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// SPDX-License-Identifier: GPL-2.0-only
#include "sas_internal.h"
#include <linux/kernel.h>
#include <linux/export.h>
#include <scsi/sas.h>
#include <scsi/libsas.h>
/* fill task_status_struct based on SSP response frame */
void sas_ssp_task_response(struct device *dev, struct sas_task *task,
struct ssp_response_iu *iu)
{
struct task_status_struct *tstat = &task->task_status;
tstat->resp = SAS_TASK_COMPLETE;
switch (iu->datapres) {
case SAS_DATAPRES_NO_DATA:
tstat->stat = iu->status;
break;
case SAS_DATAPRES_RESPONSE_DATA:
tstat->stat = iu->resp_data[3];
break;
case SAS_DATAPRES_SENSE_DATA:
tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
tstat->buf_valid_size =
min_t(int, SAS_STATUS_BUF_SIZE,
be32_to_cpu(iu->sense_data_len));
memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
if (iu->status != SAM_STAT_CHECK_CONDITION)
dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n",
SAS_ADDR(task->dev->sas_addr), iu->status);
break;
default:
/* when datapres contains corrupt/unknown value... */
tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
}
}
EXPORT_SYMBOL_GPL(sas_ssp_task_response);
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