From patchwork Fri May 11 10:43:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Oza Pawandeep X-Patchwork-Id: 10393913 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id F2696601A0 for ; Fri, 11 May 2018 10:43:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 256D328BB6 for ; Fri, 11 May 2018 10:43:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1A10128E3E; Fri, 11 May 2018 10:43:39 +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 A04DB28BB6 for ; Fri, 11 May 2018 10:43:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752938AbeEKKng (ORCPT ); Fri, 11 May 2018 06:43:36 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:40783 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752906AbeEKKne (ORCPT ); Fri, 11 May 2018 06:43:34 -0400 X-IronPort-AV: E=Sophos;i="5.49,388,1520924400"; d="scan'208";a="17306052" Received: from ironmsg01-sd.qualcomm.com ([10.53.140.141]) by alexa-out.qualcomm.com with ESMTP; 11 May 2018 03:43:33 -0700 Received: from westreach.qualcomm.com ([10.228.196.125]) by ironmsg01-sd.qualcomm.com with ESMTP; 11 May 2018 03:43:32 -0700 Received: by westreach.qualcomm.com (Postfix, from userid 467151) id C856A1F2F; Fri, 11 May 2018 06:43:30 -0400 (EDT) From: Oza Pawandeep To: Bjorn Helgaas , Philippe Ombredanne , Thomas Gleixner , Greg Kroah-Hartman , Kate Stewart , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Dongdong Liu , Keith Busch , Wei Zhang , Sinan Kaya , Timur Tabi Cc: Oza Pawandeep Subject: [PATCH v16 9/9] PCI/DPC: Disable ERR_NONFATAL and enable ERR_FATAL for DPC Date: Fri, 11 May 2018 06:43:28 -0400 Message-Id: <1526035408-31328-10-git-send-email-poza@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1526035408-31328-1-git-send-email-poza@codeaurora.org> References: <1526035408-31328-1-git-send-email-poza@codeaurora.org> 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 This patch disables ERR_NONFATAL trigger for DPC, so now DPC handles only ERR_FATAL. Signed-off-by: Oza Pawandeep diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c index 5680c13..358b4324 100644 --- a/drivers/pci/pcie/dpc.c +++ b/drivers/pci/pcie/dpc.c @@ -273,7 +273,7 @@ static int dpc_probe(struct pcie_device *dev) } } - ctl = (ctl & 0xfff4) | PCI_EXP_DPC_CTL_EN_NONFATAL | PCI_EXP_DPC_CTL_INT_EN; + ctl = (ctl & 0xfff4) | PCI_EXP_DPC_CTL_EN_FATAL | PCI_EXP_DPC_CTL_INT_EN; pci_write_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL, ctl); dev_info(device, "DPC error containment capabilities: Int Msg #%d, RPExt%c PoisonedTLP%c SwTrigger%c RP PIO Log %d, DL_ActiveErr%c\n", @@ -291,7 +291,7 @@ static void dpc_remove(struct pcie_device *dev) u16 ctl; pci_read_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL, &ctl); - ctl &= ~(PCI_EXP_DPC_CTL_EN_NONFATAL | PCI_EXP_DPC_CTL_INT_EN); + ctl &= ~(PCI_EXP_DPC_CTL_EN_FATAL | PCI_EXP_DPC_CTL_INT_EN); pci_write_config_word(pdev, dpc->cap_pos + PCI_EXP_DPC_CTL, ctl); } diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 103ba79..5182e0d 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -981,6 +981,7 @@ #define PCI_EXP_DPC_CAP_DL_ACTIVE 0x1000 /* ERR_COR signal on DL_Active supported */ #define PCI_EXP_DPC_CTL 6 /* DPC control */ +#define PCI_EXP_DPC_CTL_EN_FATAL 0x0001 /* Enable trigger on ERR_FATAL message */ #define PCI_EXP_DPC_CTL_EN_NONFATAL 0x0002 /* Enable trigger on ERR_NONFATAL message */ #define PCI_EXP_DPC_CTL_INT_EN 0x0008 /* DPC Interrupt Enable */