From patchwork Fri May 29 20:04:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiju Jose X-Patchwork-Id: 11579575 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 367C21392 for ; Fri, 29 May 2020 20:06:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2660520897 for ; Fri, 29 May 2020 20:06:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728142AbgE2UGo (ORCPT ); Fri, 29 May 2020 16:06:44 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:5313 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726926AbgE2UGo (ORCPT ); Fri, 29 May 2020 16:06:44 -0400 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 95E62DF94EB908D63B99; Sat, 30 May 2020 04:06:42 +0800 (CST) Received: from DESKTOP-6T4S3DQ.china.huawei.com (10.47.91.30) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.487.0; Sat, 30 May 2020 04:06:34 +0800 From: Shiju Jose To: , , , , , , , , , , , , CC: Shiju Jose , , Subject: [PATCH RESEND v8 0/2] ACPI / APEI: Add support to notify the vendor specific HW errors Date: Fri, 29 May 2020 21:04:41 +0100 Message-ID: <20200529200443.736-1-shiju.jose@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.47.91.30] X-CFilter-Loop: Reflected Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Presently the vendor drivers are unable to do the recovery for the vendor specific recoverable HW errors because APEI driver does not support reporting the error to the vendor drivers. patch set 1. add new interface to the APEI driver for reporting the vendor specific non-fatal HW errors to the drivers. 2. add driver to handle HiSilicon hip PCIe controller's errors. V8: 1. Removed reporting the standard errors through the interface because of the conflict with the recent patches in the memory error handling path. 2. Fix comments by Dan Carpenter. V7: 1. Add changes in the APEI driver suggested by Borislav Petkov, for queuing up all the non-fatal HW errors to the work queue and notify the registered kernel drivers from the bottom half using blocking notifier, common interface for both standard and vendor-spcific errors. 2. Fix for further feedbacks in v5 HIP PCIe error handler driver by Bjorn Helgaas. V6: 1. Fix few changes in the patch subject line suggested by Bjorn Helgaas. V5: 1. Fix comments from James Morse. 1.1 Changed the notification method to use the atomic_notifier_chain. 1.2 Add the error handled status for the user space. V4: 1. Fix for the following smatch warning in the PCIe error driver, reported by kbuild test robot: warn: should '((((1))) << (9 + i))' be a 64 bit type? if (err->val_bits & BIT(HISI_PCIE_LOCAL_VALID_ERR_MISC + i)) ^^^ This should be BIT_ULL() because it goes up to 9 + 32. V3: 1. Fix the comments from Bjorn Helgaas. V2: 1. Changes in the HiSilicon PCIe controller's error handling driver for the comments from Bjorn Helgaas. 2. Changes in the APEI interface to support reporting the vendor error for module with multiple devices, but use the same section type. In the error handler will use socket id/sub module id etc to distinguish the device. V1: 1. Fix comments from James Morse. 2. add driver to handle HiSilicon hip08 PCIe controller's errors, which is an application of the above interface. Shiju Jose (1): ACPI / APEI: Add support to notify the vendor specific HW errors To: linux-acpi@vger.kernel.org,linux-pci@vger.kernel.org,linux-kernel@vger.kernel.org,rjw@rjwysocki.net,bp@alien8.de,james.morse@arm.com,helgaas@kernel.org,lenb@kernel.org,tony.luck@intel.com,dan.carpenter@oracle.com,gregkh@linuxfoundation.org,zhangliguang@linux.alibaba.com,tglx@linutronix.de Cc: linuxarm@huawei.com,yangyicong@hisilicon.com Yicong Yang (1): PCI: hip: Add handling of HiSilicon HIP PCIe controller errors drivers/acpi/apei/ghes.c | 130 ++++++++- drivers/pci/controller/Kconfig | 8 + drivers/pci/controller/Makefile | 1 + drivers/pci/controller/pcie-hisi-error.c | 321 +++++++++++++++++++++++ include/acpi/ghes.h | 28 ++ 5 files changed, 487 insertions(+), 1 deletion(-) create mode 100644 drivers/pci/controller/pcie-hisi-error.c