Function enetc_dev_init

dpdk/drivers/net/enetc/enetc_ethdev.c:884–935

* Initialisation of the enetc device * * @param eth_dev * - Pointer to the structure rte_eth_dev * * @return * - On success, zero. * - On failure, negative value. */

 *   - On failure, negative value.
 */
static int
enetc_dev_init(struct rte_eth_dev *eth_dev)
{
	int error = 0;
	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
	struct enetc_eth_hw *hw =
		ENETC_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);

	PMD_INIT_FUNC_TRACE();
	eth_dev->dev_ops = &enetc_ops;
	eth_dev->rx_pkt_burst = &enetc_recv_pkts;
	eth_dev->tx_pkt_burst = &enetc_xmit_pkts;

	/* Retrieving and storing the HW base address of device */
	hw->hw.reg = (void *)pci_dev->mem_resource[0].addr;
	hw->device_id = pci_dev->id.device_id;

	error = enetc_hardware_init(hw);
	if (error != 0) {
		ENETC_PMD_ERR("Hardware initialization failed");
		return -1;
	}

	/* Allocate memory for storing MAC addresses */
	eth_dev->data->mac_addrs = rte_zmalloc("enetc_eth",
					RTE_ETHER_ADDR_LEN, 0);
	if (!eth_dev->data->mac_addrs) {
		ENETC_PMD_ERR("Failed to allocate %d bytes needed to "
			      "store MAC addresses",
			      RTE_ETHER_ADDR_LEN * 1);
		error = -ENOMEM;
		return -1;
	}

	/* Copy the permanent MAC address */
	rte_ether_addr_copy((struct rte_ether_addr *)hw->mac.addr,
			&eth_dev->data->mac_addrs[0]);

	/* Set MTU */
	enetc_port_wr(&hw->hw, ENETC_PM0_MAXFRM,
		      ENETC_SET_MAXFRM(RTE_ETHER_MAX_LEN));
	eth_dev->data->mtu = RTE_ETHER_MAX_LEN - RTE_ETHER_HDR_LEN -
		RTE_ETHER_CRC_LEN;

	if (rte_eal_iova_mode() == RTE_IOVA_PA)
		dpaax_iova_table_populate();

	ENETC_PMD_DEBUG("port_id %d vendorID=0x%x deviceID=0x%x",
			eth_dev->data->port_id, pci_dev->id.vendor_id,
			pci_dev->id.device_id);
	return 0;
}

static int
enetc_dev_uninit(struct rte_eth_dev *eth_dev)