[linux-block.git] / include / net / psample.h

/* 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,
	   unused:5;
};

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, struct sk_buff *skb,
			   u32 sample_rate, const struct psample_metadata *md);

#else

static inline void psample_sample_packet(struct psample_group *group,
					 struct sk_buff *skb, u32 sample_rate,
					 const struct psample_metadata *md)
{
}

#endif

#endif /* __NET_PSAMPLE_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
6ae0a628 YG	2	#ifndef __NET_PSAMPLE_H
	3	#define __NET_PSAMPLE_H
	4
	5	#include <uapi/linux/psample.h>
6ae0a628 YG	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;
dbf47a2a	14	struct rcu_head rcu;
6ae0a628 YG	15	};
6ae0a628 YG	16
a03e99d3 IS	17	struct psample_metadata {
	18	u32 trunc_size;
	19	int in_ifindex;
	20	int out_ifindex;
07e1a580 IS	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;
a03e99d3 IS	28	};
a03e99d3 IS	29
6ae0a628	30	struct psample_group psample_group_get(struct net net, u32 group_num);
4a5da47d	31	void psample_group_take(struct psample_group *group);
6ae0a628 YG	32	void psample_group_put(struct psample_group *group);
6ae0a628 YG	33
beb7f2de RD	34	struct sk_buff;
beb7f2de RD	35
6ae0a628 YG	36	#if IS_ENABLED(CONFIG_PSAMPLE)
	37
	38	void psample_sample_packet(struct psample_group group, struct sk_buff skb,
a03e99d3	39	u32 sample_rate, const struct psample_metadata *md);
6ae0a628 YG	40
	41	#else
	42
	43	static inline void psample_sample_packet(struct psample_group *group,
a03e99d3 IS	44	struct sk_buff *skb, u32 sample_rate,
a03e99d3 IS	45	const struct psample_metadata *md)
6ae0a628 YG	46	{
	47	}
	48
	49	#endif
	50
	51	#endif /* __NET_PSAMPLE_H */