Message-ID: <43F9E70C.5030809@s5r6.in-berlin.de>
Date: Mon, 20 Feb 2006 16:58:04 +0100
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
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To: Subodh Shrivastava <subodh.shrivastava@gmail.com>,
       linux1394-devel@lists.sourceforge.net
CC: linux-kernel@vger.kernel.org, bcollins@debian.org, scjody@modernduck.com
Subject: Re: ieee1394 failed to work after S3 resume.
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Subodh Shrivastava wrote:
> Suspend to Ram works fine here with 2.6.16-rc3 kernel except ieee1394
> fails to resume properly.
...
[SCSI command timeout in sbp2 after resume; no nodemgr updates after resume]
...

AFAICT the reason is that the host adapter drivers (1394 low-level 
drivers) ohci1394 and pcilynx lack proper .suspend and .resume hooks. 
Such functionality seems only be present for Powermacs with Uninorth 
chipset.

OHCI 1.1 table A-11 says (surprise!) that host adapters loose PCI 
configuration and 1394 configuration when going into D3 state. We don't 
backup and restore it yet. I could perhaps look into it in late spring 
or summer.
-- 
Stefan Richter
-=====-=-==- --=- =-=--
http://arcgraph.de/sr/
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