From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chris Wright <chrisw-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: Ethtool support in DPDK pmd
Date: Mon, 2 Jun 2014 13:37:35 -0700
Message-ID: <20140602203735.GL8384@x220.localdomain>
References: <CAAJNys+ZkPdnZaN58d+FMf75vcKJTWenWvHLBXCSBjzY0WFZ4w@mail.gmail.com>
 <5D695A7F6F10504DBD9B9187395A21797D0CF42B@ORSMSX112.amr.corp.intel.com>
 <CAAJNysKzUt1KtzQVj0_rQtDPBfjKi=jYmyb57xU3OxdAS1wE3A@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Cc: "dev-VfR2kkLFssw@public.gmane.org" <dev-VfR2kkLFssw@public.gmane.org>
To: HS <hyunseok-EkmVulN54Sk@public.gmane.org>
Return-path: <dev-bounces-VfR2kkLFssw@public.gmane.org>
Content-Disposition: inline
In-Reply-To: <CAAJNysKzUt1KtzQVj0_rQtDPBfjKi=jYmyb57xU3OxdAS1wE3A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev-VfR2kkLFssw@public.gmane.org>
List-Help: <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request-VfR2kkLFssw@public.gmane.org?subject=subscribe>
Errors-To: dev-bounces-VfR2kkLFssw@public.gmane.org
Sender: "dev" <dev-bounces-VfR2kkLFssw@public.gmane.org>

* HS (hyunseok-EkmVulN54Sk@public.gmane.org) wrote:
> Thanks for your reply.
> 
> Sure KNI can offer ethtool interface.  But suppose I am already running a
> DPDK application on a physical port, but at the same time I want to control
> the port with ethtool like interface.  How could I do that?

HS, I might be missing something there, but with the current model of
usermode device drivers I don't think this is simple.

If drivers stayed in kernel and kernel drivers exposed a mechansim for
registering application dma buffers for dpdk apps, then ethtool would
simply work as-is.

thanks,
-chris