From a4bc3379fbc368597024104727fdf14ced483c14 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 2 Dec 2006 13:34:16 -0500 Subject: [SCSI] lpfc 8.1.11 : Fix lpfc_multi_ring_support It was not accounted for in the fast/slow rings. Genericize the implementation and control it via sysfs Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/scsi/lpfc/lpfc.h') diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 3f7f5f8abd75..e94190e83fc3 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -296,6 +296,8 @@ struct lpfc_hba { uint32_t cfg_cr_delay; uint32_t cfg_cr_count; uint32_t cfg_multi_ring_support; + uint32_t cfg_multi_ring_rctl; + uint32_t cfg_multi_ring_type; uint32_t cfg_fdmi_on; uint32_t cfg_discovery_threads; uint32_t cfg_max_luns; -- cgit v1.2.3 From 4ff43246e45943200ae3233732adf8708c2faef6 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 2 Dec 2006 13:34:56 -0500 Subject: [SCSI] lpfc 8.1.11 : Add MSI (Message Signalled Interrupts) support Add MSI (Message Signalled Interrupts) support Actual use must be enabled via the new module parameter "lpfc_use_msi" Defaults to no use Many thanks to Frederic Temporelli who implemented the initial patch. Signed-off-by: Frederic Temporelli Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_attr.c | 11 +++++++++++ drivers/scsi/lpfc/lpfc_init.c | 10 ++++++++++ 3 files changed, 22 insertions(+) (limited to 'drivers/scsi/lpfc/lpfc.h') diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index e94190e83fc3..1ec9cf0e374a 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -303,6 +303,7 @@ struct lpfc_hba { uint32_t cfg_max_luns; uint32_t cfg_poll; uint32_t cfg_poll_tmo; + uint32_t cfg_use_msi; uint32_t cfg_sg_seg_cnt; uint32_t cfg_sg_dma_buf_size; uint64_t cfg_soft_wwpn; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 73d3afc72de2..e2ac7ba3d8ad 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -961,6 +961,15 @@ LPFC_ATTR_R(max_luns, 255, 0, 65535, LPFC_ATTR_RW(poll_tmo, 10, 1, 255, "Milliseconds driver will wait between polling FCP ring"); +/* +# lpfc_use_msi: Use MSI (Message Signaled Interrupts) in systems that +# support this feature +# 0 = MSI disabled (default) +# 1 = MSI enabled +# Value range is [0,1]. Default value is 0. +*/ +LPFC_ATTR_R(use_msi, 0, 0, 1, "Use Message Signaled Interrupts, if possible"); + struct class_device_attribute *lpfc_host_attrs[] = { &class_device_attr_info, @@ -999,6 +1008,7 @@ struct class_device_attribute *lpfc_host_attrs[] = { &class_device_attr_issue_reset, &class_device_attr_lpfc_poll, &class_device_attr_lpfc_poll_tmo, + &class_device_attr_lpfc_use_msi, &class_device_attr_lpfc_soft_wwpn, &class_device_attr_lpfc_soft_wwpn_enable, NULL, @@ -1801,6 +1811,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) lpfc_discovery_threads_init(phba, lpfc_discovery_threads); lpfc_max_luns_init(phba, lpfc_max_luns); lpfc_poll_tmo_init(phba, lpfc_poll_tmo); + lpfc_use_msi_init(phba, lpfc_use_msi); lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo); lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo); phba->cfg_poll = lpfc_poll; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 6b0718573ac5..71ee0cd32216 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -1653,6 +1653,14 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid) if (error) goto out_remove_host; + if (phba->cfg_use_msi) { + error = pci_enable_msi(phba->pcidev); + if (error) + lpfc_printf_log(phba, KERN_INFO, LOG_INIT, "%d:0452 " + "Enable MSI failed, continuing with " + "IRQ\n", phba->brd_no); + } + error = request_irq(phba->pcidev->irq, lpfc_intr_handler, IRQF_SHARED, LPFC_DRIVER_NAME, phba); if (error) { @@ -1732,6 +1740,7 @@ out_free_irq: lpfc_stop_timer(phba); phba->work_hba_events = 0; free_irq(phba->pcidev->irq, phba); + pci_disable_msi(phba->pcidev); out_free_sysfs_attr: lpfc_free_sysfs_attr(phba); out_remove_host: @@ -1798,6 +1807,7 @@ lpfc_pci_remove_one(struct pci_dev *pdev) /* Release the irq reservation */ free_irq(phba->pcidev->irq, phba); + pci_disable_msi(phba->pcidev); lpfc_cleanup(phba, 0); lpfc_stop_timer(phba); -- cgit v1.2.3 From a12e07bc6297b6cb97889ca7dfbed6c39048b1c1 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 2 Dec 2006 13:35:30 -0500 Subject: [SCSI] lpfc 8.1.11 : Add soft_wwnn sysfs attribute, rename soft_wwn_enable The driver now allows both wwpn and wwnn to be set. Signed-off-by: James Smart Signed-off-by: James Bottomley --- drivers/scsi/lpfc/lpfc.h | 3 +- drivers/scsi/lpfc/lpfc_attr.c | 84 +++++++++++++++++++++++++++++++++++----- drivers/scsi/lpfc/lpfc_hbadisc.c | 2 + drivers/scsi/lpfc/lpfc_init.c | 2 + 4 files changed, 80 insertions(+), 11 deletions(-) (limited to 'drivers/scsi/lpfc/lpfc.h') diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 1ec9cf0e374a..a7de0bca5bdd 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -306,6 +306,7 @@ struct lpfc_hba { uint32_t cfg_use_msi; uint32_t cfg_sg_seg_cnt; uint32_t cfg_sg_dma_buf_size; + uint64_t cfg_soft_wwnn; uint64_t cfg_soft_wwpn; uint32_t dev_loss_tmo_changed; @@ -358,7 +359,7 @@ struct lpfc_hba { #define VPD_PORT 0x8 /* valid vpd port data */ #define VPD_MASK 0xf /* mask for any vpd data */ - uint8_t soft_wwpn_enable; + uint8_t soft_wwn_enable; struct timer_list fcp_poll_timer; struct timer_list els_tmofunc; diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index e2ac7ba3d8ad..f247e786af99 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -552,10 +552,10 @@ static CLASS_DEVICE_ATTR(board_mode, S_IRUGO | S_IWUSR, static CLASS_DEVICE_ATTR(issue_reset, S_IWUSR, NULL, lpfc_issue_reset); -static char *lpfc_soft_wwpn_key = "C99G71SL8032A"; +static char *lpfc_soft_wwn_key = "C99G71SL8032A"; static ssize_t -lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf, +lpfc_soft_wwn_enable_store(struct class_device *cdev, const char *buf, size_t count) { struct Scsi_Host *host = class_to_shost(cdev); @@ -579,15 +579,15 @@ lpfc_soft_wwpn_enable_store(struct class_device *cdev, const char *buf, if (buf[cnt-1] == '\n') cnt--; - if ((cnt != strlen(lpfc_soft_wwpn_key)) || - (strncmp(buf, lpfc_soft_wwpn_key, strlen(lpfc_soft_wwpn_key)) != 0)) + if ((cnt != strlen(lpfc_soft_wwn_key)) || + (strncmp(buf, lpfc_soft_wwn_key, strlen(lpfc_soft_wwn_key)) != 0)) return -EINVAL; - phba->soft_wwpn_enable = 1; + phba->soft_wwn_enable = 1; return count; } -static CLASS_DEVICE_ATTR(lpfc_soft_wwpn_enable, S_IWUSR, NULL, - lpfc_soft_wwpn_enable_store); +static CLASS_DEVICE_ATTR(lpfc_soft_wwn_enable, S_IWUSR, NULL, + lpfc_soft_wwn_enable_store); static ssize_t lpfc_soft_wwpn_show(struct class_device *cdev, char *buf) @@ -613,12 +613,12 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count) if (buf[cnt-1] == '\n') cnt--; - if (!phba->soft_wwpn_enable || (cnt < 16) || (cnt > 18) || + if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) || ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) return -EINVAL; - phba->soft_wwpn_enable = 0; + phba->soft_wwn_enable = 0; memset(wwpn, 0, sizeof(wwpn)); @@ -639,6 +639,8 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count) } phba->cfg_soft_wwpn = wwn_to_u64(wwpn); fc_host_port_name(host) = phba->cfg_soft_wwpn; + if (phba->cfg_soft_wwnn) + fc_host_node_name(host) = phba->cfg_soft_wwnn; dev_printk(KERN_NOTICE, &phba->pcidev->dev, "lpfc%d: