Function eth_avp_dev_init

dpdk/drivers/net/avp/avp_ethdev.c:948–1020

* This function is based on probe() function in avp_pci.c * It returns 0 on success. */

 * It returns 0 on success.
 */
static int
eth_avp_dev_init(struct rte_eth_dev *eth_dev)
{
	struct avp_dev *avp =
		AVP_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
	struct rte_pci_device *pci_dev;
	int ret;

	pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
	eth_dev->dev_ops = &avp_eth_dev_ops;
	eth_dev->rx_pkt_burst = &avp_recv_pkts;
	eth_dev->tx_pkt_burst = &avp_xmit_pkts;

	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
		/*
		 * no setup required on secondary processes.  All data is saved
		 * in dev_private by the primary process. All resource should
		 * be mapped to the same virtual address so all pointers should
		 * be valid.
		 */
		if (eth_dev->data->scattered_rx) {
			PMD_DRV_LOG(NOTICE, "AVP device configured for chained mbufs\n");
			eth_dev->rx_pkt_burst = avp_recv_scattered_pkts;
			eth_dev->tx_pkt_burst = avp_xmit_scattered_pkts;
		}
		return 0;
	}

	rte_eth_copy_pci_info(eth_dev, pci_dev);
	eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;

	/* Check current migration status */
	if (avp_dev_migration_pending(eth_dev)) {
		PMD_DRV_LOG(ERR, "VM live migration operation in progress\n");
		return -EBUSY;
	}

	/* Check BAR resources */
	ret = avp_dev_check_regions(eth_dev);
	if (ret < 0) {
		PMD_DRV_LOG(ERR, "Failed to validate BAR resources, ret=%d\n",
			    ret);
		return ret;
	}

	/* Enable interrupts */
	ret = avp_dev_setup_interrupts(eth_dev);
	if (ret < 0) {
		PMD_DRV_LOG(ERR, "Failed to enable interrupts, ret=%d\n", ret);
		return ret;
	}

	/* Handle each subtype */
	ret = avp_dev_create(pci_dev, eth_dev);
	if (ret < 0) {
		PMD_DRV_LOG(ERR, "Failed to create device, ret=%d\n", ret);
		return ret;
	}