提交 9960a24a 编写于 作者: X Xiang Chen 提交者: Martin K. Petersen

scsi: hisi_sas: fix SAS_QUEUE_FULL problem while running IO

This patch fix SAS_QUEUE_FULL problem. The test situation is close port while
running IO.

In sas_eh_handle_sas_errors(), SCSI EH will free sas_task of the device if
lldd_I_T_nexus_reset() return TMF_RESP_FUNC_COMPLETE or -ENODEV.  But in our
SAS driver, we only free slots of the device when the return value is
TMF_RESP_FUNC_COMPLETE. So if the return value is -ENODEV, the slot resource
will not free any more.

As an solution, we should also free slots of the device in
lldd_I_T_nexus_reset() if the return value is -ENODEV.
Signed-off-by: NXiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: NXiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: NJohn Garry <john.garry@huawei.com>
Signed-off-by: NMartin K. Petersen <martin.petersen@oracle.com>
上级 2a038131
......@@ -1308,7 +1308,7 @@ static int hisi_sas_I_T_nexus_reset(struct domain_device *device)
rc = hisi_sas_debug_I_T_nexus_reset(device);
if (rc == TMF_RESP_FUNC_COMPLETE) {
if ((rc == TMF_RESP_FUNC_COMPLETE) || (rc == -ENODEV)) {
spin_lock_irqsave(&hisi_hba->lock, flags);
hisi_sas_release_task(hisi_hba, device);
spin_unlock_irqrestore(&hisi_hba->lock, flags);
......
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