From mboxrd@z Thu Jan 1 00:00:00 1970 From: Don Brace Subject: [PATCH 23/37] smartpqi: remove qdepth calculations for logical volumes Date: Tue, 25 Apr 2017 14:48:13 -0500 Message-ID: <149314969291.13903.16333142456414971848.stgit@brunhilda> References: <149314950730.13903.644081079070695025.stgit@brunhilda> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-by2nam03on0058.outbound.protection.outlook.com ([104.47.42.58]:63808 "EHLO NAM03-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1176582AbdDYTsn (ORCPT ); Tue, 25 Apr 2017 15:48:43 -0400 In-Reply-To: <149314950730.13903.644081079070695025.stgit@brunhilda> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: joseph.szczypek@hpe.com, gerry.morong@microsemi.com, john.hall@microsemi.com, jejb@linux.vnet.ibm.com, Kevin.Barnett@microsemi.com, Mahesh.Rajashekhara@microsemi.com, bader.alisaleh@microsemi.com, hch@infradead.org, scott.teel@microsemi.com, Viswas.G@microsemi.com, Justin.Lindley@microsemi.com, scott.benesh@microsemi.com, POSWALD@suse.com Cc: linux-scsi@vger.kernel.org From: Kevin Barnett make the queue depth for LVs the same as the maximum I/Os supported by the controller Reviewed-by: Scott Benesh Signed-off-by: Kevin Barnett Signed-off-by: Don Brace --- drivers/scsi/smartpqi/smartpqi.h | 6 - drivers/scsi/smartpqi/smartpqi_init.c | 140 ++------------------------------- 2 files changed, 8 insertions(+), 138 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index 400d1fb..857d1be 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -726,7 +726,6 @@ struct report_phys_lun_extended_entry { }; /* for device_flags field of struct report_phys_lun_extended_entry */ -#define REPORT_PHYS_LUN_DEV_FLAG_NON_DISK 0x1 #define REPORT_PHYS_LUN_DEV_FLAG_AIO_ENABLED 0x8 struct report_phys_lun_extended { @@ -786,8 +785,6 @@ struct pqi_scsi_dev { u8 is_physical_device : 1; u8 is_external_raid_device : 1; u8 target_lun_valid : 1; - u8 expose_device : 1; - u8 no_uld_attach : 1; u8 aio_enabled : 1; /* only valid for physical disks */ u8 device_gone : 1; u8 new_device : 1; @@ -1034,9 +1031,6 @@ enum pqi_ctrl_mode { */ #define PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH 27 -/* 0 = no limit */ -#define PQI_LOGICAL_DRIVE_DEFAULT_MAX_QUEUE_DEPTH 0 - /* CISS commands */ #define CISS_READ 0xc0 #define CISS_REPORT_LOG 0xc2 /* Report Logical LUNs */ diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 6235b6d..2b667b5 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1308,87 +1308,6 @@ static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, device->bus, device->target, device->lun, status); } -static struct pqi_scsi_dev *pqi_find_disk_by_aio_handle( - struct pqi_ctrl_info *ctrl_info, u32 aio_handle) -{ - struct pqi_scsi_dev *device; - - list_for_each_entry(device, &ctrl_info->scsi_device_list, - scsi_device_list_entry) { - if (device->devtype != TYPE_DISK && device->devtype != TYPE_ZBC) - continue; - if (pqi_is_logical_device(device)) - continue; - if (device->aio_handle == aio_handle) - return device; - } - - return NULL; -} - -static void pqi_update_logical_drive_queue_depth( - struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *logical_drive) -{ - unsigned int i; - struct raid_map *raid_map; - struct raid_map_disk_data *disk_data; - struct pqi_scsi_dev *phys_disk; - unsigned int num_phys_disks; - unsigned int num_raid_map_entries; - unsigned int queue_depth; - - logical_drive->queue_depth = PQI_LOGICAL_DRIVE_DEFAULT_MAX_QUEUE_DEPTH; - - raid_map = logical_drive->raid_map; - if (!raid_map) - return; - - disk_data = raid_map->disk_data; - num_phys_disks = get_unaligned_le16(&raid_map->layout_map_count) * - (get_unaligned_le16(&raid_map->data_disks_per_row) + - get_unaligned_le16(&raid_map->metadata_disks_per_row)); - num_raid_map_entries = num_phys_disks * - get_unaligned_le16(&raid_map->row_cnt); - - queue_depth = 0; - for (i = 0; i < num_raid_map_entries; i++) { - phys_disk = pqi_find_disk_by_aio_handle(ctrl_info, - disk_data[i].aio_handle); - - if (!phys_disk) { - dev_warn(&ctrl_info->pci_dev->dev, - "failed to find physical disk for logical drive %016llx\n", - get_unaligned_be64(logical_drive->scsi3addr)); - logical_drive->offload_enabled = false; - logical_drive->offload_enabled_pending = false; - kfree(raid_map); - logical_drive->raid_map = NULL; - return; - } - - queue_depth += phys_disk->queue_depth; - } - - logical_drive->queue_depth = queue_depth; -} - -static void pqi_update_all_logical_drive_queue_depths( - struct pqi_ctrl_info *ctrl_info) -{ - struct pqi_scsi_dev *device; - - list_for_each_entry(device, &ctrl_info->scsi_device_list, - scsi_device_list_entry) { - if (device->devtype != TYPE_DISK && device->devtype != TYPE_ZBC) - continue; - if (!pqi_is_logical_device(device)) - continue; - if (pqi_is_external_raid_device(device)) - continue; - pqi_update_logical_drive_queue_depth(ctrl_info, device); - } -} - static void pqi_rescan_worker(struct work_struct *work) { struct pqi_ctrl_info *ctrl_info; @@ -1484,7 +1403,7 @@ static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, char *action, struct pqi_scsi_dev *device) { dev_info(&ctrl_info->pci_dev->dev, - "%s scsi %d:%d:%d:%d: %s %.8s %.16s %-12s SSDSmartPathCap%c En%c Exp%c qd=%d\n", + "%s scsi %d:%d:%d:%d: %s %.8s %.16s %-12s SSDSmartPathCap%c En%c qd=%d\n", action, ctrl_info->scsi_host->host_no, device->bus, @@ -1497,7 +1416,6 @@ static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info, pqi_raid_level_to_string(device->raid_level) : "", device->offload_configured ? '+' : '-', device->offload_enabled_pending ? '+' : '-', - device->expose_device ? '+' : '-', device->queue_depth); } @@ -1520,8 +1438,6 @@ static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device, existing_device->is_physical_device = new_device->is_physical_device; existing_device->is_external_raid_device = new_device->is_external_raid_device; - existing_device->expose_device = new_device->expose_device; - existing_device->no_uld_attach = new_device->no_uld_attach; existing_device->aio_enabled = new_device->aio_enabled; memcpy(existing_device->vendor, new_device->vendor, sizeof(existing_device->vendor)); @@ -1663,8 +1579,6 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, device->keep_device = true; } - pqi_update_all_logical_drive_queue_depths(ctrl_info); - list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) device->offload_enabled = @@ -1703,7 +1617,7 @@ 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 (device->expose_device && !device->sdev) { + if (!device->sdev) { rc = pqi_add_device(ctrl_info, device); if (rc) { dev_warn(&ctrl_info->pci_dev->dev, @@ -1746,38 +1660,15 @@ static bool pqi_is_supported_device(struct pqi_scsi_dev *device) return is_supported; } -static inline bool pqi_skip_device(u8 *scsi3addr, - struct report_phys_lun_extended_entry *phys_lun_ext_entry) +static inline bool pqi_skip_device(u8 *scsi3addr) { - u8 device_flags; - - if (!MASKED_DEVICE(scsi3addr)) - return false; - - /* The device is masked. */ - - device_flags = phys_lun_ext_entry->device_flags; - - if (device_flags & REPORT_PHYS_LUN_DEV_FLAG_NON_DISK) { - /* - * It's a non-disk device. We ignore all devices of this type - * when they're masked. - */ + /* Ignore all masked devices. */ + if (MASKED_DEVICE(scsi3addr)) return true; - } return false; } -static inline bool pqi_ok_to_expose_device(struct pqi_scsi_dev *device) -{ - /* Expose all devices except for physical devices that are masked. */ - if (device->is_physical_device && MASKED_DEVICE(device->scsi3addr)) - return false; - - return true; -} - static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) { int i; @@ -1876,8 +1767,7 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) scsi3addr = log_lun_ext_entry->lunid; } - if (is_physical_device && - pqi_skip_device(scsi3addr, phys_lun_ext_entry)) + if (is_physical_device && pqi_skip_device(scsi3addr)) continue; if (device) @@ -1912,8 +1802,6 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) pqi_assign_bus_target_lun(device); - device->expose_device = pqi_ok_to_expose_device(device); - if (device->is_physical_device) { device->wwid = phys_lun_ext_entry->wwid; if ((phys_lun_ext_entry->device_flags & @@ -4847,7 +4735,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, rc == SCSI_MLQUEUE_HOST_BUSY || rc == SAM_STAT_CHECK_CONDITION || rc == SAM_STAT_RESERVATION_CONFLICT) - raid_bypassed = true; + raid_bypassed = true; } if (!raid_bypassed) rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, @@ -5173,7 +5061,7 @@ static int pqi_slave_alloc(struct scsi_device *sdev) sdev_id(sdev), sdev->lun); } - if (device && device->expose_device) { + if (device) { sdev->hostdata = device; device->sdev = sdev; if (device->queue_depth) { @@ -5188,17 +5076,6 @@ static int pqi_slave_alloc(struct scsi_device *sdev) return 0; } -static int pqi_slave_configure(struct scsi_device *sdev) -{ - struct pqi_scsi_dev *device; - - device = sdev->hostdata; - if (!device->expose_device) - sdev->no_uld_attach = true; - - return 0; -} - static int pqi_map_queues(struct Scsi_Host *shost) { struct pqi_ctrl_info *ctrl_info = shost_to_hba(shost); @@ -5592,7 +5469,6 @@ 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,