From: Chip Coldwell <coldwell@redhat.com>
Date: Mon, 16 Feb 2009 12:11:56 +0000 (+0100)
Subject: cciss: PCI power management reset for kexec
X-Git-Tag: v2.6.29-rc6~40^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82eb03cfd862a65363fa2826de0dbd5474cfe5e2;p=pandora-kernel.git

cciss: PCI power management reset for kexec

The kexec kernel resets the CCISS hardware in three steps:

1. Use PCI power management states to reset the controller in the
   kexec kernel.

2. Clear the MSI/MSI-X bits in PCI configuration space so that MSI
   initialization in the kexec kernel doesn't fail.

3. Use the CCISS "No-op" message to determine when the controller
   firmware has recovered from the PCI PM reset.

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Mike Miller <mike.miller@hp.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

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