netdev - Re: [PATCH net-next v3 0/2] veth and GSO maximums

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Date:   Fri, 8 Dec 2017 16:15:24 -0800
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Solio Sarabia <solio.sarabia@...el.com>
Cc:     netdev@...r.kernel.org, sthemmin@...rosoft.com, davem@...emloft.net
Subject: Re: [PATCH net-next v3 0/2] veth and GSO maximums

On Fri, 8 Dec 2017 15:50:25 -0800
Solio Sarabia <solio.sarabia@...el.com> wrote:

> On Fri, Dec 08, 2017 at 02:23:23PM -0500, David Miller wrote:
> > From: Stephen Hemminger <stephen@...workplumber.org>
> > Date: Thu,  7 Dec 2017 15:40:18 -0800
> >   
> > > This is the more general way to solving the issue of GSO limits
> > > not being set correctly for containers on Azure. If a GSO packet
> > > is sent to host that exceeds the limit (reported by NDIS), then
> > > the host is forced to do segmentation in software which has noticeable
> > > performance impact.
> > > 
> > > The core rtnetlink infrastructure already has the messages and
> > > infrastructure to allow changing gso limits. With an updated iproute2
> > > the following already works:
> > >   # ip li set dev dummy0 gso_max_size 30000
> > > 
> > > These patches are about making it easier with veth.  
> > 
> > Ok, this is definitely a step forward.
> > 
> > Series applied, thanks Stephen.  
> 
> Thanks.
> Still not seeing the iproute2 patch though, either master or net-next.

I held off on iproute2 until kernel change is accepted upstream.