em interface slow down on 8.0R

[Pyun YongHyeon]

On Tue, Jan 26, 2010 at 11:55:00AM -0800, Jack Vogel wrote:
> I've tried this patch, and it completely breaks IPv6 offloads, which DO work
> btw,
> our testers have a netperf stress test that does both ipv4 and ipv6, and
> that test
> fails 100% after this change.
> 
> I could go hacking at it myself but as its your code Pyun would you like to
> resolve this issue?
> 

I wonder how you could test IPv6 checksum offloading/TSO as FreeBSD
does not have that capability yet. Do we already have that
capability? I vaguely remember there was an effort to bring the
support in but I don't know current status. If we have the
capability I would have to update all other drivers that can do
IPv6 checksum offloading/TSO for IPv6.

> Regards,
> 
> Jack
> 
> 
> On Tue, Jan 26, 2010 at 9:40 AM, Jack Vogel <jfvogel at gmail.com> wrote:
> 
> > No, it hasn't, I need time to look it over and be convinced of what he was
> > doing.
> >
> > Jack
> >
> >
> >
> > On Tue, Jan 26, 2010 at 9:14 AM, Nick Rogers <ncrogers at gmail.com> wrote:
> >
> >> looks like the patch mentioned in kern/141843 has not been applied to the
> >> tree?
> >>
> >> On Tue, Jan 26, 2010 at 9:00 AM, Nick Rogers <ncrogers at gmail.com> wrote:
> >>
> >> > Is it advisable to patch 8.0-RELEASE kernel sources with the latest
> >> > (CURRENT) em driver (i.e., src/sys/dev/e1000)? It looks like there are
> >> some
> >> > updates to the driver since 8.0-RELEASE that may fix some problems?
> >> >
> >> >
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> >
> >