events/skb.h

   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);
  14 DEFINE_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  */
  24 TRACE_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
  54 TRACE_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
  73 TRACE_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>