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=-11.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 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 9C271C433DF for ; Tue, 13 Oct 2020 02:54:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 428F320708 for ; Tue, 13 Oct 2020 02:54:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="QFCJ11b8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728366AbgJMCyk (ORCPT ); Mon, 12 Oct 2020 22:54:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41532 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728028AbgJMCyj (ORCPT ); Mon, 12 Oct 2020 22:54:39 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 99415C0613D0 for ; Mon, 12 Oct 2020 19:54:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description; bh=z+iglNwhclZAMPArJ2jEHjJ69tR4KECRW+Be9D54RpE=; b=QFCJ11b8qwAq3cp2FeCnGV8SPd SXI4dswkjiXcCljKUfd1+yYqfTes7/FtUf/DB/bn57Ggwuz2O1MJFnaQ76L2+IrrggClqUwVo/MFV XFplOUBKtI3RbT+YPGoN+qRF1MbadzyN8JdW+wMdBK6ymBbl7DH+d6vsXreCqIFQhcn8XExrqKiOz EUdkY+3+66tgSDdednNdpBxakzIHSdx3v1WkywYg4YqrwdIIgKdCH2mdI6QPAkDCJZOuqHZqnw3xA JU7a/SDboy/pDFfLO+DgQdVBzI2CuV9x5azQxwdQ/QuvQa73i18DuX9myjTE2NZNWt1gVz84NyCOD 5/2xSeRw==; Received: from [2601:1c0:6280:3f0::507c] by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kSASR-0006mj-Mh; Tue, 13 Oct 2020 02:54:36 +0000 Subject: Re: [PATCH v2 1/2] Documentation: x86: Rename resctrl_ui.rst and add two errata to the file To: Fenghua Yu , Borislav Petkov , Thomas Gleixner , Ingo Molnar , Stephane Eranian , Tony Luck , Reinette Chatre , Ravi V Shankar Cc: linux-kernel , x86 References: <20201013024656.700492-1-fenghua.yu@intel.com> <20201013024656.700492-2-fenghua.yu@intel.com> From: Randy Dunlap Message-ID: <30bf0281-4680-0a6a-b06b-d86633f534ad@infradead.org> Date: Mon, 12 Oct 2020 19:54:32 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 MIME-Version: 1.0 In-Reply-To: <20201013024656.700492-2-fenghua.yu@intel.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/12/20 7:46 PM, Fenghua Yu wrote: > Intel Memory Bandwidth Monitoring (MBM) counters may report system > memory bandwidth incorrectly on some Intel processors. The errata are > reported in erratum SKX99 [1], erratum BDF102 [2] and RDT reference > manual [3]. > > To work around the errata, MBM total and local readings are corrected > using a correction factor table. > > Since the correction factor table is not publicly documented anywhere, > the table and the errata are documented in Documentation/x86/resctrl.rst > for future reference. The resctrl.rst file is renamed from > Documentation/x86/resctrl_ui.rst because the file won't contain user > interface only anymore. > > 1. Erratum SKX99 in Intel Xeon Processor Scalable Family Specification > Update: > http://web.archive.org/web/20200716124958/https://www.intel.com/content/www/us/en/processors/xeon/scalable/xeon-scalable-spec-update.html > 2. Erratum BDF102 in Intel Xeon E5-2600 v4 Processor Product Family > Specification Update: > http://web.archive.org/web/20191125200531/https://www.intel.com/content/dam/www/public/us/en/documents/specification-updates/xeon-e5-v4-spec-update.pdf > 3. The errata in Intel Resource Director Technology (Intel RDT) on 2nd > Generation Intel Xeon Scalable Processors Reference Manual: > https://software.intel.com/content/www/us/en/develop/articles/intel-resource-director-technology-rdt-reference-manual.html > > Suggested-by: Borislav Petkov > Signed-off-by: Fenghua Yu > --- > Change Log: > v2: > - Document the correction factor table and errata in resctrl.rst (Boris). > - Change the documentation URLs to stable archive.org (Tony). > > Documentation/conf.py | 2 +- > Documentation/x86/index.rst | 2 +- > .../x86/{resctrl_ui.rst => resctrl.rst} | 82 +++++++++++++++++++ > 3 files changed, 84 insertions(+), 2 deletions(-) > rename Documentation/x86/{resctrl_ui.rst => resctrl.rst} (92%) > > diff --git a/Documentation/conf.py b/Documentation/conf.py > index c503188880d9..b5b2be8eec22 100644 > --- a/Documentation/conf.py > +++ b/Documentation/conf.py > @@ -36,7 +36,7 @@ needs_sphinx = '1.3' > # Add any Sphinx extension module names here, as strings. They can be > # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom > # ones. > -extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', 'cdomain', > +extensions = ['kerneldoc', 'rstFlatTable', 'kernel_include', > 'kfigure', 'sphinx.ext.ifconfig', 'automarkup', > 'maintainers_include', 'sphinx.ext.autosectionlabel' ] Hi, I don't see this change described in the patch description. Should it be here? thanks. -- ~Randy