Function configure_eth_port

dpdk/examples/packet_ordering/main.c:276–347

}

static inline int
configure_eth_port(uint16_t port_id)
{
	struct rte_ether_addr addr;
	const uint16_t rxRings = 1, txRings = 1;
	int ret;
	uint16_t q;
	uint16_t nb_rxd = RX_DESC_PER_QUEUE;
	uint16_t nb_txd = TX_DESC_PER_QUEUE;
	struct rte_eth_dev_info dev_info;
	struct rte_eth_txconf txconf;
	struct rte_eth_conf port_conf = port_conf_default;

	if (!rte_eth_dev_is_valid_port(port_id))
		return -1;

	ret = rte_eth_dev_info_get(port_id, &dev_info);
	if (ret != 0) {
		printf("Error during getting device (port %u) info: %s\n",
				port_id, strerror(-ret));
		return ret;
	}

	if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
		port_conf.txmode.offloads |=
			RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
	ret = rte_eth_dev_configure(port_id, rxRings, txRings, &port_conf);
	if (ret != 0)
		return ret;

	ret = rte_eth_dev_adjust_nb_rx_tx_desc(port_id, &nb_rxd, &nb_txd);
	if (ret != 0)
		return ret;

	for (q = 0; q < rxRings; q++) {
		ret = rte_eth_rx_queue_setup(port_id, q, nb_rxd,
				rte_eth_dev_socket_id(port_id), NULL,
				mbuf_pool);
		if (ret < 0)
			return ret;
	}

	txconf = dev_info.default_txconf;
	txconf.offloads = port_conf.txmode.offloads;
	for (q = 0; q < txRings; q++) {
		ret = rte_eth_tx_queue_setup(port_id, q, nb_txd,
				rte_eth_dev_socket_id(port_id), &txconf);
		if (ret < 0)
			return ret;
	}

	ret = rte_eth_dev_start(port_id);
	if (ret < 0)
		return ret;

	ret = rte_eth_macaddr_get(port_id, &addr);
	if (ret != 0) {
		printf("Failed to get MAC address (port %u): %s\n",