team: implement lower state change propagation

Let netdev notifier listeners know about link-up and port-enable state
changes.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 98141338d0ce3931d194bb88173c10b658fdd734..059c0f60a2b28f8447d78c8876aac29618551b0f 100644 (file)
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -91,10 +91,24 @@ void team_modeop_port_change_dev_addr(struct team *team,
 }
 EXPORT_SYMBOL(team_modeop_port_change_dev_addr);
 
+static void team_lower_state_changed(struct team_port *port)
+{
+       struct netdev_lag_lower_state_info info;
+
+       info.link_up = port->linkup;
+       info.tx_enabled = team_port_enabled(port);
+       netdev_lower_state_changed(port->dev, &info);
+}
+
 static void team_refresh_port_linkup(struct team_port *port)
 {
-       port->linkup = port->user.linkup_enabled ? port->user.linkup :
-                                                  port->state.linkup;
+       bool new_linkup = port->user.linkup_enabled ? port->user.linkup :
+                                                     port->state.linkup;
+
+       if (port->linkup != new_linkup) {
+               port->linkup = new_linkup;
+               team_lower_state_changed(port);
+       }
 }
 
 
@@ -932,6 +946,7 @@ static void team_port_enable(struct team *team,
                team->ops.port_enabled(team, port);
        team_notify_peers(team);
        team_mcast_rejoin(team);
+       team_lower_state_changed(port);
 }
 
 static void __reconstruct_port_hlist(struct team *team, int rm_index)
@@ -963,6 +978,7 @@ static void team_port_disable(struct team *team,
        team_adjust_ops(team);
        team_notify_peers(team);
        team_mcast_rejoin(team);
+       team_lower_state_changed(port);
 }
 
 #define TEAM_VLAN_FEATURES (NETIF_F_ALL_CSUM | NETIF_F_SG | \