net/mlx5: Vport LAG creation support

Add interfaces for issuing CREATE_VPORT_LAG and
DESTROY_VPORT_LAG commands.

Used for receiving PF1's eth traffic on PF0's
root ft.

Signed-off-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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

@@ -110,6 +110,28 @@ static int mlx5_cmd_destroy_lag(struct mlx5_core_dev *dev)
 	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
 }
 
+int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev)
+{
+	u32  in[MLX5_ST_SZ_DW(create_vport_lag_in)]  = {0};
+	u32 out[MLX5_ST_SZ_DW(create_vport_lag_out)] = {0};
+
+	MLX5_SET(create_vport_lag_in, in, opcode, MLX5_CMD_OP_CREATE_VPORT_LAG);
+
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+EXPORT_SYMBOL(mlx5_cmd_create_vport_lag);
+
+int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev)
+{
+	u32  in[MLX5_ST_SZ_DW(destroy_vport_lag_in)]  = {0};
+	u32 out[MLX5_ST_SZ_DW(destroy_vport_lag_out)] = {0};
+
+	MLX5_SET(destroy_vport_lag_in, in, opcode, MLX5_CMD_OP_DESTROY_VPORT_LAG);
+
+	return mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
+}
+EXPORT_SYMBOL(mlx5_cmd_destroy_vport_lag);
+
 static struct mlx5_lag *mlx5_lag_dev_get(struct mlx5_core_dev *dev)
 {
 	return dev->priv.lag;

include/linux/mlx5/driver.h

@@ -944,6 +944,8 @@ int mlx5_register_interface(struct mlx5_interface *intf);
 void mlx5_unregister_interface(struct mlx5_interface *intf);
 int mlx5_core_query_vendor_id(struct mlx5_core_dev *mdev, u32 *vendor_id);
 
+int mlx5_cmd_create_vport_lag(struct mlx5_core_dev *dev);
+int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev);
 bool mlx5_lag_is_active(struct mlx5_core_dev *dev);
 struct net_device *mlx5_lag_get_roce_netdev(struct mlx5_core_dev *dev);