From: Scott Murray <scottm@somanetworks.com>
To: linux-hotplug@vger.kernel.org
Subject: Re: cpqphp and IOAPIC
Date: Tue, 22 Jul 2003 14:10:55 +0000 [thread overview]
Message-ID: <marc-linux-hotplug-105888328404671@msgid-missing> (raw)
In-Reply-To: <marc-linux-hotplug-105882858027336@msgid-missing>
On Tue, 22 Jul 2003, Greg KH wrote:
> On Mon, Jul 21, 2003 at 03:55:23PM -0700, Olivier Cremel wrote:
> > It seems that cpqphp only works if the
> > machine is using PIC mode due to
> > the way cpqhp_set_irq() invokes the PCI BIOS.
> >
> > Is it on purpose ? How to use cpqphp
> > on a machine using IOAPIC (SMP namely) ?
>
> Do you have such a machine? What are the errors that happen when you
> try to add a new pci card?
>
> I've been curious at times about some of the irq assignment logic in
> that driver, as it doesn't seem that some of the more complex conditions
> are handled properly, but I haven't seen any failures in testing on the
> hardware I have access to.
I don't know about cpqhp (it's been a while since I looked at it), but
I've had to do some hacking to get interrupt assignment working with
CompactPCI system master boards that have IO-APICs. I'll probably float
a patch out after OLS.
> Oh, and there is a pci hotplug development mailing list, which is
> probably much better place for this topic.
I'm CC'ing it in this reply. Olivier, please prune linux-hotplug-devel
from your replies.
Scott
PS: Greg, if I see you (or maybe Russell and/or Ivan K.) there, I
wouldn't mind a little discussion on what the strategy should
be for bus renumbering, as a lot of the new CPCI boards I'm
seeing are going to need some form of it.
--
Scott Murray
SOMA Networks, Inc.
Toronto, Ontario
e-mail: scottm@somanetworks.com
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prev parent reply other threads:[~2003-07-22 14:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-07-21 22:55 cpqphp and IOAPIC Olivier Cremel
2003-07-22 13:21 ` Greg KH
2003-07-22 14:10 ` Scott Murray [this message]
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