From owner-freebsd-arch@FreeBSD.ORG Wed Sep 1 00:09:33 2004 Return-Path: Delivered-To: freebsd-arch@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6186816A4CE; Wed, 1 Sep 2004 00:09:33 +0000 (GMT) Received: from daintree.corp.yahoo.com (daintree.corp.yahoo.com [216.145.52.172]) by mx1.FreeBSD.org (Postfix) with ESMTP id 51BB943D53; Wed, 1 Sep 2004 00:09:33 +0000 (GMT) (envelope-from peter@yahoo-inc.com) Received: by daintree.corp.yahoo.com (Postfix, from userid 2154) id 376D58803; Tue, 31 Aug 2004 17:09:33 -0700 (PDT) From: Peter Wemm To: freebsd-arch@freebsd.org Date: Tue, 31 Aug 2004 17:09:32 -0700 User-Agent: KMail/1.6.2 References: <20040831203929.GB25134@odin.ac.hmc.edu> <4134FB98.6A3822BC@freebsd.org> In-Reply-To: <4134FB98.6A3822BC@freebsd.org> MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200408311709.32927.peter@wemm.org> cc: Scott Long cc: Sam cc: Andre Oppermann Subject: Re: option directive and turning on AOE X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 01 Sep 2004 00:09:33 -0000 On Tuesday 31 August 2004 03:28 pm, Andre Oppermann wrote: > Brooks Davis wrote: > > On Tue, Aug 31, 2004 at 02:27:33PM -0600, Scott Long wrote: > > > Sam wrote: > > > >I've added code to if_ethersubr.c:/ether_demux/ > > > >to queue up AoE frames as they appear. I followed > > > >suit with other protocols and included my addition > > > >inside of an #ifdef AOE. Where do I turn this on? > > > >I thought perhaps just adding an 'option AOE' to > > > >the config would do it, but it doesn't -- so clearly > > > >I don't understand how the option directive works. > > > >The config man page doesn't talk about option/device > > > >directives ... > > > > > > > >I'm still looking, but a clue would be well received. > > > > > > Did you modify /sys/conf/options to tell it about your > > > AOE option? If so, then you should have specified the name > > > of a header file that the option would be #define'd into. > > > Include that header file in if_ethersubr.c and you should > > > have no problems. > > > > > > Incidentally, this might be an area when netgraph would be > > > useful. Instead of having an AoE specific hook in the > > > stack, you could have an AoE netgraph module that uses the > > > existing netgraph hooks. It's just an idea, though. > > > > Another option might be a PFIL hook. There isn't one there now, > > but I think I've seen talk of adding one. Actually, if we did > > that, we could get most of the netgraph specific hooks out of the > > ethernet code. > > What is AoE? And what kind of Frames does it come in? ATA-over-Ethernet? http://news.gw.com/freebsd.arch/12939 (Ethernet frame type 0x88a2 apparently) -- Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com "All of this is for nothing if we don't go to the stars" - JMS/B5