diff options
| author | Kashyap, Desai <kashyap.desai@lsi.com> | 2011-07-05 12:40:23 +0530 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-07-26 13:56:27 +0400 |
| commit | 82a452581230b3ffc9d6475dffdb2568497b5fec (patch) | |
| tree | 4a46487a0d0c9053688a192a297ddd6496aa7f6c /drivers/scsi/mpt2sas/mpt2sas_scsih.c | |
| parent | b2a554ff9ad5cdd8d00dac168f2bb3db7ccedb61 (diff) | |
[SCSI] mpt2sas: WarpDrive Infinite command retries due to wrong scsi command entry in MPI message
Issue:
This issue is seen on LSI H/W WarpDrive SSS6200 When filed direct I/O
is tried as volume I/O the scmd field in internal lookup table get
cleared and because of that the retried volume I/O never gets reported
as completed to SML.
Result:
I/O timeout and Error handling thread will kicking off
Fix:
Setting back the scmd in the lookup table before retrying the failed
direct i/o
Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_scsih.c')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_scsih.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 939f283d0c28..6abd2fcc43e2 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -4258,6 +4258,7 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) u32 log_info; struct MPT2SAS_DEVICE *sas_device_priv_data; u32 response_code = 0; + unsigned long flags; mpi_reply = mpt2sas_base_get_reply_virt_addr(ioc, reply); scmd = _scsih_scsi_lookup_get_clear(ioc, smid); @@ -4282,6 +4283,9 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) * the failed direct I/O should be redirected to volume */ if (_scsih_scsi_direct_io_get(ioc, smid)) { + spin_lock_irqsave(&ioc->scsi_lookup_lock, flags); + ioc->scsi_lookup[smid - 1].scmd = scmd; + spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); _scsih_scsi_direct_io_set(ioc, smid, 0); memcpy(mpi_request->CDB.CDB32, scmd->cmnd, scmd->cmd_len); mpi_request->DevHandle = |