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bonding: implement lower state change propagation 

Let netdev notifier listeners know about link and slave state change.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2015-12-03 12:12:20 +01:00 committed by David S. Miller
parent 5d397061ca
commit f7c7eb7f7a
2 changed files with 17 additions and 0 deletions
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10
drivers/net/bonding/bond_main.c
View File

@ -1317,6 +1317,16 @@ void bond_queue_slave_event(struct slave *slave)
queue_delayed_work(slave->bond->wq, &nnw->work, 0);
}
void bond_lower_state_changed(struct slave *slave)
{
struct netdev_lag_lower_state_info info;
info.link_up = slave->link == BOND_LINK_UP ||
slave->link == BOND_LINK_FAIL;
info.tx_enabled = bond_is_active_slave(slave);
netdev_lower_state_changed(slave->dev, &info);
}
/* enslave device <slave> to bond device <master> */
int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
{

7
include/net/bonding.h
View File

@ -247,6 +247,7 @@ struct bonding {
((struct slave *) rtnl_dereference(dev->rx_handler_data))
void bond_queue_slave_event(struct slave *slave);
void bond_lower_state_changed(struct slave *slave);
struct bond_vlan_tag {
__be16 vlan_proto;
@ -328,6 +329,7 @@ static inline void bond_set_active_slave(struct slave *slave)
if (slave->backup) {
slave->backup = 0;
bond_queue_slave_event(slave);
bond_lower_state_changed(slave);
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
}
}
@ -337,6 +339,7 @@ static inline void bond_set_backup_slave(struct slave *slave)
if (!slave->backup) {
slave->backup = 1;
bond_queue_slave_event(slave);
bond_lower_state_changed(slave);
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
}
}
@ -349,6 +352,7 @@ static inline void bond_set_slave_state(struct slave *slave,
slave->backup = slave_state;
if (notify) {
bond_lower_state_changed(slave);
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
bond_queue_slave_event(slave);
slave->should_notify = 0;
@ -380,6 +384,7 @@ static inline void bond_slave_state_notify(struct bonding *bond)
bond_for_each_slave(bond, tmp, iter) {
if (tmp->should_notify) {
bond_lower_state_changed(tmp);
rtmsg_ifinfo(RTM_NEWLINK, tmp->dev, 0, GFP_ATOMIC);
tmp->should_notify = 0;
}
@ -514,6 +519,7 @@ static inline void bond_set_slave_link_state(struct slave *slave, int state,
slave->link = state;
if (notify) {
bond_queue_slave_event(slave);
bond_lower_state_changed(slave);
slave->should_notify_link = 0;
} else {
if (slave->should_notify_link)
@ -531,6 +537,7 @@ static inline void bond_slave_link_notify(struct bonding *bond)
bond_for_each_slave(bond, tmp, iter) {
if (tmp->should_notify_link) {
bond_queue_slave_event(tmp);
bond_lower_state_changed(tmp);
tmp->should_notify_link = 0;
}
}