1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NET_PSAMPLE_H
3 #define __NET_PSAMPLE_H
4
5 #include <uapi/linux/psample.h>
6 #include <linux/list.h>
7
8 struct psample_group {
9 struct list_head list;
10 struct net *net;
11 u32 group_num;
12 u32 refcount;
13 u32 seq;
14 struct rcu_head rcu;
15 };
16
17 struct psample_metadata {
18 u32 trunc_size;
19 int in_ifindex;
20 int out_ifindex;
21 u16 out_tc;
22 u64 out_tc_occ; /* bytes */
23 u64 latency; /* nanoseconds */
24 u8 out_tc_valid:1,
25 out_tc_occ_valid:1,
26 latency_valid:1,
27 unused:5;
28 };
29
30 struct psample_group *psample_group_get(struct net *net, u32 group_num);
31 void psample_group_take(struct psample_group *group);
32 void psample_group_put(struct psample_group *group);
33
34 struct sk_buff;
35
36 #if IS_ENABLED(CONFIG_PSAMPLE)
37
38 void psample_sample_packet(struct psample_group *group, struct sk_buff *skb,
39 u32 sample_rate, const struct psample_metadata *md);
40
41 #else
42
psample_sample_packet(struct psample_group * group,struct sk_buff * skb,u32 sample_rate,const struct psample_metadata * md)43 static inline void psample_sample_packet(struct psample_group *group,
44 struct sk_buff *skb, u32 sample_rate,
45 const struct psample_metadata *md)
46 {
47 }
48
49 #endif
50
51 #endif /* __NET_PSAMPLE_H */
52