[patch net-next v3 18/28] bonding: implement lower state change propagation

[Jiri Pirko]

From: Jiri Pirko <j...@mellanox.com>

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

Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
 drivers/net/bonding/bond_main.c | 10 ++++++++++
 include/net/bonding.h           |  7 +++++++
 2 files changed, 17 insertions(+)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 7695490..2f11450 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -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)
 {
diff --git a/include/net/bonding.h b/include/net/bonding.h
index 1df4377..ee6c520 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -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;
                }
        }
-- 
1.9.3

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html