linux-kernel - Re: PCIe Hotplug: NFG unless I boot with card already inserted.

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Message-Id: <20071016132941.69d9050f.kristen.c.accardi@intel.com>
Date:	Tue, 16 Oct 2007 13:29:41 -0700
From:	Kristen Carlson Accardi <kristen.c.accardi@...el.com>
To:	Mark Lord <lkml@....ca>
Cc:	pcihpd-discuss@...ts.sourceforge.net,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: PCIe Hotplug:  NFG unless I boot with card already inserted.

On Tue, 16 Oct 2007 14:39:33 -0400
Mark Lord <lkml@....ca> wrote:

> Another thing:  if a card is already in the slot before pciehp is loaded
> (under any circumstances), then pciehp does *not* see the card until I
> unplug/replug it.

One other thing to note here, the proper operation of hot plug dictates that
if you boot your laptop with no adapter in the slot, you must first load
the driver in order for the new adapter interrupt to be captured.  So,
if you insert a card without the driver loaded, it will not be enumerated
by PCI until you remove it and the reinsert it.
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