Hi

On Tue, Aug 11, 2015 at 11:36 AM,  <[email protected]> wrote:
> From: Viswas G <[email protected]>
>
> In Nexus reset the device state request are not needed.
>
> Changes from V1:
> Device state change request has been removed as the firmware
> will handle it during internal cleanup. Also updated the
> proper return value in case of failures.

If above is true, should we remove the device state change command
support at all?

Other than that, please feel free to add:
Acked-by: Jack Wang <[email protected]>

Thanks
Jack


>
> Signed-off-by: Viswas G <[email protected]>
>
> Reviewed-by: Suresh Thiagarajan <[email protected]>
> ---
>  drivers/scsi/pm8001/pm8001_sas.c |   18 +++++++++++++-----
>  drivers/scsi/pm8001/pm8001_sas.h |    8 ++++++++
>  2 files changed, 21 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/scsi/pm8001/pm8001_sas.c 
> b/drivers/scsi/pm8001/pm8001_sas.c
> index b93f289..48f4627 100644
> --- a/drivers/scsi/pm8001/pm8001_sas.c
> +++ b/drivers/scsi/pm8001/pm8001_sas.c
> @@ -975,19 +975,27 @@ int pm8001_I_T_nexus_reset(struct domain_device *dev)
>         phy = sas_get_local_phy(dev);
>
>         if (dev_is_sata(dev)) {
> -               DECLARE_COMPLETION_ONSTACK(completion_setstate);
>                 if (scsi_is_sas_phy_local(phy)) {
>                         rc = 0;
>                         goto out;
>                 }
>                 rc = sas_phy_reset(phy, 1);
> +               if (rc) {
> +                       PM8001_EH_DBG(pm8001_ha,
> +                       pm8001_printk("phy reset failed for device %x\n"
> +                       "with rc %d\n", pm8001_dev->device_id, rc));
> +                       rc = TMF_RESP_FUNC_FAILED;
> +                       goto out;
> +               }
>                 msleep(2000);
>                 rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
>                         dev, 1, 0);
> -               pm8001_dev->setds_completion = &completion_setstate;
> -               rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
> -                       pm8001_dev, 0x01);
> -               wait_for_completion(&completion_setstate);
> +               if (rc) {
> +                       PM8001_EH_DBG(pm8001_ha,
> +                       pm8001_printk("task abort failed %x\n"
> +                       "with rc %d\n", pm8001_dev->device_id, rc));
> +                       rc = TMF_RESP_FUNC_FAILED;
> +               }
>         } else {
>                 rc = sas_phy_reset(phy, 1);
>                 msleep(2000);
> diff --git a/drivers/scsi/pm8001/pm8001_sas.h 
> b/drivers/scsi/pm8001/pm8001_sas.h
> index 8dd8b78..c9736cc 100644
> --- a/drivers/scsi/pm8001/pm8001_sas.h
> +++ b/drivers/scsi/pm8001/pm8001_sas.h
> @@ -569,6 +569,14 @@ struct pm8001_fw_image_header {
>  #define        NCQ_READ_LOG_FLAG                       0x80000000
>  #define        NCQ_ABORT_ALL_FLAG                      0x40000000
>  #define        NCQ_2ND_RLE_FLAG                        0x20000000
> +
> +/* Device states */
> +#define DS_OPERATIONAL                         0x01
> +#define DS_PORT_IN_RESET                       0x02
> +#define DS_IN_RECOVERY                         0x03
> +#define DS_IN_ERROR                            0x04
> +#define DS_NON_OPERATIONAL                     0x07
> +
>  /**
>   * brief param structure for firmware flash update.
>   */
> --
> 1.7.1
>



-- 
Mit freundlichen Grüßen,
Best Regards,

Jack Wang

Linux Kernel Developer Storage
ProfitBricks GmbH  The IaaS-Company.

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