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 = SAS_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 = SAS_SAM_STAT_CHECK_CONDITION;
36}
37EXPORT_SYMBOL_GPL(sas_ssp_task_response);
38
39