Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756890AbZCWJE2 (ORCPT ); Mon, 23 Mar 2009 05:04:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756213AbZCWJES (ORCPT ); Mon, 23 Mar 2009 05:04:18 -0400 Received: from webbox687.server-home.net ([195.149.74.151]:47793 "EHLO webbox687.server-home.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752043AbZCWJER (ORCPT ); Mon, 23 Mar 2009 05:04:17 -0400 Message-ID: <49C7505B.2010205@systec-electronic.com> Date: Mon, 23 Mar 2009 10:03:23 +0100 From: =?ISO-8859-1?Q?Daniel_Kr=FCger?= User-Agent: Thunderbird 2.0.0.19 (Windows/20081209) MIME-Version: 1.0 To: david@lang.hm Cc: Alan Cox , Robert Schwebel , Greg KH , linux-kernel@vger.kernel.org, Michael Olbrich , Wolfram Sang , Marc Kleine-Budde , Thomas Gleixner Subject: Re: The Linux Staging tree, what it is and is not. References: <20090318183232.GA11594@kroah.com> <20090320005808.GM5367@pengutronix.de> <20090320100146.6599f671@lxorguk.ukuu.org.uk> <20090320103545.GQ5367@pengutronix.de> <20090320105556.4375176d@lxorguk.ukuu.org.uk> <20090320111552.GS5367@pengutronix.de> <49C3B33F.1020905@systec-electronic.com> <20090320153713.65bf8e2d@lxorguk.ukuu.org.uk> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1437 Lines: 40 david@lang.hm schrieb: > On Fri, 20 Mar 2009, Alan Cox wrote: > >>> information of what to copy to where comes from the object dictionary. >>> But it is possible to extract this information from the objdict and pass >>> it via generic structures (e.g. something like IO vectors) to the PDO >>> module in kernel. The information flow of the configuration data is >>> one-way only, from userspace to kernel. This is what I plan to implement >>> in openPOWERLINK, because the copy information can also be passed to a >>> special hardware like a DMA controller. >> >> Ok so your hardware in fact really is oriented around an mmap type >> interface ? > > what I understand from this thread is that the hardware is a standard > ethernet card. It may be a standard Ethernet controller. But it could also be a controller with a special hardware acceleration. cu, Daniel -- SYS TEC electronic GmbH August-Bebel-Str. 29 D-07973 Greiz Telefon : +49 (0) 3661 6279 0 Fax : +49 (0) 3661 6279 99 Email : daniel.krueger@systec-electronic.com Internet : http://www.systec-electronic.com Managing Director : Dipl.-Phys. Siegmar Schmidt Commercial registry : Amtsgericht Jena, HRB 205563 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/