netdev - Re: extending ndo_add_rx_vxlan

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Message-ID: <CAJZOPZJ3J7T=i2QXQPr80Qb-V8RT3uPJaNFDnrOpYxJ1Mt_LNQ@mail.gmail.com>
Date:	Mon, 28 Oct 2013 20:19:20 +0200
From:	Or Gerlitz <or.gerlitz@...il.com>
To:	Joseph Gasparakis <joseph.gasparakis@...el.com>
Cc:	Or Gerlitz <ogerlitz@...lanox.com>,
	John Fastabend <john.r.fastabend@...el.com>,
	Yan Burman <yanb@...lanox.com>,
	netdev <netdev@...r.kernel.org>,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: extending ndo_add_rx_vxlan_port

On Mon, Oct 28, 2013 at 7:59 PM, Joseph Gasparakis
> On Mon, 28 Oct 2013, Or Gerlitz wrote:
>> On Mon, Oct 28, 2013 at 1:44 AM, Joseph Gasparakis wrote:

>> > VXLAN implementation is not done like VLAN. VLANs are stacked on top of
>> > real interfaces and what you are saying makes sense. VXLAN however is
>> > using ip[6]_tunnel_xmit, and this is why we need to notify all the
>>
>> As the name of the ndo you added ndo_add_rx_vxlan_port suggests -- HW
>> needs that for RX offloads. So basically, what I am saying is: in a
>> similar manner that we already program the NIC "over which" the vxlan
>> instance is set to listen on the multicast address which is associated
>> with that vxlan segement, lets give them a hint that packets arriving
>> on this group are vxlan ones, so they can use it for programming
>> steering rules.
>
> Why don't you write up some code so everyone has something to look at?
> Then we can see what makes sense to do in terms of the existing or new ndos.

sure, code talks, indeed, still, looking on net-next, for the current
ndo there's no in tree consumer unless I miss anything, did I?

Or.
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