From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCHv3 1/2] config/armv8a: disable igb_uio
Date: Wed, 11 May 2016 11:25:59 -0700
Message-ID: <20160511112559.69dcff13@xeon-e3>
References: <1462974479-26180-1-git-send-email-hemant.agrawal@nxp.com>
 <20160511082259.42905f98@xeon-e3>
 <20160511170215.GA1637@localhost.localdomain>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Cc: Hemant Agrawal <hemant.agrawal@nxp.com>, <dev@dpdk.org>,
 <jianbo.liu@linaro.org>, <santosh.shukla@caviumnetworks.com>,
 <thomas.monjalon@6wind.com>
To: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Return-path: <dev-bounces@dpdk.org>
Received: from mail-pa0-f48.google.com (mail-pa0-f48.google.com
 [209.85.220.48]) by dpdk.org (Postfix) with ESMTP id 2798D5954
 for <dev@dpdk.org>; Wed, 11 May 2016 20:25:47 +0200 (CEST)
Received: by mail-pa0-f48.google.com with SMTP id xk12so20462094pac.0
 for <dev@dpdk.org>; Wed, 11 May 2016 11:25:47 -0700 (PDT)
In-Reply-To: <20160511170215.GA1637@localhost.localdomain>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

On Wed, 11 May 2016 22:32:16 +0530
Jerin Jacob <jerin.jacob@caviumnetworks.com> wrote:

> On Wed, May 11, 2016 at 08:22:59AM -0700, Stephen Hemminger wrote:
> > On Wed, 11 May 2016 19:17:58 +0530
> > Hemant Agrawal <hemant.agrawal@nxp.com> wrote:
> > 
> > > IGB_UIO not supported for arm64 arch in kernel so disable.
> > > 
> > > Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
> > > Reviewed-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
> > 
> > Really, I have use IGB_UIO on ARM64
> 
> May I know what is the technical use case for igb_uio on arm64
> which cannot be addressed through vfio or vfioionommu.

I was running on older kernel which did not support vfioionommu mode.