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authorEric Moore <eric.moore@lsi.com>2009-04-21 15:41:32 -0600
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-04-27 10:54:02 -0500
commit8901cbb45e2a6657adf0e6eea4276ef452dee011 (patch)
tree39373e85c4019f1916b12dc477b851aa1f8a4db2 /drivers/scsi
parentf0f9cc1fb8a21f3ff90900505fc82a43d29d0975 (diff)
downloadlinux-8901cbb45e2a6657adf0e6eea4276ef452dee011.tar.bz2
[SCSI] mpt2sas : Broadcast Primative AEN bug fix
Bug fix in the broadcast primative async event code where the driver would stop sending tm queries after the first queury was completed. This was due driver not reseting the tm_cmds.status field back to MPT2_CMD_NOT_USED after completing a task management request. An addtional fix adding sanity check to insure sas_device->starget set to NULL. During multipath testing fail over/fail back, the mid layer was holding onto sdev longer than the fail back period, thus starget was getting set to NULL for device being added. Signed-off-by: Eric Moore <eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_scsih.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index f2d967c5415e..4dffbec79355 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -516,12 +516,8 @@ _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
handle = sas_device->handle;
parent_handle = sas_device->parent_handle;
sas_address = sas_device->sas_address;
- if (!mpt2sas_transport_port_add(ioc, handle, parent_handle)) {
+ if (!mpt2sas_transport_port_add(ioc, handle, parent_handle))
_scsih_sas_device_remove(ioc, sas_device);
- } else if (!sas_device->starget) {
- mpt2sas_transport_port_remove(ioc, sas_address, parent_handle);
- _scsih_sas_device_remove(ioc, sas_device);
- }
}
/**
@@ -1203,7 +1199,9 @@ scsih_target_destroy(struct scsi_target *starget)
rphy = dev_to_rphy(starget->dev.parent);
sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
rphy->identify.sas_address);
- if (sas_device)
+ if (sas_device && (sas_device->starget == starget) &&
+ (sas_device->id == starget->id) &&
+ (sas_device->channel == starget->channel))
sas_device->starget = NULL;
spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
@@ -3924,7 +3922,7 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
mpt2sas_scsih_issue_tm(ioc, handle, lun,
MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, smid, 30);
- termination_count += le32_to_cpu(mpi_reply->TerminationCount);
+ ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
if ((mpi_reply->IOCStatus == MPI2_IOCSTATUS_SUCCESS) &&
(mpi_reply->ResponseCode ==
@@ -3934,10 +3932,10 @@ _scsih_sas_broadcast_primative_event(struct MPT2SAS_ADAPTER *ioc, u8 VF_ID,
continue;
mpt2sas_scsih_issue_tm(ioc, handle, lun,
- MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, smid, 30);
+ MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET, 0, 30);
+ ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
termination_count += le32_to_cpu(mpi_reply->TerminationCount);
}
- ioc->tm_cmds.status = MPT2_CMD_NOT_USED;
ioc->broadcast_aen_busy = 0;
mutex_unlock(&ioc->tm_cmds.mutex);