Function eth_igb_start

dpdk/drivers/net/e1000/igb_ethdev.c:1191–1414

}

static int
eth_igb_start(struct rte_eth_dev *dev)
{
	struct e1000_hw *hw =
		E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct e1000_adapter *adapter =
		E1000_DEV_PRIVATE(dev->data->dev_private);
	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
	struct rte_intr_handle *intr_handle = pci_dev->intr_handle;
	int ret, mask;
	uint32_t intr_vector = 0;
	uint32_t ctrl_ext;
	uint32_t *speeds;
	int num_speeds;
	bool autoneg;

	PMD_INIT_FUNC_TRACE();

	/*
	 * This function calls into the base driver, which in turn will use
	 * function pointers, which are not guaranteed to be valid in secondary
	 * processes, so avoid using this function in secondary processes.
	 */
	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
		return -E_RTE_SECONDARY;

	/* disable uio/vfio intr/eventfd mapping */
	rte_intr_disable(intr_handle);

	/* Power up the phy. Needed to make the link go Up */
	eth_igb_dev_set_link_up(dev);

	/*
	 * Packet Buffer Allocation (PBA)
	 * Writing PBA sets the receive portion of the buffer
	 * the remainder is used for the transmit buffer.
	 */
	if (hw->mac.type == e1000_82575) {
		uint32_t pba;

		pba = E1000_PBA_32K; /* 32K for Rx, 16K for Tx */
		E1000_WRITE_REG(hw, E1000_PBA, pba);
	}

	/* Put the address into the Receive Address Array */
	e1000_rar_set(hw, hw->mac.addr, 0);

	/* Initialize the hardware */
	if (igb_hardware_init(hw)) {
		PMD_INIT_LOG(ERR, "Unable to initialize the hardware");
		return -EIO;
	}
	adapter->stopped = 0;

	E1000_WRITE_REG(hw, E1000_VET,
			RTE_ETHER_TYPE_VLAN << 16 | RTE_ETHER_TYPE_VLAN);

	ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);