audk/MdePkg/Include/IndustryStandard/PciExpress30.h

/** @file
  Support for the PCI Express 3.0 standard.

  This header file may not define all structures.  Please extend as required.

  Copyright (c) 2014 - 2018, Intel Corporation. All rights reserved.<BR>
  SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _PCIEXPRESS30_H_
#define _PCIEXPRESS30_H_

#include <IndustryStandard/PciExpress21.h>

#pragma pack(1)

#define PCI_EXPRESS_EXTENDED_CAPABILITY_SECONDARY_PCIE_ID    0x0019
#define PCI_EXPRESS_EXTENDED_CAPABILITY_SECONDARY_PCIE_VER1  0x1

typedef union {
  struct {
    UINT32 PerformEqualization : 1;
    UINT32 LinkEqualizationRequestInterruptEnable : 1;
    UINT32 Reserved : 30;
  } Bits;
  UINT32   Uint32;
} PCI_EXPRESS_REG_LINK_CONTROL3;

typedef union {
  struct {
    UINT16 DownstreamPortTransmitterPreset : 4;
    UINT16 DownstreamPortReceiverPresetHint : 3;
    UINT16 Reserved : 1;
    UINT16 UpstreamPortTransmitterPreset : 4;
    UINT16 UpstreamPortReceiverPresetHint : 3;
    UINT16 Reserved2 : 1;
  } Bits;
  UINT16   Uint16;
} PCI_EXPRESS_REG_LANE_EQUALIZATION_CONTROL;

typedef struct {
  PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER                Header;
  PCI_EXPRESS_REG_LINK_CONTROL3                           LinkControl3;
  UINT32                                                  LaneErrorStatus;
  PCI_EXPRESS_REG_LANE_EQUALIZATION_CONTROL               EqualizationControl[2];
} PCI_EXPRESS_EXTENDED_CAPABILITIES_SECONDARY_PCIE;

#pragma pack()

#endif