46 & 93c66. + * Copyright (C) 2004 - 2006 rt2x00 SourceForge Project + * <http://rt2x00.serialmonkey.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Module: eeprom_93cx6 + * Abstract: EEPROM reader routines for 93cx6 chipsets. + * Supported chipsets: 93c46 & 93c66. */ #include <linux/kernel.h> diff --git a/drivers/misc/eeprom/max6875.c b/drivers/misc/eeprom/max6875.c index 5a6b2bce8ad5..fe2909278507 100644 --- a/drivers/misc/eeprom/max6875.c +++ b/drivers/misc/eeprom/max6875.c @@ -1,30 +1,30 @@ /* - max6875.c - driver for MAX6874/MAX6875 - - Copyright (C) 2005 Ben Gardner <bgardner@wabtec.com> - - Based on eeprom.c - - The MAX6875 has a bank of registers and two banks of EEPROM. - Address ranges are defined as follows: - * 0x0000 - 0x0046 = configuration registers - * 0x8000 - 0x8046 = configuration EEPROM - * 0x8100 - 0x82FF = user EEPROM - - This driver makes the user EEPROM available for read. - - The registers & config EEPROM should be accessed via i2c-dev. - - The MAX6875 ignores the lowest address bit, so each chip responds to - two addresses - 0x50/0x51 and 0x52/0x53. - - Note that the MAX6875 uses i2c_smbus_write_byte_data() to set the read - address, so this driver is destructive if loaded for the wrong EEPROM chip. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; version 2 of the License. -*/ + * max6875.c - driver for MAX6874/MAX6875 + * + * Copyright (C) 2005 Ben Gardner <bgardner@wabtec.com> + * + * Based on eeprom.c + * + * The MAX6875 has a bank of registers and two banks of EEPROM. + * Address ranges are defined as follows: + * * 0x0000 - 0x0046 = configuration registers + * * 0x8000 - 0x8046 = configuration EEPROM + * * 0x8100 - 0x82FF = user EEPROM + * + * This driver makes the user EEPROM available for read. + * + * The registers & config EEPROM should be accessed via i2c-dev. + * + * The MAX6875 ignores the lowest address bit, so each chip responds to + * two addresses - 0x50/0x51 and 0x52/0x53. + * + * Note that the MAX6875 uses i2c_smbus_write_byte_data() to set the read + * address, so this driver is destructive if loaded for the wrong EEPROM chip. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + */ #include <linux/kernel.h> #include <linux/init.h> diff --git a/drivers/misc/vmware_balloon.c b/drivers/misc/vmware_balloon.c index e7161c4e3798..db9cd0240c6f 100644 --- a/drivers/misc/vmware_balloon.c +++ b/drivers/misc/vmware_balloon.c @@ -41,7 +41,7 @@ #include <linux/workqueue.h> #include <linux/debugfs.h> #include <linux/seq_file.h> -#include <asm/vmware.h> +#include <asm/hypervisor.h> MODULE_AUTHOR("VMware, Inc."); MODULE_DESCRIPTION("VMware Memory Control (Balloon) Driver"); @@ -767,7 +767,7 @@ static int __init vmballoon_init(void) * Check if we are running on VMware's hypervisor and bail out * if we are not. */ - if (!vmware_platform()) + if (x86_hyper != &x86_hyper_vmware) return -ENODEV; vmballoon_wq = create_freezeable_workqueue("vmmemctl"); diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c index a6dd7da37357..336d9f553f3e 100644 --- a/drivers/mmc/host/at91_mci.c +++ b/drivers/mmc/host/at91_mci.c @@ -314,8 +314,8 @@ static void at91_mci_post_dma_read(struct at91mci_host *host) dmabuf = (unsigned *)tmpv; } + flush_kernel_dcache_page(sg_page(sg)); kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ); - dmac_flush_range((void *)sgbuffer, ((void *)sgbuffer) + amount); data->bytes_xfered += amount; if (size == 0) break; diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 84c103a7ee13..ff115d920888 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -55,14 +55,16 @@ static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired) host->cclk = host->mclk / (2 * (clk + 1)); } if (host->hw_designer == AMBA_VENDOR_ST) - clk |= MCI_FCEN; /* Bug fix in ST IP block */ + clk |= MCI_ST_FCEN; /* Bug fix in ST IP block */ clk |= MCI_CLK_ENABLE; /* This hasn't proven to be worthwhile */ /* clk |= MCI_CLK_PWRSAVE; */ } if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_4) - clk |= MCI_WIDE_BUS; + clk |= MCI_4BIT_BUS; + if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_8) + clk |= MCI_ST_8BIT_BUS; writel(clk, host->base + MMCICLOCK); } @@ -629,7 +631,18 @@ static int __devinit mmci_probe(struct amba_device *dev, struct amba_id *id) mmc->ops = &mmci_ops; mmc->f_min = (host->mclk + 511) / 512; - mmc->f_max = min(host->mclk, fmax); + /* + * If the platform data supplies a maximum operating + * frequency, this takes precedence. Else, we fall back + * to using the module parameter, which has a (low) + * default value in case it is not specified. Either + * value must not exceed the clock rate into the block, + * of course. + */ + if (plat->f_max) + mmc->f_max = min(host->mclk, plat->f_max); + else + mmc->f_max = min(host->mclk, fmax); dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max); #ifdef CONFIG_REGULATOR diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index 1ceb9a90f59b..d77062e5e3af 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -25,9 +25,11 @@ #define MCI_CLK_ENABLE (1 << 8) #define MCI_CLK_PWRSAVE (1 << 9) #define MCI_CLK_BYPASS (1 << 10) -#define MCI_WIDE_BUS (1 << 11) +#define MCI_4BIT_BUS (1 << 11) +/* 8bit wide buses supported in ST Micro versions */ +#define MCI_ST_8BIT_BUS (1 << 12) /* HW flow control on the ST Micro version */ -#define MCI_FCEN (1 << 13) +#define MCI_ST_FCEN (1 << 13) #define MMCIARGUMENT 0x008 #define MMCICOMMAND 0x00c diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c index 0ed48959b590..e4f00e70a749 100644 --- a/drivers/mmc/host/pxamci.c +++ b/drivers/mmc/host/pxamci.c @@ -544,7 +544,7 @@ static irqreturn_t pxamci_detect_irq(int irq, void *devid) { struct pxamci_host *host = mmc_priv(devid); - mmc_detect_change(devid, host->pdata->detect_delay); + mmc_detect_change(devid, msecs_to_jiffies(host->pdata->detect_delay_ms)); return IRQ_HANDLED; } diff --git a/drivers/mtd/maps/pcmciamtd.c b/drivers/mtd/maps/pcmciamtd.c index 689d6a79ffc0..87b2b8ff331e 100644 --- a/drivers/mtd/maps/pcmciamtd.c +++ b/drivers/mtd/maps/pcmciamtd.c @@ -52,7 +52,6 @@ static const int debug = 0; struct pcmciamtd_dev { struct pcmcia_device *p_dev; - dev_node_t node; /* device node */ caddr_t win_base; /* ioremapped address of PCMCIA window */ unsigned int win_size; /* size of window */ unsigned int offset; /* offset into card the window currently points at */ @@ -647,9 +646,7 @@ static int pcmciamtd_config(struct pcmcia_device *link) pcmciamtd_release(link); return -ENODEV; } - snprintf(dev->node.dev_name, sizeof(dev->node.dev_name), "mtd%d", mtd->index); info("mtd%d: %s", mtd->index, mtd->name); - link->dev_node = &dev->node; return 0; failed: diff --git a/drivers/net/a2065.c b/drivers/net/a2065.c index ed5e9742be2c..a8f0512bad38 100644 --- a/drivers/net/a2065.c +++ b/drivers/net/a2065.c @@ -674,6 +674,7 @@ static struct zorro_device_id a2065_zorro_tbl[] __devinitdata = { { ZORRO_PROD_AMERISTAR_A2065 }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, a2065_zorro_tbl); static struct zorro_driver a2065_driver = { .name = "a2065", diff --git a/drivers/net/ariadne.c b/drivers/net/ariadne.c index fa1a2354f5f9..4b30a46486e2 100644 --- a/drivers/net/ariadne.c +++ b/drivers/net/ariadne.c @@ -145,6 +145,7 @@ static struct zorro_device_id ariadne_zorro_tbl[] __devinitdata = { { ZORRO_PROD_VILLAGE_TRONIC_ARIADNE }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, ariadne_zorro_tbl); static struct zorro_driver ariadne_driver = { .name = "ariadne", diff --git a/drivers/net/bnx2x_hsi.h b/drivers/net/bnx2x_hsi.h index 760069345b11..fd1f29e0317d 100644 --- a/drivers/net/bnx2x_hsi.h +++ b/drivers/net/bnx2x_hsi.h @@ -683,7 +683,7 @@ struct drv_func_mb { #define DRV_MSG_CODE_GET_MANUF_KEY 0x82000000 #define DRV_MSG_CODE_LOAD_L2B_PRAM 0x90000000 /* - * The optic module verification commands requris bootcode + * The optic module verification commands require bootcode * v5.0.6 or later */ #define DRV_MSG_CODE_VRFY_OPT_MDL 0xa0000000 diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index dbf81788bb40..d5d55c6a373f 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -2524,12 +2524,12 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) * excessive C-state transition latencies result in * dropped transactions. */ - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name, 55); + pm_qos_update_request( + adapter->netdev->pm_qos_req, 55); } else { - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name, - PM_QOS_DEFAULT_VALUE); + pm_qos_update_request( + adapter->netdev->pm_qos_req, + PM_QOS_DEFAULT_VALUE); } } @@ -2824,8 +2824,8 @@ int e1000e_up(struct e1000_adapter *adapter) /* DMA latency requirement to workaround early-receive/jumbo issue */ if (adapter->flags & FLAG_HAS_ERT) - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name, + adapter->netdev->pm_qos_req = + pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); /* hardware has been reset, we need to reload some things */ @@ -2887,9 +2887,11 @@ void e1000e_down(struct e1000_adapter *adapter) e1000_clean_tx_ring(adapter); e1000_clean_rx_ring(adapter); - if (adapter->flags & FLAG_HAS_ERT) - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name); + if (adapter->flags & FLAG_HAS_ERT) { + pm_qos_remove_request( + adapter->netdev->pm_qos_req); + adapter->netdev->pm_qos_req = NULL; + } /* * TODO: for power management, we could drop the link and diff --git a/drivers/net/hydra.c b/drivers/net/hydra.c index 24724b4ad709..07d8e5b634f3 100644 --- a/drivers/net/hydra.c +++ b/drivers/net/hydra.c @@ -71,6 +71,7 @@ static struct zorro_device_id hydra_zorro_tbl[] __devinitdata = { { ZORRO_PROD_HYDRA_SYSTEMS_AMIGANET }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, hydra_zorro_tbl); static struct zorro_driver hydra_driver = { .name = "hydra", diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c index 1b1edad1eb5e..f16e981812a9 100644 --- a/drivers/net/igbvf/netdev.c +++ b/drivers/net/igbvf/netdev.c @@ -48,6 +48,7 @@ #define DRV_VERSION "1.0.0-k0" char igbvf_driver_name[] = "igbvf"; const char igbvf_driver_version[] = DRV_VERSION; +struct pm_qos_request_list *igbvf_driver_pm_qos_req; static const char igbvf_driver_string[] = "Intel(R) Virtual Function Network Driver"; static const char igbvf_copyright[] = "Copyright (c) 2009 Intel Corporation."; @@ -2899,7 +2900,7 @@ static int __init igbvf_init_module(void) printk(KERN_INFO "%s\n", igbvf_copyright); ret = pci_register_driver(&igbvf_driver); - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, igbvf_driver_name, + igbvf_driver_pm_qos_req = pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); return ret; @@ -2915,7 +2916,8 @@ module_init(igbvf_init_module); static void __exit igbvf_exit_module(void) { pci_unregister_driver(&igbvf_driver); - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, igbvf_driver_name); + pm_qos_remove_request(igbvf_driver_pm_qos_req); + igbvf_driver_pm_qos_req = NULL; } module_exit(igbvf_exit_module); diff --git a/drivers/net/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c index 757f87bb1db3..30b7cf70fbe6 100644 --- a/drivers/net/pcmcia/3c574_cs.c +++ b/drivers/net/pcmcia/3c574_cs.c @@ -93,7 +93,6 @@ earlier 3Com products. #include <pcmcia/cisreg.h> #include <pcmcia/ciscode.h> #include <pcmcia/ds.h> -#include <pcmcia/mem_op.h> #include <asm/uaccess.h> #include <asm/io.h> @@ -200,7 +199,6 @@ enum Window4 { /* Window 4: Xcvr/media bits. */ struct el3_private { struct pcmcia_device *p_dev; - dev_node_t node; u16 advertising, partner; /* NWay media advertisement */ unsigned char phys; /* MII device address */ unsigned int autoselect:1, default_media:3; /* Read from the EEPROM/Wn3_Config. */ @@ -283,8 +281,6 @@ static int tc574_probe(struct pcmcia_device *link) spin_lock_init(&lp->window_lock); link->io.NumPorts1 = 32; link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &el3_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -311,8 +307,7 @@ static void tc574_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "3c574_detach()\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); tc574_release(link); @@ -353,7 +348,7 @@ static int tc574_config(struct pcmcia_device *link) if (i != 0) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, el3_interrupt); if (ret) goto failed; @@ -361,7 +356,7 @@ static int tc574_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; ioaddr = dev->base_addr; @@ -446,17 +441,13 @@ static int tc574_config(struct pcmcia_device *link) } } - link->dev_node = &lp->node; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { printk(KERN_NOTICE "3c574_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(lp->node.dev_name, dev->name); - printk(KERN_INFO "%s: %s at io %#3lx, irq %d, " "hw_addr %pM.\n", dev->name, cardname, dev->base_addr, dev->irq, diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c index 091e0b00043e..5ab589d3b385 100644 --- a/drivers/net/pcmcia/3c589_cs.c +++ b/drivers/net/pcmcia/3c589_cs.c @@ -106,7 +106,6 @@ enum RxFilter { struct el3_private { struct pcmcia_device *p_dev; - dev_node_t node; /* For transceiver monitoring */ struct timer_list media; u16 media_status; @@ -194,8 +193,7 @@ static int tc589_probe(struct pcmcia_device *link) spin_lock_init(&lp->lock); link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &el3_interrupt; + link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -223,8 +221,7 @@ static void tc589_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "3c589_detach\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); tc589_release(link); @@ -242,7 +239,6 @@ static void tc589_detach(struct pcmcia_device *link) static int tc589_config(struct pcmcia_device *link) { struct net_device *dev = link->priv; - struct el3_private *lp = netdev_priv(dev); __be16 *phys_addr; int ret, i, j, multi = 0, fifo; unsigned int ioaddr; @@ -271,7 +267,7 @@ static int tc589_config(struct pcmcia_device *link) if (i != 0) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, el3_interrupt); if (ret) goto failed; @@ -279,7 +275,7 @@ static int tc589_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; ioaddr = dev->base_addr; EL3WINDOW(0); @@ -313,17 +309,13 @@ static int tc589_config(struct pcmcia_device *link) else printk(KERN_ERR "3c589_cs: invalid if_port requested\n"); - link->dev_node = &lp->node; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { printk(KERN_ERR "3c589_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(lp->node.dev_name, dev->name); - printk(KERN_INFO "%s: 3Com 3c%s, io %#3lx, irq %d, " "hw_addr %pM\n", dev->name, (multi ? "562" : "589"), dev->base_addr, dev->irq, diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index 9f3d593f14ed..59f6fa3c9ddc 100644 --- a/drivers/net/pcmcia/axnet_cs.c +++ b/drivers/net/pcmcia/axnet_cs.c @@ -113,7 +113,6 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id); typedef struct axnet_dev_t { struct pcmcia_device *p_dev; - dev_node_t node; caddr_t base; struct timer_list watchdog; int stale, fast_poll; @@ -168,7 +167,6 @@ static int axnet_probe(struct pcmcia_device *link) info = PRIV(dev); info->p_dev = link; link->priv = dev; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -195,8 +193,7 @@ static void axnet_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "axnet_detach(0x%p)\n", link); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); axnet_release(link); @@ -265,12 +262,9 @@ static int try_io_port(struct pcmcia_device *link) int j, ret; if (link->io.NumPorts1 == 32) { link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; - if (link->io.NumPorts2 > 0) { - /* for master/slave multifunction cards */ + /* for master/slave multifunction cards */ + if (link->io.NumPorts2 > 0) link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = - IRQ_TYPE_DYNAMIC_SHARING; - } } else { /* This should be two 16-port windows */ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; @@ -336,8 +330,7 @@ static int axnet_config(struct pcmcia_device *link) if (ret != 0) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; if (link->io.NumPorts2 == 8) { @@ -349,7 +342,7 @@ static int axnet_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (!get_prom(link)) { @@ -397,17 +390,13 @@ static int axnet_config(struct pcmcia_device *link) } info->phy_id = (i < 32) ? i : -1; - link->dev_node = &info->node; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { printk(KERN_NOTICE "axnet_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(info->node.dev_name, dev->name); - printk(KERN_INFO "%s: Asix AX88%d90: io %#3lx, irq %d, " "hw_addr %pM\n", dev->name, ((info->flags & IS_AX88790) ? 7 : 1), diff --git a/drivers/net/pcmcia/com20020_cs.c b/drivers/net/pcmcia/com20020_cs.c index 21d9c9d815d1..5643f94541bc 100644 --- a/drivers/net/pcmcia/com20020_cs.c +++ b/drivers/net/pcmcia/com20020_cs.c @@ -122,7 +122,6 @@ static void com20020_detach(struct pcmcia_device *p_dev); typedef struct com20020_dev_t { struct net_device *dev; - dev_node_t node; } com20020_dev_t; /*====================================================================== @@ -163,7 +162,6 @@ static int com20020_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.NumPorts1 = 16; p_dev->io.IOAddrLines = 16; - p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE; p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -196,18 +194,16 @@ static void com20020_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "com20020_detach\n"); - if (link->dev_node) { - dev_dbg(&link->dev, "unregister...\n"); + dev_dbg(&link->dev, "unregister...\n"); - unregister_netdev(dev); + unregister_netdev(dev); - /* - * this is necessary because we register our IRQ separately - * from card services. - */ - if (dev->irq) + /* + * this is necessary because we register our IRQ separately + * from card services. + */ + if (dev->irq) free_irq(dev->irq, dev); - } com20020_release(link); @@ -275,15 +271,14 @@ static int com20020_config(struct pcmcia_device *link) dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); dev_dbg(&link->dev, "request IRQ %d\n", - link->irq.AssignedIRQ); - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) + link->irq); + if (!link->irq) { dev_dbg(&link->dev, "requestIRQ failed totally!\n"); goto failed; } - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -299,7 +294,6 @@ static int com20020_config(struct pcmcia_device *link) lp->card_name = "PCMCIA COM20020"; lp->card_flags = ARC_CAN_10MBIT; /* pretend all of them can 10Mbit */ - link->dev_node = &info->node; SET_NETDEV_DEV(dev, &link->dev); i = com20020_found(dev, 0); /* calls register_netdev */ @@ -307,12 +301,9 @@ static int com20020_config(struct pcmcia_device *link) if (i != 0) { dev_printk(KERN_NOTICE, &link->dev, "com20020_cs: com20020_found() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(info->node.dev_name, dev->name); - dev_dbg(&link->dev,KERN_INFO "%s: port %#3lx, irq %d\n", dev->name, dev->base_addr, dev->irq); return 0; diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c index b9dc80b9d04a..6580d78397d1 100644 --- a/drivers/net/pcmcia/fmvj18x_cs.c +++ b/drivers/net/pcmcia/fmvj18x_cs.c @@ -110,7 +110,6 @@ typedef enum { MBH10302, MBH10304, TDK, CONTEC, LA501, UNGERMANN, */ typedef struct local_info_t { struct pcmcia_device *p_dev; - dev_node_t node; long open_time; uint tx_started:1; uint tx_queue; @@ -254,10 +253,6 @@ static int fmvj18x_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 5; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = fjn_interrupt; - /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -278,8 +273,7 @@ static void fmvj18x_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "fmvj18x_detach\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); fmvj18x_release(link); @@ -425,8 +419,6 @@ static int fmvj18x_config(struct pcmcia_device *link) } if (link->io.NumPorts2 != 0) { - link->irq.Attributes = - IRQ_TYPE_DYNAMIC_SHARING; ret = mfc_try_io_port(link); if (ret != 0) goto failed; } else if (cardtype == UNGERMANN) { @@ -437,14 +429,14 @@ static int fmvj18x_config(struct pcmcia_device *link) if (ret) goto failed; } - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, fjn_interrupt); if (ret) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (link->io.BasePort2 != 0) { @@ -529,17 +521,13 @@ static int fmvj18x_config(struct pcmcia_device *link) } lp->cardtype = cardtype; - link->dev_node = &lp->node; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { printk(KERN_NOTICE "fmvj18x_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(lp->node.dev_name, dev->name); - /* print current configuration */ printk(KERN_INFO "%s: %s, sram %s, port %#3lx, irq %d, " "hw_addr %pM\n", diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c index 37f4a6fdc3ef..2e42d80f8cae 100644 --- a/drivers/net/pcmcia/ibmtr_cs.c +++ b/drivers/net/pcmcia/ibmtr_cs.c @@ -104,7 +104,6 @@ static void ibmtr_detach(struct pcmcia_device *p_dev); typedef struct ibmtr_dev_t { struct pcmcia_device *p_dev; struct net_device *dev; - dev_node_t node; window_handle_t sram_win_handle; struct tok_info *ti; } ibmtr_dev_t; @@ -156,8 +155,6 @@ static int __devinit ibmtr_attach(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 4; link->io.IOAddrLines = 16; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = ibmtr_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -192,8 +189,7 @@ static void ibmtr_detach(struct pcmcia_device *link) */ ti->sram_phys |= 1; - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); del_timer_sync(&(ti->tr_timer)); @@ -238,11 +234,11 @@ static int __devinit ibmtr_config(struct pcmcia_device *link) } dev->base_addr = link->io.BasePort1; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; - ti->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; + ti->irq = link->irq; ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq); /* Allocate the MMIO memory window */ @@ -291,18 +287,14 @@ static int __devinit ibmtr_config(struct pcmcia_device *link) Adapters Technical Reference" SC30-3585 for this info. */ ibmtr_hw_setup(dev, mmiobase); - link->dev_node = &info->node; SET_NETDEV_DEV(dev, &link->dev); i = ibmtr_probe_card(dev); if (i != 0) { printk(KERN_NOTICE "ibmtr_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(info->node.dev_name, dev->name); - printk(KERN_INFO "%s: port %#3lx, irq %d, mmio %#5lx, sram %#5lx, hwaddr=%pM\n", dev->name, dev->base_addr, dev->irq, diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c index c717b143f11a..d8a3b3cf246e 100644 --- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@ -363,7 +363,6 @@ typedef struct _mace_statistics { typedef struct _mace_private { struct pcmcia_device *p_dev; - dev_node_t node; struct net_device_stats linux_stats; /* Linux statistics counters */ mace_statistics mace_stats; /* MACE chip statistics counters */ @@ -463,8 +462,6 @@ static int nmclan_probe(struct pcmcia_device *link) link->io.NumPorts1 = 32; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 5; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = mace_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -493,8 +490,7 @@ static void nmclan_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "nmclan_detach\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); nmclan_release(link); @@ -652,14 +648,14 @@ static int nmclan_config(struct pcmcia_device *link) ret = pcmcia_request_io(link, &link->io); if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_exclusive_irq(link, mace_interrupt); if (ret) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; ioaddr = dev->base_addr; @@ -698,18 +694,14 @@ static int nmclan_config(struct pcmcia_device *link) else printk(KERN_NOTICE "nmclan_cs: invalid if_port requested\n"); - link->dev_node = &lp->node; SET_NETDEV_DEV(dev, &link->dev); i = register_netdev(dev); if (i != 0) { printk(KERN_NOTICE "nmclan_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(lp->node.dev_name, dev->name); - printk(KERN_INFO "%s: nmclan: port %#3lx, irq %d, %s port," " hw_addr %pM\n", dev->name, dev->base_addr, dev->irq, if_names[dev->if_port], diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index 4c0368de1815..6f77a768ba88 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -208,7 +208,6 @@ static hw_info_t dl10022_info = { 0, 0, 0, 0, IS_DL10022|HAS_MII }; typedef struct pcnet_dev_t { struct pcmcia_device *p_dev; - dev_node_t node; u_int flags; void __iomem *base; struct timer_list watchdog; @@ -264,7 +263,6 @@ static int pcnet_probe(struct pcmcia_device *link) info->p_dev = link; link->priv = dev; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -288,8 +286,7 @@ static void pcnet_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "pcnet_detach\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); pcnet_release(link); @@ -488,8 +485,6 @@ static int try_io_port(struct pcmcia_device *link) if (link->io.NumPorts2 > 0) { /* for master/slave multifunction cards */ link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = - IRQ_TYPE_DYNAMIC_SHARING; } } else { /* This should be two 16-port windows */ @@ -559,8 +554,7 @@ static int pcnet_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; if (link->io.NumPorts2 == 8) { @@ -574,7 +568,7 @@ static int pcnet_config(struct pcmcia_device *link) ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (info->flags & HAS_MISC_REG) { if ((if_port == 1) || (if_port == 2)) @@ -643,17 +637,13 @@ static int pcnet_config(struct pcmcia_device *link) if (info->flags & (IS_DL10019|IS_DL10022)) mii_phy_probe(dev); - link->dev_node = &info->node; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { printk(KERN_NOTICE "pcnet_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto failed; } - strcpy(info->node.dev_name, dev->name); - if (info->flags & (IS_DL10019|IS_DL10022)) { u_char id = inb(dev->base_addr + 0x1a); printk(KERN_INFO "%s: NE2000 (DL100%d rev %02x): ", diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index ccc553782a0d..59796e7d09c4 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -103,7 +103,6 @@ struct smc_private { u_short manfid; u_short cardid; - dev_node_t node; struct sk_buff *saved_skb; int packets_waiting; void __iomem *base; @@ -323,14 +322,11 @@ static int smc91c92_probe(struct pcmcia_device *link) return -ENOMEM; smc = netdev_priv(dev); smc->p_dev = link; - link->priv = dev; spin_lock_init(&smc->lock); link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 4; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &smc_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -363,8 +359,7 @@ static void smc91c92_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "smc91c92_detach\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); smc91c92_release(link); @@ -453,7 +448,6 @@ static int mhz_mfc_config(struct pcmcia_device *link) link->conf.Attributes |= CONF_ENABLE_SPKR; link->conf.Status = CCSR_AUDIO_ENA; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->io.IOAddrLines = 16; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts2 = 8; @@ -652,7 +646,6 @@ static int osi_config(struct pcmcia_device *link) link->conf.Attributes |= CONF_ENABLE_SPKR; link->conf.Status = CCSR_AUDIO_ENA; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->io.NumPorts1 = 64; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts2 = 8; @@ -877,7 +870,7 @@ static int smc91c92_config(struct pcmcia_device *link) if (i) goto config_failed; - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, smc_interrupt); if (i) goto config_failed; i = pcmcia_request_configuration(link, &link->conf); @@ -887,7 +880,7 @@ static int smc91c92_config(struct pcmcia_device *link) if (smc->manfid == MANFID_MOTOROLA) mot_config(link); - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; if ((if_port >= 0) && (if_port <= 2)) dev->if_port = if_port; @@ -960,17 +953,13 @@ static int smc91c92_config(struct pcmcia_device *link) SMC_SELECT_BANK(0); } - link->dev_node = &smc->node; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev) != 0) { printk(KERN_ERR "smc91c92_cs: register_netdev() failed\n"); - link->dev_node = NULL; goto config_undo; } - strcpy(smc->node.dev_name, dev->name); - printk(KERN_INFO "%s: smc91c%s rev %d: io %#3lx, irq %d, " "hw_addr %pM\n", dev->name, name, (rev & 0x0f), dev->base_addr, dev->irq, diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c index 4d1802e457be..5e6b62ba8887 100644 --- a/drivers/net/pcmcia/xirc2ps_cs.c +++ b/drivers/net/pcmcia/xirc2ps_cs.c @@ -297,31 +297,9 @@ static void xirc2ps_detach(struct pcmcia_device *p_dev); static irqreturn_t xirc2ps_interrupt(int irq, void *dev_id); -/**************** - * A linked list of "instances" of the device. Each actual - * PCMCIA card corresponds to one device instance, and is described - * by one struct pcmcia_device structure (defined in ds.h). - * - * You may not want to use a linked list for this -- for example, the - * memory card driver uses an array of struct pcmcia_device pointers, where minor - * device numbers are used to derive the corresponding array index. - */ - -/**************** - * A driver needs to provide a dev_node_t structure for each device - * on a card. In some cases, there is only one device per card (for - * example, ethernet cards, modems). In other cases, there may be - * many actual or logical devices (SCSI adapters, memory cards with - * multiple partitions). The dev_node_t structures need to be kept - * in a linked list starting at the 'dev' field of a struct pcmcia_device - * structure. We allocate them in the card's private data structure, - * because they generally can't be allocated dynamically. - */ - typedef struct local_info_t { struct net_device *dev; struct pcmcia_device *p_dev; - dev_node_t node; int card_type; int probe_port; @@ -555,7 +533,6 @@ xirc2ps_probe(struct pcmcia_device *link) link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; - link->irq.Handler = xirc2ps_interrupt; /* Fill in card specific entries */ dev->netdev_ops = &netdev_ops; @@ -580,8 +557,7 @@ xirc2ps_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "detach\n"); - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); xirc2ps_release(link); @@ -841,7 +817,6 @@ xirc2ps_config(struct pcmcia_device * link) link->conf.Attributes |= CONF_ENABLE_SPKR; link->conf.Status |= CCSR_AUDIO_ENA; } - link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING; link->io.NumPorts2 = 8; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; if (local->dingo) { @@ -866,7 +841,6 @@ xirc2ps_config(struct pcmcia_device * link) } printk(KNOT_XIRC "no ports available\n"); } else { - link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING; link->io.NumPorts1 = 16; for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { link->io.BasePort1 = ioaddr; @@ -885,7 +859,7 @@ xirc2ps_config(struct pcmcia_device * link) * Now allocate an interrupt line. Note that this does not * actually assign a handler to the interrupt. */ - if ((err=pcmcia_request_irq(link, &link->irq))) + if ((err=pcmcia_request_irq(link, xirc2ps_interrupt))) goto config_error; /**************** @@ -982,23 +956,19 @@ xirc2ps_config(struct pcmcia_device * link) printk(KNOT_XIRC "invalid if_port requested\n"); /* we can now register the device with the net subsystem */ - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (local->dingo) do_reset(dev, 1); /* a kludge to make the cem56 work */ - link->dev_node = &local->node; SET_NETDEV_DEV(dev, &link->dev); if ((err=register_netdev(dev))) { printk(KNOT_XIRC "register_netdev() failed\n"); - link->dev_node = NULL; goto config_error; } - strcpy(local->node.dev_name, dev->name); - /* give some infos about the hardware */ printk(KERN_INFO "%s: %s: port %#3lx, irq %d, hwaddr %pM\n", dev->name, local->manf_str,(u_long)dev->base_addr, (int)dev->irq, diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c index f0be507e5324..369a8016b1ff 100644 --- a/drivers/net/ps3_gelic_wireless.c +++ b/drivers/net/ps3_gelic_wireless.c @@ -96,7 +96,7 @@ static inline int precise_ie(void) * post_eurus_cmd helpers */ struct eurus_cmd_arg_info { - int pre_arg; /* command requres arg1, arg2 at POST COMMAND */ + int pre_arg; /* command requires arg1, arg2 at POST COMMAND */ int post_arg; /* command requires arg1, arg2 at GET_RESULT */ }; diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c index cbf520d38eac..ffbaa608e002 100644 --- a/drivers/net/smsc911x.c +++ b/drivers/net/smsc911x.c @@ -736,7 +736,7 @@ static void smsc911x_phy_adjust_link(struct net_device *dev) SMSC_TRACE(HW, "configuring for carrier OK"); if ((pdata->gpio_orig_setting & GPIO_CFG_LED1_EN_) && (!pdata->using_extphy)) { - /* Restore orginal GPIO configuration */ + /* Restore original GPIO configuration */ pdata->gpio_setting = pdata->gpio_orig_setting; smsc911x_reg_write(pdata, GPIO_CFG, pdata->gpio_setting); @@ -750,7 +750,7 @@ static void smsc911x_phy_adjust_link(struct net_device *dev) if ((pdata->gpio_setting & GPIO_CFG_LED1_EN_) && (!pdata->using_extphy)) { /* Force 10/100 LED off, after saving - * orginal GPIO configuration */ + * original GPIO configuration */ pdata->gpio_orig_setting = pdata->gpio_setting; pdata->gpio_setting &= ~GPIO_CFG_LED1_EN_; diff --git a/drivers/net/wireless/airo_cs.c b/drivers/net/wireless/airo_cs.c index f6036fb42319..33bdc6a84e81 100644 --- a/drivers/net/wireless/airo_cs.c +++ b/drivers/net/wireless/airo_cs.c @@ -75,42 +75,7 @@ static void airo_release(struct pcmcia_device *link); static void airo_detach(struct pcmcia_device *p_dev); -/* - You'll also need to prototype all the functions that will actually - be used to talk to your device. See 'pcmem_cs' for a good example - of a fully self-sufficient driver; the other drivers rely more or - less on other parts of the kernel. -*/ - -/* - A linked list of "instances" of the aironet device. Each actual - PCMCIA card corresponds to one device instance, and is described - by one struct pcmcia_device structure (defined in ds.h). - - You may not want to use a linked list for this -- for example, the - memory card driver uses an array of struct pcmcia_device pointers, - where minor device numbers are used to derive the corresponding - array index. -*/ - -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally shouldn't be allocated dynamically. - - In this case, we also provide a flag to indicate if a device is - "stopped" due to a power management event, or card ejection. The - device IO routines can use a flag like this to throttle IO to a - card that is not ready to accept it. -*/ - typedef struct local_info_t { - dev_node_t node; struct net_device *eth_dev; } local_info_t; @@ -132,10 +97,6 @@ static int airo_probe(struct pcmcia_device *p_dev) dev_dbg(&p_dev->dev, "airo_attach()\n"); - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -212,9 +173,7 @@ static int airo_cs_config_check(struct pcmcia_device *p_dev, else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -300,16 +259,8 @@ static int airo_config(struct pcmcia_device *link) if (ret) goto failed; - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -320,26 +271,17 @@ static int airo_config(struct pcmcia_device *link) if (ret) goto failed; ((local_info_t *)link->priv)->eth_dev = - init_airo_card(link->irq.AssignedIRQ, + init_airo_card(link->irq, link->io.BasePort1, 1, &link->dev); if (!((local_info_t *)link->priv)->eth_dev) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev_node. - */ - strcpy(dev->node.dev_name, ((local_info_t *)link->priv)->eth_dev->name); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x: ", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x: ", + link->conf.ConfigIndex); if (link->conf.Vpp) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); - if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c index 32407911842f..c2746fc7f2be 100644 --- a/drivers/net/wireless/atmel_cs.c +++ b/drivers/net/wireless/atmel_cs.c @@ -85,41 +85,7 @@ static void atmel_release(struct pcmcia_device *link); static void atmel_detach(struct pcmcia_device *p_dev); -/* - You'll also need to prototype all the functions that will actually - be used to talk to your device. See 'pcmem_cs' for a good example - of a fully self-sufficient driver; the other drivers rely more or - less on other parts of the kernel. -*/ - -/* - A linked list of "instances" of the atmelnet device. Each actual - PCMCIA card corresponds to one device instance, and is described - by one struct pcmcia_device structure (defined in ds.h). - - You may not want to use a linked list for this -- for example, the - memory card driver uses an array of struct pcmcia_device pointers, where minor - device numbers are used to derive the corresponding array index. -*/ - -/* - A driver needs to provide a dev_node_t structure for each device - on a card. In some cases, there is only one device per card (for - example, ethernet cards, modems). In other cases, there may be - many actual or logical devices (SCSI adapters, memory cards with - multiple partitions). The dev_node_t structures need to be kept - in a linked list starting at the 'dev' field of a struct pcmcia_device - structure. We allocate them in the card's private data structure, - because they generally shouldn't be allocated dynamically. - - In this case, we also provide a flag to indicate if a device is - "stopped" due to a power management event, or card ejection. The - device IO routines can use a flag like this to throttle IO to a - card that is not ready to accept it. -*/ - typedef struct local_info_t { - dev_node_t node; struct net_device *eth_dev; } local_info_t; @@ -141,10 +107,6 @@ static int atmel_probe(struct pcmcia_device *p_dev) dev_dbg(&p_dev->dev, "atmel_attach()\n"); - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -226,9 +188,7 @@ static int atmel_config_check(struct pcmcia_device *p_dev, else if (dflt->vpp1.present & (1<<CISTPL_POWER_VNOM)) p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -278,15 +238,9 @@ static int atmel_config(struct pcmcia_device *link) if (pcmcia_loop_config(link, atmel_config_check, NULL)) goto failed; - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; + if (!link->irq) { + dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); + goto failed; } /* @@ -298,14 +252,8 @@ static int atmel_config(struct pcmcia_device *link) if (ret) goto failed; - if (link->irq.AssignedIRQ == 0) { - printk(KERN_ALERT - "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); - goto failed; - } - ((local_info_t*)link->priv)->eth_dev = - init_atmel_card(link->irq.AssignedIRQ, + init_atmel_card(link->irq, link->io.BasePort1, did ? did->driver_info : ATMEL_FW_TYPE_NONE, &link->dev, @@ -315,14 +263,6 @@ static int atmel_config(struct pcmcia_device *link) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev_node. - */ - strcpy(dev->node.dev_name, ((local_info_t*)link->priv)->eth_dev->name ); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - return 0; failed: diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c index 609e7051e018..0e99b634267c 100644 --- a/drivers/net/wireless/b43/pcmcia.c +++ b/drivers/net/wireless/b43/pcmcia.c @@ -98,10 +98,7 @@ static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev) if (res != 0) goto err_disable; - dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - dev->irq.Handler = NULL; /* The handler is registered later. */ - res = pcmcia_request_irq(dev, &dev->irq); - if (res != 0) + if (!dev->irq) goto err_disable; res = pcmcia_request_configuration(dev, &dev->conf); diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c index a36501dbbe02..db72461c486b 100644 --- a/drivers/net/wireless/hostap/hostap_cs.c +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -39,7 +39,6 @@ MODULE_PARM_DESC(ignore_cis_vcc, "Ignore broken CIS VCC entry"); /* struct local_info::hw_priv */ struct hostap_cs_priv { - dev_node_t node; struct pcmcia_device *link; int sandisk_connectplus; }; @@ -556,15 +555,7 @@ static int prism2_config_check(struct pcmcia_device *p_dev, p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; - else if (!(p_dev->conf.Attributes & CONF_ENABLE_IRQ)) { - /* At least Compaq WL200 does not have IRQInfo1 set, - * but it does not work without interrupts.. */ - printk(KERN_WARNING "Config has no IRQ info, but trying to " - "enable IRQ anyway..