scsi: pm80xx: Check for fatal error
When the controller runs into a fatal error, commands get stuck due to no
response. If the controller is in fatal error state, abort requests issued
to the controller get stuck too.
Check the controller state for fatal error conditions.
Link: https://lore.kernel.org/r/20210109123849.17098-3-Viswas.G@microchip.com
Acked-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Signed-off-by: akshatzen <akshatzen@google.com>
Signed-off-by: Viswas G <Viswas.G@microchip.com>
Signed-off-by: Ruksar Devadi <Ruksar.devadi@microchip.com>
Signed-off-by: Radha Ramachandran <radha@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index d1e9dba..f8d142f 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1183,12 +1183,21 @@ int pm8001_abort_task(struct sas_task *task)
int rc = TMF_RESP_FUNC_FAILED, ret;
u32 phy_id;
struct sas_task_slow slow_task;
+
if (unlikely(!task || !task->lldd_task || !task->dev))
return TMF_RESP_FUNC_FAILED;
+
dev = task->dev;
pm8001_dev = dev->lldd_dev;
pm8001_ha = pm8001_find_ha_by_dev(dev);
phy_id = pm8001_dev->attached_phy;
+
+ if (PM8001_CHIP_DISP->fatal_errors(pm8001_ha)) {
+ // If the controller is seeing fatal errors
+ // abort task will not get a response from the controller
+ return TMF_RESP_FUNC_FAILED;
+ }
+
ret = pm8001_find_tag(task, &tag);
if (ret == 0) {
pm8001_info(pm8001_ha, "no tag for task:%p\n", task);