Function igbvf_dev_start

dpdk/drivers/net/e1000/igb_ethdev.c:3376–3442

}

static int
igbvf_dev_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;
	uint32_t intr_vector = 0;

	/*
	 * 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;

	PMD_INIT_FUNC_TRACE();

	hw->mac.ops.reset_hw(hw);
	adapter->stopped = 0;

	/* Set all vfta */
	igbvf_set_vfta_all(dev,1);

	eth_igbvf_tx_init(dev);

	/* This can fail when allocating mbufs for descriptor rings */
	ret = eth_igbvf_rx_init(dev);
	if (ret) {
		PMD_INIT_LOG(ERR, "Unable to initialize RX hardware");
		igb_dev_clear_queues(dev);
		return ret;
	}

	/* check and configure queue intr-vector mapping */
	if (rte_intr_cap_multiple(intr_handle) &&
	    dev->data->dev_conf.intr_conf.rxq) {
		intr_vector = dev->data->nb_rx_queues;
		ret = rte_intr_efd_enable(intr_handle, intr_vector);
		if (ret)
			return ret;
	}

	/* Allocate the vector list */
	if (rte_intr_dp_is_en(intr_handle)) {
		if (rte_intr_vec_list_alloc(intr_handle, "intr_vec",
						   dev->data->nb_rx_queues)) {
			PMD_INIT_LOG(ERR, "Failed to allocate %d rx_queues"
				     " intr_vec", dev->data->nb_rx_queues);
			return -ENOMEM;
		}
	}

	eth_igbvf_configure_msix_intr(dev);