Message ID | 20200711203206.1110108-1-andrew@lunn.ch |
---|---|
Headers | show |
Series | Fix MTU warnings for fec/mv886xxx combo | expand |
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.
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
From: Andrew Lunn <andrew@lunn.ch> Date: Sat, 11 Jul 2020 22:32:04 +0200 > 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. Series applied, thanks Andrew.