1/* SPDX-License-Identifier: GPL-2.0 */
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
10struct gnet_stats_basic_cpu {
11 struct gnet_stats_basic_packed bstats;
12 struct u64_stats_sync syncp;
13} __aligned(2 * sizeof(u64));
14
15struct net_rate_estimator;
16
17struct gnet_dump {
18 spinlock_t * lock;
19 struct sk_buff * skb;
20 struct nlattr * tail;
21
22 /* Backward compatibility */
23 int compat_tc_stats;
24 int compat_xstats;
25 int padattr;
26 void * xstats;
27 int xstats_len;
28 struct tc_stats tc_stats;
29};
30
31int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
32 struct gnet_dump *d, int padattr);
33
34int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
35 int tc_stats_type, int xstats_type,
36 spinlock_t *lock, struct gnet_dump *d,
37 int padattr);
38
39int gnet_stats_copy_basic(const seqcount_t *running,
40 struct gnet_dump *d,
41 struct gnet_stats_basic_cpu __percpu *cpu,
42 struct gnet_stats_basic_packed *b);
43void __gnet_stats_copy_basic(const seqcount_t *running,
44 struct gnet_stats_basic_packed *bstats,
45 struct gnet_stats_basic_cpu __percpu *cpu,
46 struct gnet_stats_basic_packed *b);
47int 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);
51int gnet_stats_copy_rate_est(struct gnet_dump *d,
52 struct net_rate_estimator __rcu **ptr);
53int gnet_stats_copy_queue(struct gnet_dump *d,
54 struct gnet_stats_queue __percpu *cpu_q,
55 struct gnet_stats_queue *q, __u32 qlen);
56void __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);
59int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
60
61int gnet_stats_finish_copy(struct gnet_dump *d);
62
63int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
64 struct gnet_stats_basic_cpu __percpu *cpu_bstats,
65 struct net_rate_estimator __rcu **rate_est,
66 spinlock_t *lock,
67 seqcount_t *running, struct nlattr *opt);
68void gen_kill_estimator(struct net_rate_estimator __rcu **ptr);
69int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
70 struct gnet_stats_basic_cpu __percpu *cpu_bstats,
71 struct net_rate_estimator __rcu **ptr,
72 spinlock_t *lock,
73 seqcount_t *running, struct nlattr *opt);
74bool gen_estimator_active(struct net_rate_estimator __rcu **ptr);
75bool gen_estimator_read(struct net_rate_estimator __rcu **ptr,
76 struct gnet_stats_rate_est64 *sample);
77#endif
78