examples: update link status checks

[dpdk.git] / examples / ipv4_frag / main.c

diff --git a/examples/ipv4_frag/main.c b/examples/ipv4_frag/main.c
index a790d93..cc1e51b 100644 (file)
--- a/examples/ipv4_frag/main.c
+++ b/examples/ipv4_frag/main.c
@@ -512,11 +512,65 @@ print_ethaddr(const char *name, struct ether_addr *eth_addr)
               eth_addr->addr_bytes[5]);
 }
 
+/* Check the link status of all ports in up to 9s, and print them finally */
+static void
+check_all_ports_link_status(uint8_t port_num, uint32_t port_mask)
+{
+#define CHECK_INTERVAL 100 /* 100ms */
+#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
+       uint8_t portid, count, all_ports_up, print_flag = 0;
+       struct rte_eth_link link;
+
+       printf("\nChecking link status");
+       fflush(stdout);
+       for (count = 0; count <= MAX_CHECK_TIME; count++) {
+               all_ports_up = 1;
+               for (portid = 0; portid < port_num; portid++) {
+                       if ((port_mask & (1 << portid)) == 0)
+                               continue;
+                       memset(&link, 0, sizeof(link));
+                       rte_eth_link_get_nowait(portid, &link);
+                       /* print link status if flag set */
+                       if (print_flag == 1) {
+                               if (link.link_status)
+                                       printf("Port %d Link Up - speed %u "
+                                               "Mbps - %s\n", (uint8_t)portid,
+                                               (unsigned)link.link_speed,
+                               (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
+                                       ("full-duplex") : ("half-duplex\n"));
+                               else
+                                       printf("Port %d Link Down\n",
+                                                       (uint8_t)portid);
+                               continue;
+                       }
+                       /* clear all_ports_up flag if any link down */
+                       if (link.link_status == 0) {
+                               all_ports_up = 0;
+                               break;
+                       }
+               }
+               /* after finally printing all link status, get out */
+               if (print_flag == 1)
+                       break;
+
+               if (all_ports_up == 0) {
+                       printf(".");
+                       fflush(stdout);
+                       rte_delay_ms(CHECK_INTERVAL);
+               }
+
+               /* set the print_flag if all ports up or timeout */
+               if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
+                       print_flag = 1;
+                       printf("done\n");
+               }
+       }
+}
+
 int
 MAIN(int argc, char **argv)
 {
        struct lcore_queue_conf *qconf;
-       struct rte_eth_link link;
        int ret;
        unsigned nb_ports, i;
        uint16_t queueid = 0;
@@ -651,21 +705,12 @@ MAIN(int argc, char **argv)
 
                printf("done: ");
 
-               /* get link status */
-               rte_eth_link_get(portid, &link);
-               if (link.link_status) {
-                       printf(" Link Up - speed %u Mbps - %s\n",
-                              (uint32_t) link.link_speed,
-                              (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
-                              ("full-duplex") : ("half-duplex\n"));
-               } else {
-                       printf(" Link Down\n");
-               }
-
                /* Set port in promiscuous mode */
                rte_eth_promiscuous_enable(portid);
        }
 
+       check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
+
        /* create the LPM table */
        l3fwd_lpm = rte_lpm_create("L3FWD_LPM", SOCKET0, L3FWD_LPM_MAX_RULES, 0);
        if (l3fwd_lpm == NULL)