bridge: add new brport flag LEARNING_SYNC

This policy flag controls syncing of learned FDB entries to bridge's FDB.  If
on, FDB entries learned on bridge port device will be synced.  If off, device
may still learn new FDB entries but they will not be synced with bridge's FDB.

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 2c81a8e..0a8ce76 100644 (file)
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -43,6 +43,7 @@ struct br_ip_list {
 #define BR_AUTO_MASK           (BR_FLOOD | BR_LEARNING)
 #define BR_PROMISC             BIT(7)
 #define BR_PROXYARP            BIT(8)
+#define BR_LEARNING_SYNC       BIT(9)
 
 extern void brioctl_set(int (*ioctl_hook)(struct net *, unsigned int, void __user *));
 

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 623f1a7..f7d0d2d 100644 (file)
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -245,6 +245,7 @@ enum {
        IFLA_BRPORT_LEARNING,   /* mac learning */
        IFLA_BRPORT_UNICAST_FLOOD, /* flood unicast traffic */
        IFLA_BRPORT_PROXYARP,   /* proxy ARP */
+       IFLA_BRPORT_LEARNING_SYNC, /* mac learning sync from device */
        __IFLA_BRPORT_MAX
 };
 #define IFLA_BRPORT_MAX (__IFLA_BRPORT_MAX - 1)