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authorMahesh Bandewar <maheshb@google.com>2015-03-05 05:57:52 (GMT)
committerDavid S. Miller <davem@davemloft.net>2015-03-06 19:40:42 (GMT)
commit616f45416ca0d726d6d3421a296ebc6e2bb82cde (patch)
treef23dea6ff2818919a347f6787860665a8068797d /drivers/net/bonding
parent8ea696384a1641048a17d1ed3cee4fabb0bf4e03 (diff)
downloadlinux-616f45416ca0d726d6d3421a296ebc6e2bb82cde.tar.xz
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: Mahesh Bandewar <maheshb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding')
-rw-r--r--drivers/net/bonding/bond_main.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 675b082..c026ce9 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -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)