diff options
| author | John Garry <john.garry@huawei.com> | 2016-02-25 09:42:12 (GMT) |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-03-01 02:00:03 (GMT) |
| commit | 91b2bb92fe3aec35c7557d523b272410bc05e179 (patch) | |
| tree | 261566a50d342b38ec2722ed1390a73c73cdfad2 | |
| parent | cac9b2a21789b7354b0e616892c7d193e8167277 (diff) | |
| download | linux-91b2bb92fe3aec35c7557d523b272410bc05e179.tar.xz | |
hisi_sas: use slot abort in v1 hw
When TRANS_TX_CREDIT_TIMEOUT_ERR or
TRANS_TX_CLOSE_NORMAL_ERR error occur in
a slot, the command should be re-attempted.
This error is equivalent to meaning that the queue
is full in the sdev (and not the host).
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>
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index ce5f65d..1abbc2e 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -1212,6 +1212,14 @@ static void slot_err_v1_hw(struct hisi_hba *hisi_hba, ts->stat = SAS_NAK_R_ERR; break; } + case TRANS_TX_CREDIT_TIMEOUT_ERR: + case TRANS_TX_CLOSE_NORMAL_ERR: + { + /* This will request a retry */ + ts->stat = SAS_QUEUE_FULL; + slot->abort = 1; + break; + } default: { ts->stat = SAM_STAT_CHECK_CONDITION; @@ -1319,6 +1327,11 @@ static int slot_complete_v1_hw(struct hisi_hba *hisi_hba, !(cmplt_hdr_data & CMPLT_HDR_RSPNS_XFRD_MSK)) { slot_err_v1_hw(hisi_hba, task, slot); + if (unlikely(slot->abort)) { + queue_work(hisi_hba->wq, &slot->abort_slot); + /* immediately return and do not complete */ + return ts->stat; + } goto out; } |