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Subject: RE: [RFC/Patch 0/12] ACPI based root bridge hot-add
Date: Mon, 21 Mar 2005 17:06:47 -0800
Message-ID: <468F3FDA28AA87429AD807992E22D07E04A3DDC9@orsmsx408>
Thread-Topic: [RFC/Patch 0/12] ACPI based root bridge hot-add
Thread-Index: AcUuQIGV+3nfat58RryRsFcW1r2mwgAN19BA
From: "Sy, Dely L" <dely.l.sy@intel.com>
To: "Shah, Rajesh" <rajesh.shah@intel.com>, "Greg KH" <gregkh@suse.de>
Cc: <linux-pci@atrey.karlin.mff.cuni.cz>, <linux-kernel@vger.kernel.org>,
       <pcihpd-discuss@lists.sourceforge.net>, <akpm@osdl.org>,
       "Brown, Len" <len.brown@intel.com>, "Luck, Tony" <tony.luck@intel.com>
Sender: linux-kernel-owner@vger.kernel.org
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On Monday, March 21, 2005 10:05 AM, Rajesh Shah wrote:
> On Fri, Mar 18, 2005 at 09:13:32PM -0800, Greg KH wrote:
> > 	- Does this break the i386 acpiphp functionality?

> Dely Sy had tested hotplug with an earlier version of my patches
> (with minor differences from the current series) on i386 and it
> worked fine. She probably hasn't tested the latest one. Dely,
> could you check that please? 

I tested an earlier version of this patch on my i386 system with
PCI Express hot-plug slots.  The i386 acpiphp functionality worked
fine - i.e. I was able to do hot-plug of single- & multi-function 
cards.  

I'll check this new patch on my system.

> > 	- Have you tested other pci hotplug systems with this patch
> > 	  series?  Like pci express hotplug, standard pci hotplug,
> > 	  cardbus, etc?

> No, because I the one system I have access to isn't doing any
> hot-plug. I'm working on fixing that but was also hoping to hear
> from others who surely have access to more machines than I do.

PCI Express hot-plug has been tried (see above).  The original 
acpiphp driver won't detect hot-pluggable slots that locate on the
p2p bridge (PCI Express to PCI/PCI-X bridge) behind another p2p 
bridge (root port).  Therefore, the acpiphp can't be used for
standard PCI hot-plug in my system.

Thanks,
Dely
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