+ /* parse driver */
+ snprintf(filename, sizeof(filename), "%s/driver", dirname);
+ ret = pci_get_kernel_driver_by_path(filename, driver);
+ if (ret < 0) {
+ RTE_LOG(ERR, EAL, "Fail to get kernel driver\n");
+ free(dev);
+ return -1;
+ }
+
+ if (!ret) {
+ if (!strcmp(driver, "vfio-pci"))
+ dev->kdrv = RTE_KDRV_VFIO;
+ else if (!strcmp(driver, "igb_uio"))
+ dev->kdrv = RTE_KDRV_IGB_UIO;
+ else if (!strcmp(driver, "uio_pci_generic"))
+ dev->kdrv = RTE_KDRV_UIO_GENERIC;
+ else
+ dev->kdrv = RTE_KDRV_UNKNOWN;
+ } else
+ dev->kdrv = RTE_KDRV_NONE;
+
+ /* device is valid, add in list (sorted) */
+ if (TAILQ_EMPTY(&pci_device_list)) {
+ TAILQ_INSERT_TAIL(&pci_device_list, dev, next);
+ } else {
+ struct rte_pci_device *dev2;
+ int ret;
+
+ TAILQ_FOREACH(dev2, &pci_device_list, next) {
+ ret = rte_eal_compare_pci_addr(&dev->addr, &dev2->addr);
+ if (ret > 0)
+ continue;
+
+ if (ret < 0) {
+ TAILQ_INSERT_BEFORE(dev2, dev, next);
+ } else { /* already registered */
+ dev2->kdrv = dev->kdrv;
+ dev2->max_vfs = dev->max_vfs;
+ memmove(dev2->mem_resource, dev->mem_resource,
+ sizeof(dev->mem_resource));
+ free(dev);
+ }
+ return 0;
+ }
+ TAILQ_INSERT_TAIL(&pci_device_list, dev, next);
+ }