From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by smtp.lore.kernel.org (Postfix) with ESMTP id 54494FEA800 for ; Thu, 26 Mar 2026 03:28:06 +0000 (UTC) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 5035C40DCE; Thu, 26 Mar 2026 04:28:05 +0100 (CET) Received: from mail-dy1-f176.google.com (mail-dy1-f176.google.com [74.125.82.176]) by mails.dpdk.org (Postfix) with ESMTP id 35278402C4 for ; Thu, 26 Mar 2026 04:28:03 +0100 (CET) Received: by mail-dy1-f176.google.com with SMTP id 5a478bee46e88-2c160308a54so1297920eec.0 for ; Wed, 25 Mar 2026 20:28:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1774495682; x=1775100482; darn=dpdk.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=km0s8Pl5bdFjT0J9YpOX/Eh5GF2iytr6UJ5p5B3KlT0=; b=O3TLiE/P6mSOtdNMm3mtSaEeslNaQkVOUjybHUtkS9eTghCyYwSK5zmRk5dU1NFSw6 u5dKF3NKg1UIKxzAP9JNbglCPXzp/h0uf6Sqt6SdNG33OgJmVmY3K/KPx9vyH0h2B3qg m+Ap1oRIFvkfPVdT25TxUPBo4vEugES4JgzlvyU92sJnk8EyNm5gvpvt6UOoAy9dtuaV QZn3m0/uOs75lV8c57e4mEVnLzxlaqz9rLOtcWd31CQN/1mf8jr4uHdifolda007+Oxk rz1UGtnKnOdZnna2FY767YtKPQmOefAUODYnLBtdd8/HrUHPoaS1wOR637aNRU16EM4d NKLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1774495682; x=1775100482; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=km0s8Pl5bdFjT0J9YpOX/Eh5GF2iytr6UJ5p5B3KlT0=; b=OalRvrf5EOO9f6OCcTlqnt1yzrxuvA02YMiA/O66RfINHBNygdgolydVR7EstuzdF4 Ec1eKhsGDHg0Y9vxO0oWNwmnNQX/rYBIvSUdYQoUGm2mHcv19NQ3isO0dU+OvVIB06Hr mQuuoKxhohHKxbMfhbSgfFVm8GOt7fdinjciWWSFNcrlFGV7xGxNhEdqVJzMSHXZQUOQ 1kSlCOCm5/xSOsp5vXxW1rVQzeRgH+rhi4r2BS0I+hz/mQFWrpE5vza+sYc5FIxuWA8x Qi98Yko1WEERo7lkdAVLu9un8tP0/n26Ut8jse6CPn8QG3/+ig4k+Sy49Y0zC+Xxhr8Y CJ1Q== X-Gm-Message-State: AOJu0YyrbxEBqRwl0yVz0CSs5PFJRjJypIC8szryFafgF2HlenerWJPQ kmpcrgF48gCodcFmXSl/FCM2LRusdtYQbvUGy9/AirOG/hxf6MW+Z9URobWSZhD5KKk= X-Gm-Gg: ATEYQzxGOM5ST+yqH2sWoE5oqOtL9gtJPaJ6dNJjz7QVcqpCfB8xHy+xootH+wQnhGv 3AJjY+iZIaCJr6fFjtAGk6066AnIBiGuFbsnie64OiASrAQc0lYDIpMSc31CbfNv3i1w+RQGPA2 g3uNc98KCwIJFqqX4Pm5f69cRXf/fdgABsPgIxemAipGrgZeNi/FI3odv7YGoYd+7i6nYUBkw18 OUg3YnZmUVasSlsADxCbciruYi0bKPJpENy0E2WfkqwDJ2Y7tXkuLYeowiyoY8YhC1ZrlezseqX te603RLEbYN7PiGR/MyfNSO+3R0Jkyog7NldJn+AhgennMiybAlPq93SE1y46i86lJHMAcYtRi8 SFAfmBpiXFuzVjwDZs3KSeMG4SBJjQS3ei5jxRcXJ/hpXj2fWHhC99RfQLpBQ6+SENkdyhpTEtr /Yn8k7qBsp8GvU6h1LQI/m33saroYB5EEdSOw= X-Received: by 2002:a05:7300:ed18:b0:2a4:3593:645b with SMTP id 5a478bee46e88-2c15d290e90mr3296392eec.11.1774495681995; Wed, 25 Mar 2026 20:28:01 -0700 (PDT) Received: from phoenix.local ([104.202.29.139]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2c16ec495b8sm1462055eec.10.2026.03.25.20.28.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Mar 2026 20:28:01 -0700 (PDT) Date: Wed, 25 Mar 2026 20:27:59 -0700 From: Stephen Hemminger To: Junlong Wang Cc: dev@dpdk.org Subject: Re: [PATCH v1] net/zxdh: optimize Rx/Tx path performance Message-ID: <20260325202759.301e70b3@phoenix.local> In-Reply-To: <20260326022828.998541-1-wang.junlong1@zte.com.cn> References: <20260326022828.998541-1-wang.junlong1@zte.com.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org On Thu, 26 Mar 2026 10:28:28 +0800 Junlong Wang wrote: > This patch optimizes the ZXDH PMD's receive and transmit path for better > performance through several improvements: > > - Add simple TX/RX burst functions (zxdh_xmit_pkts_simple and > zxdh_recv_single_pkts) for single-segment packet scenarios. > - Remove RX software ring (sw_ring) to reduce memory allocation and > copy. > - Optimize descriptor management with prefetching and simplified > cleanup. > - Reorganize structure fields for better cache locality. > > These changes reduce CPU cycles and memory bandwidth consumption, > resulting in improved packet processing throughput. > > Signed-off-by: Junlong Wang > --- Two late for new features in 26.03, will look at it for 26.07