examples: limit max frame size

[dpdk.git] / examples / ipv4_multicast / main.c

diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
index af59d2d..96a4ab6 100644 (file)
--- a/examples/ipv4_multicast/main.c
+++ b/examples/ipv4_multicast/main.c
@@ -137,7 +137,7 @@ struct lcore_queue_conf {
 } __rte_cache_aligned;
 static struct lcore_queue_conf lcore_queue_conf[RTE_MAX_LCORE];
 
-static const struct rte_eth_conf port_conf = {
+static struct rte_eth_conf port_conf = {
        .rxmode = {
                .max_rx_pkt_len = JUMBO_FRAME_MAX_SIZE,
                .split_hdr_size = 0,
@@ -725,6 +725,11 @@ main(int argc, char **argv)
 
                qconf = &lcore_queue_conf[rx_lcore_id];
 
+               /* limit the frame size to the maximum supported by NIC */
+               rte_eth_dev_info_get(portid, &dev_info);
+               port_conf.rxmode.max_rx_pkt_len = RTE_MIN(
+                   dev_info.max_rx_pktlen, port_conf.rxmode.max_rx_pkt_len);
+
                /* get the lcore_id for this port */
                while (rte_lcore_is_enabled(rx_lcore_id) == 0 ||
                       qconf->n_rx_queue == (unsigned)rx_queue_per_lcore) {
@@ -777,7 +782,6 @@ main(int argc, char **argv)
                        printf("txq=%u,%hu ", lcore_id, queueid);
                        fflush(stdout);
 
-                       rte_eth_dev_info_get(portid, &dev_info);
                        txconf = &dev_info.default_txconf;
                        txconf->txq_flags = 0;
                        ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,