From: Theodore Tso <tytso@mit.edu>
To: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Cc: Mark Lord <lkml@rtr.ca>,
pcihpd-discuss@lists.sourceforge.net,
Linux Kernel <linux-kernel@vger.kernel.org>
Subject: Re: PCIe Hotplug: NFG unless I boot with card already inserted.
Date: Tue, 16 Oct 2007 18:33:42 -0400 [thread overview]
Message-ID: <20071016223342.GE1314@closure.lan> (raw)
In-Reply-To: <20071016140116.cb30483c.kristen.c.accardi@intel.com>
On Tue, Oct 16, 2007 at 02:01:16PM -0700, Kristen Carlson Accardi wrote:
> >
> > I believe the code is leaning too heavily on the BIOS for stuff,
> > and like lots of other parts of the kernel we'll need an alternate
> > strategy for when things aren't "perfect".
>
> the pitfall for forcing pciehp when the BIOS hasn't provided OSC is that
> you don't know for sure that you really have gained control of hot plug
> operation properly. You can obviously try it, using the provide forcing
> option as you have done, but the behavior is not predictable.
The bigger concern is whether this likely to break things on systems
that *do* correctly implement ACPI support for PCIe hotplug?
- Ted
next prev parent reply other threads:[~2007-10-16 22:33 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-16 13:46 PCIe Hotplug: NFG unless I boot with card already inserted Mark Lord
2007-10-16 15:21 ` Mark Lord
2007-10-16 15:46 ` Kristen Carlson Accardi
2007-10-16 18:39 ` Mark Lord
2007-10-16 18:43 ` Kristen Carlson Accardi
2007-10-16 18:57 ` Mark Lord
2007-10-16 18:59 ` Mark Lord
2007-10-16 19:31 ` Mark Lord
2007-10-16 19:51 ` Kristen Carlson Accardi
2007-10-16 20:07 ` Kristen Carlson Accardi
2007-10-16 20:39 ` Mark Lord
2007-10-16 21:01 ` Kristen Carlson Accardi
2007-10-16 22:33 ` Theodore Tso [this message]
2007-10-16 21:41 ` [Pcihpd-discuss] " Greg KH
2007-10-16 21:57 ` [PATCH] Fix PCIe hotplug for Dell notebook ExpressCard slots Mark Lord
2007-10-16 22:03 ` Greg KH
2007-10-16 22:19 ` Mark Lord
2007-10-16 22:41 ` [Pcihpd-discuss] " Kristen Carlson Accardi
2007-10-16 22:04 ` Kristen Carlson Accardi
2007-10-16 22:17 ` Mark Lord
2007-10-17 1:53 ` [PATCH 0/4] Fix PCIe hotplug for non-ACPI ExpressCard slots (version 2) Mark Lord
2007-10-17 1:54 ` [PATCH 1/4] " Mark Lord
2007-10-17 1:54 ` [PATCH 2/4] " Mark Lord
2007-10-17 1:55 ` [PATCH 3/4] " Mark Lord
2007-10-17 1:55 ` [PATCH 4/4] " Mark Lord
2007-10-18 0:01 ` Kristen Carlson Accardi
2007-10-18 2:28 ` Mark Lord
2007-10-17 3:31 ` [Pcihpd-discuss] [PATCH 2/4] " Matthew Wilcox
2007-10-17 23:54 ` Kristen Carlson Accardi
2007-10-18 2:25 ` Mark Lord
2007-10-17 3:29 ` [Pcihpd-discuss] [PATCH 1/4] " Matthew Wilcox
2007-10-17 13:09 ` Mark Lord
2007-10-17 14:02 ` Matthew Wilcox
2007-10-17 14:33 ` Mark Lord
2007-10-17 22:02 ` [PATCH 0/4] " Andrew Morton
2007-10-17 22:59 ` Mark Lord
2007-10-17 23:25 ` Andrew Morton
2007-10-16 20:29 ` PCIe Hotplug: NFG unless I boot with card already inserted Kristen Carlson Accardi
2007-10-16 20:41 ` Mark Lord
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