drivers/scsi/libsas/sas_task.c

   1 #include <linux/kernel.h>
   2 #include <linux/export.h>
   3 #include <scsi/sas.h>
   4 #include <scsi/libsas.h>
   5
   6 /* fill task_status_struct based on SSP response frame */
   7 void sas_ssp_task_response(struct device *dev, struct sas_task *task,
   8                            struct ssp_response_iu *iu)
   9 {
  10         struct task_status_struct *tstat = &task->task_status;
  11
  12         tstat->resp = SAS_TASK_COMPLETE;
  13
  14         if (iu->datapres == 0)
  15                 tstat->stat = iu->status;
  16         else if (iu->datapres == 1)
  17                 tstat->stat = iu->resp_data[3];
  18         else if (iu->datapres == 2) {
  19                 tstat->stat = SAM_STAT_CHECK_CONDITION;
  20                 tstat->buf_valid_size =
  21                         min_t(int, SAS_STATUS_BUF_SIZE,
  22                               be32_to_cpu(iu->sense_data_len));
  23                 memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
  24
  25                 if (iu->status != SAM_STAT_CHECK_CONDITION)
  26                         dev_printk(KERN_WARNING, dev,
  27                                    "dev %llx sent sense data, but "
  28                                    "stat(%x) is not CHECK CONDITION\n",
  29                                    SAS_ADDR(task->dev->sas_addr),
  30                                    iu->status);
  31         }
  32         else
  33                 /* when datapres contains corrupt/unknown value... */
  34                 tstat->stat = SAM_STAT_CHECK_CONDITION;
  35 }
  36 EXPORT_SYMBOL_GPL(sas_ssp_task_response);
  37