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Re: few questions about linux on sgi machines

To: Christoph Hellwig <hch@lst.de>
Subject: Re: few questions about linux on sgi machines
From: Alex Deucher <agd5f@yahoo.com>
Date: Fri, 23 Apr 2004 06:29:01 -0700 (PDT)
Cc: linux-mips@linux-mips.org
In-reply-to: <20040423131706.GA27375@lst.de>
Original-recipient: rfc822;linux-mips@linux-mips.org
Sender: linux-mips-bounce@linux-mips.org
--- Christoph Hellwig <hch@lst.de> wrote:
> On Thu, Apr 22, 2004 at 10:49:16AM -0700, Alex Deucher wrote:
> > What about the PCI slots on o200?  Are they supported?
> 
> There's is PCI support but there's some problems, mosty because the
> Linux support code isn't as nice as it should and we support only
> glogic fibre channels and scsi cards and the SGI ioc3 currently.
> 
> Fixing that is in-progress but even then you could have problems with
> most standard linux drivers because the pci hardware on all systems
> using the bridge ASIC and it's sucessors (xbridge, pic) violate some
> ordering contraints in the PCI spec.  The SGI folks doing the SN1/SN2
> IA64 port have come up with workaround for xbride and pic but I'm not
> sure they're applicable to IP27.

I assume IP30 has the same problems since they are similarly
architected?  What about IP32?

Thanks,

Alex



        
                
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