Function ixgbe_dev_stop

dpdk/drivers/net/ixgbe/ixgbe_ethdev.c:2901–2981

* Stop device: disable rx and tx functions to allow for reconfiguring. */

 * Stop device: disable rx and tx functions to allow for reconfiguring.
 */
static int
ixgbe_dev_stop(struct rte_eth_dev *dev)
{
	struct rte_eth_link link;
	struct ixgbe_adapter *adapter = dev->data->dev_private;
	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;
	int vf;
	struct ixgbe_tm_conf *tm_conf =
		IXGBE_DEV_PRIVATE_TO_TM_CONF(dev->data->dev_private);

	if (hw->adapter_stopped)
		return 0;

	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;

	ixgbe_dev_wait_setup_link_complete(dev, 0);

	/* disable interrupts */
	ixgbe_disable_intr(hw);

	/* reset the NIC */
	ixgbe_pf_reset_hw(hw);
	hw->adapter_stopped = 0;

	/* stop adapter */
	ixgbe_stop_adapter(hw);

	for (vf = 0; vfinfo != NULL && vf < pci_dev->max_vfs; vf++)
		vfinfo[vf].clear_to_send = false;

	if (hw->mac.ops.get_media_type(hw) == ixgbe_media_type_copper) {
		/* Turn off the copper */
		ixgbe_set_phy_power(hw, false);
	} else {
		/* Turn off the laser */
		ixgbe_disable_tx_laser(hw);
	}

	ixgbe_dev_clear_queues(dev);

	/* Clear stored conf */
	dev->data->scattered_rx = 0;
	dev->data->lro = 0;

	/* Clear recorded link status */