Function rte_eth_dev_release_port

dpdk/lib/ethdev/ethdev_driver.c:225–279

}

int
rte_eth_dev_release_port(struct rte_eth_dev *eth_dev)
{
	int ret;

	if (eth_dev == NULL)
		return -EINVAL;

	rte_spinlock_lock(rte_mcfg_ethdev_get_lock());
	if (eth_dev_shared_data_prepare() == NULL)
		ret = -EINVAL;
	else
		ret = 0;
	rte_spinlock_unlock(rte_mcfg_ethdev_get_lock());
	if (ret != 0)
		return ret;

	if (eth_dev->state != RTE_ETH_DEV_UNUSED)
		rte_eth_dev_callback_process(eth_dev,
				RTE_ETH_EVENT_DESTROY, NULL);

	eth_dev_fp_ops_reset(rte_eth_fp_ops + eth_dev->data->port_id);

	rte_spinlock_lock(rte_mcfg_ethdev_get_lock());

	eth_dev->state = RTE_ETH_DEV_UNUSED;
	eth_dev->device = NULL;
	eth_dev->process_private = NULL;
	eth_dev->intr_handle = NULL;
	eth_dev->rx_pkt_burst = NULL;
	eth_dev->tx_pkt_burst = NULL;
	eth_dev->tx_pkt_prepare = NULL;
	eth_dev->rx_queue_count = NULL;
	eth_dev->rx_descriptor_status = NULL;
	eth_dev->tx_descriptor_status = NULL;
	eth_dev->dev_ops = NULL;

	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
		rte_free(eth_dev->data->rx_queues);
		rte_free(eth_dev->data->tx_queues);
		rte_free(eth_dev->data->mac_addrs);
		rte_free(eth_dev->data->hash_mac_addrs);
		rte_free(eth_dev->data->dev_private);
		pthread_mutex_destroy(&eth_dev->data->flow_ops_mutex);
		memset(eth_dev->data, 0, sizeof(struct rte_eth_dev_data));
		eth_dev->data = NULL;

		eth_dev_shared_data->allocated_ports--;
		eth_dev_shared_data_release();
	}

	rte_spinlock_unlock(rte_mcfg_ethdev_get_lock());

	return 0;
}

int
rte_eth_dev_create(struct rte_device *device, const char *name,