Re: Reboot on *DOM0* while/after installing GPLPV drivers

[Manuel Bouyer <bouyer%antioche.eu.org@localhost>]

On Thu, Dec 12, 2013 at 06:07:14PM +0000, Mike C. wrote:
> 
> I've been working with James Harper (the gplpv drivers dev) on this, or
> better... he's been doing all the work!
> 
> We are still testing but It seems that he pretty much solved the problem!
> 
> Quoting his words:
> "Looking in the backend source, netbsd definitely doesn't know about or
> advertise support for gso, so it's a bug in my drivers that it is
> enabled when the "feature-gso-tcpv4" doesn't even exist. Should be easy
> to fix."
> 
> I found a similar problem with FreeBSD-10 Domu's, seems that the PV
> drivers also expect TSO/GSO features are there, but they might not be,
> depending on the Dom0 support.
> 
> I wonder though, and sorry if I'm about to say something ridiculous...
> but could NetBSD Xen backhend be modified to advertise this? IIRC NetBSD
> supports TSO right?

For some ethernet adapters.
Il would require a lot of work to support it on the domU site:
support at the bridge level, and then emulate it if the ethernet adapter
doesn't support it.

-- 
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
     NetBSD: 26 ans d'experience feront toujours la difference
--