[SCSI] libsas: fix mixed topology recovery
If we have a domain with sas and sata devices there may still be sas
recovery actions to take after peeling off the commands to send to
libata.
Reported-by: Andrzej Jakowski <andrzej.jakowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 26a943e..40edf52 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -699,10 +699,9 @@
sas_enable_revalidation(sas_ha);
}
-int sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
- struct list_head *done_q)
+void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
+ struct list_head *done_q)
{
- int rtn = 0;
struct scsi_cmnd *cmd, *n;
struct ata_port *ap;
@@ -719,7 +718,6 @@
if (ap && ap != ddev->sata_dev.ap)
continue;
ap = ddev->sata_dev.ap;
- rtn = 1;
list_move(&cmd->eh_entry, &sata_q);
}
@@ -741,8 +739,6 @@
list_del_init(sata_q.next);
}
} while (ap);
-
- return rtn;
}
void sas_ata_schedule_reset(struct domain_device *dev)
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index b563ff2..e58ca50 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -678,7 +678,8 @@
shost->host_eh_scheduled = 0;
spin_unlock_irqrestore(shost->host_lock, flags);
- SAS_DPRINTK("Enter %s\n", __func__);
+ SAS_DPRINTK("Enter %s busy: %d failed: %d\n",
+ __func__, shost->host_busy, shost->host_failed);
/*
* Deal with commands that still have SAS tasks (i.e. they didn't
* complete via the normal sas_task completion mechanism)
@@ -693,9 +694,9 @@
* scsi_unjam_host does, but we skip scsi_eh_abort_cmds because any
* command we see here has no sas_task and is thus unknown to the HA.
*/
- if (!sas_ata_eh(shost, &eh_work_q, &ha->eh_done_q))
- if (!scsi_eh_get_sense(&eh_work_q, &ha->eh_done_q))
- scsi_eh_ready_devs(shost, &eh_work_q, &ha->eh_done_q);
+ sas_ata_eh(shost, &eh_work_q, &ha->eh_done_q);
+ if (!scsi_eh_get_sense(&eh_work_q, &ha->eh_done_q))
+ scsi_eh_ready_devs(shost, &eh_work_q, &ha->eh_done_q);
out:
clear_bit(SAS_HA_FROZEN, &ha->state);
@@ -707,8 +708,8 @@
scsi_eh_flush_done_q(&ha->eh_done_q);
- SAS_DPRINTK("--- Exit %s\n", __func__);
- return;
+ SAS_DPRINTK("--- Exit %s: busy: %d failed: %d\n",
+ __func__, shost->host_busy, shost->host_failed);
}
enum blk_eh_timer_return sas_scsi_timed_out(struct scsi_cmnd *cmd)
diff --git a/include/scsi/sas_ata.h b/include/scsi/sas_ata.h
index da3f377..cb724fd 100644
--- a/include/scsi/sas_ata.h
+++ b/include/scsi/sas_ata.h
@@ -41,8 +41,8 @@
void sas_ata_task_abort(struct sas_task *task);
void sas_ata_strategy_handler(struct Scsi_Host *shost);
-int sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
- struct list_head *done_q);
+void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
+ struct list_head *done_q);
void sas_probe_sata(struct work_struct *work);
void sas_ata_schedule_reset(struct domain_device *dev);
void sas_ata_wait_eh(struct domain_device *dev);
@@ -66,10 +66,9 @@
{
}
-static inline int sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
- struct list_head *done_q)
+static inline void sas_ata_eh(struct Scsi_Host *shost, struct list_head *work_q,
+ struct list_head *done_q)
{
- return 0;
}
static inline void sas_probe_sata(struct work_struct *work)