summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/mpt2sas
diff options
context:
space:
mode:
authorKashyap, Desai <kashyap.desai@lsi.com>2011-01-04 11:34:17 +0530
committerJames Bottomley <James.Bottomley@suse.de>2011-01-24 09:15:38 -0600
commitefe82a16bc0f9f9e1fc8fa706eb0309fcd57770a (patch)
tree8a3f1fe2b986206a53b769c69c23dc9a82003905 /drivers/scsi/mpt2sas
parent4dc2757a2e9a9d1f2faee4fc6119276fc0061c16 (diff)
downloadop-kernel-dev-efe82a16bc0f9f9e1fc8fa706eb0309fcd57770a.zip
op-kernel-dev-efe82a16bc0f9f9e1fc8fa706eb0309fcd57770a.tar.gz
[SCSI] mpt2sas: fix internal device reset for older firmware prior to MPI Rev K
The "internal device reset complete" event is not supported for older firmware prior to MPI Rev K We added a check in the driver so the "internal device reset" event is ignored for older firmware. When ignored, the tm_busy flag doesn't get set nor cleared. Without this fix, IO queues would be froozen indefinetly after the "internal device reset" event, as the "complete" event never sent to clear the flag. Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Cc: stable@kernel.org Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index 95d8274..a16f2a0 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -5002,6 +5002,12 @@ _scsih_sas_device_status_change_event(struct MPT2SAS_ADAPTER *ioc,
event_data);
#endif
+ /* In MPI Revision K (0xC), the internal device reset complete was
+ * implemented, so avoid setting tm_busy flag for older firmware.
+ */
+ if ((ioc->facts.HeaderVersion >> 8) < 0xC)
+ return;
+
if (event_data->ReasonCode !=
MPI2_EVENT_SAS_DEV_STAT_RC_INTERNAL_DEVICE_RESET &&
event_data->ReasonCode !=
OpenPOWER on IntegriCloud