\n"); - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; - } + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d " @@ -633,21 +624,10 @@ static int prism2_config(struct pcmcia_device *link) local = iface->local; local->hw_priv = hw_priv; hw_priv->link = link; - strcpy(hw_priv->node.dev_name, dev->name); - link->dev_node = &hw_priv->node; - /* - * Allocate an interrupt line. Note that this does not assign a - * handler to the interrupt, unless the 'Handler' member of the - * irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = prism2_interrupt; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + ret = pcmcia_request_irq(link, prism2_interrupt); + if (ret) + goto failed; /* * This actually configures the PCMCIA socket -- setting up @@ -658,7 +638,7 @@ static int prism2_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; /* Finally, report what we've done */ @@ -668,7 +648,7 @@ static int prism2_config(struct pcmcia_device *link) printk(", Vpp %d.%d", link->conf.Vpp / 10, link->conf.Vpp % 10); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -682,11 +662,9 @@ static int prism2_config(struct pcmcia_device *link) sandisk_enable_wireless(dev); ret = prism2_hw_config(dev, 1); - if (!ret) { + if (!ret) ret = hostap_hw_ready(dev); - if (ret == 0 && local->ddev) - strcpy(hw_priv->node.dev_name, local->ddev->name); - } + return ret; failed: diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c index 9b72c45a7748..2b05fe5e994c 100644 --- a/drivers/net/wireless/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/ipw2x00/ipw2100.c @@ -174,6 +174,8 @@ that only one external action is invoked at a time. #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver" #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" +struct pm_qos_request_list *ipw2100_pm_qos_req; + /* Debugging stuff */ #ifdef CONFIG_IPW2100_DEBUG #define IPW2100_RX_DEBUG /* Reception debugging */ @@ -1739,7 +1741,7 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred) /* the ipw2100 hardware really doesn't want power management delays * longer than 175usec */ - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", 175); + pm_qos_update_request(ipw2100_pm_qos_req, 175); /* If the interrupt is enabled, turn it off... */ spin_lock_irqsave(&priv->low_lock, flags); @@ -1887,8 +1889,7 @@ static void ipw2100_down(struct ipw2100_priv *priv) ipw2100_disable_interrupts(priv); spin_unlock_irqrestore(&priv->low_lock, flags); - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", - PM_QOS_DEFAULT_VALUE); + pm_qos_update_request(ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE); /* We have to signal any supplicant if we are disassociating */ if (associated) @@ -6669,7 +6670,7 @@ static int __init ipw2100_init(void) if (ret) goto out; - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", + ipw2100_pm_qos_req = pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); #ifdef CONFIG_IPW2100_DEBUG ipw2100_debug_level = debug; @@ -6692,7 +6693,7 @@ static void __exit ipw2100_exit(void) &driver_attr_debug_level); #endif pci_unregister_driver(&ipw2100_pci_driver); - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100"); + pm_qos_remove_request(ipw2100_pm_qos_req); } module_init(ipw2100_init); diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 6d55439a7b97..08e4e3908003 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -777,7 +777,7 @@ static void if_cs_release(struct pcmcia_device *p_dev) lbs_deb_enter(LBS_DEB_CS); - free_irq(p_dev->irq.AssignedIRQ, card); + free_irq(p_dev->irq, card); pcmcia_disable_device(p_dev); if (card->iobase) ioport_unmap(card->iobase); @@ -807,8 +807,7 @@ static int if_cs_ioprobe(struct pcmcia_device *p_dev, p_dev->io.NumPorts1 = cfg->io.win[0].len; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ if (cfg->io.nwin != 1) { @@ -837,9 +836,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev) card->p_dev = p_dev; p_dev->priv = card; - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = NULL; - p_dev->conf.Attributes = 0; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -854,13 +850,8 @@ static int if_cs_probe(struct pcmcia_device *p_dev) * a handler to the interrupt, unless the 'Handler' member of * the irq structure is initialized. */ - if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(p_dev, &p_dev->irq); - if (ret) { - lbs_pr_err("error in pcmcia_request_irq\n"); - goto out1; - } - } + if (!p_dev->irq) + goto out1; /* Initialize io access */ card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1); @@ -883,7 +874,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev) /* Finally, report what we've done */ lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n", - p_dev->irq.AssignedIRQ, p_dev->io.BasePort1, + p_dev->irq, p_dev->io.BasePort1, p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1); /* @@ -940,7 +931,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev) priv->fw_ready = 1; /* Now actually get the IRQ */ - ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt, + ret = request_irq(p_dev->irq, if_cs_interrupt, IRQF_SHARED, DRV_NAME, card); if (ret) { lbs_pr_err("error in request_irq\n"); diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c index 1d4ada188eda..03056ab73032 100644 --- a/drivers/net/wireless/orinoco/orinoco_cs.c +++ b/drivers/net/wireless/orinoco/orinoco_cs.c @@ -50,7 +50,6 @@ MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket * struct orinoco_private */ struct orinoco_pccard { struct pcmcia_device *p_dev; - dev_node_t node; /* Used to handle hard reset */ /* yuck, we need this hack to work around the insanity of the @@ -119,10 +118,6 @@ orinoco_cs_probe(struct pcmcia_device *link) card->p_dev = link; link->priv = priv; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = orinoco_interrupt; - /* General socket configuration defaults can go here. In this * client, we assume very little, and rely on the CIS for * almost everything. In most clients, many details (i.e., @@ -144,8 +139,7 @@ static void orinoco_cs_detach(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; - if (link->dev_node) - orinoco_if_del(priv); + orinoco_if_del(priv); orinoco_cs_release(link); @@ -230,7 +224,6 @@ static int orinoco_cs_config(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; - struct orinoco_pccard *card = priv->card; hermes_t *hw = &priv->hw; int ret; void __iomem *mem; @@ -258,12 +251,7 @@ orinoco_cs_config(struct pcmcia_device *link) goto failed; } - /* - * Allocate an interrupt line. Note that this does not assign - * a handler to the interrupt, unless the 'Handler' member of - * the irq structure is initialized. - */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, orinoco_interrupt); if (ret) goto failed; @@ -285,9 +273,6 @@ orinoco_cs_config(struct pcmcia_device *link) if (ret) goto failed; - /* Ok, we have the configuration, prepare to register the netdev */ - card->node.major = card->node.minor = 0; - /* Initialise the main driver */ if (orinoco_init(priv) != 0) { printk(KERN_ERR PFX "orinoco_init() failed\n"); @@ -296,17 +281,11 @@ orinoco_cs_config(struct pcmcia_device *link) /* Register an interface with the stack */ if (orinoco_if_add(priv, link->io.BasePort1, - link->irq.AssignedIRQ) != 0) { + link->irq) != 0) { printk(KERN_ERR PFX "orinoco_if_add() failed\n"); goto failed; } - /* At this point, the dev_node_t structure(s) needs to be - * initialized and arranged in a linked list at link->dev_node. */ - strcpy(card->node.dev_name, priv->ndev->name); - link->dev_node = &card->node; /* link->dev_node being non-NULL is also - * used to indicate that the - * net_device has been registered */ return 0; failed: diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c index 59bda240fdc2..41b9ce425855 100644 --- a/drivers/net/wireless/orinoco/spectrum_cs.c +++ b/drivers/net/wireless/orinoco/spectrum_cs.c @@ -57,7 +57,6 @@ MODULE_PARM_DESC(ignore_cis_vcc, "Allow voltage mismatch between card and socket * struct orinoco_private */ struct orinoco_pccard { struct pcmcia_device *p_dev; - dev_node_t node; }; /********************************************************************/ @@ -193,10 +192,6 @@ spectrum_cs_probe(struct pcmcia_device *link) card->p_dev = link; link->priv = priv; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = orinoco_interrupt; - /* General socket configuration defaults can go here. In this * client, we assume very little, and rely on the CIS for * almost everything. In most clients, many details (i.e., @@ -218,8 +213,7 @@ static void spectrum_cs_detach(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; - if (link->dev_node) - orinoco_if_del(priv); + orinoco_if_del(priv); spectrum_cs_release(link); @@ -304,7 +298,6 @@ static int spectrum_cs_config(struct pcmcia_device *link) { struct orinoco_private *priv = link->priv; - struct orinoco_pccard *card = priv->card; hermes_t *hw = &priv->hw; int ret; void __iomem *mem; @@ -332,12 +325,7 @@ spectrum_cs_config(struct pcmcia_device *link) goto failed; } - /* - * Allocate an interrupt line. Note that this does not assign - * a handler to the interrupt, unless the 'Handler' member of - * the irq structure is initialized. - */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, orinoco_interrupt); if (ret) goto failed; @@ -359,9 +347,6 @@ spectrum_cs_config(struct pcmcia_device *link) if (ret) goto failed; - /* Ok, we have the configuration, prepare to register the netdev */ - card->node.major = card->node.minor = 0; - /* Reset card */ if (spectrum_cs_hard_reset(priv) != 0) goto failed; @@ -374,17 +359,11 @@ spectrum_cs_config(struct pcmcia_device *link) /* Register an interface with the stack */ if (orinoco_if_add(priv, link->io.BasePort1, - link->irq.AssignedIRQ) != 0) { + link->irq) != 0) { printk(KERN_ERR PFX "orinoco_if_add() failed\n"); goto failed; } - /* At this point, the dev_node_t structure(s) needs to be - * initialized and arranged in a linked list at link->dev_node. */ - strcpy(card->node.dev_name, priv->ndev->name); - link->dev_node = &card->node; /* link->dev_node being non-NULL is also - * used to indicate that the - * net_device has been registered */ return 0; failed: diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 11865ea21875..f7d2a34ca531 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -51,7 +51,6 @@ #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ds.h> -#include <pcmcia/mem_op.h> #include <linux/wireless.h> #include <net/iw_handler.h> @@ -321,10 +320,6 @@ static int ray_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 5; - /* Interrupt setup. For PCMCIA, driver takes what's given */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = &ray_interrupt; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -383,8 +378,7 @@ static void ray_detach(struct pcmcia_device *link) del_timer(&local->timer); if (link->priv) { - if (link->dev_node) - unregister_netdev(dev); + unregister_netdev(dev); free_netdev(dev); } dev_dbg(&link->dev, "ray_cs ray_detach ending\n"); @@ -417,10 +411,10 @@ static int ray_config(struct pcmcia_device *link) /* Now allocate an interrupt line. Note that this does not actually assign a handler to the interrupt. */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, ray_interrupt); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping. @@ -493,9 +487,6 @@ static int ray_config(struct pcmcia_device *link) return i; } - strcpy(local->node.dev_name, dev->name); - link->dev_node = &local->node; - printk(KERN_INFO "%s: RayLink, irq %d, hw_addr %pM\n", dev->name, dev->irq, dev->dev_addr); diff --git a/drivers/net/wireless/ray_cs.h b/drivers/net/wireless/ray_cs.h index 1e23b7f4cca7..9f01ddb19748 100644 --- a/drivers/net/wireless/ray_cs.h +++ b/drivers/net/wireless/ray_cs.h @@ -25,7 +25,6 @@ struct beacon_rx { typedef struct ray_dev_t { int card_status; int authentication_state; - dev_node_t node; window_handle_t amem_handle; /* handle to window for attribute memory */ window_handle_t rmem_handle; /* handle to window for rx buffer on card */ void __iomem *sram; /* pointer to beginning of shared RAM */ diff --git a/drivers/net/wireless/wl3501.h b/drivers/net/wireless/wl3501.h index 8bce1a550a22..8816e371fd0e 100644 --- a/drivers/net/wireless/wl3501.h +++ b/drivers/net/wireless/wl3501.h @@ -610,7 +610,6 @@ struct wl3501_card { struct iw_statistics wstats; struct iw_spy_data spy_data; struct iw_public_data wireless_data; - struct dev_node_t node; struct pcmcia_device *p_dev; }; #endif diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c index 7b9621de239f..5e5d24c1ce2b 100644 --- a/drivers/net/wireless/wl3501_cs.c +++ b/drivers/net/wireless/wl3501_cs.c @@ -1451,6 +1451,8 @@ static void wl3501_detach(struct pcmcia_device *link) netif_device_detach(dev); wl3501_release(link); + unregister_netdev(dev); + if (link->priv) free_netdev(link->priv); @@ -1897,10 +1899,6 @@ static int wl3501_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 5; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = wl3501_interrupt; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -1961,7 +1959,7 @@ static int wl3501_config(struct pcmcia_device *link) /* Now allocate an interrupt line. Note that this does not actually * assign a handler to the interrupt. */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, wl3501_interrupt); if (ret) goto failed; @@ -1972,7 +1970,7 @@ static int wl3501_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev)) { @@ -1981,20 +1979,15 @@ static int wl3501_config(struct pcmcia_device *link) } this = netdev_priv(dev); - /* - * At this point, the dev_node_t structure(s) should be initialized and - * arranged in a linked list at link->dev_node. - */ - link->dev_node = &this->node; this->base_addr = dev->base_addr; if (!wl3501_get_flash_mac_addr(this)) { printk(KERN_WARNING "%s: Cant read MAC addr in flash ROM?\n", dev->name); + unregister_netdev(dev); goto failed; } - strcpy(this->node.dev_name, dev->name); for (i = 0; i < 6; i++) dev->dev_addr[i] = ((char *)&this->mac_addr)[i]; @@ -2038,12 +2031,6 @@ failed: */ static void wl3501_release(struct pcmcia_device *link) { - struct net_device *dev = link->priv; - - /* Unlink the device chain */ - if (link->dev_node) - unregister_netdev(dev); - pcmcia_disable_device(link); } diff --git a/drivers/net/zorro8390.c b/drivers/net/zorro8390.c index 81c753a617ab..9548cbb5012a 100644 --- a/drivers/net/zorro8390.c +++ b/drivers/net/zorro8390.c @@ -102,6 +102,7 @@ static struct zorro_device_id zorro8390_zorro_tbl[] __devinitdata = { { ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF, }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, zorro8390_zorro_tbl); static struct zorro_driver zorro8390_driver = { .name = "zorro8390", diff --git a/drivers/oprofile/cpu_buffer.c b/drivers/oprofile/cpu_buffer.c index 166b67ea622f..219f79e2210a 100644 --- a/drivers/oprofile/cpu_buffer.c +++ b/drivers/oprofile/cpu_buffer.c @@ -30,23 +30,7 @@ #define OP_BUFFER_FLAGS 0 -/* - * Read and write access is using spin locking. Thus, writing to the - * buffer by NMI handler (x86) could occur also during critical - * sections when reading the buffer. To avoid this, there are 2 - * buffers for independent read and write access. Read access is in - * process context only, write access only in the NMI handler. If the - * read buffer runs empty, both buffers are swapped atomically. There - * is potentially a small window during swapping where the buffers are - * disabled and samples could be lost. - * - * Using 2 buffers is a little bit overhead, but the solution is clear - * and does not require changes in the ring buffer implementation. It - * can be changed to a single buffer solution when the ring buffer - * access is implemented as non-locking atomic code. - */ -static struct ring_buffer *op_ring_buffer_read; -static struct ring_buffer *op_ring_buffer_write; +static struct ring_buffer *op_ring_buffer; DEFINE_PER_CPU(struct oprofile_cpu_buffer, op_cpu_buffer); static void wq_sync_buffer(struct work_struct *work); @@ -68,12 +52,9 @@ void oprofile_cpu_buffer_inc_smpl_lost(void) void free_cpu_buffers(void) { - if (op_ring_buffer_read) - ring_buffer_free(op_ring_buffer_read); - op_ring_buffer_read = NULL; - if (op_ring_buffer_write) - ring_buffer_free(op_ring_buffer_write); - op_ring_buffer_write = NULL; + if (op_ring_buffer) + ring_buffer_free(op_ring_buffer); + op_ring_buffer = NULL; } #define RB_EVENT_HDR_SIZE 4 @@ -86,11 +67,8 @@ int alloc_cpu_buffers(void) unsigned long byte_size = buffer_size * (sizeof(struct op_sample) + RB_EVENT_HDR_SIZE); - op_ring_buffer_read = ring_buffer_alloc(byte_size, OP_BUFFER_FLAGS); - if (!op_ring_buffer_read) - goto fail; - op_ring_buffer_write = ring_buffer_alloc(byte_size, OP_BUFFER_FLAGS); - if (!op_ring_buffer_write) + op_ring_buffer = ring_buffer_alloc(byte_size, OP_BUFFER_FLAGS); + if (!op_ring_buffer) goto fail; for_each_possible_cpu(i) { @@ -162,16 +140,11 @@ struct op_sample *op_cpu_buffer_write_reserve(struct op_entry *entry, unsigned long size) { entry->event = ring_buffer_lock_reserve - (op_ring_buffer_write, sizeof(struct op_sample) + + (op_ring_buffer, sizeof(struct op_sample) + size * sizeof(entry->sample->data[0])); - if (entry->event) - entry->sample = ring_buffer_event_data(entry->event); - else - entry->sample = NULL; - - if (!entry->sample) + if (!entry->event) return NULL; - + entry->sample = ring_buffer_event_data(entry->event); entry->size = size; entry->data = entry->sample->data; @@ -180,25 +153,16 @@ struct op_sample int op_cpu_buffer_write_commit(struct op_entry *entry) { - return ring_buffer_unlock_commit(op_ring_buffer_write, entry->event); + return ring_buffer_unlock_commit(op_ring_buffer, entry->event); } struct op_sample *op_cpu_buffer_read_entry(struct op_entry *entry, int cpu) { struct ring_buffer_event *e; - e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL); - if (e) - goto event; - if (ring_buffer_swap_cpu(op_ring_buffer_read, - op_ring_buffer_write, - cpu)) + e = ring_buffer_consume(op_ring_buffer, cpu, NULL, NULL); + if (!e) return NULL; - e = ring_buffer_consume(op_ring_buffer_read, cpu, NULL); - if (e) - goto event; - return NULL; -event: entry->event = e; entry->sample = ring_buffer_event_data(e); entry->size = (ring_buffer_event_length(e) - sizeof(struct op_sample)) @@ -209,8 +173,7 @@ event: unsigned long op_cpu_buffer_entries(int cpu) { - return ring_buffer_entries_cpu(op_ring_buffer_read, cpu) - + ring_buffer_entries_cpu(op_ring_buffer_write, cpu); + return ring_buffer_entries_cpu(op_ring_buffer, cpu); } static int @@ -356,8 +319,16 @@ void oprofile_add_ext_sample(unsigned long pc, struct pt_regs * const regs, void oprofile_add_sample(struct pt_regs * const regs, unsigned long event) { - int is_kernel = !user_mode(regs); - unsigned long pc = profile_pc(regs); + int is_kernel; + unsigned long pc; + + if (likely(regs)) { + is_kernel = !user_mode(regs); + pc = profile_pc(regs); + } else { + is_kernel = 0; /* This value will not be used */ + pc = ESCAPE_CODE; /* as this causes an early return. */ + } __oprofile_add_ext_sample(pc, regs, event, is_kernel); } diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c index dc8a0428260d..b336cd9ee7a1 100644 --- a/drivers/oprofile/oprof.c +++ b/drivers/oprofile/oprof.c @@ -253,22 +253,26 @@ static int __init oprofile_init(void) int err; err = oprofile_arch_init(&oprofile_ops); - if (err < 0 || timer) { printk(KERN_INFO "oprofile: using timer interrupt.\n"); - oprofile_timer_init(&oprofile_ops); + err = oprofile_timer_init(&oprofile_ops); + if (err) + goto out_arch; } - err = oprofilefs_register(); if (err) - oprofile_arch_exit(); + goto out_arch; + return 0; +out_arch: + oprofile_arch_exit(); return err; } static void __exit oprofile_exit(void) { + oprofile_timer_exit(); oprofilefs_unregister(); oprofile_arch_exit(); } diff --git a/drivers/oprofile/oprof.h b/drivers/oprofile/oprof.h index cb92f5c98c1a..47e12cb4ee8b 100644 --- a/drivers/oprofile/oprof.h +++ b/drivers/oprofile/oprof.h @@ -34,7 +34,8 @@ struct super_block; struct dentry; void oprofile_create_files(struct super_block *sb, struct dentry *root); -void oprofile_timer_init(struct oprofile_operations *ops); +int oprofile_timer_init(struct oprofile_operations *ops); +void oprofile_timer_exit(void); int oprofile_set_backtrace(unsigned long depth); int oprofile_set_timeout(unsigned long time); diff --git a/drivers/oprofile/timer_int.c b/drivers/oprofile/timer_int.c index 333f915568c7..dc0ae4d14dff 100644 --- a/drivers/oprofile/timer_int.c +++ b/drivers/oprofile/timer_int.c @@ -13,34 +13,94 @@ #include <linux/oprofile.h> #include <linux/profile.h> #include <linux/init.h> +#include <linux/cpu.h> +#include <linux/hrtimer.h> +#include <asm/irq_regs.h> #include <asm/ptrace.h> #include "oprof.h" -static int timer_notify(struct pt_regs *regs) +static DEFINE_PER_CPU(struct hrtimer, oprofile_hrtimer); + +static enum hrtimer_restart oprofile_hrtimer_notify(struct hrtimer *hrtimer) +{ + oprofile_add_sample(get_irq_regs(), 0); + hrtimer_forward_now(hrtimer, ns_to_ktime(TICK_NSEC)); + return HRTIMER_RESTART; +} + +static void __oprofile_hrtimer_start(void *unused) +{ + struct hrtimer *hrtimer = &__get_cpu_var(oprofile_hrtimer); + + hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + hrtimer->function = oprofile_hrtimer_notify; + + hrtimer_start(hrtimer, ns_to_ktime(TICK_NSEC), + HRTIMER_MODE_REL_PINNED); +} + +static int oprofile_hrtimer_start(void) { - oprofile_add_sample(regs, 0); + on_each_cpu(__oprofile_hrtimer_start, NULL, 1); return 0; } -static int timer_start(void) +static void __oprofile_hrtimer_stop(int cpu) { - return register_timer_hook(timer_notify); + struct hrtimer *hrtimer = &per_cpu(oprofile_hrtimer, cpu); + + hrtimer_cancel(hrtimer); } +static void oprofile_hrtimer_stop(void) +{ + int cpu; + + for_each_online_cpu(cpu) + __oprofile_hrtimer_stop(cpu); +} -static void timer_stop(void) +static int __cpuinit oprofile_cpu_notify(struct notifier_block *self, + unsigned long action, void *hcpu) { - unregister_timer_hook(timer_notify); + long cpu = (long) hcpu; + + switch (action) { + case CPU_ONLINE: + case CPU_ONLINE_FROZEN: + smp_call_function_single(cpu, __oprofile_hrtimer_start, + NULL, 1); + break; + case CPU_DEAD: + case CPU_DEAD_FROZEN: + __oprofile_hrtimer_stop(cpu); + break; + } + return NOTIFY_OK; } +static struct notifier_block __refdata oprofile_cpu_notifier = { + .notifier_call = oprofile_cpu_notify, +}; -void __init oprofile_timer_init(struct oprofile_operations *ops) +int __init oprofile_timer_init(struct oprofile_operations *ops) { + int rc; + + rc = register_hotcpu_notifier(&oprofile_cpu_notifier); + if (rc) + return rc; ops->create_files = NULL; ops->setup = NULL; ops->shutdown = NULL; - ops->start = timer_start; - ops->stop = timer_stop; + ops->start = oprofile_hrtimer_start; + ops->stop = oprofile_hrtimer_stop; ops->cpu_type = "timer"; + return 0; +} + +void __exit oprofile_timer_exit(void) +{ + unregister_hotcpu_notifier(&oprofile_cpu_notifier); } diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c index 7dd370fa3439..fd8cfe95f0a3 100644 --- a/drivers/parport/parport_cs.c +++ b/drivers/parport/parport_cs.c @@ -75,7 +75,6 @@ INT_MODULE_PARM(epp_mode, 1); typedef struct parport_info_t { struct pcmcia_device *p_dev; int ndev; - dev_node_t node; struct parport *port; } parport_info_t; @@ -105,7 +104,6 @@ static int parport_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -174,20 +172,19 @@ static int parport_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2, - link->irq.AssignedIRQ, PARPORT_DMA_NONE, + link->irq, PARPORT_DMA_NONE, &link->dev, IRQF_SHARED); if (p == NULL) { printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at " "0x%3x, irq %u failed\n", link->io.BasePort1, - link->irq.AssignedIRQ); + link->irq); goto failed; } @@ -195,11 +192,7 @@ static int parport_config(struct pcmcia_device *link) if (epp_mode) p->modes |= PARPORT_MODE_TRISTATE | PARPORT_MODE_EPP; info->ndev = 1; - info->node.major = LP_MAJOR; - info->node.minor = p->number; info->port = p; - strcpy(info->node.dev_name, p->name); - link->dev_node = &info->node; return 0; diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index f184d1d2ecbe..6644337d63d6 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -848,7 +848,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_disable_device; } - /* Check for the proper subsytem ID's + /* Check for the proper subsystem ID's * Intel uses a different SSID programming model than Compaq. * For Intel, each SSID bit identifies a PHP capability. * Also Intel HPC's may have RID=0. diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 417312528ddf..371dc564e2e4 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -3626,14 +3626,15 @@ static void intel_iommu_detach_device(struct iommu_domain *domain, domain_remove_one_dev_info(dmar_domain, pdev); } -static int intel_iommu_map_range(struct iommu_domain *domain, - unsigned long iova, phys_addr_t hpa, - size_t size, int iommu_prot) +static int intel_iommu_map(struct iommu_domain *domain, + unsigned long iova, phys_addr_t hpa, + int gfp_order, int iommu_prot) { struct dmar_domain *dmar_domain = domain->priv; u64 max_addr; int addr_width; int prot = 0; + size_t size; int ret; if (iommu_prot & IOMMU_READ) @@ -3643,6 +3644,7 @@ static int intel_iommu_map_range(struct iommu_domain *domain, if ((iommu_prot & IOMMU_CACHE) && dmar_domain->iommu_snooping) prot |= DMA_PTE_SNP; + size = PAGE_SIZE << gfp_order; max_addr = iova + size; if (dmar_domain->max_addr < max_addr) { int min_agaw; @@ -3669,19 +3671,19 @@ static int intel_iommu_map_range(struct iommu_domain *domain, return ret; } -static void intel_iommu_unmap_range(struct iommu_domain *domain, - unsigned long iova, size_t size) +static int intel_iommu_unmap(struct iommu_domain *domain, + unsigned long iova, int gfp_order) { struct dmar_domain *dmar_domain = domain->priv; - - if (!size) - return; + size_t size = PAGE_SIZE << gfp_order; dma_pte_clear_range(dmar_domain, iova >> VTD_PAGE_SHIFT, (iova + size - 1) >> VTD_PAGE_SHIFT); if (dmar_domain->max_addr == iova + size) dmar_domain->max_addr = iova; + + return gfp_order; } static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain, @@ -3714,8 +3716,8 @@ static struct iommu_ops intel_iommu_ops = { .domain_destroy = intel_iommu_domain_destroy, .attach_dev = intel_iommu_attach_device, .detach_dev = intel_iommu_detach_device, - .map = intel_iommu_map_range, - .unmap = intel_iommu_unmap_range, + .map = intel_iommu_map, + .unmap = intel_iommu_unmap, .iova_to_phys = intel_iommu_iova_to_phys, .domain_has_cap = intel_iommu_domain_has_cap, }; diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 37499127c801..1df7c508814e 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1503,7 +1503,7 @@ int pci_prepare_to_sleep(struct pci_dev *dev) * pci_back_from_sleep - turn PCI device on during system-wide transition into working state * @dev: Device to handle. * - * Disable device's sytem wake-up capability and put it into D0. + * Disable device's system wake-up capability and put it into D0. */ int pci_back_from_sleep(struct pci_dev *dev) { diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 4eb10f48d270..f8077b3c8c8c 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -244,7 +244,7 @@ struct pci_ats { int stu; /* Smallest Translation Unit */ int qdep; /* Invalidate Queue Depth */ int ref_cnt; /* Physical Function reference count */ - int is_enabled:1; /* Enable bit is set */ + unsigned int is_enabled:1; /* Enable bit is set */ }; #ifdef CONFIG_PCI_IOV diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index d189e4743e69..d0f5ad306078 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -49,26 +49,6 @@ config PCMCIA_LOAD_CIS If unsure, say Y. -config PCMCIA_IOCTL - bool "PCMCIA control ioctl (obsolete)" - depends on PCMCIA && ARM && !SMP && !PREEMPT - default y - help - If you say Y here, the deprecated ioctl interface to the PCMCIA - subsystem will be built. It is needed by the deprecated pcmcia-cs - tools (cardmgr, cardctl) to function properly. - - You should use the new pcmciautils package instead (see - <file:Documentation/Changes> for location and details). - - This config option will most likely be removed from kernel 2.6.35, - the associated code from kernel 2.6.36. - - As the PCMCIA ioctl is not locking safe, it depends on !SMP and - !PREEMPT. - - If unsure, say N. - config CARDBUS bool "32-bit CardBus support" depends on PCI @@ -234,7 +214,8 @@ config PCMCIA_PXA2XX depends on ARM && ARCH_PXA && PCMCIA depends on (ARCH_LUBBOCK || MACH_MAINSTONE || PXA_SHARPSL \ || MACH_ARMCORE || ARCH_PXA_PALM || TRIZEPS_PCMCIA \ - || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2) + || ARCOM_PCMCIA || ARCH_PXA_ESERIES || MACH_STARGATE2 \ + || MACH_VPAC270) select PCMCIA_SOC_COMMON help Say Y here to include support for the PXA2xx PCMCIA controller @@ -317,7 +298,7 @@ config ELECTRA_CF PA Semi Electra eval board. config PCCARD_NONSTATIC - tristate + bool config PCCARD_IODYN bool diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 381b031d9d75..d006e8beab9c 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -2,15 +2,18 @@ # Makefile for the kernel pcmcia subsystem (c/o David Hinds) # -pcmcia_core-y += cs.o rsrc_mgr.o socket_sysfs.o +pcmcia_core-y += cs.o socket_sysfs.o pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o obj-$(CONFIG_PCCARD) += pcmcia_core.o -pcmcia-y += ds.o pcmcia_resource.o cistpl.o +pcmcia-y += ds.o pcmcia_resource.o cistpl.o pcmcia_cis.o pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o obj-$(CONFIG_PCMCIA) += pcmcia.o -obj-$(CONFIG_PCCARD_NONSTATIC) += rsrc_nonstatic.o +pcmcia_rsrc-y += rsrc_mgr.o +pcmcia_rsrc-$(CONFIG_PCCARD_NONSTATIC) += rsrc_nonstatic.o +pcmcia_rsrc-$(CONFIG_PCCARD_IODYN) += rsrc_iodyn.o +obj-$(CONFIG_PCCARD) += pcmcia_rsrc.o # socket drivers @@ -66,6 +69,7 @@ pxa2xx-obj-$(CONFIG_MACH_PALMTC) += pxa2xx_palmtc.o pxa2xx-obj-$(CONFIG_MACH_PALMLD) += pxa2xx_palmld.o pxa2xx-obj-$(CONFIG_MACH_E740) += pxa2xx_e740.o pxa2xx-obj-$(CONFIG_MACH_STARGATE2) += pxa2xx_stargate2.o +pxa2xx-obj-$(CONFIG_MACH_VPAC270) += pxa2xx_vpac270.o obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y) diff --git a/drivers/pcmcia/bfin_cf_pcmcia.c b/drivers/pcmcia/bfin_cf_pcmcia.c index 9e84d039de41..eae9cbe37a3e 100644 --- a/drivers/pcmcia/bfin_cf_pcmcia.c +++ b/drivers/pcmcia/bfin_cf_pcmcia.c @@ -113,7 +113,7 @@ static int bfin_cf_get_status(struct pcmcia_socket *s, u_int *sp) if (bfin_cf_present(cf->cd_pfx)) { *sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD; - s->irq.AssignedIRQ = 0; + s->pcmcia_irq = 0; s->pci_irq = cf->irq; } else diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c index e6ab2a47d8cb..9a58862f1401 100644 --- a/drivers/pcmcia/cardbus.c +++ b/drivers/pcmcia/cardbus.c @@ -94,7 +94,6 @@ int __ref cb_alloc(struct pcmcia_socket *s) pci_enable_bridges(bus); pci_bus_add_devices(bus); - s->irq.AssignedIRQ = s->pci_irq; return 0; } diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index 854959cada3a..60d428be0b07 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -129,6 +129,8 @@ static void __iomem *set_cis_map(struct pcmcia_socket *s, /** * pcmcia_read_cis_mem() - low-level function to read CIS memory + * + * must be called with ops_mutex held */ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, u_int len, void *ptr) @@ -138,7 +140,6 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len); - mutex_lock(&s->ops_mutex); if (attr & IS_INDIRECT) { /* Indirect accesses use a bunch of special registers at fixed locations in common memory */ @@ -153,7 +154,6 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, if (!sys) { dev_dbg(&s->dev, "could not map memory\n"); memset(ptr, 0xff, len); - mutex_unlock(&s->ops_mutex); return -1; } @@ -184,7 +184,6 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, if (!sys) { dev_dbg(&s->dev, "could not map memory\n"); memset(ptr, 0xff, len); - mutex_unlock(&s->ops_mutex); return -1; } end = sys + s->map_size; @@ -198,7 +197,6 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, addr = 0; } } - mutex_unlock(&s->ops_mutex); dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n", *(u_char *)(ptr+0), *(u_char *)(ptr+1), *(u_char *)(ptr+2), *(u_char *)(ptr+3)); @@ -209,7 +207,8 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, /** * pcmcia_write_cis_mem() - low-level function to write CIS memory * - * Probably only useful for writing one-byte registers. + * Probably only useful for writing one-byte registers. Must be called + * with ops_mutex held. */ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, u_int len, void *ptr) @@ -220,7 +219,6 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, dev_dbg(&s->dev, "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len); - mutex_lock(&s->ops_mutex); if (attr & IS_INDIRECT) { /* Indirect accesses use a bunch of special registers at fixed locations in common memory */ @@ -234,7 +232,6 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, ((cis_width) ? MAP_16BIT : 0)); if (!sys) { dev_dbg(&s->dev, "could not map memory\n"); - mutex_unlock(&s->ops_mutex); return; /* FIXME: Error */ } @@ -260,7 +257,6 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, sys = set_cis_map(s, card_offset, flags); if (!sys) { dev_dbg(&s->dev, "could not map memory\n"); - mutex_unlock(&s->ops_mutex); return; /* FIXME: error */ } @@ -275,7 +271,6 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, addr = 0; } } - mutex_unlock(&s->ops_mutex); } @@ -314,7 +309,6 @@ static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, return 0; } } - mutex_unlock(&s->ops_mutex); ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr); @@ -326,11 +320,11 @@ static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, cis->len = len; cis->attr = attr; memcpy(cis->cache, ptr, len); - mutex_lock(&s->ops_mutex); list_add(&cis->node, &s->cis_cache); - mutex_unlock(&s->ops_mutex); } } + mutex_unlock(&s->ops_mutex); + return ret; } @@ -386,6 +380,7 @@ int verify_cis_cache(struct pcmcia_socket *s) "no memory for verifying CIS\n"); return -ENOMEM; } + mutex_lock(&s->ops_mutex); list_for_each_entry(cis, &s->cis_cache, node) { int len = cis->len; @@ -395,10 +390,12 @@ int verify_cis_cache(struct pcmcia_socket *s) ret = pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf); if (ret || memcmp(buf, cis->cache, len) != 0) { kfree(buf); + mutex_unlock(&s->ops_mutex); return -1; } } kfree(buf); + mutex_unlock(&s->ops_mutex); return 0; } @@ -1362,106 +1359,6 @@ EXPORT_SYMBOL(pcmcia_parse_tuple); /** - * pccard_read_tuple() - internal CIS tuple access - * @s: the struct pcmcia_socket where the card is inserted - * @function: the device function we loop for - * @code: which CIS code shall we look for? - * @parse: buffer where the tuple shall be parsed (or NULL, if no parse) - * - * pccard_read_tuple() reads out one tuple and attempts to parse it - */ -int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, - cisdata_t code, void *parse) -{ - tuple_t tuple; - cisdata_t *buf; - int ret; - - buf = kmalloc(256, GFP_KERNEL); - if (buf == NULL) { - dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n"); - return -ENOMEM; - } - tuple.DesiredTuple = code; - tuple.Attributes = 0; - if (function == BIND_FN_ALL) - tuple.Attributes = TUPLE_RETURN_COMMON; - ret = pccard_get_first_tuple(s, function, &tuple); - if (ret != 0) - goto done; - tuple.TupleData = buf; - tuple.TupleOffset = 0; - tuple.TupleDataMax = 255; - ret = pccard_get_tuple_data(s, &tuple); - if (ret != 0) - goto done; - ret = pcmcia_parse_tuple(&tuple, parse); -done: - kfree(buf); - return ret; -} - - -/** - * pccard_loop_tuple() - loop over tuples in the CIS - * @s: the struct pcmcia_socket where the card is inserted - * @function: the device function we loop for - * @code: which CIS code shall we look for? - * @parse: buffer where the tuple shall be parsed (or NULL, if no parse) - * @priv_data: private data to be passed to the loop_tuple function. - * @loop_tuple: function to call for each CIS entry of type @function. IT - * gets passed the raw tuple, the paresed tuple (if @parse is - * set) and @priv_data. - * - * pccard_loop_tuple() loops over all CIS entries of type @function, and - * calls the @loop_tuple function for each entry. If the call to @loop_tuple - * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. - */ -int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function, - cisdata_t code, cisparse_t *parse, void *priv_data, - int (*loop_tuple) (tuple_t *tuple, - cisparse_t *parse, - void *priv_data)) -{ - tuple_t tuple; - cisdata_t *buf; - int ret; - - buf = kzalloc(256, GFP_KERNEL); - if (buf == NULL) { - dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n"); - return -ENOMEM; - } - - tuple.TupleData = buf; - tuple.TupleDataMax = 255; - tuple.TupleOffset = 0; - tuple.DesiredTuple = code; - tuple.Attributes = 0; - - ret = pccard_get_first_tuple(s, function, &tuple); - while (!ret) { - if (pccard_get_tuple_data(s, &tuple)) - goto next_entry; - - if (parse) - if (pcmcia_parse_tuple(&tuple, parse)) - goto next_entry; - - ret = loop_tuple(&tuple, parse, priv_data); - if (!ret) - break; - -next_entry: - ret = pccard_get_next_tuple(s, function, &tuple); - } - - kfree(buf); - return ret; -} - - -/** * pccard_validate_cis() - check whether card has a sensible CIS * @s: the struct pcmcia_socket we are to check * @info: returns the number of tuples in the (valid) CIS, or 0 diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index c3383750e333..976d80706eae 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -337,7 +337,6 @@ static void socket_shutdown(struct pcmcia_socket *s) s->socket = dead_socket; s->ops->init(s); s->ops->set_socket(s, &s->socket); - s->irq.AssignedIRQ = s->irq.Config = 0; s->lock_count = 0; kfree(s->fake_cis); s->fake_cis = NULL; diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h index f95864c2191e..4126a75445ea 100644 --- a/drivers/pcmcia/cs_internal.h +++ b/drivers/pcmcia/cs_internal.h @@ -52,13 +52,11 @@ struct cis_cache_entry { struct pccard_resource_ops { int (*validate_mem) (struct pcmcia_socket *s); - int (*adjust_io_region) (struct resource *res, - unsigned long r_start, - unsigned long r_end, - struct pcmcia_socket *s); - struct resource* (*find_io) (unsigned long base, int num, - unsigned long align, - struct pcmcia_socket *s); + int (*find_io) (struct pcmcia_socket *s, + unsigned int attr, + unsigned int *base, + unsigned int num, + unsigned int align); struct resource* (*find_mem) (unsigned long base, unsigned long num, unsigned long align, int low, struct pcmcia_socket *s); @@ -89,6 +87,14 @@ struct pccard_resource_ops { /* + * Stuff internal to module "pcmcia_rsrc": + */ +extern int static_init(struct pcmcia_socket *s); +extern struct resource *pcmcia_make_resource(unsigned long start, + unsigned long end, + int flags, const char *name); + +/* * Stuff internal to module "pcmcia_core": */ @@ -149,6 +155,8 @@ extern struct resource *pcmcia_find_mem_region(u_long base, int low, struct pcmcia_socket *s); +void pcmcia_cleanup_irq(struct pcmcia_socket *s); +int pcmcia_setup_irq(struct pcmcia_device *p_dev); /* cistpl.c */ extern struct bin_attribute pccard_cis_attr; diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 041eee43fd8d..7ef7adee5e4f 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -371,8 +371,6 @@ static int pcmcia_device_remove(struct device *dev) if (p_drv->remove) p_drv->remove(p_dev); - p_dev->dev_node = NULL; - /* check for proper unloading */ if (p_dev->_irq || p_dev->_io || p_dev->_locked) dev_printk(KERN_INFO, dev, @@ -479,15 +477,6 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev) } -/* device_add_lock is needed to avoid double registration by cardmgr and kernel. - * Serializes pcmcia_device_add; will most likely be removed in future. - * - * While it has the caveat that adding new PCMCIA devices inside(!) device_register() - * won't work, this doesn't matter much at the moment: the driver core doesn't - * support it either. - */ -static DEFINE_MUTEX(device_add_lock); - struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) { struct pcmcia_device *p_dev, *tmp_dev; @@ -497,8 +486,6 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu if (!s) return NULL; - mutex_lock(&device_add_lock); - pr_debug("adding device to %d, function %d\n", s->sock, function); p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); @@ -538,8 +525,8 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu /* * p_dev->function_config must be the same for all card functions. - * Note that this is serialized by the device_add_lock, so that - * only one such struct will be created. + * Note that this is serialized by ops_mutex, so that only one + * such struct will be created. */ list_for_each_entry(tmp_dev, &s->devices_list, socket_device_list) if (p_dev->func == tmp_dev->func) { @@ -552,28 +539,31 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu /* Add to the list in pcmcia_bus_socket */ list_add(&p_dev->socket_device_list, &s->devices_list); - mutex_unlock(&s->ops_mutex); + if (pcmcia_setup_irq(p_dev)) + dev_warn(&p_dev->dev, + "IRQ setup failed -- device might not work\n"); if (!p_dev->function_config) { dev_dbg(&p_dev->dev, "creating config_t\n"); p_dev->function_config = kzalloc(sizeof(struct config_t), GFP_KERNEL); - if (!p_dev->function_config) + if (!p_dev->function_config) { + mutex_unlock(&s->ops_mutex); goto err_unreg; + } kref_init(&p_dev->function_config->ref); } + mutex_unlock(&s->ops_mutex); dev_printk(KERN_NOTICE, &p_dev->dev, - "pcmcia: registering new device %s\n", - p_dev->devname); + "pcmcia: registering new device %s (IRQ: %d)\n", + p_dev->devname, p_dev->irq); pcmcia_device_query(p_dev); if (device_register(&p_dev->dev)) goto err_unreg; - mutex_unlock(&device_add_lock); - return p_dev; err_unreg: @@ -591,7 +581,6 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu kfree(p_dev->devname); kfree(p_dev); err_put: - mutex_unlock(&device_add_lock); pcmcia_put_socket(s); return NULL; @@ -1258,6 +1247,7 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) handle_event(skt, event); mutex_lock(&s->ops_mutex); destroy_cis_cache(s); + pcmcia_cleanup_irq(s); mutex_unlock(&s->ops_mutex); break; diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index a7cfc7964c7c..0ad06a3bd562 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -117,7 +117,7 @@ static int omap_cf_get_status(struct pcmcia_socket *s, u_int *sp) *sp = SS_READY | SS_DETECT | SS_POWERON | SS_3VCARD; cf = container_of(s, struct omap_cf_socket, socket); - s->irq.AssignedIRQ = 0; + s->pcmcia_irq = 0; s->pci_irq = cf->irq; } else *sp = 0; diff --git a/drivers/pcmcia/pcmcia_cis.c b/drivers/pcmcia/pcmcia_cis.c new file mode 100644 index 000000000000..4a65eaf96b0a --- /dev/null +++ b/drivers/pcmcia/pcmcia_cis.c @@ -0,0 +1,356 @@ +/* + * PCMCIA high-level CIS access functions + * + * The initial developer of the original code is David A. Hinds + * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds + * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. + * + * Copyright (C) 1999 David A. Hinds + * Copyright (C) 2004-2009 Dominik Brodowski + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/netdevice.