From patchwork Tue May 14 22:18:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuppuswamy Sathyanarayanan X-Patchwork-Id: 10944023 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7E925924 for ; Tue, 14 May 2019 22:21:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6D6FE2894C for ; Tue, 14 May 2019 22:21:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6BE8028950; Tue, 14 May 2019 22:21:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0FF1A28989 for ; Tue, 14 May 2019 22:21:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726338AbfENWVD (ORCPT ); Tue, 14 May 2019 18:21:03 -0400 Received: from mga03.intel.com ([134.134.136.65]:20401 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726174AbfENWVD (ORCPT ); Tue, 14 May 2019 18:21:03 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 May 2019 15:21:02 -0700 X-ExtLoop1: 1 Received: from skuppusw-desk.jf.intel.com ([10.54.74.33]) by fmsmga007.fm.intel.com with ESMTP; 14 May 2019 15:21:02 -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 v3 0/5] Add Error Disconnect Recover (EDR) support Date: Tue, 14 May 2019 15:18:12 -0700 Message-Id: X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Kuppuswamy Sathyanarayanan This patchset adds support for following features: 1. Error Disconnect Recover (EDR) support. 2. _OSC based negotiation support for DPC. You can find EDR spec in the following link. https://members.pcisig.com/wg/PCI-SIG/document/12614 Changes since v1: * Rebased on top of v5.1-rc1 Changes since v2: * Split EDR support patch into multiple patches. * Addressed Bjorn comments. Kuppuswamy Sathyanarayanan (5): PCI/ACPI: Add _OSC based negotiation support for DPC PCI/DPC: Allow dpc_probe() even if DPC is handled in firmware PCI/DPC: Add dpc_process_error() wrapper function PCI/DPC: Add Error Disconnect Recover (EDR) support PCI/ACPI: Expose EDR support via _OSC to BIOS drivers/acpi/pci_root.c | 9 ++ drivers/pci/pcie/Kconfig | 10 ++ drivers/pci/pcie/dpc.c | 265 ++++++++++++++++++++++++++++++-- drivers/pci/pcie/portdrv_core.c | 8 +- drivers/pci/probe.c | 1 + include/linux/acpi.h | 6 +- include/linux/pci.h | 1 + 7 files changed, 282 insertions(+), 18 deletions(-)