Subject: Re: Convenient use of firmload(9)
To: Jason Thorpe <thorpej@shagadelic.org>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: tech-kern
Date: 01/19/2007 09:51:20
On Thu, Jan 18, 2007 at 03:21:35PM -0800, Jason Thorpe wrote:
> 
> On Jan 18, 2007, at 2:58 PM, Arnaud Lacombe wrote:
> 
> >On Thu, Jan 18, 2007 at 02:45:46PM -0800, Jason Thorpe wrote:
> >>>Somehow, some of those network devices can pxeboot a kernel - even
> >>>though
> >>>we need to download a massive file in order to use the device from
> >>>within
> >>>the kernel....
> >>
> >>...because they have a small firmware image in the ROM of the card  
> >>for
> >>that.
> >>
> >Doesn't such card have some "legacy" working mode that would allow  
> >us to
> >mount root from NFS without all their capabilities, and then beening
> >able to use them at "full speed" once the firmware is loaded ?
> 
> I guess that depends on the card, and I suppose it also depends on  
> whether or not some hypothetical "legacy" mode were even documented so  
> a driver could be written.

Not to mention that at last for one of these cards (bnx) we don't
have *any* doc. We have to live with whatever information and firmware
we can find in other open-source drivers.

-- 
Manuel Bouyer, LIP6, Universite Paris VI.           Manuel.Bouyer@lip6.fr
     NetBSD: 26 ans d'experience feront toujours la difference
--