netdev - Re: [PATCH] net: ip_finish_output_gso: If skb_gso_network_seglen exceeds MTU, do segmentation even for non IPSKB

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Message-ID: <20160709090616.GC2067@breakpoint.cc>
Date:	Sat, 9 Jul 2016 11:06:16 +0200
From:	Florian Westphal <fw@...len.de>
To:	David Miller <davem@...emloft.net>
Cc:	shmulik.ladkani@...ellosystems.com, fw@...len.de,
	edumazet@...gle.com, hannes@...essinduktion.org,
	shmulik.ladkani@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH] net: ip_finish_output_gso: If skb_gso_network_seglen
 exceeds MTU, do segmentation even for non IPSKB_FORWARDED skbs

David Miller <davem@...emloft.net> wrote:
> From: Shmulik Ladkani <shmulik.ladkani@...ellosystems.com>
> Date: Tue, 5 Jul 2016 17:05:41 +0300
> 
> > On Tue, 5 Jul 2016 15:03:27 +0200, fw@...len.de wrote:
> >> (Or did I misunderstand this setup...?)
> > 
> > tap0 bridged with vxlan0.
> > route to vxlan0's remote peer is via eth0, configured with small mtu.
> 
> Florian, any more comments?

Sorry, I commented now.  But I'd really like to hear what vxlan experts
have to say about this, seems in RFC (7348) universe endpoint fragmention is
not supposed to happen :-/