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=-9.8 required=3.0 tests=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 BC79AC76186 for ; Tue, 23 Jul 2019 20:24:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9AAD02253D for ; Tue, 23 Jul 2019 20:24:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389159AbfGWUYz (ORCPT ); Tue, 23 Jul 2019 16:24:55 -0400 Received: from mga12.intel.com ([192.55.52.136]:31967 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388011AbfGWUYd (ORCPT ); Tue, 23 Jul 2019 16:24:33 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 23 Jul 2019 13:24:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,300,1559545200"; d="scan'208";a="369029029" Received: from skuppusw-desk.jf.intel.com ([10.54.74.33]) by fmsmga006.fm.intel.com with ESMTP; 23 Jul 2019 13:24:31 -0700 From: sathyanarayanan.kuppuswamy@linux.intel.com To: bhelgaas@google.com Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, ashok.raj@intel.com, keith.busch@intel.com, sathyanarayanan.kuppuswamy@linux.intel.com Subject: [PATCH v5 7/9] PCI/AER: Allow clearing Error Status Register in FF mode Date: Tue, 23 Jul 2019 13:21:49 -0700 Message-Id: <3fe03d0be84187d44808f4e3c82a5f0a5f6c434e.1563912591.git.sathyanarayanan.kuppuswamy@linux.intel.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kuppuswamy Sathyanarayanan As per PCI firmware specification r3.2 Downstream Port Containment Related Enhancements ECN, sec 4.5.1, table 4-6, Error Disconnect Recover (EDR) support allows OS to handle error recovery and clearing Error Registers even in FF mode. So remove FF mode checks in pci_cleanup_aer_uncorrect_error_status(), pci_aer_clear_fatal_status() and pci_cleanup_aer_error_status_regs() functions. Signed-off-by: Kuppuswamy Sathyanarayanan --- drivers/pci/pcie/aer.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c index b45bc47d04fe..ae5eed084ae5 100644 --- a/drivers/pci/pcie/aer.c +++ b/drivers/pci/pcie/aer.c @@ -383,9 +383,6 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev) if (!pos) return -EIO; - if (pcie_aer_get_firmware_first(dev)) - return -EIO; - /* Clear status bits for ERR_NONFATAL errors only */ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &sev); @@ -406,9 +403,6 @@ void pci_aer_clear_fatal_status(struct pci_dev *dev) if (!pos) return; - if (pcie_aer_get_firmware_first(dev)) - return; - /* Clear status bits for ERR_FATAL errors only */ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status); pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &sev); @@ -430,9 +424,6 @@ int pci_cleanup_aer_error_status_regs(struct pci_dev *dev) if (!pos) return -EIO; - if (pcie_aer_get_firmware_first(dev)) - return -EIO; - port_type = pci_pcie_type(dev); if (port_type == PCI_EXP_TYPE_ROOT_PORT) { pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &status); -- 2.21.0