From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 783CCA0573; Thu, 5 Mar 2020 10:23:44 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id D6A092BB8; Thu, 5 Mar 2020 10:23:43 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id A18ED23D for ; Thu, 5 Mar 2020 10:23:41 +0100 (CET) X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Mar 2020 01:23:40 -0800 X-IronPort-AV: E=Sophos;i="5.70,517,1574150400"; d="scan'208";a="229635733" Received: from bricha3-mobl.ger.corp.intel.com ([10.251.89.129]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-SHA; 05 Mar 2020 01:23:38 -0800 Date: Thu, 5 Mar 2020 09:23:34 +0000 From: Bruce Richardson To: Avner Taieb Cc: "Roberts, Lee A." , "dev@dpdk.org" Message-ID: <20200305092334.GB289@bricha3-MOBL.ger.corp.intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.12.1 (2019-06-15) Subject: Re: [dpdk-dev] Need Help for Intel - i40e , XL710 40GbE Controller 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Mar 04, 2020 at 08:05:27PM +0200, Avner Taieb wrote: > Thanks Lee. I already read it and tried the potential remedy that is > suggested i.e. enabling the multi driver support , but it didn't solved the > problem. > Are there more setting documented anywhere ? > Did you try using igb_uio driver from DPDK as the kernel module to see if that works? The IOMMU grouping of the ports may be causing issues. /Bruce > On Wed, Mar 4, 2020 at 7:33 PM Roberts, Lee A. wrote: > > > See https://www.kernel.org/doc/Documentation/networking/i40e.rst, in > > particular, > > read the paragraph on "Unexpected Issues when the device driver and DPDK > > share a device". > > > > - Lee > > > > -----Original Message----- > > From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Avner Taieb > > Sent: Wednesday, March 4, 2020 9:48 AM > > To: dev@dpdk.org > > Subject: [dpdk-dev] Need Help for Intel - i40e , XL710 40GbE Controller > > > > Hi, > > I am using XL710 40GbE Controller with two ports. > > The way I am using them is one port is configured to vfio-pci for using > > with dpdk in user space and the other is left to the kernel driver and for > > a seperate application that does not use DPDK. > > As soon as DPDK initialize and start the port, the other port > > become unusable. > > > > Is there any setting/configuration that I am missing ? > > > > Thanks, > > Avner > >