From owner-freebsd-hackers@FreeBSD.ORG  Wed Feb  6 16:55:05 2013
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Date: Wed, 6 Feb 2013 17:55:03 +0100
From: Luigi Rizzo <rizzo@iet.unipi.it>
To: George Neville-Neil <gnn@neville-neil.com>
Subject: Re: Make kernel aware of NIC queues
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 "Alexander V. Chernikov" <melifaro@freebsd.org>, net@freebsd.org
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On Wed, Feb 06, 2013 at 11:05:59AM -0500, George Neville-Neil wrote:
> 
> On Feb 6, 2013, at 09:37 , Luigi Rizzo <rizzo@iet.unipi.it> wrote:
...
> > Linux has tried to come up with a common framework to implement
> > this kind of controls using "ethtool", and we should probably
> > have a look at their approach and reuse it (or at least the good ideas)
> > to avoid reinventing the same thing.
> > 
> And, though Luigi didn't say it, I will, this should integrate with netmap.

i did not say it because it will work without any extra effort:
- the netmap version i committed a few days ago already fetch
  the number of queues and the ring sizes at runtime;
- ethtool (or whatever we will call it) only operates on the
  configuration/control plane (number of queues and slots,
  partitioning of packets onto input queues, etc.), whereas netmap
  operates only on the data plane

cheers
luigi