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Subject[PATCH 8/9] scsi: hisi_sas: Don't fail IT nexus reset for Open Reject timeout
Date
From: Luo Jiaxing <luojiaxing@huawei.com>

Currently we call hisi_sas_softreset_ata_disk() in
hisi_sas_I_T_nexus_reset().

If this fails for open reject reason, there is no reason to
fail the IT nexus reset, so only fail for TMF_RESP_FUNC_FAILED.

Some other strings spilled over multiple lines are reunited.

Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
drivers/scsi/hisi_sas/hisi_sas_main.c | 25 ++++++++++++++-----------
1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index c02cf78a20c7..ebeec7a52ddc 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -1287,8 +1287,7 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
/* no error, but return the number of bytes of
* underrun
*/
- dev_warn(dev, "abort tmf: task to dev %016llx "
- "resp: 0x%x sts 0x%x underrun\n",
+ dev_warn(dev, "abort tmf: task to dev %016llx resp: 0x%x sts 0x%x underrun\n",
SAS_ADDR(device->sas_addr),
task->task_status.resp,
task->task_status.stat);
@@ -1303,10 +1302,16 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
break;
}

- dev_warn(dev, "abort tmf: task to dev "
- "%016llx resp: 0x%x status 0x%x\n",
- SAS_ADDR(device->sas_addr), task->task_status.resp,
- task->task_status.stat);
+ if (task->task_status.resp == SAS_TASK_COMPLETE &&
+ task->task_status.stat == SAS_OPEN_REJECT) {
+ dev_warn(dev, "abort tmf: open reject failed\n");
+ res = -EIO;
+ } else {
+ dev_warn(dev, "abort tmf: task to dev %016llx resp: 0x%x status 0x%x\n",
+ SAS_ADDR(device->sas_addr),
+ task->task_status.resp,
+ task->task_status.stat);
+ }
sas_free_task(task);
task = NULL;
}
@@ -1826,7 +1831,7 @@ static int hisi_sas_I_T_nexus_reset(struct domain_device *device)

if (dev_is_sata(device)) {
rc = hisi_sas_softreset_ata_disk(device);
- if (rc)
+ if (rc == TMF_RESP_FUNC_FAILED)
return TMF_RESP_FUNC_FAILED;
}

@@ -2123,10 +2128,8 @@ _hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
}

exit:
- dev_dbg(dev, "internal task abort: task to dev %016llx task=%p "
- "resp: 0x%x sts 0x%x\n",
- SAS_ADDR(device->sas_addr),
- task,
+ dev_dbg(dev, "internal task abort: task to dev %016llx task=%p resp: 0x%x sts 0x%x\n",
+ SAS_ADDR(device->sas_addr), task,
task->task_status.resp, /* 0 is complete, -1 is undelivered */
task->task_status.stat);
sas_free_task(task);
--
2.17.1
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