FreeBSD discarding received packets > MTU

[David Christensen]

> > > Internet ettiquette demands being gracious in what you accept.
> > > The default policy of FreeBSD is to accept such packets.
> > > This is a really weird bug to track down.
> > > Other drivers support it.
> > > 
> > > This isn't worth making a stand over, unless you're trying
> > > to hold users of YOUR driver hostage.
> > > 
> > 
> > I'm just being cautious about making changes before I understand
> > all of the implications.  The driver's current behavior is
> > supported by IEEE 802.3 specification (802.3-2005, 4.2.4.2.1)
> > and is implemented in the same way for other operating systems
> > that are very widely deployed (including Windows and Linux)
> > without any reported problems.  The existing bge driver which
> > was developed for FreeBSD 10 years ago also operates this way,
> > so all of my references for porting this driver happen to agree
> > on the same implementation.
> 
> Which is all well and good, but the age of a bug does not a feature
> make.
> 
> Please think of the four points I raised.
> 
> I think it makes sense to possibly add a "enforce rx mtu" knob
> somewhere, but it should likely be turned off.

That's the plan.

Dave