From ce14379350645189dbe6c618169ce4a2fab6aeb1 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Fri, 31 Jul 2020 16:01:11 -0500 Subject: scsi: smartpqi: Identify physical devices without issuing INQUIRY Eliminate issuing INQUIRYs to problematic devices by using information provided by controller. Link: https://lore.kernel.org/r/159622927172.30579.3960527536810532094.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Martin Wilck Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 1 + drivers/scsi/smartpqi/smartpqi_init.c | 173 +++++++++++++++++----------------- 2 files changed, 87 insertions(+), 87 deletions(-) (limited to 'drivers/scsi/smartpqi') diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index 1129fe7a27ed..48ca2ee06972 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -1255,6 +1255,7 @@ struct bmic_sense_subsystem_info { #define SA_DEVICE_TYPE_SATA 0x1 #define SA_DEVICE_TYPE_SAS 0x2 #define SA_DEVICE_TYPE_EXPANDER_SMP 0x5 +#define SA_DEVICE_TYPE_SES 0x6 #define SA_DEVICE_TYPE_CONTROLLER 0x7 #define SA_DEVICE_TYPE_NVME 0x9 diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index bd38c8cea56e..f4dc8c857ec9 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1300,33 +1300,59 @@ no_buffer: device->volume_offline = volume_offline; } -#define PQI_INQUIRY_PAGE0_RETRIES 3 +static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info, + struct pqi_scsi_dev *device, + struct bmic_identify_physical_device *id_phys) +{ + int rc; -static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, + memset(id_phys, 0, sizeof(*id_phys)); + + rc = pqi_identify_physical_device(ctrl_info, device, + id_phys, sizeof(*id_phys)); + if (rc) { + device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; + return rc; + } + + scsi_sanitize_inquiry_string(&id_phys->model[0], 8); + scsi_sanitize_inquiry_string(&id_phys->model[8], 16); + + memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor)); + memcpy(device->model, &id_phys->model[8], sizeof(device->model)); + + device->box_index = id_phys->box_index; + device->phys_box_on_bus = id_phys->phys_box_on_bus; + device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; + device->queue_depth = + get_unaligned_le16(&id_phys->current_queue_depth_limit); + device->active_path_index = id_phys->active_path_number; + device->path_map = id_phys->redundant_path_present_map; + memcpy(&device->box, + &id_phys->alternate_paths_phys_box_on_port, + sizeof(device->box)); + memcpy(&device->phys_connector, + &id_phys->alternate_paths_phys_connector, + sizeof(device->phys_connector)); + device->bay = id_phys->phys_bay_in_box; + + return 0; +} + +static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device) { int rc; u8 *buffer; - unsigned int retries; - - if (device->is_expander_smp_device) - return 0; buffer = kmalloc(64, GFP_KERNEL); if (!buffer) return -ENOMEM; /* Send an inquiry to the device to see what it is. */ - for (retries = 0;;) { - rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, - buffer, 64); - if (rc == 0) - break; - if (pqi_is_logical_device(device) || - rc != PQI_CMD_STATUS_ABORTED || - ++retries > PQI_INQUIRY_PAGE0_RETRIES) - goto out; - } + rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); + if (rc) + goto out; scsi_sanitize_inquiry_string(&buffer[8], 8); scsi_sanitize_inquiry_string(&buffer[16], 16); @@ -1335,7 +1361,7 @@ static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); memcpy(device->model, &buffer[16], sizeof(device->model)); - if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) { + if (device->devtype == TYPE_DISK) { if (device->is_external_raid_device) { device->raid_level = SA_RAID_UNKNOWN; device->volume_status = CISS_LV_OK; @@ -1353,36 +1379,21 @@ out: return rc; } -static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info, +static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, struct bmic_identify_physical_device *id_phys) { int rc; - memset(id_phys, 0, sizeof(*id_phys)); + if (device->is_expander_smp_device) + return 0; - rc = pqi_identify_physical_device(ctrl_info, device, - id_phys, sizeof(*id_phys)); - if (rc) { - device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; - return; - } + if (pqi_is_logical_device(device)) + rc = pqi_get_logical_device_info(ctrl_info, device); + else + rc = pqi_get_physical_device_info(ctrl_info, device, id_phys); - device->box_index = id_phys->box_index; - device->phys_box_on_bus = id_phys->phys_box_on_bus; - device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; - device->queue_depth = - get_unaligned_le16(&id_phys->current_queue_depth_limit); - device->device_type = id_phys->device_type; - device->active_path_index = id_phys->active_path_number; - device->path_map = id_phys->redundant_path_present_map; - memcpy(&device->box, - &id_phys->alternate_paths_phys_box_on_port, - sizeof(device->box)); - memcpy(&device->phys_connector, - &id_phys->alternate_paths_phys_connector, - sizeof(device->phys_connector)); - device->bay = id_phys->phys_bay_in_box; + return rc; } static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, @@ -1872,9 +1883,10 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, /* Expose any new devices. */ list_for_each_entry_safe(device, next, &add_list, add_list_entry) { if (!pqi_is_device_added(device)) { - pqi_dev_info(ctrl_info, "added", device); rc = pqi_add_device(ctrl_info, device); - if (rc) { + if (rc == 0) { + pqi_dev_info(ctrl_info, "added", device); + } else { dev_warn(&ctrl_info->pci_dev->dev, "scsi %d:%d:%d:%d addition failed, device not added\n", ctrl_info->scsi_host->host_no, @@ -1886,36 +1898,19 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, } } -static bool pqi_is_supported_device(struct pqi_scsi_dev *device) +static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device) { - bool is_supported; - - if (device->is_expander_smp_device) - return true; - - is_supported = false; - - switch (device->devtype) { - case TYPE_DISK: - case TYPE_ZBC: - case TYPE_TAPE: - case TYPE_MEDIUM_CHANGER: - case TYPE_ENCLOSURE: - is_supported = true; - break; - case TYPE_RAID: - /* - * Only support the HBA controller itself as a RAID - * controller. If it's a RAID controller other than - * the HBA itself (an external RAID controller, for - * example), we don't support it. - */ - if (pqi_is_hba_lunid(device->scsi3addr)) - is_supported = true; - break; - } + /* + * Only support the HBA controller itself as a RAID + * controller. If it's a RAID controller other than + * the HBA itself (an external RAID controller, for + * example), we don't support it. + */ + if (device->device_type == SA_DEVICE_TYPE_CONTROLLER && + !pqi_is_hba_lunid(device->scsi3addr)) + return false; - return is_supported; + return true; } static inline bool pqi_skip_device(u8 *scsi3addr) @@ -1934,16 +1929,10 @@ static inline void pqi_mask_device(u8 *scsi3addr) static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device) { - if (!device->is_physical_device) - return false; - - if (device->is_expander_smp_device) - return true; - - switch (device->devtype) { - case TYPE_DISK: - case TYPE_ZBC: - case TYPE_ENCLOSURE: + switch (device->device_type) { + case SA_DEVICE_TYPE_SAS: + case SA_DEVICE_TYPE_EXPANDER_SMP: + case SA_DEVICE_TYPE_SES: return true; } @@ -2085,16 +2074,19 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); device->is_physical_device = is_physical_device; if (is_physical_device) { - if (phys_lun_ext_entry->device_type == - SA_DEVICE_TYPE_EXPANDER_SMP) + device->device_type = phys_lun_ext_entry->device_type; + if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP) device->is_expander_smp_device = true; } else { device->is_external_raid_device = pqi_is_external_raid_addr(scsi3addr); } + if (!pqi_is_supported_device(device)) + continue; + /* Gather information about the device. */ - rc = pqi_get_device_info(ctrl_info, device); + rc = pqi_get_device_info(ctrl_info, device, id_phys); if (rc == -ENOMEM) { dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); @@ -2115,9 +2107,6 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) continue; } - if (!pqi_is_supported_device(device)) - continue; - pqi_assign_bus_target_lun(device); if (device->is_physical_device) { @@ -2129,7 +2118,6 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) device->aio_handle = phys_lun_ext_entry->aio_handle; } - pqi_get_physical_disk_info(ctrl_info, device, id_phys); } else { memcpy(device->volume_id, log_lun_ext_entry->volume_id, sizeof(device->volume_id)); @@ -5831,6 +5819,16 @@ static int pqi_map_queues(struct Scsi_Host *shost) ctrl_info->pci_dev, 0); } +static int pqi_slave_configure(struct scsi_device *sdev) +{ + struct pqi_scsi_dev *device; + + device = sdev->hostdata; + device->devtype = sdev->type; + + return 0; +} + static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) { @@ -6501,6 +6499,7 @@ static struct scsi_host_template pqi_driver_template = { .eh_device_reset_handler = pqi_eh_device_reset_handler, .ioctl = pqi_ioctl, .slave_alloc = pqi_slave_alloc, + .slave_configure = pqi_slave_configure, .map_queues = pqi_map_queues, .sdev_attrs = pqi_sdev_attrs, .shost_attrs = pqi_shost_attrs, -- cgit v1.2.3