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