From patchwork Tue May 5 01:32:04 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "David E. Box" X-Patchwork-Id: 1283163 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; 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=linux.intel.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49GMfl0q7Zz9sT0 for ; Tue, 5 May 2020 11:32:47 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727028AbgEEBcl (ORCPT ); Mon, 4 May 2020 21:32:41 -0400 Received: from mga12.intel.com ([192.55.52.136]:52077 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726531AbgEEBck (ORCPT ); Mon, 4 May 2020 21:32:40 -0400 IronPort-SDR: xIEtsE+m9CAcakmqGcP+5s+rpQ041eFR2Qvpgl46aHGFgNPwd80/AxBczQQLzjwkbr0oeQDX99 v+EaJ8tooq0g== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 May 2020 18:32:40 -0700 IronPort-SDR: hHcKuDlrpepWuD8j8R8/g9YI9pBzTLbTh7UihT5c1jcZmfmhwmuuWM9V0uAGae6v67vQQ6dFvy aJ0HY1fVhfPQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,354,1583222400"; d="scan'208";a="338501940" Received: from linux.intel.com ([10.54.29.200]) by orsmga001.jf.intel.com with ESMTP; 04 May 2020 18:32:40 -0700 Received: from debox1-hc.jf.intel.com (debox1-hc.jf.intel.com [10.54.75.159]) by linux.intel.com (Postfix) with ESMTP id 51639580613; Mon, 4 May 2020 18:32:40 -0700 (PDT) From: "David E. Box" To: bhelgaas@google.com, andy@infradead.org, alexander.h.duyck@intel.com Cc: "David E. Box" , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org Subject: [PATCH 1/3] pci: Add Designated Vendor Specific Capability Date: Mon, 4 May 2020 18:32:04 -0700 Message-Id: <20200505013206.11223-2-david.e.box@linux.intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200505013206.11223-1-david.e.box@linux.intel.com> References: <20200505013206.11223-1-david.e.box@linux.intel.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add pcie dvsec extended capability id along with helper macros to retrieve information from the headers. https://members.pcisig.com/wg/PCI-SIG/document/12335 Signed-off-by: David E. Box Acked-by: Bjorn Helgaas --- include/uapi/linux/pci_regs.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index f9701410d3b5..c96f08d1e711 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -720,6 +720,7 @@ #define PCI_EXT_CAP_ID_DPC 0x1D /* Downstream Port Containment */ #define PCI_EXT_CAP_ID_L1SS 0x1E /* L1 PM Substates */ #define PCI_EXT_CAP_ID_PTM 0x1F /* Precision Time Measurement */ +#define PCI_EXT_CAP_ID_DVSEC 0x23 /* Desinated Vendor-Specific */ #define PCI_EXT_CAP_ID_DLF 0x25 /* Data Link Feature */ #define PCI_EXT_CAP_ID_PL_16GT 0x26 /* Physical Layer 16.0 GT/s */ #define PCI_EXT_CAP_ID_MAX PCI_EXT_CAP_ID_PL_16GT @@ -1062,6 +1063,10 @@ #define PCI_L1SS_CTL1_LTR_L12_TH_SCALE 0xe0000000 /* LTR_L1.2_THRESHOLD_Scale */ #define PCI_L1SS_CTL2 0x0c /* Control 2 Register */ +/* Designated Vendor-Specific (DVSEC, PCI_EXT_CAP_ID_DVSEC) */ +#define PCI_DVSEC_HEADER1 0x4 /* Vendor-Specific Header1 */ +#define PCI_DVSEC_HEADER2 0x8 /* Vendor-Specific Header2 */ + /* Data Link Feature */ #define PCI_DLF_CAP 0x04 /* Capabilities Register */ #define PCI_DLF_EXCHANGE_ENABLE 0x80000000 /* Data Link Feature Exchange Enable */