From 5e470a6654e1c90066ce4e96dc26798093c34d6e Mon Sep 17 00:00:00 2001 From: Andriy Berestovskyy Date: Mon, 10 Apr 2017 16:30:54 +0200 Subject: [PATCH] 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 --- examples/ip_fragmentation/main.c | 8 ++++++-- examples/ip_reassembly/main.c | 6 +++++- examples/ipv4_multicast/main.c | 8 ++++++-- 3 files changed, 17 insertions(+), 5 deletions(-) diff --git a/examples/ip_fragmentation/main.c b/examples/ip_fragmentation/main.c index 815b22532e..71c1d12fc4 100644 --- a/examples/ip_fragmentation/main.c +++ b/examples/ip_fragmentation/main.c @@ -168,7 +168,7 @@ struct lcore_queue_conf { } __rte_cache_aligned; 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, @@ -915,6 +915,11 @@ 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) { @@ -980,7 +985,6 @@ main(int argc, char **argv) printf("txq=%u,%d ", 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, diff --git a/examples/ip_reassembly/main.c b/examples/ip_reassembly/main.c index b1da7a1e46..c0f3ced6d2 100644 --- a/examples/ip_reassembly/main.c +++ b/examples/ip_reassembly/main.c @@ -1063,6 +1063,11 @@ 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) { @@ -1129,7 +1134,6 @@ main(int argc, char **argv) printf("txq=%u,%d,%d ", lcore_id, queueid, socket); fflush(stdout); - rte_eth_dev_info_get(portid, &dev_info); txconf = &dev_info.default_txconf; txconf->txq_flags = 0; diff --git a/examples/ipv4_multicast/main.c b/examples/ipv4_multicast/main.c index af59d2d307..96a4ab6e7c 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, -- 2.20.1