Before enabling MPI2_SCSIIO_CONTROL_TLR_ON flag in MPI SCSI IO
request message, check whether TLR is enabled on the drive using
'sas_is_tlr_enabled' API.
Actually in the driver code, driver is using below API's
1. sas_enable_tlr() - to enable the TLR
2. sas_disable_tlr() - to disable the TLR
3. sas_is_tlr_enabled() - to check whether TLR is enabled or not.
but in scsih_qcmd() we have missed to use sas_is_tlr_enabled() API,
instead we checking for TLR bit from flag field of driver's
'struct MPT3SAS_DEVIC' structure. which is corrected with this patch.
Signed-off-by: Sreekanth Reddy <[email protected]>
---
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index d95206b..9ab77b0 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -3905,8 +3905,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
* We do not expose raid functionality to upper layer for warpdrive.
*/
if (!ioc->is_warpdrive && !scsih_is_raid(&scmd->device->sdev_gendev)
- && (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
- scmd->cmd_len != 32)
+ && sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
--
2.0.2
On 11/12/2015 07:10 PM, Sreekanth Reddy wrote:
> Before enabling MPI2_SCSIIO_CONTROL_TLR_ON flag in MPI SCSI IO
> request message, check whether TLR is enabled on the drive using
> 'sas_is_tlr_enabled' API.
>
> Actually in the driver code, driver is using below API's
>
> 1. sas_enable_tlr() - to enable the TLR
> 2. sas_disable_tlr() - to disable the TLR
> 3. sas_is_tlr_enabled() - to check whether TLR is enabled or not.
>
> but in scsih_qcmd() we have missed to use sas_is_tlr_enabled() API,
> instead we checking for TLR bit from flag field of driver's
> 'struct MPT3SAS_DEVIC' structure. which is corrected with this patch.
>
> Signed-off-by: Sreekanth Reddy <[email protected]>
> ---
> drivers/scsi/mpt3sas/mpt3sas_scsih.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> index d95206b..9ab77b0 100644
> --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
> @@ -3905,8 +3905,7 @@ scsih_qcmd(struct Scsi_Host *shost, struct scsi_cmnd *scmd)
> * We do not expose raid functionality to upper layer for warpdrive.
> */
> if (!ioc->is_warpdrive && !scsih_is_raid(&scmd->device->sdev_gendev)
> - && (sas_device_priv_data->flags & MPT_DEVICE_TLR_ON) &&
> - scmd->cmd_len != 32)
> + && sas_is_tlr_enabled(scmd->device) && scmd->cmd_len != 32)
> mpi_control |= MPI2_SCSIIO_CONTROL_TLR_ON;
>
> smid = mpt3sas_base_get_smid_scsiio(ioc, ioc->scsi_io_cb_idx, scmd);
>
Reviewed-by: Hannes Reinecke <[email protected]>
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
[email protected] +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 N?rnberg
GF: F. Imend?rffer, J. Smithard, J. Guild, D. Upmanyu, G. Norton
HRB 21284 (AG N?rnberg)
On 12.11.2015 19:10, Sreekanth Reddy wrote:
> Before enabling MPI2_SCSIIO_CONTROL_TLR_ON flag in MPI SCSI IO
> request message, check whether TLR is enabled on the drive using
> 'sas_is_tlr_enabled' API.
>
> Actually in the driver code, driver is using below API's
>
> 1. sas_enable_tlr() - to enable the TLR
> 2. sas_disable_tlr() - to disable the TLR
> 3. sas_is_tlr_enabled() - to check whether TLR is enabled or not.
>
> but in scsih_qcmd() we have missed to use sas_is_tlr_enabled() API,
> instead we checking for TLR bit from flag field of driver's
> 'struct MPT3SAS_DEVIC' structure. which is corrected with this patch.
>
> Signed-off-by: Sreekanth Reddy <[email protected]>
Reviewed-by: Tomas Henzl <[email protected]>
>>>>> "Sreekanth" == Sreekanth Reddy <[email protected]> writes:
Sreekanth> Before enabling MPI2_SCSIIO_CONTROL_TLR_ON flag in MPI SCSI
Sreekanth> IO request message, check whether TLR is enabled on the drive
Sreekanth> using 'sas_is_tlr_enabled' API.
Applied.
--
Martin K. Petersen Oracle Linux Engineering