MdePkg/Include/IndustryStandard/PciExpress30.h

   1 /** @file
   2   Support for the PCI Express 3.0 standard.
   3
   4   This header file may not define all structures.  Please extend as required.
   5
   6   Copyright (c) 2014 - 2016, Intel Corporation. All rights reserved.<BR>
   7   This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15 **/
  16
  17 #ifndef _PCIEXPRESS30_H_
  18 #define _PCIEXPRESS30_H_
  19
  20 #include <IndustryStandard/PciExpress21.h>
  21
  22 #pragma pack(1)
  23
  24 #define PCI_EXPRESS_EXTENDED_CAPABILITY_SECONDARY_PCIE_ID    0x0019
  25 #define PCI_EXPRESS_EXTENDED_CAPABILITY_SECONDARY_PCIE_VER1  0x1
  26
  27 typedef union {
  28   struct {
  29     UINT32 PerformEqualization : 1;
  30     UINT32 LinkEqualizationRequestInterruptEnable : 1;
  31     UINT32 Reserved : 30;
  32   } Bits;
  33   UINT32   Uint32;
  34 } PCI_EXPRESS_REG_LINK_CONTROL3;
  35
  36 typedef union {
  37   struct {
  38     UINT16 DownstreamPortTransmitterPreset : 4;
  39     UINT16 DownstreamPortReceiverPresetHint : 3;
  40     UINT16 Reserved : 1;
  41     UINT16 UpstreamPortTransmitterPreset : 4;
  42     UINT16 UpstreamPortReceiverPresetHint : 3;
  43     UINT16 Reserved2 : 1;
  44   } Bits;
  45   UINT16   Uint16;
  46 } PCI_EXPRESS_REG_LANE_EQUALIZATION_CONTROL;
  47
  48 typedef struct {
  49   PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER                Header;
  50   PCI_EXPRESS_REG_LINK_CONTROL3                           LinkControl3;
  51   UINT32                                                  LaneErrorStatus;
  52   PCI_EXPRESS_REG_LANE_EQUALIZATION_CONTROL               EqualizationControl[2];
  53 } PCI_EXPRESS_EXTENDED_CAPABILITIES_SECONDARY_PCIE;
  54
  55 #pragma pack()
  56
  57 #endif