linux-stable/include/net/psample.h
Roi Dayan beb7f2de57 psample: Add a fwd declaration for skbuff
Without this there is a warning if source files include psample.h
before skbuff.h or doesn't include it at all.

Fixes: 6ae0a62861 ("net: Introduce psample, a new genetlink channel for packet sampling")
Signed-off-by: Roi Dayan <roid@nvidia.com>
Link: https://lore.kernel.org/r/20210808065242.1522535-1-roid@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-08-09 15:34:21 -07:00

51 lines
1.1 KiB
C

/* 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 */