include/trace/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, struct sock *rx_sk),
  28
  29         TP_ARGS(skb, location, reason, rx_sk),
  30
  31         TP_STRUCT__entry(
  32                 __field(void *,         skbaddr)
  33                 __field(void *,         location)
  34                 __field(void *,         rx_sk)
  35                 __field(unsigned short, protocol)
  36                 __field(enum skb_drop_reason,   reason)
  37         ),
  38
  39         TP_fast_assign(
  40                 __entry->skbaddr = skb;
  41                 __entry->location = location;
  42                 __entry->rx_sk = rx_sk;
  43                 __entry->protocol = ntohs(skb->protocol);
  44                 __entry->reason = reason;
  45         ),
  46
  47         TP_printk("skbaddr=%p rx_sk=%p protocol=%u location=%pS reason: %s",
  48                   __entry->skbaddr, __entry->rx_sk, __entry->protocol,
  49                   __entry->location,
  50                   __print_symbolic(__entry->reason,
  51                                    DEFINE_DROP_REASON(FN, FNe)))
  52 );
  53
  54 #undef FN
  55 #undef FNe
  56
  57 TRACE_EVENT(consume_skb,
  58
  59         TP_PROTO(struct sk_buff *skb, void *location),
  60
  61         TP_ARGS(skb, location),
  62
  63         TP_STRUCT__entry(
  64                 __field(        void *, skbaddr)
  65                 __field(        void *, location)
  66         ),
  67
  68         TP_fast_assign(
  69                 __entry->skbaddr = skb;
  70                 __entry->location = location;
  71         ),
  72
  73         TP_printk("skbaddr=%p location=%pS", __entry->skbaddr, __entry->location)
  74 );
  75
  76 TRACE_EVENT(skb_copy_datagram_iovec,
  77
  78         TP_PROTO(const struct sk_buff *skb, int len),
  79
  80         TP_ARGS(skb, len),
  81
  82         TP_STRUCT__entry(
  83                 __field(        const void *,           skbaddr         )
  84                 __field(        int,                    len             )
  85         ),
  86
  87         TP_fast_assign(
  88                 __entry->skbaddr = skb;
  89                 __entry->len = len;
  90         ),
  91
  92         TP_printk("skbaddr=%p len=%d", __entry->skbaddr, __entry->len)
  93 );
  94
  95 #endif /* _TRACE_SKB_H */
  96
  97 /* This part must be outside protection */
  98 #include <trace/define_trace.h>