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scsi: hisi_sas: Handle NCQ error when IPTT is valid 

If an NCQ error occurs when the IPTT is valid and slot->abort flag is set
in completion path, sas_task_abort() will be called to abort only one NCQ
command now, and the host would be set to SHOST_RECOVERY state. But this
may not kick-off EH Immediately until other outstanding QCs timeouts. As a
result, the host may remain in the SHOST_RECOVERY state for up to 30
seconds, such as follows:

[7972317.645234] hisi_sas_v3_hw 0000:74:04.0: erroneous completion iptt=3264 task=00000000466116b8 dev id=2 sas_addr=0x5000000000000502 CQ hdr: 0x1883 0x20cc0 0x40000 0x20420000 Error info: 0x0 0x0 0x200000 0x0
[7972341.508264] sas: Enter sas_scsi_recover_host busy: 32 failed: 32
[7972341.984731] sas: --- Exit sas_scsi_recover_host: busy: 0 failed: 32 tries: 1

All NCQ commands that are in the queue should be aborted when an NCQ error
occurs in this scenario.

Fixes: 05d91b557a ("scsi: hisi_sas: Directly trigger SCSI error handling for completion errors")
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Link: https://lore.kernel.org/r/1679283265-115066-3-git-send-email-chenxiang66@hisilicon.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Xingui Yang 2023-03-20 11:34:23 +08:00 committed by Martin K. Petersen
parent 71fb36b5ff
commit bb544224da
3 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
View File

@ -1258,7 +1258,11 @@ static void slot_complete_v1_hw(struct hisi_hba *hisi_hba,
slot_err_v1_hw(hisi_hba, task, slot);
if (unlikely(slot->abort)) {
if (dev_is_sata(device) && task->ata_task.use_ncq)
sas_ata_device_link_abort(device, true);
else
sas_task_abort(task);
return;
}
goto out;

4
drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
View File

@ -2404,7 +2404,11 @@ static void slot_complete_v2_hw(struct hisi_hba *hisi_hba,
error_info[2], error_info[3]);
if (unlikely(slot->abort)) {
if (dev_is_sata(device) && task->ata_task.use_ncq)
sas_ata_device_link_abort(device, true);
else
sas_task_abort(task);
return;
}
goto out;

4
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
View File

@ -2327,7 +2327,11 @@ static void slot_complete_v3_hw(struct hisi_hba *hisi_hba,
error_info[0], error_info[1],
error_info[2], error_info[3]);
if (unlikely(slot->abort)) {
if (dev_is_sata(device) && task->ata_task.use_ncq)
sas_ata_device_link_abort(device, true);
else
sas_task_abort(task);
return;
}
goto out;