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

#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;
	unsigned int	sense_len;
	unsigned int	resid_len;	/* residual count */
	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 request *);

#endif /* _SCSI_SCSI_REQUEST_H */
Commit	Line	Data
82ed4db4 CH	1	#ifndef _SCSI_SCSI_REQUEST_H
	2	#define _SCSI_SCSI_REQUEST_H
	3
	4	#include <linux/blk-mq.h>
	5
	6	#define BLK_MAX_CDB 16
	7
	8	struct scsi_request {
	9	unsigned char __cmd[BLK_MAX_CDB];
	10	unsigned char *cmd;
	11	unsigned short cmd_len;
	12	unsigned int sense_len;
	13	unsigned int resid_len; /* residual count */
	14	void *sense;
	15	};
	16
	17	static inline struct scsi_request scsi_req(struct request rq)
	18	{
	19	return blk_mq_rq_to_pdu(rq);
	20	}
	21
	22	static inline void scsi_req_free_cmd(struct scsi_request *req)
	23	{
	24	if (req->cmd != req->__cmd)
	25	kfree(req->cmd);
	26	}
	27
	28	void scsi_req_init(struct request *);
	29
	30	#endif /* _SCSI_SCSI_REQUEST_H */