xref: /linux/include/net/gen_stats.h (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 #ifndef __NET_GEN_STATS_H
2 #define __NET_GEN_STATS_H
3 
4 #include <linux/gen_stats.h>
5 #include <linux/socket.h>
6 #include <linux/rtnetlink.h>
7 #include <linux/pkt_sched.h>
8 
9 struct gnet_stats_basic_cpu {
10 	struct gnet_stats_basic_packed bstats;
11 	struct u64_stats_sync syncp;
12 };
13 
14 struct gnet_dump {
15 	spinlock_t *      lock;
16 	struct sk_buff *  skb;
17 	struct nlattr *   tail;
18 
19 	/* Backward compatibility */
20 	int               compat_tc_stats;
21 	int               compat_xstats;
22 	void *            xstats;
23 	int               xstats_len;
24 	struct tc_stats   tc_stats;
25 };
26 
27 int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
28 			  struct gnet_dump *d);
29 
30 int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
31 				 int tc_stats_type, int xstats_type,
32 				 spinlock_t *lock, struct gnet_dump *d);
33 
34 int gnet_stats_copy_basic(struct gnet_dump *d,
35 			  struct gnet_stats_basic_cpu __percpu *cpu,
36 			  struct gnet_stats_basic_packed *b);
37 void __gnet_stats_copy_basic(struct gnet_stats_basic_packed *bstats,
38 			     struct gnet_stats_basic_cpu __percpu *cpu,
39 			     struct gnet_stats_basic_packed *b);
40 int gnet_stats_copy_rate_est(struct gnet_dump *d,
41 			     const struct gnet_stats_basic_packed *b,
42 			     struct gnet_stats_rate_est64 *r);
43 int gnet_stats_copy_queue(struct gnet_dump *d,
44 			  struct gnet_stats_queue __percpu *cpu_q,
45 			  struct gnet_stats_queue *q, __u32 qlen);
46 int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
47 
48 int gnet_stats_finish_copy(struct gnet_dump *d);
49 
50 int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
51 		      struct gnet_stats_basic_cpu __percpu *cpu_bstats,
52 		      struct gnet_stats_rate_est64 *rate_est,
53 		      spinlock_t *stats_lock, struct nlattr *opt);
54 void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
55 			struct gnet_stats_rate_est64 *rate_est);
56 int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
57 			  struct gnet_stats_basic_cpu __percpu *cpu_bstats,
58 			  struct gnet_stats_rate_est64 *rate_est,
59 			  spinlock_t *stats_lock, struct nlattr *opt);
60 bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
61 			  const struct gnet_stats_rate_est64 *rate_est);
62 #endif
63