[dpdk-dev] [PATCH 04/11] net/bnxt: update number of queues per vnic in single queue mode
Kalesh A P
kalesh-anakkur.purayil at broadcom.com
Wed Feb 24 16:55:46 CET 2021
From: Venkat Duvvuru <venkatkumar.duvvuru at broadcom.com>
bp->rx_num_qs_per_vnic is not initialized in the single queue mode.
As a result of this when an interface is reconfigured to single
queue mode from an existing multiqueue mode, bp->rx_num_qs_per_vnic
is not updated to the value of 1. Hence, the driver will try to
access more than one queue resulting in a crash.
This patch fixes it by initializing bp->rx_num_qs_per_vnic in the
single queue mode as well.
Fixes: 36024b2e7fe5 ("net/bnxt: allow dynamic creation of VNIC")
Cc: stable at dpdk.org
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru at broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur at broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Ajit Kumar Khaparde <ajit.khaparde at broadcom.com>
---
drivers/net/bnxt/bnxt_rxq.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/bnxt/bnxt_rxq.c b/drivers/net/bnxt/bnxt_rxq.c
index f46b10c..53a9b52 100644
--- a/drivers/net/bnxt/bnxt_rxq.c
+++ b/drivers/net/bnxt/bnxt_rxq.c
@@ -106,7 +106,6 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
pools = RTE_MIN(pools, bp->rx_cp_nr_rings);
nb_q_per_grp = bp->rx_cp_nr_rings / pools;
- bp->rx_num_qs_per_vnic = nb_q_per_grp;
PMD_DRV_LOG(DEBUG, "pools = %u nb_q_per_grp = %u\n",
pools, nb_q_per_grp);
start_grp_id = 0;
@@ -165,6 +164,8 @@ int bnxt_mq_rx_configure(struct bnxt *bp)
}
out:
+ bp->rx_num_qs_per_vnic = nb_q_per_grp;
+
if (dev_conf->rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
struct rte_eth_rss_conf *rss = &dev_conf->rx_adv_conf.rss_conf;
--
2.10.1
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