43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include "sas_internal.h"
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#include <linux/kernel.h>
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#include <linux/export.h>
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#include <scsi/sas.h>
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#include <scsi/libsas.h>
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/* fill task_status_struct based on SSP response frame */
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void sas_ssp_task_response(struct device *dev, struct sas_task *task,
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struct ssp_response_iu *iu)
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{
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struct task_status_struct *tstat = &task->task_status;
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tstat->resp = SAS_TASK_COMPLETE;
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switch (iu->datapres) {
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case SAS_DATAPRES_NO_DATA:
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tstat->stat = iu->status;
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break;
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case SAS_DATAPRES_RESPONSE_DATA:
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tstat->stat = iu->resp_data[3];
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break;
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case SAS_DATAPRES_SENSE_DATA:
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tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
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tstat->buf_valid_size =
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min_t(int, SAS_STATUS_BUF_SIZE,
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be32_to_cpu(iu->sense_data_len));
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memcpy(tstat->buf, iu->sense_data, tstat->buf_valid_size);
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if (iu->status != SAM_STAT_CHECK_CONDITION)
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dev_warn(dev, "dev %016llx sent sense data, but stat(0x%x) is not CHECK CONDITION\n",
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SAS_ADDR(task->dev->sas_addr), iu->status);
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break;
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default:
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/* when datapres contains corrupt/unknown value... */
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tstat->stat = SAS_SAM_STAT_CHECK_CONDITION;
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}
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}
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EXPORT_SYMBOL_GPL(sas_ssp_task_response);
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