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=-10.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,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 66ADBC07E95 for ; Tue, 20 Jul 2021 21:26:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 391AE61003 for ; Tue, 20 Jul 2021 21:26:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230368AbhGTUpe (ORCPT ); Tue, 20 Jul 2021 16:45:34 -0400 Received: from mga09.intel.com ([134.134.136.24]:42766 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233545AbhGTUpF (ORCPT ); Tue, 20 Jul 2021 16:45:05 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10051"; a="211329654" X-IronPort-AV: E=Sophos;i="5.84,256,1620716400"; d="scan'208";a="211329654" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2021 14:25:43 -0700 X-IronPort-AV: E=Sophos;i="5.84,256,1620716400"; d="scan'208";a="661661150" Received: from patelni-mobl1.amr.corp.intel.com (HELO [10.212.64.39]) ([10.212.64.39]) by fmsmga005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jul 2021 14:25:42 -0700 Subject: Re: [PATCH v2 0/2] Issue secondary bus reset and domain window reset To: Jon Derrick , linux-pci@vger.kernel.org References: <20210720205009.111806-1-nirmal.patel@linux.intel.com> From: "Patel, Nirmal" Message-ID: <4fde3255-ae6c-aac9-d76b-dcdff934d5c9@linux.intel.com> Date: Tue, 20 Jul 2021 14:25:37 -0700 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <20210720205009.111806-1-nirmal.patel@linux.intel.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On 7/20/2021 1:50 PM, Nirmal Patel wrote: > During VT-d pass-through, the VMD driver occasionally fails to > enumerate underlying NVMe devices when repetitive reboots are > performed in the guest OS. The issue seems to be resolved by > performing secondary bus resets and reinitializing the root > port's bridge windows. > > Nirmal Patel (2): > PCI: vmd: Trigger secondary bus reset > PCI: vmd: Issue vmd domain window reset > > drivers/pci/controller/vmd.c | 81 ++++++++++++++++++++++++++++++++++++ > 1 file changed, 81 insertions(+) > There is no v1 of this patch. I made a newbie mistake and didn't remove v2 after internal review. Please let me know if you have alternate suggestion to fix this issue.