1/* SPDX-License-Identifier: GPL-2.0 */
2#undef TRACE_SYSTEM
3#define TRACE_SYSTEM skb
4
5#if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
6#define _TRACE_SKB_H
7
8#include <linux/skbuff.h>
9#include <linux/netdevice.h>
10#include <linux/tracepoint.h>
11
12#undef FN
13#define FN(reason)	TRACE_DEFINE_ENUM(SKB_DROP_REASON_##reason);
14DEFINE_DROP_REASON(FN, FN)
15
16#undef FN
17#undef FNe
18#define FN(reason)	{ SKB_DROP_REASON_##reason, #reason },
19#define FNe(reason)	{ SKB_DROP_REASON_##reason, #reason }
20
21/*
22 * Tracepoint for free an sk_buff:
23 */
24TRACE_EVENT(kfree_skb,
25
26	TP_PROTO(struct sk_buff *skb, void *location,
27		 enum skb_drop_reason reason),
28
29	TP_ARGS(skb, location, reason),
30
31	TP_STRUCT__entry(
32		__field(void *,		skbaddr)
33		__field(void *,		location)
34		__field(unsigned short,	protocol)
35		__field(enum skb_drop_reason,	reason)
36	),
37
38	TP_fast_assign(
39		__entry->skbaddr = skb;
40		__entry->location = location;
41		__entry->protocol = ntohs(skb->protocol);
42		__entry->reason = reason;
43	),
44
45	TP_printk("skbaddr=%p protocol=%u location=%pS reason: %s",
46		  __entry->skbaddr, __entry->protocol, __entry->location,
47		  __print_symbolic(__entry->reason,
48				   DEFINE_DROP_REASON(FN, FNe)))
49);
50
51#undef FN
52#undef FNe
53
54TRACE_EVENT(consume_skb,
55
56	TP_PROTO(struct sk_buff *skb, void *location),
57
58	TP_ARGS(skb, location),
59
60	TP_STRUCT__entry(
61		__field(	void *,	skbaddr)
62		__field(	void *,	location)
63	),
64
65	TP_fast_assign(
66		__entry->skbaddr = skb;
67		__entry->location = location;
68	),
69
70	TP_printk("skbaddr=%p location=%pS", __entry->skbaddr, __entry->location)
71);
72
73TRACE_EVENT(skb_copy_datagram_iovec,
74
75	TP_PROTO(const struct sk_buff *skb, int len),
76
77	TP_ARGS(skb, len),
78
79	TP_STRUCT__entry(
80		__field(	const void *,		skbaddr		)
81		__field(	int,			len		)
82	),
83
84	TP_fast_assign(
85		__entry->skbaddr = skb;
86		__entry->len = len;
87	),
88
89	TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
90);
91
92#endif /* _TRACE_SKB_H */
93
94/* This part must be outside protection */
95#include <trace/define_trace.h>
96