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 X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 44E5CC00449 for ; Wed, 3 Oct 2018 18:55:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E3CCE20644 for ; Wed, 3 Oct 2018 18:55:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E3CCE20644 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727369AbeJDBoy (ORCPT ); Wed, 3 Oct 2018 21:44:54 -0400 Received: from mga14.intel.com ([192.55.52.115]:21280 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727077AbeJDBoy (ORCPT ); Wed, 3 Oct 2018 21:44:54 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga103.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Oct 2018 11:55:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,336,1534834800"; d="scan'208";a="262602694" Received: from romley-ivt3.sc.intel.com ([172.25.110.60]) by orsmga005.jf.intel.com with ESMTP; 03 Oct 2018 11:55:15 -0700 Date: Wed, 3 Oct 2018 11:52:09 -0700 From: Fenghua Yu To: "Moger, Babu" Cc: Fenghua Yu , "tglx@linutronix.de" , "mingo@redhat.com" , "hpa@zytor.com" , "reinette.chatre@intel.com" , "tony.luck@intel.com" , "x86@kernel.org" , "peterz@infradead.org" , "pombredanne@nexb.com" , "gregkh@linuxfoundation.org" , "kstewart@linuxfoundation.org" , "bp@suse.de" , "rafael.j.wysocki@intel.com" , "ak@linux.intel.com" , "kirill.shutemov@linux.intel.com" , "xiaochen.shen@intel.com" , "colin.king@canonical.com" , "Hurwitz, Sherry" , "Lendacky, Thomas" , "pbonzini@redhat.com" , "dwmw@amazon.co.uk" , "luto@kernel.org" , "jroedel@suse.de" , "jannh@google.com" , "dima@arista.com" , "jpoimboe@redhat.com" , "vkuznets@redhat.com" , "linux-kernel@vger.kernel.org" , James Morse Subject: Re: [RFC PATCH 00/10] arch/x86: AMD QoS support Message-ID: <20181003185209.GA98542@romley-ivt3.sc.intel.com> References: <20180924191841.29111-1-babu.moger@amd.com> <20181002170655.GA92941@romley-ivt3.sc.intel.com> <20181002184614.GC92941@romley-ivt3.sc.intel.com> <2549597a-440c-ab77-2c35-01a648703b9f@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2549597a-440c-ab77-2c35-01a648703b9f@amd.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 02, 2018 at 07:16:23PM +0000, Moger, Babu wrote: > > > On 10/02/2018 01:46 PM, Fenghua Yu wrote: > > On Tue, Oct 02, 2018 at 05:44:47PM +0000, Moger, Babu wrote: > >> Hi Fenghua, > >> > >>> -----Original Message----- > >>> From: Fenghua Yu > >>> Sent: Tuesday, October 2, 2018 12:07 PM > >>> On Mon, Sep 24, 2018 at 07:18:54PM +0000, Moger, Babu wrote: > >>>> The public specification is still in works. Will add the link when it is > >>>> available. > >>> > >>> Is this the public AMD QoS spec? > >>> https://support.amd.com/TechDocs/56375_Quality_of_Service_Extensions. > >>> pdf > >>> > >> > >> Yes. That is the one. > >> I was going to send the link after refreshing the patches on 4-19-rc5. You already got it. Please let know if you have any feedback on the patches. > > > > I don't see the name 'RDT' (Resource Director Technology) in the > > spec "AMD64 Technology Platform Quality of Service Extensions". > > Does AMD use the same name 'RDT' as Intel? > > No. AMD uses the word "Platform Quality of Service"(or in short QoS) to > refer this feature. Hi, Thomas, Babu, and James, Can we use "resctrl" to replace "intel_rdt" and "rdt" in kernel? "resctrl" is a neutral name and has been used in user interface already. Hopefully "resctrl" can be acceptable by ARM, AMD, and Intel. We only use "intel_rdt", "amd_qos", or "arm mpam" for vendor specific code. Can we move all of Intel RDT, AMD QoS, and ARM MPAM code into a generic place fs/resctrl where both ARM and X86 code can stay? Thanks. -Fenghua