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1// SPDX-License-Identifier: GPL-2.0-only2 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 switch (iu->datapres) {19 case SAS_DATAPRES_NO_DATA:20 tstat->stat = iu->status;21 break;22 case SAS_DATAPRES_RESPONSE_DATA:23 tstat->stat = iu->resp_data[3];24 break;25 case SAS_DATAPRES_SENSE_DATA:26 tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;27 tstat->buf_valid_size =28 min_t(int, SAS_STATUS_BUF_SIZE,29 be32_to_cpu(iu->sense_data_len));30 memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);31 32 if (iu->status != SAM_STAT_CHECK_CONDITION)33 dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n",34 SAS_ADDR(task->dev->sas_addr), iu->status);35 break;36 default:37 /* when datapres contains corrupt/unknown value... */38 tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;39 }40}41EXPORT_SYMBOL_GPL(sas_ssp_task_response);42 43