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>
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@ -2473,3 +2473,34 @@ void bond_3ad_lacpdu_recv(struct sk_buff *skb, struct bonding *bond,
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bond_3ad_rx_indication((struct lacpdu *) skb->data, slave, skb->len);
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read_unlock(&bond->lock);
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}
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/*
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* When modify lacp_rate parameter via sysfs,
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* update actor_oper_port_state of each port.
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*
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* Hold slave->state_machine_lock,
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* so we can modify port->actor_oper_port_state,
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* no matter bond is up or down.
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*/
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void bond_3ad_update_lacp_rate(struct bonding *bond)
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{
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int i;
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struct slave *slave;
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struct port *port = NULL;
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int lacp_fast;
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read_lock(&bond->lock);
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lacp_fast = bond->params.lacp_fast;
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bond_for_each_slave(bond, slave, i) {
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port = &(SLAVE_AD_INFO(slave).port);
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__get_state_machine_lock(port);
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if (lacp_fast)
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port->actor_oper_port_state |= AD_STATE_LACP_TIMEOUT;
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else
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port->actor_oper_port_state &= ~AD_STATE_LACP_TIMEOUT;
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__release_state_machine_lock(port);
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}
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read_unlock(&bond->lock);
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}
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@ -282,5 +282,6 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev);
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void bond_3ad_lacpdu_recv(struct sk_buff *skb, struct bonding *bond,
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struct slave *slave);
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int bond_3ad_set_carrier(struct bonding *bond);
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void bond_3ad_update_lacp_rate(struct bonding *bond);
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#endif //__BOND_3AD_H__
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@ -804,6 +804,7 @@ static ssize_t bonding_store_lacp(struct device *d,
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if ((new_value == 1) || (new_value == 0)) {
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bond->params.lacp_fast = new_value;
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bond_3ad_update_lacp_rate(bond);
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pr_info("%s: Setting LACP rate to %s (%d).\n",
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bond->dev->name, bond_lacp_tbl[new_value].modename,
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new_value);
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