linux-kernel - Re: [PATCH] Intel IXP4xx network drivers v.2

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Message-ID: <20070516071300.GB14222@infradead.org>
Date:	Wed, 16 May 2007 08:13:01 +0100
From:	Christoph Hellwig <hch@...radead.org>
To:	Tomasz Chmielewski <mangoo@...g.org>
Cc:	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk, netdev@...r.kernel.org,
	Michael Jones <mlj28@....ac.uk>,
	Krzysztof Halasa <khc@...waw.pl>
Subject: Re: [PATCH] Intel IXP4xx network drivers v.2 - Ethernet and HSS

On Tue, May 08, 2007 at 10:29:03AM +0200, Tomasz Chmielewski wrote:
> Michael Jones wrote:
> 
> >>+#ifndef __ARMEB__
> >>+#warning Little endian mode not supported
> >>+#endif
> >
> >Personally I'm less fussed about WAN / LE support. Anyone with any  
> >sense will run ixp4xx boards doing such a specialised network  
> >operation as BE. Also, NSLU2-Linux can't test this functionality with  
> >our LE setup as we don't have this hardware on-board. You may just  
> >want to declare a depends on ARMEB in Kconfig (with or without OR  
> >(ARM || BROKEN) ) and have done with it - it's up to you.
> 
> Christian Hohnstaedt's work did support LE though.
> 
> Not all ixp4xx boards are by definition "doing such a specialised 
> network operation".
> 
> 
> Krzysztof, why is LE not supported?
> 
> Do you need access to ixp4xx that starts in LE mode?

Not even trying to support LE is a clear merge blocker.  Maybe Krzysztof
can't actually test it himself, which is fine - but not even pretending
to be endian clean is not what proper Linux drivers do.
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