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| author | Amerigo Wang <amwang@redhat.com> | 2012-12-03 23:56:40 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-12-05 16:01:27 -0500 |
| commit | 50426b5925ff0d7f47c20e6886047f1bb6245901 (patch) | |
| tree | 9a30b4f743be503bcd192784c0e52178d29f3734 /net/bridge/br_sysfs_if.c | |
| parent | a573ea56a9b014e3ab09c44ccb659ba6d538b81e (diff) | |
| download | linux-50426b5925ff0d7f47c20e6886047f1bb6245901.tar.gz linux-50426b5925ff0d7f47c20e6886047f1bb6245901.tar.bz2 linux-50426b5925ff0d7f47c20e6886047f1bb6245901.zip | |
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.c | 20 |
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 }; |