LXR linux/include/scsi/scsi

   1/* SPDX-License-Identifier: GPL-2.0 */
   2#ifndef _SCSI_SCSI_REQUEST_H
   3#define _SCSI_SCSI_REQUEST_H
   4
   5#include <linux/blk-mq.h>
   6
   7#define BLK_MAX_CDB     16
   8
   9struct scsi_request {
  10        unsigned char   __cmd[BLK_MAX_CDB];
  11        unsigned char   *cmd;
  12        unsigned short  cmd_len;
  13        int             result;
  14        unsigned int    sense_len;
  15        unsigned int    resid_len;      /* residual count */
  16        int             retries;
  17        void            *sense;
  18};
  19
  20static inline struct scsi_request *scsi_req(struct request *rq)
  21{
  22        return blk_mq_rq_to_pdu(rq);
  23}
  24
  25static inline void scsi_req_free_cmd(struct scsi_request *req)
  26{
  27        if (req->cmd != req->__cmd)
  28                kfree(req->cmd);
  29}
  30
  31void scsi_req_init(struct scsi_request *req);
  32
  33#endif /* _SCSI_SCSI_REQUEST_H */
  34