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Thu, 23 Oct 2025 17:36:40 -0700 (PDT) X-Received: by 2002:a05:620a:2807:b0:854:b9a1:b478 with SMTP id af79cd13be357-8906e0dad88mr3256807985a.18.1761266200177; Thu, 23 Oct 2025 17:36:40 -0700 (PDT) Received: from [10.211.11.251] ([192.19.50.250]) by smtp.gmail.com with ESMTPSA id af79cd13be357-89c1169a918sm273676485a.39.2025.10.23.17.36.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 23 Oct 2025 17:36:38 -0700 (PDT) Message-ID: <8e750656-787c-4dce-8cbe-241e7929d2a0@broadcom.com> Date: Thu, 23 Oct 2025 17:36:37 -0700 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] net/vmxnet3: disable RSS for single queue configuration for ESX8.0+ versions To: Amiya Ranjan Mohakud , dev@dpdk.org Cc: stable@dpdk.org References: <20251022155651.9818-1-amiyaranjan.mohakud@gmail.com> <20251023083019.18792-1-amiyaranjan.mohakud@gmail.com> Content-Language: en-US From: Jochen Behrens In-Reply-To: <20251023083019.18792-1-amiyaranjan.mohakud@gmail.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-DetectorID-Processed: b00c1d49-9d2e-4205-b15f-d015386d3d5e X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Acked-by: Jochen Behrens On 10/23/25 01:30, Amiya Ranjan Mohakud wrote: > It 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 configuration. > > https://mails.dpdk.org/archives/users/2025-April/008236.html > > Bugzilla ID:1789 > Fixes: 52ec00fd1474e8 ("net/vmxnet3: fix RSS setting on v4") > Cc: stable@dpdk.org > > v2: > - Fixed typo in commit message > v3: > - Checking if RSS is already enabled > > Signed-off-by: Amiya Ranjan Mohakud > --- > drivers/net/vmxnet3/vmxnet3_ethdev.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/net/vmxnet3/vmxnet3_ethdev.c b/drivers/net/vmxnet3/vmxnet3_ethdev.c > index f4cdb1bb31..a0306af86c 100644 > --- a/drivers/net/vmxnet3/vmxnet3_ethdev.c > +++ b/drivers/net/vmxnet3/vmxnet3_ethdev.c > @@ -534,6 +534,13 @@ 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 == RTE_ETH_MQ_RX_RSS) { > + dev->data->dev_conf.rxmode.mq_mode = RTE_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; >