Re: [PATCH] fix topology initialization

From: Jesse Barnes <jbarnes_at_sgi.com>
Date: 2003-10-18 06:33:23
On Fri, Oct 17, 2003 at 07:37:20PM +0100, Christoph Hellwig wrote:
> > I think this will provide some of the info that hwgfs provides, but not
> > all.  We still need a way to map PCI busses to nodes (or cpumasks,
> > whatever makes sense)
> 
> We should have this in the topology API already in a generic fashion.  Do you
> need it in userland aswell?

Yeah, it might be useful for a userland irq balancer for example.

> > and a way to map nodes & busses to physical, rack mounted bricks.
> 
> Well, that's a SN-specific thing.  But it could be implemented similar to the
> current toplogy API.  What do you actually need this for?

Well, I'm not sure that it should be in the kernel at all.  Maybe it
could just be a SAL call or something with a thin driver wrapper for a
userspace program to use.  It's mainly useful for physically locating
things, e.g.  'the PCI slot on this brick on this rack is dead'.

Jesse
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Received on Fri Oct 17 16:34:51 2003

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