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/cisreg.h> +#include <pcmcia/cistpl.h> +#include <pcmcia/ss.h> +#include <pcmcia/cs.h> +#include <pcmcia/ds.h> +#include "cs_internal.h" + + +/** + * pccard_read_tuple() - internal CIS tuple access + * @s: the struct pcmcia_socket where the card is inserted + * @function: the device function we loop for + * @code: which CIS code shall we look for? + * @parse: buffer where the tuple shall be parsed (or NULL, if no parse) + * + * pccard_read_tuple() reads out one tuple and attempts to parse it + */ +int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, + cisdata_t code, void *parse) +{ + tuple_t tuple; + cisdata_t *buf; + int ret; + + buf = kmalloc(256, GFP_KERNEL); + if (buf == NULL) { + dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n"); + return -ENOMEM; + } + tuple.DesiredTuple = code; + tuple.Attributes = 0; + if (function == BIND_FN_ALL) + tuple.Attributes = TUPLE_RETURN_COMMON; + ret = pccard_get_first_tuple(s, function, &tuple); + if (ret != 0) + goto done; + tuple.TupleData = buf; + tuple.TupleOffset = 0; + tuple.TupleDataMax = 255; + ret = pccard_get_tuple_data(s, &tuple); + if (ret != 0) + goto done; + ret = pcmcia_parse_tuple(&tuple, parse); +done: + kfree(buf); + return ret; +} + + +/** + * pccard_loop_tuple() - loop over tuples in the CIS + * @s: the struct pcmcia_socket where the card is inserted + * @function: the device function we loop for + * @code: which CIS code shall we look for? + * @parse: buffer where the tuple shall be parsed (or NULL, if no parse) + * @priv_data: private data to be passed to the loop_tuple function. + * @loop_tuple: function to call for each CIS entry of type @function. IT + * gets passed the raw tuple, the paresed tuple (if @parse is + * set) and @priv_data. + * + * pccard_loop_tuple() loops over all CIS entries of type @function, and + * calls the @loop_tuple function for each entry. If the call to @loop_tuple + * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. + */ +int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function, + cisdata_t code, cisparse_t *parse, void *priv_data, + int (*loop_tuple) (tuple_t *tuple, + cisparse_t *parse, + void *priv_data)) +{ + tuple_t tuple; + cisdata_t *buf; + int ret; + + buf = kzalloc(256, GFP_KERNEL); + if (buf == NULL) { + dev_printk(KERN_WARNING, &s->dev, "no memory to read tuple\n"); + return -ENOMEM; + } + + tuple.TupleData = buf; + tuple.TupleDataMax = 255; + tuple.TupleOffset = 0; + tuple.DesiredTuple = code; + tuple.Attributes = 0; + + ret = pccard_get_first_tuple(s, function, &tuple); + while (!ret) { + if (pccard_get_tuple_data(s, &tuple)) + goto next_entry; + + if (parse) + if (pcmcia_parse_tuple(&tuple, parse)) + goto next_entry; + + ret = loop_tuple(&tuple, parse, priv_data); + if (!ret) + break; + +next_entry: + ret = pccard_get_next_tuple(s, function, &tuple); + } + + kfree(buf); + return ret; +} + +struct pcmcia_cfg_mem { + struct pcmcia_device *p_dev; + void *priv_data; + int (*conf_check) (struct pcmcia_device *p_dev, + cistpl_cftable_entry_t *cfg, + cistpl_cftable_entry_t *dflt, + unsigned int vcc, + void *priv_data); + cisparse_t parse; + cistpl_cftable_entry_t dflt; +}; + +/** + * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config() + * + * pcmcia_do_loop_config() is the internal callback for the call from + * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred + * by a struct pcmcia_cfg_mem. + */ +static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv) +{ + cistpl_cftable_entry_t *cfg = &parse->cftable_entry; + struct pcmcia_cfg_mem *cfg_mem = priv; + + /* default values */ + cfg_mem->p_dev->conf.ConfigIndex = cfg->index; + if (cfg->flags & CISTPL_CFTABLE_DEFAULT) + cfg_mem->dflt = *cfg; + + return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt, + cfg_mem->p_dev->socket->socket.Vcc, + cfg_mem->priv_data); +} + +/** + * pcmcia_loop_config() - loop over configuration options + * @p_dev: the struct pcmcia_device which we need to loop for. + * @conf_check: function to call for each configuration option. + * It gets passed the struct pcmcia_device, the CIS data + * describing the configuration option, and private data + * being passed to pcmcia_loop_config() + * @priv_data: private data to be passed to the conf_check function. + * + * pcmcia_loop_config() loops over all configuration options, and calls + * the driver-specific conf_check() for each one, checking whether + * it is a valid one. Returns 0 on success or errorcode otherwise. + */ +int pcmcia_loop_config(struct pcmcia_device *p_dev, + int (*conf_check) (struct pcmcia_device *p_dev, + cistpl_cftable_entry_t *cfg, + cistpl_cftable_entry_t *dflt, + unsigned int vcc, + void *priv_data), + void *priv_data) +{ + struct pcmcia_cfg_mem *cfg_mem; + int ret; + + cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL); + if (cfg_mem == NULL) + return -ENOMEM; + + cfg_mem->p_dev = p_dev; + cfg_mem->conf_check = conf_check; + cfg_mem->priv_data = priv_data; + + ret = pccard_loop_tuple(p_dev->socket, p_dev->func, + CISTPL_CFTABLE_ENTRY, &cfg_mem->parse, + cfg_mem, pcmcia_do_loop_config); + + kfree(cfg_mem); + return ret; +} +EXPORT_SYMBOL(pcmcia_loop_config); + + +struct pcmcia_loop_mem { + struct pcmcia_device *p_dev; + void *priv_data; + int (*loop_tuple) (struct pcmcia_device *p_dev, + tuple_t *tuple, + void *priv_data); +}; + +/** + * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config() + * + * pcmcia_do_loop_tuple() is the internal callback for the call from + * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred + * by a struct pcmcia_cfg_mem. + */ +static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv) +{ + struct pcmcia_loop_mem *loop = priv; + + return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data); +}; + +/** + * pcmcia_loop_tuple() - loop over tuples in the CIS + * @p_dev: the struct pcmcia_device which we need to loop for. + * @code: which CIS code shall we look for? + * @priv_data: private data to be passed to the loop_tuple function. + * @loop_tuple: function to call for each CIS entry of type @function. IT + * gets passed the raw tuple and @priv_data. + * + * pcmcia_loop_tuple() loops over all CIS entries of type @function, and + * calls the @loop_tuple function for each entry. If the call to @loop_tuple + * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. + */ +int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code, + int (*loop_tuple) (struct pcmcia_device *p_dev, + tuple_t *tuple, + void *priv_data), + void *priv_data) +{ + struct pcmcia_loop_mem loop = { + .p_dev = p_dev, + .loop_tuple = loop_tuple, + .priv_data = priv_data}; + + return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL, + &loop, pcmcia_do_loop_tuple); +} +EXPORT_SYMBOL(pcmcia_loop_tuple); + + +struct pcmcia_loop_get { + size_t len; + cisdata_t **buf; +}; + +/** + * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple() + * + * pcmcia_do_get_tuple() is the internal callback for the call from + * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in + * the first tuple, return 0 unconditionally. Create a memory buffer large + * enough to hold the content of the tuple, and fill it with the tuple data. + * The caller is responsible to free the buffer. + */ +static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple, + void *priv) +{ + struct pcmcia_loop_get *get = priv; + + *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL); + if (*get->buf) { + get->len = tuple->TupleDataLen; + memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen); + } else + dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n"); + return 0; +} + +/** + * pcmcia_get_tuple() - get first tuple from CIS + * @p_dev: the struct pcmcia_device which we need to loop for. + * @code: which CIS code shall we look for? + * @buf: pointer to store the buffer to. + * + * pcmcia_get_tuple() gets the content of the first CIS entry of type @code. + * It returns the buffer length (or zero). The caller is responsible to free + * the buffer passed in @buf. + */ +size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code, + unsigned char **buf) +{ + struct pcmcia_loop_get get = { + .len = 0, + .buf = buf, + }; + + *get.buf = NULL; + pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get); + + return get.len; +} +EXPORT_SYMBOL(pcmcia_get_tuple); + + +/** + * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis() + * + * pcmcia_do_get_mac() is the internal callback for the call from + * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the + * tuple contains a proper LAN_NODE_ID of length 6, and copy the data + * to struct net_device->dev_addr[i]. + */ +static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple, + void *priv) +{ + struct net_device *dev = priv; + int i; + + if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID) + return -EINVAL; + if (tuple->TupleDataLen < ETH_ALEN + 2) { + dev_warn(&p_dev->dev, "Invalid CIS tuple length for " + "LAN_NODE_ID\n"); + return -EINVAL; + } + + if (tuple->TupleData[1] != ETH_ALEN) { + dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n"); + return -EINVAL; + } + for (i = 0; i < 6; i++) + dev->dev_addr[i] = tuple->TupleData[i+2]; + return 0; +} + +/** + * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE + * @p_dev: the struct pcmcia_device for which we want the address. + * @dev: a properly prepared struct net_device to store the info to. + * + * pcmcia_get_mac_from_cis() reads out the hardware MAC address from + * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which + * must be set up properly by the driver (see examples!). + */ +int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev) +{ + return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev); +} +EXPORT_SYMBOL(pcmcia_get_mac_from_cis); + diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c index 7631faa0cadd..ef0c5f133691 100644 --- a/drivers/pcmcia/pcmcia_ioctl.c +++ b/drivers/pcmcia/pcmcia_ioctl.c @@ -301,7 +301,9 @@ static int pccard_get_status(struct pcmcia_socket *s, (c->IntType & (INT_MEMORY_AND_IO | INT_ZOOMED_VIDEO))) { u_char reg; if (c->CardValues & PRESENT_PIN_REPLACE) { + mutex_lock(&s->ops_mutex); pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_PRR)>>1, 1, ®); + mutex_unlock(&s->ops_mutex); status->CardState |= (reg & PRR_WP_STATUS) ? CS_EVENT_WRITE_PROTECT : 0; status->CardState |= @@ -315,7 +317,9 @@ static int pccard_get_status(struct pcmcia_socket *s, status->CardState |= CS_EVENT_READY_CHANGE; } if (c->CardValues & PRESENT_EXT_STATUS) { + mutex_lock(&s->ops_mutex); pcmcia_read_cis_mem(s, 1, (c->ConfigBase+CISREG_ESR)>>1, 1, ®); + mutex_unlock(&s->ops_mutex); status->CardState |= (reg & ESR_REQ_ATTN) ? CS_EVENT_REQUEST_ATTENTION : 0; } @@ -351,7 +355,7 @@ static int pccard_get_configuration_info(struct pcmcia_socket *s, if (s->state & SOCKET_CARDBUS_CONFIG) { config->Attributes = CONF_VALID_CLIENT; config->IntType = INT_CARDBUS; - config->AssignedIRQ = s->irq.AssignedIRQ; + config->AssignedIRQ = s->pcmcia_irq; if (config->AssignedIRQ) config->Attributes |= CONF_ENABLE_IRQ; if (s->io[0].res) { @@ -391,7 +395,7 @@ static int pccard_get_configuration_info(struct pcmcia_socket *s, config->ExtStatus = c->ExtStatus; config->Present = config->CardValues = c->CardValues; config->IRQAttributes = c->irq.Attributes; - config->AssignedIRQ = s->irq.AssignedIRQ; + config->AssignedIRQ = s->pcmcia_irq; config->BasePort1 = c->io.BasePort1; config->NumPorts1 = c->io.NumPorts1; config->Attributes1 = c->io.Attributes1; @@ -571,7 +575,6 @@ static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s) static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first) { - dev_node_t *node; struct pcmcia_device *p_dev; struct pcmcia_driver *p_drv; int ret = 0; @@ -633,21 +636,13 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int goto err_put; } - if (first) - node = p_dev->dev_node; - else - for (node = p_dev->dev_node; node; node = node->next) - if (node == bind_info->next) - break; - if (!node) { + if (!first) { ret = -ENODEV; goto err_put; } - strlcpy(bind_info->name, node->dev_name, DEV_NAME_LEN); - bind_info->major = node->major; - bind_info->minor = node->minor; - bind_info->next = node->next; + strlcpy(bind_info->name, dev_name(&p_dev->dev), DEV_NAME_LEN); + bind_info->next = NULL; err_put: pcmcia_put_dev(p_dev); diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index 7c3d03bb4f30..29f91fac1dff 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -23,6 +23,8 @@ #include <linux/netdevice.h> #include <linux/slab.h> +#include <asm/irq.h> + #include <pcmcia/cs_types.h> #include <pcmcia/ss.h> #include <pcmcia/cs.h> @@ -38,29 +40,6 @@ static int io_speed; module_param(io_speed, int, 0444); -#ifdef CONFIG_PCMCIA_PROBE -#include <asm/irq.h> -/* mask of IRQs already reserved by other cards, we should avoid using them */ -static u8 pcmcia_used_irq[NR_IRQS]; -#endif - -static int pcmcia_adjust_io_region(struct resource *res, unsigned long start, - unsigned long end, struct pcmcia_socket *s) -{ - if (s->resource_ops->adjust_io_region) - return s->resource_ops->adjust_io_region(res, start, end, s); - return -ENOMEM; -} - -static struct resource *pcmcia_find_io_region(unsigned long base, int num, - unsigned long align, - struct pcmcia_socket *s) -{ - if (s->resource_ops->find_io) - return s->resource_ops->find_io(base, num, align, s); - return NULL; -} - int pcmcia_validate_mem(struct pcmcia_socket *s) { if (s->resource_ops->validate_mem) @@ -86,8 +65,7 @@ struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, static int alloc_io_space(struct pcmcia_socket *s, u_int attr, unsigned int *base, unsigned int num, u_int lines) { - int i; - unsigned int try, align; + unsigned int align; align = (*base) ? (lines ? 1<<lines : 0) : 1; if (align && (align < num)) { @@ -104,50 +82,8 @@ static int alloc_io_space(struct pcmcia_socket *s, u_int attr, *base, align); align = 0; } - if ((s->features & SS_CAP_STATIC_MAP) && s->io_offset) { - *base = s->io_offset | (*base & 0x0fff); - return 0; - } - /* Check for an already-allocated window that must conflict with - * what was asked for. It is a hack because it does not catch all - * potential conflicts, just the most obvious ones. - */ - for (i = 0; i < MAX_IO_WIN; i++) - if ((s->io[i].res) && *base && - ((s->io[i].res->start & (align-1)) == *base)) - return 1; - for (i = 0; i < MAX_IO_WIN; i++) { - if (!s->io[i].res) { - s->io[i].res = pcmcia_find_io_region(*base, num, align, s); - if (s->io[i].res) { - *base = s->io[i].res->start; - s->io[i].res->flags = (s->io[i].res->flags & ~IORESOURCE_BITS) | (attr & IORESOURCE_BITS); - s->io[i].InUse = num; - break; - } else - return 1; - } else if ((s->io[i].res->flags & IORESOURCE_BITS) != (attr & IORESOURCE_BITS)) - continue; - /* Try to extend top of window */ - try = s->io[i].res->end + 1; - if ((*base == 0) || (*base == try)) - if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start, - s->io[i].res->end + num, s) == 0) { - *base = try; - s->io[i].InUse += num; - break; - } - /* Try to extend bottom of window */ - try = s->io[i].res->start - num; - if ((*base == 0) || (*base == try)) - if (pcmcia_adjust_io_region(s->io[i].res, s->io[i].res->start - num, - s->io[i].res->end, s) == 0) { - *base = try; - s->io[i].InUse += num; - break; - } - } - return (i == MAX_IO_WIN); + + return s->resource_ops->find_io(s, attr, base, num, align); } /* alloc_io_space */ @@ -187,6 +123,7 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, config_t *c; int addr; u_char val; + int ret = 0; if (!p_dev || !p_dev->function_config) return -EINVAL; @@ -203,11 +140,10 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, } addr = (c->ConfigBase + reg->Offset) >> 1; - mutex_unlock(&s->ops_mutex); switch (reg->Action) { case CS_READ: - pcmcia_read_cis_mem(s, 1, addr, 1, &val); + ret = pcmcia_read_cis_mem(s, 1, addr, 1, &val); reg->Value = val; break; case CS_WRITE: @@ -216,10 +152,11 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, break; default: dev_dbg(&s->dev, "Invalid conf register request\n"); - return -EINVAL; + ret = -EINVAL; break; } - return 0; + mutex_unlock(&s->ops_mutex); + return ret; } /* pcmcia_access_configuration_register */ EXPORT_SYMBOL(pcmcia_access_configuration_register); @@ -275,19 +212,9 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev, goto unlock; } - if (mod->Attributes & CONF_IRQ_CHANGE_VALID) { - if (mod->Attributes & CONF_ENABLE_IRQ) { - c->Attributes |= CONF_ENABLE_IRQ; - s->socket.io_irq = s->irq.AssignedIRQ; - } else { - c->Attributes &= ~CONF_ENABLE_IRQ; - s->socket.io_irq = 0; - } - s->ops->set_socket(s, &s->socket); - } - - if (mod->Attributes & CONF_VCC_CHANGE_VALID) { - dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); + if (mod->Attributes & (CONF_IRQ_CHANGE_VALID | CONF_VCC_CHANGE_VALID)) { + dev_dbg(&s->dev, + "changing Vcc or IRQ is not allowed at this time\n"); ret = -EINVAL; goto unlock; } @@ -422,52 +349,6 @@ out: } /* pcmcia_release_io */ -static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) -{ - struct pcmcia_socket *s = p_dev->socket; - config_t *c; - int ret = -EINVAL; - - mutex_lock(&s->ops_mutex); - - c = p_dev->function_config; - - if (!p_dev->_irq) - goto out; - - p_dev->_irq = 0; - - if (c->state & CONFIG_LOCKED) - goto out; - - if (c->irq.Attributes != req->Attributes) { - dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n"); - goto out; - } - if (s->irq.AssignedIRQ != req->AssignedIRQ) { - dev_dbg(&s->dev, "IRQ must match assigned one\n"); - goto out; - } - if (--s->irq.Config == 0) { - c->state &= ~CONFIG_IRQ_REQ; - s->irq.AssignedIRQ = 0; - } - - if (req->Handler) - free_irq(req->AssignedIRQ, p_dev->priv); - -#ifdef CONFIG_PCMCIA_PROBE - pcmcia_used_irq[req->AssignedIRQ]--; -#endif - ret = 0; - -out: - mutex_unlock(&s->ops_mutex); - - return ret; -} /* pcmcia_release_irq */ - - int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) { struct pcmcia_socket *s = p_dev->socket; @@ -551,12 +432,11 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, if (req->Attributes & CONF_ENABLE_SPKR) s->socket.flags |= SS_SPKR_ENA; if (req->Attributes & CONF_ENABLE_IRQ) - s->socket.io_irq = s->irq.AssignedIRQ; + s->socket.io_irq = s->pcmcia_irq; else s->socket.io_irq = 0; s->ops->set_socket(s, &s->socket); s->lock_count++; - mutex_unlock(&s->ops_mutex); /* Set up CIS configuration registers */ base = c->ConfigBase = req->ConfigBase; @@ -574,9 +454,9 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, if (req->Present & PRESENT_IOBASE_0) c->Option |= COR_ADDR_DECODE; } - if (c->state & CONFIG_IRQ_REQ) - if (!(c->irq.Attributes & IRQ_FORCED_PULSE)) - c->Option |= COR_LEVEL_REQ; + if ((req->Attributes & CONF_ENABLE_IRQ) && + !(req->Attributes & CONF_ENABLE_PULSE_IRQ)) + c->Option |= COR_LEVEL_REQ; pcmcia_write_cis_mem(s, 1, (base + CISREG_COR)>>1, 1, &c->Option); mdelay(40); } @@ -605,7 +485,6 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, /* Configure I/O windows */ if (c->state & CONFIG_IO_REQ) { - mutex_lock(&s->ops_mutex); iomap.speed = io_speed; for (i = 0; i < MAX_IO_WIN; i++) if (s->io[i].res) { @@ -624,11 +503,11 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, s->ops->set_io_map(s, &iomap); s->io[i].Config++; } - mutex_unlock(&s->ops_mutex); } c->state |= CONFIG_LOCKED; p_dev->_locked = 1; + mutex_unlock(&s->ops_mutex); return 0; } /* pcmcia_request_configuration */ EXPORT_SYMBOL(pcmcia_request_configuration); @@ -706,137 +585,176 @@ out: EXPORT_SYMBOL(pcmcia_request_io); -/** pcmcia_request_irq +/** + * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device * - * Request_irq() reserves an irq for this client. + * pcmcia_request_irq() is a wrapper around request_irq which will allow + * the PCMCIA core to clean up the registration in pcmcia_disable_device(). + * Drivers are free to use request_irq() directly, but then they need to + * call free_irq themselfves, too. Also, only IRQF_SHARED capable IRQ + * handlers are allowed. + */ +int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev, + irq_handler_t handler) +{ + int ret; + + if (!p_dev->irq) + return -EINVAL; + + ret = request_irq(p_dev->irq, handler, IRQF_SHARED, + p_dev->devname, p_dev->priv); + if (!ret) + p_dev->_irq = 1; + + return ret; +} +EXPORT_SYMBOL(pcmcia_request_irq); + + +/** + * pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first * - * Also, since Linux only reserves irq's when they are actually - * hooked, we don't guarantee that an irq will still be available - * when the configuration is locked. Now that I think about it, - * there might be a way to fix this using a dummy handler. + * pcmcia_request_exclusive_irq() is a wrapper around request_irq which + * attempts first to request an exclusive IRQ. If it fails, it also accepts + * a shared IRQ, but prints out a warning. PCMCIA drivers should allow for + * IRQ sharing and either use request_irq directly (then they need to call + * free_irq themselves, too), or the pcmcia_request_irq() function. */ +int __must_check +__pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev, + irq_handler_t handler) +{ + int ret; + + if (!p_dev->irq) + return -EINVAL; + + ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv); + if (ret) { + ret = pcmcia_request_irq(p_dev, handler); + dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " + "request for exclusive IRQ could not be fulfilled.\n"); + dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " + "needs updating to supported shared IRQ lines.\n"); + } + if (ret) + dev_printk(KERN_INFO, &p_dev->dev, "request_irq() failed\n"); + else + p_dev->_irq = 1; + + return ret; +} /* pcmcia_request_exclusive_irq */ +EXPORT_SYMBOL(__pcmcia_request_exclusive_irq); + #ifdef CONFIG_PCMCIA_PROBE + +/* mask of IRQs already reserved by other cards, we should avoid using them */ +static u8 pcmcia_used_irq[NR_IRQS]; + static irqreturn_t test_action(int cpl, void *dev_id) { return IRQ_NONE; } -#endif -int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) +/** + * pcmcia_setup_isa_irq() - determine whether an ISA IRQ can be used + * @p_dev - the associated PCMCIA device + * + * locking note: must be called with ops_mutex locked. + */ +static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) { struct pcmcia_socket *s = p_dev->socket; - config_t *c; - int ret = -EINVAL, irq = 0; - int type; + unsigned int try, irq; + u32 mask = s->irq_mask; + int ret = -ENODEV; - mutex_lock(&s->ops_mutex); + for (try = 0; try < 64; try++) { + irq = try % 32; - if (!(s->state & SOCKET_PRESENT)) { - dev_dbg(&s->dev, "No card present\n"); - goto out; - } - c = p_dev->function_config; - if (c->state & CONFIG_LOCKED) { - dev_dbg(&s->dev, "Configuration is locked\n"); - goto out; - } - if (c->state & CONFIG_IRQ_REQ) { - dev_dbg(&s->dev, "IRQ already configured\n"); - goto out; + /* marked as available by driver, not blocked by userspace? */ + if (!((mask >> irq) & 1)) + continue; + + /* avoid an IRQ which is already used by another PCMCIA card */ + if ((try < 32) && pcmcia_used_irq[irq]) + continue; + + /* register the correct driver, if possible, to check whether + * registering a dummy handle works, i.e. if the IRQ isn't + * marked as used by the kernel resource management core */ + ret = request_irq(irq, test_action, type, p_dev->devname, + p_dev); + if (!ret) { + free_irq(irq, p_dev); + p_dev->irq = s->pcmcia_irq = irq; + pcmcia_used_irq[irq]++; + break; + } } - /* Decide what type of interrupt we are registering */ - type = 0; - if (s->functions > 1) /* All of this ought to be handled higher up */ - type = IRQF_SHARED; - else if (req->Attributes & IRQ_TYPE_DYNAMIC_SHARING) - type = IRQF_SHARED; - else - printk(KERN_WARNING "pcmcia: Driver needs updating to support IRQ sharing.\n"); + return ret; +} - /* If the interrupt is already assigned, it must be the same */ - if (s->irq.AssignedIRQ != 0) - irq = s->irq.AssignedIRQ; +void pcmcia_cleanup_irq(struct pcmcia_socket *s) +{ + pcmcia_used_irq[s->pcmcia_irq]--; + s->pcmcia_irq = 0; +} -#ifdef CONFIG_PCMCIA_PROBE - if (!irq) { - int try; - u32 mask = s->irq_mask; - void *data = p_dev; /* something unique to this device */ +#else /* CONFIG_PCMCIA_PROBE */ - for (try = 0; try < 64; try++) { - irq = try % 32; +static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) +{ + return -EINVAL; +} - /* marked as available by driver, and not blocked by userspace? */ - if (!((mask >> irq) & 1)) - continue; +void pcmcia_cleanup_irq(struct pcmcia_socket *s) +{ + s->pcmcia_irq = 0; + return; +} - /* avoid an IRQ which is already used by a PCMCIA card */ - if ((try < 32) && pcmcia_used_irq[irq]) - continue; +#endif /* CONFIG_PCMCIA_PROBE */ - /* register the correct driver, if possible, of check whether - * registering a dummy handle works, i.e. if the IRQ isn't - * marked as used by the kernel resource management core */ - ret = request_irq(irq, - (req->Handler) ? req->Handler : test_action, - type, - p_dev->devname, - (req->Handler) ? p_dev->priv : data); - if (!ret) { - if (!req->Handler) - free_irq(irq, data); - break; - } - } - } -#endif - /* only assign PCI irq if no IRQ already assigned */ - if (ret && !s->irq.AssignedIRQ) { - if (!s->pci_irq) { - dev_printk(KERN_INFO, &s->dev, "no IRQ found\n"); - goto out; - } - type = IRQF_SHARED; - irq = s->pci_irq; - } - if (ret && req->Handler) { - ret = request_irq(irq, req->Handler, type, - p_dev->devname, p_dev->priv); - if (ret) { - dev_printk(KERN_INFO, &s->dev, - "request_irq() failed\n"); - goto out; - } - } +/** + * pcmcia_setup_irq() - determine IRQ to be used for device + * @p_dev - the associated PCMCIA device + * + * locking note: must be called with ops_mutex locked. + */ +int pcmcia_setup_irq(struct pcmcia_device *p_dev) +{ + struct pcmcia_socket *s = p_dev->socket; - /* Make sure the fact the request type was overridden is passed back */ - if (type == IRQF_SHARED && !(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) { - req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING; - dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " - "request for exclusive IRQ could not be fulfilled.\n"); - dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " - "needs updating to supported shared IRQ lines.\n"); + if (p_dev->irq) + return 0; + + /* already assigned? */ + if (s->pcmcia_irq) { + p_dev->irq = s->pcmcia_irq; + return 0; } - c->irq.Attributes = req->Attributes; - s->irq.AssignedIRQ = req->AssignedIRQ = irq; - s->irq.Config++; - c->state |= CONFIG_IRQ_REQ; - p_dev->_irq = 1; + /* prefer an exclusive ISA irq */ + if (!pcmcia_setup_isa_irq(p_dev, 0)) + return 0; -#ifdef CONFIG_PCMCIA_PROBE - pcmcia_used_irq[irq]++; -#endif + /* but accept a shared ISA irq */ + if (!pcmcia_setup_isa_irq(p_dev, IRQF_SHARED)) + return 0; - ret = 0; -out: - mutex_unlock(&s->ops_mutex); - return ret; -} /* pcmcia_request_irq */ -EXPORT_SYMBOL(pcmcia_request_irq); + /* but use the PCI irq otherwise */ + if (s->pci_irq) { + p_dev->irq = s->pcmcia_irq = s->pci_irq; + return 0; + } + + return -EINVAL; +} /** pcmcia_request_window @@ -939,237 +857,9 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev) { pcmcia_release_configuration(p_dev); pcmcia_release_io(p_dev, &p_dev->io); - pcmcia_release_irq(p_dev, &p_dev->irq); + if (p_dev->_irq) + free_irq(p_dev->irq, p_dev->priv); if (p_dev->win) pcmcia_release_window(p_dev, p_dev->win); } EXPORT_SYMBOL(pcmcia_disable_device); - - -struct pcmcia_cfg_mem { - struct pcmcia_device *p_dev; - void *priv_data; - int (*conf_check) (struct pcmcia_device *p_dev, - cistpl_cftable_entry_t *cfg, - cistpl_cftable_entry_t *dflt, - unsigned int vcc, - void *priv_data); - cisparse_t parse; - cistpl_cftable_entry_t dflt; -}; - -/** - * pcmcia_do_loop_config() - internal helper for pcmcia_loop_config() - * - * pcmcia_do_loop_config() is the internal callback for the call from - * pcmcia_loop_config() to pccard_loop_tuple(). Data is transferred - * by a struct pcmcia_cfg_mem. - */ -static int pcmcia_do_loop_config(tuple_t *tuple, cisparse_t *parse, void *priv) -{ - cistpl_cftable_entry_t *cfg = &parse->cftable_entry; - struct pcmcia_cfg_mem *cfg_mem = priv; - - /* default values */ - cfg_mem->p_dev->conf.ConfigIndex = cfg->index; - if (cfg->flags & CISTPL_CFTABLE_DEFAULT) - cfg_mem->dflt = *cfg; - - return cfg_mem->conf_check(cfg_mem->p_dev, cfg, &cfg_mem->dflt, - cfg_mem->p_dev->socket->socket.Vcc, - cfg_mem->priv_data); -} - -/** - * pcmcia_loop_config() - loop over configuration options - * @p_dev: the struct pcmcia_device which we need to loop for. - * @conf_check: function to call for each configuration option. - * It gets passed the struct pcmcia_device, the CIS data - * describing the configuration option, and private data - * being passed to pcmcia_loop_config() - * @priv_data: private data to be passed to the conf_check function. - * - * pcmcia_loop_config() loops over all configuration options, and calls - * the driver-specific conf_check() for each one, checking whether - * it is a valid one. Returns 0 on success or errorcode otherwise. - */ -int pcmcia_loop_config(struct pcmcia_device *p_dev, - int (*conf_check) (struct pcmcia_device *p_dev, - cistpl_cftable_entry_t *cfg, - cistpl_cftable_entry_t *dflt, - unsigned int vcc, - void *priv_data), - void *priv_data) -{ - struct pcmcia_cfg_mem *cfg_mem; - int ret; - - cfg_mem = kzalloc(sizeof(struct pcmcia_cfg_mem), GFP_KERNEL); - if (cfg_mem == NULL) - return -ENOMEM; - - cfg_mem->p_dev = p_dev; - cfg_mem->conf_check = conf_check; - cfg_mem->priv_data = priv_data; - - ret = pccard_loop_tuple(p_dev->socket, p_dev->func, - CISTPL_CFTABLE_ENTRY, &cfg_mem->parse, - cfg_mem, pcmcia_do_loop_config); - - kfree(cfg_mem); - return ret; -} -EXPORT_SYMBOL(pcmcia_loop_config); - - -struct pcmcia_loop_mem { - struct pcmcia_device *p_dev; - void *priv_data; - int (*loop_tuple) (struct pcmcia_device *p_dev, - tuple_t *tuple, - void *priv_data); -}; - -/** - * pcmcia_do_loop_tuple() - internal helper for pcmcia_loop_config() - * - * pcmcia_do_loop_tuple() is the internal callback for the call from - * pcmcia_loop_tuple() to pccard_loop_tuple(). Data is transferred - * by a struct pcmcia_cfg_mem. - */ -static int pcmcia_do_loop_tuple(tuple_t *tuple, cisparse_t *parse, void *priv) -{ - struct pcmcia_loop_mem *loop = priv; - - return loop->loop_tuple(loop->p_dev, tuple, loop->priv_data); -}; - -/** - * pcmcia_loop_tuple() - loop over tuples in the CIS - * @p_dev: the struct pcmcia_device which we need to loop for. - * @code: which CIS code shall we look for? - * @priv_data: private data to be passed to the loop_tuple function. - * @loop_tuple: function to call for each CIS entry of type @function. IT - * gets passed the raw tuple and @priv_data. - * - * pcmcia_loop_tuple() loops over all CIS entries of type @function, and - * calls the @loop_tuple function for each entry. If the call to @loop_tuple - * returns 0, the loop exits. Returns 0 on success or errorcode otherwise. - */ -int pcmcia_loop_tuple(struct pcmcia_device *p_dev, cisdata_t code, - int (*loop_tuple) (struct pcmcia_device *p_dev, - tuple_t *tuple, - void *priv_data), - void *priv_data) -{ - struct pcmcia_loop_mem loop = { - .p_dev = p_dev, - .loop_tuple = loop_tuple, - .priv_data = priv_data}; - - return pccard_loop_tuple(p_dev->socket, p_dev->func, code, NULL, - &loop, pcmcia_do_loop_tuple); -} -EXPORT_SYMBOL(pcmcia_loop_tuple); - - -struct pcmcia_loop_get { - size_t len; - cisdata_t **buf; -}; - -/** - * pcmcia_do_get_tuple() - internal helper for pcmcia_get_tuple() - * - * pcmcia_do_get_tuple() is the internal callback for the call from - * pcmcia_get_tuple() to pcmcia_loop_tuple(). As we're only interested in - * the first tuple, return 0 unconditionally. Create a memory buffer large - * enough to hold the content of the tuple, and fill it with the tuple data. - * The caller is responsible to free the buffer. - */ -static int pcmcia_do_get_tuple(struct pcmcia_device *p_dev, tuple_t *tuple, - void *priv) -{ - struct pcmcia_loop_get *get = priv; - - *get->buf = kzalloc(tuple->TupleDataLen, GFP_KERNEL); - if (*get->buf) { - get->len = tuple->TupleDataLen; - memcpy(*get->buf, tuple->TupleData, tuple->TupleDataLen); - } else - dev_dbg(&p_dev->dev, "do_get_tuple: out of memory\n"); - return 0; -} - -/** - * pcmcia_get_tuple() - get first tuple from CIS - * @p_dev: the struct pcmcia_device which we need to loop for. - * @code: which CIS code shall we look for? - * @buf: pointer to store the buffer to. - * - * pcmcia_get_tuple() gets the content of the first CIS entry of type @code. - * It returns the buffer length (or zero). The caller is responsible to free - * the buffer passed in @buf. - */ -size_t pcmcia_get_tuple(struct pcmcia_device *p_dev, cisdata_t code, - unsigned char **buf) -{ - struct pcmcia_loop_get get = { - .len = 0, - .buf = buf, - }; - - *get.buf = NULL; - pcmcia_loop_tuple(p_dev, code, pcmcia_do_get_tuple, &get); - - return get.len; -} -EXPORT_SYMBOL(pcmcia_get_tuple); - - -/** - * pcmcia_do_get_mac() - internal helper for pcmcia_get_mac_from_cis() - * - * pcmcia_do_get_mac() is the internal callback for the call from - * pcmcia_get_mac_from_cis() to pcmcia_loop_tuple(). We check whether the - * tuple contains a proper LAN_NODE_ID of length 6, and copy the data - * to struct net_device->dev_addr[i]. - */ -static int pcmcia_do_get_mac(struct pcmcia_device *p_dev, tuple_t *tuple, - void *priv) -{ - struct net_device *dev = priv; - int i; - - if (tuple->TupleData[0] != CISTPL_FUNCE_LAN_NODE_ID) - return -EINVAL; - if (tuple->TupleDataLen < ETH_ALEN + 2) { - dev_warn(&p_dev->dev, "Invalid CIS tuple length for " - "LAN_NODE_ID\n"); - return -EINVAL; - } - - if (tuple->TupleData[1] != ETH_ALEN) { - dev_warn(&p_dev->dev, "Invalid header for LAN_NODE_ID\n"); - return -EINVAL; - } - for (i = 0; i < 6; i++) - dev->dev_addr[i] = tuple->TupleData[i+2]; - return 0; -} - -/** - * pcmcia_get_mac_from_cis() - read out MAC address from CISTPL_FUNCE - * @p_dev: the struct pcmcia_device for which we want the address. - * @dev: a properly prepared struct net_device to store the info to. - * - * pcmcia_get_mac_from_cis() reads out the hardware MAC address from - * CISTPL_FUNCE and stores it into struct net_device *dev->dev_addr which - * must be set up properly by the driver (see examples!). - */ -int pcmcia_get_mac_from_cis(struct pcmcia_device *p_dev, struct net_device *dev) -{ - return pcmcia_loop_tuple(p_dev, CISTPL_FUNCE, pcmcia_do_get_mac, dev); -} -EXPORT_SYMBOL(pcmcia_get_mac_from_cis); - diff --git a/drivers/pcmcia/pxa2xx_vpac270.c b/drivers/pcmcia/pxa2xx_vpac270.c new file mode 100644 index 000000000000..55627eccee8e --- /dev/null +++ b/drivers/pcmcia/pxa2xx_vpac270.c @@ -0,0 +1,229 @@ +/* + * linux/drivers/pcmcia/pxa2xx_vpac270.c + * + * Driver for Voipac PXA270 PCMCIA and CF sockets + * + * Copyright (C) 2010 + * Marek Vasut <marek.vasut@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/module.h> +#include <linux/platform_device.h> + +#include <asm/mach-types.h> + +#include <mach/gpio.h> +#include <mach/vpac270.h> + +#include "soc_common.h" + +static struct pcmcia_irqs cd_irqs[] = { + { + .sock = 0, + .irq = IRQ_GPIO(GPIO84_VPAC270_PCMCIA_CD), + .str = "PCMCIA CD" + }, + { + .sock = 1, + .irq = IRQ_GPIO(GPIO17_VPAC270_CF_CD), + .str = "CF CD" + }, +}; + +static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt) +{ + int ret; + + if (skt->nr == 0) { + ret = gpio_request(GPIO84_VPAC270_PCMCIA_CD, "PCMCIA CD"); + if (ret) + goto err1; + ret = gpio_direction_input(GPIO84_VPAC270_PCMCIA_CD); + if (ret) + goto err2; + + ret = gpio_request(GPIO35_VPAC270_PCMCIA_RDY, "PCMCIA RDY"); + if (ret) + goto err2; + ret = gpio_direction_input(GPIO35_VPAC270_PCMCIA_RDY); + if (ret) + goto err3; + + ret = gpio_request(GPIO107_VPAC270_PCMCIA_PPEN, "PCMCIA PPEN"); + if (ret) + goto err3; + ret = gpio_direction_output(GPIO107_VPAC270_PCMCIA_PPEN, 0); + if (ret) + goto err4; + + ret = gpio_request(GPIO11_VPAC270_PCMCIA_RESET, "PCMCIA RESET"); + if (ret) + goto err4; + ret = gpio_direction_output(GPIO11_VPAC270_PCMCIA_RESET, 0); + if (ret) + goto err5; + + skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY); + + return soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1); + +err5: + gpio_free(GPIO11_VPAC270_PCMCIA_RESET); +err4: + gpio_free(GPIO107_VPAC270_PCMCIA_PPEN); +err3: + gpio_free(GPIO35_VPAC270_PCMCIA_RDY); +err2: + gpio_free(GPIO84_VPAC270_PCMCIA_CD); +err1: + return ret; + + } else { + ret = gpio_request(GPIO17_VPAC270_CF_CD, "CF CD"); + if (ret) + goto err6; + ret = gpio_direction_input(GPIO17_VPAC270_CF_CD); + if (ret) + goto err7; + + ret = gpio_request(GPIO12_VPAC270_CF_RDY, "CF RDY"); + if (ret) + goto err7; + ret = gpio_direction_input(GPIO12_VPAC270_CF_RDY); + if (ret) + goto err8; + + ret = gpio_request(GPIO16_VPAC270_CF_RESET, "CF RESET"); + if (ret) + goto err8; + ret = gpio_direction_output(GPIO16_VPAC270_CF_RESET, 0); + if (ret) + goto err9; + + skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY); + + return soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1); + +err9: + gpio_free(GPIO16_VPAC270_CF_RESET); +err8: + gpio_free(GPIO12_VPAC270_CF_RDY); +err7: + gpio_free(GPIO17_VPAC270_CF_CD); +err6: + return ret; + + } +} + +static void vpac270_pcmcia_hw_shutdown(struct soc_pcmcia_socket *skt) +{ + gpio_free(GPIO11_VPAC270_PCMCIA_RESET); + gpio_free(GPIO107_VPAC270_PCMCIA_PPEN); + gpio_free(GPIO35_VPAC270_PCMCIA_RDY); + gpio_free(GPIO84_VPAC270_PCMCIA_CD); + gpio_free(GPIO16_VPAC270_CF_RESET); + gpio_free(GPIO12_VPAC270_CF_RDY); + gpio_free(GPIO17_VPAC270_CF_CD); +} + +static void vpac270_pcmcia_socket_state(struct soc_pcmcia_socket *skt, + struct pcmcia_state *state) +{ + if (skt->nr == 0) { + state->detect = !gpio_get_value(GPIO84_VPAC270_PCMCIA_CD); + state->ready = !!gpio_get_value(GPIO35_VPAC270_PCMCIA_RDY); + } else { + state->detect = !gpio_get_value(GPIO17_VPAC270_CF_CD); + state->ready = !!gpio_get_value(GPIO12_VPAC270_CF_RDY); + } + state->bvd1 = 1; + state->bvd2 = 1; + state->wrprot = 0; + state->vs_3v = 1; + state->vs_Xv = 0; +} + +static int +vpac270_pcmcia_configure_socket(struct soc_pcmcia_socket *skt, + const socket_state_t *state) +{ + if (skt->nr == 0) { + gpio_set_value(GPIO11_VPAC270_PCMCIA_RESET, + (state->flags & SS_RESET)); + gpio_set_value(GPIO107_VPAC270_PCMCIA_PPEN, + !