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scsi: hisi_sas: add TMF success check 

When a tmf is issued, various response codes can be returned from the
target. For a query tmf the response may be TMF_RESP_FUNC_COMPLETE or
TMF_RESP_FUNC_SUCC.  Add a condition for TMF_RESP_FUNC_SUCC to
hisi_sas_exec_internal_tmf_task().  This affects query tmf, as the
result is success the returned value was for failure.

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
John Garry 2016-08-24 19:05:53 +08:00 committed by Martin K. Petersen
parent 9859f24e9a
commit 4ffde48221
1 changed files with 6 additions and 0 deletions
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6
drivers/scsi/hisi_sas/hisi_sas_main.c
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@ -743,6 +743,12 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
break;
}
if (task->task_status.resp == SAS_TASK_COMPLETE &&
task->task_status.stat == TMF_RESP_FUNC_SUCC) {
res = TMF_RESP_FUNC_SUCC;
break;
}
if (task->task_status.resp == SAS_TASK_COMPLETE &&
task->task_status.stat == SAS_DATA_UNDERRUN) {
/* no error, but return the number of bytes of