[linux-block.git] / block / blk-mq-debugfs.h

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

#ifdef CONFIG_BLK_DEBUG_FS

#include <linux/seq_file.h>

struct blk_mq_hw_ctx;

struct blk_mq_debugfs_attr {
	const char *name;
	umode_t mode;
	int (*show)(void *, struct seq_file *);
	ssize_t (*write)(void *, const char __user *, size_t, loff_t *);
	/* Set either .show or .seq_ops. */
	const struct seq_operations *seq_ops;
};

int __blk_mq_debugfs_rq_show(struct seq_file *m, struct request *rq);
int blk_mq_debugfs_rq_show(struct seq_file *m, void *v);

void blk_mq_debugfs_register(struct request_queue *q);
void blk_mq_debugfs_register_hctx(struct request_queue *q,
				  struct blk_mq_hw_ctx *hctx);
void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
void blk_mq_debugfs_register_hctxs(struct request_queue *q);
void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);

void blk_mq_debugfs_register_sched(struct request_queue *q);
void blk_mq_debugfs_unregister_sched(struct request_queue *q);
void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
				       struct blk_mq_hw_ctx *hctx);
void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);

void blk_mq_debugfs_register_rqos(struct rq_qos *rqos);
void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos);
#else
static inline void blk_mq_debugfs_register(struct request_queue *q)
{
}

static inline void blk_mq_debugfs_register_hctx(struct request_queue *q,
						struct blk_mq_hw_ctx *hctx)
{
}

static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx)
{
}

static inline void blk_mq_debugfs_register_hctxs(struct request_queue *q)
{
}

static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q)
{
}

static inline void blk_mq_debugfs_register_sched(struct request_queue *q)
{
}

static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q)
{
}

static inline void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
						      struct blk_mq_hw_ctx *hctx)
{
}

static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx)
{
}

static inline void blk_mq_debugfs_register_rqos(struct rq_qos *rqos)
{
}

static inline void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos)
{
}
#endif

#ifdef CONFIG_BLK_DEBUG_FS_ZONED
int queue_zone_wlock_show(void *data, struct seq_file *m);
#else
static inline int queue_zone_wlock_show(void *data, struct seq_file *m)
{
	return 0;
}
#endif

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
d173a251 OS	2	#ifndef INT_BLK_MQ_DEBUGFS_H
	3	#define INT_BLK_MQ_DEBUGFS_H
	4
	5	#ifdef CONFIG_BLK_DEBUG_FS
d332ce09 OS	6
	7	#include <linux/seq_file.h>
	8
4e5cc99e ML	9	struct blk_mq_hw_ctx;
4e5cc99e ML	10
d332ce09 OS	11	struct blk_mq_debugfs_attr {
	12	const char *name;
	13	umode_t mode;
	14	int (show)(void , struct seq_file *);
	15	ssize_t (write)(void , const char __user , size_t, loff_t );
	16	/* Set either .show or .seq_ops. */
	17	const struct seq_operations *seq_ops;
	18	};
	19
daaadb3e	20	int __blk_mq_debugfs_rq_show(struct seq_file m, struct request rq);
16b738f6 OS	21	int blk_mq_debugfs_rq_show(struct seq_file m, void v);
16b738f6 OS	22
6cfc0081	23	void blk_mq_debugfs_register(struct request_queue *q);
6cfc0081 GKH	24	void blk_mq_debugfs_register_hctx(struct request_queue *q,
6cfc0081 GKH	25	struct blk_mq_hw_ctx *hctx);
9c1051aa	26	void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
6cfc0081	27	void blk_mq_debugfs_register_hctxs(struct request_queue *q);
9c1051aa	28	void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);
d332ce09	29
6cfc0081	30	void blk_mq_debugfs_register_sched(struct request_queue *q);
d332ce09	31	void blk_mq_debugfs_unregister_sched(struct request_queue *q);
6cfc0081	32	void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
d332ce09 OS	33	struct blk_mq_hw_ctx *hctx);
d332ce09 OS	34	void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
cc56694f	35
6cfc0081	36	void blk_mq_debugfs_register_rqos(struct rq_qos *rqos);
cc56694f	37	void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos);
d173a251	38	#else
6cfc0081	39	static inline void blk_mq_debugfs_register(struct request_queue *q)
d173a251	40	{
d173a251 OS	41	}
d173a251 OS	42
6cfc0081 GKH	43	static inline void blk_mq_debugfs_register_hctx(struct request_queue *q,
6cfc0081 GKH	44	struct blk_mq_hw_ctx *hctx)
d173a251	45	{
d173a251 OS	46	}
d173a251 OS	47
9c1051aa OS	48	static inline void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx)
	49	{
	50	}
	51
6cfc0081	52	static inline void blk_mq_debugfs_register_hctxs(struct request_queue *q)
9c1051aa	53	{
9c1051aa OS	54	}
	55
	56	static inline void blk_mq_debugfs_unregister_hctxs(struct request_queue *q)
d173a251 OS	57	{
d173a251 OS	58	}
d332ce09	59
6cfc0081	60	static inline void blk_mq_debugfs_register_sched(struct request_queue *q)
d332ce09	61	{
d332ce09 OS	62	}
	63
	64	static inline void blk_mq_debugfs_unregister_sched(struct request_queue *q)
	65	{
	66	}
	67
6cfc0081 GKH	68	static inline void blk_mq_debugfs_register_sched_hctx(struct request_queue *q,
6cfc0081 GKH	69	struct blk_mq_hw_ctx *hctx)
d332ce09	70	{
d332ce09 OS	71	}
	72
	73	static inline void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx)
	74	{
	75	}
cc56694f	76
6cfc0081	77	static inline void blk_mq_debugfs_register_rqos(struct rq_qos *rqos)
cc56694f	78	{
cc56694f ML	79	}
	80
	81	static inline void blk_mq_debugfs_unregister_rqos(struct rq_qos *rqos)
	82	{
	83	}
d173a251 OS	84	#endif
d173a251 OS	85
6a5ac984 BVA	86	#ifdef CONFIG_BLK_DEBUG_FS_ZONED
	87	int queue_zone_wlock_show(void data, struct seq_file m);
	88	#else
	89	static inline int queue_zone_wlock_show(void data, struct seq_file m)
	90	{
	91	return 0;
	92	}
	93	#endif
	94
d173a251	95	#endif