| 1 |
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| 2 | #ifndef __NET_PSAMPLE_H
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| 3 | #define __NET_PSAMPLE_H
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| 4 |
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| 5 | #include <uapi/linux/psample.h>
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| 6 | #include <linux/list.h>
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| 7 |
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| 8 | struct psample_group {
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| 9 | struct list_head list;
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| 10 | struct net *net;
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| 11 | u32 group_num;
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| 12 | u32 refcount;
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| 13 | u32 seq;
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| 14 | struct rcu_head rcu;
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| 15 | };
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| 16 |
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| 17 | struct psample_metadata {
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| 18 | u32 trunc_size;
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| 19 | int in_ifindex;
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| 20 | int out_ifindex;
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| 21 | u16 out_tc;
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| 22 | u64 out_tc_occ;
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| 23 | u64 latency;
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| 24 | u8 out_tc_valid:1,
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| 25 | out_tc_occ_valid:1,
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| 26 | latency_valid:1,
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| 27 | rate_as_probability:1,
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| 28 | unused:4;
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| 29 | const u8 *user_cookie;
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| 30 | u32 user_cookie_len;
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| 31 | };
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| 32 |
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| 33 | struct psample_group *psample_group_get(struct net *net, u32 group_num);
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| 34 | void psample_group_take(struct psample_group *group);
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| 35 | void psample_group_put(struct psample_group *group);
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| 36 |
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| 37 | struct sk_buff;
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| 38 |
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| 39 | #if IS_ENABLED(CONFIG_PSAMPLE)
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| 40 |
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| 41 | void psample_sample_packet(struct psample_group *group,
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| 42 | const struct sk_buff *skb, u32 sample_rate,
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| 43 | const struct psample_metadata *md);
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| 44 |
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| 45 | #else
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| 46 |
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| 47 | static inline void psample_sample_packet(struct psample_group *group,
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| 48 | const struct sk_buff *skb,
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| 49 | u32 sample_rate,
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| 50 | const struct psample_metadata *md)
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| 51 | {
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| 52 | }
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| 53 |
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| 54 | #endif
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| 55 |
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| 56 | #endif
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