net/bonding: Notify state change on slaves
Use notifier chain to dispatch an event upon a change in slave state.
Event is dispatched with slave specific info.
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/bonding.h b/include/net/bonding.h
index d1367ec..4e17095 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -150,6 +150,12 @@
int mode;
};
+struct netdev_notify_work {
+ struct delayed_work work;
+ struct slave *slave;
+ struct net_device *dev;
+};
+
struct slave {
struct net_device *dev; /* first - useful for panic debug */
struct bonding *bond; /* our master */
@@ -243,6 +249,8 @@
#define bond_slave_get_rtnl(dev) \
((struct slave *) rtnl_dereference(dev->rx_handler_data))
+void bond_queue_slave_event(struct slave *slave);
+
struct bond_vlan_tag {
__be16 vlan_proto;
unsigned short vlan_id;
@@ -315,6 +323,7 @@
{
if (slave->backup) {
slave->backup = 0;
+ bond_queue_slave_event(slave);
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
}
}
@@ -323,6 +332,7 @@
{
if (!slave->backup) {
slave->backup = 1;
+ bond_queue_slave_event(slave);
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
}
}
@@ -336,6 +346,7 @@
slave->backup = slave_state;
if (notify) {
rtmsg_ifinfo(RTM_NEWLINK, slave->dev, 0, GFP_ATOMIC);
+ bond_queue_slave_event(slave);
slave->should_notify = 0;
} else {
if (slave->should_notify)
@@ -493,6 +504,7 @@
static inline void bond_set_slave_link_state(struct slave *slave, int state)
{
slave->link = state;
+ bond_queue_slave_event(slave);
}
static inline __be32 bond_confirm_addr(struct net_device *dev, __be32 dst, __be32 local)