Hi Abner,
Ans #1. I think the USB network feature is better in the UsbNetworkPkg. It is
easy to control USB network stack in this package.
The package is same as NetworkPkg(The NetworkPkg gathers all
network stack features). The UsbNetworkPkg could gather the USB network stack.
Ans #2. OK. I will rename it next.
Ans #4 Other driver could use EFI_OPEN_PROTOCOL_BY_DRIVER with
USB_ETHERNET_PROTOCOL to own on the specific USB CDC device.
But, the specific USB CDC driver need to install the binding
driver before NetworkCommon driver.
Ans #5 NetworkCommon driver build a Mac device path that link PciIo device
path.
So, SNP driver could found PciIo device path when NetworkCommon
driver to install the EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL.
Thanks,
Richard
-----Original Message-----
From: Chang, Abner <[email protected]>
Sent: 2022年9月9日 3:07 PM
To: [email protected]; [email protected]; RichardHo [何明忠]
<[email protected]>
Cc: Andrew Fish <[email protected]>; Leif Lindholm <[email protected]>;
Michael D Kinney <[email protected]>; Michael Kubacki
<[email protected]>; Zhiguang Liu <[email protected]>; Liming
Gao <[email protected]>; TonyLo [羅金松] <[email protected]>
Subject: [EXTERNAL] RE: [edk2-devel] [PATCH] UsbNetworkPkg: add USB network
devices support
**CAUTION: The e-mail below is from an external source. Please exercise caution
before opening attachments, clicking links, or following guidance.**
[AMD Official Use Only - General]
Hi Richard,
That is pretty hard to give the in-line comment in this huge patch email. You
would be also hard to find the comments given to each module or the protocol
header file.
So fist all of, please organize your change into several patches. For example,
1. UsbEthernetProtocol.h 2. UsbRndis module 3. UsbCdcNcm module 4. UsbCdcEcm
module 5. NetworkCommon module
Some rough feedbacks to this change before I giving the comments to each patch
after you resending the new patch set.
1. I suggest having UsbNetwork folder under MdeModulePkg/Usb/. Then under
UsbNetwork, you can have those four USB network related modules. However, we
can Rename NetwrokCommon to UsbNetwork if your are ok with it.
2. UsbEhernetProtocol is not an EFI protocol, so please add EdkII as the prefix
to UsbEthernetProtocol, it would be EdkIIUsbEthernetProtocol. And we can have
UsbEthernetProtocol.h under MdeModulePkg/Include/Protocol 4. From this change,
NetwrokCommon driver listens to USB_ETHERNET_PROTOCOL and install EFI NII
protocol for each instance. However, the upper layer driver wouldn't know the
CDC interface class/subclass/protocol if it only listen to
USB_ETHERNET_PROTOCOL and install its own SNP on the specific USB CDC device;
in the case if there are multiple USB CDC devices attached on the system. Is my
understanding correct?
5. I don’t see the UsbEthernetProtocol based SNP protocol is installed and the
SNP driver under NetworkPkg has the dependency with PciIo. Do we have to
implement UsbEthernetProtocol based SNP by our own?
I will check the functionality on our platform if I get the chance.
Thanks
Abner
> -----Original Message-----
> From: [email protected] <[email protected]> On Behalf Of Rebecca
> Cran via groups.io
> Sent: Saturday, September 3, 2022 5:48 AM
> To: [email protected]; [email protected]
> Cc: Andrew Fish <[email protected]>; Leif Lindholm
> <[email protected]>; Michael D Kinney
> <[email protected]>; Michael Kubacki
> <[email protected]>; Zhiguang Liu
> <[email protected]>; Liming Gao <[email protected]>;
> TonyLo [羅金松]
> <[email protected]>
> Subject: Re: [edk2-devel] [PATCH] UsbNetworkPkg: add USB network
> devices support
>
> [CAUTION: External Email]
>
> I've pushed this patch to a branch at
> https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fnam1
> 1.safelinks.protection.outlook.com%2F%3Furl%3Dhttps%253A%252F%252Fgith
> &data=05%7C01%7Crichardho%40ami.com%7C1ffd2a8dbf6f4cda9da908da9231
> e426%7C27e97857e15f486cb58e86c2b3040f93%7C1%7C0%7C637983040232493161%7
> CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1
> haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=XK3dw8vGMtln2Ig6Rcieyw6l
> orLdsvy2Oko9gAllSK0%3D&reserved=0
> ub.com%2Fbcran%2Fedk2%2Ftree%2Fusb-
> net&data=05%7C01%7Cabner.chang%40amd.com%7C2c812dc15b9542b
> 8a64308da8d2cdf2b%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C
> 637977521120662673%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwM
> DAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7
> C&sdata=ZFcSw3AL0MnljvyODrv1dYAL8LuadwCYe65xhE1hXWY%3D&a
> mp;reserved=0 .
>
> --
> Rebecca Cran
>
> On 9/1/22 23:24, RichardHo [何明忠] via groups.io wrote:
> > UsbNetworkPkg provides network functions for USB ACM, USB NCM, and
> USB
> > RNDIS network device.
> >
> > Signed-off-by: Richard Ho <[email protected]>
> > Cc: Andrew Fish <[email protected]>
> > Cc: Leif Lindholm <[email protected]>
> > Cc: Michael D Kinney <[email protected]>
> > Cc: Michael Kubacki <[email protected]>
> > Cc: Zhiguang Liu <[email protected]>
> > Cc: Liming Gao <[email protected]>
> > Reviewed-by: Tony Lo <[email protected]>
> > ---
> > UsbNetworkPkg/Config/UsbNetworkPkg.inc.dsc | 9 +
> > .../Config/UsbNetworkPkgComponentsDxe.inc.dsc | 20 +
> > .../Config/UsbNetworkPkgComponentsDxe.inc.fdf | 20 +
> > .../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, 10853 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
>
>
>
>
>
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