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scsi: smartpqi: make ioaccel references consistent 

- make all references to RAID bypass consistent throughout driver.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kevin Barnett 2017-05-03 18:55:25 -05:00 committed by Martin K. Petersen
parent 6de783f666
commit 588a63fea1
2 changed files with 30 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/scsi/smartpqi/smartpqi.h
View File

@ -805,12 +805,11 @@ struct pqi_scsi_dev {
u8 bay;
u8 box[8];
u16 phys_connector[8];
int offload_configured; /* I/O accel RAID offload configured */
int offload_enabled; /* I/O accel RAID offload enabled */
int offload_enabled_pending;
int offload_to_mirror; /* Send next I/O accelerator RAID */
/* offload request to mirror drive. */
struct raid_map *raid_map; /* I/O accelerator RAID map */
bool raid_bypass_configured; /* RAID bypass configured */
bool raid_bypass_enabled; /* RAID bypass enabled */
int offload_to_mirror; /* Send next RAID bypass request */
/* to mirror drive. */
struct raid_map *raid_map; /* RAID bypass map */
struct pqi_sas_port *sas_port;
struct scsi_device *sdev;
@ -827,7 +826,7 @@ struct pqi_scsi_dev {
#define SCSI_VPD_SUPPORTED_PAGES 0x0 /* standard page */
#define SCSI_VPD_DEVICE_ID 0x83 /* standard page */
#define CISS_VPD_LV_DEVICE_GEOMETRY 0xc1 /* vendor-specific page */
#define CISS_VPD_LV_OFFLOAD_STATUS 0xc2 /* vendor-specific page */
#define CISS_VPD_LV_BYPASS_STATUS 0xc2 /* vendor-specific page */
#define CISS_VPD_LV_STATUS 0xc3 /* vendor-specific page */
#define VPD_PAGE (1 << 8)

56
drivers/scsi/smartpqi/smartpqi_init.c
View File

@ -1112,35 +1112,33 @@ static int pqi_get_raid_map(struct pqi_ctrl_info *ctrl_info,
return rc;
}
static void pqi_get_offload_status(struct pqi_ctrl_info *ctrl_info,
static void pqi_get_raid_bypass_status(struct pqi_ctrl_info *ctrl_info,
struct pqi_scsi_dev *device)
{
int rc;
u8 *buffer;
u8 offload_status;
u8 bypass_status;
buffer = kmalloc(64, GFP_KERNEL);
if (!buffer)
return;
rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr,
VPD_PAGE | CISS_VPD_LV_OFFLOAD_STATUS, buffer, 64);
VPD_PAGE | CISS_VPD_LV_BYPASS_STATUS, buffer, 64);
if (rc)
goto out;
#define OFFLOAD_STATUS_BYTE 4
#define OFFLOAD_CONFIGURED_BIT 0x1
#define OFFLOAD_ENABLED_BIT 0x2
#define RAID_BYPASS_STATUS 4
#define RAID_BYPASS_CONFIGURED 0x1
#define RAID_BYPASS_ENABLED 0x2
offload_status = buffer[OFFLOAD_STATUS_BYTE];
device->offload_configured =
!!(offload_status & OFFLOAD_CONFIGURED_BIT);
if (device->offload_configured) {
device->offload_enabled_pending =
!!(offload_status & OFFLOAD_ENABLED_BIT);
if (pqi_get_raid_map(ctrl_info, device))
device->offload_enabled_pending = false;
}
bypass_status = buffer[RAID_BYPASS_STATUS];
device->raid_bypass_configured =
(bypass_status & RAID_BYPASS_CONFIGURED) != 0;
if (device->raid_bypass_configured &&
(bypass_status & RAID_BYPASS_ENABLED) &&
pqi_get_raid_map(ctrl_info, device) == 0)
device->raid_bypass_enabled = true;
out:
kfree(buffer);
@ -1214,7 +1212,7 @@ static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info,
device->volume_offline = false;
} else {
pqi_get_raid_level(ctrl_info, device);
pqi_get_offload_status(ctrl_info, device);
pqi_get_raid_bypass_status(ctrl_info, device);
pqi_get_volume_status(ctrl_info, device);
}
}
@ -1492,9 +1490,8 @@ static void pqi_dev_info(struct pqi_ctrl_info *ctrl_info,
count += snprintf(buffer + count,
PQI_DEV_INFO_BUFFER_LENGTH - count,
"SSDSmartPathCap%c En%c %-12s",
device->offload_configured ? '+' : '-',
(device->offload_enabled ||
device->offload_enabled_pending) ? '+' : '-',
device->raid_bypass_configured ? '+' : '-',
device->raid_bypass_enabled ? '+' : '-',
pqi_raid_level_to_string(device->raid_level));
} else {
count += snprintf(buffer + count,
@ -1546,13 +1543,13 @@ static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device,
sizeof(existing_device->box));
memcpy(existing_device->phys_connector, new_device->phys_connector,
sizeof(existing_device->phys_connector));
existing_device->offload_configured = new_device->offload_configured;
existing_device->offload_enabled = false;
existing_device->offload_enabled_pending =
new_device->offload_enabled_pending;
existing_device->offload_to_mirror = 0;
kfree(existing_device->raid_map);
existing_device->raid_map = new_device->raid_map;
existing_device->raid_bypass_configured =
new_device->raid_bypass_configured;
existing_device->raid_bypass_enabled =
new_device->raid_bypass_enabled;
/* To prevent this from being freed later. */
new_device->raid_map = NULL;
@ -1670,11 +1667,6 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info,
device->keep_device = true;
}
list_for_each_entry(device, &ctrl_info->scsi_device_list,
scsi_device_list_entry)
device->offload_enabled =
device->offload_enabled_pending;
spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags);
/* Remove all devices that have gone away. */
@ -2044,7 +2036,7 @@ static inline void pqi_set_encryption_info(
}
/*
* Attempt to perform offload RAID mapping for a logical volume I/O.
* Attempt to perform RAID bypass mapping for a logical volume I/O.
*/
#define PQI_RAID_BYPASS_INELIGIBLE 1
@ -2448,7 +2440,7 @@ static inline void pqi_aio_path_disabled(struct pqi_io_request *io_request)
struct pqi_scsi_dev *device;
device = io_request->scmd->device->hostdata;
device->offload_enabled = false;
device->raid_bypass_enabled = false;
device->aio_enabled = false;
}
@ -5002,7 +4994,7 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost,
if (pqi_is_logical_device(device)) {
raid_bypassed = false;
if (device->offload_enabled &&
if (device->raid_bypass_enabled &&
!blk_rq_is_passthrough(scmd->request)) {
rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device,
scmd, queue_group);
@ -5753,7 +5745,7 @@ static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev,
spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags);
device = sdev->hostdata;
buffer[0] = device->offload_enabled ? '1' : '0';
buffer[0] = device->raid_bypass_enabled ? '1' : '0';
buffer[1] = '\n';
buffer[2] = '\0';