[dpdk-dev] [RFC] ethdev: add min/max MTU to device info

[Stephen Hemminger]

On Wed, 19 Dec 2018 03:37:16 +0100
Thomas Monjalon <thomas at monjalon.net> wrote:

> Hi Stephen,
> 
> Can we expect a v2 of this patch? At least for removing deprecation
> and bump ethdev version, etc?
> 
> 05/09/2018 18:41, Stephen Hemminger:
> > This addresses the usability issue raised by OVS at DPDK Userspace
> > summit. It adds general min/max mtu into device info. For compatiablity,
> > and to save space, it fits in a hole in existing structure.
> > 
> > The initial version sets max mtu to normal Ethernet, it is up to
> > PMD to set larger value if it supports Jumbo frames.
> > 
> > Fixing the drivers to use this is trivial and can be done by 18.11.
> > Already have some of the patches done.
> > 
> > Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>  
> 
> 
> 
> 

It needs more than just this patch to be worthwhile.
Need device drivers to fill in the max_mtu field, otherwise it would
just break jumbo frame support.

I suppose an initial patch to bump ethdev version would be possible for 19.05,
are there other API changes doing that already for that relaease.