From patchwork Thu Apr 6 00:20:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Maciej W. Rozycki" X-Patchwork-Id: 1765800 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4PsMc944K4z1yZT for ; Thu, 6 Apr 2023 10:21:13 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234335AbjDFAVJ (ORCPT ); Wed, 5 Apr 2023 20:21:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233950AbjDFAVI (ORCPT ); Wed, 5 Apr 2023 20:21:08 -0400 Received: from angie.orcam.me.uk (angie.orcam.me.uk [IPv6:2001:4190:8020::34]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0135E6598; Wed, 5 Apr 2023 17:21:02 -0700 (PDT) Received: by angie.orcam.me.uk (Postfix, from userid 500) id 8960792009C; Thu, 6 Apr 2023 02:20:59 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by angie.orcam.me.uk (Postfix) with ESMTP id 8201792009B; Thu, 6 Apr 2023 01:20:59 +0100 (BST) Date: Thu, 6 Apr 2023 01:20:59 +0100 (BST) From: "Maciej W. Rozycki" To: Bjorn Helgaas , Mahesh J Salgaonkar , Oliver O'Halloran , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Saeed Mahameed , Leon Romanovsky , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni cc: Alex Williamson , Lukas Wunner , Mika Westerberg , Stefan Roese , Jim Wilson , David Abdurachmanov , =?utf-8?q?Pali_Roh?= =?utf-8?q?=C3=A1r?= , linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v8 0/7] pci: Work around ASMedia ASM2824 PCIe link training failures Message-ID: User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 X-Spam-Status: No, score=0.0 required=5.0 tests=HDRS_LCASE,SPF_HELO_NONE, SPF_NONE autolearn=unavailable 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-pci@vger.kernel.org Hi, This is v8 of the change to work around a PCIe link training phenomenon where a pair of devices both capable of operating at a link speed above 2.5GT/s seems unable to negotiate the link speed and continues training indefinitely with the Link Training bit switching on and off repeatedly and the data link layer never reaching the active state. This version adds a Reviewed-by: tag by Lukas Wunner accidentally missed from 6/7 in v7 and reorders said change to the front of the series. Last two iterations: . Maciej