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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 | ||
50dc9a85 AD |
10 | /* Throughput stats. |
11 | * Must be initialized beforehand with gnet_stats_basic_sync_init(). | |
12 | * | |
13 | * If no reads can ever occur parallel to writes (e.g. stack-allocated | |
14 | * bstats), then the internal stat values can be written to and read | |
15 | * from directly. Otherwise, use _bstats_set/update() for writes and | |
16 | * gnet_stats_add_basic() for reads. | |
17 | */ | |
18 | struct gnet_stats_basic_sync { | |
19 | u64_stats_t bytes; | |
20 | u64_stats_t packets; | |
22e0f8b9 | 21 | struct u64_stats_sync syncp; |
001c96db | 22 | } __aligned(2 * sizeof(u64)); |
22e0f8b9 | 23 | |
1c0d32fd ED |
24 | struct net_rate_estimator; |
25 | ||
fd2c3ef7 | 26 | struct gnet_dump { |
1da177e4 LT |
27 | spinlock_t * lock; |
28 | struct sk_buff * skb; | |
1e90474c | 29 | struct nlattr * tail; |
1da177e4 | 30 | |
25985edc | 31 | /* Backward compatibility */ |
1da177e4 LT |
32 | int compat_tc_stats; |
33 | int compat_xstats; | |
9854518e | 34 | int padattr; |
1da177e4 LT |
35 | void * xstats; |
36 | int xstats_len; | |
37 | struct tc_stats tc_stats; | |
38 | }; | |
39 | ||
50dc9a85 | 40 | void gnet_stats_basic_sync_init(struct gnet_stats_basic_sync *b); |
8aae218f | 41 | int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock, |
9854518e | 42 | struct gnet_dump *d, int padattr); |
8aae218f JP |
43 | |
44 | int gnet_stats_start_copy_compat(struct sk_buff *skb, int type, | |
45 | int tc_stats_type, int xstats_type, | |
9854518e ND |
46 | spinlock_t *lock, struct gnet_dump *d, |
47 | int padattr); | |
1da177e4 | 48 | |
29cbcd85 | 49 | int gnet_stats_copy_basic(struct gnet_dump *d, |
50dc9a85 | 50 | struct gnet_stats_basic_sync __percpu *cpu, |
29cbcd85 AD |
51 | struct gnet_stats_basic_sync *b, bool running); |
52 | void gnet_stats_add_basic(struct gnet_stats_basic_sync *bstats, | |
50dc9a85 | 53 | struct gnet_stats_basic_sync __percpu *cpu, |
29cbcd85 AD |
54 | struct gnet_stats_basic_sync *b, bool running); |
55 | int gnet_stats_copy_basic_hw(struct gnet_dump *d, | |
50dc9a85 | 56 | struct gnet_stats_basic_sync __percpu *cpu, |
29cbcd85 | 57 | struct gnet_stats_basic_sync *b, bool running); |
8aae218f | 58 | int gnet_stats_copy_rate_est(struct gnet_dump *d, |
1c0d32fd | 59 | struct net_rate_estimator __rcu **ptr); |
64015853 | 60 | int gnet_stats_copy_queue(struct gnet_dump *d, |
b0ab6f92 JF |
61 | struct gnet_stats_queue __percpu *cpu_q, |
62 | struct gnet_stats_queue *q, __u32 qlen); | |
448e163f SAS |
63 | void gnet_stats_add_queue(struct gnet_stats_queue *qstats, |
64 | const struct gnet_stats_queue __percpu *cpu_q, | |
65 | const struct gnet_stats_queue *q); | |
8aae218f JP |
66 | int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len); |
67 | ||
68 | int gnet_stats_finish_copy(struct gnet_dump *d); | |
69 | ||
50dc9a85 AD |
70 | int gen_new_estimator(struct gnet_stats_basic_sync *bstats, |
71 | struct gnet_stats_basic_sync __percpu *cpu_bstats, | |
1c0d32fd | 72 | struct net_rate_estimator __rcu **rate_est, |
51a9f5ae | 73 | spinlock_t *lock, |
29cbcd85 | 74 | bool running, struct nlattr *opt); |
1c0d32fd | 75 | void gen_kill_estimator(struct net_rate_estimator __rcu **ptr); |
50dc9a85 AD |
76 | int gen_replace_estimator(struct gnet_stats_basic_sync *bstats, |
77 | struct gnet_stats_basic_sync __percpu *cpu_bstats, | |
1c0d32fd | 78 | struct net_rate_estimator __rcu **ptr, |
51a9f5ae | 79 | spinlock_t *lock, |
29cbcd85 | 80 | bool running, struct nlattr *opt); |
1c0d32fd ED |
81 | bool gen_estimator_active(struct net_rate_estimator __rcu **ptr); |
82 | bool gen_estimator_read(struct net_rate_estimator __rcu **ptr, | |
83 | struct gnet_stats_rate_est64 *sample); | |
1da177e4 | 84 | #endif |