xref: /openbmc/linux/drivers/scsi/libsas/sas_task.c (revision 46a73e9e)
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 */
11 void 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 %llx sent sense data, but stat(%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 }
37 EXPORT_SYMBOL_GPL(sas_ssp_task_response);
38 
39