On Thu, Aug 13, 2015 at 6:13 PM, Jinpu Wang <[email protected]> wrote:
> 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?
>

We can't remove the state change command as it is required for 
some task management command such as ABORT_TASK.

> 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
>
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