(state->Vcc == 33 || state->Vcc == 50)); + } else { + gpio_set_value(GPIO16_VPAC270_CF_RESET, + (state->flags & SS_RESET)); + } + + return 0; +} + +static void vpac270_pcmcia_socket_init(struct soc_pcmcia_socket *skt) +{ +} + +static void vpac270_pcmcia_socket_suspend(struct soc_pcmcia_socket *skt) +{ +} + +static struct pcmcia_low_level vpac270_pcmcia_ops = { + .owner = THIS_MODULE, + + .first = 0, + .nr = 2, + + .hw_init = vpac270_pcmcia_hw_init, + .hw_shutdown = vpac270_pcmcia_hw_shutdown, + + .socket_state = vpac270_pcmcia_socket_state, + .configure_socket = vpac270_pcmcia_configure_socket, + + .socket_init = vpac270_pcmcia_socket_init, + .socket_suspend = vpac270_pcmcia_socket_suspend, +}; + +static struct platform_device *vpac270_pcmcia_device; + +static int __init vpac270_pcmcia_init(void) +{ + int ret; + + if (!machine_is_vpac270()) + return -ENODEV; + + vpac270_pcmcia_device = platform_device_alloc("pxa2xx-pcmcia", -1); + if (!vpac270_pcmcia_device) + return -ENOMEM; + + ret = platform_device_add_data(vpac270_pcmcia_device, + &vpac270_pcmcia_ops, sizeof(vpac270_pcmcia_ops)); + + if (!ret) + ret = platform_device_add(vpac270_pcmcia_device); + + if (ret) + platform_device_put(vpac270_pcmcia_device); + + return ret; +} + +static void __exit vpac270_pcmcia_exit(void) +{ + platform_device_unregister(vpac270_pcmcia_device); +} + +module_init(vpac270_pcmcia_init); +module_exit(vpac270_pcmcia_exit); + +MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>"); +MODULE_DESCRIPTION("PCMCIA support for Voipac PXA270"); +MODULE_ALIAS("platform:pxa2xx-pcmcia"); +MODULE_LICENSE("GPL"); diff --git a/drivers/pcmcia/rsrc_iodyn.c b/drivers/pcmcia/rsrc_iodyn.c new file mode 100644 index 000000000000..d0bf35021065 --- /dev/null +++ b/drivers/pcmcia/rsrc_iodyn.c @@ -0,0 +1,172 @@ +/* + * rsrc_iodyn.c -- Resource management routines for MEM-static sockets. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * The initial developer of the original code is David A. Hinds + * <dahinds@users.sourceforge.net>. Portions created by David A. Hinds + * are Copyright (C) 1999 David A. Hinds. All Rights Reserved. + * + * (C) 1999 David A. Hinds + */ + +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/kernel.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/ss.h> +#include <pcmcia/cs.h> +#include <pcmcia/cistpl.h> +#include "cs_internal.h" + + +struct pcmcia_align_data { + unsigned long mask; + unsigned long offset; +}; + +static resource_size_t pcmcia_align(void *align_data, + const struct resource *res, + resource_size_t size, resource_size_t align) +{ + struct pcmcia_align_data *data = align_data; + resource_size_t start; + + start = (res->start & ~data->mask) + data->offset; + if (start < res->start) + start += data->mask + 1; + +#ifdef CONFIG_X86 + if (res->flags & IORESOURCE_IO) { + if (start & 0x300) + start = (start + 0x3ff) & ~0x3ff; + } +#endif + +#ifdef CONFIG_M68K + if (res->flags & IORESOURCE_IO) { + if ((res->start + size - 1) >= 1024) + start = res->end; + } +#endif + + return start; +} + + +static struct resource *__iodyn_find_io_region(struct pcmcia_socket *s, + unsigned long base, int num, + unsigned long align) +{ + struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO, + dev_name(&s->dev)); + struct pcmcia_align_data data; + unsigned long min = base; + int ret; + + data.mask = align - 1; + data.offset = base & data.mask; + +#ifdef CONFIG_PCI + if (s->cb_dev) { + ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, + min, 0, pcmcia_align, &data); + } else +#endif + ret = allocate_resource(&ioport_resource, res, num, min, ~0UL, + 1, pcmcia_align, &data); + + if (ret != 0) { + kfree(res); + res = NULL; + } + return res; +} + +static int iodyn_find_io(struct pcmcia_socket *s, unsigned int attr, + unsigned int *base, unsigned int num, + unsigned int align) +{ + int i, ret = 0; + + /* Check for an already-allocated window that must conflict with + * what was asked for. It is a hack because it does not catch all + * potential conflicts, just the most obvious ones. + */ + for (i = 0; i < MAX_IO_WIN; i++) { + if (!s->io[i].res) + continue; + + if (!*base) + continue; + + if ((s->io[i].res->start & (align-1)) == *base) + return -EBUSY; + } + + for (i = 0; i < MAX_IO_WIN; i++) { + struct resource *res = s->io[i].res; + unsigned int try; + + if (res && (res->flags & IORESOURCE_BITS) != + (attr & IORESOURCE_BITS)) + continue; + + if (!res) { + if (align == 0) + align = 0x10000; + + res = s->io[i].res = __iodyn_find_io_region(s, *base, + num, align); + if (!res) + return -EINVAL; + + *base = res->start; + s->io[i].res->flags = + ((res->flags & ~IORESOURCE_BITS) | + (attr & IORESOURCE_BITS)); + s->io[i].InUse = num; + return 0; + } + + /* Try to extend top of window */ + try = res->end + 1; + if ((*base == 0) || (*base == try)) { + if (adjust_resource(s->io[i].res, res->start, + res->end - res->start + num + 1)) + continue; + *base = try; + s->io[i].InUse += num; + return 0; + } + + /* Try to extend bottom of window */ + try = res->start - num; + if ((*base == 0) || (*base == try)) { + if (adjust_resource(s->io[i].res, + res->start - num, + res->end - res->start + num + 1)) + continue; + *base = try; + s->io[i].InUse += num; + return 0; + } + } + + return -EINVAL; +} + + +struct pccard_resource_ops pccard_iodyn_ops = { + .validate_mem = NULL, + .find_io = iodyn_find_io, + .find_mem = NULL, + .add_io = NULL, + .add_mem = NULL, + .init = static_init, + .exit = NULL, +}; +EXPORT_SYMBOL(pccard_iodyn_ops); diff --git a/drivers/pcmcia/rsrc_mgr.c b/drivers/pcmcia/rsrc_mgr.c index ffa5f3cae57b..142efac3c387 100644 --- a/drivers/pcmcia/rsrc_mgr.c +++ b/drivers/pcmcia/rsrc_mgr.c @@ -22,7 +22,7 @@ #include <pcmcia/cistpl.h> #include "cs_internal.h" -static int static_init(struct pcmcia_socket *s) +int static_init(struct pcmcia_socket *s) { /* the good thing about SS_CAP_STATIC_MAP sockets is * that they don't need a resource database */ @@ -32,118 +32,44 @@ static int static_init(struct pcmcia_socket *s) return 0; } - -struct pccard_resource_ops pccard_static_ops = { - .validate_mem = NULL, - .adjust_io_region = NULL, - .find_io = NULL, - .find_mem = NULL, - .add_io = NULL, - .add_mem = NULL, - .init = static_init, - .exit = NULL, -}; -EXPORT_SYMBOL(pccard_static_ops); - - -#ifdef CONFIG_PCCARD_IODYN - -static struct resource * -make_resource(unsigned long b, unsigned long n, int flags, char *name) +struct resource *pcmcia_make_resource(unsigned long start, unsigned long end, + int flags, const char *name) { struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL); if (res) { res->name = name; - res->start = b; - res->end = b + n - 1; + res->start = start; + res->end = start + end - 1; res->flags = flags; } return res; } -struct pcmcia_align_data { - unsigned long mask; - unsigned long offset; -}; - -static resource_size_t pcmcia_align(void *align_data, - const struct resource *res, - resource_size_t size, resource_size_t align) +static int static_find_io(struct pcmcia_socket *s, unsigned int attr, + unsigned int *base, unsigned int num, + unsigned int align) { - struct pcmcia_align_data *data = align_data; - resource_size_t start; + if (!s->io_offset) + return -EINVAL; + *base = s->io_offset | (*base & 0x0fff); - start = (res->start & ~data->mask) + data->offset; - if (start < res->start) - start += data->mask + 1; - -#ifdef CONFIG_X86 - if (res->flags & IORESOURCE_IO) { - if (start & 0x300) - start = (start + 0x3ff) & ~0x3ff; - } -#endif - -#ifdef CONFIG_M68K - if (res->flags & IORESOURCE_IO) { - if ((res->start + size - 1) >= 1024) - start = res->end; - } -#endif - - return start; -} - - -static int iodyn_adjust_io_region(struct resource *res, unsigned long r_start, - unsigned long r_end, struct pcmcia_socket *s) -{ - return adjust_resource(res, r_start, r_end - r_start + 1); + return 0; } -static struct resource *iodyn_find_io_region(unsigned long base, int num, - unsigned long align, struct pcmcia_socket *s) -{ - struct resource *res = make_resource(0, num, IORESOURCE_IO, - dev_name(&s->dev)); - struct pcmcia_align_data data; - unsigned long min = base; - int ret; - - if (align == 0) - align = 0x10000; - - data.mask = align - 1; - data.offset = base & data.mask; - -#ifdef CONFIG_PCI - if (s->cb_dev) { - ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, - min, 0, pcmcia_align, &data); - } else -#endif - ret = allocate_resource(&ioport_resource, res, num, min, ~0UL, - 1, pcmcia_align, &data); - - if (ret != 0) { - kfree(res); - res = NULL; - } - return res; -} - -struct pccard_resource_ops pccard_iodyn_ops = { +struct pccard_resource_ops pccard_static_ops = { .validate_mem = NULL, - .adjust_io_region = iodyn_adjust_io_region, - .find_io = iodyn_find_io_region, + .find_io = static_find_io, .find_mem = NULL, .add_io = NULL, .add_mem = NULL, .init = static_init, .exit = NULL, }; -EXPORT_SYMBOL(pccard_iodyn_ops); +EXPORT_SYMBOL(pccard_static_ops); + -#endif /* CONFIG_PCCARD_IODYN */ +MODULE_AUTHOR("David A. Hinds, Dominik Brodowski"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("rsrc_nonstatic"); diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index a6eb7b59ba9f..dcd1a4ad3d63 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -34,8 +34,10 @@ #include <pcmcia/cistpl.h> #include "cs_internal.h" +/* moved to rsrc_mgr.c MODULE_AUTHOR("David A. Hinds, Dominik Brodowski"); MODULE_LICENSE("GPL"); +*/ /* Parameters that can be set with 'insmod' */ @@ -70,27 +72,13 @@ struct socket_data { ======================================================================*/ static struct resource * -make_resource(resource_size_t b, resource_size_t n, int flags, const char *name) -{ - struct resource *res = kzalloc(sizeof(*res), GFP_KERNEL); - - if (res) { - res->name = name; - res->start = b; - res->end = b + n - 1; - res->flags = flags; - } - return res; -} - -static struct resource * claim_region(struct pcmcia_socket *s, resource_size_t base, resource_size_t size, int type, char *name) { struct resource *res, *parent; parent = type & IORESOURCE_MEM ? &iomem_resource : &ioport_resource; - res = make_resource(base, size, type | IORESOURCE_BUSY, name); + res = pcmcia_make_resource(base, size, type | IORESOURCE_BUSY, name); if (res) { #ifdef CONFIG_PCI @@ -661,8 +649,9 @@ pcmcia_align(void *align_data, const struct resource *res, * Adjust an existing IO region allocation, but making sure that we don't * encroach outside the resources which the user supplied. */ -static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_start, - unsigned long r_end, struct pcmcia_socket *s) +static int __nonstatic_adjust_io_region(struct pcmcia_socket *s, + unsigned long r_start, + unsigned long r_end) { struct resource_map *m; struct socket_data *s_data = s->resource_data; @@ -675,8 +664,7 @@ static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_star if (start > r_start || r_end > end) continue; - ret = adjust_resource(res, r_start, r_end - r_start + 1); - break; + ret = 0; } return ret; @@ -695,18 +683,17 @@ static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_star ======================================================================*/ -static struct resource *nonstatic_find_io_region(unsigned long base, int num, - unsigned long align, struct pcmcia_socket *s) +static struct resource *__nonstatic_find_io_region(struct pcmcia_socket *s, + unsigned long base, int num, + unsigned long align) { - struct resource *res = make_resource(0, num, IORESOURCE_IO, dev_name(&s->dev)); + struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO, + dev_name(&s->dev)); struct socket_data *s_data = s->resource_data; struct pcmcia_align_data data; unsigned long min = base; int ret; - if (align == 0) - align = 0x10000; - data.mask = align - 1; data.offset = base & data.mask; data.map = &s_data->io_db; @@ -727,10 +714,97 @@ static struct resource *nonstatic_find_io_region(unsigned long base, int num, return res; } +static int nonstatic_find_io(struct pcmcia_socket *s, unsigned int attr, + unsigned int *base, unsigned int num, + unsigned int align) +{ + int i, ret = 0; + + /* Check for an already-allocated window that must conflict with + * what was asked for. It is a hack because it does not catch all + * potential conflicts, just the most obvious ones. + */ + for (i = 0; i < MAX_IO_WIN; i++) { + if (!s->io[i].res) + continue; + + if (!*base) + continue; + + if ((s->io[i].res->start & (align-1)) == *base) + return -EBUSY; + } + + for (i = 0; i < MAX_IO_WIN; i++) { + struct resource *res = s->io[i].res; + unsigned int try; + + if (res && (res->flags & IORESOURCE_BITS) != + (attr & IORESOURCE_BITS)) + continue; + + if (!res) { + if (align == 0) + align = 0x10000; + + res = s->io[i].res = __nonstatic_find_io_region(s, + *base, num, + align); + if (!res) + return -EINVAL; + + *base = res->start; + s->io[i].res->flags = + ((res->flags & ~IORESOURCE_BITS) | + (attr & IORESOURCE_BITS)); + s->io[i].InUse = num; + return 0; + } + + /* Try to extend top of window */ + try = res->end + 1; + if ((*base == 0) || (*base == try)) { + ret = __nonstatic_adjust_io_region(s, res->start, + res->end + num); + if (!ret) { + ret = adjust_resource(s->io[i].res, res->start, + res->end - res->start + num + 1); + if (ret) + continue; + *base = try; + s->io[i].InUse += num; + return 0; + } + } + + /* Try to extend bottom of window */ + try = res->start - num; + if ((*base == 0) || (*base == try)) { + ret = __nonstatic_adjust_io_region(s, + res->start - num, + res->end); + if (!ret) { + ret = adjust_resource(s->io[i].res, + res->start - num, + res->end - res->start + num + 1); + if (ret) + continue; + *base = try; + s->io[i].InUse += num; + return 0; + } + } + } + + return -EINVAL; +} + + static struct resource *nonstatic_find_mem_region(u_long base, u_long num, u_long align, int low, struct pcmcia_socket *s) { - struct resource *res = make_resource(0, num, IORESOURCE_MEM, dev_name(&s->dev)); + struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_MEM, + dev_name(&s->dev)); struct socket_data *s_data = s->resource_data; struct pcmcia_align_data data; unsigned long min, max; @@ -861,23 +935,42 @@ static int nonstatic_autoadd_resources(struct pcmcia_socket *s) return -ENODEV; #if defined(CONFIG_X86) - /* If this is the root bus, the risk of hitting - * some strange system devices which aren't protected - * by either ACPI resource tables or properly requested - * resources is too big. Therefore, don't do auto-adding - * of resources at the moment. + /* If this is the root bus, the risk of hitting some strange + * system devices is too high: If a driver isn't loaded, the + * resources are not claimed; even if a driver is loaded, it + * may not request all resources or even the wrong one. We + * can neither trust the rest of the kernel nor ACPI/PNP and + * CRS parsing to get it right. Therefore, use several + * safeguards: + * + * - Do not auto-add resources if the CardBus bridge is on + * the PCI root bus + * + * - Avoid any I/O ports < 0x100. + * + * - On PCI-PCI bridges, only use resources which are set up + * exclusively for the secondary PCI bus: the risk of hitting + * system devices is quite low, as they usually aren't + * connected to the secondary PCI bus. */ if (s->cb_dev->bus->number == 0) return -EINVAL; -#endif + for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; i++) { + res = s->cb_dev->bus->resource[i]; +#else pci_bus_for_each_resource(s->cb_dev->bus, res, i) { +#endif if (!res) continue; if (res->flags & IORESOURCE_IO) { + /* safeguard against the root resource, where the + * risk of hitting any other device would be too + * high */ if (res == &ioport_resource) continue; + dev_printk(KERN_INFO, &s->cb_dev->dev, "pcmcia: parent PCI bridge window: %pR\n", res); @@ -887,8 +980,12 @@ static int nonstatic_autoadd_resources(struct pcmcia_socket *s) } if (res->flags & IORESOURCE_MEM) { + /* safeguard against the root resource, where the + * risk of hitting any other device would be too + * high */ if (res == &iomem_resource) continue; + dev_printk(KERN_INFO, &s->cb_dev->dev, "pcmcia: parent PCI bridge window: %pR\n", res); @@ -956,8 +1053,7 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s) struct pccard_resource_ops pccard_nonstatic_ops = { .validate_mem = pcmcia_nonstatic_validate_mem, - .adjust_io_region = nonstatic_adjust_io_region, - .find_io = nonstatic_find_io_region, + .find_io = nonstatic_find_io, .find_mem = nonstatic_find_mem_region, .add_io = adjust_io, .add_mem = adjust_memory, diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 83ace277426c..424e576f3acb 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -1303,13 +1303,6 @@ static int yenta_dev_suspend_noirq(struct device *dev) pci_read_config_dword(pdev, 17*4, &socket->saved_state[1]); pci_disable_device(pdev); - /* - * Some laptops (IBM T22) do not like us putting the Cardbus - * bridge into D3. At a guess, some other laptop will - * probably require this, so leave it commented out for now. - */ - /* pci_set_power_state(dev, 3); */ - return 0; } diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c index 3cbaf1811bd0..d37c445f0eda 100644 --- a/drivers/ps3/ps3-sys-manager.c +++ b/drivers/ps3/ps3-sys-manager.c @@ -119,7 +119,7 @@ enum ps3_sys_manager_service_id { * enum ps3_sys_manager_attr - Notification attribute (bit position mask). * @PS3_SM_ATTR_POWER: Power button. * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. - * @PS3_SM_ATTR_THERMAL: Sytem thermal alert. + * @PS3_SM_ATTR_THERMAL: System thermal alert. * @PS3_SM_ATTR_CONTROLLER: Remote controller event. * @PS3_SM_ATTR_ALL: Logical OR of all. * diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 2b4e40d31190..51cf2bb37438 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1540,7 +1540,7 @@ EXPORT_SYMBOL_GPL(regulator_count_voltages); * Context: can sleep * * Returns a voltage that can be passed to @regulator_set_voltage(), - * zero if this selector code can't be used on this sytem, or a + * zero if this selector code can't be used on this system, or a * negative errno. */ int regulator_list_voltage(struct regulator *regulator, unsigned selector) diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 6a1303759432..50ac047cd136 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -620,6 +620,16 @@ config RTC_DRV_NUC900 comment "on-CPU RTC drivers" +config RTC_DRV_DAVINCI + tristate "TI DaVinci RTC" + depends on ARCH_DAVINCI_DM365 + help + If you say yes here you get support for the RTC on the + DaVinci platforms (DM365). + + This driver can also be built as a module. If so, the module + will be called rtc-davinci. + config RTC_DRV_OMAP tristate "TI OMAP1" depends on ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_DAVINCI_DA8XX diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile index 44ef194a9573..245311a1348f 100644 --- a/drivers/rtc/Makefile +++ b/drivers/rtc/Makefile @@ -27,6 +27,7 @@ obj-$(CONFIG_RTC_DRV_BQ32K) += rtc-bq32k.o obj-$(CONFIG_RTC_DRV_BQ4802) += rtc-bq4802.o obj-$(CONFIG_RTC_DRV_CMOS) += rtc-cmos.o obj-$(CONFIG_RTC_DRV_COH901331) += rtc-coh901331.o +obj-$(CONFIG_RTC_DRV_DAVINCI) += rtc-davinci.o obj-$(CONFIG_RTC_DRV_DM355EVM) += rtc-dm355evm.o obj-$(CONFIG_RTC_DRV_DS1216) += rtc-ds1216.o obj-$(CONFIG_RTC_DRV_DS1286) += rtc-ds1286.o diff --git a/drivers/rtc/rtc-davinci.c b/drivers/rtc/rtc-davinci.c new file mode 100644 index 000000000000..92a8f6cacda9 --- /dev/null +++ b/drivers/rtc/rtc-davinci.c @@ -0,0 +1,673 @@ +/* + * DaVinci Power Management and Real Time Clock Driver for TI platforms + * + * Copyright (C) 2009 Texas Instruments, Inc + * + * Author: Miguel Aguilar <miguel.aguilar@ridgerun.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/ioport.h> +#include <linux/delay.h> +#include <linux/spinlock.h> +#include <linux/rtc.h> +#include <linux/bcd.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +/* + * The DaVinci RTC is a simple RTC with the following + * Sec: 0 - 59 : BCD count + * Min: 0 - 59 : BCD count + * Hour: 0 - 23 : BCD count + * Day: 0 - 0x7FFF(32767) : Binary count ( Over 89 years ) + */ + +/* PRTC interface registers */ +#define DAVINCI_PRTCIF_PID 0x00 +#define PRTCIF_CTLR 0x04 +#define PRTCIF_LDATA 0x08 +#define PRTCIF_UDATA 0x0C +#define PRTCIF_INTEN 0x10 +#define PRTCIF_INTFLG 0x14 + +/* PRTCIF_CTLR bit fields */ +#define PRTCIF_CTLR_BUSY BIT(31) +#define PRTCIF_CTLR_SIZE BIT(25) +#define PRTCIF_CTLR_DIR BIT(24) +#define PRTCIF_CTLR_BENU_MSB BIT(23) +#define PRTCIF_CTLR_BENU_3RD_BYTE BIT(22) +#define PRTCIF_CTLR_BENU_2ND_BYTE BIT(21) +#define PRTCIF_CTLR_BENU_LSB BIT(20) +#define PRTCIF_CTLR_BENU_MASK (0x00F00000) +#define PRTCIF_CTLR_BENL_MSB BIT(19) +#define PRTCIF_CTLR_BENL_3RD_BYTE BIT(18) +#define PRTCIF_CTLR_BENL_2ND_BYTE BIT(17) +#define PRTCIF_CTLR_BENL_LSB BIT(16) +#define PRTCIF_CTLR_BENL_MASK (0x000F0000) + +/* PRTCIF_INTEN bit fields */ +#define PRTCIF_INTEN_RTCSS BIT(1) +#define PRTCIF_INTEN_RTCIF BIT(0) +#define PRTCIF_INTEN_MASK (PRTCIF_INTEN_RTCSS \ + | PRTCIF_INTEN_RTCIF) + +/* PRTCIF_INTFLG bit fields */ +#define PRTCIF_INTFLG_RTCSS BIT(1) +#define PRTCIF_INTFLG_RTCIF BIT(0) +#define PRTCIF_INTFLG_MASK (PRTCIF_INTFLG_RTCSS \ + | PRTCIF_INTFLG_RTCIF) + +/* PRTC subsystem registers */ +#define PRTCSS_RTC_INTC_EXTENA1 (0x0C) +#define PRTCSS_RTC_CTRL (0x10) +#define PRTCSS_RTC_WDT (0x11) +#define PRTCSS_RTC_TMR0 (0x12) +#define PRTCSS_RTC_TMR1 (0x13) +#define PRTCSS_RTC_CCTRL (0x14) +#define PRTCSS_RTC_SEC (0x15) +#define PRTCSS_RTC_MIN (0x16) +#define PRTCSS_RTC_HOUR (0x17) +#define PRTCSS_RTC_DAY0 (0x18) +#define PRTCSS_RTC_DAY1 (0x19) +#define PRTCSS_RTC_AMIN (0x1A) +#define PRTCSS_RTC_AHOUR (0x1B) +#define PRTCSS_RTC_ADAY0 (0x1C) +#define PRTCSS_RTC_ADAY1 (0x1D) +#define PRTCSS_RTC_CLKC_CNT (0x20) + +/* PRTCSS_RTC_INTC_EXTENA1 */ +#define PRTCSS_RTC_INTC_EXTENA1_MASK (0x07) + +/* PRTCSS_RTC_CTRL bit fields */ +#define PRTCSS_RTC_CTRL_WDTBUS BIT(7) +#define PRTCSS_RTC_CTRL_WEN BIT(6) +#define PRTCSS_RTC_CTRL_WDRT BIT(5) +#define PRTCSS_RTC_CTRL_WDTFLG BIT(4) +#define PRTCSS_RTC_CTRL_TE BIT(3) +#define PRTCSS_RTC_CTRL_TIEN BIT(2) +#define PRTCSS_RTC_CTRL_TMRFLG BIT(1) +#define PRTCSS_RTC_CTRL_TMMD BIT(0) + +/* PRTCSS_RTC_CCTRL bit fields */ +#define PRTCSS_RTC_CCTRL_CALBUSY BIT(7) +#define PRTCSS_RTC_CCTRL_DAEN BIT(5) +#define PRTCSS_RTC_CCTRL_HAEN BIT(4) +#define PRTCSS_RTC_CCTRL_MAEN BIT(3) +#define PRTCSS_RTC_CCTRL_ALMFLG BIT(2) +#define PRTCSS_RTC_CCTRL_AIEN BIT(1) +#define PRTCSS_RTC_CCTRL_CAEN BIT(0) + +static DEFINE_SPINLOCK(davinci_rtc_lock); + +struct davinci_rtc { + struct rtc_device *rtc; + void __iomem *base; + resource_size_t pbase; + size_t base_size; + int irq; +}; + +static inline void rtcif_write(struct davinci_rtc *davinci_rtc, + u32 val, u32 addr) +{ + writel(val, davinci_rtc->base + addr); +} + +static inline u32 rtcif_read(struct davinci_rtc *davinci_rtc, u32 addr) +{ + return readl(davinci_rtc->base + addr); +} + +static inline void rtcif_wait(struct davinci_rtc *davinci_rtc) +{ + while (rtcif_read(davinci_rtc, PRTCIF_CTLR) & PRTCIF_CTLR_BUSY) + cpu_relax(); +} + +static inline void rtcss_write(struct davinci_rtc *davinci_rtc, + unsigned long val, u8 addr) +{ + rtcif_wait(davinci_rtc); + + rtcif_write(davinci_rtc, PRTCIF_CTLR_BENL_LSB | addr, PRTCIF_CTLR); + rtcif_write(davinci_rtc, val, PRTCIF_LDATA); + + rtcif_wait(davinci_rtc); +} + +static inline u8 rtcss_read(struct davinci_rtc *davinci_rtc, u8 addr) +{ + rtcif_wait(davinci_rtc); + + rtcif_write(davinci_rtc, PRTCIF_CTLR_DIR | PRTCIF_CTLR_BENL_LSB | addr, + PRTCIF_CTLR); + + rtcif_wait(davinci_rtc); + + return rtcif_read(davinci_rtc, PRTCIF_LDATA); +} + +static inline void davinci_rtcss_calendar_wait(struct davinci_rtc *davinci_rtc) +{ + while (rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL) & + PRTCSS_RTC_CCTRL_CALBUSY) + cpu_relax(); +} + +static irqreturn_t davinci_rtc_interrupt(int irq, void *class_dev) +{ + struct davinci_rtc *davinci_rtc = class_dev; + unsigned long events = 0; + u32 irq_flg; + u8 alm_irq, tmr_irq; + u8 rtc_ctrl, rtc_cctrl; + int ret = IRQ_NONE; + + irq_flg = rtcif_read(davinci_rtc, PRTCIF_INTFLG) & + PRTCIF_INTFLG_RTCSS; + + alm_irq = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL) & + PRTCSS_RTC_CCTRL_ALMFLG; + + tmr_irq = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL) & + PRTCSS_RTC_CTRL_TMRFLG; + + if (irq_flg) { + if (alm_irq) { + events |= RTC_IRQF | RTC_AF; + rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL); + rtc_cctrl |= PRTCSS_RTC_CCTRL_ALMFLG; + rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL); + } else if (tmr_irq) { + events |= RTC_IRQF | RTC_PF; + rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL); + rtc_ctrl |= PRTCSS_RTC_CTRL_TMRFLG; + rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL); + } + + rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS, + PRTCIF_INTFLG); + rtc_update_irq(davinci_rtc->rtc, 1, events); + + ret = IRQ_HANDLED; + } + + return ret; +} + +static int +davinci_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + u8 rtc_ctrl; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL); + + switch (cmd) { + case RTC_WIE_ON: + rtc_ctrl |= PRTCSS_RTC_CTRL_WEN | PRTCSS_RTC_CTRL_WDTFLG; + break; + case RTC_WIE_OFF: + rtc_ctrl &= ~PRTCSS_RTC_CTRL_WEN; + break; + case RTC_UIE_OFF: + case RTC_UIE_ON: + ret = -ENOTTY; + break; + default: + ret = -ENOIOCTLCMD; + } + + rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + return ret; +} + +static int convertfromdays(u16 days, struct rtc_time *tm) +{ + int tmp_days, year, mon; + + for (year = 2000;; year++) { + tmp_days = rtc_year_days(1, 12, year); + if (days >= tmp_days) + days -= tmp_days; + else { + for (mon = 0;; mon++) { + tmp_days = rtc_month_days(mon, year); + if (days >= tmp_days) { + days -= tmp_days; + } else { + tm->tm_year = year - 1900; + tm->tm_mon = mon; + tm->tm_mday = days + 1; + break; + } + } + break; + } + } + return 0; +} + +static int convert2days(u16 *days, struct rtc_time *tm) +{ + int i; + *days = 0; + + /* epoch == 1900 */ + if (tm->tm_year < 100 || tm->tm_year > 199) + return -EINVAL; + + for (i = 2000; i < 1900 + tm->tm_year; i++) + *days += rtc_year_days(1, 12, i); + + *days += rtc_year_days(tm->tm_mday, tm->tm_mon, 1900 + tm->tm_year); + + return 0; +} + +static int davinci_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + u16 days = 0; + u8 day0, day1; + unsigned long flags; + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + davinci_rtcss_calendar_wait(davinci_rtc); + tm->tm_sec = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_SEC)); + + davinci_rtcss_calendar_wait(davinci_rtc); + tm->tm_min = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_MIN)); + + davinci_rtcss_calendar_wait(davinci_rtc); + tm->tm_hour = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_HOUR)); + + davinci_rtcss_calendar_wait(davinci_rtc); + day0 = rtcss_read(davinci_rtc, PRTCSS_RTC_DAY0); + + davinci_rtcss_calendar_wait(davinci_rtc); + day1 = rtcss_read(davinci_rtc, PRTCSS_RTC_DAY1); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + days |= day1; + days <<= 8; + days |= day0; + + if (convertfromdays(days, tm) < 0) + return -EINVAL; + + return 0; +} + +static int davinci_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + u16 days; + u8 rtc_cctrl; + unsigned long flags; + + if (convert2days(&days, tm) < 0) + return -EINVAL; + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, bin2bcd(tm->tm_sec), PRTCSS_RTC_SEC); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, bin2bcd(tm->tm_min), PRTCSS_RTC_MIN); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, bin2bcd(tm->tm_hour), PRTCSS_RTC_HOUR); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, days & 0xFF, PRTCSS_RTC_DAY0); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, (days & 0xFF00) >> 8, PRTCSS_RTC_DAY1); + + rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL); + rtc_cctrl |= PRTCSS_RTC_CCTRL_CAEN; + rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + return 0; +} + +static int davinci_rtc_alarm_irq_enable(struct device *dev, + unsigned int enabled) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + unsigned long flags; + u8 rtc_cctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CCTRL); + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + if (enabled) + rtc_cctrl |= PRTCSS_RTC_CCTRL_DAEN | + PRTCSS_RTC_CCTRL_HAEN | + PRTCSS_RTC_CCTRL_MAEN | + PRTCSS_RTC_CCTRL_ALMFLG | + PRTCSS_RTC_CCTRL_AIEN; + else + rtc_cctrl &= ~PRTCSS_RTC_CCTRL_AIEN; + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, rtc_cctrl, PRTCSS_RTC_CCTRL); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + return 0; +} + +static int davinci_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + u16 days = 0; + u8 day0, day1; + unsigned long flags; + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + davinci_rtcss_calendar_wait(davinci_rtc); + alm->time.tm_min = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_AMIN)); + + davinci_rtcss_calendar_wait(davinci_rtc); + alm->time.tm_hour = bcd2bin(rtcss_read(davinci_rtc, PRTCSS_RTC_AHOUR)); + + davinci_rtcss_calendar_wait(davinci_rtc); + day0 = rtcss_read(davinci_rtc, PRTCSS_RTC_ADAY0); + + davinci_rtcss_calendar_wait(davinci_rtc); + day1 = rtcss_read(davinci_rtc, PRTCSS_RTC_ADAY1); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + days |= day1; + days <<= 8; + days |= day0; + + if (convertfromdays(days, &alm->time) < 0) + return -EINVAL; + + alm->pending = !!(rtcss_read(davinci_rtc, + PRTCSS_RTC_CCTRL) & + PRTCSS_RTC_CCTRL_AIEN); + alm->enabled = alm->pending && device_may_wakeup(dev); + + return 0; +} + +static int davinci_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + unsigned long flags; + u16 days; + + if (alm->time.tm_mday <= 0 && alm->time.tm_mon < 0 + && alm->time.tm_year < 0) { + struct rtc_time tm; + unsigned long now, then; + + davinci_rtc_read_time(dev, &tm); + rtc_tm_to_time(&tm, &now); + + alm->time.tm_mday = tm.tm_mday; + alm->time.tm_mon = tm.tm_mon; + alm->time.tm_year = tm.tm_year; + rtc_tm_to_time(&alm->time, &then); + + if (then < now) { + rtc_time_to_tm(now + 24 * 60 * 60, &tm); + alm->time.tm_mday = tm.tm_mday; + alm->time.tm_mon = tm.tm_mon; + alm->time.tm_year = tm.tm_year; + } + } + + if (convert2days(&days, &alm->time) < 0) + return -EINVAL; + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, bin2bcd(alm->time.tm_min), PRTCSS_RTC_AMIN); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, bin2bcd(alm->time.tm_hour), PRTCSS_RTC_AHOUR); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, days & 0xFF, PRTCSS_RTC_ADAY0); + + davinci_rtcss_calendar_wait(davinci_rtc); + rtcss_write(davinci_rtc, (days & 0xFF00) >> 8, PRTCSS_RTC_ADAY1); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + return 0; +} + +static int davinci_rtc_irq_set_state(struct device *dev, int enabled) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + unsigned long flags; + u8 rtc_ctrl; + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + rtc_ctrl = rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL); + + if (enabled) { + while (rtcss_read(davinci_rtc, PRTCSS_RTC_CTRL) + & PRTCSS_RTC_CTRL_WDTBUS) + cpu_relax(); + + rtc_ctrl |= PRTCSS_RTC_CTRL_TE; + rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL); + + rtcss_write(davinci_rtc, 0x0, PRTCSS_RTC_CLKC_CNT); + + rtc_ctrl |= PRTCSS_RTC_CTRL_TIEN | + PRTCSS_RTC_CTRL_TMMD | + PRTCSS_RTC_CTRL_TMRFLG; + } else + rtc_ctrl &= ~PRTCSS_RTC_CTRL_TIEN; + + rtcss_write(davinci_rtc, rtc_ctrl, PRTCSS_RTC_CTRL); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + return 0; +} + +static int davinci_rtc_irq_set_freq(struct device *dev, int freq) +{ + struct davinci_rtc *davinci_rtc = dev_get_drvdata(dev); + unsigned long flags; + u16 tmr_counter = (0x8000 >> (ffs(freq) - 1)); + + spin_lock_irqsave(&davinci_rtc_lock, flags); + + rtcss_write(davinci_rtc, tmr_counter & 0xFF, PRTCSS_RTC_TMR0); + rtcss_write(davinci_rtc, (tmr_counter & 0xFF00) >> 8, PRTCSS_RTC_TMR1); + + spin_unlock_irqrestore(&davinci_rtc_lock, flags); + + return 0; +} + +static struct rtc_class_ops davinci_rtc_ops = { + .ioctl = davinci_rtc_ioctl, + .read_time = davinci_rtc_read_time, + .set_time = davinci_rtc_set_time, + .alarm_irq_enable = davinci_rtc_alarm_irq_enable, + .read_alarm = davinci_rtc_read_alarm, + .set_alarm = davinci_rtc_set_alarm, + .irq_set_state = davinci_rtc_irq_set_state, + .irq_set_freq = davinci_rtc_irq_set_freq, +}; + +static int __init davinci_rtc_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct davinci_rtc *davinci_rtc; + struct resource *res, *mem; + int ret = 0; + + davinci_rtc = kzalloc(sizeof(struct davinci_rtc), GFP_KERNEL); + if (!davinci_rtc) { + dev_dbg(dev, "could not allocate memory for private data\n"); + return -ENOMEM; + } + + davinci_rtc->irq = platform_get_irq(pdev, 0); + if (davinci_rtc->irq < 0) { + dev_err(dev, "no RTC irq\n"); + ret = davinci_rtc->irq; + goto fail1; + } + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "no mem resource\n"); + ret = -EINVAL; + goto fail1; + } + + davinci_rtc->pbase = res->start; + davinci_rtc->base_size = resource_size(res); + + mem = request_mem_region(davinci_rtc->pbase, davinci_rtc->base_size, + pdev->name); + if (!mem) { + dev_err(dev, "RTC registers at %08x are not free\n", + davinci_rtc->pbase); + ret = -EBUSY; + goto fail1; + } + + davinci_rtc->base = ioremap(davinci_rtc->pbase, davinci_rtc->base_size); + if (!davinci_rtc->base) { + dev_err(dev, "unable to ioremap MEM resource\n"); + ret = -ENOMEM; + goto fail2; + } + + davinci_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, + &davinci_rtc_ops, THIS_MODULE); + if (IS_ERR(davinci_rtc->rtc)) { + dev_err(dev, "unable to register RTC device, err %ld\n", + PTR_ERR(davinci_rtc->rtc)); + goto fail3; + } + + rtcif_write(davinci_rtc, PRTCIF_INTFLG_RTCSS, PRTCIF_INTFLG); + rtcif_write(davinci_rtc, 0, PRTCIF_INTEN); + rtcss_write(davinci_rtc, 0, PRTCSS_RTC_INTC_EXTENA1); + + rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CTRL); + rtcss_write(davinci_rtc, 0, PRTCSS_RTC_CCTRL); + + ret = request_irq(davinci_rtc->irq, davinci_rtc_interrupt, + IRQF_DISABLED, "davinci_rtc", davinci_rtc); + if (ret < 0) { + dev_err(dev, "unable to register davinci RTC interrupt\n"); + goto fail4; + } + + /* Enable interrupts */ + rtcif_write(davinci_rtc, PRTCIF_INTEN_RTCSS, PRTCIF_INTEN); + rtcss_write(davinci_rtc, PRTCSS_RTC_INTC_EXTENA1_MASK, + PRTCSS_RTC_INTC_EXTENA1); + + rtcss_write(davinci_rtc, PRTCSS_RTC_CCTRL_CAEN, PRTCSS_RTC_CCTRL); + + platform_set_drvdata(pdev, davinci_rtc); + + device_init_wakeup(&pdev->dev, 0); + + return 0; + +fail4: + rtc_device_unregister(davinci_rtc->rtc); +fail3: + iounmap(davinci_rtc->base); +fail2: + release_mem_region(davinci_rtc->pbase, davinci_rtc->base_size); +fail1: + kfree(davinci_rtc); + + return ret; +} + +static int __devexit davinci_rtc_remove(struct platform_device *pdev) +{ + struct davinci_rtc *davinci_rtc = platform_get_drvdata(pdev); + + device_init_wakeup(&pdev->dev, 0); + + rtcif_write(davinci_rtc, 0, PRTCIF_INTEN); + + free_irq(davinci_rtc->irq, davinci_rtc); + + rtc_device_unregister(davinci_rtc->rtc); + + iounmap(davinci_rtc->base); + release_mem_region(davinci_rtc->pbase, davinci_rtc->base_size); + + platform_set_drvdata(pdev, NULL); + + kfree(davinci_rtc); + + return 0; +} + +static struct platform_driver davinci_rtc_driver = { + .probe = davinci_rtc_probe, + .remove = __devexit_p(davinci_rtc_remove), + .driver = { + .name = "rtc_davinci", + .owner = THIS_MODULE, + }, +}; + +static int __init rtc_init(void) +{ + return platform_driver_probe(&davinci_rtc_driver, davinci_rtc_probe); +} +module_init(rtc_init); + +static void __exit rtc_exit(void) +{ + platform_driver_unregister(&davinci_rtc_driver); +} +module_exit(rtc_exit); + +MODULE_AUTHOR("Miguel Aguilar <miguel.aguilar@ridgerun.com>"); +MODULE_DESCRIPTION("Texas Instruments DaVinci PRTC Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c index c9522f3bc21c..9718aaaa8215 100644 --- a/drivers/rtc/rtc-rx8581.c +++ b/drivers/rtc/rtc-rx8581.c @@ -1,8 +1,8 @@ /* * An I2C driver for the Epson RX8581 RTC * - * Author: Martyn Welch <martyn.welch@gefanuc.com> - * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc. + * Author: Martyn Welch <martyn.welch@ge.com> + * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -272,7 +272,7 @@ static void __exit rx8581_exit(void) i2c_del_driver(&rx8581_driver); } -MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com>"); +MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>"); MODULE_DESCRIPTION("Epson RX-8581 RTC driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c index 875ba099e7a5..b53a00198dbe 100644 --- a/drivers/rtc/rtc-stk17ta8.c +++ b/drivers/rtc/rtc-stk17ta8.c @@ -1,7 +1,7 @@ /* * A RTC driver for the Simtek STK17TA8 * - * By Thomas Hommel <thomas.hommel@gefanuc.com> + * By Thomas Hommel <thomas.hommel@ge.com> * * Based on the DS1553 driver from * Atsushi Nemoto <anemo@mba.ocn.ne.jp> @@ -382,7 +382,7 @@ static __exit void stk17ta8_exit(void) module_init(stk17ta8_init); module_exit(stk17ta8_exit); -MODULE_AUTHOR("Thomas Hommel <thomas.hommel@gefanuc.com>"); +MODULE_AUTHOR("Thomas Hommel <thomas.hommel@ge.com>"); MODULE_DESCRIPTION("Simtek STK17TA8 RTC driver"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index fa2339cb1681..0e86247d791e 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -65,6 +65,7 @@ static void dasd_device_tasklet(struct dasd_device *); static void dasd_block_tasklet(struct dasd_block *); static void do_kick_device(struct work_struct *); static void do_restore_device(struct work_struct *); +static void do_reload_device(struct work_struct *); static void dasd_return_cqr_cb(struct dasd_ccw_req *, void *); static void dasd_device_timeout(unsigned long); static void dasd_block_timeout(unsigned long); @@ -115,6 +116,7 @@ struct dasd_device *dasd_alloc_device(void) device->timer.data = (unsigned long) device; INIT_WORK(&device->kick_work, do_kick_device); INIT_WORK(&device->restore_device, do_restore_device); + INIT_WORK(&device->reload_device, do_reload_device); device->state = DASD_STATE_NEW; device->target = DASD_STATE_NEW; mutex_init(&device->state_mutex); @@ -521,6 +523,26 @@ void dasd_kick_device(struct dasd_device *device) } /* + * dasd_reload_device will schedule a call do do_reload_device to the kernel + * event daemon. + */ +static void do_reload_device(struct work_struct *work) +{ + struct dasd_device *device = container_of(work, struct dasd_device, + reload_device); + device->discipline->reload(device); + dasd_put_device(device); +} + +void dasd_reload_device(struct dasd_device *device) +{ + dasd_get_device(device); + /* queue call to dasd_reload_device to the kernel event daemon. */ + schedule_work(&device->reload_device); +} +EXPORT_SYMBOL(dasd_reload_device); + +/* * dasd_restore_device will schedule a call do do_restore_device to the kernel * event daemon. */ diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c index 6632649dd6aa..85bfd8794856 100644 --- a/drivers/s390/block/dasd_3990_erp.c +++ b/drivers/s390/block/dasd_3990_erp.c @@ -1418,9 +1418,29 @@ static struct dasd_ccw_req *dasd_3990_erp_inspect_alias( struct dasd_ccw_req *erp) { struct dasd_ccw_req *cqr = erp->refers; + char *sense; if (cqr->block && (cqr->block->base != cqr->startdev)) { + + sense = dasd_get_sense(&erp->refers->irb); + /* + * dynamic pav may have changed base alias mapping + */ + if (!test_bit(DASD_FLAG_OFFLINE, &cqr->startdev->flags) && sense + && (sense[0] == 0x10) && (sense[7] == 0x0F) + && (sense[8] == 0x67)) { + /* + * remove device from alias handling to prevent new + * requests from being scheduled on the + * wrong alias device + */ + dasd_alias_remove_device(cqr->startdev); + + /* schedule worker to reload device */ + dasd_reload_device(cqr->startdev); + } + if (cqr->startdev->features & DASD_FEATURE_ERPLOG) { DBF_DEV_EVENT(DBF_ERR, cqr->startdev, "ERP on alias device for request %p," diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c index 8c4814258e93..4155805dcdff 100644 --- a/drivers/s390/block/dasd_alias.c +++ b/drivers/s390/block/dasd_alias.c @@ -190,20 +190,21 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) struct alias_server *server, *newserver; struct alias_lcu *lcu, *newlcu; int is_lcu_known; - struct dasd_uid *uid; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; + + device->discipline->get_uid(device, &uid); spin_lock_irqsave(&aliastree.lock, flags); is_lcu_known = 1; - server = _find_server(uid); + server = _find_server(&uid); if (!server) { spin_unlock_irqrestore(&aliastree.lock, flags); - newserver = _allocate_server(uid); + newserver = _allocate_server(&uid); if (IS_ERR(newserver)) return PTR_ERR(newserver); spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(uid); + server = _find_server(&uid); if (!server) { list_add(&newserver->server, &aliastree.serverlist); server = newserver; @@ -214,14 +215,14 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) } } - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); if (!lcu) { spin_unlock_irqrestore(&aliastree.lock, flags); - newlcu = _allocate_lcu(uid); + newlcu = _allocate_lcu(&uid); if (IS_ERR(newlcu)) return PTR_ERR(newlcu); spin_lock_irqsave(&aliastree.lock, flags); - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); if (!lcu) { list_add(&newlcu->lcu, &server->lculist); lcu = newlcu; @@ -256,20 +257,20 @@ void dasd_alias_lcu_setup_complete(struct dasd_device *device) unsigned long flags; struct alias_server *server; struct alias_lcu *lcu; - struct dasd_uid *uid; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; + device->discipline->get_uid(device, &uid); lcu = NULL; spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(uid); + server = _find_server(&uid); if (server) - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); spin_unlock_irqrestore(&aliastree.lock, flags); if (!lcu) { DBF_EVENT_DEVID(DBF_ERR, device->cdev, "could not find lcu for %04x %02x", - uid->ssid, uid->real_unit_addr); + uid.ssid, uid.real_unit_addr); WARN_ON(1); return; } @@ -282,20 +283,20 @@ void dasd_alias_wait_for_lcu_setup(struct dasd_device *device) unsigned long flags; struct alias_server *server; struct alias_lcu *lcu; - struct dasd_uid *uid; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; + device->discipline->get_uid(device, &uid); lcu = NULL; spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(uid); + server = _find_server(&uid); if (server) - lcu = _find_lcu(server, uid); + lcu = _find_lcu(server, &uid); spin_unlock_irqrestore(&aliastree.lock, flags); if (!lcu) { DBF_EVENT_DEVID(DBF_ERR, device->cdev, "could not find lcu for %04x %02x", - uid->ssid, uid->real_unit_addr); + uid.ssid, uid.real_unit_addr); WARN_ON(1); return; } @@ -314,9 +315,11 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) struct alias_lcu *lcu; struct alias_server *server; int was_pending; + struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; lcu = private->lcu; + device->discipline->get_uid(device, &uid); spin_lock_irqsave(&lcu->lock, flags); list_del_init(&device->alias_list); /* make sure that the workers don't use this device */ @@ -353,7 +356,7 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) _schedule_lcu_update(lcu, NULL); spin_unlock(&lcu->lock); } - server = _find_server(&private->uid); + server = _find_server(&uid); if (server && list_empty(&server->lculist)) { list_del(&server->server); _free_server(server); @@ -366,19 +369,30 @@ void dasd_alias_disconnect_device_from_lcu(struct dasd_device *device) * in the lcu is up to date and will update the device uid before * adding it to a pav group. */ + static int _add_device_to_lcu(struct alias_lcu *lcu, - struct dasd_device *device) + struct dasd_device *device, + struct dasd_device *pos) { struct dasd_eckd_private *private; struct alias_pav_group *group; - struct dasd_uid *uid; + struct dasd_uid uid; + unsigned long flags; private = (struct dasd_eckd_private *) device->private; - uid = &private->uid; - uid->type = lcu->uac->unit[uid->real_unit_addr].ua_type; - uid->base_unit_addr = lcu->uac->unit[uid->real_unit_addr].base_ua; - dasd_set_uid(device->cdev, &private->uid); + + /* only lock if not already locked */ + if (device != pos) + spin_lock_irqsave_nested(get_ccwdev_lock(device->cdev), flags, + CDEV_NESTED_SECOND); + private->uid.type = lcu->uac->unit[private->uid.real_unit_addr].ua_type; + private->uid.base_unit_addr = + lcu->uac->unit[private->uid.real_unit_addr].base_ua; + uid = private->uid; + + if (device != pos) + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); /* if we have no PAV anyway, we don't need to bother with PAV groups */ if (lcu->pav == NO_PAV) { @@ -386,25 +400,25 @@ static int _add_device_to_lcu(struct alias_lcu *lcu, return 0; } - group = _find_group(lcu, uid); + group = _find_group(lcu, &uid); if (!group) { group = kzalloc(sizeof(*group), GFP_ATOMIC); if (!group) return -ENOMEM; - memcpy(group->uid.vendor, uid->vendor, sizeof(uid->vendor)); - memcpy(group->uid.serial, uid->serial, sizeof(uid->serial)); - group->uid.ssid = uid->ssid; - if (uid->type == UA_BASE_DEVICE) - group->uid.base_unit_addr = uid->real_unit_addr; + memcpy(group->uid.vendor, uid.vendor, sizeof(uid.vendor)); + memcpy(group->uid.serial, uid.serial, sizeof(uid.serial)); + group->uid.ssid = uid.ssid; + if (uid.type == UA_BASE_DEVICE) + group->uid.base_unit_addr = uid.real_unit_addr; else - group->uid.base_unit_addr = uid->base_unit_addr; - memcpy(group->uid.vduit, uid->vduit, sizeof(uid->vduit)); + group->uid.base_unit_addr = uid.base_unit_addr; + memcpy(group->uid.vduit, uid.vduit, sizeof(uid.vduit)); INIT_LIST_HEAD(&group->group); INIT_LIST_HEAD(&group->baselist); INIT_LIST_HEAD(&group->aliaslist); list_add(&group->group, &lcu->grouplist); } - if (uid->type == UA_BASE_DEVICE) + if (uid.type == UA_BASE_DEVICE) list_move(&device->alias_list, &group->baselist); else list_move(&device->alias_list, &group->aliaslist); @@ -525,7 +539,10 @@ static int _lcu_update(struct dasd_device *refdev, struct alias_lcu *lcu) if (rc) return rc; - spin_lock_irqsave(&lcu->lock, flags); + /* need to take cdev lock before lcu lock */ + spin_lock_irqsave_nested(get_ccwdev_lock(refdev->cdev), flags, + CDEV_NESTED_FIRST); + spin_lock(&lcu->lock); lcu->pav = NO_PAV; for (i = 0; i < MAX_DEVICES_PER_LCU; ++i) { switch (lcu->uac->unit[i].ua_type) { @@ -542,9 +559,10 @@ static int _lcu_update(struct dasd_device *refdev, struct alias_lcu *lcu) list_for_each_entry_safe(device, tempdev, &lcu->active_devices, alias_list) { - _add_device_to_lcu(lcu, device); + _add_device_to_lcu(lcu, device, refdev); } - spin_unlock_irqrestore(&lcu->lock, flags); + spin_unlock(&lcu->lock); + spin_unlock_irqrestore(get_ccwdev_lock(refdev->cdev), flags); return 0; } @@ -628,9 +646,12 @@ int dasd_alias_add_device(struct dasd_device *device) private = (struct dasd_eckd_private *) device->private; lcu = private->lcu; rc = 0; - spin_lock_irqsave(&lcu->lock, flags); + + /* need to take cdev lock before lcu lock */ + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + spin_lock(&lcu->lock); if (!(lcu->flags & UPDATE_PENDING)) { - rc = _add_device_to_lcu(lcu, device); + rc = _add_device_to_lcu(lcu, device, device); if (rc) lcu->flags |= UPDATE_PENDING; } @@ -638,10 +659,19 @@ int dasd_alias_add_device(struct dasd_device *device) list_move(&device->alias_list, &lcu->active_devices); _schedule_lcu_update(lcu, device); } - spin_unlock_irqrestore(&lcu->lock, flags); + spin_unlock(&lcu->lock); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); return rc; } +int dasd_alias_update_add_device(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + private = (struct dasd_eckd_private *) device->private; + private->lcu->flags |= UPDATE_PENDING; + return dasd_alias_add_device(device); +} + int dasd_alias_remove_device(struct dasd_device *device) { struct dasd_eckd_private *private; @@ -740,19 +770,30 @@ static void _restart_all_base_devices_on_lcu(struct alias_lcu *lcu) struct alias_pav_group *pavgroup; struct dasd_device *device; struct dasd_eckd_private *private; + unsigned long flags; /* active and inactive list can contain alias as well as base devices */ list_for_each_entry(device, &lcu->active_devices, alias_list) { private = (struct dasd_eckd_private *) device->private; - if (private->uid.type != UA_BASE_DEVICE) + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + if (private->uid.type != UA_BASE_DEVICE) { + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + flags); continue; + } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); dasd_schedule_block_bh(device->block); dasd_schedule_device_bh(device); } list_for_each_entry(device, &lcu->inactive_devices, alias_list) { private = (struct dasd_eckd_private *) device->private; - if (private->uid.type != UA_BASE_DEVICE) + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + if (private->uid.type != UA_BASE_DEVICE) { + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), + flags); continue; + } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); dasd_schedule_block_bh(device->block); dasd_schedule_device_bh(device); } diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index eff9c812c5c2..34d51dd4c539 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -49,7 +49,6 @@ struct dasd_devmap { unsigned int devindex; unsigned short features; struct dasd_device *device; - struct dasd_uid uid; }; /* @@ -936,42 +935,46 @@ dasd_device_status_show(struct device *dev, struct device_attribute *attr, static DEVICE_ATTR(status, 0444, dasd_device_status_show, NULL); -static ssize_t -dasd_alias_show(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t dasd_alias_show(struct device *dev, + struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; - int alias; + struct dasd_device *device; + struct dasd_uid uid; - devmap = dasd_find_busid(dev_name(dev)); - spin_lock(&dasd_devmap_lock); - if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { - spin_unlock(&dasd_devmap_lock); + device = dasd_device_from_cdev(to_ccwdev(dev)); + if (IS_ERR(device)) return sprintf(buf, "0\n"); + + if (device->discipline && device->discipline->get_uid && + !device->discipline->get_uid(device, &uid)) { + if (uid.type == UA_BASE_PAV_ALIAS || + uid.type == UA_HYPER_PAV_ALIAS) + return sprintf(buf, "1\n"); } - if (devmap->uid.type == UA_BASE_PAV_ALIAS || - devmap->uid.type == UA_HYPER_PAV_ALIAS) - alias = 1; - else - alias = 0; - spin_unlock(&dasd_devmap_lock); - return sprintf(buf, alias ? "1\n" : "0\n"); + dasd_put_device(device); + + return sprintf(buf, "0\n"); } static DEVICE_ATTR(alias, 0444, dasd_alias_show, NULL); -static ssize_t -dasd_vendor_show(struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t dasd_vendor_show(struct device *dev, + struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; + struct dasd_device *device; + struct dasd_uid uid; char *vendor; - devmap = dasd_find_busid(dev_name(dev)); - spin_lock(&dasd_devmap_lock); - if (!IS_ERR(devmap) && strlen(devmap->uid.vendor) > 0) - vendor = devmap->uid.vendor; - else - vendor = ""; - spin_unlock(&dasd_devmap_lock); + device = dasd_device_from_cdev(to_ccwdev(dev)); + vendor = ""; + if (IS_ERR(device)) + return snprintf(buf, PAGE_SIZE, "%s\n", vendor); + + if (device->discipline && device->discipline->get_uid && + !device->discipline->get_uid(device, &uid)) + vendor = uid.vendor; + + dasd_put_device(device); return snprintf(buf, PAGE_SIZE, "%s\n", vendor); } @@ -985,48 +988,51 @@ static DEVICE_ATTR(vendor, 0444, dasd_vendor_show, NULL); static ssize_t dasd_uid_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct dasd_devmap *devmap; + struct dasd_device *device; + struct dasd_uid uid; char uid_string[UID_STRLEN]; char ua_string[3]; - struct dasd_uid *uid; - devmap = dasd_find_busid(dev_name(dev)); - spin_lock(&dasd_devmap_lock); - if (IS_ERR(devmap) || strlen(devmap->uid.vendor) == 0) { - spin_unlock(&dasd_devmap_lock); - return sprintf(buf, "\n"); - } - uid = &devmap->uid; - switch (uid->type) { - case UA_BASE_DEVICE: - sprintf(ua_string, "%02x", uid->real_unit_addr); - break; - case UA_BASE_PAV_ALIAS: - sprintf(ua_string, "%02x", uid->base_unit_addr); - break; - case UA_HYPER_PAV_ALIAS: - sprintf(ua_string, "xx"); - break; - default: - /* should not happen, treat like base device */ - sprintf(ua_string, "%02x", uid->real_unit_addr); - break; + device = dasd_device_from_cdev(to_ccwdev(dev)); + uid_string[0] = 0; + if (IS_ERR(device)) + return snprintf(buf, PAGE_SIZE, "%s\n", uid_string); + + if (device->discipline && device->discipline->get_uid && + !device->discipline->get_uid(device, &uid)) { + switch (uid.type) { + case UA_BASE_DEVICE: + snprintf(ua_string, sizeof(ua_string), "%02x", + uid.real_unit_addr); + break; + case UA_BASE_PAV_ALIAS: + snprintf(ua_string, sizeof(ua_string), "%02x", + uid.base_unit_addr); + break; + case UA_HYPER_PAV_ALIAS: + snprintf(ua_string, sizeof(ua_string), "xx"); + break; + default: + /* should not happen, treat like base device */ + snprintf(ua_string, sizeof(ua_string), "%02x", + uid.real_unit_addr); + break; + } + + if (strlen(uid.vduit) > 0) + snprintf(uid_string, sizeof(uid_string), + "%s.%s.%04x.%s.%s", + uid.vendor, uid.serial, uid.ssid, ua_string, + uid.vduit); + else + snprintf(uid_string, sizeof(uid_string), + "%s.%s.%04x.%s", + uid.vendor, uid.serial, uid.ssid, ua_string); } - if (strlen(uid->vduit) > 0) - snprintf(uid_string, sizeof(uid_string), - "%s.%s.%04x.%s.%s", - uid->vendor, uid->serial, - uid->ssid, ua_string, - uid->vduit); - else - snprintf(uid_string, sizeof(uid_string), - "%s.%s.%04x.%s", - uid->vendor, uid->serial, - uid->ssid, ua_string); - spin_unlock(&dasd_devmap_lock); + dasd_put_device(device); + return snprintf(buf, PAGE_SIZE, "%s\n", uid_string); } - static DEVICE_ATTR(uid, 0444, dasd_uid_show, NULL); /* @@ -1094,50 +1100,6 @@ static struct attribute_group dasd_attr_group = { }; /* - * Return copy of the device unique identifier. - */ -int -dasd_get_uid(struct ccw_device *cdev, struct dasd_uid *uid) -{ - struct dasd_devmap *devmap; - - devmap = dasd_find_busid(dev_name(&cdev->dev)); - if (IS_ERR(devmap)) - return PTR_ERR(devmap); - spin_lock(&dasd_devmap_lock); - *uid = devmap->uid; - spin_unlock(&dasd_devmap_lock); - return 0; -} -EXPORT_SYMBOL_GPL(dasd_get_uid); - -/* - * Register the given device unique identifier into devmap struct. - * In addition check if the related storage server subsystem ID is already - * contained in the dasd_server_ssid_list. If subsystem ID is not contained, - * create new entry. - * Return 0 if server was already in serverlist, - * 1 if the server was added successful - * <0 in case of error. - */ -int -dasd_set_uid(struct ccw_device *cdev, struct dasd_uid *uid) -{ - struct dasd_devmap *devmap; - - devmap = dasd_find_busid(dev_name(&cdev->dev)); - if (IS_ERR(devmap)) - return PTR_ERR(devmap); - - spin_lock(&dasd_devmap_lock); - devmap->uid = *uid; - spin_unlock(&dasd_devmap_lock); - - return 0; -} -EXPORT_SYMBOL_GPL(dasd_set_uid); - -/* * Return value of the specified feature. */ int diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 0cb233116855..5b1cd8d6e971 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -692,18 +692,20 @@ dasd_eckd_cdl_reclen(int recid) /* * Generate device unique id that specifies the physical device. */ -static int dasd_eckd_generate_uid(struct dasd_device *device, - struct dasd_uid *uid) +static int dasd_eckd_generate_uid(struct dasd_device *device) { struct dasd_eckd_private *private; + struct dasd_uid *uid; int count; + unsigned long flags; private = (struct dasd_eckd_private *) device->private; if (!private) return -ENODEV; if (!private->ned || !private->gneq) return -ENODEV; - + uid = &private->uid; + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); memset(uid, 0, sizeof(struct dasd_uid)); memcpy(uid->vendor, private->ned->HDA_manufacturer, sizeof(uid->vendor) - 1); @@ -726,9 +728,25 @@ static int dasd_eckd_generate_uid(struct dasd_device *device, private->vdsneq->uit[count]); } } + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); return 0; } +static int dasd_eckd_get_uid(struct dasd_device *device, struct dasd_uid *uid) +{ + struct dasd_eckd_private *private; + unsigned long flags; + + if (device->private) { + private = (struct dasd_eckd_private *)device->private; + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + *uid = private->uid; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + return 0; + } + return -EINVAL; +} + static struct dasd_ccw_req *dasd_eckd_build_rcd_lpm(struct dasd_device *device, void *rcd_buffer, struct ciw *ciw, __u8 lpm) @@ -1088,6 +1106,7 @@ dasd_eckd_check_characteristics(struct dasd_device *device) { struct dasd_eckd_private *private; struct dasd_block *block; + struct dasd_uid temp_uid; int is_known, rc; int readonly; @@ -1124,13 +1143,13 @@ dasd_eckd_check_characteristics(struct dasd_device *device) if (rc) goto out_err1; - /* Generate device unique id and register in devmap */ - rc = dasd_eckd_generate_uid(device, &private->uid); + /* Generate device unique id */ + rc = dasd_eckd_generate_uid(device); if (rc) goto out_err1; - dasd_set_uid(device->cdev, &private->uid); - if (private->uid.type == UA_BASE_DEVICE) { + dasd_eckd_get_uid(device, &temp_uid); + if (temp_uid.type == UA_BASE_DEVICE) { block = dasd_alloc_block(); if (IS_ERR(block)) { DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s", @@ -1451,6 +1470,7 @@ static int dasd_eckd_ready_to_online(struct dasd_device *device) static int dasd_eckd_online_to_ready(struct dasd_device *device) { + cancel_work_sync(&device->reload_device); return dasd_alias_remove_device(device); }; @@ -1709,10 +1729,27 @@ static void dasd_eckd_handle_unsolicited_interrupt(struct dasd_device *device, { char mask; char *sense = NULL; + struct dasd_eckd_private *private; + private = (struct dasd_eckd_private *) device->private; /* first of all check for state change pending interrupt */ mask = DEV_STAT_ATTENTION | DEV_STAT_DEV_END | DEV_STAT_UNIT_EXCEP; if ((scsw_dstat(&irb->scsw) & mask) == mask) { + /* for alias only and not in offline processing*/ + if (!device->block && private->lcu && + !test_bit(DASD_FLAG_OFFLINE, &device->flags)) { + /* + * the state change could be caused by an alias + * reassignment remove device from alias handling + * to prevent new requests from being scheduled on + * the wrong alias device + */ + dasd_alias_remove_device(device); + + /* schedule worker to reload device */ + dasd_reload_device(device); + } + dasd_generic_handle_state_change(device); return; } @@ -3259,7 +3296,7 @@ static void dasd_eckd_dump_sense(struct dasd_device *device, dasd_eckd_dump_sense_ccw(device, req, irb); } -int dasd_eckd_pm_freeze(struct dasd_device *device) +static int dasd_eckd_pm_freeze(struct dasd_device *device) { /* * the device should be disconnected from our LCU structure @@ -3272,7 +3309,7 @@ int dasd_eckd_pm_freeze(struct dasd_device *device) return 0; } -int dasd_eckd_restore_device(struct dasd_device *device) +static int dasd_eckd_restore_device(struct dasd_device *device) { struct dasd_eckd_private *private; struct dasd_eckd_characteristics temp_rdc_data; @@ -3287,15 +3324,16 @@ int dasd_eckd_restore_device(struct dasd_device *device) if (rc) goto out_err; - /* Generate device unique id and register in devmap */ - rc = dasd_eckd_generate_uid(device, &private->uid); - dasd_get_uid(device->cdev, &temp_uid); + dasd_eckd_get_uid(device, &temp_uid); + /* Generate device unique id */ + rc = dasd_eckd_generate_uid(device); + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); if (memcmp(&private->uid, &temp_uid, sizeof(struct dasd_uid)) != 0) dev_err(&device->cdev->dev, "The UID of the DASD has " "changed\n"); + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); if (rc) goto out_err; - dasd_set_uid(device->cdev, &private->uid); /* register lcu with alias handling, enable PAV if this is a new lcu */ is_known = dasd_alias_make_device_known_to_lcu(device); @@ -3336,6 +3374,56 @@ out_err: return -1; } +static int dasd_eckd_reload_device(struct dasd_device *device) +{ + struct dasd_eckd_private *private; + int rc, old_base; + char print_uid[60]; + struct dasd_uid uid; + unsigned long flags; + + private = (struct dasd_eckd_private *) device->private; + + spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags); + old_base = private->uid.base_unit_addr; + spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags); + + /* Read Configuration Data */ + rc = dasd_eckd_read_conf(device); + if (rc) + goto out_err; + + rc = dasd_eckd_generate_uid(device); + if (rc) + goto out_err; + /* + * update unit address configuration and + * add device to alias management + */ + dasd_alias_update_add_device(device); + + dasd_eckd_get_uid(device, &uid); + + if (old_base != uid.base_unit_addr) { + if (strlen(uid.vduit) > 0) + snprintf(print_uid, sizeof(print_uid), + "%s.%s.%04x.%02x.%s", uid.vendor, uid.serial, + uid.ssid, uid.base_unit_addr, uid.vduit); + else + snprintf(print_uid, sizeof(print_uid), + "%s.%s.%04x.%02x", uid.vendor, uid.serial, + uid.ssid, uid.base_unit_addr); + + dev_info(&device->cdev->dev, + "An Alias device was reassigned to a new base device " + "with UID: %s\n", print_uid); + } + return 0; + +out_err: + return -1; +} + static struct ccw_driver dasd_eckd_driver = { .name = "dasd-eckd", .owner = THIS_MODULE, @@ -3389,6 +3477,8 @@ static struct dasd_discipline dasd_eckd_discipline = { .ioctl = dasd_eckd_ioctl, .freeze = dasd_eckd_pm_freeze, .restore = dasd_eckd_restore_device, + .reload = dasd_eckd_reload_device, + .get_uid = dasd_eckd_get_uid, }; static int __init diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 864d53c04201..dd6385a5af14 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -426,7 +426,6 @@ struct alias_pav_group { struct dasd_device *next; }; - struct dasd_eckd_private { struct dasd_eckd_characteristics rdc_data; u8 *conf_data; @@ -463,4 +462,5 @@ void dasd_alias_handle_summary_unit_check(struct dasd_device *, struct irb *); void dasd_eckd_reset_ccw_to_base_io(struct dasd_ccw_req *); void dasd_alias_lcu_setup_complete(struct dasd_device *); void dasd_alias_wait_for_lcu_setup(struct dasd_device *); +int dasd_alias_update_add_device(struct dasd_device *); #endif /* DASD_ECKD_H */ diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index a91d4a97d4f2..32fac186ba3f 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -81,6 +81,10 @@ struct dasd_block; #define DASD_SIM_MSG_TO_OP 0x03 #define DASD_SIM_LOG 0x0C +/* lock class for nested cdev lock */ +#define CDEV_NESTED_FIRST 1 +#define CDEV_NESTED_SECOND 2 + /* * SECTION: MACROs for klogd and s390 debug feature (dbf) */ @@ -229,6 +233,24 @@ struct dasd_ccw_req { typedef struct dasd_ccw_req *(*dasd_erp_fn_t) (struct dasd_ccw_req *); /* + * Unique identifier for dasd device. + */ +#define UA_NOT_CONFIGURED 0x00 +#define UA_BASE_DEVICE 0x01 +#define UA_BASE_PAV_ALIAS 0x02 +#define UA_HYPER_PAV_ALIAS 0x03 + +struct dasd_uid { + __u8 type; + char vendor[4]; + char serial[15]; + __u16 ssid; + __u8 real_unit_addr; + __u8 base_unit_addr; + char vduit[33]; +}; + +/* * the struct dasd_discipline is * sth like a table of virtual functions, if you think of dasd_eckd * inheriting dasd... @@ -312,28 +334,15 @@ struct dasd_discipline { /* suspend/resume functions */ int (*freeze) (struct dasd_device *); int (*restore) (struct dasd_device *); -}; -extern struct dasd_discipline *dasd_diag_discipline_pointer; - -/* - * Unique identifier for dasd device. - */ -#define UA_NOT_CONFIGURED 0x00 -#define UA_BASE_DEVICE 0x01 -#define UA_BASE_PAV_ALIAS 0x02 -#define UA_HYPER_PAV_ALIAS 0x03 + /* reload device after state change */ + int (*reload) (struct dasd_device *); -struct dasd_uid { - __u8 type; - char vendor[4]; - char serial[15]; - __u16 ssid; - __u8 real_unit_addr; - __u8 base_unit_addr; - char vduit[33]; + int (*get_uid) (struct dasd_device *, struct dasd_uid *); }; +extern struct dasd_discipline *dasd_diag_discipline_pointer; + /* * Notification numbers for extended error reporting notifications: * The DASD_EER_DISABLE notification is sent before a dasd_device (and it's @@ -386,6 +395,7 @@ struct dasd_device { struct tasklet_struct tasklet; struct work_struct kick_work; struct work_struct restore_device; + struct work_struct reload_device; struct timer_list timer; debug_info_t *debug_area; @@ -582,6 +592,7 @@ void dasd_enable_device(struct dasd_device *); void dasd_set_target_state(struct dasd_device *, int); void dasd_kick_device(struct dasd_device *); void dasd_restore_device(struct dasd_device *); +void dasd_reload_device(struct dasd_device *); void dasd_add_request_head(struct dasd_ccw_req *); void dasd_add_request_tail(struct dasd_ccw_req *); @@ -629,8 +640,6 @@ void dasd_devmap_exit(void); struct dasd_device *dasd_create_device(struct ccw_device *); void dasd_delete_device(struct dasd_device *); -int dasd_get_uid(struct ccw_device *, struct dasd_uid *); -int dasd_set_uid(struct ccw_device *, struct dasd_uid *); int dasd_get_feature(struct ccw_device *, int); int dasd_set_feature(struct ccw_device *, int, int); diff --git a/drivers/s390/char/Kconfig b/drivers/s390/char/Kconfig index 4e34d3686c23..40834f18754c 100644 --- a/drivers/s390/char/Kconfig +++ b/drivers/s390/char/Kconfig @@ -148,13 +148,12 @@ config VMLOGRDR This driver depends on the IUCV support driver. config VMCP - tristate "Support for the z/VM CP interface (VM only)" + bool "Support for the z/VM CP interface" depends on S390 help Select this option if you want to be able to interact with the control program on z/VM - config MONREADER tristate "API for reading z/VM monitor service records" depends on IUCV diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c index 0eabcca3c92d..857dfcb7b359 100644 --- a/drivers/s390/char/fs3270.c +++ b/drivers/s390/char/fs3270.c @@ -484,6 +484,7 @@ fs3270_open(struct inode *inode, struct file *filp) raw3270_del_view(&fp->view); goto out; } + nonseekable_open(inode, filp); filp->private_data = fp; out: mutex_unlock(&fs3270_mutex); diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c index cb6bffe7141a..18d9a497863b 100644 --- a/drivers/s390/char/keyboard.c +++ b/drivers/s390/char/keyboard.c @@ -49,7 +49,7 @@ static unsigned char ret_diacr[NR_DEAD] = { struct kbd_data * kbd_alloc(void) { struct kbd_data *kbd; - int i, len; + int i; kbd = kzalloc(sizeof(struct kbd_data), GFP_KERNEL); if (!kbd) @@ -59,12 +59,11 @@ kbd_alloc(void) { goto out_kbd; for (i = 0; i < ARRAY_SIZE(key_maps); i++) { if (key_maps[i]) { - kbd->key_maps[i] = - kmalloc(sizeof(u_short)*NR_KEYS, GFP_KERNEL); + kbd->key_maps[i] = kmemdup(key_maps[i], + sizeof(u_short) * NR_KEYS, + GFP_KERNEL); if (!kbd->key_maps[i]) goto out_maps; - memcpy(kbd->key_maps[i], key_maps[i], - sizeof(u_short)*NR_KEYS); } } kbd->func_table = kzalloc(sizeof(func_table), GFP_KERNEL); @@ -72,23 +71,21 @@ kbd_alloc(void) { goto out_maps; for (i = 0; i < ARRAY_SIZE(func_table); i++) { if (func_table[i]) { - len = strlen(func_table[i]) + 1; - kbd->func_table[i] = kmalloc(len, GFP_KERNEL); + kbd->func_table[i] = kstrdup(func_table[i], + GFP_KERNEL); if (!kbd->func_table[i]) goto out_func; - memcpy(kbd->func_table[i], func_table[i], len); } } kbd->fn_handler = kzalloc(sizeof(fn_handler_fn *) * NR_FN_HANDLER, GFP_KERNEL); if (!kbd->fn_handler) goto out_func; - kbd->accent_table = - kmalloc(sizeof(struct kbdiacruc)*MAX_DIACR, GFP_KERNEL); + kbd->accent_table = kmemdup(accent_table, + sizeof(struct kbdiacruc) * MAX_DIACR, + GFP_KERNEL); if (!kbd->accent_table) goto out_fn_handler; - memcpy(kbd->accent_table, accent_table, - sizeof(struct kbdiacruc)*MAX_DIACR); kbd->accent_table_size = accent_table_size; return kbd; diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c index 62c2647f37f4..4a51e3f09689 100644 --- a/drivers/s390/char/sclp_cpi_sys.c +++ b/drivers/s390/char/sclp_cpi_sys.c @@ -102,7 +102,7 @@ static struct sclp_req *cpi_prepare_req(void) /* set system name */ set_data(evb->system_name, system_name); - /* set sytem level */ + /* set system level */ evb->system_level = system_level; /* set sysplex name */ diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c index 5bb59d36a6d4..04e532eec032 100644 --- a/drivers/s390/char/vmcp.c +++ b/drivers/s390/char/vmcp.c @@ -1,24 +1,20 @@ /* - * Copyright IBM Corp. 2004,2007 + * Copyright IBM Corp. 2004,2010 * Interface implementation for communication with the z/VM control program - * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> * + * Author(s): Christian Borntraeger <borntraeger@de.ibm.com> * * z/VMs CP offers the possibility to issue commands via the diagnose code 8 * this driver implements a character device that issues these commands and * returns the answer of CP. - + * * The idea of this driver is based on cpint from Neale Ferguson and #CP in CMS */ -#define KMSG_COMPONENT "vmcp" -#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt - #include <linux/fs.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/miscdevice.h> -#include <linux/module.h> #include <linux/slab.h> #include <asm/compat.h> #include <asm/cpcmd.h> @@ -26,10 +22,6 @@ #include <asm/uaccess.h> #include "vmcp.h" -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Christian Borntraeger <borntraeger@de.ibm.com>"); -MODULE_DESCRIPTION("z/VM CP interface"); - static debug_info_t *vmcp_debug; static int vmcp_open(struct inode *inode, struct file *file) @@ -197,11 +189,8 @@ static int __init vmcp_init(void) { int ret; - if (!MACHINE_IS_VM) { - pr_warning("The z/VM CP interface device driver cannot be " - "loaded without z/VM\n"); - return -ENODEV; - } + if (!MACHINE_IS_VM) + return 0; vmcp_debug = debug_register("vmcp", 1, 1, 240); if (!vmcp_debug) @@ -214,19 +203,8 @@ static int __init vmcp_init(void) } ret = misc_register(&vmcp_dev); - if (ret) { + if (ret) debug_unregister(vmcp_debug); - return ret; - } - - return 0; -} - -static void __exit vmcp_exit(void) -{ - misc_deregister(&vmcp_dev); - debug_unregister(vmcp_debug); + return ret; } - -module_init(vmcp_init); -module_exit(vmcp_exit); +device_initcall(vmcp_init); diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c index 7217966f7d31..f5ea3384a4b9 100644 --- a/drivers/s390/char/zcore.c +++ b/drivers/s390/char/zcore.c @@ -445,7 +445,7 @@ static int zcore_memmap_open(struct inode *inode, struct file *filp) } kfree(chunk_array); filp->private_data = buf; - return 0; + return nonseekable_open(inode, filp); } static int zcore_memmap_release(struct inode *inode, struct file *filp) @@ -473,7 +473,7 @@ static ssize_t zcore_reipl_write(struct file *filp, const char __user *buf, static int zcore_reipl_open(struct inode *inode, struct file *filp) { - return 0; + return nonseekable_open(inode, filp); } static int zcore_reipl_release(struct inode *inode, struct file *filp) diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c index 3b6f4adc5094..a83877c664a6 100644 --- a/drivers/s390/cio/chsc_sch.c +++ b/drivers/s390/cio/chsc_sch.c @@ -803,6 +803,7 @@ static long chsc_ioctl(struct file *filp, unsigned int cmd, static const struct file_operations chsc_fops = { .owner = THIS_MODULE, + .open = nonseekable_open, .unlocked_ioctl = chsc_ioctl, .compat_ioctl = chsc_ioctl, }; diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c index 5feea1a371e1..f4e6cf3aceb8 100644 --- a/drivers/s390/cio/cio.c +++ b/drivers/s390/cio/cio.c @@ -616,7 +616,8 @@ void __irq_entry do_IRQ(struct pt_regs *regs) struct pt_regs *old_regs; old_regs = set_irq_regs(regs); - s390_idle_check(); + s390_idle_check(regs, S390_lowcore.int_clock, + S390_lowcore.async_enter_timer); irq_enter(); __get_cpu_var(s390_idle).nohz_delay = 1; if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index 511649115bd7..ac94ac751459 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -648,6 +648,8 @@ static void css_process_crw(struct crw *crw0, struct crw *crw1, int overflow) static void __init css_generate_pgid(struct channel_subsystem *css, u32 tod_high) { + struct cpuid cpu_id; + if (css_general_characteristics.mcss) { css->global_pgid.pgid_high.ext_cssid.version = 0x80; css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid; @@ -658,8 +660,9 @@ css_generate_pgid(struct channel_subsystem *css, u32 tod_high) css->global_pgid.pgid_high.cpu_addr = 0; #endif } - css->global_pgid.cpu_id = S390_lowcore.cpu_id.ident; - css->global_pgid.cpu_model = S390_lowcore.cpu_id.machine; + get_cpu_id(&cpu_id); + css->global_pgid.cpu_id = cpu_id.ident; + css->global_pgid.cpu_model = cpu_id.machine; css->global_pgid.tod_high = tod_high; } @@ -1062,6 +1065,7 @@ static ssize_t cio_settle_write(struct file *file, const char __user *buf, } static const struct file_operations cio_settle_proc_fops = { + .open = nonseekable_open, .write = cio_settle_write, }; diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h index 48aa0647432b..f0037eefd44e 100644 --- a/drivers/s390/cio/qdio.h +++ b/drivers/s390/cio/qdio.h @@ -13,8 +13,8 @@ #include <asm/debug.h> #include "chsc.h" -#define QDIO_BUSY_BIT_PATIENCE 100 /* 100 microseconds */ -#define QDIO_INPUT_THRESHOLD 500 /* 500 microseconds */ +#define QDIO_BUSY_BIT_PATIENCE (100 << 12) /* 100 microseconds */ +#define QDIO_INPUT_THRESHOLD (500 << 12) /* 500 microseconds */ /* * if an asynchronous HiperSockets queue runs full, the 10 seconds timer wait @@ -296,10 +296,8 @@ struct qdio_q { struct qdio_irq *irq_ptr; struct sl *sl; /* - * Warning: Leave this member at the end so it won't be cleared in - * qdio_fill_qs. A page is allocated under this pointer and used for - * slib and sl. slib is 2048 bytes big and sl points to offset - * PAGE_SIZE / 2. + * A page is allocated under this pointer and used for slib and sl. + * slib is 2048 bytes big and sl points to offset PAGE_SIZE / 2. */ struct slib *slib; } __attribute__ ((aligned(256))); @@ -372,11 +370,6 @@ static inline int multicast_outbound(struct qdio_q *q) (q->nr == q->irq_ptr->nr_output_qs - 1); } -static inline unsigned long long get_usecs(void) -{ - return monotonic_clock() >> 12; -} - #define pci_out_supported(q) \ (q->irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED) #define is_qebsm(q) (q->irq_ptr->sch_token != 0) diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index 88be7b9ea6e1..00520f9a7a8e 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -336,10 +336,10 @@ again: WARN_ON(queue_type(q) != QDIO_IQDIO_QFMT || cc != 2); if (!start_time) { - start_time = get_usecs(); + start_time = get_clock(); goto again; } - if ((get_usecs() - start_time) < QDIO_BUSY_BIT_PATIENCE) + if ((get_clock() - start_time) < QDIO_BUSY_BIT_PATIENCE) goto again; } return cc; @@ -536,7 +536,7 @@ static int qdio_inbound_q_moved(struct qdio_q *q) if ((bufnr != q->last_move) || q->qdio_error) { q->last_move = bufnr; if (!is_thinint_irq(q->irq_ptr) && MACHINE_IS_LPAR) - q->u.in.timestamp = get_usecs(); + q->u.in.timestamp = get_clock(); return 1; } else return 0; @@ -567,7 +567,7 @@ static inline int qdio_inbound_q_done(struct qdio_q *q) * At this point we know, that inbound first_to_check * has (probably) not moved (see qdio_inbound_processing). */ - if (get_usecs() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { + if (get_clock() > q->u.in.timestamp + QDIO_INPUT_THRESHOLD) { DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in done:%02x", q->first_to_check); return 1; @@ -606,7 +606,7 @@ static void qdio_kick_handler(struct qdio_q *q) static void __qdio_inbound_processing(struct qdio_q *q) { qperf_inc(q, tasklet_inbound); -again: + if (!qdio_inbound_q_moved(q)) return; @@ -615,7 +615,10 @@ again: if (!qdio_inbound_q_done(q)) { /* means poll time is not yet over */ qperf_inc(q, tasklet_inbound_resched); - goto again; + if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) { + tasklet_schedule(&q->tasklet); + return; + } } qdio_stop_polling(q); @@ -625,7 +628,8 @@ again: */ if (!qdio_inbound_q_done(q)) { qperf_inc(q, tasklet_inbound_resched2); - goto again; + if (likely(q->irq_ptr->state != QDIO_IRQ_STATE_STOPPED)) + tasklet_schedule(&q->tasklet); } } @@ -955,6 +959,9 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, return; } + if (irq_ptr->perf_stat_enabled) + irq_ptr->perf_stat.qdio_int++; + if (IS_ERR(irb)) { switch (PTR_ERR(irb)) { case -EIO: @@ -1016,30 +1023,6 @@ int qdio_get_ssqd_desc(struct ccw_device *cdev, } EXPORT_SYMBOL_GPL(qdio_get_ssqd_desc); -/** - * qdio_cleanup - shutdown queues and free data structures - * @cdev: associated ccw device - * @how: use halt or clear to shutdown - * - * This function calls qdio_shutdown() for @cdev with method @how. - * and qdio_free(). The qdio_free() return value is ignored since - * !irq_ptr is already checked. - */ -int qdio_cleanup(struct ccw_device *cdev, int how) -{ - struct qdio_irq *irq_ptr = cdev->private->qdio_data; - int rc; - - if (!irq_ptr) - return -ENODEV; - - rc = qdio_shutdown(cdev, how); - - qdio_free(cdev); - return rc; -} -EXPORT_SYMBOL_GPL(qdio_cleanup); - static void qdio_shutdown_queues(struct ccw_device *cdev) { struct qdio_irq *irq_ptr = cdev->private->qdio_data; @@ -1157,28 +1140,6 @@ int qdio_free(struct ccw_device *cdev) EXPORT_SYMBOL_GPL(qdio_free); /** - * qdio_initialize - allocate and establish queues for a qdio subchannel - * @init_data: initialization data - * - * This function first allocates queues via qdio_allocate() and on success - * establishes them via qdio_establish(). - */ -int qdio_initialize(struct qdio_initialize *init_data) -{ - int rc; - - rc = qdio_allocate(init_data); - if (rc) - return rc; - - rc = qdio_establish(init_data); - if (rc) - qdio_free(init_data->cdev); - return rc; -} -EXPORT_SYMBOL_GPL(qdio_initialize); - -/** * qdio_allocate - allocate qdio queues and associated data * @init_data: initialization data */ diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index 7f4a75465140..6326b67c45d2 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -106,10 +106,12 @@ int qdio_allocate_qs(struct qdio_irq *irq_ptr, int nr_input_qs, int nr_output_qs static void setup_queues_misc(struct qdio_q *q, struct qdio_irq *irq_ptr, qdio_handler_t *handler, int i) { - /* must be cleared by every qdio_establish */ - memset(q, 0, ((char *)&q->slib) - ((char *)q)); - memset(q->slib, 0, PAGE_SIZE); + struct slib *slib = q->slib; + /* queue must be cleared for qdio_establish */ + memset(q, 0, sizeof(*q)); + memset(slib, 0, PAGE_SIZE); + q->slib = slib; q->irq_ptr = irq_ptr; q->mask = 1 << (31 - i); q->nr = i; diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index ce5f8910ff83..8daf1b99f153 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -95,7 +95,7 @@ void tiqdio_add_input_queues(struct qdio_irq *irq_ptr) for_each_input_queue(irq_ptr, q, i) list_add_rcu(&q->entry, &tiq_list); mutex_unlock(&tiq_list_lock); - xchg(irq_ptr->dsci, 1); + xchg(irq_ptr->dsci, 1 << 7); } void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr) @@ -173,7 +173,7 @@ static void tiqdio_thinint_handler(void *ind, void *drv_data) /* prevent racing */ if (*tiqdio_alsi) - xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 1); + xchg(&q_indicators[TIQDIO_SHARED_IND].ind, 1 << 7); } } diff --git a/drivers/s390/crypto/zcrypt_api.c b/drivers/s390/crypto/zcrypt_api.c index 304caf549973..41e0aaefafd5 100644 --- a/drivers/s390/crypto/zcrypt_api.c +++ b/drivers/s390/crypto/zcrypt_api.c @@ -302,7 +302,7 @@ static ssize_t zcrypt_write(struct file *filp, const char __user *buf, static int zcrypt_open(struct inode *inode, struct file *filp) { atomic_inc(&zcrypt_open_count); - return 0; + return nonseekable_open(inode, filp); } /** diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 3ba738b2e271..28f71349fdec 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -1292,13 +1292,14 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) QETH_QDIO_CLEANING)) { case QETH_QDIO_ESTABLISHED: if (card->info.type == QETH_CARD_TYPE_IQD) - rc = qdio_cleanup(CARD_DDEV(card), + rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_HALT); else - rc = qdio_cleanup(CARD_DDEV(card), + rc = qdio_shutdown(CARD_DDEV(card), QDIO_FLAG_CLEANUP_USING_CLEAR); if (rc) QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc); + qdio_free(CARD_DDEV(card)); atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); break; case