From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Wang, Yipeng1" <yipeng1.wang@intel.com>
Subject: Re: [PATCH v4 3/7] member: implement vBF mode
Date: Tue, 3 Oct 2017 01:24:38 +0000
Message-ID: <D2C4A16CA39F7F4E8E384D204491D7A644576A3C@ORSMSX105.amr.corp.intel.com>
References: <1504655989-1518-1-git-send-email-yipeng1.wang@intel.com>
 <1506534034-39433-1-git-send-email-yipeng1.wang@intel.com>
 <1506534034-39433-4-git-send-email-yipeng1.wang@intel.com>
 <E115CCD9D858EF4F90C690B0DCB4D8976CC28D4C@IRSMSX108.ger.corp.intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Cc: "thomas@monjalon.net" <thomas@monjalon.net>, "Tai, Charlie"
 <charlie.tai@intel.com>, "Gobriel, Sameh" <sameh.gobriel@intel.com>,
 "Mcnamara, John" <john.mcnamara@intel.com>
To: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>, "dev@dpdk.org"
 <dev@dpdk.org>
Return-path: <dev-bounces@dpdk.org>
Received: from mga03.intel.com (mga03.intel.com [134.134.136.65])
 by dpdk.org (Postfix) with ESMTP id 2C6521B27D
 for <dev@dpdk.org>; Tue,  3 Oct 2017 03:24:40 +0200 (CEST)
In-Reply-To: <E115CCD9D858EF4F90C690B0DCB4D8976CC28D4C@IRSMSX108.ger.corp.intel.com>
Content-Language: en-US
List-Id: DPDK patches and discussions <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>
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