From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 42E3BA09D9; Wed, 11 Nov 2020 16:45:47 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 1C32F2BAB; Wed, 11 Nov 2020 16:45:45 +0100 (CET) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [63.128.21.124]) by dpdk.org (Postfix) with ESMTP id 76E86F90 for ; Wed, 11 Nov 2020 16:45:42 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1605109540; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=dhPMdhiEPJZyx61Iyqwc4TRECHMy77TBKig4gb4VWRk=; b=FUyshvX6CehlCXlYK+xPEIT8eA+fr2GOUJCwe8EnFeNv2SA2ntygJSeumjNYwl1YhMtYJE 35ns5hO4hwh1mfq5EWiJNWCEjF21aGj/1zUq7eohXkM2BmMSYzSB+zgT+/J17vlUvTdvzT Ss4rjuLalezS06Dtg8tNenf+8z71KSc= Received: from mail-vk1-f200.google.com (mail-vk1-f200.google.com [209.85.221.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-66-iel9M71tPV6tw5XL7xoJgQ-1; Wed, 11 Nov 2020 10:45:37 -0500 X-MC-Unique: iel9M71tPV6tw5XL7xoJgQ-1 Received: by mail-vk1-f200.google.com with SMTP id q62so179127vka.22 for ; Wed, 11 Nov 2020 07:45:37 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=dhPMdhiEPJZyx61Iyqwc4TRECHMy77TBKig4gb4VWRk=; b=adgCFSsnUTbcoMkn5lMMvmizz9F62ZQw0sFTnrGwSjkf+w7Yr6rNHvwLU1c+3rJy14 N4wmJwFZIttU6SIt84Y1kIzIYcRDoCLqpoBv81kWhKoNI7k4z2o3w0dfEERpSYMWTqJ8 M4RuSyUnqr5lvbIf7nJEo+FutLydef5455AYiQROueHqCntDVmsFNwC7rZFY/uf7aejB jnb15Z6LJPpfLddIOOSQJ7WU8xSRiJAHmLWx4D68TFYJrXWUl5j5on0mWiB85+YqS6HC kiA8ZhQ3HEJYqNtX2QDJTppWweBQ5a+BMaPuG6oAWj0k8wTgVtR0IONEYXuujV1BuQ4L purw== X-Gm-Message-State: AOAM531CrKC9ipXAhf6CNJIcxP0/UYYP+zuFOo543VpR68wKyMdPnAjB vyd0T7WFRi5bKpHS0hDoK8FTI/DNYTK7AZ+uPHQcCBA/6oQEnI8NqLj/KB/+otobPk/kruklZ+n jAGPiRLRZPR/Pn1TKm6s= X-Received: by 2002:a1f:d205:: with SMTP id j5mr14721861vkg.9.1605109536641; Wed, 11 Nov 2020 07:45:36 -0800 (PST) X-Google-Smtp-Source: ABdhPJwGbwIXXbTLb4YlUU+R1KFuvz/S/2T1V9SYWECfcH9VnKfkxIjuYaez3ZA0P+x4kRzoJtLeRVGbyckGWOdcafE= X-Received: by 2002:a1f:d205:: with SMTP id j5mr14721848vkg.9.1605109536449; Wed, 11 Nov 2020 07:45:36 -0800 (PST) MIME-Version: 1.0 References: <20201111154007.13426-1-yong.liu@intel.com> In-Reply-To: <20201111154007.13426-1-yong.liu@intel.com> From: David Marchand Date: Wed, 11 Nov 2020 16:45:25 +0100 Message-ID: To: David Christensen , Jerin Jacob Kollanukkaran , "Ruifeng Wang (Arm Technology China)" Cc: Maxime Coquelin , "Xia, Chenbo" , dev , Marvin Liu , Thomas Monjalon Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dmarchan@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [dpdk-dev] [PATCH] net/virtio: enable packet data prefetch on x86 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Nov 11, 2020 at 4:40 PM Marvin Liu wrote: > > Data prefetch instruction can preload data into cpu=E2=80=99s hierarchica= l > cache before data access. Virtio datapath utilized this feature for > data access acceleration. As config RTE_PMD_PACKET_PREFETCH was > discarded, now packet data prefetch is enabled based on architecture. IIUC, this config item was set for all architectures under make compilation= . $ git grep RTE_PMD_PACKET_PREFETCH v20.08 config/ v20.08:config/common_base:CONFIG_RTE_PMD_PACKET_PREFETCH=3Dy Now that we switched to meson, it got lost and this patch only restores it for x86. Can other architectures check this? Thanks. --=20 David Marchand