mlx5: Use dev_net netdevice notifier registrations

Register the dev_net notifier and allow the per-net notifier to follow
the device into different namespace.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/mellanox/mlx5/core/en/fs.h

@@ -21,6 +21,7 @@ struct mlx5e_tc_table {
 	DECLARE_HASHTABLE(hairpin_tbl, 8);
 
 	struct notifier_block     netdevice_nb;
+	struct netdev_net_notifier	netdevice_nn;
 };
 
 struct mlx5e_flow_table {

drivers/net/ethernet/mellanox/mlx5/core/en_main.c

@@ -5144,6 +5144,7 @@ static void mlx5e_nic_enable(struct mlx5e_priv *priv)
 
 static void mlx5e_nic_disable(struct mlx5e_priv *priv)
 {
+	struct net_device *netdev = priv->netdev;
 	struct mlx5_core_dev *mdev = priv->mdev;
 
 #ifdef CONFIG_MLX5_CORE_EN_DCB
@@ -5164,7 +5165,7 @@ static void mlx5e_nic_disable(struct mlx5e_priv *priv)
 		mlx5e_monitor_counter_cleanup(priv);
 
 	mlx5e_disable_async_events(priv);
-	mlx5_lag_remove(mdev);
+	mlx5_lag_remove(mdev, netdev);
 }
 
 int mlx5e_update_nic_rx(struct mlx5e_priv *priv)

drivers/net/ethernet/mellanox/mlx5/core/en_rep.c

@@ -1731,7 +1731,9 @@ static int mlx5e_init_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
 	/* init indirect block notifications */
 	INIT_LIST_HEAD(&uplink_priv->tc_indr_block_priv_list);
 	uplink_priv->netdevice_nb.notifier_call = mlx5e_nic_rep_netdevice_event;
-	err = register_netdevice_notifier(&uplink_priv->netdevice_nb);
+	err = register_netdevice_notifier_dev_net(rpriv->netdev,
+						  &uplink_priv->netdevice_nb,
+						  &uplink_priv->netdevice_nn);
 	if (err) {
 		mlx5_core_err(priv->mdev, "Failed to register netdev notifier\n");
 		goto tc_esw_cleanup;
@@ -1770,8 +1772,12 @@ static int mlx5e_init_rep_tx(struct mlx5e_priv *priv)
 
 static void mlx5e_cleanup_uplink_rep_tx(struct mlx5e_rep_priv *rpriv)
 {
+	struct mlx5_rep_uplink_priv *uplink_priv = &rpriv->uplink_priv;
+
 	/* clean indirect TC block notifications */
-	unregister_netdevice_notifier(&rpriv->uplink_priv.netdevice_nb);
+	unregister_netdevice_notifier_dev_net(rpriv->netdev,
+					      &uplink_priv->netdevice_nb,
+					      &uplink_priv->netdevice_nn);
 	mlx5e_rep_indr_clean_block_privs(rpriv);
 
 	/* delete shared tc flow table */
@@ -1855,6 +1861,7 @@ static void mlx5e_uplink_rep_enable(struct mlx5e_priv *priv)
 
 static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
 {
+	struct net_device *netdev = priv->netdev;
 	struct mlx5_core_dev *mdev = priv->mdev;
 	struct mlx5e_rep_priv *rpriv = priv->ppriv;
 
@@ -1863,7 +1870,7 @@ static void mlx5e_uplink_rep_disable(struct mlx5e_priv *priv)
 #endif
 	mlx5_notifier_unregister(mdev, &priv->events_nb);
 	cancel_work_sync(&rpriv->uplink_priv.reoffload_flows_work);
-	mlx5_lag_remove(mdev);
+	mlx5_lag_remove(mdev, netdev);
 }
 
 static MLX5E_DEFINE_STATS_GRP(sw_rep, 0);

drivers/net/ethernet/mellanox/mlx5/core/en_rep.h

@@ -73,6 +73,7 @@ struct mlx5_rep_uplink_priv {
 	 */
 	struct list_head	    tc_indr_block_priv_list;
 	struct notifier_block	    netdevice_nb;
+	struct netdev_net_notifier  netdevice_nn;
 
