Function check_link_status

dpdk/examples/dma/dmafwd.c:770–800

check link status, return true if at least one port is up */

/* check link status, return true if at least one port is up */
static int
check_link_status(uint32_t port_mask)
{
	uint16_t portid;
	struct rte_eth_link link;
	int ret, link_status = 0;
	char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];

	printf("\nChecking link status\n");
	RTE_ETH_FOREACH_DEV(portid) {
		if ((port_mask & (1 << portid)) == 0)
			continue;

		memset(&link, 0, sizeof(link));
		ret = rte_eth_link_get(portid, &link);
		if (ret < 0) {
			printf("Port %u link get failed: err=%d\n",
					portid, ret);
			continue;
		}

		/* Print link status */
		rte_eth_link_to_str(link_status_text,
			sizeof(link_status_text), &link);
		printf("Port %d %s\n", portid, link_status_text);

		if (link.link_status)
			link_status = 1;
	}
	return link_status;
}

/* Configuration of device. 8< */
static void