QETH_QDIO_CLEANING: @@ -3810,10 +3811,18 @@ static int qeth_qdio_establish(struct qeth_card *card) if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { - rc = qdio_initialize(&init_data); - if (rc) + rc = qdio_allocate(&init_data); + if (rc) { + atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + goto out; + } + rc = qdio_establish(&init_data); + if (rc) { atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); + qdio_free(CARD_DDEV(card)); + } } +out: kfree(out_sbal_ptrs); kfree(in_sbal_ptrs); kfree(qib_param_field); diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c index 25d9e0ae9c57..1a2db0a35737 100644 --- a/drivers/s390/scsi/zfcp_cfdc.c +++ b/drivers/s390/scsi/zfcp_cfdc.c @@ -254,6 +254,7 @@ static long zfcp_cfdc_dev_ioctl(struct file *file, unsigned int command, } static const struct file_operations zfcp_cfdc_fops = { + .open = nonseekable_open, .unlocked_ioctl = zfcp_cfdc_dev_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = zfcp_cfdc_dev_ioctl diff --git a/drivers/sbus/char/flash.c b/drivers/sbus/char/flash.c index 19f255b97c86..d3b62eb0fba7 100644 --- a/drivers/sbus/char/flash.c +++ b/drivers/sbus/char/flash.c @@ -105,9 +105,9 @@ static ssize_t flash_read(struct file * file, char __user * buf, size_t count, loff_t *ppos) { - unsigned long p = file->f_pos; + loff_t p = *ppos; int i; - + if (count > flash.read_size - p) count = flash.read_size - p; @@ -118,7 +118,7 @@ flash_read(struct file * file, char __user * buf, buf++; } - file->f_pos += count; + *ppos += count; return count; } diff --git a/drivers/scsi/bfa/include/defs/bfa_defs_cee.h b/drivers/scsi/bfa/include/defs/bfa_defs_cee.h index b0ac9ac15c5d..6eaf519eccdc 100644 --- a/drivers/scsi/bfa/include/defs/bfa_defs_cee.h +++ b/drivers/scsi/bfa/include/defs/bfa_defs_cee.h @@ -50,7 +50,7 @@ struct bfa_cee_lldp_str_s { }; -/* LLDP paramters */ +/* LLDP parameters */ struct bfa_cee_lldp_cfg_s { struct bfa_cee_lldp_str_s chassis_id; struct bfa_cee_lldp_str_s port_id; diff --git a/drivers/scsi/bfa/include/defs/bfa_defs_status.h b/drivers/scsi/bfa/include/defs/bfa_defs_status.h index 4374494bd566..ec78b4cb121a 100644 --- a/drivers/scsi/bfa/include/defs/bfa_defs_status.h +++ b/drivers/scsi/bfa/include/defs/bfa_defs_status.h @@ -223,9 +223,9 @@ enum bfa_status { BFA_STATUS_IM_PVID_NON_ZERO = 140, /* Port VLAN ID (PVID) is Set to * Non-Zero Value */ BFA_STATUS_IM_INETCFG_LOCK_FAILED = 141, /* Acquiring Network - * Subsytem Lock Failed.Please + * Subsystem Lock Failed.Please * try after some time */ - BFA_STATUS_IM_GET_INETCFG_FAILED = 142, /* Acquiring Network Subsytem + BFA_STATUS_IM_GET_INETCFG_FAILED = 142, /* Acquiring Network Subsystem * handle Failed. Please try * after some time */ BFA_STATUS_IM_NOT_BOUND = 143, /* IM driver is not active */ diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c index 528733b4a392..9d70aef99227 100644 --- a/drivers/scsi/pcmcia/aha152x_stub.c +++ b/drivers/scsi/pcmcia/aha152x_stub.c @@ -80,7 +80,6 @@ MODULE_LICENSE("Dual MPL/GPL"); typedef struct scsi_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct Scsi_Host *host; } scsi_info_t; @@ -105,7 +104,6 @@ static int aha152x_probe(struct pcmcia_device *link) link->io.NumPorts1 = 0x20; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -160,8 +158,7 @@ static int aha152x_config_cs(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -172,7 +169,7 @@ static int aha152x_config_cs(struct pcmcia_device *link) memset(&s, 0, sizeof(s)); s.conf = "PCMCIA setup"; s.io_port = link->io.BasePort1; - s.irq = link->irq.AssignedIRQ; + s.irq = link->irq; s.scsiid = host_id; s.reconnect = reconnect; s.parity = parity; @@ -187,8 +184,6 @@ static int aha152x_config_cs(struct pcmcia_device *link) goto failed; } - sprintf(info->node.dev_name, "scsi%d", host->host_no); - link->dev_node = &info->node; info->host = host; return 0; diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c index 914040684079..21b141151dfc 100644 --- a/drivers/scsi/pcmcia/fdomain_stub.c +++ b/drivers/scsi/pcmcia/fdomain_stub.c @@ -63,7 +63,6 @@ MODULE_LICENSE("Dual MPL/GPL"); typedef struct scsi_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct Scsi_Host *host; } scsi_info_t; @@ -88,7 +87,6 @@ static int fdomain_probe(struct pcmcia_device *link) link->io.NumPorts1 = 0x10; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -133,8 +131,7 @@ static int fdomain_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -144,7 +141,7 @@ static int fdomain_config(struct pcmcia_device *link) release_region(link->io.BasePort1, link->io.NumPorts1); /* Set configuration options for the fdomain driver */ - sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ); + sprintf(str, "%d,%d", link->io.BasePort1, link->irq); fdomain_setup(str); host = __fdomain_16x0_detect(&fdomain_driver_template); @@ -157,8 +154,6 @@ static int fdomain_config(struct pcmcia_device *link) goto failed; scsi_scan_host(host); - sprintf(info->node.dev_name, "scsi%d", host->host_no); - link->dev_node = &info->node; info->host = host; return 0; diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index 021246454872..0f0e112c3f8e 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -1563,13 +1563,6 @@ static int nsp_cs_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; /* not used */ - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - - /* Interrupt handler */ - link->irq.Handler = &nspintr; - link->irq.Attributes |= IRQF_SHARED; - /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -1646,8 +1639,7 @@ static int nsp_cs_config_check(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -1720,10 +1712,8 @@ static int nsp_cs_config(struct pcmcia_device *link) if (ret) goto cs_failed; - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - if (pcmcia_request_irq(link, &link->irq)) - goto cs_failed; - } + if (pcmcia_request_irq(link, nspintr)) + goto cs_failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -1741,7 +1731,7 @@ static int nsp_cs_config(struct pcmcia_device *link) /* Set port and IRQ */ data->BaseAddress = link->io.BasePort1; data->NumAddress = link->io.NumPorts1; - data->IrqNumber = link->irq.AssignedIRQ; + data->IrqNumber = link->irq; nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d", data->BaseAddress, data->NumAddress, data->IrqNumber); @@ -1764,8 +1754,6 @@ static int nsp_cs_config(struct pcmcia_device *link) scsi_scan_host(host); - snprintf(info->node.dev_name, sizeof(info->node.dev_name), "scsi%d", host->host_no); - link->dev_node = &info->node; info->host = host; /* Finally, report what we've done */ @@ -1775,7 +1763,7 @@ static int nsp_cs_config(struct pcmcia_device *link) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); } if (link->conf.Attributes & CONF_ENABLE_IRQ) { - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); } if (link->io.NumPorts1) { printk(", io 0x%04x-0x%04x", link->io.BasePort1, @@ -1823,7 +1811,6 @@ static void nsp_cs_release(struct pcmcia_device *link) if (info->host != NULL) { scsi_remove_host(info->host); } - link->dev_node = NULL; if (link->win) { if (data != NULL) { diff --git a/drivers/scsi/pcmcia/nsp_cs.h b/drivers/scsi/pcmcia/nsp_cs.h index 8c61a4fe1db9..d68c9f267c5e 100644 --- a/drivers/scsi/pcmcia/nsp_cs.h +++ b/drivers/scsi/pcmcia/nsp_cs.h @@ -224,7 +224,6 @@ typedef struct scsi_info_t { struct pcmcia_device *p_dev; struct Scsi_Host *host; - dev_node_t node; int stop; } scsi_info_t; diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c index f85f094870b4..f0fc6baed9fc 100644 --- a/drivers/scsi/pcmcia/qlogic_stub.c +++ b/drivers/scsi/pcmcia/qlogic_stub.c @@ -82,7 +82,6 @@ static struct scsi_host_template qlogicfas_driver_template = { typedef struct scsi_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct Scsi_Host *host; unsigned short manf_id; } scsi_info_t; @@ -161,7 +160,6 @@ static int qlogic_probe(struct pcmcia_device *link) link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -209,8 +207,7 @@ static int qlogic_config(struct pcmcia_device * link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -227,18 +224,16 @@ static int qlogic_config(struct pcmcia_device * link) /* The KXL-810AN has a bigger IO port window */ if (link->io.NumPorts1 == 32) host = qlogic_detect(&qlogicfas_driver_template, link, - link->io.BasePort1 + 16, link->irq.AssignedIRQ); + link->io.BasePort1 + 16, link->irq); else host = qlogic_detect(&qlogicfas_driver_template, link, - link->io.BasePort1, link->irq.AssignedIRQ); + link->io.BasePort1, link->irq); if (!host) { printk(KERN_INFO "%s: no SCSI devices found\n", qlogic_name); goto failed; } - sprintf(info->node.dev_name, "scsi%d", host->host_no); - link->dev_node = &info->node; info->host = host; return 0; @@ -258,7 +253,7 @@ static void qlogic_release(struct pcmcia_device *link) scsi_remove_host(info->host); - free_irq(link->irq.AssignedIRQ, info->host); + free_irq(link->irq, info->host); pcmcia_disable_device(link); scsi_host_put(info->host); diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c index e7564d8f0cbf..a51164171179 100644 --- a/drivers/scsi/pcmcia/sym53c500_cs.c +++ b/drivers/scsi/pcmcia/sym53c500_cs.c @@ -191,7 +191,6 @@ struct scsi_info_t { struct pcmcia_device *p_dev; - dev_node_t node; struct Scsi_Host *host; unsigned short manf_id; }; @@ -719,8 +718,7 @@ SYM53C500_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -752,7 +750,7 @@ SYM53C500_config(struct pcmcia_device *link) * 0x320, 0x330, 0x340, 0x350 */ port_base = link->io.BasePort1; - irq_level = link->irq.AssignedIRQ; + irq_level = link->irq; DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n", port_base, irq_level, USE_FAST_PIO);) @@ -793,8 +791,6 @@ SYM53C500_config(struct pcmcia_device *link) */ data->fast_pio = USE_FAST_PIO; - sprintf(info->node.dev_name, "scsi%d", host->host_no); - link->dev_node = &info->node; info->host = host; if (scsi_add_host(host, NULL)) @@ -866,7 +862,6 @@ SYM53C500_probe(struct pcmcia_device *link) link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; diff --git a/drivers/scsi/zorro7xx.c b/drivers/scsi/zorro7xx.c index 105449c15fa9..e17764d71476 100644 --- a/drivers/scsi/zorro7xx.c +++ b/drivers/scsi/zorro7xx.c @@ -69,6 +69,7 @@ static struct zorro_device_id zorro7xx_zorro_tbl[] __devinitdata = { }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, zorro7xx_zorro_tbl); static int __devinit zorro7xx_init_one(struct zorro_dev *z, const struct zorro_device_id *ent) diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index f55c49475a8c..302836a80693 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -518,12 +518,13 @@ config SERIAL_S3C2412 Serial port support for the Samsung S3C2412 and S3C2413 SoC config SERIAL_S3C2440 - tristate "Samsung S3C2440/S3C2442 Serial port support" - depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442) + tristate "Samsung S3C2440/S3C2442/S3C2416 Serial port support" + depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442 || CPU_S3C2416) default y if CPU_S3C2440 default y if CPU_S3C2442 + select SERIAL_SAMSUNG_UARTS_4 if CPU_S3C2416 help - Serial port support for the Samsung S3C2440 and S3C2442 SoC + Serial port support for the Samsung S3C2440, S3C2416 and S3C2442 SoC config SERIAL_S3C24A0 tristate "Samsung S3C24A0 Serial port support" @@ -533,21 +534,13 @@ config SERIAL_S3C24A0 Serial port support for the Samsung S3C24A0 SoC config SERIAL_S3C6400 - tristate "Samsung S3C6400/S3C6410/S5P6440 Seria port support" - depends on SERIAL_SAMSUNG && (CPU_S3C6400 || CPU_S3C6410 || CPU_S5P6440) + tristate "Samsung S3C6400/S3C6410/S5P6440/S5PC100 Serial port support" + depends on SERIAL_SAMSUNG && (CPU_S3C6400 || CPU_S3C6410 || CPU_S5P6440 || CPU_S5PC100) select SERIAL_SAMSUNG_UARTS_4 default y help - Serial port support for the Samsung S3C6400, S3C6410 and S5P6440 - SoCs - -config SERIAL_S5PC100 - tristate "Samsung S5PC100 Serial port support" - depends on SERIAL_SAMSUNG && CPU_S5PC100 - select SERIAL_SAMSUNG_UARTS_4 - default y - help - Serial port support for the Samsung S5PC100 SoCs + Serial port support for the Samsung S3C6400, S3C6410, S5P6440 + and S5PC100 SoCs config SERIAL_S5PV210 tristate "Samsung S5PV210 Serial port support" diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index 6aa4723b74ee..328f107346c4 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -44,7 +44,6 @@ obj-$(CONFIG_SERIAL_S3C2412) += s3c2412.o obj-$(CONFIG_SERIAL_S3C2440) += s3c2440.o obj-$(CONFIG_SERIAL_S3C24A0) += s3c24a0.o obj-$(CONFIG_SERIAL_S3C6400) += s3c6400.o -obj-$(CONFIG_SERIAL_S5PC100) += s3c6400.o obj-$(CONFIG_SERIAL_S5PV210) += s5pv210.o obj-$(CONFIG_SERIAL_MAX3100) += max3100.o obj-$(CONFIG_SERIAL_IP22_ZILOG) += ip22zilog.o diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index 2c9bf9b68327..eed3c2d8dd1c 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -38,6 +38,7 @@ #include <linux/dma-mapping.h> #include <linux/atmel_pdc.h> #include <linux/atmel_serial.h> +#include <linux/uaccess.h> #include <asm/io.h> @@ -59,6 +60,9 @@ #include <linux/serial_core.h> +static void atmel_start_rx(struct uart_port *port); +static void atmel_stop_rx(struct uart_port *port); + #ifdef CONFIG_SERIAL_ATMEL_TTYAT /* Use device name ttyAT, major 204 and minor 154-169. This is necessary if we @@ -93,6 +97,7 @@ #define UART_GET_BRGR(port) __raw_readl((port)->membase + ATMEL_US_BRGR) #define UART_PUT_BRGR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_BRGR) #define UART_PUT_RTOR(port,v) __raw_writel(v, (port)->membase + ATMEL_US_RTOR) +#define UART_PUT_TTGR(port, v) __raw_writel(v, (port)->membase + ATMEL_US_TTGR) /* PDC registers */ #define UART_PUT_PTCR(port,v) __raw_writel(v, (port)->membase + ATMEL_PDC_PTCR) @@ -147,6 +152,9 @@ struct atmel_uart_port { unsigned int irq_status_prev; struct circ_buf rx_ring; + + struct serial_rs485 rs485; /* rs485 settings */ + unsigned int tx_done_mask; }; static struct atmel_uart_port atmel_ports[ATMEL_MAX_UART]; @@ -187,6 +195,46 @@ static bool atmel_use_dma_tx(struct uart_port *port) } #endif +/* Enable or disable the rs485 support */ +void atmel_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf) +{ + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + unsigned int mode; + + spin_lock(&port->lock); + + /* Disable interrupts */ + UART_PUT_IDR(port, atmel_port->tx_done_mask); + + mode = UART_GET_MR(port); + + /* Resetting serial mode to RS232 (0x0) */ + mode &= ~ATMEL_US_USMODE; + + atmel_port->rs485 = *rs485conf; + + if (rs485conf->flags & SER_RS485_ENABLED) { + dev_dbg(port->dev, "Setting UART to RS485\n"); + atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; + UART_PUT_TTGR(port, rs485conf->delay_rts_before_send); + mode |= ATMEL_US_USMODE_RS485; + } else { + dev_dbg(port->dev, "Setting UART to RS232\n"); + if (atmel_use_dma_tx(port)) + atmel_port->tx_done_mask = ATMEL_US_ENDTX | + ATMEL_US_TXBUFE; + else + atmel_port->tx_done_mask = ATMEL_US_TXRDY; + } + UART_PUT_MR(port, mode); + + /* Enable interrupts */ + UART_PUT_IER(port, atmel_port->tx_done_mask); + + spin_unlock(&port->lock); + +} + /* * Return TIOCSER_TEMT when transmitter FIFO and Shift register is empty. */ @@ -202,6 +250,7 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) { unsigned int control = 0; unsigned int mode; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); #ifdef CONFIG_ARCH_AT91RM9200 if (cpu_is_at91rm9200()) { @@ -236,6 +285,17 @@ static void atmel_set_mctrl(struct uart_port *port, u_int mctrl) mode |= ATMEL_US_CHMODE_LOC_LOOP; else mode |= ATMEL_US_CHMODE_NORMAL; + + /* Resetting serial mode to RS232 (0x0) */ + mode &= ~ATMEL_US_USMODE; + + if (atmel_port->rs485.flags & SER_RS485_ENABLED) { + dev_dbg(port->dev, "Setting UART to RS485\n"); + UART_PUT_TTGR(port, atmel_port->rs485.delay_rts_before_send); + mode |= ATMEL_US_USMODE_RS485; + } else { + dev_dbg(port->dev, "Setting UART to RS232\n"); + } UART_PUT_MR(port, mode); } @@ -268,12 +328,17 @@ static u_int atmel_get_mctrl(struct uart_port *port) */ static void atmel_stop_tx(struct uart_port *port) { + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + if (atmel_use_dma_tx(port)) { /* disable PDC transmit */ UART_PUT_PTCR(port, ATMEL_PDC_TXTDIS); - UART_PUT_IDR(port, ATMEL_US_ENDTX | ATMEL_US_TXBUFE); - } else - UART_PUT_IDR(port, ATMEL_US_TXRDY); + } + /* Disable interrupts */ + UART_PUT_IDR(port, atmel_port->tx_done_mask); + + if (atmel_port->rs485.flags & SER_RS485_ENABLED) + atmel_start_rx(port); } /* @@ -281,17 +346,39 @@ static void atmel_stop_tx(struct uart_port *port) */ static void atmel_start_tx(struct uart_port *port) { + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); + if (atmel_use_dma_tx(port)) { if (UART_GET_PTSR(port) & ATMEL_PDC_TXTEN) /* The transmitter is already running. Yes, we really need this.*/ return; - UART_PUT_IER(port, ATMEL_US_ENDTX | ATMEL_US_TXBUFE); + if (atmel_port->rs485.flags & SER_RS485_ENABLED) + atmel_stop_rx(port); + /* re-enable PDC transmit */ UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); - } else - UART_PUT_IER(port, ATMEL_US_TXRDY); + } + /* Enable interrupts */ + UART_PUT_IER(port, atmel_port->tx_done_mask); +} + +/* + * start receiving - port is in process of being opened. + */ +static void atmel_start_rx(struct uart_port *port) +{ + UART_PUT_CR(port, ATMEL_US_RSTSTA); /* reset status and receiver */ + + if (atmel_use_dma_rx(port)) { + /* enable PDC controller */ + UART_PUT_IER(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | + port->read_status_mask); + UART_PUT_PTCR(port, ATMEL_PDC_RXTEN); + } else { + UART_PUT_IER(port, ATMEL_US_RXRDY); + } } /* @@ -302,9 +389,11 @@ static void atmel_stop_rx(struct uart_port *port) if (atmel_use_dma_rx(port)) { /* disable PDC receive */ UART_PUT_PTCR(port, ATMEL_PDC_RXTDIS); - UART_PUT_IDR(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT); - } else + UART_PUT_IDR(port, ATMEL_US_ENDRX | ATMEL_US_TIMEOUT | + port->read_status_mask); + } else { UART_PUT_IDR(port, ATMEL_US_RXRDY); + } } /* @@ -428,8 +517,9 @@ static void atmel_rx_chars(struct uart_port *port) static void atmel_tx_chars(struct uart_port *port) { struct circ_buf *xmit = &port->state->xmit; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (port->x_char && UART_GET_CSR(port) & ATMEL_US_TXRDY) { + if (port->x_char && UART_GET_CSR(port) & atmel_port->tx_done_mask) { UART_PUT_CHAR(port, port->x_char); port->icount.tx++; port->x_char = 0; @@ -437,7 +527,7 @@ static void atmel_tx_chars(struct uart_port *port) if (uart_circ_empty(xmit) || uart_tx_stopped(port)) return; - while (UART_GET_CSR(port) & ATMEL_US_TXRDY) { + while (UART_GET_CSR(port) & atmel_port->tx_done_mask) { UART_PUT_CHAR(port, xmit->buf[xmit->tail]); xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); port->icount.tx++; @@ -449,7 +539,8 @@ static void atmel_tx_chars(struct uart_port *port) uart_write_wakeup(port); if (!uart_circ_empty(xmit)) - UART_PUT_IER(port, ATMEL_US_TXRDY); + /* Enable interrupts */ + UART_PUT_IER(port, atmel_port->tx_done_mask); } /* @@ -501,18 +592,10 @@ atmel_handle_transmit(struct uart_port *port, unsigned int pending) { struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); - if (atmel_use_dma_tx(port)) { - /* PDC transmit */ - if (pending & (ATMEL_US_ENDTX | ATMEL_US_TXBUFE)) { - UART_PUT_IDR(port, ATMEL_US_ENDTX | ATMEL_US_TXBUFE); - tasklet_schedule(&atmel_port->tasklet); - } - } else { - /* Interrupt transmit */ - if (pending & ATMEL_US_TXRDY) { - UART_PUT_IDR(port, ATMEL_US_TXRDY); - tasklet_schedule(&atmel_port->tasklet); - } + if (pending & atmel_port->tx_done_mask) { + /* Either PDC or interrupt transmission */ + UART_PUT_IDR(port, atmel_port->tx_done_mask); + tasklet_schedule(&atmel_port->tasklet); } } @@ -590,9 +673,15 @@ static void atmel_tx_dma(struct uart_port *port) UART_PUT_TPR(port, pdc->dma_addr + xmit->tail); UART_PUT_TCR(port, count); - /* re-enable PDC transmit and interrupts */ + /* re-enable PDC transmit */ UART_PUT_PTCR(port, ATMEL_PDC_TXTEN); - UART_PUT_IER(port, ATMEL_US_ENDTX | ATMEL_US_TXBUFE); + /* Enable interrupts */ + UART_PUT_IER(port, atmel_port->tx_done_mask); + } else { + if (atmel_port->rs485.flags & SER_RS485_ENABLED) { + /* DMA done, stop TX, start RX for RS485 */ + atmel_start_rx(port); + } } if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) @@ -1017,6 +1106,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, { unsigned long flags; unsigned int mode, imr, quot, baud; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); /* Get current mode register */ mode = UART_GET_MR(port) & ~(ATMEL_US_USCLKS | ATMEL_US_CHRL @@ -1115,6 +1205,17 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios, /* disable receiver and transmitter */ UART_PUT_CR(port, ATMEL_US_TXDIS | ATMEL_US_RXDIS); + /* Resetting serial mode to RS232 (0x0) */ + mode &= ~ATMEL_US_USMODE; + + if (atmel_port->rs485.flags & SER_RS485_ENABLED) { + dev_dbg(port->dev, "Setting UART to RS485\n"); + UART_PUT_TTGR(port, atmel_port->rs485.delay_rts_before_send); + mode |= ATMEL_US_USMODE_RS485; + } else { + dev_dbg(port->dev, "Setting UART to RS232\n"); + } + /* set the parity, stop bits and data size */ UART_PUT_MR(port, mode); @@ -1231,6 +1332,35 @@ static void atmel_poll_put_char(struct uart_port *port, unsigned char ch) } #endif +static int +atmel_ioctl(struct uart_port *port, unsigned int cmd, unsigned long arg) +{ + struct serial_rs485 rs485conf; + + switch (cmd) { + case TIOCSRS485: + if (copy_from_user(&rs485conf, (struct serial_rs485 *) arg, + sizeof(rs485conf))) + return -EFAULT; + + atmel_config_rs485(port, &rs485conf); + break; + + case TIOCGRS485: + if (copy_to_user((struct serial_rs485 *) arg, + &(to_atmel_uart_port(port)->rs485), + sizeof(rs485conf))) + return -EFAULT; + break; + + default: + return -ENOIOCTLCMD; + } + return 0; +} + + + static struct uart_ops atmel_pops = { .tx_empty = atmel_tx_empty, .set_mctrl = atmel_set_mctrl, @@ -1250,6 +1380,7 @@ static struct uart_ops atmel_pops = { .config_port = atmel_config_port, .verify_port = atmel_verify_port, .pm = atmel_serial_pm, + .ioctl = atmel_ioctl, #ifdef CONFIG_CONSOLE_POLL .poll_get_char = atmel_poll_get_char, .poll_put_char = atmel_poll_put_char, @@ -1265,13 +1396,12 @@ static void __devinit atmel_init_port(struct atmel_uart_port *atmel_port, struct uart_port *port = &atmel_port->uart; struct atmel_uart_data *data = pdev->dev.platform_data; - port->iotype = UPIO_MEM; - port->flags = UPF_BOOT_AUTOCONF; - port->ops = &atmel_pops; - port->fifosize = 1; - port->line = pdev->id; - port->dev = &pdev->dev; - + port->iotype = UPIO_MEM; + port->flags = UPF_BOOT_AUTOCONF; + port->ops = &atmel_pops; + port->fifosize = 1; + port->line = pdev->id; + port->dev = &pdev->dev; port->mapbase = pdev->resource[0].start; port->irq = pdev->resource[1].start; @@ -1299,8 +1429,16 @@ static void __devinit atmel_init_port(struct atmel_uart_port *atmel_port, atmel_port->use_dma_rx = data->use_dma_rx; atmel_port->use_dma_tx = data->use_dma_tx; - if (atmel_use_dma_tx(port)) + atmel_port->rs485 = data->rs485; + /* Use TXEMPTY for interrupt when rs485 else TXRDY or ENDTX|TXBUFE */ + if (atmel_port->rs485.flags & SER_RS485_ENABLED) + atmel_port->tx_done_mask = ATMEL_US_TXEMPTY; + else if (atmel_use_dma_tx(port)) { port->fifosize = PDC_BUFFER_SIZE; + atmel_port->tx_done_mask = ATMEL_US_ENDTX | ATMEL_US_TXBUFE; + } else { + atmel_port->tx_done_mask = ATMEL_US_TXRDY; + } } /* @@ -1334,6 +1472,7 @@ static void atmel_console_putchar(struct uart_port *port, int ch) static void atmel_console_write(struct console *co, const char *s, u_int count) { struct uart_port *port = &atmel_ports[co->index].uart; + struct atmel_uart_port *atmel_port = to_atmel_uart_port(port); unsigned int status, imr; unsigned int pdc_tx; @@ -1341,7 +1480,7 @@ static void atmel_console_write(struct console *co, const char *s, u_int count) * First, save IMR and then disable interrupts */ imr = UART_GET_IMR(port); - UART_PUT_IDR(port, ATMEL_US_RXRDY | ATMEL_US_TXRDY); + UART_PUT_IDR(port, ATMEL_US_RXRDY | atmel_port->tx_done_mask); /* Store PDC transmit status and disable it */ pdc_tx = UART_GET_PTSR(port) & ATMEL_PDC_TXTEN; diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 8cfa5b12ea7a..dadd686c9801 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -89,7 +89,6 @@ struct serial_info { int manfid; int prodid; int c950ctrl; - dev_node_t node[4]; int line[4]; const struct serial_quirk *quirk; }; @@ -289,8 +288,6 @@ static void serial_remove(struct pcmcia_device *link) for (i = 0; i < info->ndev; i++) serial8250_unregister_port(info->line[i]); - info->p_dev->dev_node = NULL; - if (!info->slave) pcmcia_disable_device(link); } @@ -343,7 +340,6 @@ static int serial_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; if (do_sound) { link->conf.Attributes |= CONF_ENABLE_SPKR; @@ -411,11 +407,6 @@ static int setup_serial(struct pcmcia_device *handle, struct serial_info * info, } info->line[info->ndev] = line; - sprintf(info->node[info->ndev].dev_name, "ttyS%d", line); - info->node[info->ndev].major = TTY_MAJOR; - info->node[info->ndev].minor = 0x40 + line; - if (info->ndev > 0) - info->node[info->ndev - 1].next = &info->node[info->ndev]; info->ndev++; return 0; @@ -486,7 +477,7 @@ static int simple_config(struct pcmcia_device *link) } if (info->slave) { return setup_serial(link, info, port, - link->irq.AssignedIRQ); + link->irq); } } @@ -507,10 +498,6 @@ static int simple_config(struct pcmcia_device *link) return -1; found_port: - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) - link->irq.AssignedIRQ = 0; - if (info->multi && (info->manfid == MANFID_3COM)) link->conf.ConfigIndex &= ~(0x08); @@ -523,7 +510,7 @@ found_port: i = pcmcia_request_configuration(link, &link->conf); if (i != 0) return -1; - return setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ); + return setup_serial(link, info, link->io.BasePort1, link->irq); } static int multi_config_check(struct pcmcia_device *p_dev, @@ -586,13 +573,9 @@ static int multi_config(struct pcmcia_device *link) } } - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { - /* FIXME: comment does not fit, error handling does not fit */ - printk(KERN_NOTICE - "serial_cs: no usable port range found, giving up\n"); - link->irq.AssignedIRQ = 0; - } + if (!link->irq) + dev_warn(&link->dev, + "serial_cs: no usable IRQ found, continuing...\n"); /* * Apply any configuration quirks. @@ -615,11 +598,11 @@ static int multi_config(struct pcmcia_device *link) if (link->conf.ConfigIndex == 1 || link->conf.ConfigIndex == 3) { err = setup_serial(link, info, base2, - link->irq.AssignedIRQ); + link->irq); base2 = link->io.BasePort1; } else { err = setup_serial(link, info, link->io.BasePort1, - link->irq.AssignedIRQ); + link->irq); } info->c950ctrl = base2; @@ -633,10 +616,10 @@ static int multi_config(struct pcmcia_device *link) return 0; } - setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ); + setup_serial(link, info, link->io.BasePort1, link->irq); for (i = 0; i < info->multi - 1; i++) setup_serial(link, info, base2 + (8 * i), - link->irq.AssignedIRQ); + link->irq); return 0; } @@ -720,7 +703,6 @@ static int serial_config(struct pcmcia_device * link) if (info->quirk->post(link)) goto failed; - link->dev_node = &info->node[0]; return 0; failed: diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index 8eb094c1f61b..8d993c4cceac 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -83,16 +83,16 @@ struct sci_port { /* Interface clock */ struct clk *iclk; - /* Data clock */ - struct clk *dclk; + /* Function clock */ + struct clk *fclk; struct list_head node; struct dma_chan *chan_tx; struct dma_chan *chan_rx; #ifdef CONFIG_SERIAL_SH_SCI_DMA struct device *dma_dev; - enum sh_dmae_slave_chan_id slave_tx; - enum sh_dmae_slave_chan_id slave_rx; + unsigned int slave_tx; + unsigned int slave_rx; struct dma_async_tx_descriptor *desc_tx; struct dma_async_tx_descriptor *desc_rx[2]; dma_cookie_t cookie_tx; @@ -107,6 +107,7 @@ struct sci_port { struct work_struct work_tx; struct work_struct work_rx; struct timer_list rx_timer; + unsigned int rx_timeout; #endif }; @@ -674,22 +675,22 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr) struct sci_port *s = to_sci_port(port); if (s->chan_rx) { - unsigned long tout; u16 scr = sci_in(port, SCSCR); u16 ssr = sci_in(port, SCxSR); /* Disable future Rx interrupts */ - sci_out(port, SCSCR, scr & ~SCI_CTRL_FLAGS_RIE); + if (port->type == PORT_SCIFA) { + disable_irq_nosync(irq); + scr |= 0x4000; + } else { + scr &= ~SCI_CTRL_FLAGS_RIE; + } + sci_out(port, SCSCR, scr); /* Clear current interrupt */ sci_out(port, SCxSR, ssr & ~(1 | SCxSR_RDxF(port))); - /* Calculate delay for 1.5 DMA buffers */ - tout = (port->timeout - HZ / 50) * s->buf_len_rx * 3 / - port->fifosize / 2; - dev_dbg(port->dev, "Rx IRQ: setup timeout in %lu ms\n", - tout * 1000 / HZ); - if (tout < 2) - tout = 2; - mod_timer(&s->rx_timer, jiffies + tout); + dev_dbg(port->dev, "Rx IRQ %lu: setup t-out in %u jiffies\n", + jiffies, s->rx_timeout); + mod_timer(&s->rx_timer, jiffies + s->rx_timeout); return IRQ_HANDLED; } @@ -799,7 +800,7 @@ static int sci_notifier(struct notifier_block *self, (phase == CPUFREQ_RESUMECHANGE)) { spin_lock_irqsave(&priv->lock, flags); list_for_each_entry(sci_port, &priv->ports, node) - sci_port->port.uartclk = clk_get_rate(sci_port->dclk); + sci_port->port.uartclk = clk_get_rate(sci_port->iclk); spin_unlock_irqrestore(&priv->lock, flags); } @@ -810,21 +811,17 @@ static void sci_clk_enable(struct uart_port *port) { struct sci_port *sci_port = to_sci_port(port); - clk_enable(sci_port->dclk); - sci_port->port.uartclk = clk_get_rate(sci_port->dclk); - - if (sci_port->iclk) - clk_enable(sci_port->iclk); + clk_enable(sci_port->iclk); + sci_port->port.uartclk = clk_get_rate(sci_port->iclk); + clk_enable(sci_port->fclk); } static void sci_clk_disable(struct uart_port *port) { struct sci_port *sci_port = to_sci_port(port); - if (sci_port->iclk) - clk_disable(sci_port->iclk); - - clk_disable(sci_port->dclk); + clk_disable(sci_port->fclk); + clk_disable(sci_port->iclk); } static int sci_request_irq(struct sci_port *port) @@ -913,22 +910,26 @@ static void sci_dma_tx_complete(void *arg) spin_lock_irqsave(&port->lock, flags); - xmit->tail += s->sg_tx.length; + xmit->tail += sg_dma_len(&s->sg_tx); xmit->tail &= UART_XMIT_SIZE - 1; - port->icount.tx += s->sg_tx.length; + port->icount.tx += sg_dma_len(&s->sg_tx); async_tx_ack(s->desc_tx); s->cookie_tx = -EINVAL; s->desc_tx = NULL; - spin_unlock_irqrestore(&port->lock, flags); - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) uart_write_wakeup(port); - if (uart_circ_chars_pending(xmit)) + if (!uart_circ_empty(xmit)) { schedule_work(&s->work_tx); + } else if (port->type == PORT_SCIFA) { + u16 ctrl = sci_in(port, SCSCR); + sci_out(port, SCSCR, ctrl & ~SCI_CTRL_FLAGS_TIE); + } + + spin_unlock_irqrestore(&port->lock, flags); } /* Locking: called with port lock held */ @@ -972,13 +973,13 @@ static void sci_dma_rx_complete(void *arg) unsigned long flags; int count; - dev_dbg(port->dev, "%s(%d)\n", __func__, port->line); + dev_dbg(port->dev, "%s(%d) active #%d\n", __func__, port->line, s->active_rx); spin_lock_irqsave(&port->lock, flags); count = sci_dma_rx_push(s, tty, s->buf_len_rx); - mod_timer(&s->rx_timer, jiffies + msecs_to_jiffies(5)); + mod_timer(&s->rx_timer, jiffies + s->rx_timeout); spin_unlock_irqrestore(&port->lock, flags); @@ -1050,6 +1051,8 @@ static void sci_submit_rx(struct sci_port *s) sci_rx_dma_release(s, true); return; } + dev_dbg(s->port.dev, "%s(): cookie %d to #%d\n", __func__, + s->cookie_rx[i], i); } s->active_rx = s->cookie_rx[0]; @@ -1107,10 +1110,10 @@ static void work_fn_rx(struct work_struct *work) return; } - dev_dbg(port->dev, "%s: cookie %d #%d\n", __func__, - s->cookie_rx[new], new); - s->active_rx = s->cookie_rx[!new]; + + dev_dbg(port->dev, "%s: cookie %d #%d, new active #%d\n", __func__, + s->cookie_rx[new], new, s->active_rx); } static void work_fn_tx(struct work_struct *work) @@ -1131,14 +1134,13 @@ static void work_fn_tx(struct work_struct *work) */ spin_lock_irq(&port->lock); sg->offset = xmit->tail & (UART_XMIT_SIZE - 1); - sg->dma_address = (sg_dma_address(sg) & ~(UART_XMIT_SIZE - 1)) + + sg_dma_address(sg) = (sg_dma_address(sg) & ~(UART_XMIT_SIZE - 1)) + sg->offset; - sg->length = min((int)CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE), + sg_dma_len(sg) = min((int)CIRC_CNT(xmit->head, xmit->tail, UART_XMIT_SIZE), CIRC_CNT_TO_END(xmit->head, xmit->tail, UART_XMIT_SIZE)); - sg->dma_length = sg->length; spin_unlock_irq(&port->lock); - BUG_ON(!sg->length); + BUG_ON(!sg_dma_len(sg)); desc = chan->device->device_prep_slave_sg(chan, sg, s->sg_len_tx, DMA_TO_DEVICE, @@ -1173,23 +1175,28 @@ static void work_fn_tx(struct work_struct *work) static void sci_start_tx(struct uart_port *port) { + struct sci_port *s = to_sci_port(port); unsigned short ctrl; #ifdef CONFIG_SERIAL_SH_SCI_DMA - struct sci_port *s = to_sci_port(port); - - if (s->chan_tx) { - if (!uart_circ_empty(&s->port.state->xmit) && s->cookie_tx < 0) - schedule_work(&s->work_tx); - - return; + if (port->type == PORT_SCIFA) { + u16 new, scr = sci_in(port, SCSCR); + if (s->chan_tx) + new = scr | 0x8000; + else + new = scr & ~0x8000; + if (new != scr) + sci_out(port, SCSCR, new); } + if (s->chan_tx && !uart_circ_empty(&s->port.state->xmit) && + s->cookie_tx < 0) + schedule_work(&s->work_tx); #endif - - /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */ - ctrl = sci_in(port, SCSCR); - ctrl |= SCI_CTRL_FLAGS_TIE; - sci_out(port, SCSCR, ctrl); + if (!s->chan_tx || port->type == PORT_SCIFA) { + /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */ + ctrl = sci_in(port, SCSCR); + sci_out(port, SCSCR, ctrl | SCI_CTRL_FLAGS_TIE); + } } static void sci_stop_tx(struct uart_port *port) @@ -1198,6 +1205,8 @@ static void sci_stop_tx(struct uart_port *port) /* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */ ctrl = sci_in(port, SCSCR); + if (port->type == PORT_SCIFA) + ctrl &= ~0x8000; ctrl &= ~SCI_CTRL_FLAGS_TIE; sci_out(port, SCSCR, ctrl); } @@ -1208,6 +1217,8 @@ static void sci_start_rx(struct uart_port *port) /* Set RIE (Receive Interrupt Enable) bit in SCSCR */ ctrl |= sci_in(port, SCSCR); + if (port->type == PORT_SCIFA) + ctrl &= ~0x4000; sci_out(port, SCSCR, ctrl); } @@ -1217,6 +1228,8 @@ static void sci_stop_rx(struct uart_port *port) /* Clear RIE (Receive Interrupt Enable) bit in SCSCR */ ctrl = sci_in(port, SCSCR); + if (port->type == PORT_SCIFA) + ctrl &= ~0x4000; ctrl &= ~(SCI_CTRL_FLAGS_RIE | SCI_CTRL_FLAGS_REIE); sci_out(port, SCSCR, ctrl); } @@ -1251,8 +1264,12 @@ static void rx_timer_fn(unsigned long arg) { struct sci_port *s = (struct sci_port *)arg; struct uart_port *port = &s->port; - u16 scr = sci_in(port, SCSCR); + + if (port->type == PORT_SCIFA) { + scr &= ~0x4000; + enable_irq(s->irqs[1]); + } sci_out(port, SCSCR, scr | SCI_CTRL_FLAGS_RIE); dev_dbg(port->dev, "DMA Rx timed out\n"); schedule_work(&s->work_rx); @@ -1339,8 +1356,7 @@ static void sci_request_dma(struct uart_port *port) sg_init_table(sg, 1); sg_set_page(sg, virt_to_page(buf[i]), s->buf_len_rx, (int)buf[i] & ~PAGE_MASK); - sg->dma_address = dma[i]; - sg->dma_length = sg->length; + sg_dma_address(sg) = dma[i]; } INIT_WORK(&s->work_rx, work_fn_rx); @@ -1403,8 +1419,12 @@ static void sci_shutdown(struct uart_port *port) static void sci_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { +#ifdef CONFIG_SERIAL_SH_SCI_DMA + struct sci_port *s = to_sci_port(port); +#endif unsigned int status, baud, smr_val, max_baud; int t = -1; + u16 scfcr = 0; /* * earlyprintk comes here early on with port->uartclk set to zero. @@ -1427,7 +1447,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */ if (port->type != PORT_SCI) - sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); + sci_out(port, SCFCR, scfcr | SCFCR_RFRST | SCFCR_TFRST); smr_val = sci_in(port, SCSMR) & 3; if ((termios->c_cflag & CSIZE) == CS7) @@ -1458,10 +1478,32 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios, } sci_init_pins(port, termios->c_cflag); - sci_out(port, SCFCR, (termios->c_cflag & CRTSCTS) ? SCFCR_MCE : 0); + sci_out(port, SCFCR, scfcr | ((termios->c_cflag & CRTSCTS) ? SCFCR_MCE : 0)); sci_out(port, SCSCR, SCSCR_INIT(port)); +#ifdef CONFIG_SERIAL_SH_SCI_DMA + /* + * Calculate delay for 1.5 DMA buffers: see + * drivers/serial/serial_core.c::uart_update_timeout(). With 10 bits + * (CS8), 250Hz, 115200 baud and 64 bytes FIFO, the above function + * calculates 1 jiffie for the data plus 5 jiffies for the "slop(e)." + * Then below we calculate 3 jiffies (12ms) for 1.5 DMA buffers (3 FIFO + * sizes), but it has been found out experimentally, that this is not + * enough: the driver too often needlessly runs on a DMA timeout. 