From patchwork Mon Jun 15 09:53:10 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shiju Jose X-Patchwork-Id: 11604483 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 8A010913 for ; Mon, 15 Jun 2020 09:55:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7AB03206D7 for ; Mon, 15 Jun 2020 09:55:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728781AbgFOJza (ORCPT ); Mon, 15 Jun 2020 05:55:30 -0400 Received: from lhrrgout.huawei.com ([185.176.76.210]:2306 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726111AbgFOJza (ORCPT ); Mon, 15 Jun 2020 05:55:30 -0400 Received: from lhreml715-chm.china.huawei.com (unknown [172.18.7.107]) by Forcepoint Email with ESMTP id 8056736B118F31A0D9D4; Mon, 15 Jun 2020 10:55:28 +0100 (IST) Received: from DESKTOP-6T4S3DQ.china.huawei.com (10.47.26.179) by lhreml715-chm.china.huawei.com (10.201.108.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1913.5; Mon, 15 Jun 2020 10:55:27 +0100 From: Shiju Jose To: , , , , , , , , , , , , CC: , , Subject: [PATCH v9 0/2] ACPI / APEI: Add support to notify the vendor specific HW errors Date: Mon, 15 Jun 2020 10:53:10 +0100 Message-ID: <20200615095312.398-1-shiju.jose@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 MIME-Version: 1.0 X-Originating-IP: [10.47.26.179] X-ClientProxiedBy: lhreml732-chm.china.huawei.com (10.201.108.83) To lhreml715-chm.china.huawei.com (10.201.108.66) 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. V9: 1. Fixed 2 improvements suggested by the kbuild test robot. 1.1 Change ghes_gdata_pool_init() as static function. 1.2. Removed using buffer to store the error data for logging in the hisi_pcie_handle_error() 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 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 | 305 +++++++++++++++++++++++ include/acpi/ghes.h | 28 +++ 5 files changed, 471 insertions(+), 1 deletion(-) create mode 100644 drivers/pci/controller/pcie-hisi-error.c