Re: [edk2-devel] [PATCH V2] MdePkg-PciExpress40.h: DVSEC definition missing

[Liming Gao]

That's enough. 

> -----Original Message-----
> From: Javeed, Ashraf <ashraf.javeed at intel.com>
> Sent: Wednesday, March 18, 2020 12:51 PM
> To: Gao, Liming <liming.gao at intel.com>; Liu, Zhiguang <zhiguang.liu at intel.com>; devel at edk2.groups.io
> Cc: Kinney, Michael D <michael.d.kinney at intel.com>
> Subject: RE: [PATCH V2] MdePkg-PciExpress40.h: DVSEC definition missing
> 
> Yes, I verified the build with this patch by directly referencing the new data types in a source file.
> Thanks
> Ashraf
> 
> > -----Original Message-----
> > From: Gao, Liming <liming.gao at intel.com>
> > Sent: Wednesday, March 18, 2020 8:11 AM
> > To: Liu, Zhiguang <zhiguang.liu at intel.com>; Javeed, Ashraf
> > <ashraf.javeed at intel.com>; devel at edk2.groups.io
> > Cc: Kinney, Michael D <michael.d.kinney at intel.com>
> > Subject: RE: [PATCH V2] MdePkg-PciExpress40.h: DVSEC definition missing
> >
> > Ashraf:
> >   The change is good. Have you verified the build with this patch?
> >
> >   Reviewed-by: Liming Gao <liming.gao at intel.com>
> >
> > Thanks
> > Liming
> > -----Original Message-----
> > From: Liu, Zhiguang <zhiguang.liu at intel.com>
> > Sent: 2020年3月17日 16:08
> > To: Javeed, Ashraf <ashraf.javeed at intel.com>; devel at edk2.groups.io
> > Cc: Kinney, Michael D <michael.d.kinney at intel.com>; Gao, Liming
> > <liming.gao at intel.com>
> > Subject: RE: [PATCH V2] MdePkg-PciExpress40.h: DVSEC definition missing
> >
> > Reviewed-by: Zhiguang Liu <zhiguang.liu at intel.com>
> >
> > -----Original Message-----
> > From: Javeed, Ashraf
> > Sent: Tuesday, March 17, 2020 4:04 PM
> > To: devel at edk2.groups.io
> > Cc: Kinney, Michael D <michael.d.kinney at intel.com>; Gao, Liming
> > <liming.gao at intel.com>; Liu, Zhiguang <zhiguang.liu at intel.com>
> > Subject: [PATCH V2] MdePkg-PciExpress40.h: DVSEC definition missing
> >
> > 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.javeed at intel.com>
> > Cc: Michael D Kinney <michael.d.kinney at intel.com>
> > Cc: Liming Gao <liming.gao at intel.com>
> > Cc: Zhiguang Liu <zhiguang.liu at 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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