From mboxrd@z Thu Jan 1 00:00:00 1970 From: jbarnes@sgi.com (Jesse Barnes) Date: Fri, 17 Oct 2003 20:33:23 +0000 Subject: Re: [PATCH] fix topology initialization Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org 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