Richard:
  Thanks for your contribution. This is new feature. Can you submit feature
request to https://bugzilla.tianocore.org/? If you have no account in
https://bugzilla.tianocore.org/, you can ask help for 'Demeter, Miki' <miki.
demeter@intel.com>. 

  For the code, what's the purpose of
UsbNetworkPkg/NetworkCommon/PxeFunction.c? Does NetworkCommon support PXE?

Thanks
Liming
> -----邮件原件-----
> 发件人: devel@edk2.groups.io <devel@edk2.groups.io> 代表 RichardHo
> [何明忠] via groups.io
> 发送时间: 2022年8月31日 10:31
> 收件人: devel@edk2.groups.io
> 抄送: Andrew Fish <afish@apple.com>; Leif Lindholm
> <quic_llindhol@quicinc.com>; Michael D Kinney
> <michael.d.kinney@intel.com>; Michael Kubacki
> <michael.kubacki@microsoft.com>; Leif Lindholm <leif@nuviainc.com>;
> Zhiguang Liu <zhiguang.liu@intel.com>; Liming Gao
> <gaoliming@byosoft.com.cn>; Hao A Wu <hao.a.wu@intel.com>; Ray Ni
> <ray.ni@intel.com>; TonyLo [羅金松] <TonyLo@ami.com>
> 主题: [edk2-devel] [PATCH] UsbNetworkPkg: add USB network devices
> support
> 
> UsbNetworkPkg provides network functions for USB ACM, USB NCM,
> and USB RNDIS network device.
> 
> Signed-off-by: Richard Ho <richardho@ami.com>
> Cc: Andrew Fish <afish@apple.com>
> Cc: Leif Lindholm <quic_llindhol@quicinc.com>
> Cc: Michael D Kinney <michael.d.kinney@intel.com>
> Cc: Michael Kubacki <michael.kubacki@microsoft.com>
> Cc: Leif Lindholm <leif@nuviainc.com>
> Cc: Zhiguang Liu <zhiguang.liu@intel.com>
> Acked-by: Michael D Kinney <michael.d.kinney@intel.com>
> Acked-by: Liming Gao <gaoliming@byosoft.com.cn>
> Acked-by: Leif Lindholm <quic_llindhol@quicinc.com>
> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
> Reviewed-by: Ray Ni <ray.ni@intel.com>
> Reviewed-by: Tony Lo <tonylo@ami.com>
> ---
>  UsbNetworkPkg/Config/UsbNetworkPkg.inc.dsc    |    9 +
>  .../Config/UsbNetworkPkgComponentsDxe.inc.dsc |   20 +
>  .../Config/UsbNetworkPkgComponentsDxe.inc.fdf |   21 +
>  .../Config/UsbNetworkPkgDefines.inc.dsc       |   23 +
>  .../Include/Protocol/UsbEthernetProtocol.h    |  872 +++++++++
>  UsbNetworkPkg/NetworkCommon/ComponentName.c   |  264 +++
>  UsbNetworkPkg/NetworkCommon/DriverBinding.c   |  583 ++++++
>  UsbNetworkPkg/NetworkCommon/DriverBinding.h   |  263 +++
>  UsbNetworkPkg/NetworkCommon/NetworkCommon.inf |   43 +
>  UsbNetworkPkg/NetworkCommon/PxeFunction.c     | 1734
> +++++++++++++++++
>  UsbNetworkPkg/ReadMe.md                       |   65 +
>  UsbNetworkPkg/ReleaseNotes.md                 |   11 +
>  UsbNetworkPkg/UsbCdcEcm/ComponentName.c       |  170 ++
>  UsbNetworkPkg/UsbCdcEcm/UsbCdcEcm.c           |  504 +++++
>  UsbNetworkPkg/UsbCdcEcm/UsbCdcEcm.h           |  211 ++
