drivers/staging/lttng/instrumentation/events/lttng-module/skb.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM skb
   3
   4 #if !defined(_TRACE_SKB_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_SKB_H
   6
   7 #include <linux/skbuff.h>
   8 #include <linux/netdevice.h>
   9 #include <linux/tracepoint.h>
  10 #include <linux/version.h>
  11
  12 /*
  13  * Tracepoint for free an sk_buff:
  14  */
  15 TRACE_EVENT_MAP(kfree_skb,
  16
  17         skb_kfree,
  18
  19         TP_PROTO(struct sk_buff *skb, void *location),
  20
  21         TP_ARGS(skb, location),
  22
  23         TP_STRUCT__entry(
  24                 __field(        void *,         skbaddr         )
  25                 __field(        void *,         location        )
  26                 __field(        unsigned short, protocol        )
  27         ),
  28
  29         TP_fast_assign(
  30                 tp_assign(skbaddr, skb)
  31                 tp_assign(location, location)
  32                 tp_assign(protocol, ntohs(skb->protocol))
  33         ),
  34
  35         TP_printk("skbaddr=%p protocol=%u location=%p",
  36                 __entry->skbaddr, __entry->protocol, __entry->location)
  37 )
  38
  39 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
  40 TRACE_EVENT_MAP(consume_skb,
  41
  42         skb_consume,
  43
  44         TP_PROTO(struct sk_buff *skb),
  45
  46         TP_ARGS(skb),
  47
  48         TP_STRUCT__entry(
  49                 __field(        void *, skbaddr )
  50         ),
  51
  52         TP_fast_assign(
  53                 tp_assign(skbaddr, skb)
  54         ),
  55
  56         TP_printk("skbaddr=%p", __entry->skbaddr)
  57 )
  58 #endif
  59
  60 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32))
  61 TRACE_EVENT(skb_copy_datagram_iovec,
  62
  63         TP_PROTO(const struct sk_buff *skb, int len),
  64
  65         TP_ARGS(skb, len),
  66
  67         TP_STRUCT__entry(
  68                 __field(        const void *,           skbaddr         )
  69                 __field(        int,                    len             )
  70         ),
  71
  72         TP_fast_assign(
  73                 tp_assign(skbaddr, skb)
  74                 tp_assign(len, len)
  75         ),
  76
  77         TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
  78 )
  79 #endif
  80
  81 #endif /* _TRACE_SKB_H */
  82
  83 /* This part must be outside protection */
  84 #include "../../../probes/define_trace.h"