1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef INT_BLK_MQ_DEBUGFS_H
3#define INT_BLK_MQ_DEBUGFS_H
4
5#ifdef CONFIG_BLK_DEBUG_FS
6
7#include <linux/seq_file.h>
8
9struct blk_mq_debugfs_attr {
10 const char *name;
11 umode_t mode;
12 int (*show)(void *, struct seq_file *);
13 ssize_t (*write)(void *, const char __user *, size_t, loff_t *);
14 /* Set either .show or .seq_ops. */
15 const struct seq_operations *seq_ops;
16};
17
18int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq);
19int blk_mq_debugfs_rq_show(struct seq_file *m, void *v);
20
21int blk_mq_debugfs_register(struct request_queue *q);
22void blk_mq_debugfs_unregister(struct request_queue *q);
23int blk_mq_debugfs_register_hctx(struct request_queue *q,
24 struct blk_mq_hw_ctx *hctx);
25void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
26int blk_mq_debugfs_register_hctxs(struct request_queue *q);
27void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);
28
29int blk_mq_debugfs_register_sched(struct request_queue *q);
30void blk_mq_debugfs_unregister_sched(struct request_queue *q);
31int blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
32 struct blk_mq_hw_ctx *hctx);
33void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
34
35int blk_mq_debugfs_register_rqos(struct rq_qos *rqos);
36void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos);
37void blk_mq_debugfs_unregister_queue_rqos(struct request_queue *q);
38#else
39static inline int blk_mq_debugfs_register(struct request_queue *q)
40{
41 return 0;
42}
43
44static inline void blk_mq_debugfs_unregister(struct request_queue *q)
45{
46}
47
48static inline int blk_mq_debugfs_register_hctx(struct request_queue *q,
49 struct blk_mq_hw_ctx *hctx)
50{
51 return 0;
52}
53
54static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx)
55{
56}
57
58static inline int blk_mq_debugfs_register_hctxs(struct request_queue *q)
59{
60 return 0;
61}
62
63static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q)
64{
65}
66
67static inline int blk_mq_debugfs_register_sched(struct request_queue *q)
68{
69 return 0;
70}
71
72static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q)
73{
74}
75
76static inline int blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
77 struct blk_mq_hw_ctx *hctx)
78{
79 return 0;
80}
81
82static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx)
83{
84}
85
86static inline int blk_mq_debugfs_register_rqos(struct rq_qos *rqos)
87{
88 return 0;
89}
90
91static inline void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos)
92{
93}
94
95static inline void blk_mq_debugfs_unregister_queue_rqos(struct request_queue *q)
96{
97}
98#endif
99
100#ifdef CONFIG_BLK_DEBUG_FS_ZONED
101int queue_zone_wlock_show(void *data, struct seq_file *m);
102#else
103static inline int queue_zone_wlock_show(void *data, struct seq_file *m)
104{
105 return 0;
106}
107#endif
108
109#endif
110