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feat: add link status check after DPDK port initialization

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Wait up to 1s for PHY auto-negotiation after rte_eth_dev_start.
Reports link speed or 'link DOWN (no carrier)' to help diagnose
physical connectivity issues.

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
wxj
2026-07-01 13:47:27 +00:00
co-authored by Claude
parent 9a596e65e1
commit ec4f3ee036
1 changed files with 14 additions and 1 deletions
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src/tcp_core.c
+14 -1
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@@ -888,5 +888,18 @@ void ng_init_port(struct rte_mempool *mbuf_pool)
rte_eth_promiscuous_enable(gDpdkPortId); rte_eth_promiscuous_enable(gDpdkPortId);
printf("[DPDK] Port %d initialized\n", gDpdkPortId); /* Wait for link up — PHY auto-negotiation takes 1-3 seconds */
struct rte_eth_link link;
int link_retries = 10;
while (link_retries-- > 0) {
memset(&link, 0, sizeof(link));
rte_eth_link_get(gDpdkPortId, &link);
if (link.link_status) break;
rte_delay_ms(100);
}
if (link.link_status)
printf("[DPDK] Port %d initialized, link %u Mbps\n",
gDpdkPortId, link.link_speed);
else
printf("[DPDK] Port %d initialized, link DOWN (no carrier)\n", gDpdkPortId);
} }