BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2598
All registers definition of DVSEC are defined as per the PCI Express Base
Specification 4.0 chapter 7.9.6.
Signed-off-by: Ashraf Javeed <ashraf.jav...@intel.com>
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Zhiguang Liu <zhiguang....@intel.com>
V2: fixed the comment section description for DVSEC definitions
---
MdePkg/Include/IndustryStandard/PciExpress40.h | 28
++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
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
--
2.21.0.windows.1
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