Function main

dpdk/examples/vhost/main.c:1907–2085

* Main function, does initialisation and calls the per-lcore functions. */

 * Main function, does initialisation and calls the per-lcore functions.
 */
int
main(int argc, char *argv[])
{
	unsigned lcore_id, core_id = 0;
	unsigned nb_ports, valid_num_ports;
	int ret, i;
	uint16_t portid;
	rte_thread_t tid;
	uint64_t flags = RTE_VHOST_USER_NET_COMPLIANT_OL_FLAGS;

	signal(SIGINT, sigint_handler);

	/* init EAL */
	ret = rte_eal_init(argc, argv);
	if (ret < 0)
		rte_exit(EXIT_FAILURE, "Error with EAL initialization\n");
	argc -= ret;
	argv += ret;

	/* initialize dma structures */
	reset_dma();

	/* parse app arguments */
	ret = us_vhost_parse_args(argc, argv);
	if (ret < 0)
		rte_exit(EXIT_FAILURE, "Invalid argument\n");

	for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
		TAILQ_INIT(&lcore_info[lcore_id].vdev_list);

		if (rte_lcore_is_enabled(lcore_id))
			lcore_ids[core_id++] = lcore_id;
	}

	if (rte_lcore_count() > RTE_MAX_LCORE)
		rte_exit(EXIT_FAILURE,"Not enough cores\n");

	/* Get the number of physical ports. */
	nb_ports = rte_eth_dev_count_avail();

	/*
	 * Update the global var NUM_PORTS and global array PORTS
	 * and get value of var VALID_NUM_PORTS according to system ports number
	 */
	valid_num_ports = check_ports_num(nb_ports);

	if ((valid_num_ports ==  0) || (valid_num_ports > MAX_SUP_PORTS)) {
		RTE_LOG(INFO, VHOST_PORT, "Current enabled port number is %u,"
			"but only %u port can be enabled\n",num_ports, MAX_SUP_PORTS);
		return -1;
	}

	/*
	 * FIXME: here we are trying to allocate mbufs big enough for
	 * @MAX_QUEUES, but the truth is we're never going to use that
	 * many queues here. We probably should only do allocation for
	 * those queues we are going to use.
	 */