From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <dev-bounces@dpdk.org> Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6560BA0487 for <public@inbox.dpdk.org>; Mon, 1 Jul 2019 17:58:31 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AE8091B9FC; Mon, 1 Jul 2019 17:58:15 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 3BD981B9F8 for <dev@dpdk.org>; Mon, 1 Jul 2019 17:58:13 +0200 (CEST) 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 fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Jul 2019 08:58:12 -0700 X-IronPort-AV: E=Sophos;i="5.63,439,1557212400"; d="scan'208";a="154127151" Received: from bricha3-mobl.ger.corp.intel.com ([10.237.221.51]) by orsmga007-auth.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 01 Jul 2019 08:58:11 -0700 Date: Mon, 1 Jul 2019 16:58:08 +0100 From: Bruce Richardson <bruce.richardson@intel.com> To: dev@dpdk.org Cc: thomas@monjalon.net, jerinj@marvell.com, jiayu.hu@intel.com Message-ID: <20190701155808.GC386@bricha3-MOBL.ger.corp.intel.com> References: <20190530212525.40370-1-bruce.richardson@intel.com> <20190701155600.43695-1-bruce.richardson@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190701155600.43695-1-bruce.richardson@intel.com> User-Agent: Mutt/1.11.4 (2019-03-13) Subject: Re: [dpdk-dev] [PATCH v4 0/9] raw/ioat: driver for Intel QuickData Technology X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://mails.dpdk.org/options/dev>, <mailto:dev-request@dpdk.org?subject=unsubscribe> List-Archive: <http://mails.dpdk.org/archives/dev/> List-Post: <mailto:dev@dpdk.org> List-Help: <mailto:dev-request@dpdk.org?subject=help> List-Subscribe: <https://mails.dpdk.org/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> Errors-To: dev-bounces@dpdk.org Sender: "dev" <dev-bounces@dpdk.org> On Mon, Jul 01, 2019 at 04:55:51PM +0100, Bruce Richardson wrote: > This patch series adds support for the Intel QuickData Technology > device, part of the Intel I/O Acceleration Technology (Intel I/OAT). It > is a raw device for allowing hardware DMA i.e. data copies in hardware. > > Performing the copies in hardware can provide performance improvements > for applications where the average copy size is reasonably large, e.g. > 1k packets. For smaller packets, e.g. 64-256 bytes, offloading the copy > may reduce performance due to the overhead of using hardware. > Apologies, forgot to mention this set has a dependency on: http://patches.dpdk.org/project/dpdk/list/?series=5120 /Bruce