linux-kernel - Re: Q: state of pci express hotplug

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Date:	Sat, 31 Jan 2009 19:13:00 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	linux-pci@...r.kernel.org, jbarnes@...tuousgeek.org,
	Alex Chiang <achiang@...com>, djwong@...ibm.com,
	Trent Piepho <xyzzy@...akeasy.org>,
	linux-kernel@...r.kernel.org
Subject: Re: Q: state of pci express hotplug

Hi Eric,

On Saturday 31 January 2009, Eric W. Biederman wrote:
> 
> Trying to use the current pciehp code, on real hardware in an 
> interesting topology (more later) I'm not finding it very satisfactory
> at all.  I am up to at least three show stopper bugs and the code
> is not doing what I really need it to do, so I am looking at a significant
> rewrite patch effort to make this code usable.
> 
> Am I unique in thinking there is a lot that needs to be done?
> Is there current work in progress to make the pci hotplug work better?
> 
> I would like to avoid duplicate work if I can.

I've recently send some fixes against the PCIe port driver which is used by
PCIe hotplug.  In particular, there's a fix that should make the thing work
with MSI-X.

Are your fixes specific to the hotplug driver or do they also affect the PCIe
port driver?

Rafael
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