Function ixgbe_dev_start

dpdk/drivers/net/ixgbe/ixgbe_ethdev.c:2602–2896

* Configure device link speed and setup link. * It returns 0 on success. */

 * It returns 0 on success.
 */
static int
ixgbe_dev_start(struct rte_eth_dev *dev)
{
	struct ixgbe_hw *hw =
		IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
	struct ixgbe_vf_info *vfinfo =
		*IXGBE_DEV_PRIVATE_TO_P_VFDATA(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;
	uint32_t intr_vector = 0;
	int err;
	bool link_up = false, negotiate = 0;
	uint32_t speed = 0;
	uint32_t allowed_speeds = 0;
	int mask = 0;
	int status;
	uint16_t vf, idx;
	uint32_t *link_speeds;
	struct ixgbe_tm_conf *tm_conf =
		IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private);
	struct ixgbe_macsec_setting *macsec_setting =
		IXGBE_DEV_PRIVATE_TO_MACSEC_SETTING(dev->data->dev_private);

	/*
	 * 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();

	/* Stop the link setup handler before resetting the HW. */
	ixgbe_dev_wait_setup_link_complete(dev, 0);

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

	/* stop adapter */
	hw->adapter_stopped = 0;
	ixgbe_stop_adapter(hw);

	/* reinitialize adapter
	 * this calls reset and start
	 */
	status = ixgbe_pf_reset_hw(hw);
	if (status != 0)
		return -1;
	hw->mac.ops.start_hw(hw);
	hw->mac.get_link_status = true;

	/* configure PF module if SRIOV enabled */
	ixgbe_pf_host_configure(dev);

	ixgbe_dev_phy_intr_setup(dev);

	/* check and configure queue intr-vector mapping */