__mlx4_ib_query_port
int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
err = __mlx4_ib_query_port(ibdev, port, &attr, 1);
return __mlx4_ib_query_port(ibdev, port, props, 0);
ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1);