summaryrefslogtreecommitdiff
path: root/drivers/scsi/libsas/sas_task.c
blob: 1ded7d85027ec59c300ba2e25de73ee5692e48dd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
// 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;

	if (iu->datapres == 0)
		tstat->stat = iu->status;
	else if (iu->datapres == 1)
		tstat->stat = iu->resp_data[3];
	else if (iu->datapres == 2) {
		tstat->stat = 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 %llx sent sense data, but stat(%x) is not CHECK CONDITION\n",
				 SAS_ADDR(task->dev->sas_addr), iu->status);
	}
	else
		/* when datapres contains corrupt/unknown value... */
		tstat->stat = SAM_STAT_CHECK_CONDITION;
}
EXPORT_SYMBOL_GPL(sas_ssp_task_response);