xref: /openbmc/linux/drivers/scsi/libsas/sas_task.c (revision 750afb08)
1 
2 #include "sas_internal.h"
3 
4 #include <linux/kernel.h>
5 #include <linux/export.h>
6 #include <scsi/sas.h>
7 #include <scsi/libsas.h>
8 
9 /* fill task_status_struct based on SSP response frame */
10 void sas_ssp_task_response(struct device *dev, struct sas_task *task,
11 			   struct ssp_response_iu *iu)
12 {
13 	struct task_status_struct *tstat = &task->task_status;
14 
15 	tstat->resp = SAS_TASK_COMPLETE;
16 
17 	if (iu->datapres == 0)
18 		tstat->stat = iu->status;
19 	else if (iu->datapres == 1)
20 		tstat->stat = iu->resp_data[3];
21 	else if (iu->datapres == 2) {
22 		tstat->stat = SAM_STAT_CHECK_CONDITION;
23 		tstat->buf_valid_size =
24 			min_t(int, SAS_STATUS_BUF_SIZE,
25 			      be32_to_cpu(iu->sense_data_len));
26 		memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
27 
28 		if (iu->status != SAM_STAT_CHECK_CONDITION)
29 			dev_warn(dev, "dev %llx sent sense data, but stat(%x) is not CHECK CONDITION\n",
30 				 SAS_ADDR(task->dev->sas_addr), iu->status);
31 	}
32 	else
33 		/* when datapres contains corrupt/unknown value... */
34 		tstat->stat = SAM_STAT_CHECK_CONDITION;
35 }
36 EXPORT_SYMBOL_GPL(sas_ssp_task_response);
37 
38