From patchwork Mon Aug 3 12:20:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 266858 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=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT 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 76CE1C433DF for ; Mon, 3 Aug 2020 12:38:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 45FE52054F for ; Mon, 3 Aug 2020 12:38:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596458294; bh=/MNFJzkOY3OPjHdn2z1uM0k6Ta88CX9tJI06WJIu3pw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=y7zZt3HgoAxLzqG2sMRBQv0qMDVwYHrTRHW9OIrF1P1P43P5O61npvg/H/UVeGIqA nXRfbv9Q4hrtFaIJ/CHiGJf3QbOqo1mQAdMIkvqeG8356+zOVJFf9UZs9rE32MShp/ oUEgcxU6q4n5qZU3B0CWqBT+5v409szsQ/I5l3VU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728383AbgHCMiF (ORCPT ); Mon, 3 Aug 2020 08:38:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:34908 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729582AbgHCMel (ORCPT ); Mon, 3 Aug 2020 08:34:41 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CB71D204EC; Mon, 3 Aug 2020 12:34:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1596458080; bh=/MNFJzkOY3OPjHdn2z1uM0k6Ta88CX9tJI06WJIu3pw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=wZvRo6jYFURGGIXVy4z78oNFMpRDegjSozjL8W5yRl2EwVCX+qJjImkaG+fLrSXP9 uZGRe1a5APyxLAjYu/QvuaWGyJA2NTerwt9j0xoRM6J9oM0JW6/68vy1kztaofrIuU ELjdSfy/1U/o4nC7A7SPVeWhenE0xZ8FEX5nZie0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jake Lawrence , Jakub Kicinski , Saeed Mahameed , "David S. Miller" , Sasha Levin Subject: [PATCH 4.14 32/51] mlx4: disable device on shutdown Date: Mon, 3 Aug 2020 14:20:17 +0200 Message-Id: <20200803121851.092119670@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200803121849.488233135@linuxfoundation.org> References: <20200803121849.488233135@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jakub Kicinski [ Upstream commit 3cab8c65525920f00d8f4997b3e9bb73aecb3a8e ] It appears that not disabling a PCI device on .shutdown may lead to a Hardware Error with particular (perhaps buggy) BIOS versions: mlx4_en: eth0: Close port called mlx4_en 0000:04:00.0: removed PHC reboot: Restarting system {1}[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1 {1}[Hardware Error]: event severity: fatal {1}[Hardware Error]: Error 0, type: fatal {1}[Hardware Error]: section_type: PCIe error {1}[Hardware Error]: port_type: 4, root port {1}[Hardware Error]: version: 1.16 {1}[Hardware Error]: command: 0x4010, status: 0x0143 {1}[Hardware Error]: device_id: 0000:00:02.2 {1}[Hardware Error]: slot: 0 {1}[Hardware Error]: secondary_bus: 0x04 {1}[Hardware Error]: vendor_id: 0x8086, device_id: 0x2f06 {1}[Hardware Error]: class_code: 000604 {1}[Hardware Error]: bridge: secondary_status: 0x2000, control: 0x0003 {1}[Hardware Error]: aer_uncor_status: 0x00100000, aer_uncor_mask: 0x00000000 {1}[Hardware Error]: aer_uncor_severity: 0x00062030 {1}[Hardware Error]: TLP Header: 40000018 040000ff 791f4080 00000000 [hw error repeats] Kernel panic - not syncing: Fatal hardware error! CPU: 0 PID: 2189 Comm: reboot Kdump: loaded Not tainted 5.6.x-blabla #1 Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 05/05/2017 Fix the mlx4 driver. This is a very similar problem to what had been fixed in: commit 0d98ba8d70b0 ("scsi: hpsa: disable device during shutdown") to address https://bugzilla.kernel.org/show_bug.cgi?id=199779. Fixes: 2ba5fbd62b25 ("net/mlx4_core: Handle AER flow properly") Reported-by: Jake Lawrence Signed-off-by: Jakub Kicinski Reviewed-by: Saeed Mahameed Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx4/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index cf9011bb6e0f1..c6660b61e8361 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -4190,12 +4190,14 @@ end: static void mlx4_shutdown(struct pci_dev *pdev) { struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev); + struct mlx4_dev *dev = persist->dev; mlx4_info(persist->dev, "mlx4_shutdown was called\n"); mutex_lock(&persist->interface_state_mutex); if (persist->interface_state & MLX4_INTERFACE_STATE_UP) mlx4_unload_one(pdev); mutex_unlock(&persist->interface_state_mutex); + mlx4_pci_disable_device(dev); } static const struct pci_error_handlers mlx4_err_handler = {