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 | switch (iu->datapres) { |
19 | case SAS_DATAPRES_NO_DATA: |
20 | tstat->stat = iu->status; |
21 | break; |
22 | case SAS_DATAPRES_RESPONSE_DATA: |
23 | tstat->stat = iu->resp_data[3]; |
24 | break; |
25 | case SAS_DATAPRES_SENSE_DATA: |
26 | tstat->stat = SAS_SAM_STAT_CHECK_CONDITION; |
27 | tstat->buf_valid_size = |
28 | min_t(int, SAS_STATUS_BUF_SIZE, |
29 | be32_to_cpu(iu->sense_data_len)); |
30 | memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size); |
31 | |
32 | if (iu->status != SAM_STAT_CHECK_CONDITION) |
33 | dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n" , |
34 | SAS_ADDR(task->dev->sas_addr), iu->status); |
35 | break; |
36 | default: |
37 | /* when datapres contains corrupt/unknown value... */ |
38 | tstat->stat = SAS_SAM_STAT_CHECK_CONDITION; |
39 | } |
40 | } |
41 | EXPORT_SYMBOL_GPL(sas_ssp_task_response); |
42 | |
43 | |