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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
17cb960f CH |
2 | #ifndef _LINUX_BSG_H |
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; |
3d6392cf | 20 | int minor; |
d351af01 | 21 | struct request_queue *queue; |
17cb960f | 22 | const struct bsg_ops *ops; |
3d6392cf JA |
23 | }; |
24 | ||
17cb960f | 25 | int bsg_register_queue(struct request_queue *q, struct device *parent, |
5de815a7 | 26 | const char *name, const struct bsg_ops *ops); |
17cb960f CH |
27 | int bsg_scsi_register_queue(struct request_queue *q, struct device *parent); |
28 | void bsg_unregister_queue(struct request_queue *q); | |
3d6392cf | 29 | #else |
17cb960f CH |
30 | static inline int bsg_scsi_register_queue(struct request_queue *q, |
31 | struct device *parent) | |
a4ee0df8 JB |
32 | { |
33 | return 0; | |
34 | } | |
97f46ae4 | 35 | static inline void bsg_unregister_queue(struct request_queue *q) |
a4ee0df8 JB |
36 | { |
37 | } | |
17cb960f CH |
38 | #endif /* CONFIG_BLK_DEV_BSG */ |
39 | #endif /* _LINUX_BSG_H */ |