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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 | ||
10 | struct gnet_stats_basic_cpu { | |
11 | struct gnet_stats_basic_packed bstats; | |
12 | struct u64_stats_sync syncp; | |
13 | }; | |
14 | ||
15 | struct net_rate_estimator; | |
16 | ||
17 | struct 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 | ||
31 | int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock, | |
32 | struct gnet_dump *d, int padattr); | |
33 | ||
34 | int 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 | ||
39 | int 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); | |
43 | void __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); | |
47 | int gnet_stats_copy_rate_est(struct gnet_dump *d, | |
48 | struct net_rate_estimator __rcu **ptr); | |
49 | int gnet_stats_copy_queue(struct gnet_dump *d, | |
50 | struct gnet_stats_queue __percpu *cpu_q, | |
51 | struct gnet_stats_queue *q, __u32 qlen); | |
52 | int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len); | |
53 | ||
54 | int gnet_stats_finish_copy(struct gnet_dump *d); | |
55 | ||
56 | int gen_new_estimator(struct gnet_stats_basic_packed *bstats, | |
57 | struct gnet_stats_basic_cpu __percpu *cpu_bstats, | |
58 | struct net_rate_estimator __rcu **rate_est, | |
59 | spinlock_t *stats_lock, | |
60 | seqcount_t *running, struct nlattr *opt); | |
61 | void gen_kill_estimator(struct net_rate_estimator __rcu **ptr); | |
62 | int gen_replace_estimator(struct gnet_stats_basic_packed *bstats, | |
63 | struct gnet_stats_basic_cpu __percpu *cpu_bstats, | |
64 | struct net_rate_estimator __rcu **ptr, | |
65 | spinlock_t *stats_lock, | |
66 | seqcount_t *running, struct nlattr *opt); | |
67 | bool gen_estimator_active(struct net_rate_estimator __rcu **ptr); | |
68 | bool gen_estimator_read(struct net_rate_estimator __rcu **ptr, | |
69 | struct gnet_stats_rate_est64 *sample); | |
70 | #endif |