linux/drivers/scsi/libsas/sas_task.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2
   3#include "sas_internal.h"
   4
   5#include <linux/kernel.h>
   6#include <linux/export.h>
   7#include <scsi/sas.h>
   8#include <scsi/libsas.h>
   9
  10/* fill task_status_struct based on SSP response frame */
  11void sas_ssp_task_response(struct device *dev, struct sas_task *task,
  12                           struct ssp_response_iu *iu)
  13{
  14        struct task_status_struct *tstat = &task->task_status;
  15
  16        tstat->resp = SAS_TASK_COMPLETE;
  17
  18        if (iu->datapres == 0)
  19                tstat->stat = iu->status;
  20        else if (iu->datapres == 1)
  21                tstat->stat = iu->resp_data[3];
  22        else if (iu->datapres == 2) {
  23                tstat->stat = SAM_STAT_CHECK_CONDITION;
  24                tstat->buf_valid_size =
  25                        min_t(int, SAS_STATUS_BUF_SIZE,
  26                              be32_to_cpu(iu->sense_data_len));
  27                memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
  28
  29                if (iu->status != SAM_STAT_CHECK_CONDITION)
  30                        dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n",
  31                                 SAS_ADDR(task->dev->sas_addr), iu->status);
  32        }
  33        else
  34                /* when datapres contains corrupt/unknown value... */
  35                tstat->stat = SAM_STAT_CHECK_CONDITION;
  36}
  37EXPORT_SYMBOL_GPL(sas_ssp_task_response);
  38
  39