From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 106232BE2 for ; Tue, 6 Nov 2018 12:34:17 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Nov 2018 03:34:17 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,471,1534834800"; d="scan'208";a="278724366" Received: from aburakov-mobl1.ger.corp.intel.com (HELO [10.237.220.143]) ([10.237.220.143]) by fmsmga006.fm.intel.com with ESMTP; 06 Nov 2018 03:34:16 -0800 To: Avinash Chaurasia , dev@dpdk.org References: From: "Burakov, Anatoly" Message-ID: Date: Tue, 6 Nov 2018 11:34:15 +0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] ubuntu 14.04 and intel controller 82574L not working X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 06 Nov 2018 11:34:18 -0000 On 02-Nov-18 9:06 PM, Avinash Chaurasia wrote: > Hi, > I am using ubuntu 14.04 with intel controller 82574L and I am neither able > to send any packets or receive. My dpdk version is 17.11. However, when I > switched to ubuntu 16.04, it worked with vfio-pci driver. Is something > wrong with 82574L driver in ubuntu 14.04? > Thanks > Avinash Kumar Chaurasia > If it works with vfio-pci driver but not with igb_uio driver, the most likely cause is that you were trying to run DPDK with IOMMU enabled (kernel command-line "intel_iommu=on iommu=on"). Switching to iommu=off or iommu=pt should fix the issue in that case. -- Thanks, Anatoly