[Bridge] [RFC PATCH net-next 3/9] bridge: Add internal flags for per-{Port, VLAN} neighbor suppression

[Ido Schimmel <idosch@nvidia.com>]

Add two internal flags that will be used to enable / disable per-{Port,
VLAN} neighbor suppression:

1. 'BR_NEIGH_VLAN_SUPPRESS': A per-port flag used to indicate that
per-{Port, VLAN} neighbor suppression is enabled on the bridge port.
When set, 'BR_NEIGH_SUPPRESS' has no effect.

2. 'BR_VLFLAG_NEIGH_SUPPRESS_ENABLED': A per-VLAN flag used to indicate
that neighbor suppression is enabled on the given VLAN.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
---
 include/linux/if_bridge.h | 1 +
 net/bridge/br_private.h   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 1668ac4d7adc..3ff96ae31bf6 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -60,6 +60,7 @@ struct br_ip_list {
 #define BR_TX_FWD_OFFLOAD	BIT(20)
 #define BR_PORT_LOCKED		BIT(21)
 #define BR_PORT_MAB		BIT(22)
+#define BR_NEIGH_VLAN_SUPPRESS	BIT(23)
 
 #define BR_DEFAULT_AGEING_TIME	(300 * HZ)
 
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 1ff4d64ab584..b17fc821ecc8 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -178,6 +178,7 @@ enum {
 	BR_VLFLAG_ADDED_BY_SWITCHDEV = BIT(1),
 	BR_VLFLAG_MCAST_ENABLED = BIT(2),
 	BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3),
+	BR_VLFLAG_NEIGH_SUPPRESS_ENABLED = BIT(4),
 };
 
 /**
-- 
2.37.3