Received: by 2002:a05:6a10:6d10:0:0:0:0 with SMTP id gq16csp1447964pxb; Thu, 14 Apr 2022 06:31:06 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzIJ0XiewYGCUCO6bkDtsHfx3l+CrUuM9/o7RT7csHT8eMOWhOeB6bBPlXua6oRFCyrFp6u X-Received: by 2002:a17:902:bb8d:b0:156:51a1:3f5a with SMTP id m13-20020a170902bb8d00b0015651a13f5amr47214018pls.65.1649943065954; Thu, 14 Apr 2022 06:31:05 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1649943065; cv=none; d=google.com; s=arc-20160816; b=jMFSX544fFjgjzHcbD5+nydr0tWEXFeqGqJ2WxIrFrUpOTWAdKA+HWP2yGiT1bCMjt vnisBIwQMaBTQoB6aAOljk0G1exBvfrJxYAH7/qTWhTaH6RdlV2c9sz1s/bJo7RfrsRj 9mY+R45PnPdN2Sj5NhB1qFCWm/VxiyiQicA7HJTCUk2QsNxnVKc4v83cAMS5wK9S5//v nAGH1oQaRWTz1fV6pRo/SmAh9kzqzc8mNTpISwlBd01BYkRk9EXo7R00yLna5h2rROvG p/UKYNNj8McdNj7H0nammlFCAEz85+HwMEXmV87bxAQvvjxt+2KbVbUENUBi/GQnfX5M T7og== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:user-agent:references:message-id :in-reply-to:subject:cc:to:from:date; bh=GN2/pbZNChaOkrm2SpnwA9ct0vqPM3cbBnAgRoUe1pI=; b=tl6eXu6ge5jq+yZDxIJjHp40xwlROTcbLGqr5tJWcGe7Nzy0W2MYt+OA8K0eKFVlvo g1obiohYDExgWR2j0VVfClCx2yDK/X97MqJQeWacGa33Dvv5ubDYKsitVsyZfjZMtGRf 8QlDg0o0STn7dsOFkxytWjvO4yBA+bU/YvmvCfZO9DkzH2/yHnxNMXfTgP17uGQdkJZj k0RZa/91ALZFrf6Sf0TyvQuwqBe84HVJ3lVm1j6N83w9/1omX4jGfBbhuPeJQWX8xpWD enUf4u50kyNrRC9lzdrW0hffg1bo0Nxwhuq81au2jRwQfW47k+7T8LK+LgsOXmuWPc1X gMSw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id b12-20020a170902d50c00b00153b2d16593si10478074plg.411.2022.04.14.06.30.50; Thu, 14 Apr 2022 06:31:05 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238410AbiDMWzz (ORCPT + 99 others); Wed, 13 Apr 2022 18:55:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238384AbiDMWzu (ORCPT ); Wed, 13 Apr 2022 18:55:50 -0400 Received: from angie.orcam.me.uk (angie.orcam.me.uk [78.133.224.34]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A5A7058816; Wed, 13 Apr 2022 15:53:28 -0700 (PDT) Received: by angie.orcam.me.uk (Postfix, from userid 500) id F02BF92009D; Thu, 14 Apr 2022 00:53:27 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by angie.orcam.me.uk (Postfix) with ESMTP id ED04A92009C; Wed, 13 Apr 2022 23:53:27 +0100 (BST) Date: Wed, 13 Apr 2022 23:53:27 +0100 (BST) From: "Maciej W. Rozycki" To: Bjorn Helgaas cc: Stefan Roese , Jim Wilson , David Abdurachmanov , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PING][PATCH v4] pci: Work around ASMedia ASM2824 PCIe link training failures In-Reply-To: Message-ID: References: User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 31 Mar 2022, Maciej W. Rozycki wrote: > Attempt to handle cases with a downstream port of the ASMedia ASM2824 > PCIe switch where link training never completes and the link continues > switching between speeds indefinitely with the data link layer never > reaching the active state. Ping for: Maciej