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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_PSAMPLE_H
#define __NET_PSAMPLE_H
#include <uapi/linux/psample.h>
#include <linux/list.h>
struct psample_group {
struct list_head list;
struct net *net;
u32 group_num;
u32 refcount;
u32 seq;
struct rcu_head rcu;
};
struct psample_metadata {
u32 trunc_size;
int in_ifindex;
int out_ifindex;
u16 out_tc;
u64 out_tc_occ; /* bytes */
u64 latency; /* nanoseconds */
u8 out_tc_valid:1,
out_tc_occ_valid:1,
latency_valid:1,
rate_as_probability:1,
unused:4;
const u8 *user_cookie;
u32 user_cookie_len;
};
struct psample_group *psample_group_get(struct net *net, u32 group_num);
void psample_group_take(struct psample_group *group);
void psample_group_put(struct psample_group *group);
struct sk_buff;
#if IS_ENABLED(CONFIG_PSAMPLE)
void psample_sample_packet(struct psample_group *group,
const struct sk_buff *skb, u32 sample_rate,
const struct psample_metadata *md);
#else
static inline void psample_sample_packet(struct psample_group *group,
const struct sk_buff *skb,
u32 sample_rate,
const struct psample_metadata *md)
{
}
#endif
#endif /* __NET_PSAMPLE_H */
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