From patchwork Mon Apr 2 16:21:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Keith Busch X-Patchwork-Id: 894304 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=intel.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40FHW371KKz9s32 for ; Tue, 3 Apr 2018 02:19:59 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752737AbeDBQT5 (ORCPT ); Mon, 2 Apr 2018 12:19:57 -0400 Received: from mga11.intel.com ([192.55.52.93]:40105 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752609AbeDBQT4 (ORCPT ); Mon, 2 Apr 2018 12:19:56 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 02 Apr 2018 09:19:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.48,396,1517904000"; d="scan'208";a="40113137" Received: from unknown (HELO localhost.lm.intel.com) ([10.232.112.44]) by orsmga003.jf.intel.com with ESMTP; 02 Apr 2018 09:19:55 -0700 From: Keith Busch To: Linux PCI , Bjorn Helgaas Cc: Oza Pawandeep , Sinan Kaya , Keith Busch Subject: [PATCHv2 1/7] PCI/DPC: Enable ERR_COR Date: Mon, 2 Apr 2018 10:21:57 -0600 Message-Id: <20180402162203.3370-2-keith.busch@intel.com> X-Mailer: git-send-email 2.13.6 In-Reply-To: <20180402162203.3370-1-keith.busch@intel.com> References: <20180402162203.3370-1-keith.busch@intel.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org A DPC port may be configured to send ERR_COR message when the triggered. This patch enables this feature so additional notification of the event is possible. Signed-off-by: Keith Busch --- drivers/pci/pcie/pcie-dpc.c | 5 ++++- include/uapi/linux/pci_regs.h | 1 + 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pcie/pcie-dpc.c b/drivers/pci/pcie/pcie-dpc.c index 38e40c6c576f..a9be6938417f 100644 --- a/drivers/pci/pcie/pcie-dpc.c +++ b/drivers/pci/pcie/pcie-dpc.c @@ -269,7 +269,10 @@ 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_NONFATAL | + PCI_EXP_DPC_CTL_INT_EN | + PCI_EXP_DPC_CTL_ERR_COR; 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", diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 0c79eac5e9b8..9cfcecdc3ec7 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -980,6 +980,7 @@ #define PCI_EXP_DPC_CTL 6 /* DPC control */ #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 */ +#define PCI_EXP_DPC_CTL_ERR_COR 0x0010 /* DPC ERR_COR Enable */ #define PCI_EXP_DPC_STATUS 8 /* DPC Status */ #define PCI_EXP_DPC_STATUS_TRIGGER 0x0001 /* Trigger Status */