| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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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; /* bytes */ |
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| 23 | u64 latency; /* nanoseconds */ |
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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 /* __NET_PSAMPLE_H */ |
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| 57 | |
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