20ms + * as a minimum seem to work perfectly. + */ + if (s->chan_rx) { + s->rx_timeout = (port->timeout - HZ / 50) * s->buf_len_rx * 3 / + port->fifosize / 2; + dev_dbg(port->dev, + "DMA Rx t-out %ums, tty t-out %u jiffies\n", + s->rx_timeout * 1000 / HZ, port->timeout); + if (s->rx_timeout < msecs_to_jiffies(20)) + s->rx_timeout = msecs_to_jiffies(20); + } +#endif + if ((termios->c_cflag & CREAD) != 0) sci_start_rx(port); } @@ -1553,10 +1595,10 @@ static struct uart_ops sci_uart_ops = { #endif }; -static void __devinit sci_init_single(struct platform_device *dev, - struct sci_port *sci_port, - unsigned int index, - struct plat_sci_port *p) +static int __devinit sci_init_single(struct platform_device *dev, + struct sci_port *sci_port, + unsigned int index, + struct plat_sci_port *p) { struct uart_port *port = &sci_port->port; @@ -1577,8 +1619,23 @@ static void __devinit sci_init_single(struct platform_device *dev, } if (dev) { - sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL; - sci_port->dclk = clk_get(&dev->dev, "peripheral_clk"); + sci_port->iclk = clk_get(&dev->dev, "sci_ick"); + if (IS_ERR(sci_port->iclk)) { + sci_port->iclk = clk_get(&dev->dev, "peripheral_clk"); + if (IS_ERR(sci_port->iclk)) { + dev_err(&dev->dev, "can't get iclk\n"); + return PTR_ERR(sci_port->iclk); + } + } + + /* + * The function clock is optional, ignore it if we can't + * find it. + */ + sci_port->fclk = clk_get(&dev->dev, "sci_fck"); + if (IS_ERR(sci_port->fclk)) + sci_port->fclk = NULL; + sci_port->enable = sci_clk_enable; sci_port->disable = sci_clk_disable; port->dev = &dev->dev; @@ -1605,6 +1662,7 @@ static void __devinit sci_init_single(struct platform_device *dev, #endif memcpy(&sci_port->irqs, &p->irqs, sizeof(p->irqs)); + return 0; } #ifdef CONFIG_SERIAL_SH_SCI_CONSOLE @@ -1754,8 +1812,11 @@ static int sci_remove(struct platform_device *dev) cpufreq_unregister_notifier(&priv->clk_nb, CPUFREQ_TRANSITION_NOTIFIER); spin_lock_irqsave(&priv->lock, flags); - list_for_each_entry(p, &priv->ports, node) + list_for_each_entry(p, &priv->ports, node) { uart_remove_one_port(&sci_uart_driver, &p->port); + clk_put(p->iclk); + clk_put(p->fclk); + } spin_unlock_irqrestore(&priv->lock, flags); kfree(priv); @@ -1781,7 +1842,9 @@ static int __devinit sci_probe_single(struct platform_device *dev, return 0; } - sci_init_single(dev, sciport, index, p); + ret = sci_init_single(dev, sciport, index, p); + if (ret) + return ret; ret = uart_add_one_port(&sci_uart_driver, &sciport->port); if (ret) diff --git a/drivers/sh/Kconfig b/drivers/sh/Kconfig new file mode 100644 index 000000000000..a54de0b9b3df --- /dev/null +++ b/drivers/sh/Kconfig @@ -0,0 +1,24 @@ +config INTC_USERIMASK + bool "Userspace interrupt masking support" + depends on ARCH_SHMOBILE || (SUPERH && CPU_SH4A) + help + This enables support for hardware-assisted userspace hardirq + masking. + + SH-4A and newer interrupt blocks all support a special shadowed + page with all non-masking registers obscured when mapped in to + userspace. This is primarily for use by userspace device + drivers that are using special priority levels. + + If in doubt, say N. + +config INTC_BALANCING + bool "Hardware IRQ balancing support" + depends on SMP && SUPERH && CPU_SUBTYPE_SH7786 + help + This enables support for IRQ auto-distribution mode on SH-X3 + SMP parts. All of the balancing and CPU wakeup decisions are + taken care of automatically by hardware for distributed + vectors. + + If in doubt, say N. diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile index 4956bf1f2134..78bb5127abd0 100644 --- a/drivers/sh/Makefile +++ b/drivers/sh/Makefile @@ -4,4 +4,6 @@ obj-$(CONFIG_SUPERHYWAY) += superhyway/ obj-$(CONFIG_MAPLE) += maple/ obj-$(CONFIG_GENERIC_GPIO) += pfc.o +obj-$(CONFIG_SUPERH) += clk.o +obj-$(CONFIG_SH_CLK_CPG) += clk-cpg.o obj-y += intc.o diff --git a/drivers/sh/clk-cpg.c b/drivers/sh/clk-cpg.c new file mode 100644 index 000000000000..f5c80ba9ab1c --- /dev/null +++ b/drivers/sh/clk-cpg.c @@ -0,0 +1,298 @@ +#include <linux/clk.h> +#include <linux/compiler.h> +#include <linux/slab.h> +#include <linux/io.h> +#include <linux/sh_clk.h> + +static int sh_clk_mstp32_enable(struct clk *clk) +{ + __raw_writel(__raw_readl(clk->enable_reg) & ~(1 << clk->enable_bit), + clk->enable_reg); + return 0; +} + +static void sh_clk_mstp32_disable(struct clk *clk) +{ + __raw_writel(__raw_readl(clk->enable_reg) | (1 << clk->enable_bit), + clk->enable_reg); +} + +static struct clk_ops sh_clk_mstp32_clk_ops = { + .enable = sh_clk_mstp32_enable, + .disable = sh_clk_mstp32_disable, + .recalc = followparent_recalc, +}; + +int __init sh_clk_mstp32_register(struct clk *clks, int nr) +{ + struct clk *clkp; + int ret = 0; + int k; + + for (k = 0; !ret && (k < nr); k++) { + clkp = clks + k; + clkp->ops = &sh_clk_mstp32_clk_ops; + ret |= clk_register(clkp); + } + + return ret; +} + +static long sh_clk_div_round_rate(struct clk *clk, unsigned long rate) +{ + return clk_rate_table_round(clk, clk->freq_table, rate); +} + +static int sh_clk_div6_divisors[64] = { + 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, + 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, + 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, + 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64 +}; + +static struct clk_div_mult_table sh_clk_div6_table = { + .divisors = sh_clk_div6_divisors, + .nr_divisors = ARRAY_SIZE(sh_clk_div6_divisors), +}; + +static unsigned long sh_clk_div6_recalc(struct clk *clk) +{ + struct clk_div_mult_table *table = &sh_clk_div6_table; + unsigned int idx; + + clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, + table, NULL); + + idx = __raw_readl(clk->enable_reg) & 0x003f; + + return clk->freq_table[idx].frequency; +} + +static int sh_clk_div6_set_rate(struct clk *clk, + unsigned long rate, int algo_id) +{ + unsigned long value; + int idx; + + idx = clk_rate_table_find(clk, clk->freq_table, rate); + if (idx < 0) + return idx; + + value = __raw_readl(clk->enable_reg); + value &= ~0x3f; + value |= idx; + __raw_writel(value, clk->enable_reg); + return 0; +} + +static int sh_clk_div6_enable(struct clk *clk) +{ + unsigned long value; + int ret; + + ret = sh_clk_div6_set_rate(clk, clk->rate, 0); + if (ret == 0) { + value = __raw_readl(clk->enable_reg); + value &= ~0x100; /* clear stop bit to enable clock */ + __raw_writel(value, clk->enable_reg); + } + return ret; +} + +static void sh_clk_div6_disable(struct clk *clk) +{ + unsigned long value; + + value = __raw_readl(clk->enable_reg); + value |= 0x100; /* stop clock */ + value |= 0x3f; /* VDIV bits must be non-zero, overwrite divider */ + __raw_writel(value, clk->enable_reg); +} + +static struct clk_ops sh_clk_div6_clk_ops = { + .recalc = sh_clk_div6_recalc, + .round_rate = sh_clk_div_round_rate, + .set_rate = sh_clk_div6_set_rate, + .enable = sh_clk_div6_enable, + .disable = sh_clk_div6_disable, +}; + +int __init sh_clk_div6_register(struct clk *clks, int nr) +{ + struct clk *clkp; + void *freq_table; + int nr_divs = sh_clk_div6_table.nr_divisors; + int freq_table_size = sizeof(struct cpufreq_frequency_table); + int ret = 0; + int k; + + freq_table_size *= (nr_divs + 1); + freq_table = kzalloc(freq_table_size * nr, GFP_KERNEL); + if (!freq_table) { + pr_err("sh_clk_div6_register: unable to alloc memory\n"); + return -ENOMEM; + } + + for (k = 0; !ret && (k < nr); k++) { + clkp = clks + k; + + clkp->ops = &sh_clk_div6_clk_ops; + clkp->id = -1; + clkp->freq_table = freq_table + (k * freq_table_size); + clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END; + + ret = clk_register(clkp); + } + + return ret; +} + +static unsigned long sh_clk_div4_recalc(struct clk *clk) +{ + struct clk_div4_table *d4t = clk->priv; + struct clk_div_mult_table *table = d4t->div_mult_table; + unsigned int idx; + + clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, + table, &clk->arch_flags); + + idx = (__raw_readl(clk->enable_reg) >> clk->enable_bit) & 0x000f; + + return clk->freq_table[idx].frequency; +} + +static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) +{ + struct clk_div4_table *d4t = clk->priv; + struct clk_div_mult_table *table = d4t->div_mult_table; + u32 value; + int ret; + + /* we really need a better way to determine parent index, but for + * now assume internal parent comes with CLK_ENABLE_ON_INIT set, + * no CLK_ENABLE_ON_INIT means external clock... + */ + + if (parent->flags & CLK_ENABLE_ON_INIT) + value = __raw_readl(clk->enable_reg) & ~(1 << 7); + else + value = __raw_readl(clk->enable_reg) | (1 << 7); + + ret = clk_reparent(clk, parent); + if (ret < 0) + return ret; + + __raw_writel(value, clk->enable_reg); + + /* Rebiuld the frequency table */ + clk_rate_table_build(clk, clk->freq_table, table->nr_divisors, + table, &clk->arch_flags); + + return 0; +} + +static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate, int algo_id) +{ + struct clk_div4_table *d4t = clk->priv; + unsigned long value; + int idx = clk_rate_table_find(clk, clk->freq_table, rate); + if (idx < 0) + return idx; + + value = __raw_readl(clk->enable_reg); + value &= ~(0xf << clk->enable_bit); + value |= (idx << clk->enable_bit); + __raw_writel(value, clk->enable_reg); + + if (d4t->kick) + d4t->kick(clk); + + return 0; +} + +static int sh_clk_div4_enable(struct clk *clk) +{ + __raw_writel(__raw_readl(clk->enable_reg) & ~(1 << 8), clk->enable_reg); + return 0; +} + +static void sh_clk_div4_disable(struct clk *clk) +{ + __raw_writel(__raw_readl(clk->enable_reg) | (1 << 8), clk->enable_reg); +} + +static struct clk_ops sh_clk_div4_clk_ops = { + .recalc = sh_clk_div4_recalc, + .set_rate = sh_clk_div4_set_rate, + .round_rate = sh_clk_div_round_rate, +}; + +static struct clk_ops sh_clk_div4_enable_clk_ops = { + .recalc = sh_clk_div4_recalc, + .set_rate = sh_clk_div4_set_rate, + .round_rate = sh_clk_div_round_rate, + .enable = sh_clk_div4_enable, + .disable = sh_clk_div4_disable, +}; + +static struct clk_ops sh_clk_div4_reparent_clk_ops = { + .recalc = sh_clk_div4_recalc, + .set_rate = sh_clk_div4_set_rate, + .round_rate = sh_clk_div_round_rate, + .enable = sh_clk_div4_enable, + .disable = sh_clk_div4_disable, + .set_parent = sh_clk_div4_set_parent, +}; + +static int __init sh_clk_div4_register_ops(struct clk *clks, int nr, + struct clk_div4_table *table, struct clk_ops *ops) +{ + struct clk *clkp; + void *freq_table; + int nr_divs = table->div_mult_table->nr_divisors; + int freq_table_size = sizeof(struct cpufreq_frequency_table); + int ret = 0; + int k; + + freq_table_size *= (nr_divs + 1); + freq_table = kzalloc(freq_table_size * nr, GFP_KERNEL); + if (!freq_table) { + pr_err("sh_clk_div4_register: unable to alloc memory\n"); + return -ENOMEM; + } + + for (k = 0; !ret && (k < nr); k++) { + clkp = clks + k; + + clkp->ops = ops; + clkp->id = -1; + clkp->priv = table; + + clkp->freq_table = freq_table + (k * freq_table_size); + clkp->freq_table[nr_divs].frequency = CPUFREQ_TABLE_END; + + ret = clk_register(clkp); + } + + return ret; +} + +int __init sh_clk_div4_register(struct clk *clks, int nr, + struct clk_div4_table *table) +{ + return sh_clk_div4_register_ops(clks, nr, table, &sh_clk_div4_clk_ops); +} + +int __init sh_clk_div4_enable_register(struct clk *clks, int nr, + struct clk_div4_table *table) +{ + return sh_clk_div4_register_ops(clks, nr, table, + &sh_clk_div4_enable_clk_ops); +} + +int __init sh_clk_div4_reparent_register(struct clk *clks, int nr, + struct clk_div4_table *table) +{ + return sh_clk_div4_register_ops(clks, nr, table, + &sh_clk_div4_reparent_clk_ops); +} diff --git a/drivers/sh/clk.c b/drivers/sh/clk.c new file mode 100644 index 000000000000..5d84adac9ec4 --- /dev/null +++ b/drivers/sh/clk.c @@ -0,0 +1,545 @@ +/* + * drivers/sh/clk.c - SuperH clock framework + * + * Copyright (C) 2005 - 2009 Paul Mundt + * + * This clock framework is derived from the OMAP version by: + * + * Copyright (C) 2004 - 2008 Nokia Corporation + * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com> + * + * Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com> + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/list.h> +#include <linux/kobject.h> +#include <linux/sysdev.h> +#include <linux/seq_file.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/debugfs.h> +#include <linux/cpufreq.h> +#include <linux/clk.h> +#include <linux/sh_clk.h> + +static LIST_HEAD(clock_list); +static DEFINE_SPINLOCK(clock_lock); +static DEFINE_MUTEX(clock_list_sem); + +void clk_rate_table_build(struct clk *clk, + struct cpufreq_frequency_table *freq_table, + int nr_freqs, + struct clk_div_mult_table *src_table, + unsigned long *bitmap) +{ + unsigned long mult, div; + unsigned long freq; + int i; + + for (i = 0; i < nr_freqs; i++) { + div = 1; + mult = 1; + + if (src_table->divisors && i < src_table->nr_divisors) + div = src_table->divisors[i]; + + if (src_table->multipliers && i < src_table->nr_multipliers) + mult = src_table->multipliers[i]; + + if (!div || !mult || (bitmap && !test_bit(i, bitmap))) + freq = CPUFREQ_ENTRY_INVALID; + else + freq = clk->parent->rate * mult / div; + + freq_table[i].index = i; + freq_table[i].frequency = freq; + } + + /* Termination entry */ + freq_table[i].index = i; + freq_table[i].frequency = CPUFREQ_TABLE_END; +} + +long clk_rate_table_round(struct clk *clk, + struct cpufreq_frequency_table *freq_table, + unsigned long rate) +{ + unsigned long rate_error, rate_error_prev = ~0UL; + unsigned long rate_best_fit = rate; + unsigned long highest, lowest; + int i; + + highest = lowest = 0; + + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { + unsigned long freq = freq_table[i].frequency; + + if (freq == CPUFREQ_ENTRY_INVALID) + continue; + + if (freq > highest) + highest = freq; + if (freq < lowest) + lowest = freq; + + rate_error = abs(freq - rate); + if (rate_error < rate_error_prev) { + rate_best_fit = freq; + rate_error_prev = rate_error; + } + + if (rate_error == 0) + break; + } + + if (rate >= highest) + rate_best_fit = highest; + if (rate <= lowest) + rate_best_fit = lowest; + + return rate_best_fit; +} + +int clk_rate_table_find(struct clk *clk, + struct cpufreq_frequency_table *freq_table, + unsigned long rate) +{ + int i; + + for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++) { + unsigned long freq = freq_table[i].frequency; + + if (freq == CPUFREQ_ENTRY_INVALID) + continue; + + if (freq == rate) + return i; + } + + return -ENOENT; +} + +/* Used for clocks that always have same value as the parent clock */ +unsigned long followparent_recalc(struct clk *clk) +{ + return clk->parent ? clk->parent->rate : 0; +} + +int clk_reparent(struct clk *child, struct clk *parent) +{ + list_del_init(&child->sibling); + if (parent) + list_add(&child->sibling, &parent->children); + child->parent = parent; + + /* now do the debugfs renaming to reattach the child + to the proper parent */ + + return 0; +} + +/* Propagate rate to children */ +void propagate_rate(struct clk *tclk) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &tclk->children, sibling) { + if (clkp->ops && clkp->ops->recalc) + clkp->rate = clkp->ops->recalc(clkp); + + propagate_rate(clkp); + } +} + +static void __clk_disable(struct clk *clk) +{ + if (WARN(!clk->usecount, "Trying to disable clock %s with 0 usecount\n", + clk->name)) + return; + + if (!(--clk->usecount)) { + if (likely(clk->ops && clk->ops->disable)) + clk->ops->disable(clk); + if (likely(clk->parent)) + __clk_disable(clk->parent); + } +} + +void clk_disable(struct clk *clk) +{ + unsigned long flags; + + if (!clk) + return; + + spin_lock_irqsave(&clock_lock, flags); + __clk_disable(clk); + spin_unlock_irqrestore(&clock_lock, flags); +} +EXPORT_SYMBOL_GPL(clk_disable); + +static int __clk_enable(struct clk *clk) +{ + int ret = 0; + + if (clk->usecount++ == 0) { + if (clk->parent) { + ret = __clk_enable(clk->parent); + if (unlikely(ret)) + goto err; + } + + if (clk->ops && clk->ops->enable) { + ret = clk->ops->enable(clk); + if (ret) { + if (clk->parent) + __clk_disable(clk->parent); + goto err; + } + } + } + + return ret; +err: + clk->usecount--; + return ret; +} + +int clk_enable(struct clk *clk) +{ + unsigned long flags; + int ret; + + if (!clk) + return -EINVAL; + + spin_lock_irqsave(&clock_lock, flags); + ret = __clk_enable(clk); + spin_unlock_irqrestore(&clock_lock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(clk_enable); + +static LIST_HEAD(root_clks); + +/** + * recalculate_root_clocks - recalculate and propagate all root clocks + * + * Recalculates all root clocks (clocks with no parent), which if the + * clock's .recalc is set correctly, should also propagate their rates. + * Called at init. + */ +void recalculate_root_clocks(void) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &root_clks, sibling) { + if (clkp->ops && clkp->ops->recalc) + clkp->rate = clkp->ops->recalc(clkp); + propagate_rate(clkp); + } +} + +int clk_register(struct clk *clk) +{ + if (clk == NULL || IS_ERR(clk)) + return -EINVAL; + + /* + * trap out already registered clocks + */ + if (clk->node.next || clk->node.prev) + return 0; + + mutex_lock(&clock_list_sem); + + INIT_LIST_HEAD(&clk->children); + clk->usecount = 0; + + if (clk->parent) + list_add(&clk->sibling, &clk->parent->children); + else + list_add(&clk->sibling, &root_clks); + + list_add(&clk->node, &clock_list); + if (clk->ops && clk->ops->init) + clk->ops->init(clk); + mutex_unlock(&clock_list_sem); + + return 0; +} +EXPORT_SYMBOL_GPL(clk_register); + +void clk_unregister(struct clk *clk) +{ + mutex_lock(&clock_list_sem); + list_del(&clk->sibling); + list_del(&clk->node); + mutex_unlock(&clock_list_sem); +} +EXPORT_SYMBOL_GPL(clk_unregister); + +void clk_enable_init_clocks(void) +{ + struct clk *clkp; + + list_for_each_entry(clkp, &clock_list, node) + if (clkp->flags & CLK_ENABLE_ON_INIT) + clk_enable(clkp); +} + +unsigned long clk_get_rate(struct clk *clk) +{ + return clk->rate; +} +EXPORT_SYMBOL_GPL(clk_get_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + return clk_set_rate_ex(clk, rate, 0); +} +EXPORT_SYMBOL_GPL(clk_set_rate); + +int clk_set_rate_ex(struct clk *clk, unsigned long rate, int algo_id) +{ + int ret = -EOPNOTSUPP; + unsigned long flags; + + spin_lock_irqsave(&clock_lock, flags); + + if (likely(clk->ops && clk->ops->set_rate)) { + ret = clk->ops->set_rate(clk, rate, algo_id); + if (ret != 0) + goto out_unlock; + } else { + clk->rate = rate; + ret = 0; + } + + if (clk->ops && clk->ops->recalc) + clk->rate = clk->ops->recalc(clk); + + propagate_rate(clk); + +out_unlock: + spin_unlock_irqrestore(&clock_lock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(clk_set_rate_ex); + +int clk_set_parent(struct clk *clk, struct clk *parent) +{ + unsigned long flags; + int ret = -EINVAL; + + if (!parent || !clk) + return ret; + if (clk->parent == parent) + return 0; + + spin_lock_irqsave(&clock_lock, flags); + if (clk->usecount == 0) { + if (clk->ops->set_parent) + ret = clk->ops->set_parent(clk, parent); + else + ret = clk_reparent(clk, parent); + + if (ret == 0) { + pr_debug("clock: set parent of %s to %s (new rate %ld)\n", + clk->name, clk->parent->name, clk->rate); + if (clk->ops->recalc) + clk->rate = clk->ops->recalc(clk); + propagate_rate(clk); + } + } else + ret = -EBUSY; + spin_unlock_irqrestore(&clock_lock, flags); + + return ret; +} +EXPORT_SYMBOL_GPL(clk_set_parent); + +struct clk *clk_get_parent(struct clk *clk) +{ + return clk->parent; +} +EXPORT_SYMBOL_GPL(clk_get_parent); + +long clk_round_rate(struct clk *clk, unsigned long rate) +{ + if (likely(clk->ops && clk->ops->round_rate)) { + unsigned long flags, rounded; + + spin_lock_irqsave(&clock_lock, flags); + rounded = clk->ops->round_rate(clk, rate); + spin_unlock_irqrestore(&clock_lock, flags); + + return rounded; + } + + return clk_get_rate(clk); +} +EXPORT_SYMBOL_GPL(clk_round_rate); + +#ifdef CONFIG_PM +static int clks_sysdev_suspend(struct sys_device *dev, pm_message_t state) +{ + static pm_message_t prev_state; + struct clk *clkp; + + switch (state.event) { + case PM_EVENT_ON: + /* Resumeing from hibernation */ + if (prev_state.event != PM_EVENT_FREEZE) + break; + + list_for_each_entry(clkp, &clock_list, node) { + if (likely(clkp->ops)) { + unsigned long rate = clkp->rate; + + if (likely(clkp->ops->set_parent)) + clkp->ops->set_parent(clkp, + clkp->parent); + if (likely(clkp->ops->set_rate)) + clkp->ops->set_rate(clkp, + rate, NO_CHANGE); + else if (likely(clkp->ops->recalc)) + clkp->rate = clkp->ops->recalc(clkp); + } + } + break; + case PM_EVENT_FREEZE: + break; + case PM_EVENT_SUSPEND: + break; + } + + prev_state = state; + return 0; +} + +static int clks_sysdev_resume(struct sys_device *dev) +{ + return clks_sysdev_suspend(dev, PMSG_ON); +} + +static struct sysdev_class clks_sysdev_class = { + .name = "clks", +}; + +static struct sysdev_driver clks_sysdev_driver = { + .suspend = clks_sysdev_suspend, + .resume = clks_sysdev_resume, +}; + +static struct sys_device clks_sysdev_dev = { + .cls = &clks_sysdev_class, +}; + +static int __init clk_sysdev_init(void) +{ + sysdev_class_register(&clks_sysdev_class); + sysdev_driver_register(&clks_sysdev_class, &clks_sysdev_driver); + sysdev_register(&clks_sysdev_dev); + + return 0; +} +subsys_initcall(clk_sysdev_init); +#endif + +/* + * debugfs support to trace clock tree hierarchy and attributes + */ +static struct dentry *clk_debugfs_root; + +static int clk_debugfs_register_one(struct clk *c) +{ + int err; + struct dentry *d, *child, *child_tmp; + struct clk *pa = c->parent; + char s[255]; + char *p = s; + + p += sprintf(p, "%s", c->name); + if (c->id >= 0) + sprintf(p, ":%d", c->id); + d = debugfs_create_dir(s, pa ? pa->dentry : clk_debugfs_root); + if (!d) + return -ENOMEM; + c->dentry = d; + + d = debugfs_create_u8("usecount", S_IRUGO, c->dentry, (u8 *)&c->usecount); + if (!d) { + err = -ENOMEM; + goto err_out; + } + d = debugfs_create_u32("rate", S_IRUGO, c->dentry, (u32 *)&c->rate); + if (!d) { + err = -ENOMEM; + goto err_out; + } + d = debugfs_create_x32("flags", S_IRUGO, c->dentry, (u32 *)&c->flags); + if (!d) { + err = -ENOMEM; + goto err_out; + } + return 0; + +err_out: + d = c->dentry; + list_for_each_entry_safe(child, child_tmp, &d->d_subdirs, d_u.d_child) + debugfs_remove(child); + debugfs_remove(c->dentry); + return err; +} + +static int clk_debugfs_register(struct clk *c) +{ + int err; + struct clk *pa = c->parent; + + if (pa && !pa->dentry) { + err = clk_debugfs_register(pa); + if (err) + return err; + } + + if (!c->dentry && c->name) { + err = clk_debugfs_register_one(c); + if (err) + return err; + } + return 0; +} + +static int __init clk_debugfs_init(void) +{ + struct clk *c; + struct dentry *d; + int err; + + d = debugfs_create_dir("clock", NULL); + if (!d) + return -ENOMEM; + clk_debugfs_root = d; + + list_for_each_entry(c, &clock_list, node) { + err = clk_debugfs_register(c); + if (err) + goto err_out; + } + return 0; +err_out: + debugfs_remove_recursive(clk_debugfs_root); + return err; +} +late_initcall(clk_debugfs_init); diff --git a/drivers/sh/intc.c b/drivers/sh/intc.c index 94ad6bd86a00..c585574b9aed 100644 --- a/drivers/sh/intc.c +++ b/drivers/sh/intc.c @@ -28,6 +28,7 @@ #include <linux/topology.h> #include <linux/bitmap.h> #include <linux/cpumask.h> +#include <asm/sizes.h> #define _INTC_MK(fn, mode, addr_e, addr_d, width, shift) \ ((shift) | ((width) << 5) | ((fn) << 9) | ((mode) << 13) | \ @@ -45,6 +46,12 @@ struct intc_handle_int { unsigned long handle; }; +struct intc_window { + phys_addr_t phys; + void __iomem *virt; + unsigned long size; +}; + struct intc_desc_int { struct list_head list; struct sys_device sysdev; @@ -58,6 +65,8 @@ struct intc_desc_int { unsigned int nr_prio; struct intc_handle_int *sense; unsigned int nr_sense; + struct intc_window *window; + unsigned int nr_windows; struct irq_chip chip; }; @@ -87,8 +96,12 @@ static DEFINE_SPINLOCK(vector_lock); #define SMP_NR(d, x) 1 #endif -static unsigned int intc_prio_level[NR_IRQS]; /* for now */ +static unsigned int intc_prio_level[NR_IRQS]; /* for now */ +static unsigned int default_prio_level = 2; /* 2 - 16 */ static unsigned long ack_handle[NR_IRQS]; +#ifdef CONFIG_INTC_BALANCING +static unsigned long dist_handle[NR_IRQS]; +#endif static inline struct intc_desc_int *get_intc_desc(unsigned int irq) { @@ -96,6 +109,47 @@ static inline struct intc_desc_int *get_intc_desc(unsigned int irq) return container_of(chip, struct intc_desc_int, chip); } +static unsigned long intc_phys_to_virt(struct intc_desc_int *d, + unsigned long address) +{ + struct intc_window *window; + int k; + + /* scan through physical windows and convert address */ + for (k = 0; k < d->nr_windows; k++) { + window = d->window + k; + + if (address < window->phys) + continue; + + if (address >= (window->phys + window->size)) + continue; + + address -= window->phys; + address += (unsigned long)window->virt; + + return address; + } + + /* no windows defined, register must be 1:1 mapped virt:phys */ + return address; +} + +static unsigned int intc_get_reg(struct intc_desc_int *d, unsigned long address) +{ + unsigned int k; + + address = intc_phys_to_virt(d, address); + + for (k = 0; k < d->nr_reg; k++) { + if (d->reg[k] == address) + return k; + } + + BUG(); + return 0; +} + static inline unsigned int set_field(unsigned int value, unsigned int field_value, unsigned int handle) @@ -229,6 +283,85 @@ static void (*intc_disable_fns[])(unsigned long addr, [MODE_PCLR_REG] = intc_mode_field, }; +#ifdef CONFIG_INTC_BALANCING +static inline void intc_balancing_enable(unsigned int irq) +{ + struct intc_desc_int *d = get_intc_desc(irq); + unsigned long handle = dist_handle[irq]; + unsigned long addr; + + if (irq_balancing_disabled(irq) || !handle) + return; + + addr = INTC_REG(d, _INTC_ADDR_D(handle), 0); + intc_reg_fns[_INTC_FN(handle)](addr, handle, 1); +} + +static inline void intc_balancing_disable(unsigned int irq) +{ + struct intc_desc_int *d = get_intc_desc(irq); + unsigned long handle = dist_handle[irq]; + unsigned long addr; + + if (irq_balancing_disabled(irq) || !handle) + return; + + addr = INTC_REG(d, _INTC_ADDR_D(handle), 0); + intc_reg_fns[_INTC_FN(handle)](addr, handle, 0); +} + +static unsigned int intc_dist_data(struct intc_desc *desc, + struct intc_desc_int *d, + intc_enum enum_id) +{ + struct intc_mask_reg *mr = desc->hw.mask_regs; + unsigned int i, j, fn, mode; + unsigned long reg_e, reg_d; + + for (i = 0; mr && enum_id && i < desc->hw.nr_mask_regs; i++) { + mr = desc->hw.mask_regs + i; + + /* + * Skip this entry if there's no auto-distribution + * register associated with it. + */ + if (!mr->dist_reg) + continue; + + for (j = 0; j < ARRAY_SIZE(mr->enum_ids); j++) { + if (mr->enum_ids[j] != enum_id) + continue; + + fn = REG_FN_MODIFY_BASE; + mode = MODE_ENABLE_REG; + reg_e = mr->dist_reg; + reg_d = mr->dist_reg; + + fn += (mr->reg_width >> 3) - 1; + return _INTC_MK(fn, mode, + intc_get_reg(d, reg_e), + intc_get_reg(d, reg_d), + 1, + (mr->reg_width - 1) - j); + } + } + + /* + * It's possible we've gotten here with no distribution options + * available for the IRQ in question, so we just skip over those. + */ + return 0; +} +#else +static inline void intc_balancing_enable(unsigned int irq) +{ +} + +static inline void intc_balancing_disable(unsigned int irq) +{ +} +#endif + static inline void _intc_enable(unsigned int irq, unsigned long handle) { struct intc_desc_int *d = get_intc_desc(irq); @@ -244,6 +377,8 @@ static inline void _intc_enable(unsigned int irq, unsigned long handle) intc_enable_fns[_INTC_MODE(handle)](addr, handle, intc_reg_fns\ [_INTC_FN(handle)], irq); } + + intc_balancing_enable(irq); } static void intc_enable(unsigned int irq) @@ -254,10 +389,12 @@ static void intc_enable(unsigned int irq) static void intc_disable(unsigned int irq) { struct intc_desc_int *d = get_intc_desc(irq); - unsigned long handle = (unsigned long) get_irq_chip_data(irq); + unsigned long handle = (unsigned long)get_irq_chip_data(irq); unsigned long addr; unsigned int cpu; + intc_balancing_disable(irq); + for (cpu = 0; cpu < SMP_NR(d, _INTC_ADDR_D(handle)); cpu++) { #ifdef CONFIG_SMP if (!cpumask_test_cpu(cpu, irq_to_desc(irq)->affinity)) @@ -336,8 +473,7 @@ static void intc_mask_ack(unsigned int irq) intc_disable(irq); - /* read register and write zero only to the assocaited bit */ - + /* read register and write zero only to the associated bit */ if (handle) { addr = INTC_REG(d, _INTC_ADDR_D(handle), 0); switch (_INTC_FN(handle)) { @@ -366,7 +502,8 @@ static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp, { int i; - /* this doesn't scale well, but... + /* + * this doesn't scale well, but... * * this function should only be used for cerain uncommon * operations such as intc_set_priority() and intc_set_sense() @@ -377,7 +514,6 @@ static struct intc_handle_int *intc_find_irq(struct intc_handle_int *hp, * memory footprint down is to make sure the array is sorted * and then perform a bisect to lookup the irq. */ - for (i = 0; i < nr_hp; i++) { if ((hp + i)->irq != irq) continue; @@ -408,7 +544,6 @@ int intc_set_priority(unsigned int irq, unsigned int prio) * primary masking method is using intc_prio_level[irq] * priority level will be set during next enable() */ - if (_INTC_FN(ihp->handle) != REG_FN_ERR) _intc_enable(irq, ihp->handle); } @@ -447,20 +582,6 @@ static int intc_set_sense(unsigned int irq, unsigned int type) return 0; } -static unsigned int __init intc_get_reg(struct intc_desc_int *d, - unsigned long address) -{ - unsigned int k; - - for (k = 0; k < d->nr_reg; k++) { - if (d->reg[k] == address) - return k; - } - - BUG(); - return 0; -} - static intc_enum __init intc_grp_id(struct intc_desc *desc, intc_enum enum_id) { @@ -718,13 +839,14 @@ static void __init intc_register_irq(struct intc_desc *desc, */ set_bit(irq, intc_irq_map); - /* Prefer single interrupt source bitmap over other combinations: + /* + * Prefer single interrupt source bitmap over other combinations: + * * 1. bitmap, single interrupt source * 2. priority, single interrupt source * 3. bitmap, multiple interrupt sources (groups) * 4. priority, multiple interrupt sources (groups) */ - data[0] = intc_mask_data(desc, d, enum_id, 0); data[1] = intc_prio_data(desc, d, enum_id, 0); @@ -749,10 +871,11 @@ static void __init intc_register_irq(struct intc_desc *desc, handle_level_irq, "level"); set_irq_chip_data(irq, (void *)data[primary]); - /* set priority level + /* + * set priority level * - this needs to be at least 2 for 5-bit priorities on 7780 */ - intc_prio_level[irq] = 2; + intc_prio_level[irq] = default_prio_level; /* enable secondary masking method if present */ if (data[!primary]) @@ -769,7 +892,6 @@ static void __init intc_register_irq(struct intc_desc *desc, * only secondary priority should access registers, so * set _INTC_FN(h) = REG_FN_ERR for intc_set_priority() */ - hp->handle &= ~_INTC_MK(0x0f, 0, 0, 0, 0, 0); hp->handle |= _INTC_MK(REG_FN_ERR, 0, 0, 0, 0, 0); } @@ -790,6 +912,11 @@ static void __init intc_register_irq(struct intc_desc *desc, if (desc->hw.ack_regs) ack_handle[irq] = intc_ack_data(desc, d, enum_id); +#ifdef CONFIG_INTC_BALANCING + if (desc->hw.mask_regs) + dist_handle[irq] = intc_dist_data(desc, d, enum_id); +#endif + #ifdef CONFIG_ARM set_irq_flags(irq, IRQF_VALID); /* Enable IRQ on ARM systems */ #endif @@ -801,6 +928,8 @@ static unsigned int __init save_reg(struct intc_desc_int *d, unsigned int smp) { if (value) { + value = intc_phys_to_virt(d, value); + d->reg[cnt] = value; #ifdef CONFIG_SMP d->smp[cnt] = smp; @@ -816,25 +945,59 @@ static void intc_redirect_irq(unsigned int irq, struct irq_desc *desc) generic_handle_irq((unsigned int)get_irq_data(irq)); } -void __init register_intc_controller(struct intc_desc *desc) +int __init register_intc_controller(struct intc_desc *desc) { unsigned int i, k, smp; struct intc_hw_desc *hw = &desc->hw; struct intc_desc_int *d; + struct resource *res; + + pr_info("intc: Registered controller '%s' with %u IRQs\n", + desc->name, hw->nr_vectors); d = kzalloc(sizeof(*d), GFP_NOWAIT); + if (!d) + goto err0; INIT_LIST_HEAD(&d->list); list_add(&d->list, &intc_list); + if (desc->num_resources) { + d->nr_windows = desc->num_resources; + d->window = kzalloc(d->nr_windows * sizeof(*d->window), + GFP_NOWAIT); + if (!d->window) + goto err1; + + for (k = 0; k < d->nr_windows; k++) { + res = desc->resource + k; + WARN_ON(resource_type(res) != IORESOURCE_MEM); + d->window[k].phys = res->start; + d->window[k].size = resource_size(res); + d->window[k].virt = ioremap_nocache(res->start, + resource_size(res)); + if (!d->window[k].virt) + goto err2; + } + } + d->nr_reg = hw->mask_regs ? hw->nr_mask_regs * 2 : 0; +#ifdef CONFIG_INTC_BALANCING + if (d->nr_reg) + d->nr_reg += hw->nr_mask_regs; +#endif d->nr_reg += hw->prio_regs ? hw->nr_prio_regs * 2 : 0; d->nr_reg += hw->sense_regs ? hw->nr_sense_regs : 0; d->nr_reg += hw->ack_regs ? hw->nr_ack_regs : 0; d->reg = kzalloc(d->nr_reg * sizeof(*d->reg), GFP_NOWAIT); + if (!d->reg) + goto err2; + #ifdef CONFIG_SMP d->smp = kzalloc(d->nr_reg * sizeof(*d->smp), GFP_NOWAIT); + if (!d->smp) + goto err3; #endif k = 0; @@ -843,12 +1006,17 @@ void __init register_intc_controller(struct intc_desc *desc) smp = IS_SMP(hw->mask_regs[i]); k += save_reg(d, k, hw->mask_regs[i].set_reg, smp); k += save_reg(d, k, hw->mask_regs[i].clr_reg, smp); +#ifdef CONFIG_INTC_BALANCING + k += save_reg(d, k, hw->mask_regs[i].dist_reg, 0); +#endif } } if (hw->prio_regs) { d->prio = kzalloc(hw->nr_vectors * sizeof(*d->prio), GFP_NOWAIT); + if (!d->prio) + goto err4; for (i = 0; i < hw->nr_prio_regs; i++) { smp = IS_SMP(hw->prio_regs[i]); @@ -860,6 +1028,8 @@ void __init register_intc_controller(struct intc_desc *desc) if (hw->sense_regs) { d->sense = kzalloc(hw->nr_vectors * sizeof(*d->sense), GFP_NOWAIT); + if (!d->sense) + goto err5; for (i = 0; i < hw->nr_sense_regs; i++) k += save_reg(d, k, hw->sense_regs[i].reg, 0); @@ -906,7 +1076,7 @@ void __init register_intc_controller(struct intc_desc *desc) irq_desc = irq_to_desc_alloc_node(irq, numa_node_id()); if (unlikely(!irq_desc)) { - pr_info("can't get irq_desc for %d\n", irq); + pr_err("can't get irq_desc for %d\n", irq); continue; } @@ -926,7 +1096,7 @@ void __init register_intc_controller(struct intc_desc *desc) */ irq_desc = irq_to_desc_alloc_node(irq2, numa_node_id()); if (unlikely(!irq_desc)) { - pr_info("can't get irq_desc for %d\n", irq2); + pr_err("can't get irq_desc for %d\n", irq2); continue; } @@ -942,8 +1112,100 @@ void __init register_intc_controller(struct intc_desc *desc) /* enable bits matching force_enable after registering irqs */ if (desc->force_enable) intc_enable_disable_enum(desc, d, desc->force_enable, 1); + + return 0; +err5: + kfree(d->prio); +err4: +#ifdef CONFIG_SMP + kfree(d->smp); +err3: +#endif + kfree(d->reg); +err2: + for (k = 0; k < d->nr_windows; k++) + if (d->window[k].virt) + iounmap(d->window[k].virt); + + kfree(d->window); +err1: + kfree(d); +err0: + pr_err("unable to allocate INTC memory\n"); + + return -ENOMEM; +} + +#ifdef CONFIG_INTC_USERIMASK +static void __iomem *uimask; + +int register_intc_userimask(unsigned long addr) +{ + if (unlikely(uimask)) + return -EBUSY; + + uimask = ioremap_nocache(addr, SZ_4K); + if (unlikely(!uimask)) + return -ENOMEM; + + pr_info("intc: userimask support registered for levels 0 -> %d\n", + default_prio_level - 1); + + return 0; +} + +static ssize_t +show_intc_userimask(struct sysdev_class *cls, + struct sysdev_class_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", (__raw_readl(uimask) >> 4) & 0xf); +} + +static ssize_t +store_intc_userimask(struct sysdev_class *cls, + struct sysdev_class_attribute *attr, + const char *buf, size_t count) +{ + unsigned long level; + + level = simple_strtoul(buf, NULL, 10); + + /* + * Minimal acceptable IRQ levels are in the 2 - 16 range, but + * these are chomped so as to not interfere with normal IRQs. + * + * Level 1 is a special case on some CPUs in that it's not + * directly settable, but given that USERIMASK cuts off below a + * certain level, we don't care about this limitation here. + * Level 0 on the other hand equates to user masking disabled. + * + * We use default_prio_level as a cut off so that only special + * case opt-in IRQs can be mangled. + */ + if (level >= default_prio_level) + return -EINVAL; + + __raw_writel(0xa5 << 24 | level << 4, uimask); + + return count; } +static SYSDEV_CLASS_ATTR(userimask, S_IRUSR | S_IWUSR, + show_intc_userimask, store_intc_userimask); +#endif + +static ssize_t +show_intc_name(struct sys_device *dev, struct sysdev_attribute *attr, char *buf) +{ + struct intc_desc_int *d; + + d = container_of(dev, struct intc_desc_int, sysdev); + + return sprintf(buf, "%s\n", d->chip.name); +} + +static SYSDEV_ATTR(name, S_IRUGO, show_intc_name, NULL); + static int intc_suspend(struct sys_device *dev, pm_message_t state) { struct intc_desc_int *d; @@ -1003,19 +1265,28 @@ static int __init register_intc_sysdevs(void) int id = 0; error = sysdev_class_register(&intc_sysdev_class); +#ifdef CONFIG_INTC_USERIMASK + if (!error && uimask) + error = sysdev_class_create_file(&intc_sysdev_class, + &attr_userimask); +#endif if (!error) { list_for_each_entry(d, &intc_list, list) { d->sysdev.id = id; d->sysdev.cls = &intc_sysdev_class; error = sysdev_register(&d->sysdev); + if (error == 0) + error = sysdev_create_file(&d->sysdev, + &attr_name); if (error) break; + id++; } } if (error) - pr_warning("intc: sysdev registration error\n"); + pr_err("intc: sysdev registration error\n"); return error; } @@ -1048,7 +1319,7 @@ unsigned int create_irq_nr(unsigned int irq_want, int node) desc = irq_to_desc_alloc_node(new, node); if (unlikely(!desc)) { - pr_info("can't get irq_desc for %d\n", new); + pr_err("can't get irq_desc for %d\n", new); goto out_unlock; } diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c index 36828358a4d8..e76b1afafe07 100644 --- a/drivers/spi/pxa2xx_spi.c +++ b/drivers/spi/pxa2xx_spi.c @@ -36,8 +36,7 @@ #include <asm/delay.h> #include <mach/dma.h> -#include <mach/regs-ssp.h> -#include <mach/ssp.h> +#include <plat/ssp.h> #include <mach/pxa2xx_spi.h> MODULE_AUTHOR("Stephen Street"); @@ -1318,14 +1317,14 @@ static int setup(struct spi_device *spi) /* NOTE: PXA25x_SSP _could_ use external clocking ... */ if (drv_data->ssp_type != PXA25x_SSP) dev_dbg(&spi->dev, "%ld Hz actual, %s\n", - clk_get_rate(ssp->clk) - / (1 + ((chip->cr0 & SSCR0_SCR) >> 8)), - chip->enable_dma ? "DMA" : "PIO"); + clk_get_rate(ssp->clk) + / (1 + ((chip->cr0 & SSCR0_SCR(0xfff)) >> 8)), + chip->enable_dma ? "DMA" : "PIO"); else dev_dbg(&spi->dev, "%ld Hz actual, %s\n", - clk_get_rate(ssp->clk) / 2 - / (1 + ((chip->cr0 & SSCR0_SCR) >> 8)), - chip->enable_dma ? "DMA" : "PIO"); + clk_get_rate(ssp->clk) / 2 + / (1 + ((chip->cr0 & SSCR0_SCR(0x0ff)) >> 8)), + chip->enable_dma ? "DMA" : "PIO"); if (spi->bits_per_word <= 8) { chip->n_bytes = 1; @@ -1466,7 +1465,7 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev) platform_info = dev->platform_data; - ssp = ssp_request(pdev->id, pdev->name); + ssp = pxa_ssp_request(pdev->id, pdev->name); if (ssp == NULL) { dev_err(&pdev->dev, "failed to request SSP%d\n", pdev->id); return -ENODEV; @@ -1476,7 +1475,7 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev) master = spi_alloc_master(dev, sizeof(struct driver_data) + 16); if (!master) { dev_err(&pdev->dev, "cannot alloc spi_master\n"); - ssp_free(ssp); + pxa_ssp_free(ssp); return -ENOMEM; } drv_data = spi_master_get_devdata(master); @@ -1558,7 +1557,7 @@ static int __init pxa2xx_spi_probe(struct platform_device *pdev) write_SSCR1(SSCR1_RxTresh(RX_THRESH_DFLT) | SSCR1_TxTresh(TX_THRESH_DFLT), drv_data->ioaddr); - write_SSCR0(SSCR0_SerClkDiv(2) + write_SSCR0(SSCR0_SCR(2) | SSCR0_Motorola | SSCR0_DataSize(8), drv_data->ioaddr); @@ -1605,7 +1604,7 @@ out_error_irq_alloc: out_error_master_alloc: spi_master_put(master); - ssp_free(ssp); + pxa_ssp_free(ssp); return status; } @@ -1649,7 +1648,7 @@ static int pxa2xx_spi_remove(struct platform_device *pdev) free_irq(ssp->irq, drv_data); /* Release SSP */ - ssp_free(ssp); + pxa_ssp_free(ssp); /* Disconnect from the SPI framework */ spi_unregister_master(drv_data->master); diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c index 14d052316502..e324627d97a2 100644 --- a/drivers/spi/spi_mpc8xxx.c +++ b/drivers/spi/spi_mpc8xxx.c @@ -640,7 +640,7 @@ static int mpc8xxx_spi_setup(struct spi_device *spi) } mpc8xxx_spi = spi_master_get_devdata(spi->master); - hw_mode = cs->hw_mode; /* Save orginal settings */ + hw_mode = cs->hw_mode; /* Save original settings */ cs->hw_mode = mpc8xxx_spi_read_reg(&mpc8xxx_spi->base->mode); /* mask out bits we are going to set */ cs->hw_mode &= ~(SPMODE_CP_BEGIN_EDGECLK | SPMODE_CI_INACTIVEHIGH diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index 80ff7d9e60de..bc9bdb277bec 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -490,7 +490,7 @@ static int ssb_devices_register(struct ssb_bus *bus) break; case SSB_BUSTYPE_PCMCIA: #ifdef CONFIG_SSB_PCMCIAHOST - sdev->irq = bus->host_pcmcia->irq.AssignedIRQ; + sdev->irq = bus->host_pcmcia->irq; dev->parent = &bus->host_pcmcia->dev; #endif break; diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c index 5632991760af..30b522c0bf2c 100644 --- a/drivers/staging/comedi/drivers/cb_das16_cs.c +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -180,12 +180,12 @@ static int das16cs_attach(struct comedi_device *dev, } printk("\n"); - ret = request_irq(link->irq.AssignedIRQ, das16cs_interrupt, + ret = request_irq(link->irq, das16cs_interrupt, IRQF_SHARED, "cb_das16_cs", dev); if (ret < 0) { return ret; } - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; printk("irq=%u ", dev->irq); dev->board_ptr = das16cs_probe(dev, link); @@ -671,7 +671,6 @@ static dev_info_t dev_info = "cb_das16_cs"; struct local_info_t { struct pcmcia_device *link; - dev_node_t node; int stop; struct bus_operations *bus; }; @@ -702,10 +701,6 @@ static int das16cs_pcmcia_attach(struct pcmcia_device *link) link->priv = local; /* Initialize the pcmcia_device structure */ - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; @@ -720,10 +715,8 @@ static void das16cs_pcmcia_detach(struct pcmcia_device *link) { dev_dbg(&link->dev, "das16cs_pcmcia_detach\n"); - if (link->dev_node) { - ((struct local_info_t *)link->priv)->stop = 1; - das16cs_pcmcia_release(link); - } + ((struct local_info_t *)link->priv)->stop = 1; + das16cs_pcmcia_release(link); /* This points to the parent struct local_info_t struct */ if (link->priv) kfree(link->priv); @@ -740,8 +733,7 @@ static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev, return -EINVAL; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -769,7 +761,6 @@ static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev, static void das16cs_pcmcia_config(struct pcmcia_device *link) { - struct local_info_t *dev = link->priv; int ret; dev_dbg(&link->dev, "das16cs_pcmcia_config\n"); @@ -780,16 +771,9 @@ static void das16cs_pcmcia_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; + /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping, and putting the @@ -799,19 +783,10 @@ static void das16cs_pcmcia_config(struct pcmcia_device *link) if (ret) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - sprintf(dev->node.dev_name, "cb_das16_cs"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %u", link->irq.AssignedIRQ); + printk(", irq %u", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c index 9164ce158dcd..896d25bc85b5 100644 --- a/drivers/staging/comedi/drivers/das08_cs.c +++ b/drivers/staging/comedi/drivers/das08_cs.c @@ -142,7 +142,6 @@ static const dev_info_t dev_info = "pcm-das08"; struct local_info_t { struct pcmcia_device *link; - dev_node_t node; int stop; struct bus_operations *bus; }; @@ -172,10 +171,6 @@ static int das08_pcmcia_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -207,10 +202,8 @@ static void das08_pcmcia_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "das08_pcmcia_detach\n"); - if (link->dev_node) { - ((struct local_info_t *)link->priv)->stop = 