On Tue, 2017-04-25 at 14:46 -0500, Don Brace wrote:
> @@ -4655,23 +4860,46 @@ static int pqi_device_reset(struct pqi_ctrl_info 
> *ctrl_info,
>  static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
>  {
>       int rc;
> +     struct Scsi_Host *shost;
>       struct pqi_ctrl_info *ctrl_info;
>       struct pqi_scsi_dev *device;
>  
> -     ctrl_info = shost_to_hba(scmd->device->host);
> +     shost = scmd->device->host;
> +     ctrl_info = shost_to_hba(shost);
>       device = scmd->device->hostdata;
>  
>       dev_err(&ctrl_info->pci_dev->dev,
>               "resetting scsi %d:%d:%d:%d\n",
> -             ctrl_info->scsi_host->host_no,
> -             device->bus, device->target, device->lun);
> +             shost->host_no, device->bus, device->target, device->lun);
>  
> -     rc = pqi_device_reset(ctrl_info, device);
> +     pqi_check_ctrl_health(ctrl_info);
> +     if (pqi_ctrl_offline(ctrl_info)) {
> +             rc = FAILED;
> +             goto out;
> +     }
>  
> +     mutex_lock(&ctrl_info->lun_reset_mutex);
> +
> +     pqi_ctrl_block_requests(ctrl_info);
> +     pqi_ctrl_wait_until_quiesced(ctrl_info);
> +     pqi_fail_io_queued_for_device(ctrl_info, device);
> +     rc = pqi_wait_until_inbound_queues_empty(ctrl_info);
> +     pqi_device_reset_start(device);
> +     pqi_ctrl_unblock_requests(ctrl_info);
> +
> +     if (rc)
> +             rc = FAILED;
> +     else
> +             rc = pqi_device_reset(ctrl_info, device);
> +
> +     pqi_device_reset_done(device);
> +
> +     mutex_unlock(&ctrl_info->lun_reset_mutex);
> +
> +out:
>       dev_err(&ctrl_info->pci_dev->dev,
>               "reset of scsi %d:%d:%d:%d: %s\n",
> -             ctrl_info->scsi_host->host_no,
> -             device->bus, device->target, device->lun,
> +             shost->host_no, device->bus, device->target, device->lun,
>               rc == SUCCESS ? "SUCCESS" : "FAILED");
>  
>       return rc;

Please use scsi_target_block() / scsi_target_unblock() instead of reimplementing
these functions.

Thanks,

Bart.

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