From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f45.google.com (mail-wm0-f45.google.com [74.125.82.45]) by dpdk.org (Postfix) with ESMTP id A87A45A6C for ; Fri, 26 Aug 2016 16:20:20 +0200 (CEST) Received: by mail-wm0-f45.google.com with SMTP id q128so281414070wma.1 for ; Fri, 26 Aug 2016 07:20:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=6wind-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:user-agent:in-reply-to :references:mime-version:content-transfer-encoding; bh=EVq/NctMedSFyyFzQhbmmhoWAUCu6/+C3ysPh0jzsi0=; b=O5601KcU9Sk6kv5wGYbz9Twyam9JFBnr+PfLGc2csnEs2EhIy03ojN3rqBBKU8Yz7o s4H3oYDPkPQKsy2Jhnnpca42gcs6GRpGkNyAxBM+TEUAQHyVDRNGYi8dTOd+naxK2Yn+ o7RXhe+/EzlDTzXKemJp5ugHr//ThtHsCPBb5rESJZe04rXdznkfsSEtkzIZ58yWaAyW D4P6Rettb0e/KYUbS8nW3rm2dEKxrVhSZAstwHR6M19HxLIv4+xGdkGqPyu+T+Gxam8Y qIq2QKipbNMmimX0IQxOzvGP/6pgMe9mVyJRP0C2Ia777U7XxhyHN/NLYZrkWPfJOf4n fmxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:user-agent :in-reply-to:references:mime-version:content-transfer-encoding; bh=EVq/NctMedSFyyFzQhbmmhoWAUCu6/+C3ysPh0jzsi0=; b=OilzsAeeJD3AmzbwcPBtUsDzqQ1t4V4PBj07sTgi0RFKgMDQeiqpQyhq9Y+YWAO2aE Vz7ALoeSZxV+aVSovu7W3UxkAUKvfrLgNdI23ujtNF6AsZWfNJWuFc1VF7PcL8256tFU P8Th7dpoQcp/fYyGrWPGiYtKtZsD4PCq/YEiRl2gTgDYYOsH73z8sBu8dd6jhfRYmqaU RuBrsKJb0m3m82S5iTi6VhgpkbxQ2X0iwicpI4fGv+hqdhhiKy2IScXfUIlKET+76uOS hh5LqH6uahPUzXcKR7Pa3VHBgH8Bg0IDnMZkbW0QEDY6J6j9zY1giewlgUKJcbDuWzxd WPXA== X-Gm-Message-State: AE9vXwMfk5XrwtBz+wi85YChMMwSJcTsVFd76sBSlgdF2n8dv1/VGvSkss3+IT3CXxfPe1wn X-Received: by 10.194.58.196 with SMTP id t4mr4234888wjq.110.1472221220405; Fri, 26 Aug 2016 07:20:20 -0700 (PDT) Received: from xps13.localnet (184.203.134.77.rev.sfr.net. [77.134.203.184]) by smtp.gmail.com with ESMTPSA id b130sm20880114wmg.19.2016.08.26.07.20.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 26 Aug 2016 07:20:19 -0700 (PDT) From: Thomas Monjalon To: Jianbo Liu Cc: dev@dpdk.org, helin.zhang@intel.com, jingjing.wu@intel.com, jerin.jacob@caviumnetworks.com Date: Fri, 26 Aug 2016 16:20:18 +0200 Message-ID: <5549852.k8GMpo7ItU@xps13> User-Agent: KMail/4.14.10 (Linux/4.5.4-1-ARCH; KDE/4.14.11; x86_64; ; ) In-Reply-To: <1472032425-16136-3-git-send-email-jianbo.liu@linaro.org> References: <1472032425-16136-1-git-send-email-jianbo.liu@linaro.org> <1472032425-16136-3-git-send-email-jianbo.liu@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Subject: Re: [dpdk-dev] [PATCH 2/5] i40e: implement vector PMD for ARM architecture X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Aug 2016 14:20:20 -0000 Hi Jianbo (and other developers of vectorized PMDs), 2016-08-24 15:23, Jianbo Liu: > Use ARM NEON intrinsic to implement i40e vPMD Have you tried to use the generic SIMD intrinsics? We could maintain only one vectorized implementation by using __attribute__ ((vector_size (n))) as described in https://gcc.gnu.org/onlinedocs/gcc/Vector-Extensions.html I don't know the limitations of the vector builtins (support, performance, endianness, etc) but it is worth making a try. Currently we target to support each PMD for SSE/AVX, Altivec and NEON. Is there any volunteers working on Intel, POWER and ARM to try converting the existing codebase? Thanks