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authorIdo Schimmel <idosch@mellanox.com>2017-05-26 09:37:24 +0300
committerDavid S. Miller <davem@davemloft.net>2017-05-26 22:18:44 +0300
commit9341b988e606f951df57d15569a425c6c74b945e (patch)
tree40b8cad55422d227854490ca6442e2382757cb87 /include/linux/if_bridge.h
parent1f51445af35e8477027d87ca015a10257b13f5a2 (diff)
downloadlinux-9341b988e606f951df57d15569a425c6c74b945e.tar.xz
bridge: Export multicast enabled state
During enslavement to a bridge, after the CHANGEUPPER is sent, the multicast enabled state of the bridge isn't propagated down to the offloading driver unless it's changed. This patch allows such drivers to query the multicast enabled state from the bridge, so that they'll be able to correctly configure their flood tables during port enslavement. In case multicast is disabled, unregistered multicast packets can be treated as broadcast and be flooded through all the bridge ports. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_bridge.h')
-rw-r--r--include/linux/if_bridge.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index d6cd103eb165..3cd18ac0697f 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -62,6 +62,7 @@ int br_multicast_list_adjacent(struct net_device *dev,
struct list_head *br_ip_list);
bool br_multicast_has_querier_anywhere(struct net_device *dev, int proto);
bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
+bool br_multicast_enabled(const struct net_device *dev);
#else
static inline int br_multicast_list_adjacent(struct net_device *dev,
struct list_head *br_ip_list)
@@ -78,6 +79,10 @@ static inline bool br_multicast_has_querier_adjacent(struct net_device *dev,
{
return false;
}
+static inline bool br_multicast_enabled(const struct net_device *dev)
+{
+ return false;
+}
#endif
#if IS_ENABLED(CONFIG_BRIDGE) && IS_ENABLED(CONFIG_BRIDGE_VLAN_FILTERING)