net: FIB tracepoints
A few useful tracepoints developing VRF driver.
Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/trace/events/fib.h b/include/trace/events/fib.h
new file mode 100644
index 0000000..4030f75
--- /dev/null
+++ b/include/trace/events/fib.h
@@ -0,0 +1,111 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fib
+
+#if !defined(_TRACE_FIB_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FIB_H
+
+#include <linux/skbuff.h>
+#include <linux/netdevice.h>
+#include <net/ip_fib.h>
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(fib_table_lookup,
+
+ TP_PROTO(int tb_id, const struct flowi4 *flp),
+
+ TP_ARGS(tb_id, flp),
+
+ TP_STRUCT__entry(
+ __field( int, tb_id )
+ __field( int, oif )
+ __field( int, iif )
+ __field( __u8, tos )
+ __field( __u8, scope )
+ __field( __u8, flags )
+ __array( __u8, src, 4 )
+ __array( __u8, dst, 4 )
+ ),
+
+ TP_fast_assign(
+ __be32 *p32;
+
+ __entry->tb_id = tb_id;
+ __entry->oif = flp->flowi4_oif;
+ __entry->iif = flp->flowi4_iif;
+ __entry->tos = flp->flowi4_tos;
+ __entry->scope = flp->flowi4_scope;
+ __entry->flags = flp->flowi4_flags;
+
+ p32 = (__be32 *) __entry->src;
+ *p32 = flp->saddr;
+
+ p32 = (__be32 *) __entry->dst;
+ *p32 = flp->daddr;
+ ),
+
+ TP_printk("table %d oif %d iif %d src %pI4 dst %pI4 tos %d scope %d flags %x",
+ __entry->tb_id, __entry->oif, __entry->iif,
+ __entry->src, __entry->dst, __entry->tos, __entry->scope,
+ __entry->flags)
+);
+
+TRACE_EVENT(fib_table_lookup_nh,
+
+ TP_PROTO(const struct fib_nh *nh),
+
+ TP_ARGS(nh),
+
+ TP_STRUCT__entry(
+ __string( name, nh->nh_dev->name)
+ __field( int, oif )
+ __array( __u8, src, 4 )
+ ),
+
+ TP_fast_assign(
+ __be32 *p32 = (__be32 *) __entry->src;
+
+ __assign_str(name, nh->nh_dev ? nh->nh_dev->name : "not set");
+ __entry->oif = nh->nh_oif;
+ *p32 = nh->nh_saddr;
+ ),
+
+ TP_printk("nexthop dev %s oif %d src %pI4",
+ __get_str(name), __entry->oif, __entry->src)
+);
+
+TRACE_EVENT(fib_validate_source,
+
+ TP_PROTO(const struct net_device *dev, const struct flowi4 *flp),
+
+ TP_ARGS(dev, flp),
+
+ TP_STRUCT__entry(
+ __string( name, dev->name )
+ __field( int, oif )
+ __field( int, iif )
+ __array( __u8, src, 4 )
+ __array( __u8, dst, 4 )
+ ),
+
+ TP_fast_assign(
+ __be32 *p32;
+
+ __assign_str(name, dev ? dev->name : "not set");
+ __entry->oif = flp->flowi4_oif;
+ __entry->iif = flp->flowi4_iif;
+
+ p32 = (__be32 *) __entry->src;
+ *p32 = flp->saddr;
+
+ p32 = (__be32 *) __entry->dst;
+ *p32 = flp->daddr;
+ ),
+
+ TP_printk("dev %s oif %d iif %d src %pI4 dst %pI4",
+ __get_str(name), __entry->oif, __entry->iif,
+ __entry->src, __entry->dst)
+);
+#endif /* _TRACE_FIB_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