1; - das08_pcmcia_release(link); - } + ((struct local_info_t *)link->priv)->stop = 1; + das08_pcmcia_release(link); /* This points to the parent struct local_info_t struct */ if (link->priv) @@ -229,8 +222,7 @@ static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev, return -ENODEV; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -266,7 +258,6 @@ static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev, static void das08_pcmcia_config(struct pcmcia_device *link) { - struct local_info_t *dev = link->priv; int ret; dev_dbg(&link->dev, "das08_pcmcia_config\n"); @@ -277,11 +268,8 @@ static void das08_pcmcia_config(struct pcmcia_device *link) goto failed; } - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -292,19 +280,10 @@ static void das08_pcmcia_config(struct pcmcia_device *link) if (ret) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - sprintf(dev->node.dev_name, "pcm-das08"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %u", link->irq.AssignedIRQ); + printk(", irq %u", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c index 7ea64538e055..06dd44ff1a95 100644 --- a/drivers/staging/comedi/drivers/ni_daq_700.c +++ b/drivers/staging/comedi/drivers/ni_daq_700.c @@ -380,7 +380,7 @@ static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it) return -EIO; iobase = link->io.BasePort1; #ifdef incomplete - irq = link->irq.AssignedIRQ; + irq = link->irq; #endif break; default: @@ -470,7 +470,6 @@ static const dev_info_t dev_info = "ni_daq_700"; struct local_info_t { struct pcmcia_device *link; - dev_node_t node; int stop; struct bus_operations *bus; }; @@ -502,10 +501,6 @@ static int dio700_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -539,10 +534,8 @@ static void dio700_cs_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "dio700_cs_detach\n"); - if (link->dev_node) { - ((struct local_info_t *)link->priv)->stop = 1; - dio700_release(link); - } + ((struct local_info_t *)link->priv)->stop = 1; + dio700_release(link); /* This points to the parent struct local_info_t struct */ if (link->priv) @@ -577,8 +570,7 @@ static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -625,7 +617,6 @@ static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev, static void dio700_config(struct pcmcia_device *link) { - struct local_info_t *dev = link->priv; win_req_t req; int ret; @@ -639,16 +630,8 @@ static void dio700_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -659,19 +642,10 @@ static void dio700_config(struct pcmcia_device *link) if (ret != 0) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - sprintf(dev->node.dev_name, "ni_daq_700"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c index ddc312b5d20d..7bfe08b01fe9 100644 --- a/drivers/staging/comedi/drivers/ni_daq_dio24.c +++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c @@ -131,7 +131,7 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it) return -EIO; iobase = link->io.BasePort1; #ifdef incomplete - irq = link->irq.AssignedIRQ; + irq = link->irq; #endif break; default: @@ -221,7 +221,6 @@ static const dev_info_t dev_info = "ni_daq_dio24"; struct local_info_t { struct pcmcia_device *link; - dev_node_t node; int stop; struct bus_operations *bus; }; @@ -253,10 +252,6 @@ static int dio24_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -290,10 +285,8 @@ static void dio24_cs_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "dio24_cs_detach\n"); - if (link->dev_node) { - ((struct local_info_t *)link->priv)->stop = 1; - dio24_release(link); - } + ((struct local_info_t *)link->priv)->stop = 1; + dio24_release(link); /* This points to the parent local_info_t struct */ if (link->priv) @@ -328,8 +321,7 @@ static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -376,7 +368,6 @@ static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev, static void dio24_config(struct pcmcia_device *link) { - struct local_info_t *dev = link->priv; int ret; win_req_t req; @@ -390,16 +381,8 @@ static void dio24_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -410,19 +393,10 @@ static void dio24_config(struct pcmcia_device *link) if (ret) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - sprintf(dev->node.dev_name, "ni_daq_dio24"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c index 8ad1055a5cc1..fd8d3e9520a0 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_cs.c +++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c @@ -144,7 +144,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (!link) return -EIO; iobase = link->io.BasePort1; - irq = link->irq.AssignedIRQ; + irq = link->irq; break; default: printk("bug! couldn't determine board type\n"); @@ -199,7 +199,6 @@ static const dev_info_t dev_info = "daqcard-1200"; struct local_info_t { struct pcmcia_device *link; - dev_node_t node; int stop; struct bus_operations *bus; }; @@ -229,10 +228,6 @@ static int labpc_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_FORCED_PULSE; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -269,10 +264,8 @@ static void labpc_cs_detach(struct pcmcia_device *link) the release() function is called, that will trigger a proper detach(). */ - if (link->dev_node) { - ((struct local_info_t *)link->priv)->stop = 1; - labpc_release(link); - } + ((struct local_info_t *)link->priv)->stop = 1; + labpc_release(link); /* This points to the parent local_info_t struct (may be null) */ kfree(link->priv); @@ -306,8 +299,7 @@ static int labpc_pcmcia_config_loop(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -355,7 +347,6 @@ static int labpc_pcmcia_config_loop(struct pcmcia_device *p_dev, static void labpc_config(struct pcmcia_device *link) { - struct local_info_t *dev = link->priv; int ret; win_req_t req; @@ -367,16 +358,8 @@ static void labpc_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -387,19 +370,10 @@ static void labpc_config(struct pcmcia_device *link) if (ret) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - sprintf(dev->node.dev_name, "daqcard-1200"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c index dc4849a40c97..1e8aebae8ae8 100644 --- a/drivers/staging/comedi/drivers/ni_mio_cs.c +++ b/drivers/staging/comedi/drivers/ni_mio_cs.c @@ -262,17 +262,11 @@ static void cs_detach(struct pcmcia_device *); static struct pcmcia_device *cur_dev = NULL; static const dev_info_t dev_info = "ni_mio_cs"; -static dev_node_t dev_node = { - "ni_mio_cs", - COMEDI_MAJOR, 0, - NULL -}; static int cs_attach(struct pcmcia_device *link) { link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; link->io.NumPorts1 = 16; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -292,8 +286,7 @@ static void cs_detach(struct pcmcia_device *link) { DPRINTK("cs_detach(link=%p)\n", link); - if (link->dev_node) - cs_release(link); + cs_release(link); } static int mio_cs_suspend(struct pcmcia_device *link) @@ -344,14 +337,10 @@ static void mio_cs_config(struct pcmcia_device *link) return; } - ret = pcmcia_request_irq(link, &link->irq); - if (ret) { - printk("pcmcia_request_irq() returned error: %i\n", ret); - } + if (!link->irq) + dev_info(&link->dev, "no IRQ available\n"); ret = pcmcia_request_configuration(link, &link->conf); - - link->dev_node = &dev_node; } static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it) @@ -369,7 +358,7 @@ static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->driver = &driver_ni_mio_cs; dev->iobase = link->io.BasePort1; - irq = link->irq.AssignedIRQ; + irq = link->irq; printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ", dev->minor, dev->driver->driver_name, dev->iobase, irq); diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c index 3325f24448b5..1786db2f3378 100644 --- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c +++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c @@ -60,7 +60,6 @@ Devices: [Quatech] DAQP-208 (daqp), DAQP-308 struct local_info_t { struct pcmcia_device *link; - dev_node_t node; int stop; int table_index; char board_name[32]; @@ -1040,10 +1039,6 @@ static int daqp_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = daqp_interrupt; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -1074,10 +1069,8 @@ static void daqp_cs_detach(struct pcmcia_device *link) dev_dbg(&link->dev, "daqp_cs_detach\n"); - if (link->dev_node) { - dev->stop = 1; - daqp_cs_release(link); - } + dev->stop = 1; + daqp_cs_release(link); /* Unlink device structure, and free it */ dev_table[dev->table_index] = NULL; @@ -1105,8 +1098,7 @@ static int daqp_pcmcia_config_loop(struct pcmcia_device *p_dev, return -ENODEV; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -1133,7 +1125,6 @@ static int daqp_pcmcia_config_loop(struct pcmcia_device *p_dev, static void daqp_cs_config(struct pcmcia_device *link) { - struct local_info_t *dev = link->priv; int ret; dev_dbg(&link->dev, "daqp_cs_config\n"); @@ -1144,16 +1135,9 @@ static void daqp_cs_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + ret = pcmcia_request_irq(link, daqp_interrupt); + if (ret) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -1164,23 +1148,10 @@ static void daqp_cs_config(struct pcmcia_device *link) if (ret) goto failed; - /* - At this point, the dev_node_t structure(s) need to be - initialized and arranged in a linked list at link->dev. - */ - /* Comedi's PCMCIA script uses this device name (extracted - * from /var/lib/pcmcia/stab) to pass to comedi_config - */ - /* sprintf(dev->node.dev_name, "daqp%d", dev->table_index); */ - sprintf(dev->node.dev_name, "quatech_daqp_cs"); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - /* Finally, report what we've done */ - printk(KERN_INFO "%s: index 0x%02x", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x", link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %u", link->irq.AssignedIRQ); + printk(", irq %u", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/netwave/netwave_cs.c b/drivers/staging/netwave/netwave_cs.c index 3875a722d12b..f1ee2cbc8407 100644 --- a/drivers/staging/netwave/netwave_cs.c +++ b/drivers/staging/netwave/netwave_cs.c @@ -61,7 +61,6 @@ #include <pcmcia/cistpl.h> #include <pcmcia/cisreg.h> #include <pcmcia/ds.h> -#include <pcmcia/mem_op.h> #include <asm/system.h> #include <asm/io.h> @@ -382,10 +381,6 @@ static int netwave_probe(struct pcmcia_device *link) link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */ link->io.IOAddrLines = 5; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &netwave_interrupt; - /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -732,7 +727,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) { * Now allocate an interrupt line. Note that this does not * actually assign a handler to the interrupt. */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, netwave_interrupt); if (ret) goto failed; @@ -767,7 +762,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) { ramBase = ioremap(req.Base, 0x8000); priv->ramBase = ramBase; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &link->dev); diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c index ed3070edcac1..4fcc4351e73f 100644 --- a/drivers/staging/vt6655/rxtx.c +++ b/drivers/staging/vt6655/rxtx.c @@ -25,19 +25,19 @@ * Date: May 20, 2003 * * Functions: - * s_vGenerateTxParameter - Generate tx dma requried parameter. + * s_vGenerateTxParameter - Generate tx dma required parameter. * vGenerateMACHeader - Translate 802.3 to 802.11 header - * cbGetFragCount - Caculate fragement number count + * cbGetFragCount - Caculate fragment number count * csBeacon_xmit - beacon tx function * csMgmt_xmit - management tx function * s_cbFillTxBufHead - fulfill tx dma buffer header * s_uGetDataDuration - get tx data required duration * s_uFillDataHead- fulfill tx data duration header - * s_uGetRTSCTSDuration- get rtx/cts requried duration + * s_uGetRTSCTSDuration- get rtx/cts required duration * s_uGetRTSCTSRsvTime- get rts/cts reserved time * s_uGetTxRsvTime- get frame reserved time * s_vFillCTSHead- fulfill CTS ctl header - * s_vFillFragParameter- Set fragement ctl parameter. + * s_vFillFragParameter- Set fragment ctl parameter. * s_vFillRTSHead- fulfill RTS ctl header * s_vFillTxKey- fulfill tx encrypt key * s_vSWencryption- Software encrypt header @@ -877,7 +877,7 @@ s_vFillRTSHead ( } // Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account. - // Otherwise, we need to modified codes for them. + // Otherwise, we need to modify codes for them. if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) { if (byFBOption == AUTO_FB_NONE) { PSRTS_g pBuf = (PSRTS_g)pvRTS; @@ -1133,7 +1133,7 @@ s_vFillCTSHead ( * * Parameters: * In: - * pDevice - Pointer to adpater + * pDevice - Pointer to adapter * pTxDataHead - Transmit Data Buffer * pTxBufHead - pTxBufHead * pvRrvTime - pvRrvTime @@ -2252,7 +2252,7 @@ vGenerateFIFOHeader ( * * Parameters: * In: - * pDevice - Pointer to adpater + * pDevice - Pointer to adapter * dwTxBufferAddr - Transmit Buffer * pPacket - Packet from upper layer * cbPacketSize - Transmit Data Length diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index d9fa36c95230..a2ce6fad8ee5 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -25,17 +25,17 @@ * Date: May 20, 2003 * * Functions: - * s_vGenerateTxParameter - Generate tx dma requried parameter. + * s_vGenerateTxParameter - Generate tx dma required parameter. * s_vGenerateMACHeader - Translate 802.3 to 802.11 header * csBeacon_xmit - beacon tx function * csMgmt_xmit - management tx function * s_uGetDataDuration - get tx data required duration * s_uFillDataHead- fulfill tx data duration header - * s_uGetRTSCTSDuration- get rtx/cts requried duration + * s_uGetRTSCTSDuration- get rtx/cts required duration * s_uGetRTSCTSRsvTime- get rts/cts reserved time * s_uGetTxRsvTime- get frame reserved time * s_vFillCTSHead- fulfill CTS ctl header - * s_vFillFragParameter- Set fragement ctl parameter. + * s_vFillFragParameter- Set fragment ctl parameter. * s_vFillRTSHead- fulfill RTS ctl header * s_vFillTxKey- fulfill tx encrypt key * s_vSWencryption- Software encrypt header diff --git a/drivers/staging/wavelan/wavelan_cs.c b/drivers/staging/wavelan/wavelan_cs.c index 04f691d127b4..37fa85517a58 100644 --- a/drivers/staging/wavelan/wavelan_cs.c +++ b/drivers/staging/wavelan/wavelan_cs.c @@ -3850,12 +3850,8 @@ wv_pcmcia_config(struct pcmcia_device * link) if (i != 0) break; - /* - * Now allocate an interrupt line. Note that this does not - * actually assign a handler to the interrupt. - */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) + i = pcmcia_request_interrupt(link, wavelan_interrupt); + if (!i) break; /* @@ -3890,7 +3886,7 @@ wv_pcmcia_config(struct pcmcia_device * link) break; /* Feed device with this info... */ - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; netif_start_queue(dev); @@ -4437,10 +4433,6 @@ wavelan_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 3; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = wavelan_interrupt; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -4487,7 +4479,6 @@ wavelan_probe(struct pcmcia_device *p_dev) ret = wv_hw_config(dev); if (ret) { - dev->irq = 0; pcmcia_disable_device(p_dev); return ret; } diff --git a/drivers/staging/wlags49_h2/wl_cs.c b/drivers/staging/wlags49_h2/wl_cs.c index 9da42e66085e..c9d99d88b786 100644 --- a/drivers/staging/wlags49_h2/wl_cs.c +++ b/drivers/staging/wlags49_h2/wl_cs.c @@ -156,15 +156,12 @@ static int wl_adapter_attach(struct pcmcia_device *link) link->io.NumPorts1 = HCF_NUM_IO_PORTS; link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; link->io.IOAddrLines = 6; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; - link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID; - link->irq.Handler = &wl_isr; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 5; link->conf.Present = PRESENT_OPTION; - link->priv = link->irq.Instance = dev; + link->priv = dev; lp = wl_priv(dev); lp->link = link; @@ -318,11 +315,11 @@ void wl_adapter_insert( struct pcmcia_device *link ) link->conf.Attributes |= CONF_ENABLE_IRQ; CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io)); - CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); + CS_CHECK(RequestIRQ, pcmcia_request_irq(link, wl_isr)); CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &handle_to_dev(link)); diff --git a/drivers/telephony/ixj_pcmcia.c b/drivers/telephony/ixj_pcmcia.c index d442fd35620a..99cb2246ac72 100644 --- a/drivers/telephony/ixj_pcmcia.c +++ b/drivers/telephony/ixj_pcmcia.c @@ -22,7 +22,6 @@ typedef struct ixj_info_t { int ndev; - dev_node_t node; struct ixj *port; } ixj_info_t; @@ -155,8 +154,6 @@ static int ixj_config(struct pcmcia_device * link) j = ixj_pcmcia_probe(link->io.BasePort1, link->io.BasePort1 + 0x10); info->ndev = 1; - info->node.major = PHONE_MAJOR; - link->dev_node = &info->node; ixj_get_serial(link, j); return 0; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index 4a6366a42129..111a01a747fc 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -380,6 +380,7 @@ static int usbfs_rmdir(struct inode *dir, struct dentry *dentry) mutex_lock(&inode->i_mutex); dentry_unhash(dentry); if (usbfs_empty(dentry)) { + dont_mount(dentry); drop_nlink(dentry->d_inode); drop_nlink(dentry->d_inode); dput(dentry); diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c index df1bae9b048e..eaa79c8a9b8c 100644 --- a/drivers/usb/gadget/at91_udc.c +++ b/drivers/usb/gadget/at91_udc.c @@ -366,6 +366,13 @@ rescan: if (is_done) done(ep, req, 0); else if (ep->is_pingpong) { + /* + * One dummy read to delay the code because of a HW glitch: + * CSR returns bad RXCOUNT when read too soon after updating + * RX_DATA_BK flags. + */ + csr = __raw_readl(creg); + bufferspace -= count; buf += count; goto rescan; diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 40a858335035..0cd6c7795d90 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -181,7 +181,7 @@ struct ehci_hcd_omap { void __iomem *ehci_base; /* Regulators for USB PHYs. - * Each PHY can have a seperate regulator. + * Each PHY can have a separate regulator. */ struct regulator *regulator[OMAP3_HS_USB_PORTS]; }; diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 39d253e841f6..58cb73c8420a 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -47,7 +47,6 @@ static const char driver_name[DEV_NAME_LEN] = "sl811_cs"; typedef struct local_info_t { struct pcmcia_device *p_dev; - dev_node_t node; } local_info_t; static void sl811_cs_release(struct pcmcia_device * link); @@ -163,8 +162,7 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev, dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; /* we need an interrupt */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -186,7 +184,6 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev, static int sl811_cs_config(struct pcmcia_device *link) { struct device *parent = &link->dev; - local_info_t *dev = link->priv; int ret; dev_dbg(&link->dev, "sl811_cs_config\n"); @@ -197,31 +194,24 @@ static int sl811_cs_config(struct pcmcia_device *link) /* require an IRQ and two registers */ if (!link->io.NumPorts1 || link->io.NumPorts1 < 2) goto failed; - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } else + + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - sprintf(dev->node.dev_name, driver_name); - dev->node.major = dev->node.minor = 0; - link->dev_node = &dev->node; - - printk(KERN_INFO "%s: index 0x%02x: ", - dev->node.dev_name, link->conf.ConfigIndex); + dev_info(&link->dev, "index 0x%02x: ", + link->conf.ConfigIndex); if (link->conf.Vpp) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); printk("\n"); - if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ) + if (sl811_hc_init(parent, link->io.BasePort1, link->irq) < 0) { failed: printk(KERN_WARNING "sl811_cs_config failed\n"); @@ -241,10 +231,6 @@ static int sl811_cs_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - /* Initialize */ - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = NULL; - link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 112ef7e26f6b..608d61a105f6 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -76,7 +76,7 @@ * xfers-per-ripe, blocks-per-rpipe, rpipes-per-host), at the end * we are going to have to rebuild all this based on an scheduler, * to where we have a list of transactions to do and based on the - * availability of the different requried components (blocks, + * availability of the different required components (blocks, * rpipes, segment slots, etc), we go scheduling them. Painful. */ #include <linux/init.h> diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c index dca48df98444..e5d6b56d4447 100644 --- a/drivers/video/amifb.c +++ b/drivers/video/amifb.c @@ -50,8 +50,9 @@ #include <linux/fb.h> #include <linux/init.h> #include <linux/ioport.h> - +#include <linux/platform_device.h> #include <linux/uaccess.h> + #include <asm/system.h> #include <asm/irq.h> #include <asm/amigahw.h> @@ -1135,7 +1136,7 @@ static int amifb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg * Interface to the low level console driver */ -static void amifb_deinit(void); +static void amifb_deinit(struct platform_device *pdev); /* * Internal routines @@ -2246,7 +2247,7 @@ static inline void chipfree(void) * Initialisation */ -static int __init amifb_init(void) +static int __init amifb_probe(struct platform_device *pdev) { int tag, i, err = 0; u_long chipptr; @@ -2261,16 +2262,6 @@ static int __init amifb_init(void) } amifb_setup(option); #endif - if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(AMI_VIDEO)) - return -ENODEV; - - /* - * We request all registers starting from bplpt[0] - */ - if (!request_mem_region(CUSTOM_PHYSADDR+0xe0, 0x120, - "amifb [Denise/Lisa]")) - return -EBUSY; - custom.dmacon = DMAF_ALL | DMAF_MASTER; switch (amiga_chipset) { @@ -2377,6 +2368,7 @@ default_chipset: fb_info.fbops = &amifb_ops; fb_info.par = ¤tpar; fb_info.flags = FBINFO_DEFAULT; + fb_info.device = &pdev->dev; if (!fb_find_mode(&fb_info.var, &fb_info, mode_option, ami_modedb, NUM_TOTAL_MODES, &ami_modedb[defmode], 4)) { @@ -2451,18 +2443,18 @@ default_chipset: return 0; amifb_error: - amifb_deinit(); + amifb_deinit(pdev); return err; } -static void amifb_deinit(void) +static void amifb_deinit(struct platform_device *pdev) { if (fb_info.cmap.len) fb_dealloc_cmap(&fb_info.cmap); + fb_dealloc_cmap(&fb_info.cmap); chipfree(); if (videomemory) iounmap((void*)videomemory); - release_mem_region(CUSTOM_PHYSADDR+0xe0, 0x120); custom.dmacon = DMAF_ALL | DMAF_MASTER; } @@ -3794,14 +3786,35 @@ static void ami_rebuild_copper(void) } } -static void __exit amifb_exit(void) +static int __exit amifb_remove(struct platform_device *pdev) { unregister_framebuffer(&fb_info); - amifb_deinit(); + amifb_deinit(pdev); amifb_video_off(); + return 0; +} + +static struct platform_driver amifb_driver = { + .remove = __exit_p(amifb_remove), + .driver = { + .name = "amiga-video", + .owner = THIS_MODULE, + }, +}; + +static int __init amifb_init(void) +{ + return platform_driver_probe(&amifb_driver, amifb_probe); } module_init(amifb_init); + +static void __exit amifb_exit(void) +{ + platform_driver_unregister(&amifb_driver); +} + module_exit(amifb_exit); MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:amiga-video"); diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c index 8d8dfda2f868..6df7c54db0a3 100644 --- a/drivers/video/cirrusfb.c +++ b/drivers/video/cirrusfb.c @@ -299,6 +299,7 @@ static const struct zorro_device_id cirrusfb_zorro_table[] = { }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, cirrusfb_zorro_table); static const struct { zorro_id id2; diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c index 5eb61b5adfe8..42fe155aba0e 100644 --- a/drivers/video/cobalt_lcdfb.c +++ b/drivers/video/cobalt_lcdfb.c @@ -123,7 +123,7 @@ static void lcd_clear(struct fb_info *info) lcd_write_control(info, LCD_RESET); } -static struct fb_fix_screeninfo cobalt_lcdfb_fix __initdata = { +static struct fb_fix_screeninfo cobalt_lcdfb_fix __devinitdata = { .id = "cobalt-lcd", .type = FB_TYPE_TEXT, .type_aux = FB_AUX_TEXT_MDA, diff --git a/drivers/video/fm2fb.c b/drivers/video/fm2fb.c index 6c91c61cdb63..1b0feb8e7244 100644 --- a/drivers/video/fm2fb.c +++ b/drivers/video/fm2fb.c @@ -219,6 +219,7 @@ static struct zorro_device_id fm2fb_devices[] __devinitdata = { { ZORRO_PROD_HELFRICH_RAINBOW_II }, { 0 } }; +MODULE_DEVICE_TABLE(zorro, fm2fb_devices); static struct zorro_driver fm2fb_driver = { .name = "fm2fb", diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 24747aef1952..95896f387927 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -655,7 +655,7 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev, /* we use the subsystem vendor/device id as the virtio vendor/device * id. this allows us to use the same PCI vendor/device id for all * virtio devices and to identify the particular virtio driver by - * the subsytem ids */ + * the subsystem ids */ vp_dev->vdev.id.vendor = pci_dev->subsystem_vendor; vp_dev->vdev.id.device = pci_dev->subsystem_device; diff --git a/drivers/vlynq/Kconfig b/drivers/vlynq/Kconfig index a9efb1625321..d874b4f34136 100644 --- a/drivers/vlynq/Kconfig +++ b/drivers/vlynq/Kconfig @@ -1,8 +1,8 @@ menu "TI VLYNQ" + depends on AR7 && EXPERIMENTAL config VLYNQ bool "TI VLYNQ bus support" - depends on AR7 && EXPERIMENTAL help Support for Texas Instruments(R) VLYNQ bus. The VLYNQ bus is a high-speed, serial and packetized diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 0bf5020d0d32..b87ba23442d2 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -175,7 +175,7 @@ config SA1100_WATCHDOG config MPCORE_WATCHDOG tristate "MPcore watchdog" - depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS + depends on HAVE_ARM_TWD help Watchdog timer embedded into the MPcore system. diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c index 016c6a791cab..b8ec7aca3c8e 100644 --- a/drivers/watchdog/mpcore_wdt.c +++ b/drivers/watchdog/mpcore_wdt.c @@ -31,8 +31,9 @@ #include <linux/platform_device.h> #include <linux/uaccess.h> #include <linux/slab.h> +#include <linux/io.h> -#include <asm/hardware/arm_twd.h> +#include <asm/smp_twd.h> struct mpcore_wdt { unsigned long timer_alive; @@ -44,7 +45,7 @@ struct mpcore_wdt { }; static struct platform_device *mpcore_wdt_dev; -extern unsigned int mpcore_timer_rate; +static DEFINE_SPINLOCK(wdt_lock); #define TIMER_MARGIN 60 static int mpcore_margin = TIMER_MARGIN; @@ -94,13 +95,15 @@ static irqreturn_t mpcore_wdt_fire(int irq, void *arg) */ static void mpcore_wdt_keepalive(struct mpcore_wdt *wdt) { - unsigned int count; + unsigned long count; + spin_lock(&wdt_lock); /* Assume prescale is set to 256 */ - count = (mpcore_timer_rate / 256) * mpcore_margin; + count = __raw_readl(wdt->base + TWD_WDOG_COUNTER); + count = (0xFFFFFFFFU - count) * (HZ / 5); + count = (count / 256) * mpcore_margin; /* Reload the counter */ - spin_lock(&wdt_lock); writel(count + wdt->perturb, wdt->base + TWD_WDOG_LOAD); wdt->perturb = wdt->perturb ? 0 : 1; spin_unlock(&wdt_lock); @@ -119,7 +122,6 @@ static void mpcore_wdt_start(struct mpcore_wdt *wdt) { dev_printk(KERN_INFO, wdt->dev, "enabling watchdog.\n"); - spin_lock(&wdt_lock); /* This loads the count register but does NOT start the count yet */ mpcore_wdt_keepalive(wdt); @@ -130,7 +132,6 @@ static void mpcore_wdt_start(struct mpcore_wdt *wdt) /* Enable watchdog - prescale=256, watchdog mode=1, enable=1 */ writel(0x0000FF09, wdt->base + TWD_WDOG_CONTROL); } - spin_unlock(&wdt_lock); } static int mpcore_wdt_set_heartbeat(int t) @@ -360,7 +361,7 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev) mpcore_wdt_miscdev.parent = &dev->dev; ret = misc_register(&mpcore_wdt_miscdev); if (ret) { - dev_printk(KERN_ERR, _dev, + dev_printk(KERN_ERR, wdt->dev, "cannot register miscdev on minor=%d (err=%d)\n", WATCHDOG_MINOR, ret); goto err_misc; @@ -369,13 +370,13 @@ static int __devinit mpcore_wdt_probe(struct platform_device *dev) ret = request_irq(wdt->irq, mpcore_wdt_fire, IRQF_DISABLED, "mpcore_wdt", wdt); if (ret) { - dev_printk(KERN_ERR, _dev, + dev_printk(KERN_ERR, wdt->dev, "cannot register IRQ%d for watchdog\n", wdt->irq); goto err_irq; } mpcore_wdt_stop(wdt); - platform_set_drvdata(&dev->dev, wdt); + platform_set_drvdata(dev, wdt); mpcore_wdt_dev = dev; return 0; diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c index 2ac4440e7b08..8943b8ccee1a 100644 --- a/drivers/xen/manage.c +++ b/drivers/xen/manage.c @@ -80,12 +80,6 @@ static void do_suspend(void) shutting_down = SHUTDOWN_SUSPEND; - err = stop_machine_create(); - if (err) { - printk(KERN_ERR "xen suspend: failed to setup stop_machine %d\n", err); - goto out; - } - #ifdef CONFIG_PREEMPT /* If the kernel is preemptible, we need to freeze all the processes to prevent them from being in the middle of a pagetable update @@ -93,7 +87,7 @@ static void do_suspend(void) err = freeze_processes(); if (err) { printk(KERN_ERR "xen suspend: freeze failed %d\n", err); - goto out_destroy_sm; + goto out; } #endif @@ -136,12 +130,8 @@ out_resume: out_thaw: #ifdef CONFIG_PREEMPT thaw_processes(); - -out_destroy_sm: -#endif - stop_machine_destroy(); - out: +#endif shutting_down = SHUTDOWN_INVALID; } #endif /* CONFIG_PM_SLEEP */ diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c index d47c47fc048f..3c7046d79654 100644 --- a/drivers/zorro/proc.c +++ b/drivers/zorro/proc.c @@ -97,7 +97,7 @@ static void zorro_seq_stop(struct seq_file *m, void *v) static int zorro_seq_show(struct seq_file *m, void *v) { - u_int slot = *(loff_t *)v; + unsigned int slot = *(loff_t *)v; struct zorro_dev *z = &zorro_autocon[slot]; seq_printf(m, "%02x\t%08x\t%08lx\t%08lx\t%02x\n", slot, z->id, @@ -129,7 +129,7 @@ static const struct file_operations zorro_devices_proc_fops = { static struct proc_dir_entry *proc_bus_zorro_dir; -static int __init zorro_proc_attach_device(u_int slot) +static int __init zorro_proc_attach_device(unsigned int slot) { struct proc_dir_entry *entry; char name[4]; @@ -146,7 +146,7 @@ static int __init zorro_proc_attach_device(u_int slot) static int __init zorro_proc_init(void) { - u_int slot; + unsigned int slot; if (MACH_IS_AMIGA && AMIGAHW_PRESENT(ZORRO)) { proc_bus_zorro_dir = proc_mkdir("bus/zorro", NULL); diff --git a/drivers/zorro/zorro-driver.c b/drivers/zorro/zorro-driver.c index 53180a37cc9a..7ee2b6e71786 100644 --- a/drivers/zorro/zorro-driver.c +++ b/drivers/zorro/zorro-driver.c @@ -137,10 +137,34 @@ static int zorro_bus_match(struct device *dev, struct device_driver *drv) return 0; } +static int zorro_uevent(struct device *dev, struct kobj_uevent_env *env) +{ +#ifdef CONFIG_HOTPLUG + struct zorro_dev *z; + + if (!dev) + return -ENODEV; + + z = to_zorro_dev(dev); + if (!z) + return -ENODEV; + + if (add_uevent_var(env, "ZORRO_ID=%08X", z->id) || + add_uevent_var(env, "ZORRO_SLOT_NAME=%s", dev_name(dev)) || + add_uevent_var(env, "ZORRO_SLOT_ADDR=%04X", z->slotaddr) || + add_uevent_var(env, "MODALIAS=" ZORRO_DEVICE_MODALIAS_FMT, z->id)) + return -ENOMEM; + + return 0; +#else /* !CONFIG_HOTPLUG */ + return -ENODEV; +#endif /* !CONFIG_HOTPLUG */ +} struct bus_type zorro_bus_type = { .name = "zorro", .match = zorro_bus_match, + .uevent = zorro_uevent, .probe = zorro_device_probe, .remove = zorro_device_remove, }; diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c index 1d2a772ea14c..eb924e0a64ce 100644 --- a/drivers/zorro/zorro-sysfs.c +++ b/drivers/zorro/zorro-sysfs.c @@ -77,6 +77,16 @@ static struct bin_attribute zorro_config_attr = { .read = zorro_read_config, }; +static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct zorro_dev *z = to_zorro_dev(dev); + + return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id); +} + +static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL); + int zorro_create_sysfs_dev_files(struct zorro_dev *z) { struct device *dev = &z->dev; @@ -89,6 +99,7 @@ int zorro_create_sysfs_dev_files(struct zorro_dev *z) (error = device_create_file(dev, &dev_attr_slotaddr)) || (error = device_create_file(dev, &dev_attr_slotsize)) || (error = device_create_file(dev, &dev_attr_resource)) || + (error = device_create_file(dev, &dev_attr_modalias)) || (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr))) return error; diff --git a/drivers/zorro/zorro.c b/drivers/zorro/zorro.c index d45fb34e2d23..6455f3a244c5 100644 --- a/drivers/zorro/zorro.c +++ b/drivers/zorro/zorro.c @@ -15,6 +15,8 @@ #include <linux/zorro.h> #include <linux/bitops.h> #include <linux/string.h> +#include <linux/platform_device.h> +#include <linux/slab.h> #include <asm/setup.h> #include <asm/amigahw.h> @@ -26,24 +28,17 @@ * Zorro Expansion Devices */ -u_int zorro_num_autocon = 0; +unsigned int zorro_num_autocon; struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO]; /* - * Single Zorro bus + * Zorro bus */ -struct zorro_bus zorro_bus = {\ - .resources = { - /* Zorro II regions (on Zorro II/III) */ - { .name = "Zorro II exp", .start = 0x00e80000, .end = 0x00efffff }, - { .name = "Zorro II mem", .start = 0x00200000, .end = 0x009fffff }, - /* Zorro III regions (on Zorro III only) */ - { .name = "Zorro III exp", .start = 0xff000000, .end = 0xffffffff }, - { .name = "Zorro III cfg", .start = 0x40000000, .end = 0x7fffffff } - }, - .name = "Zorro bus" +struct zorro_bus { + struct list_head devices; /* list of devices on this bus */ + struct device dev; }; @@ -53,18 +48,19 @@ struct zorro_bus zorro_bus = {\ struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from) { - struct zorro_dev *z; + struct zorro_dev *z; - if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO)) - return NULL; + if (!zorro_num_autocon) + return NULL; - for (z = from ? from+1 : &zorro_autocon[0]; - z < zorro_autocon+zorro_num_autocon; - z++) - if (id == ZORRO_WILDCARD || id == z->id) - return z; - return NULL; + for (z = from ? from+1 : &zorro_autocon[0]; + z < zorro_autocon+zorro_num_autocon; + z++) + if (id == ZORRO_WILDCARD || id == z->id) + return z; + return NULL; } +EXPORT_SYMBOL(zorro_find_device); /* @@ -83,121 +79,138 @@ struct zorro_dev *zorro_find_device(zorro_id id, struct zorro_dev *from) */ DECLARE_BITMAP(zorro_unused_z2ram, 128); +EXPORT_SYMBOL(zorro_unused_z2ram); static void __init mark_region(unsigned long start, unsigned long end, int flag) { - if (flag) - start += Z2RAM_CHUNKMASK; - else - end += Z2RAM_CHUNKMASK; - start &= ~Z2RAM_CHUNKMASK; - end &= ~Z2RAM_CHUNKMASK; - - if (end <= Z2RAM_START || start >= Z2RAM_END) - return; - start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START; - end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START; - while (start < end) { - u32 chunk = start>>Z2RAM_CHUNKSHIFT; if (flag) - set_bit(chunk, zorro_unused_z2ram); + start += Z2RAM_CHUNKMASK; else - clear_bit(chunk, zorro_unused_z2ram); - start += Z2RAM_CHUNKSIZE; - } + end += Z2RAM_CHUNKMASK; + start &= ~Z2RAM_CHUNKMASK; + end &= ~Z2RAM_CHUNKMASK; + + if (end <= Z2RAM_START || start >= Z2RAM_END) + return; + start = start < Z2RAM_START ? 0x00000000 : start-Z2RAM_START; + end = end > Z2RAM_END ? Z2RAM_SIZE : end-Z2RAM_START; + while (start < end) { + u32 chunk = start>>Z2RAM_CHUNKSHIFT; + if (flag) + set_bit(chunk, zorro_unused_z2ram); + else + clear_bit(chunk, zorro_unused_z2ram); + start += Z2RAM_CHUNKSIZE; + } } -static struct resource __init *zorro_find_parent_resource(struct zorro_dev *z) +static struct resource __init *zorro_find_parent_resource( + struct platform_device *bridge, struct zorro_dev *z) { - int i; + int i; - for (i = 0; i < zorro_bus.num_resources; i++) - if (zorro_resource_start(z) >= zorro_bus.resources[i].start && - zorro_resource_end(z) <= zorro_bus.resources[i].end) - return &zorro_bus.resources[i]; - return &iomem_resource; + for (i = 0; i < bridge->num_resources; i++) { + struct resource *r = &bridge->resource[i]; + if (zorro_resource_start(z) >= r->start && + zorro_resource_end(z) <= r->end) + return r; + } + return &iomem_resource; } - /* - * Initialization - */ -static int __init zorro_init(void) +static int __init amiga_zorro_probe(struct platform_device *pdev) { - struct zorro_dev *z; - unsigned int i; - int error; - - if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(ZORRO)) - return 0; - - pr_info("Zorro: Probing AutoConfig expansion devices: %d device%s\n", - zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); - - /* Initialize the Zorro bus */ - INIT_LIST_HEAD(&zorro_bus.devices); - dev_set_name(&zorro_bus.dev, "zorro"); - error = device_register(&zorro_bus.dev); - if (error) { - pr_err("Zorro: Error registering zorro_bus\n"); - return error; - } - - /* Request the resources */ - zorro_bus.num_resources = AMIGAHW_PRESENT(ZORRO3) ? 4 : 2; - for (i = 0; i < zorro_bus.num_resources; i++) - request_resource(&iomem_resource, &zorro_bus.resources[i]); - - /* Register all devices */ - for (i = 0; i < zorro_num_autocon; i++) { - z = &zorro_autocon[i]; - z->id = (z->rom.er_Manufacturer<<16) | (z->rom.er_Product<<8); - if (z->id == ZORRO_PROD_GVP_EPC_BASE) { - /* GVP quirk */ - unsigned long magic = zorro_resource_start(z)+0x8000; - z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK; - } - sprintf(z->name, "Zorro device %08x", z->id); - zorro_name_device(z); - z->resource.name = z->name; - if (request_resource(zorro_find_parent_resource(z), &z->resource)) - pr_err("Zorro: Address space collision on device %s %pR\n", - z->name, &z->resource); - dev_set_name(&z->dev, "%02x", i); - z->dev.parent = &zorro_bus.dev; - z->dev.bus = &zorro_bus_type; - error = device_register(&z->dev); + struct zorro_bus *bus; + struct zorro_dev *z; + struct resource *r; + unsigned int i; + int error; + + /* Initialize the Zorro bus */ + bus = kzalloc(sizeof(*bus), GFP_KERNEL); + if (!bus) + return -ENOMEM; + + INIT_LIST_HEAD(&bus->devices); + bus->dev.parent = &pdev->dev; + dev_set_name(&bus->dev, "zorro"); + error = device_register(&bus->dev); if (error) { - pr_err("Zorro: Error registering device %s\n", z->name); - continue; + pr_err("Zorro: Error registering zorro_bus\n"); + kfree(bus); + return error; } - error = zorro_create_sysfs_dev_files(z); - if (error) - dev_err(&z->dev, "Error creating sysfs files\n"); - } - - /* Mark all available Zorro II memory */ - zorro_for_each_dev(z) { - if (z->rom.er_Type & ERTF_MEMLIST) - mark_region(zorro_resource_start(z), zorro_resource_end(z)+1, 1); - } - - /* Unmark all used Zorro II memory */ - for (i = 0; i < m68k_num_memory; i++) - if (m68k_memory[i].addr < 16*1024*1024) - mark_region(m68k_memory[i].addr, - m68k_memory[i].addr+m68k_memory[i].size, 0); - - return 0; + platform_set_drvdata(pdev, bus); + + /* Register all devices */ + pr_info("Zorro: Probing AutoConfig expansion devices: %u device%s\n", + zorro_num_autocon, zorro_num_autocon == 1 ? "" : "s"); + + for (i = 0; i < zorro_num_autocon; i++) { + z = &zorro_autocon[i]; + z->id = (z->rom.er_Manufacturer<<16) | (z->rom.er_Product<<8); + if (z->id == ZORRO_PROD_GVP_EPC_BASE) { + /* GVP quirk */ + unsigned long magic = zorro_resource_start(z)+0x8000; + z->id |= *(u16 *)ZTWO_VADDR(magic) & GVP_PRODMASK; + } + sprintf(z->name, "Zorro device %08x", z->id); + zorro_name_device(z); + z->resource.name = z->name; + r = zorro_find_parent_resource(pdev, z); + error = request_resource(r, &z->resource); + if (error) + dev_err(&bus->dev, + "Address space collision on device %s %pR\n", + z->name, &z->resource); + dev_set_name(&z->dev, "%02x", i); + z->dev.parent = &bus->dev; + z->dev.bus = &zorro_bus_type; + error = device_register(&z->dev); + if (error) { + dev_err(&bus->dev, "Error registering device %s\n", + z->name); + continue; + } + error = zorro_create_sysfs_dev_files(z); + if (error) + dev_err(&z->dev, "Error creating sysfs files\n"); + } + + /* Mark all available Zorro II memory */ + zorro_for_each_dev(z) { + if (z->rom.er_Type & ERTF_MEMLIST) + mark_region(zorro_resource_start(z), + zorro_resource_end(z)+1, 1); + } + + /* Unmark all used Zorro II memory */ + for (i = 0; i < m68k_num_memory; i++) + if (m68k_memory[i].addr < 16*1024*1024) + mark_region(m68k_memory[i].addr, + m68k_memory[i].addr+m68k_memory[i].size, + 0); + + return 0; } -subsys_initcall(zorro_init); +static struct platform_driver amiga_zorro_driver = { + .driver = { + .name = "amiga-zorro", + .owner = THIS_MODULE, + }, +}; -EXPORT_SYMBOL(zorro_find_device); -EXPORT_SYMBOL(zorro_unused_z2ram); +static int __init amiga_zorro_init(void) +{ + return platform_driver_probe(&amiga_zorro_driver, amiga_zorro_probe); +} + +module_init(amiga_zorro_init); MODULE_LICENSE("GPL"); |