On Sat, Jul 11, 2020 at 10:26:18PM +0100, Russell King - ARM Linux admin wrote:
> On Sat, Jul 11, 2020 at 10:32:04PM +0200, Andrew Lunn wrote:
> > Since changing the MTU of dsa slave interfaces was implemented, the
> > fec/mv88e6xxx combo has been giving warnings:
> >
> > [ 2.275925] mv88e6085 0.2:00: nonfatal error -95 setting MTU on port 9
> > [ 2.284306] eth1: mtu greater than device maximum
> > [ 2.287759] fec 400d1000.ethernet eth1: error -22 setting MTU to include
> > DSA overhead
> >
> > This patchset adds support for changing the MTU on mv88e6xxx switches,
> > which do support jumbo frames. And it modifies the FEC driver to
> > support its true MTU range, which is larger than the default Ethernet
> > MTU.
>
> It's not just the fec/mv88e6xxx combo - I've been getting them on
> Clearfog too. It just hasn't been important enough to report yet.
Hi Russell
That is the combination i have tested. mvneta has support for changing
its MTU. So this should stop the warnings on clearfog as well.
Andrew
