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authorAndriy Berestovskyy <andriy.berestovskyy@caviumnetworks.com>2017-04-10 16:30:54 +0200
committerThomas Monjalon <thomas@monjalon.net>2017-04-21 02:21:29 +0200
commit5e470a6654e1c90066ce4e96dc26798093c34d6e (patch)
treea664637ffd5f7c6fcdc8b55028e5cf5629880dd4 /examples/ipv4_multicast
parent871b8b8c7d44fce50ccda5721f0d063f62451f39 (diff)
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examples: limit max frame size
Some PMDs do not support 9,5K jumbo frames, so the example fails. Limit the frame size to the maximum supported by the underlying NIC. Signed-off-by: Andriy Berestovskyy <andriy.berestovskyy@caviumnetworks.com>
Diffstat (limited to 'examples/ipv4_multicast')
-rw-r--r--examples/ipv4_multicast/main.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c
index af59d2d..96a4ab6 100644
--- 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,