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Message-Id: <20250510044504.52618-4-tonghao@bamaicloud.com> Date: Sat, 10 May 2025 12:45:03 +0800 From: tonghao@...aicloud.com To: netdev@...r.kernel.org Cc: Tonghao Zhang <tonghao@...aicloud.com>, Jay Vosburgh <jv@...sburgh.net>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Simon Horman <horms@...nel.org>, Jonathan Corbet <corbet@....net>, Andrew Lunn <andrew+netdev@...n.ch> Subject: [PATCH net-next 3/4] net: bonding: send peer notify when failure recovery From: Tonghao Zhang <tonghao@...aicloud.com> While hardware failures in NICs, optical transceivers, or switches are unavoidable, rapid system recovery can be achieved post-restoration. For example, triggering immediate ARP/ND packet transmission upon LACP failure recovery enables the system to swiftly resume normal operations, thereby minimizing service downtime. Cc: Jay Vosburgh <jv@...sburgh.net> Cc: "David S. Miller" <davem@...emloft.net> Cc: Eric Dumazet <edumazet@...gle.com> Cc: Jakub Kicinski <kuba@...nel.org> Cc: Paolo Abeni <pabeni@...hat.com> Cc: Simon Horman <horms@...nel.org> Cc: Jonathan Corbet <corbet@....net> Cc: Andrew Lunn <andrew+netdev@...n.ch> Signed-off-by: Tonghao Zhang <tonghao@...aicloud.com> --- drivers/net/bonding/bond_3ad.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c index c6807e473ab7..6577ce54d115 100644 --- a/drivers/net/bonding/bond_3ad.c +++ b/drivers/net/bonding/bond_3ad.c @@ -982,6 +982,19 @@ static int ad_marker_send(struct port *port, struct bond_marker *marker) return 0; } +static void ad_peer_notif_send(struct port *port) +{ + if (!port->aggregator->is_active) + return; + + struct bonding *bond = port->slave->bond; + if (bond->params.broadcast_neighbor && rtnl_trylock()) { + bond->send_peer_notif = bond->params.num_peer_notif * + max(1, bond->params.peer_notif_delay); + rtnl_unlock(); + } +} + /** * ad_mux_machine - handle a port's mux state machine * @port: the port we're looking at @@ -1164,6 +1177,7 @@ static void ad_mux_machine(struct port *port, bool *update_slave_arr) port->actor_oper_port_state |= LACP_STATE_COLLECTING; port->actor_oper_port_state |= LACP_STATE_DISTRIBUTING; port->actor_oper_port_state |= LACP_STATE_SYNCHRONIZATION; + ad_peer_notif_send(port); ad_enable_collecting_distributing(port, update_slave_arr); port->ntt = true; -- 2.34.1
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