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Date:      Tue, 31 Aug 2004 17:09:32 -0700
From:      Peter Wemm <peter@wemm.org>
To:        freebsd-arch@freebsd.org
Cc:        Andre Oppermann <andre@freebsd.org>
Subject:   Re: option directive and turning on AOE
Message-ID:  <200408311709.32927.peter@wemm.org>
In-Reply-To: <4134FB98.6A3822BC@freebsd.org>
References:  <Pine.LNX.4.60.0408311611550.7530@athena> <20040831203929.GB25134@odin.ac.hmc.edu> <4134FB98.6A3822BC@freebsd.org>

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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



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