diff options
| -rw-r--r-- | MdePkg/Include/IndustryStandard/PciExpress40.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/MdePkg/Include/IndustryStandard/PciExpress40.h b/MdePkg/Include/IndustryStandard/PciExpress40.h index 9d9b272546..0564d72861 100644 --- a/MdePkg/Include/IndustryStandard/PciExpress40.h +++ b/MdePkg/Include/IndustryStandard/PciExpress40.h @@ -4,6 +4,7 @@ Support for the PCI Express 4.0 standard. This header file may not define all structures. Please extend as required.
Copyright (c) 2018, American Megatrends, Inc. All rights reserved.<BR>
+Copyright (c) 2020, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -78,6 +79,33 @@ typedef struct { } PCI_EXPRESS_EXTENDED_CAPABILITIES_PHYSICAL_LAYER_16_0;
///@}
+/// The Designated Vendor Specific Capability definitions
+/// Based on section 7.9.6 of PCI Express Base Specification 4.0.
+///@{
+typedef union {
+ struct {
+ UINT32 DvsecVendorId : 16; //bit 0..15
+ UINT32 DvsecRevision : 4; //bit 16..19
+ UINT32 DvsecLength : 12; //bit 20..31
+ }Bits;
+ UINT32 Uint32;
+}PCI_EXPRESS_DESIGNATED_VENDOR_SPECIFIC_HEADER_1;
+
+typedef union {
+ struct {
+ UINT16 DvsecId : 16; //bit 0..15
+ }Bits;
+ UINT16 Uint16;
+}PCI_EXPRESS_DESIGNATED_VENDOR_SPECIFIC_HEADER_2;
+
+typedef struct {
+ PCI_EXPRESS_EXTENDED_CAPABILITIES_HEADER Header;
+ PCI_EXPRESS_DESIGNATED_VENDOR_SPECIFIC_HEADER_1 DesignatedVendorSpecificHeader1;
+ PCI_EXPRESS_DESIGNATED_VENDOR_SPECIFIC_HEADER_2 DesignatedVendorSpecificHeader2;
+ UINT8 DesignatedVendorSpecific[1];
+}PCI_EXPRESS_EXTENDED_CAPABILITIES_DESIGNATED_VENDOR_SPECIFIC;
+///@}
+
#pragma pack()
#endif
|