drivers/scsi/libsas/sas_task.c

   1 #include <linux/kernel.h>
   2 #include <scsi/sas.h>
   3 #include <scsi/libsas.h>
   4
   5 /* fill task_status_struct based on SSP response frame */
   6 void sas_ssp_task_response(struct device *dev, struct sas_task *task,
   7                            struct ssp_response_iu *iu)
   8 {
   9         struct task_status_struct *tstat = &task->task_status;
  10
  11         tstat->resp = SAS_TASK_COMPLETE;
  12
  13         if (iu->datapres == 0)
  14                 tstat->stat = iu->status;
  15         else if (iu->datapres == 1)
  16                 tstat->stat = iu->resp_data[3];
  17         else if (iu->datapres == 2) {
  18                 tstat->stat = SAM_STAT_CHECK_CONDITION;
  19                 tstat->buf_valid_size =
  20                         min_t(int, SAS_STATUS_BUF_SIZE,
  21                               be32_to_cpu(iu->sense_data_len));
  22                 memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
  23
  24                 if (iu->status != SAM_STAT_CHECK_CONDITION)
  25                         dev_printk(KERN_WARNING, dev,
  26                                    "dev %llx sent sense data, but "
  27                                    "stat(%x) is not CHECK CONDITION\n",
  28                                    SAS_ADDR(task->dev->sas_addr),
  29                                    iu->status);
  30         }
  31         else
  32                 /* when datapres contains corrupt/unknown value... */
  33                 tstat->stat = SAM_STAT_CHECK_CONDITION;
  34 }
  35 EXPORT_SYMBOL_GPL(sas_ssp_task_response);
  36