Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _LINUX_BSG_H
3#define _LINUX_BSG_H
4
5#include <uapi/linux/bsg.h>
6
7struct request;
8
9#ifdef CONFIG_BLK_DEV_BSG
10struct 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};
17
18struct bsg_class_device {
19 struct device *class_dev;
20 struct device *parent;
21 int minor;
22 struct request_queue *queue;
23 struct kref ref;
24 const struct bsg_ops *ops;
25 void (*release)(struct device *);
26};
27
28int bsg_register_queue(struct request_queue *q, struct device *parent,
29 const char *name, const struct bsg_ops *ops,
30 void (*release)(struct device *));
31int bsg_scsi_register_queue(struct request_queue *q, struct device *parent);
32void bsg_unregister_queue(struct request_queue *q);
33#else
34static inline int bsg_scsi_register_queue(struct request_queue *q,
35 struct device *parent)
36{
37 return 0;
38}
39static inline void bsg_unregister_queue(struct request_queue *q)
40{
41}
42#endif /* CONFIG_BLK_DEV_BSG */
43#endif /* _LINUX_BSG_H */