On Mon, 17 Oct 2016 12:49:54 -0400 (EDT), David Miller wrote: > From: Jakub Kicinski <kubak...@wp.pl> > Date: Mon, 17 Oct 2016 17:20:06 +0100 > > > Please correct me if I'm wrong but it seems like we are now limiting > > _all_ ethernet drivers to ETH_DATA_LEN in net-next. > > No, because the driver can increase the netdev->max_mtu value as needed.
But since almost no driver is doing that, yet, right now in net-next jumbo frames are not possible, no? I thought the idea was the leave the value at 0 so drivers can opt-in as needed but since setup_ether() is initializing to 1500 now all ethernet driver get a default of limiting to 1500. IOW this patch made checks which were done only in eth_change_mtu() mandatory for all drivers.