>  UsbNetworkPkg/UsbCdcEcm/UsbCdcEcm.inf         |   41 +
>  UsbNetworkPkg/UsbCdcEcm/UsbEcmFunction.c      |  861 ++++++++
>  UsbNetworkPkg/UsbCdcNcm/ComponentName.c       |  170 ++
>  UsbNetworkPkg/UsbCdcNcm/UsbCdcNcm.c           |  508 +++++
>  UsbNetworkPkg/UsbCdcNcm/UsbCdcNcm.h           |  245 +++
>  UsbNetworkPkg/UsbCdcNcm/UsbCdcNcm.inf         |   41 +
>  UsbNetworkPkg/UsbCdcNcm/UsbNcmFunction.c      |  946 +++++++++
>  UsbNetworkPkg/UsbNetworkPkg.dec               |   32 +
>  UsbNetworkPkg/UsbRndis/ComponentName.c        |  172 ++
>  UsbNetworkPkg/UsbRndis/UsbRndis.c             |  848 ++++++++
>  UsbNetworkPkg/UsbRndis/UsbRndis.h             |  569 ++++++
>  UsbNetworkPkg/UsbRndis/UsbRndis.inf           |   41 +
>  UsbNetworkPkg/UsbRndis/UsbRndisFunction.c     | 1587
> +++++++++++++++
>  28 files changed, 10854 insertions(+)
>  create mode 100644 UsbNetworkPkg/Config/UsbNetworkPkg.inc.dsc
>  create mode 100644
> UsbNetworkPkg/Config/UsbNetworkPkgComponentsDxe.inc.dsc
>  create mode 100644
> UsbNetworkPkg/Config/UsbNetworkPkgComponentsDxe.inc.fdf
>  create mode 100644
> UsbNetworkPkg/Config/UsbNetworkPkgDefines.inc.dsc
>  create mode 100644
> UsbNetworkPkg/Include/Protocol/UsbEthernetProtocol.h
>  create mode 100644
> UsbNetworkPkg/NetworkCommon/ComponentName.c
>  create mode 100644 UsbNetworkPkg/NetworkCommon/DriverBinding.c
>  create mode 100644 UsbNetworkPkg/NetworkCommon/DriverBinding.h
>  create mode 100644
> UsbNetworkPkg/NetworkCommon/NetworkCommon.inf
>  create mode 100644 UsbNetworkPkg/NetworkCommon/PxeFunction.c
>  create mode 100644 UsbNetworkPkg/ReadMe.md
>  create mode 100644 UsbNetworkPkg/ReleaseNotes.md
>  create mode 100644 UsbNetworkPkg/UsbCdcEcm/ComponentName.c
>  create mode 100644 UsbNetworkPkg/UsbCdcEcm/UsbCdcEcm.c
>  create mode 100644 UsbNetworkPkg/UsbCdcEcm/UsbCdcEcm.h
>  create mode 100644 UsbNetworkPkg/UsbCdcEcm/UsbCdcEcm.inf
>  create mode 100644 UsbNetworkPkg/UsbCdcEcm/UsbEcmFunction.c
>  create mode 100644 UsbNetworkPkg/UsbCdcNcm/ComponentName.c
>  create mode 100644 UsbNetworkPkg/UsbCdcNcm/UsbCdcNcm.c
>  create mode 100644 UsbNetworkPkg/UsbCdcNcm/UsbCdcNcm.h
>  create mode 100644 UsbNetworkPkg/UsbCdcNcm/UsbCdcNcm.inf
>  create mode 100644 UsbNetworkPkg/UsbCdcNcm/UsbNcmFunction.c
>  create mode 100644 UsbNetworkPkg/UsbNetworkPkg.dec
>  create mode 100644 UsbNetworkPkg/UsbRndis/ComponentName.c
>  create mode 100644 UsbNetworkPkg/UsbRndis/UsbRndis.c
>  create mode 100644 UsbNetworkPkg/UsbRndis/UsbRndis.h
>  create mode 100644 UsbNetworkPkg/UsbRndis/UsbRndis.inf
>  create mode 100644 UsbNetworkPkg/UsbRndis/UsbRndisFunction.c
> 
> 
>