From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id B96A710CC9 for ; Wed, 21 Dec 2016 23:14:34 +0100 (CET) Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga101.fm.intel.com with ESMTP; 21 Dec 2016 14:14:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,385,1477983600"; d="scan'208";a="45546720" Received: from fmsmsx103.amr.corp.intel.com ([10.18.124.201]) by fmsmga005.fm.intel.com with ESMTP; 21 Dec 2016 14:14:33 -0800 Received: from fmsmsx112.amr.corp.intel.com (10.18.116.6) by FMSMSX103.amr.corp.intel.com (10.18.124.201) with Microsoft SMTP Server (TLS) id 14.3.248.2; Wed, 21 Dec 2016 14:14:33 -0800 Received: from fmsmsx113.amr.corp.intel.com ([169.254.13.68]) by FMSMSX112.amr.corp.intel.com ([10.18.116.6]) with mapi id 14.03.0248.002; Wed, 21 Dec 2016 14:14:33 -0800 From: "Wiles, Keith" To: Kumaraparameshwaran Rathnavel CC: "users@dpdk.org" Thread-Topic: [dpdk-users] Network Drivers Thread-Index: AQHSW6niO321AeVgwEGzTEcJGjX55qETff4A Date: Wed, 21 Dec 2016 22:14:32 +0000 Message-ID: <4F04B62A-306E-44A4-A1FC-0B7B9BF21585@intel.com> References: <91B0B366-92CD-4257-B082-1623B01DE5DE@cloudsimple.com> In-Reply-To: <91B0B366-92CD-4257-B082-1623B01DE5DE@cloudsimple.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.254.112.141] Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Re: [dpdk-users] Network Drivers X-BeenThere: users@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK usage discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 Dec 2016 22:14:36 -0000 > On Dec 21, 2016, at 10:46 AM, Kumaraparameshwaran Rathnavel wrote: >=20 > Hi All, >=20 > When I use the network Drivers provided by the API is the CRC error check= ing done by the hardware. Or is to be taken care by the software. I do not = see any of the example APIs doing . So I just wanted to ask it. We have a number of checksum the FCS (Frame Checksum) is normally done by t= he NIC plus FCS errors normally do not transfer the frame into memory. The = other Checksums UDP, IP, TCP are done in hardware and software depending on= the NIC being used. Need to read the docs for the NIC and then look at the= config or setup of the RX/TX for that NIC in the example applications. >=20 > Thanking you, > Param Regards, Keith