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Commit 616f4541 authored by Mahesh Bandewar's avatar Mahesh Bandewar Committed by David S. Miller
Browse files

bonding: implement bond_poll_controller() 



This patches implements the poll_controller support for all
bonding driver. If the slaves have poll_controller net_op defined,
this implementation calls them. This is mode agnostic implementation
and iterates through all slaves (based on mode) and calls respective
handler.

Signed-off-by: default avatarMahesh Bandewar <maheshb@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8ea69638

drivers/net/bonding/bond_main.c

+33 −0
Original line number Diff line number Diff line
@@ -928,6 +928,39 @@ static inline void slave_disable_netpoll(struct slave *slave) 


static void bond_poll_controller(struct net_device *bond_dev)

{

	struct bonding *bond = netdev_priv(bond_dev);

	struct slave *slave = NULL;

	struct list_head *iter;

	struct ad_info ad_info;

	struct netpoll_info *ni;

	const struct net_device_ops *ops;



	if (BOND_MODE(bond) == BOND_MODE_8023AD)

		if (bond_3ad_get_active_agg_info(bond, &ad_info))

			return;



	rcu_read_lock_bh();

	bond_for_each_slave_rcu(bond, slave, iter) {

		ops = slave->dev->netdev_ops;

		if (!bond_slave_is_up(slave) || !ops->ndo_poll_controller)

			continue;



		if (BOND_MODE(bond) == BOND_MODE_8023AD) {

			struct aggregator *agg =

			    SLAVE_AD_INFO(slave)->port.aggregator;



			if (agg &&

			    agg->aggregator_identifier != ad_info.aggregator_id)

				continue;

		}



		ni = rcu_dereference_bh(slave->dev->npinfo);

		if (down_trylock(&ni->dev_lock))

			continue;

		ops->ndo_poll_controller(slave->dev);

		up(&ni->dev_lock);

	}

	rcu_read_unlock_bh();

}



static void bond_netpoll_cleanup(struct net_device *bond_dev)