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bridge: vlan: Allow setting VLAN neighbor suppression state

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Add a new VLAN attribute that allows user space to set the neighbor
suppression state of the port VLAN. Example:

 # bridge -d -j -p vlan show dev swp1 vid 10 | jq '.[]["vlans"][]["neigh_suppress"]'
 false
 # bridge vlan set vid 10 dev swp1 neigh_suppress on
 # bridge -d -j -p vlan show dev swp1 vid 10 | jq '.[]["vlans"][]["neigh_suppress"]'
 true
 # bridge vlan set vid 10 dev swp1 neigh_suppress off
 # bridge -d -j -p vlan show dev swp1 vid 10 | jq '.[]["vlans"][]["neigh_suppress"]'
 false

 # bridge vlan set vid 10 dev br0 neigh_suppress on
 Error: bridge: Can't set neigh_suppress for non-port vlans.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel
2023-04-19 18:34:58 +03:00
committed by David S. Miller
parent 412614b145
commit 83f6d60079
3 changed files with 21 additions and 1 deletions
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include/uapi/linux/if_bridge.h
+1
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@@ -525,6 +525,7 @@ enum {
BRIDGE_VLANDB_ENTRY_MCAST_ROUTER,
BRIDGE_VLANDB_ENTRY_MCAST_N_GROUPS,
BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS,
BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS,
__BRIDGE_VLANDB_ENTRY_MAX,
};
#define BRIDGE_VLANDB_ENTRY_MAX (__BRIDGE_VLANDB_ENTRY_MAX - 1)