mlx4_get_roce_gid_from_slave
err = mlx4_get_roce_gid_from_slave(to_mdev(ib_dev)->dev,
EXPORT_SYMBOL(mlx4_get_roce_gid_from_slave);
int mlx4_get_roce_gid_from_slave(struct mlx4_dev *dev, int port, int slave_id,