net/mlx5e: Dynamic alloc vlan table for netdev when needed

Dynamic allocate vlan table in mlx5e_priv for EN netdev
when needed. Don't allocate it for representor netdev.
Signed-off-by: Vu Pham <vuhuong@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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

@@ -49,18 +49,10 @@ struct mlx5e_promisc_table {
 	struct mlx5_flow_handle	*rule;
 };
 
-struct mlx5e_vlan_table {
-	struct mlx5e_flow_table		ft;
-	DECLARE_BITMAP(active_cvlans, VLAN_N_VID);
-	DECLARE_BITMAP(active_svlans, VLAN_N_VID);
-	struct mlx5_flow_handle	*active_cvlans_rule[VLAN_N_VID];
-	struct mlx5_flow_handle	*active_svlans_rule[VLAN_N_VID];
-	struct mlx5_flow_handle	*untagged_rule;
-	struct mlx5_flow_handle	*any_cvlan_rule;
-	struct mlx5_flow_handle	*any_svlan_rule;
-	struct mlx5_flow_handle	*trap_rule;
-	bool			cvlan_filter_disabled;
-};
+/* Forward declaration and APIs to get private fields of vlan_table */
+struct mlx5e_vlan_table;
+unsigned long *mlx5e_vlan_get_active_svlans(struct mlx5e_vlan_table *vlan);
+struct mlx5_flow_table *mlx5e_vlan_get_flowtable(struct mlx5e_vlan_table *vlan);
 
 struct mlx5e_l2_table {
 	struct mlx5e_flow_table    ft;
@@ -231,7 +223,7 @@ struct mlx5e_flow_steering {
 #endif
 	struct mlx5e_tc_table           tc;
 	struct mlx5e_promisc_table      promisc;
-	struct mlx5e_vlan_table         vlan;
+	struct mlx5e_vlan_table         *vlan;
 	struct mlx5e_l2_table           l2;
 	struct mlx5e_ttc_table          ttc;
 	struct mlx5e_ttc_table          inner_ttc;

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

@@ -3823,7 +3823,8 @@ static netdev_features_t mlx5e_fix_features(struct net_device *netdev,
 
 	mutex_lock(&priv->state_lock);
 	params = &priv->channels.params;
-	if (!bitmap_empty(priv->fs.vlan.active_svlans, VLAN_N_VID)) {
+	if (!priv->fs.vlan ||
+	    !bitmap_empty(mlx5e_vlan_get_active_svlans(priv->fs.vlan), VLAN_N_VID)) {
 		/* HW strips the outer C-tag header, this is a problem
 		 * for S-tag traffic.
 		 */

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

@@ -906,7 +906,7 @@ mlx5e_add_offloaded_nic_rule(struct mlx5e_priv *priv,
 			if (IS_ERR(dest[dest_ix].ft))
 				return ERR_CAST(dest[dest_ix].ft);
 		} else {
-			dest[dest_ix].ft = priv->fs.vlan.ft.t;
+			dest[dest_ix].ft = mlx5e_vlan_get_flowtable(priv->fs.vlan);
 		}
 		dest_ix++;
 	}
@@ -4753,7 +4753,7 @@ int mlx5e_tc_nic_init(struct mlx5e_priv *priv)
 	attr.ns = MLX5_FLOW_NAMESPACE_KERNEL;
 	attr.max_ft_sz = mlx5e_tc_nic_get_ft_size(dev);
 	attr.max_grp_num = MLX5E_TC_TABLE_NUM_GROUPS;
-	attr.default_ft = priv->fs.vlan.ft.t;
+	attr.default_ft = mlx5e_vlan_get_flowtable(priv->fs.vlan);
 
 	tc->chains = mlx5_chains_create(dev, &attr);
 	if (IS_ERR(tc->chains)) {