From: Jiri Pirko <jiri@mellanox.com>
Date: Thu, 3 Dec 2015 11:12:18 +0000 (+0100)
Subject: team: implement lower state change propagation
X-Git-Tag: v4.5-rc1~128^2~228^2~12
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3a0d6c5af5e52622a58c68d7c276db9ec38ee2a4;p=platform%2Fkernel%2Flinux-exynos.git

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 9814133..059c0f6 100644
--- 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 | \