Reinitializing to use soft_wwpn\n", phba->brd_no); @@ -664,6 +666,66 @@ lpfc_soft_wwpn_store(struct class_device *cdev, const char *buf, size_t count) static CLASS_DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\ lpfc_soft_wwpn_show, lpfc_soft_wwpn_store); +static ssize_t +lpfc_soft_wwnn_show(struct class_device *cdev, char *buf) +{ + struct Scsi_Host *host = class_to_shost(cdev); + struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata; + return snprintf(buf, PAGE_SIZE, "0x%llx\n", + (unsigned long long)phba->cfg_soft_wwnn); +} + + +static ssize_t +lpfc_soft_wwnn_store(struct class_device *cdev, const char *buf, size_t count) +{ + struct Scsi_Host *host = class_to_shost(cdev); + struct lpfc_hba *phba = (struct lpfc_hba*)host->hostdata; + unsigned int i, j, cnt=count; + u8 wwnn[8]; + + /* count may include a LF at end of string */ + if (buf[cnt-1] == '\n') + cnt--; + + if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) || + ((cnt == 17) && (*buf++ != 'x')) || + ((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x')))) + return -EINVAL; + + /* + * Allow wwnn to be set many times, as long as the enable is set. + * However, once the wwpn is set, everything locks. + */ + + memset(wwnn, 0, sizeof(wwnn)); + + /* Validate and store the new name */ + for (i=0, j=0; i < 16; i++) { + if ((*buf >= 'a') && (*buf <= 'f')) + j = ((j << 4) | ((*buf++ -'a') + 10)); + else if ((*buf >= 'A') && (*buf <= 'F')) + j = ((j << 4) | ((*buf++ -'A') + 10)); + else if ((*buf >= '0') && (*buf <= '9')) + j = ((j << 4) | (*buf++ -'0')); + else + return -EINVAL; + if (i % 2) { + wwnn[i/2] = j & 0xff; + j = 0; + } + } + phba->cfg_soft_wwnn = wwn_to_u64(wwnn); + + dev_printk(KERN_NOTICE, &phba->pcidev->dev, + "lpfc%d: soft_wwnn set. Value will take effect upon " + "setting of the soft_wwpn\n", phba->brd_no); + + return count; +} +static CLASS_DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\ + lpfc_soft_wwnn_show, lpfc_soft_wwnn_store); + static int lpfc_poll = 0; module_param(lpfc_poll, int, 0); @@ -1009,8 +1071,9 @@ struct class_device_attribute *lpfc_host_attrs[] = { &class_device_attr_lpfc_poll, &class_device_attr_lpfc_poll_tmo, &class_device_attr_lpfc_use_msi, + &class_device_attr_lpfc_soft_wwnn, &class_device_attr_lpfc_soft_wwpn, - &class_device_attr_lpfc_soft_wwpn_enable, + &class_device_attr_lpfc_soft_wwn_enable, NULL, }; @@ -1815,6 +1878,7 @@ lpfc_get_cfgparam(struct lpfc_hba *phba) lpfc_devloss_tmo_init(phba, lpfc_devloss_tmo); lpfc_nodev_tmo_init(phba, lpfc_nodev_tmo); phba->cfg_poll = lpfc_poll; + phba->cfg_soft_wwnn = 0L; phba->cfg_soft_wwpn = 0L; /* diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 1118b6d49fcc..c39564e85e94 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -672,6 +672,8 @@ lpfc_mbx_cmpl_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) memcpy((uint8_t *) & phba->fc_sparam, (uint8_t *) mp->virt, sizeof (struct serv_parm)); + if (phba->cfg_soft_wwnn) + u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn); if (phba->cfg_soft_wwpn) u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn); memcpy((uint8_t *) & phba->fc_nodename, diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index b872519e2ced..cf9081c262d7 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -268,6 +268,8 @@ lpfc_config_port_post(struct lpfc_hba * phba) kfree(mp); pmb->context1 = NULL; + if (phba->cfg_soft_wwnn) + u64_to_wwn(phba->cfg_soft_wwnn, phba->fc_sparam.nodeName.u.wwn); if (phba->cfg_soft_wwpn) u64_to_wwn(phba->cfg_soft_wwpn, phba->fc_sparam.portName.u.wwn); memcpy(&phba->fc_nodename, &phba->fc_sparam.nodeName, -- cgit v1.2.3