From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id 61E34558E for ; Wed, 16 Mar 2016 07:07:01 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP; 15 Mar 2016 23:07:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,343,1455004800"; d="scan'208";a="934852394" Received: from fmsmsx106.amr.corp.intel.com ([10.18.124.204]) by orsmga002.jf.intel.com with ESMTP; 15 Mar 2016 23:07:00 -0700 Received: from fmsmsx154.amr.corp.intel.com (10.18.116.70) by FMSMSX106.amr.corp.intel.com (10.18.124.204) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 15 Mar 2016 23:06:59 -0700 Received: from shsmsx101.ccr.corp.intel.com (10.239.4.153) by FMSMSX154.amr.corp.intel.com (10.18.116.70) with Microsoft SMTP Server (TLS) id 14.3.248.2; Tue, 15 Mar 2016 23:06:59 -0700 Received: from shsmsx102.ccr.corp.intel.com ([169.254.2.232]) by SHSMSX101.ccr.corp.intel.com ([169.254.1.136]) with mapi id 14.03.0248.002; Wed, 16 Mar 2016 14:06:57 +0800 From: "Lu, Wenzhuo" To: Jianbo Liu , "Zhang, Helin" , "Ananyev, Konstantin" , "dev@dpdk.org" Thread-Topic: [dpdk-dev] [PATCH] ixgbe: avoid unnessary break when checking at the tail of rx hwring Thread-Index: AQHRff2HWoaUbkWeHUK0GnDxLH6axp9bl9NQ Date: Wed, 16 Mar 2016 06:06:56 +0000 Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC09090343BBF2@shsmsx102.ccr.corp.intel.com> References: <1457965558-15331-1-git-send-email-jianbo.liu@linaro.org> In-Reply-To: <1457965558-15331-1-git-send-email-jianbo.liu@linaro.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.239.127.40] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-dev] [PATCH] ixgbe: avoid unnessary break when checking at the tail of rx hwring X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Mar 2016 06:07:01 -0000 HI Jianbo, > -----Original Message----- > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Jianbo Liu > Sent: Monday, March 14, 2016 10:26 PM > To: Zhang, Helin; Ananyev, Konstantin; dev@dpdk.org > Cc: Jianbo Liu > Subject: [dpdk-dev] [PATCH] ixgbe: avoid unnessary break when checking at= the > tail of rx hwring >=20 > When checking rx ring queue, it's possible that loop will break at the ta= il while > there are packets still in the queue header. Would you like to give more details about in what scenario this issue will = be hit? Thanks.