path: root/include/trace/events/xdp.h

#undef TRACE_SYSTEM
#define TRACE_SYSTEM xdp

#if !defined(_TRACE_XDP_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_XDP_H

#include <linux/netdevice.h>
#include <linux/filter.h>
#include <linux/tracepoint.h>

#define __XDP_ACT_MAP(FN)	\
	FN(ABORTED)		\
	FN(DROP)		\
	FN(PASS)		\
	FN(TX)			\
	FN(REDIRECT)

#define __XDP_ACT_TP_FN(x)	\
	TRACE_DEFINE_ENUM(XDP_##x);
#define __XDP_ACT_SYM_FN(x)	\
	{ XDP_##x, #x },
#define __XDP_ACT_SYM_TAB	\
	__XDP_ACT_MAP(__XDP_ACT_SYM_FN) { -1, 0 }
__XDP_ACT_MAP(__XDP_ACT_TP_FN)

TRACE_EVENT(xdp_exception,

	TP_PROTO(const struct net_device *dev,
		 const struct bpf_prog *xdp, u32 act),

	TP_ARGS(dev, xdp, act),

	TP_STRUCT__entry(
		__array(u8, prog_tag, 8)
		__field(u32, act)
		__field(int, ifindex)
	),

	TP_fast_assign(
		BUILD_BUG_ON(sizeof(__entry->prog_tag) != sizeof(xdp->tag));
		memcpy(__entry->prog_tag, xdp->tag, sizeof(xdp->tag));
		__entry->act		= act;
		__entry->ifindex	= dev->ifindex;
	),

	TP_printk("prog=%s action=%s ifindex=%d",
		  __print_hex_str(__entry->prog_tag, 8),
		  __print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
		  __entry->ifindex)
);

TRACE_EVENT(xdp_redirect,

	TP_PROTO(const struct net_device *dev,
		 const struct bpf_prog *xdp,
		 int to_index, int err),

	TP_ARGS(dev, xdp, to_index, err),

	TP_STRUCT__entry(
		__array(u8, prog_tag, 8)
		__field(u32, act)
		__field(int, ifindex)
		__field(int, to_index)
		__field(int, err)
	),

	TP_fast_assign(
		BUILD_BUG_ON(sizeof(__entry->prog_tag) != sizeof(xdp->tag));
		memcpy(__entry->prog_tag, xdp->tag, sizeof(xdp->tag));
		__entry->act		= XDP_REDIRECT;
		__entry->ifindex	= dev->ifindex;
		__entry->to_index	= to_index;
		__entry->err		= err;
	),

	TP_printk("prog=%s action=%s ifindex=%d to_index=%d err=%d",
		  __print_hex_str(__entry->prog_tag, 8),
		  __print_symbolic(__entry->act, __XDP_ACT_SYM_TAB),
		  __entry->ifindex, __entry->to_index,
		  __entry->err)
);
#endif /* _TRACE_XDP_H */

#include <trace/define_trace.h>