tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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=%p 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),
57
58 TP_ARGS(skb),
59
60 TP_STRUCT__entry(
61 __field( void *, skbaddr )
62 ),
63
64 TP_fast_assign(
65 __entry->skbaddr = skb;
66 ),
67
68 TP_printk("skbaddr=%p", __entry->skbaddr)
69);
70
71TRACE_EVENT(skb_copy_datagram_iovec,
72
73 TP_PROTO(const struct sk_buff *skb, int len),
74
75 TP_ARGS(skb, len),
76
77 TP_STRUCT__entry(
78 __field( const void *, skbaddr )
79 __field( int, len )
80 ),
81
82 TP_fast_assign(
83 __entry->skbaddr = skb;
84 __entry->len = len;
85 ),
86
87 TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
88);
89
90#endif /* _TRACE_SKB_H */
91
92/* This part must be outside protection */
93#include <trace/define_trace.h>