em interface slow down on 8.0R

[Nick Rogers]

Does any of this have anything to do with the fact that ALTQ seems to be
broken for em(4) under 8.0-RELEASE? I just ran into this similar problem
today where my PF/ALTQ hfsc rules no longer seem to do anything on em
interfaces.

http://forums.freebsd.org/showthread.php?t=6656

Any information regarding this would be appreciated. Thanks.

On Fri, Jan 29, 2010 at 9:45 AM, Jack Vogel <jfvogel at gmail.com> wrote:

> No need, I set it up and tried it, and I was right, it does not fail if
> that
> routine is not used. The interesting thing is that the igb driver, which
> has the same code, works fine.
>
> In any case, I'm hot on the track of this and hope I can figure it out
> today.
>
> Jack
>
>
> On Fri, Jan 29, 2010 at 5:38 AM, Marco van Tol <marco at tols.org> wrote:
>
> > On Thu, Jan 28, 2010 at 11:16:02AM -0800, Jack Vogel wrote:
> > > I am investigating it, and have a suspicion about what's going on, you
> > can
> > > assist in verifying my suspicion.  In if_em.c search for
> > "em_setup_vlan_hw",
> > > you will find a compile time option that uses that only if
> > FreeBSD_version
> > > is > 700029, hack the code however you wish so that it uses the OLD way
> > > (ie that it never calls em_setup_vlan_hw_support()) and see if that
> makes
> > > the issue disappear.
> >
> > Oh good, I will try that and let you know about the result first chance I
> > get.  Should be days rather then hours, but I'll make it asap.
> >
> > > If you have any problems or questions email me directly.
> >
> > Will do, thanks!
> >
> > Marco
> >
> >
> >
> >
> > > On Thu, Jan 28, 2010 at 4:17 AM, Marco van Tol <marco at tols.org> wrote:
> > >
> > > > On Tue, Jan 26, 2010 at 09:00:35AM -0800, Nick Rogers 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?
> > > >
> > > > While on the em subject, forgive me if I mail this to the
> inappropriate
> > > > place, but is there any ETA on progress for bug kern/141646?
> > > >
> > > > I'm currently suffering from it and would be willing to provide
> needed
> > > > assistance for fixing it.
> > > >
> > > > Thank you very much in advance,
> > > >
> > > > Marco van Tol
> >
> > --
> > Better to remain silent and be thought a fool
> > than to speak out and remove all doubt.
> > - Abraham Lincoln
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