[linux-block.git] / include / linux / bsg.h

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

#include <uapi/linux/bsg.h>

struct request;

#ifdef CONFIG_BLK_DEV_BSG
struct bsg_ops {
	int	(*check_proto)(struct sg_io_v4 *hdr);
	int	(*fill_hdr)(struct request *rq, struct sg_io_v4 *hdr,
				fmode_t mode);
	int	(*complete_rq)(struct request *rq, struct sg_io_v4 *hdr);
	void	(*free_rq)(struct request *rq);
};

struct bsg_class_device {
	struct device *class_dev;
	struct device *parent;
	int minor;
	struct request_queue *queue;
	struct kref ref;
	const struct bsg_ops *ops;
	void (*release)(struct device *);
};

int bsg_register_queue(struct request_queue *q, struct device *parent,
		const char *name, const struct bsg_ops *ops,
		void (*release)(struct device *));
int bsg_scsi_register_queue(struct request_queue *q, struct device *parent);
void bsg_unregister_queue(struct request_queue *q);
#else
static inline int bsg_scsi_register_queue(struct request_queue *q,
		struct device *parent)
{
	return 0;
}
static inline void bsg_unregister_queue(struct request_queue *q)
{
}
#endif /* CONFIG_BLK_DEV_BSG */
#endif /* _LINUX_BSG_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
17cb960f CH	2	#ifndef _LINUX_BSG_H
17cb960f CH	3	#define _LINUX_BSG_H
3d6392cf	4
607ca46e	5	#include <uapi/linux/bsg.h>
4ab3b73f	6
17cb960f CH	7	struct request;
	8
	9	#ifdef CONFIG_BLK_DEV_BSG
	10	struct bsg_ops {
	11	int (check_proto)(struct sg_io_v4 hdr);
	12	int (fill_hdr)(struct request rq, struct sg_io_v4 *hdr,
	13	fmode_t mode);
	14	int (complete_rq)(struct request rq, struct sg_io_v4 *hdr);
	15	void (free_rq)(struct request rq);
	16	};
45977d0e	17
3d6392cf	18	struct bsg_class_device {
ee959b00	19	struct device *class_dev;
97f46ae4	20	struct device *parent;
3d6392cf	21	int minor;
d351af01	22	struct request_queue *queue;
97f46ae4	23	struct kref ref;
17cb960f	24	const struct bsg_ops *ops;
97f46ae4	25	void (release)(struct device );
3d6392cf JA	26	};
3d6392cf JA	27
17cb960f CH	28	int bsg_register_queue(struct request_queue q, struct device parent,
	29	const char name, const struct bsg_ops ops,
	30	void (release)(struct device ));
	31	int bsg_scsi_register_queue(struct request_queue q, struct device parent);
	32	void bsg_unregister_queue(struct request_queue *q);
3d6392cf	33	#else
17cb960f CH	34	static inline int bsg_scsi_register_queue(struct request_queue *q,
17cb960f CH	35	struct device *parent)
a4ee0df8 JB	36	{
	37	return 0;
	38	}
97f46ae4	39	static inline void bsg_unregister_queue(struct request_queue *q)
a4ee0df8 JB	40	{
a4ee0df8 JB	41	}
17cb960f CH	42	#endif /* CONFIG_BLK_DEV_BSG */
17cb960f CH	43	#endif /* _LINUX_BSG_H */