Function device_map_resources

dpdk/drivers/bus/platform/platform.c:266–312

}

static int
device_map_resources(struct rte_platform_device *pdev, unsigned int num)
{
	struct rte_platform_resource *res;
	unsigned int i;
	int ret;

	if (num == 0) {
		PLATFORM_LOG(WARNING, "device %s has no resources\n", pdev->name);
		return 0;
	}

	pdev->resource = calloc(num, sizeof(*pdev->resource));
	if (pdev->resource == NULL)
		return -ENOMEM;

	for (i = 0; i < num; i++) {
		struct vfio_region_info reg_info = {
			.argsz = sizeof(reg_info),
			.index = i,
		};

		ret = ioctl(pdev->dev_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info);
		if (ret) {
			PLATFORM_LOG(ERR, "failed to get region info at %d\n", i);
			ret = -errno;
			goto out;
		}

		res = &pdev->resource[i];
		res->name = of_resource_name(pdev->name, reg_info.index);
		res->mem.len = reg_info.size;
		ret = device_map_resource_offset(pdev, res, reg_info.offset);
		if (ret) {
			PLATFORM_LOG(ERR, "failed to ioremap resource at %d\n", i);
			goto out;
		}

		pdev->num_resource++;
	}

	return 0;
out:
	device_unmap_resources(pdev);

	return ret;
}

static void
device_cleanup(struct rte_platform_device *pdev)