[PATCH 1/7] MdePkg/IndustryStandard/Pci23: add vendor-specific capability header

[Laszlo Ersek <lersek@redhat.com>]

Revision 2.2 of the PCI Spec defines Capability IDs 0 through 6,
inclusive, in Appendix H. It reserves IDs 7 through 255.

Revision 2.3 of the PCI Spec adds Capability IDs 7 through 0xC, inclusive,
in Appendix H. Capability ID 9 stands for "Vendor Specific".

Add the EFI_PCI_CAPABILITY_ID_VENDOR macro and the
EFI_PCI_CAPABILITY_VENDOR_HDR structure type to MdePkg/IndustryStandard,
in order to describe this capability header.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Marcel Apfelbaum <marcel@redhat.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
---
 MdePkg/Include/IndustryStandard/Pci23.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/MdePkg/Include/IndustryStandard/Pci23.h b/MdePkg/Include/IndustryStandard/Pci23.h
index 467354429e06..87bd16375c02 100644
--- a/MdePkg/Include/IndustryStandard/Pci23.h
+++ b/MdePkg/Include/IndustryStandard/Pci23.h
@@ -91,8 +91,9 @@
 ///
 /// PCI Capability List IDs and records.
 ///
 #define EFI_PCI_CAPABILITY_ID_PCIX    0x07
+#define EFI_PCI_CAPABILITY_ID_VENDOR  0x09
 
 #pragma pack(1)
 ///
 /// PCI-X Capabilities List, 
@@ -115,8 +116,17 @@ typedef struct {
   UINT32                  SplitTransCtrlRegUp;
   UINT32                  SplitTransCtrlRegDn;
 } EFI_PCI_CAPABILITY_PCIX_BRDG;
 
+///
+/// Vendor Specific Capability Header
+/// Table H-1: Capability IDs, PCI Local Bus Specification, 2.3
+///
+typedef struct {
+  EFI_PCI_CAPABILITY_HDR  Hdr;
+  UINT8                   Length;
+} EFI_PCI_CAPABILITY_VENDOR_HDR;
+
 #pragma pack()
 
 #define PCI_CODE_TYPE_EFI_IMAGE       0x03
 
-- 
2.14.1.3.gb7cf6e02401b