From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id B9CE129D6 for ; Tue, 8 Nov 2016 02:20:59 +0100 (CET) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP; 07 Nov 2016 17:20:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.31,459,1473145200"; d="scan'208";a="912613" Received: from fmsmsx105.amr.corp.intel.com ([10.18.124.203]) by orsmga002.jf.intel.com with ESMTP; 07 Nov 2016 17:20:57 -0800 Received: from fmsmsx117.amr.corp.intel.com (10.18.116.17) by FMSMSX105.amr.corp.intel.com (10.18.124.203) with Microsoft SMTP Server (TLS) id 14.3.248.2; Mon, 7 Nov 2016 17:20:57 -0800 Received: from shsmsx151.ccr.corp.intel.com (10.239.6.50) by fmsmsx117.amr.corp.intel.com (10.18.116.17) with Microsoft SMTP Server (TLS) id 14.3.248.2; Mon, 7 Nov 2016 17:20:57 -0800 Received: from shsmsx102.ccr.corp.intel.com ([169.254.2.206]) by SHSMSX151.ccr.corp.intel.com ([169.254.3.96]) with mapi id 14.03.0248.002; Tue, 8 Nov 2016 09:20:54 +0800 From: "Lu, Wenzhuo" To: "Montorsi, Francesco" , "dev@dpdk.org" Thread-Topic: rte_ixgbevf_pmd not reporting dropped packets Thread-Index: AdI5GhpUTSKmq5dBRlGT31W0qp5mtQAQ6u4Q Date: Tue, 8 Nov 2016 01:20:53 +0000 Message-ID: <6A0DE07E22DDAD4C9103DF62FEBC090939341C8E@shsmsx102.ccr.corp.intel.com> References: In-Reply-To: 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] rte_ixgbevf_pmd not reporting dropped packets 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: Tue, 08 Nov 2016 01:21:00 -0000 Hi Francesco, > -----Original Message----- > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Montorsi, Francesco > Sent: Tuesday, November 8, 2016 1:17 AM > To: dev@dpdk.org > Subject: [dpdk-dev] rte_ixgbevf_pmd not reporting dropped packets >=20 > Hi all, >=20 > I'm using DPDK inside the OS of a VM that is SR-IOV-accelerated. > I noticed however that the "rte_ixgbevf_pmd" PMD does not report drops...= I > am sending packets at TX side at 14Mpps; at the RX side I'm using "testpm= d" and > it's reporting 'just' 12Mpps, but zero drops (also through xstats). >=20 > Is this a known bug? > I found a message at > http://dpdk.org/ml/archives/dev/2016-March/035374.html > reporting a similar issue back in March this year... It's a known limitation. The stats are got from HW. But there're very limit= ed counters for VF. There's no similar counter as imiss for VF :( >=20 >=20 > Thanks, >=20 > Francesco Montorsi