[mirror_ubuntu-artful-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;
	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
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;
17d5363b	12	int result;
82ed4db4 CH	13	unsigned int sense_len;
82ed4db4 CH	14	unsigned int resid_len; /* residual count */
64c7f1d1	15	int retries;
82ed4db4 CH	16	void *sense;
	17	};
	18
	19	static inline struct scsi_request scsi_req(struct request rq)
	20	{
	21	return blk_mq_rq_to_pdu(rq);
	22	}
	23
	24	static inline void scsi_req_free_cmd(struct scsi_request *req)
	25	{
	26	if (req->cmd != req->__cmd)
	27	kfree(req->cmd);
	28	}
	29
c8d9cf22	30	void scsi_req_init(struct scsi_request *req);
82ed4db4 CH	31
82ed4db4 CH	32	#endif /* _SCSI_SCSI_REQUEST_H */