From 9758b956dcf493e9cb73c965c791d2a50407ae6b Mon Sep 17 00:00:00 2001 From: Ali Alnubani Date: Mon, 6 May 2019 09:49:10 +0000 Subject: [PATCH] examples/ip_fragmentation: fix Tx queues init The application tries to configure queue ids larger than the maximum allowed by MAX_TX_QUEUE_PER_PORT. This causes the startup error: " ... Initializing port 0 on lcore 0... Address:7C:FE:90:12:23:0D txq=0,0 txq=1,1 txq=2,2 txq=3,3 txq=4,4 txq=5,5 txq=6,6 txq=7,7 txq=8,8 txq=9,9 txq=10,10 txq=11,11 txq=12,12 txq=13,13 txq=14,14 txq=15,15 txq=16,16 Invalid TX queue_id=16 EAL: Error - exiting with code: 1 Cause: rte_eth_tx_queue_setup: err=-22, port=0 " The error reproduces when lcores aren't set, and when the machine has more than 16 cores. Fixes: af75078fece3 ("first public release") Cc: stable@dpdk.org Signed-off-by: Ali Alnubani --- examples/ip_fragmentation/main.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/examples/ip_fragmentation/main.c b/examples/ip_fragmentation/main.c index a5101fa911..85c0100f79 100644 --- a/examples/ip_fragmentation/main.c +++ b/examples/ip_fragmentation/main.c @@ -989,6 +989,9 @@ main(int argc, char **argv) if (rte_lcore_is_enabled(lcore_id) == 0) continue; + if (queueid >= rte_eth_devices[portid].data->nb_tx_queues) + break; + socket = (int) rte_lcore_to_socket_id(lcore_id); printf("txq=%u,%d ", lcore_id, queueid); fflush(stdout); -- 2.20.1