From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ob0-f172.google.com (mail-ob0-f172.google.com [209.85.214.172]) by dpdk.org (Postfix) with ESMTP id 5E3A858E8 for ; Mon, 9 Feb 2015 13:12:15 +0100 (CET) Received: by mail-ob0-f172.google.com with SMTP id nt9so24673328obb.3 for ; Mon, 09 Feb 2015 04:12:14 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=6xKPPdJH5djLsoqeAq4vI3V6lVFrs3pIU+fbc9owLqc=; b=ecIFRhfSa8fM6U8U92X4Fna8u1lRGYpk14nMBeBBo+4UgrK6X2MZTCUevKb02U4CIY /n4yAlURKd0Otz0xVpUInIz8zdcrOK0KaTxJKPrMYgAg0KdEfVh0vASdPUr1wb6ixukL L/L/4hx1qVaadc71aFGQ+ff7B51ktbfxGVIJaGoDPb4C02h8XEh0EqHHK1geWCqwbr8I ctt0hS5RHpoDa/hJxCqLqzVHf1Pr3agXtEqQDSiiUDnX7pQ2Uj7620AL2uwxw8Tmu7It zZ0kcQ7DAWECcWsd81zA9jkzpiwuOCuX+t5uFrjyMOVbWVuyJBSx1p2gQFzRl2yaeOJc TdVA== X-Gm-Message-State: ALoCoQnEfFjB6TCpy3QpBnUm5tKigL+WFis3fToocPvWWu8JCJXQnearKW/5/B0uqN5Ule9P7ZDl MIME-Version: 1.0 X-Received: by 10.182.115.198 with SMTP id jq6mr11515434obb.68.1423483934683; Mon, 09 Feb 2015 04:12:14 -0800 (PST) Received: by 10.76.95.198 with HTTP; Mon, 9 Feb 2015 04:12:14 -0800 (PST) In-Reply-To: References: <1865184.LnymqLhuvV@xps13> Date: Mon, 9 Feb 2015 13:12:14 +0100 Message-ID: From: David Marchand To: "Zhang, Helin" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.15 Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] i40e: Steps and required configurations of how to achieve the best performance! 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: Mon, 09 Feb 2015 12:12:15 -0000 Hello Helin, On Thu, Oct 16, 2014 at 2:43 AM, Zhang, Helin wrote= : > Hi Thomas > > > > Yes, your proposal it the perfect one, also the most complicated one. I > was thinking of that one as well, but we did not have enough time for tha= t > in our 1.8 timeframe. > > In the long run, I agree with you to implement EAL function to access PCI > config space directly. I will try to put it in our plan as soon as > possible, if no objections. > > > > For now, I think the quickest and easiest way might be to write out a > script of using =E2=80=98setpci=E2=80=99, the Linux command. It is harmle= ss for our code > base, and we can remove it when we have better choice. What do you think? > > > > Thank you very much for the great comments on this topic! I really like i= t! > Did you make any progress on this ? Actually, looking at Stephen patches ( http://dpdk.org/dev/patchwork/patch/3024/), I think we could go with this approach once both uio and vfio are fine. --=20 David Marchand