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07e1a5809b
Extend psample to report the following attributes when available: * Output traffic class as a 16-bit value * Output traffic class occupancy in bytes as a 64-bit value * End-to-end latency of the packet in nanoseconds resolution * Software timestamp in nanoseconds resolution (always available) * Packet's protocol. Needed for packet dissection in user space (always available) Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
49 lines
1 KiB
C
49 lines
1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_PSAMPLE_H
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#define __NET_PSAMPLE_H
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#include <uapi/linux/psample.h>
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#include <linux/list.h>
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struct psample_group {
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struct list_head list;
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struct net *net;
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u32 group_num;
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u32 refcount;
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u32 seq;
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struct rcu_head rcu;
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};
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struct psample_metadata {
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u32 trunc_size;
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int in_ifindex;
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int out_ifindex;
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u16 out_tc;
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u64 out_tc_occ; /* bytes */
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u64 latency; /* nanoseconds */
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u8 out_tc_valid:1,
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out_tc_occ_valid:1,
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latency_valid:1,
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unused:5;
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};
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struct psample_group *psample_group_get(struct net *net, u32 group_num);
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void psample_group_take(struct psample_group *group);
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void psample_group_put(struct psample_group *group);
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#if IS_ENABLED(CONFIG_PSAMPLE)
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void psample_sample_packet(struct psample_group *group, struct sk_buff *skb,
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u32 sample_rate, const struct psample_metadata *md);
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#else
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static inline void psample_sample_packet(struct psample_group *group,
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struct sk_buff *skb, u32 sample_rate,
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const struct psample_metadata *md)
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{
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}
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#endif
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#endif /* __NET_PSAMPLE_H */
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