Function eth_em_dev_init

dpdk/drivers/net/e1000/em_ethdev.c:245–319

}

static int
eth_em_dev_init(struct rte_eth_dev *eth_dev)
{
	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
	struct rte_intr_handle *intr_handle = pci_dev->intr_handle;
	struct e1000_adapter *adapter =
		E1000_DEV_PRIVATE(eth_dev->data->dev_private);
	struct e1000_hw *hw =
		E1000_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
	struct e1000_vfta * shadow_vfta =
		E1000_DEV_PRIVATE_TO_VFTA(eth_dev->data->dev_private);

	eth_dev->dev_ops = &eth_em_ops;
	eth_dev->rx_queue_count = eth_em_rx_queue_count;
	eth_dev->rx_descriptor_status = eth_em_rx_descriptor_status;
	eth_dev->tx_descriptor_status = eth_em_tx_descriptor_status;
	eth_dev->rx_pkt_burst = (eth_rx_burst_t)&eth_em_recv_pkts;
	eth_dev->tx_pkt_burst = (eth_tx_burst_t)&eth_em_xmit_pkts;
	eth_dev->tx_pkt_prepare = (eth_tx_prep_t)&eth_em_prep_pkts;

	/* for secondary processes, we don't initialise any further as primary
	 * has already done this work. Only check we don't need a different
	 * RX function */
	if (rte_eal_process_type() != RTE_PROC_PRIMARY){
		if (eth_dev->data->scattered_rx)
			eth_dev->rx_pkt_burst =
				(eth_rx_burst_t)&eth_em_recv_scattered_pkts;
		return 0;
	}

	rte_eth_copy_pci_info(eth_dev, pci_dev);

	hw->hw_addr = (void *)pci_dev->mem_resource[0].addr;
	hw->device_id = pci_dev->id.device_id;
	adapter->stopped = 0;

	/* For ICH8 support we'll need to map the flash memory BAR */
	if (eth_em_dev_is_ich8(hw))
		hw->flash_address = (void *)pci_dev->mem_resource[1].addr;

	if (e1000_setup_init_funcs(hw, TRUE) != E1000_SUCCESS ||
			em_hw_init(hw) != 0) {
		PMD_INIT_LOG(ERR, "port_id %d vendorID=0x%x deviceID=0x%x: "
			"failed to init HW",
			eth_dev->data->port_id, pci_dev->id.vendor_id,
			pci_dev->id.device_id);
		return -ENODEV;
	}

	/* Allocate memory for storing MAC addresses */
	eth_dev->data->mac_addrs = rte_zmalloc("e1000", RTE_ETHER_ADDR_LEN *
			hw->mac.rar_entry_count, 0);
	if (eth_dev->data->mac_addrs == NULL) {
		PMD_INIT_LOG(ERR, "Failed to allocate %d bytes needed to "
			"store MAC addresses",
			RTE_ETHER_ADDR_LEN * hw->mac.rar_entry_count);
		return -ENOMEM;
	}