From 50426b5925ff0d7f47c20e6886047f1bb6245901 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Mon, 3 Dec 2012 23:56:40 +0000 Subject: 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 Cc: Stephen Hemminger Cc: "David S. Miller" Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- net/bridge/br_sysfs_if.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'net/bridge/br_sysfs_if.c') 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 }; -- cgit v1.2.3-59-g8ed1b