One driver patch (qla2xxx) which fixes a problem caused by an existing
regression fix (FCP discovery is failing) and one generic fix to a
longstanding bug in libsas that causes I/O eventually to hang to the
device in the face of ATA error recovery.
The patch is available here:
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git scsi-fixes
The short changelog is:
Himanshu Madhani (1):
scsi: qla2xxx: Remove FC_NO_LOOP_ID for FCP and FC-NVMe Discovery
Jason Yan (1):
scsi: libsas: defer ata device eh commands to libata
And the diffstat:
drivers/scsi/libsas/sas_scsi_host.c | 33 +++++++++++++--------------------
drivers/scsi/qla2xxx/qla_init.c | 1 -
2 files changed, 13 insertions(+), 21 deletions(-)
With full diff below.
James
---
diff --git a/drivers/scsi/libsas/sas_scsi_host.c
b/drivers/scsi/libsas/sas_scsi_host.c
index 626727207889..a372af68d9a9 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -223,6 +223,7 @@ int sas_queuecommand(struct Scsi_Host *host, struct
scsi_cmnd *cmd)
static void sas_eh_finish_cmd(struct scsi_cmnd *cmd)
{
struct sas_ha_struct *sas_ha = SHOST_TO_SAS_HA(cmd->device->host);
+ struct domain_device *dev = cmd_to_domain_dev(cmd);
struct sas_task *task = TO_SAS_TASK(cmd);
/* At this point, we only get called following an actual abort
@@ -231,6 +232,14 @@ static void sas_eh_finish_cmd(struct scsi_cmnd *cmd)
*/
sas_end_task(cmd, task);
+ if (dev_is_sata(dev)) {
+ /* defer commands to libata so that libata EH can
+ * handle ata qcs correctly
+ */
+ list_move_tail(&cmd->eh_entry, &sas_ha->eh_ata_q);
+ return;
+ }
+
/* now finish the command and move it on to the error
* handler done list, this also takes it off the
* error handler pending list.
@@ -238,22 +247,6 @@ static void sas_eh_finish_cmd(struct scsi_cmnd *cmd)
scsi_eh_finish_cmd(cmd, &sas_ha->eh_done_q);
}
-static void sas_eh_defer_cmd(struct scsi_cmnd *cmd)
-{
- struct domain_device *dev = cmd_to_domain_dev(cmd);
- struct sas_ha_struct *ha = dev->port->ha;
- struct sas_task *task = TO_SAS_TASK(cmd);
-
- if (!dev_is_sata(dev)) {
- sas_eh_finish_cmd(cmd);
- return;
- }
-
- /* report the timeout to libata */
- sas_end_task(cmd, task);
- list_move_tail(&cmd->eh_entry, &ha->eh_ata_q);
-}
-
static void sas_scsi_clear_queue_lu(struct list_head *error_q, struct
scsi_cmnd *my_cmd)
{
struct scsi_cmnd *cmd, *n;
@@ -261,7 +254,7 @@ static void sas_scsi_clear_queue_lu(struct list_head
*error_q, struct scsi_cmnd
list_for_each_entry_safe(cmd, n, error_q, eh_entry) {
if (cmd->device->sdev_target == my_cmd->device->sdev_target &&
cmd->device->lun == my_cmd->device->lun)
- sas_eh_defer_cmd(cmd);
+ sas_eh_finish_cmd(cmd);
}
}
@@ -618,12 +611,12 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host
*shost, struct list_head *
case TASK_IS_DONE:
SAS_DPRINTK("%s: task 0x%p is done\n", __func__,
task);
- sas_eh_defer_cmd(cmd);
+ sas_eh_finish_cmd(cmd);
continue;
case TASK_IS_ABORTED:
SAS_DPRINTK("%s: task 0x%p is aborted\n",
__func__, task);
- sas_eh_defer_cmd(cmd);
+ sas_eh_finish_cmd(cmd);
continue;
case TASK_IS_AT_LU:
SAS_DPRINTK("task 0x%p is at LU: lu recover\n", task);
@@ -634,7 +627,7 @@ static void sas_eh_handle_sas_errors(struct Scsi_Host
*shost, struct list_head *
"recovered\n",
SAS_ADDR(task->dev),
cmd->device->lun);
- sas_eh_defer_cmd(cmd);
+ sas_eh_finish_cmd(cmd);
sas_scsi_clear_queue_lu(work_q, cmd);
goto Again;
}
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 00329dda6179..8d7fab3cd01d 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1719,7 +1719,6 @@ qla24xx_handle_plogi_done_event(struct scsi_qla_host
*vha, struct event_arg *ea)
set_bit(ea->fcport->loop_id, vha->hw->loop_id_map);
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
- ea->fcport->loop_id = FC_NO_LOOP_ID;
ea->fcport->chip_reset =
vha->hw->base_qpair->chip_reset;
ea->fcport->logout_on_delete = 1;
ea->fcport->send_els_logo = 0;
