From: jbarnes@sgi.com (Jesse Barnes)
To: linux-ia64@vger.kernel.org
Subject: Re: [PATCH] fix topology initialization
Date: Fri, 17 Oct 2003 20:33:23 +0000 [thread overview]
Message-ID: <marc-linux-ia64-106642289105919@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-106641334730082@msgid-missing>
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
next prev parent reply other threads:[~2003-10-17 20:33 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-17 17:48 [PATCH] fix topology initialization Jesse Barnes
2003-10-17 17:50 ` Jesse Barnes
2003-10-17 18:05 ` Christoph Hellwig
2003-10-17 18:27 ` Jesse Barnes
2003-10-17 18:34 ` Martin K. Petersen
2003-10-17 18:37 ` Christoph Hellwig
2003-10-17 18:51 ` Martin K. Petersen
2003-10-17 19:22 ` Chen, Kenneth W
2003-10-17 20:33 ` Jesse Barnes [this message]
2003-10-20 8:43 ` Jes Sorensen
2003-10-20 15:09 ` Martin K. Petersen
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