netdev - Re: [bug?] tg3: Failed to load firmware "tigon/tg3

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Message-Id: <1215247803.3189.45.camel@shinybook.infradead.org>
Date:	Sat, 05 Jul 2008 09:50:03 +0100
From:	David Woodhouse <dwmw2@...radead.org>
To:	Takashi Iwai <tiwai@...e.de>
Cc:	Olivier Galibert <galibert@...ox.com>,
	Hannes Reinecke <hare@...e.de>, Theodore Tso <tytso@....edu>,
	Jeff Garzik <jeff@...zik.org>,
	Andi Kleen <andi@...stfloor.org>,
	David Miller <davem@...emloft.net>, hugh@...itas.com,
	akpm@...ux-foundation.org, kosaki.motohiro@...fujitsu.com,
	mchan@...adcom.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, netdev@...r.kernel.org
Subject: Re: [bug?] tg3: Failed to load firmware "tigon/tg3_tso.bin"

On Sat, 2008-07-05 at 09:41 +0200, Takashi Iwai wrote:
> At Sat, 5 Jul 2008 01:13:22 +0200,
> Olivier Galibert wrote:
> > 
> > On Fri, Jul 04, 2008 at 03:42:37PM +0100, David Woodhouse wrote:
> > > It doesn't yet; that patch is in linux-next. The firmware is shipped as
> > > part of the kernel source tree, and you currently need to run 'make
> > > firmware_install' to put it in /lib/firmware, although we're looking at
> > > making that easier because apparently having to run 'make
> > > firmware_install' is too hard...
> > 
> > Won't that break multiple kernel installs on any binary packaging
> > system that cares about file collisions?  Multiple kernel rpms
> > providing the same /lib/firmware files would break things wouldn't
> > they ?
> 
> Yes, it will, if the firmware blobs are packed into the kernel
> package.  In a long term, we can put firmware files into a separate, 
> architecture independent noarch package, though.  This will save the
> total package size, too.

I'm not familiar with the SuSE kernel specfile, but it was a fairly
minor change to the Fedora kernel to do exactly that 'long term' thing.
The patch is in the fedora-kernel-list archives.

We have to do the same thing with exported headers, anyway -- those are
built from the kernel too, but again we need to have only one copy
installed or we'd get conflicts.

> But, right now, it's difficult because the installation and build of
> firmware files depend on the kernel config.  We'd need a make rule for
> installing the all firmware files for that purpose.

That's what 'make firmware_install' does. It's config- and arch-
independent, mostly because it was developed with distributors in mind. 

-- 
dwmw2

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