diff options
Diffstat (limited to 'drivers/scsi/libsas/sas_task.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_task.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_task.c b/drivers/scsi/libsas/sas_task.c new file mode 100644 index 000000000..e9d291007 --- /dev/null +++ b/drivers/scsi/libsas/sas_task.c @@ -0,0 +1,42 @@ +// 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; + + switch (iu->datapres) { + case SAS_DATAPRES_NO_DATA: + tstat->stat = iu->status; + break; + case SAS_DATAPRES_RESPONSE_DATA: + tstat->stat = iu->resp_data[3]; + break; + case SAS_DATAPRES_SENSE_DATA: + tstat->stat = SAS_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 %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n", + SAS_ADDR(task->dev->sas_addr), iu->status); + break; + default: + /* when datapres contains corrupt/unknown value... */ + tstat->stat = SAS_SAM_STAT_CHECK_CONDITION; + } +} +EXPORT_SYMBOL_GPL(sas_ssp_task_response); + |