include/trace/events/xdp.h

   1 #undef TRACE_SYSTEM
   2 #define TRACE_SYSTEM xdp
   3
   4 #if !defined(_TRACE_XDP_H) || defined(TRACE_HEADER_MULTI_READ)
   5 #define _TRACE_XDP_H
   6
   7 #include <linux/netdevice.h>
   8 #include <linux/filter.h>
   9 #include <linux/tracepoint.h>
  10
  11 #define __XDP_ACT_MAP(FN)       \
  12         FN(ABORTED)             \
  13         FN(DROP)                \
  14         FN(PASS)                \
  15         FN(TX)                  \
  16         FN(REDIRECT)
  17
  18 #define __XDP_ACT_TP_FN(x)      \
  19         TRACE_DEFINE_ENUM(XDP_##x);
  20 #define __XDP_ACT_SYM_FN(x)     \
  21         { XDP_##x, #x },
  22 #define __XDP_ACT_SYM_TAB       \
  23         __XDP_ACT_MAP(__XDP_ACT_SYM_FN) { -1, 0 }
  24 __XDP_ACT_MAP(__XDP_ACT_TP_FN)
  25
  26 TRACE_EVENT(xdp_exception,
  27
  28         TP_PROTO(const struct net_device *dev,
  29                  const struct bpf_prog *xdp, u32 act),
  30
  31         TP_ARGS(dev, xdp, act),
  32
  33         TP_STRUCT__entry(
  34                 __string(name, dev->name)
  35                 __array(u8, prog_tag, 8)
  36                 __field(u32, act)
  37         ),
  38
  39         TP_fast_assign(
  40                 BUILD_BUG_ON(sizeof(__entry->prog_tag) != sizeof(xdp->tag));
  41                 memcpy(__entry->prog_tag, xdp->tag, sizeof(xdp->tag));
  42                 __assign_str(name, dev->name);
  43                 __entry->act = act;
  44         ),
  45
  46         TP_printk("prog=%s device=%s action=%s",
  47                   __print_hex_str(__entry->prog_tag, 8),
  48                   __get_str(name),
  49                   __print_symbolic(__entry->act, __XDP_ACT_SYM_TAB))
  50 );
  51
  52 TRACE_EVENT(xdp_redirect,
  53
  54         TP_PROTO(const struct net_device *from,
  55                  const struct net_device *to,
  56                  const struct bpf_prog *xdp, u32 act),
  57
  58         TP_ARGS(from, to, xdp, act),
  59
  60         TP_STRUCT__entry(
  61                 __string(name_from, from->name)
  62                 __string(name_to, to->name)
  63                 __array(u8, prog_tag, 8)
  64                 __field(u32, act)
  65         ),
  66
  67         TP_fast_assign(
  68                 BUILD_BUG_ON(sizeof(__entry->prog_tag) != sizeof(xdp->tag));
  69                 memcpy(__entry->prog_tag, xdp->tag, sizeof(xdp->tag));
  70                 __assign_str(name_from, from->name);
  71                 __assign_str(name_to, to->name);
  72                 __entry->act = act;
  73         ),
  74
  75         TP_printk("prog=%s from=%s to=%s action=%s",
  76                   __print_hex_str(__entry->prog_tag, 8),
  77                   __get_str(name_from), __get_str(name_to),
  78                   __print_symbolic(__entry->act, __XDP_ACT_SYM_TAB))
  79 );
  80 #endif /* _TRACE_XDP_H */
  81
  82 #include <trace/define_trace.h>