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bridge: Add internal flags for neigh_forward_grat

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Add internal flags for the neigh_forward_grat feature:

- BR_NEIGH_FORWARD_GRAT: Port-level flag
- BR_VLFLAG_NEIGH_FORWARD_GRAT_ENABLED: Per-VLAN flag

These will be used to control whether gratuitous ARP and unsolicited NA
packets are forwarded when neighbor suppression is enabled.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Link: https://patch.msgid.link/20260511065936.4173106-3-danieller@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Danielle Ratson 2026-05-11 09:59:32 +03:00 committed by Paolo Abeni
parent 0c32db0761
commit 3a28ccb9dd
2 changed files with 2 additions and 0 deletions
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1
include/linux/if_bridge.h
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@ -61,6 +61,7 @@ struct br_ip_list {
#define BR_PORT_LOCKED BIT(21)
#define BR_PORT_MAB BIT(22)
#define BR_NEIGH_VLAN_SUPPRESS BIT(23)
#define BR_NEIGH_FORWARD_GRAT BIT(24)
#define BR_DEFAULT_AGEING_TIME (300 * HZ)

1
net/bridge/br_private.h
View File

@ -183,6 +183,7 @@ enum {
BR_VLFLAG_GLOBAL_MCAST_ENABLED = BIT(3),
BR_VLFLAG_NEIGH_SUPPRESS_ENABLED = BIT(4),
BR_VLFLAG_TAGGING_BY_SWITCHDEV = BIT(5),
BR_VLFLAG_NEIGH_FORWARD_GRAT_ENABLED = BIT(6),
};
/**