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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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