[mirror_ubuntu-bionic-kernel.git] / include / scsi / scsi_request.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _SCSI_SCSI_REQUEST_H
#define _SCSI_SCSI_REQUEST_H

#include <linux/blk-mq.h>

#define BLK_MAX_CDB	16

struct scsi_request {
	unsigned char	__cmd[BLK_MAX_CDB];
	unsigned char	*cmd;
	unsigned short	cmd_len;
	int		result;
	unsigned int	sense_len;
	unsigned int	resid_len;	/* residual count */
	int		retries;
	void		*sense;
};

static inline struct scsi_request *scsi_req(struct request *rq)
{
	return blk_mq_rq_to_pdu(rq);
}

static inline void scsi_req_free_cmd(struct scsi_request *req)
{
	if (req->cmd != req->__cmd)
		kfree(req->cmd);
}

void scsi_req_init(struct scsi_request *req);

#endif /* _SCSI_SCSI_REQUEST_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
82ed4db4 CH	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
	9	struct scsi_request {
	10	unsigned char __cmd[BLK_MAX_CDB];
	11	unsigned char *cmd;
	12	unsigned short cmd_len;
17d5363b	13	int result;
82ed4db4 CH	14	unsigned int sense_len;
82ed4db4 CH	15	unsigned int resid_len; /* residual count */
64c7f1d1	16	int retries;
82ed4db4 CH	17	void *sense;
	18	};
	19
	20	static inline struct scsi_request scsi_req(struct request rq)
	21	{
	22	return blk_mq_rq_to_pdu(rq);
	23	}
	24
	25	static inline void scsi_req_free_cmd(struct scsi_request *req)
	26	{
	27	if (req->cmd != req->__cmd)
	28	kfree(req->cmd);
	29	}
	30
c8d9cf22	31	void scsi_req_init(struct scsi_request *req);
82ed4db4 CH	32
82ed4db4 CH	33	#endif /* _SCSI_SCSI_REQUEST_H */