bonding: make 802.3ad use latest lacp_rate
There is bug that when you modify lacp_rate via sysfs,
802.3ad won't use the new value of lacp_rate to transmit packets.
This is because port->actor_oper_port_state isn't changed.
Signed-off-by: Weiping Pan <panweiping3@gmail.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index c7537abc..4512bc4 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2473,3 +2473,34 @@
bond_3ad_rx_indication((struct lacpdu *) skb->data, slave, skb->len);
read_unlock(&bond->lock);
}
+
+/*
+ * When modify lacp_rate parameter via sysfs,
+ * update actor_oper_port_state of each port.
+ *
+ * Hold slave->state_machine_lock,
+ * so we can modify port->actor_oper_port_state,
+ * no matter bond is up or down.
+ */
+void bond_3ad_update_lacp_rate(struct bonding *bond)
+{
+ int i;
+ struct slave *slave;
+ struct port *port = NULL;
+ int lacp_fast;
+
+ read_lock(&bond->lock);
+ lacp_fast = bond->params.lacp_fast;
+
+ bond_for_each_slave(bond, slave, i) {
+ port = &(SLAVE_AD_INFO(slave).port);
+ __get_state_machine_lock(port);
+ if (lacp_fast)
+ port->actor_oper_port_state |= AD_STATE_LACP_TIMEOUT;
+ else
+ port->actor_oper_port_state &= ~AD_STATE_LACP_TIMEOUT;
+ __release_state_machine_lock(port);
+ }
+
+ read_unlock(&bond->lock);
+}