scsi: hpsa: update check for logical volume status

 - Add in a new case for volume offline. Resolves internal testing bug
   for multilun array management.
 - Return correct status for failed TURs.

Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 524a0c7..90b76c4 100644 (file)
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -3714,7 +3714,7 @@ exit_failed:
  *  # (integer code indicating one of several NOT READY states
  *     describing why a volume is to be kept offline)
  */
-static int hpsa_volume_offline(struct ctlr_info *h,
+static unsigned char hpsa_volume_offline(struct ctlr_info *h,
                                        unsigned char scsi3addr[])
 {
        struct CommandList *c;
@@ -3735,7 +3735,7 @@ static int hpsa_volume_offline(struct ctlr_info *h,
                                        DEFAULT_TIMEOUT);
        if (rc) {
                cmd_free(h, c);
-               return 0;
+               return HPSA_VPD_LV_STATUS_UNSUPPORTED;
        }
        sense = c->err_info->SenseInfo;
        if (c->err_info->SenseLen > sizeof(c->err_info->SenseInfo))
@@ -3746,19 +3746,13 @@ static int hpsa_volume_offline(struct ctlr_info *h,
        cmd_status = c->err_info->CommandStatus;
        scsi_status = c->err_info->ScsiStatus;
        cmd_free(h, c);
-       /* Is the volume 'not ready'? */
-       if (cmd_status != CMD_TARGET_STATUS ||
-               scsi_status != SAM_STAT_CHECK_CONDITION ||
-               sense_key != NOT_READY ||
-               asc != ASC_LUN_NOT_READY)  {
-               return 0;
-       }
 
        /* Determine the reason for not ready state */
        ldstat = hpsa_get_volume_status(h, scsi3addr);
 
        /* Keep volume offline in certain cases: */
        switch (ldstat) {
+       case HPSA_LV_FAILED:
        case HPSA_LV_UNDERGOING_ERASE:
        case HPSA_LV_NOT_AVAILABLE:
        case HPSA_LV_UNDERGOING_RPI:
@@ -3780,7 +3774,7 @@ static int hpsa_volume_offline(struct ctlr_info *h,
        default:
                break;
        }
-       return 0;
+       return HPSA_LV_OK;
 }
 
 /*
@@ -3853,10 +3847,10 @@ static int hpsa_update_device_info(struct ctlr_info *h,
        /* Do an inquiry to the device to see what it is. */
        if (hpsa_scsi_do_inquiry(h, scsi3addr, 0, inq_buff,
                (unsigned char) OBDR_TAPE_INQ_SIZE) != 0) {
-               /* Inquiry failed (msg printed already) */
                dev_err(&h->pdev->dev,
-                       "hpsa_update_device_info: inquiry failed\n");
-               rc = -EIO;
+                       "%s: inquiry failed, device will be skipped.\n",
+                       __func__);
+               rc = HPSA_INQUIRY_FAILED;
                goto bail_out;
        }
 
@@ -3885,15 +3879,19 @@ static int hpsa_update_device_info(struct ctlr_info *h,
        if ((this_device->devtype == TYPE_DISK ||
                this_device->devtype == TYPE_ZBC) &&
                is_logical_dev_addr_mode(scsi3addr)) {
-               int volume_offline;
+               unsigned char volume_offline;
 
                hpsa_get_raid_level(h, scsi3addr, &this_device->raid_level);
                if (h->fw_support & MISC_FW_RAID_OFFLOAD_BASIC)
                        hpsa_get_ioaccel_status(h, scsi3addr, this_device);
                volume_offline = hpsa_volume_offline(h, scsi3addr);
-               if (volume_offline < 0 || volume_offline > 0xff)
-                       volume_offline = HPSA_VPD_LV_STATUS_UNSUPPORTED;
-               this_device->volume_offline = volume_offline & 0xff;
+               if (volume_offline == HPSA_LV_FAILED) {
+                       rc = HPSA_LV_FAILED;
+                       dev_err(&h->pdev->dev,
+                               "%s: LV failed, device will be skipped.\n",
+                               __func__);
+                       goto bail_out;
+               }
        } else {
                this_device->raid_level = RAID_UNKNOWN;
                this_device->offload_config = 0;
@@ -4379,8 +4377,7 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
                        goto out;
                }
                if (rc) {
-                       dev_warn(&h->pdev->dev,
-                               "Inquiry failed, skipping device.\n");
+                       h->drv_req_rescan = 1;
                        continue;
                }
 

diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h
index a584cdf..5961705 100644 (file)
--- a/drivers/scsi/hpsa_cmd.h
+++ b/drivers/scsi/hpsa_cmd.h
@@ -156,6 +156,7 @@
 #define CFGTBL_BusType_Fibre2G  0x00000200l
 
 /* VPD Inquiry types */
+#define HPSA_INQUIRY_FAILED            0x02
 #define HPSA_VPD_SUPPORTED_PAGES        0x00
 #define HPSA_VPD_LV_DEVICE_ID           0x83
 #define HPSA_VPD_LV_DEVICE_GEOMETRY     0xC1
@@ -166,6 +167,7 @@
 /* Logical volume states */
 #define HPSA_VPD_LV_STATUS_UNSUPPORTED                 0xff
 #define HPSA_LV_OK                                      0x0
+#define HPSA_LV_FAILED                                 0x01
 #define HPSA_LV_NOT_AVAILABLE                          0x0b
 #define HPSA_LV_UNDERGOING_ERASE                       0x0F
 #define HPSA_LV_UNDERGOING_RPI                         0x12