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: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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);