From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen-OTpzqLSitTUnbdJkjeBofR2eb7JE58TQ@public.gmane.org>
Subject: Re: [RFC PATCH 0/5] Introduce low-latency one-shot rx
 interrupt into DPDK with polling/interrupt switch control example
Date: Mon, 26 Jan 2015 17:07:09 +0000
Message-ID: <20150126170709.42fdd3fa@uryu.home.lan>
References: <1421747640-20978-1-git-send-email-danny.zhou@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Cc: dev-VfR2kkLFssw@public.gmane.org
To: Danny Zhou <danny.zhou-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Return-path: <dev-bounces-VfR2kkLFssw@public.gmane.org>
In-Reply-To: <1421747640-20978-1-git-send-email-danny.zhou-ral2JQCrhuEAvxtiuMwx3w@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>

On Tue, 20 Jan 2015 17:53:55 +0800
Danny Zhou <danny.zhou-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> wrote:

> This patchset includes below features:
> 1) Enable one-shot rx queue interrupt in ixgbe PMD for PF as well as VF.
> 2) Build on top of the VFIO mechanism instead of UIO, so it could support
> up to 64 interrupt vectors for rx queue interrupts.

This is very much needed in virtual environments where DPDK is used in
a guest. In that environment, VFIO is not supported only UIO will work.
Either using igb_uio or uio_generic driver is necessary.

Could you make this work for these as well?