 	struct mlx5_tun_entropy tun_entropy;
 

drivers/net/ethernet/mellanox/mlx5/core/en_tc.c

@@ -4251,7 +4251,10 @@ int mlx5e_tc_nic_init(struct mlx5e_priv *priv)
 		return err;
 
 	tc->netdevice_nb.notifier_call = mlx5e_tc_netdev_event;
-	if (register_netdevice_notifier(&tc->netdevice_nb)) {
+	err = register_netdevice_notifier_dev_net(priv->netdev,
+						  &tc->netdevice_nb,
+						  &tc->netdevice_nn);
+	if (err) {
 		tc->netdevice_nb.notifier_call = NULL;
 		mlx5_core_warn(priv->mdev, "Failed to register netdev notifier\n");
 	}
@@ -4273,7 +4276,9 @@ void mlx5e_tc_nic_cleanup(struct mlx5e_priv *priv)
 	struct mlx5e_tc_table *tc = &priv->fs.tc;
 
 	if (tc->netdevice_nb.notifier_call)
-		unregister_netdevice_notifier(&tc->netdevice_nb);
+		unregister_netdevice_notifier_dev_net(priv->netdev,
+						      &tc->netdevice_nb,
+						      &tc->netdevice_nn);
 
 	mutex_destroy(&tc->mod_hdr.lock);
 	mutex_destroy(&tc->hairpin_tbl_lock);

drivers/net/ethernet/mellanox/mlx5/core/lag.c

@@ -586,7 +586,8 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
 
 	if (!ldev->nb.notifier_call) {
 		ldev->nb.notifier_call = mlx5_lag_netdev_event;
-		if (register_netdevice_notifier(&ldev->nb)) {
+		if (register_netdevice_notifier_dev_net(netdev, &ldev->nb,
+							&ldev->nn)) {
 			ldev->nb.notifier_call = NULL;
 			mlx5_core_err(dev, "Failed to register LAG netdev notifier\n");
 		}
@@ -599,7 +600,7 @@ void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev)
 }
 
 /* Must be called with intf_mutex held */
-void mlx5_lag_remove(struct mlx5_core_dev *dev)
+void mlx5_lag_remove(struct mlx5_core_dev *dev, struct net_device *netdev)
 {
 	struct mlx5_lag *ldev;
 	int i;
@@ -619,7 +620,8 @@ void mlx5_lag_remove(struct mlx5_core_dev *dev)
 
 	if (i == MLX5_MAX_PORTS) {
 		if (ldev->nb.notifier_call)
-			unregister_netdevice_notifier(&ldev->nb);
+			unregister_netdevice_notifier_dev_net(netdev, &ldev->nb,
+							      &ldev->nn);
 		mlx5_lag_mp_cleanup(ldev);
 		cancel_delayed_work_sync(&ldev->bond_work);
 		mlx5_lag_dev_free(ldev);

drivers/net/ethernet/mellanox/mlx5/core/lag.h

@@ -44,6 +44,7 @@ struct mlx5_lag {
 	struct workqueue_struct   *wq;
 	struct delayed_work       bond_work;
 	struct notifier_block     nb;
+	struct netdev_net_notifier	nn;
 	struct lag_mp             lag_mp;
 };
 

drivers/net/ethernet/mellanox/mlx5/core/mlx5_core.h

@@ -157,7 +157,7 @@ int mlx5_query_qcam_reg(struct mlx5_core_dev *mdev, u32 *qcam,
 			u8 feature_group, u8 access_reg_group);
 
 void mlx5_lag_add(struct mlx5_core_dev *dev, struct net_device *netdev);
-void mlx5_lag_remove(struct mlx5_core_dev *dev);
+void mlx5_lag_remove(struct mlx5_core_dev *dev, struct net_device *netdev);
 
 int mlx5_irq_table_init(struct mlx5_core_dev *dev);
 void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev);