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=-10.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable 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 5BAF0C48BE5 for ; Tue, 22 Jun 2021 06:20:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3E8A761350 for ; Tue, 22 Jun 2021 06:20:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229702AbhFVGWW (ORCPT ); Tue, 22 Jun 2021 02:22:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45726 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229490AbhFVGWV (ORCPT ); Tue, 22 Jun 2021 02:22:21 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2D454C061574; Mon, 21 Jun 2021 23:20:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=i7qw1P7cffyCFgbX14CbqUdWAzPNTF+txKSmBp9Yh1M=; b=KZ/I+55ap+o6tXTh99YDxMSxlv TGMr/88yh7Uv+6cIA/axZwCkDUwJ8Y9GW+OWu846zIqw64TILFXumV7A6hlHzBVSZU7OUapoLJlNC OFTgVSGa9g3vliCYAQl4vvHhA1+oRF7eWc1/ebDSi+6NJuTtZU0ByNYACJ6CEwIpyyogId/8P3oGi 3Flt0ySU1jtkHlsrCBOPjnVeTTVrEY+tRcI3wOdtTdejMjrzmovzSfh8ZTp5ameDyFDZdR1YUYfci tg4d12c3XkAkojicZ/q00h/JNPFahAteftqoXu9KL6QykbVotngMrzfR/VofdddcjQAiEVTzd3gTz P8mvrHDw==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvZkk-00DxQv-Sw; Tue, 22 Jun 2021 06:19:28 +0000 Date: Tue, 22 Jun 2021 07:19:18 +0100 From: Christoph Hellwig To: Dongdong Liu Cc: helgaas@kernel.org, hch@infradead.org, kw@linux.com, linux-pci@vger.kernel.org, rajur@chelsio.com, hverkuil-cisco@xs4all.nl, linux-media@vger.kernel.org, netdev@vger.kernel.org Subject: Re: [PATCH V5 6/6] PCI: Enable 10-Bit tag support for PCIe RP devices Message-ID: References: <1624271242-111890-1-git-send-email-liudongdong3@huawei.com> <1624271242-111890-7-git-send-email-liudongdong3@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1624271242-111890-7-git-send-email-liudongdong3@huawei.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, Jun 21, 2021 at 06:27:22PM +0800, Dongdong Liu wrote: > PCIe spec 5.0r1.0 section 2.2.6.2 implementation note, In configurations > where a Requester with 10-Bit Tag Requester capability needs to target > multiple Completers, one needs to ensure that the Requester sends 10-Bit > Tag Requests only to Completers that have 10-Bit Tag Completer capability. > So we enable 10-Bit Tag Requester for root port only when the devices > under the root port support 10-Bit Tag Completer. > > Signed-off-by: Dongdong Liu Looks good, Reviewed-by: Christoph Hellwig