mlx5_cmd_xrcd_alloc
int mlx5_cmd_xrcd_alloc(struct mlx5_core_dev *dev, u32 *xrcdn, u16 uid);
ret = mlx5_cmd_xrcd_alloc(dev->mdev, &devr->xrcdn0, 0);
ret = mlx5_cmd_xrcd_alloc(dev->mdev, &devr->xrcdn1, 0);
return mlx5_cmd_xrcd_alloc(dev->mdev, &xrcd->xrcdn, 0);