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authorKoki Sanagi <sanagi.koki@jp.fujitsu.com>2010-08-23 05:45:02 -0400
committerFrederic Weisbecker <fweisbec@gmail.com>2010-09-07 11:51:33 -0400
commitcf66ba58b5cb8b1526e9dd2fb96ff8db048d4d44 (patch)
treee9adada8f043f162dd1fea6ebb9091c66fee8eca /include/trace
parent3e4b10d7a4d2a78af64f8096dc7cdb3bebd65adb (diff)
netdev: Add tracepoints to netdev layer
This patch adds tracepoint to dev_queue_xmit, dev_hard_start_xmit, netif_rx and netif_receive_skb. These tracepoints help you to monitor network driver's input/output. <idle>-0 [001] 112447.902030: netif_rx: dev=eth1 skbaddr=f3ef0900 len=84 <idle>-0 [001] 112447.902039: netif_receive_skb: dev=eth1 skbaddr=f3ef0900 len=84 sshd-6828 [000] 112447.903257: net_dev_queue: dev=eth4 skbaddr=f3fca538 len=226 sshd-6828 [000] 112447.903260: net_dev_xmit: dev=eth4 skbaddr=f3fca538 len=226 rc=0 Signed-off-by: Koki Sanagi <sanagi.koki@jp.fujitsu.com> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Neil Horman <nhorman@tuxdriver.com> Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Cc: Kaneshige Kenji <kaneshige.kenji@jp.fujitsu.com> Cc: Izumo Taku <izumi.taku@jp.fujitsu.com> Cc: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Scott Mcmillan <scott.a.mcmillan@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Eric Dumazet <eric.dumazet@gmail.com> LKML-Reference: <4C72431E.3000901@jp.fujitsu.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/net.h82
1 files changed, 82 insertions, 0 deletions
diff --git a/include/trace/events/net.h b/include/trace/events/net.h
new file mode 100644
index 000000000000..5f247f5ffc56
--- /dev/null
+++ b/include/trace/events/net.h
@@ -0,0 +1,82 @@
1#undef TRACE_SYSTEM
2#define TRACE_SYSTEM net
3
4#if !defined(_TRACE_NET_H) || defined(TRACE_HEADER_MULTI_READ)
5#define _TRACE_NET_H
6
7#include <linux/skbuff.h>
8#include <linux/netdevice.h>
9#include <linux/ip.h>
10#include <linux/tracepoint.h>
11
12TRACE_EVENT(net_dev_xmit,
13
14 TP_PROTO(struct sk_buff *skb,
15 int rc),
16
17 TP_ARGS(skb, rc),
18
19 TP_STRUCT__entry(
20 __field( void *, skbaddr )
21 __field( unsigned int, len )
22 __field( int, rc )
23 __string( name, skb->dev->name )
24 ),
25
26 TP_fast_assign(
27 __entry->skbaddr = skb;
28 __entry->len = skb->len;
29 __entry->rc = rc;
30 __assign_str(name, skb->dev->name);
31 ),
32
33 TP_printk("dev=%s skbaddr=%p len=%u rc=%d",
34 __get_str(name), __entry->skbaddr, __entry->len, __entry->rc)
35);
36
37DECLARE_EVENT_CLASS(net_dev_template,
38
39 TP_PROTO(struct sk_buff *skb),
40
41 TP_ARGS(skb),
42
43 TP_STRUCT__entry(
44 __field( void *, skbaddr )
45 __field( unsigned int, len )
46 __string( name, skb->dev->name )
47 ),
48
49 TP_fast_assign(
50 __entry->skbaddr = skb;
51 __entry->len = skb->len;
52 __assign_str(name, skb->dev->name);
53 ),
54
55 TP_printk("dev=%s skbaddr=%p len=%u",
56 __get_str(name), __entry->skbaddr, __entry->len)
57)
58
59DEFINE_EVENT(net_dev_template, net_dev_queue,
60
61 TP_PROTO(struct sk_buff *skb),
62
63 TP_ARGS(skb)
64);
65
66DEFINE_EVENT(net_dev_template, netif_receive_skb,
67
68 TP_PROTO(struct sk_buff *skb),
69
70 TP_ARGS(skb)
71);
72
73DEFINE_EVENT(net_dev_template, netif_rx,
74
75 TP_PROTO(struct sk_buff *skb),
76
77 TP_ARGS(skb)
78);
79#endif /* _TRACE_NET_H */
80
81/* This part must be outside protection */
82#include <trace/define_trace.h>