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authorAmerigo Wang <amwang@redhat.com>2012-12-03 23:56:40 +0000
committerDavid S. Miller <davem@davemloft.net>2012-12-05 16:01:27 -0500
commit50426b5925ff0d7f47c20e6886047f1bb6245901 (patch)
tree9a30b4f743be503bcd192784c0e52178d29f3734 /net/bridge/br_sysfs_if.c
parenta573ea56a9b014e3ab09c44ccb659ba6d538b81e (diff)
bridge: implement multicast fast leave
V2: make the toggle per-port Fast leave allows bridge to immediately stops the multicast traffic on the port receives IGMP Leave when IGMP snooping is enabled, no timeouts are observed. Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Stephen Hemminger <shemminger@vyatta.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge/br_sysfs_if.c')
-rw-r--r--net/bridge/br_sysfs_if.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/bridge/br_sysfs_if.c b/net/bridge/br_sysfs_if.c
index 7ff95ba21982..dc484ace0be3 100644
--- a/net/bridge/br_sysfs_if.c
+++ b/net/bridge/br_sysfs_if.c
@@ -172,6 +172,25 @@ static int store_multicast_router(struct net_bridge_port *p,
}
static BRPORT_ATTR(multicast_router, S_IRUGO | S_IWUSR, show_multicast_router,
store_multicast_router);
+
+static ssize_t show_multicast_fast_leave(struct net_bridge_port *p,
+ char *buf)
+{
+ return sprintf(buf, "%d\n", p->multicast_fast_leave);
+}
+
+static int store_multicast_fast_leave(struct net_bridge_port *p,
+ unsigned long v)
+{
+ if (p->br->multicast_disabled)
+ return -EINVAL;
+
+ p->multicast_fast_leave = !!v;
+ return 0;
+}
+
+static BRPORT_ATTR(multicast_fast_leave, S_IRUGO | S_IWUSR,
+ show_multicast_fast_leave, store_multicast_fast_leave);
#endif
static const struct brport_attribute *brport_attrs[] = {
@@ -195,6 +214,7 @@ static const struct brport_attribute *brport_attrs[] = {
&brport_attr_root_block,
#ifdef CONFIG_BRIDGE_IGMP_SNOOPING
&brport_attr_multicast_router,
+ &brport_attr_multicast_fast_leave,
#endif
NULL
};