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
9 struct 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
18 int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq);
19 int blk_mq_debugfs_rq_show(struct seq_file *m, void *v);
20
21 void blk_mq_debugfs_register(struct request_queue *q);
22 void blk_mq_debugfs_unregister(struct request_queue *q);
23 void blk_mq_debugfs_register_hctx(struct request_queue *q,
24 struct blk_mq_hw_ctx *hctx);
25 void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
26 void blk_mq_debugfs_register_hctxs(struct request_queue *q);
27 void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);
28
29 void blk_mq_debugfs_register_sched(struct request_queue *q);
30 void blk_mq_debugfs_unregister_sched(struct request_queue *q);
31 void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
32 struct blk_mq_hw_ctx *hctx);
33 void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
34
35 void blk_mq_debugfs_register_rqos(struct rq_qos *rqos);
36 void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos);
37 void blk_mq_debugfs_unregister_queue_rqos(struct request_queue *q);
38 #else
blk_mq_debugfs_register(struct request_queue * q)39 static inline void blk_mq_debugfs_register(struct request_queue *q)
40 {
41 }
42
blk_mq_debugfs_unregister(struct request_queue * q)43 static inline void blk_mq_debugfs_unregister(struct request_queue *q)
44 {
45 }
46
blk_mq_debugfs_register_hctx(struct request_queue * q,struct blk_mq_hw_ctx * hctx)47 static inline void blk_mq_debugfs_register_hctx(struct request_queue *q,
48 struct blk_mq_hw_ctx *hctx)
49 {
50 }
51
blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx * hctx)52 static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx)
53 {
54 }
55
blk_mq_debugfs_register_hctxs(struct request_queue * q)56 static inline void blk_mq_debugfs_register_hctxs(struct request_queue *q)
57 {
58 }
59
blk_mq_debugfs_unregister_hctxs(struct request_queue * q)60 static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q)
61 {
62 }
63
blk_mq_debugfs_register_sched(struct request_queue * q)64 static inline void blk_mq_debugfs_register_sched(struct request_queue *q)
65 {
66 }
67
blk_mq_debugfs_unregister_sched(struct request_queue * q)68 static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q)
69 {
70 }
71
blk_mq_debugfs_register_sched_hctx(struct request_queue * q,struct blk_mq_hw_ctx * hctx)72 static inline void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
73 struct blk_mq_hw_ctx *hctx)
74 {
75 }
76
blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx * hctx)77 static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx)
78 {
79 }
80
blk_mq_debugfs_register_rqos(struct rq_qos * rqos)81 static inline void blk_mq_debugfs_register_rqos(struct rq_qos *rqos)
82 {
83 }
84
blk_mq_debugfs_unregister_rqos(struct rq_qos * rqos)85 static inline void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos)
86 {
87 }
88
blk_mq_debugfs_unregister_queue_rqos(struct request_queue * q)89 static inline void blk_mq_debugfs_unregister_queue_rqos(struct request_queue *q)
90 {
91 }
92 #endif
93
94 #ifdef CONFIG_BLK_DEBUG_FS_ZONED
95 int queue_zone_wlock_show(void *data, struct seq_file *m);
96 #else
queue_zone_wlock_show(void * data,struct seq_file * m)97 static inline int queue_zone_wlock_show(void *data, struct seq_file *m)
98 {
99 return 0;
100 }
101 #endif
102
103 #endif
104