Function i40e_dev_start

dpdk/drivers/net/i40e/i40e_ethdev.c:2319–2498

}

static int
i40e_dev_start(struct rte_eth_dev *dev)
{
	struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private);
	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct i40e_vsi *main_vsi = pf->main_vsi;
	int ret, i;
	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(dev);
	struct rte_intr_handle *intr_handle = pci_dev->intr_handle;
	uint32_t intr_vector = 0;
	struct i40e_vsi *vsi;
	uint16_t nb_rxq, nb_txq;
	uint16_t max_frame_size;

	hw->adapter_stopped = 0;

	rte_intr_disable(intr_handle);

	if ((rte_intr_cap_multiple(intr_handle) ||
	     !RTE_ETH_DEV_SRIOV(dev).active) &&
	    dev->data->dev_conf.intr_conf.rxq != 0) {
		intr_vector = dev->data->nb_rx_queues;
		ret = rte_intr_efd_enable(intr_handle, intr_vector);
		if (ret)
			return ret;
	}

	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;
		}
	}

	/* Initialize VSI */
	ret = i40e_dev_rxtx_init(pf);
	if (ret != I40E_SUCCESS) {
		PMD_DRV_LOG(ERR, "Failed to init rx/tx queues");
		return ret;
	}

	/* Map queues with MSIX interrupt */
	main_vsi->nb_used_qps = dev->data->nb_rx_queues -
		pf->nb_cfg_vmdq_vsi * RTE_LIBRTE_I40E_QUEUE_NUM_PER_VM;
	ret = i40e_vsi_queues_bind_intr(main_vsi, I40E_ITR_INDEX_DEFAULT);
	if (ret < 0)
		return ret;
	i40e_vsi_enable_queues_intr(main_vsi);

	/* Map VMDQ VSI queues with MSIX interrupt */
	for (i = 0; i < pf->nb_cfg_vmdq_vsi; i++) {
		pf->vmdq[i].vsi->nb_used_qps = RTE_LIBRTE_I40E_QUEUE_NUM_PER_VM;
		ret = i40e_vsi_queues_bind_intr(pf->vmdq[i].vsi,
						I40E_ITR_INDEX_DEFAULT);
		if (ret < 0)