From: Dapeng Yu Date: Wed, 23 Dec 2020 05:30:18 +0000 (+0800) Subject: net/ice: check Rx queue number on RSS init X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=bfa4f648728a742f0b38edb628e2978fa5721b01;p=dpdk.git net/ice: check Rx queue number on RSS init When RSS is initialized, rx queues number is used as denominator to set default value into the RSS lookup table. If it is zero, there will be error of being divided by 0. So add value check to avoid the error. Fixes: 50370662b727 ("net/ice: support device and queue ops") Cc: stable@dpdk.org Signed-off-by: Dapeng Yu Acked-by: Qi Zhang --- diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index 9a5d6a559f..bbb8c14606 100644 --- a/drivers/net/ice/ice_ethdev.c +++ b/drivers/net/ice/ice_ethdev.c @@ -3182,6 +3182,12 @@ static int ice_init_rss(struct ice_pf *pf) vsi->rss_key_size = ICE_AQC_GET_SET_RSS_KEY_DATA_RSS_KEY_SIZE; vsi->rss_lut_size = pf->hash_lut_size; + if (nb_q == 0) { + PMD_DRV_LOG(WARNING, + "RSS is not supported as rx queues number is zero\n"); + return 0; + } + if (is_safe_mode) { PMD_DRV_LOG(WARNING, "RSS is not supported in safe mode\n"); return 0;