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RE: xennet HLK certification


  • To: "paul@xxxxxxx" <paul@xxxxxxx>, "win-pv-devel@xxxxxxxxxxxxxxxxxxxx" <win-pv-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Connor Davis <davisc@xxxxxxxxxxxx>
  • Date: Mon, 7 Dec 2020 16:36:29 +0000
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  • Thread-topic: xennet HLK certification


> -----Original Message-----
> From: Paul Durrant <xadimgnik@xxxxxxxxx>
> Sent: Monday, December 7, 2020 9:08 AM
> To: Connor Davis <davisc@xxxxxxxxxxxx>; win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> Subject: RE: xennet HLK certification
> 
> Notice: This message originated outside of ainfosec.com
> 
> 
> 
> > -----Original Message-----
> > From: win-pv-devel <win-pv-devel-bounces@xxxxxxxxxxxxxxxxxxxx> On Behalf Of 
> > Connor Davis
> > Sent: 07 December 2020 15:55
> > To: win-pv-devel@xxxxxxxxxxxxxxxxxxxx
> > Subject: xennet HLK certification
> >
> > Hi All,
> >
> > My team has modified xen{bus,vif,iface,net} drivers that we have been 
> > testing with the 1909-compatible
> > HLK, and
> > the only test that is failing is NDISTest 6.5 PM_Requirements. It is 
> > complaining that xennet doesn't
> > support
> > No-Pause-On-Suspend. After poking around the Microsoft docs, it seems 
> > No-Pause-On-Suspend isn't
> > available
> > until NDIS 6.3, and xennet uses NDIS 6.1.
> >
> > Have you all seen this issue before? If so, is there a workaround for 
> > getting the test to pass? Or
> > perhaps it's best to
> > bump xennet's NDIS version and implement No-Pause-On-Suspend?
> >
> 
> Hi Connor,
> 
>   Been a while since I've run HLK tests myself but IIRC there was a filter 
> for the test failure, or you may need an exception. That
> said, if you're happy to bump up the NDIS version and fix any compat issues 
> then that would certainly be welcome. 6.4 has
> support
> for receive segment coalescing so that would help legitimize something we've 
> been doing for a long time :-)
> 
>   Cheers,
> 
>     Paul

I applied the latest filters, but it's still failing. In the short term we may 
go for the
exception, but I would expect next year we will work on bumping the version up.
We may get to it this year, but the holidays create some doubt there.

Thanks,
Connor Davis



 


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