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authorRoopa Prabhu <roopa@cumulusnetworks.com>2017-08-29 13:16:57 -0700
committerDavid S. Miller <davem@davemloft.net>2017-08-29 14:49:45 -0700
commitb74fd306ef2d48781e807dd506cca818bb83d749 (patch)
tree1b308352cee29a80363c6f9c58630aa5445bb19a /net
parenta7043f65f62c1799df15a6675b28e355939f8c06 (diff)
downloadlinux-b74fd306ef2d48781e807dd506cca818bb83d749.tar.bz2
bridge: fdb add and delete tracepoints
A few useful tracepoints to trace bridge forwarding database updates. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/bridge/br_fdb.c7
-rw-r--r--net/core/net-traces.c6
2 files changed, 13 insertions, 0 deletions
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index a79b648aac88..be5e1da6d824 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -25,6 +25,7 @@
#include <asm/unaligned.h>
#include <linux/if_vlan.h>
#include <net/switchdev.h>
+#include <trace/events/bridge.h>
#include "br_private.h"
static struct kmem_cache *br_fdb_cache __read_mostly;
@@ -171,6 +172,8 @@ static void fdb_del_hw_addr(struct net_bridge *br, const unsigned char *addr)
static void fdb_delete(struct net_bridge *br, struct net_bridge_fdb_entry *f)
{
+ trace_fdb_delete(br, f);
+
if (f->is_static)
fdb_del_hw_addr(br, f->addr.addr);
@@ -870,6 +873,8 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_bridge *br = NULL;
int err = 0;
+ trace_br_fdb_add(ndm, dev, addr, vid, nlh_flags);
+
if (!(ndm->ndm_state & (NUD_PERMANENT|NUD_NOARP|NUD_REACHABLE))) {
pr_info("bridge: RTM_NEWNEIGH with invalid state %#x\n", ndm->ndm_state);
return -EINVAL;
@@ -1066,6 +1071,8 @@ int br_fdb_external_learn_add(struct net_bridge *br, struct net_bridge_port *p,
bool modified = false;
int err = 0;
+ trace_br_fdb_external_learn_add(br, p, addr, vid);
+
spin_lock_bh(&br->hash_lock);
head = &br->hash[br_mac_hash(addr, vid)];
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index 4f1468ccd056..4a0292c97070 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -37,6 +37,12 @@
#include <trace/events/fib6.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(fib6_table_lookup);
#endif
+#if IS_ENABLED(CONFIG_BRIDGE)
+#include <trace/events/bridge.h>
+EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_add);
+EXPORT_TRACEPOINT_SYMBOL_GPL(br_fdb_external_learn_add);
+EXPORT_TRACEPOINT_SYMBOL_GPL(fdb_delete);
+#endif
EXPORT_TRACEPOINT_SYMBOL_GPL(kfree_skb);