[linux-2.6-block.git] / include / net / gen_stats.h

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

#include <linux/gen_stats.h>
#include <linux/socket.h>
#include <linux/rtnetlink.h>
#include <linux/pkt_sched.h>

struct gnet_stats_basic_cpu {
	struct gnet_stats_basic_packed bstats;
	struct u64_stats_sync syncp;
} __aligned(2 * sizeof(u64));

struct net_rate_estimator;

struct gnet_dump {
	spinlock_t *      lock;
	struct sk_buff *  skb;
	struct nlattr *   tail;

	/* Backward compatibility */
	int               compat_tc_stats;
	int               compat_xstats;
	int               padattr;
	void *            xstats;
	int               xstats_len;
	struct tc_stats   tc_stats;
};

int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
			  struct gnet_dump *d, int padattr);

int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
				 int tc_stats_type, int xstats_type,
				 spinlock_t *lock, struct gnet_dump *d,
				 int padattr);

int gnet_stats_copy_basic(const seqcount_t *running,
			  struct gnet_dump *d,
			  struct gnet_stats_basic_cpu __percpu *cpu,
			  struct gnet_stats_basic_packed *b);
void __gnet_stats_copy_basic(const seqcount_t *running,
			     struct gnet_stats_basic_packed *bstats,
			     struct gnet_stats_basic_cpu __percpu *cpu,
			     struct gnet_stats_basic_packed *b);
int gnet_stats_copy_basic_hw(const seqcount_t *running,
			     struct gnet_dump *d,
			     struct gnet_stats_basic_cpu __percpu *cpu,
			     struct gnet_stats_basic_packed *b);
int gnet_stats_copy_rate_est(struct gnet_dump *d,
			     struct net_rate_estimator __rcu **ptr);
int gnet_stats_copy_queue(struct gnet_dump *d,
			  struct gnet_stats_queue __percpu *cpu_q,
			  struct gnet_stats_queue *q, __u32 qlen);
void __gnet_stats_copy_queue(struct gnet_stats_queue *qstats,
			     const struct gnet_stats_queue __percpu *cpu_q,
			     const struct gnet_stats_queue *q, __u32 qlen);
int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);

int gnet_stats_finish_copy(struct gnet_dump *d);

int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
		      struct gnet_stats_basic_cpu __percpu *cpu_bstats,
		      struct net_rate_estimator __rcu **rate_est,
		      spinlock_t *lock,
		      seqcount_t *running, struct nlattr *opt);
void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
			  struct gnet_stats_basic_cpu __percpu *cpu_bstats,
			  struct net_rate_estimator __rcu **ptr,
			  spinlock_t *lock,
			  seqcount_t *running, struct nlattr *opt);
bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
			struct gnet_stats_rate_est64 *sample);
#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef __NET_GEN_STATS_H
	3	#define __NET_GEN_STATS_H
	4
	5	#include <linux/gen_stats.h>
	6	#include <linux/socket.h>
	7	#include <linux/rtnetlink.h>
	8	#include <linux/pkt_sched.h>
	9
22e0f8b9 JF	10	struct gnet_stats_basic_cpu {
	11	struct gnet_stats_basic_packed bstats;
	12	struct u64_stats_sync syncp;
001c96db	13	} __aligned(2 * sizeof(u64));
22e0f8b9	14
1c0d32fd ED	15	struct net_rate_estimator;
1c0d32fd ED	16
fd2c3ef7	17	struct gnet_dump {
1da177e4 LT	18	spinlock_t * lock;
1da177e4 LT	19	struct sk_buff * skb;
1e90474c	20	struct nlattr * tail;
1da177e4	21
25985edc	22	/* Backward compatibility */
1da177e4 LT	23	int compat_tc_stats;
1da177e4 LT	24	int compat_xstats;
9854518e	25	int padattr;
1da177e4 LT	26	void * xstats;
	27	int xstats_len;
	28	struct tc_stats tc_stats;
	29	};
	30
8aae218f	31	int gnet_stats_start_copy(struct sk_buff skb, int type, spinlock_t lock,
9854518e	32	struct gnet_dump *d, int padattr);
8aae218f JP	33
	34	int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
	35	int tc_stats_type, int xstats_type,
9854518e ND	36	spinlock_t lock, struct gnet_dump d,
9854518e ND	37	int padattr);
1da177e4	38
edb09eb1 ED	39	int gnet_stats_copy_basic(const seqcount_t *running,
edb09eb1 ED	40	struct gnet_dump *d,
22e0f8b9	41	struct gnet_stats_basic_cpu __percpu *cpu,
8aae218f	42	struct gnet_stats_basic_packed *b);
edb09eb1 ED	43	void __gnet_stats_copy_basic(const seqcount_t *running,
edb09eb1 ED	44	struct gnet_stats_basic_packed *bstats,
22e0f8b9 JF	45	struct gnet_stats_basic_cpu __percpu *cpu,
22e0f8b9 JF	46	struct gnet_stats_basic_packed *b);
5e111210 EC	47	int gnet_stats_copy_basic_hw(const seqcount_t *running,
	48	struct gnet_dump *d,
	49	struct gnet_stats_basic_cpu __percpu *cpu,
	50	struct gnet_stats_basic_packed *b);
8aae218f	51	int gnet_stats_copy_rate_est(struct gnet_dump *d,
1c0d32fd	52	struct net_rate_estimator __rcu **ptr);
64015853	53	int gnet_stats_copy_queue(struct gnet_dump *d,
b0ab6f92 JF	54	struct gnet_stats_queue __percpu *cpu_q,
b0ab6f92 JF	55	struct gnet_stats_queue *q, __u32 qlen);
b01ac095 JF	56	void __gnet_stats_copy_queue(struct gnet_stats_queue *qstats,
	57	const struct gnet_stats_queue __percpu *cpu_q,
	58	const struct gnet_stats_queue *q, __u32 qlen);
8aae218f JP	59	int gnet_stats_copy_app(struct gnet_dump d, void st, int len);
	60
	61	int gnet_stats_finish_copy(struct gnet_dump *d);
	62
	63	int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
22e0f8b9	64	struct gnet_stats_basic_cpu __percpu *cpu_bstats,
1c0d32fd	65	struct net_rate_estimator __rcu **rate_est,
51a9f5ae	66	spinlock_t *lock,
edb09eb1	67	seqcount_t running, struct nlattr opt);
1c0d32fd	68	void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
8aae218f	69	int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
22e0f8b9	70	struct gnet_stats_basic_cpu __percpu *cpu_bstats,
1c0d32fd	71	struct net_rate_estimator __rcu **ptr,
51a9f5ae	72	spinlock_t *lock,
edb09eb1	73	seqcount_t running, struct nlattr opt);
1c0d32fd ED	74	bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
	75	bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
	76	struct gnet_stats_rate_est64 *sample);
1da177e4	77	#endif