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 EA374F72 for ; Mon, 21 Dec 2015 16:29:31 +0100 (CET) Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga103.jf.intel.com with ESMTP; 21 Dec 2015 07:29:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,460,1444719600"; d="scan'208";a="845830017" Received: from irsmsx106.ger.corp.intel.com ([163.33.3.31]) by orsmga001.jf.intel.com with ESMTP; 21 Dec 2015 07:29:29 -0800 Received: from irsmsx111.ger.corp.intel.com (10.108.20.4) by IRSMSX106.ger.corp.intel.com (163.33.3.31) with Microsoft SMTP Server (TLS) id 14.3.248.2; Mon, 21 Dec 2015 15:28:24 +0000 Received: from irsmsx109.ger.corp.intel.com ([169.254.13.96]) by irsmsx111.ger.corp.intel.com ([169.254.2.223]) with mapi id 14.03.0248.002; Mon, 21 Dec 2015 15:28:24 +0000 From: "Burakov, Anatoly" To: "Yigit, Ferruh" Thread-Topic: [dpdk-dev] [PATCH] vfio: add no-iommu support Thread-Index: AQHRO+nQTVgHXiCJE0CDmD7MVOP0BJ7VjDeQgAAD24CAAAAfEA== Date: Mon, 21 Dec 2015 15:28:23 +0000 Message-ID: References: <20151221114643.GA30129@sivlogin002.ir.intel.com> <1450700305-26453-1-git-send-email-ferruh.yigit@intel.com> <20151221152623.GA20343@sivlogin002.ir.intel.com> In-Reply-To: <20151221152623.GA20343@sivlogin002.ir.intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [163.33.239.180] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] [PATCH] vfio: add no-iommu support 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: Mon, 21 Dec 2015 15:29:32 -0000 Hi Ferruh, > On Mon, Dec 21, 2015 at 03:15:46PM +0000, Burakov, Anatoly wrote: > > > This is based on patch from Alex Williamson: > > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/comm > > > it/?id=3D03 > > > 3291eccbdb > > > plus > > > http://dpdk.org/dev/patchwork/patch/9598/ > > > > > > This patch is intended to test above patches on DPDK rather than > > > official patch to DPDK. > > > > > > Test result is DPDK successfully run on no-iommu environment. > > > > > > > This is one approach :) I was thinking of another, building some kind o= f > more generic support for multiple VFIO drivers. It's a bit more code and > probably overkill as a solution to this particular problem, but hopefully= it'll > make it easier to add new VFIO drivers down the line (with each driver > having their own DMA mapping function), should we choose to do so. I'm st= ill > working on the patch, but if everyone is OK with this approach instead of= a > more general one, that's fine with me. > > > Hi Anatoly, >=20 > This patch sent just to show what changes done to test VFIO no-iommu I > mentioned, and to have a justification for the kernel patch, not sent as = a final > solution in DPDK, sorry for interrupting your work. >=20 > Thanks, > Ferruh Ah OK, I misread the part where it said that it is not to be applied as-is.= Thanks! Thanks, Anatoly