This fixes the issue of v4 RSS configuration failure in vmxnet3_v4_rss_configure while writing to BAR register. It's very specific to single queue conifuguration.
Ref: https://mails.dpdk.org/archives/users/2025-April/008236.html Bugzilla ID:1789 Cc: [email protected] Signed-off-by: Amiya Ranjan Mohakud <[email protected]> --- drivers/net/vmxnet3/vmxnet3_ethdev.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c index f4cdb1bb31..fee4c23091 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethdev.c +++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c @@ -534,6 +534,12 @@ vmxnet3_dev_configure(struct rte_eth_dev *dev) PMD_INIT_FUNC_TRACE(); + /* Disabling RSS for single queue pair */ + if (dev->data->nb_rx_queues == 1) { + dev->data->dev_conf.rxmode.mq_mode = ETH_MQ_RX_NONE; + PMD_INIT_LOG(ERR, "WARN: Disabling RSS for single Rx queue"); + } + if (dev->data->dev_conf.rxmode.mq_mode & RTE_ETH_MQ_RX_RSS_FLAG) dev->data->dev_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_RSS_HASH; -- 2.39.5 (Apple Git-154)
