scsi: vmw_pvscsi: Return DID_RESET for status SAM_STAT_COMMAND_TERMINATED

Commands that are reset are returned with status
SAM_STAT_COMMAND_TERMINATED. PVSCSI currently returns DID_OK |
SAM_STAT_COMMAND_TERMINATED which fails the command. Instead, set hostbyte
to DID_RESET to allow upper layers to retry.

Tested by copying a large file between two pvscsi disks on same adapter
while performing a bus reset at 1-second intervals. Before fix, commands
sometimes fail with DID_OK. After fix, commands observed to fail with
DID_RESET.

Signed-off-by: Jim Gill <jgill@vmware.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 777e5f1e52d1..0cd947f78b5b 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -561,9 +561,14 @@ static void pvscsi_complete_request(struct pvscsi_adapter *adapter,
             (btstat == BTSTAT_SUCCESS ||
              btstat == BTSTAT_LINKED_COMMAND_COMPLETED ||
              btstat == BTSTAT_LINKED_COMMAND_COMPLETED_WITH_FLAG)) {
-                cmd->result = (DID_OK << 16) | sdstat;
-                if (sdstat == SAM_STAT_CHECK_CONDITION && cmd->sense_buffer)
-                        cmd->result |= (DRIVER_SENSE << 24);
+                if (sdstat == SAM_STAT_COMMAND_TERMINATED) {
+                        cmd->result = (DID_RESET << 16);
+                } else {
+                        cmd->result = (DID_OK << 16) | sdstat;
+                        if (sdstat == SAM_STAT_CHECK_CONDITION &&
+                            cmd->sense_buffer)
+                                cmd->result |= (DRIVER_SENSE << 24);
+                }
         } else
                 switch (btstat) {
                 case BTSTAT_SUCCESS: