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From: Stefan Richter <stefanr@s5r6.in-berlin.de>
To: linux1394-devel@lists.sourceforge.net
Cc: Harvey Harrison <harvey.harrison@gmail.com>,
	Sam Ravnborg <sam@ravnborg.org>,
	linux-kernel@vger.kernel.org, sparclinux@vger.kernel.org,
	linuxppc-dev@ozlabs.org, Kristian Hoegsberg <krh@bitplanet.net>,
	Jarod Wilson <jwilson@redhat.com>
Subject: Re: [PATCH 1/2] firewire: endianess fix
Date: Sat, 1 Mar 2008 13:36:05 +0100 (CET)	[thread overview]
Message-ID: <tkrat.8be5d3017a57e1f0@s5r6.in-berlin.de> (raw)
In-Reply-To: <47C00DB0.20605@s5r6.in-berlin.de>

On 23 Feb, I wrote:
>> This needs to be tested on different big endian PCs, if possible with
>> the Apple Uninorth FireWire controller and other types of controllers.

I tested it myself now with VT6306 on PPC32.

> it should be triggered by replacing
> 	&fw_high_memory_region
> by
> 	&fw_private_region
> in drivers/firewire/fw-sbp2.c and testing with any SBP-2 device

This indeed demonstrates the fix.  Any IO to SBP-2 devices fails with
timeouts.  Just removing the posted write enable bit in fw-ohci wasn't
sufficient to catch it though.  Maybe the controller has write posting
enabled by default.

However, this endianess bug was low-profile because there are currently
no kernelspace or userspace drivers for the firewire stack which need to
respond in split transactions.
-- 
Stefan Richter
-=====-==--- --== ----=
http://arcgraph.de/sr/


  reply	other threads:[~2008-03-01 12:38 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-20 22:03 sparse - make __CHECK_ENDIAN__ default enabled? Sam Ravnborg
2008-02-20 22:18 ` Harvey Harrison
2008-02-23 11:23   ` [PATCH 0/2] firewire: endinaness warnings (was Re: sparse - make __CHECK_ENDIAN__ default enabled?) Stefan Richter
2008-02-23 11:24     ` [PATCH 1/2] firewire: endianess fix Stefan Richter
2008-02-23 11:36       ` Stefan Richter
2008-02-23 12:12       ` Stefan Richter
2008-03-01 12:36         ` Stefan Richter [this message]
2008-02-27 19:58       ` Jarod Wilson
2008-02-27 20:08         ` Stefan Richter
2008-02-27 20:21           ` Jarod Wilson
2008-02-28  2:40         ` Benjamin Herrenschmidt
2008-02-28  3:21           ` Jarod Wilson
2008-02-28  6:25             ` Benjamin Herrenschmidt
2008-02-28 18:42               ` Jarod Wilson
2008-02-28 23:26                 ` Benjamin Herrenschmidt
2008-02-29  5:48                   ` Jarod Wilson
2008-02-29  6:00                     ` Benjamin Herrenschmidt
2008-02-29 11:26                     ` Paul Mackerras
2008-02-29 11:52                       ` Stefan Richter
2008-02-29 21:49                         ` Benjamin Herrenschmidt
2008-02-29 15:34                       ` Jarod Wilson
2008-03-03  9:19                     ` Gabriel Paubert
2008-03-03 14:35                       ` Stefan Richter
2008-03-05 22:59                         ` Gabriel Paubert
2008-03-05 23:26                           ` Stefan Richter
2008-03-06 20:23                             ` Gabriel Paubert
2008-02-28  3:33         ` Jarod Wilson
2008-02-28  2:41       ` Benjamin Herrenschmidt
2008-02-28  8:41         ` Stefan Richter
2008-02-23 11:24     ` [PATCH 2/2] firewire: endianess annotations Stefan Richter
2008-03-01  5:23     ` [PATCH 0/2] firewire: endinaness warnings (was Re: sparse - make __CHECK_ENDIAN__ default enabled?) Jarod Wilson
2008-02-20 22:39 ` sparse - make __CHECK_ENDIAN__ default enabled? Harvey Harrison
2008-02-20 22:51   ` Sam Ravnborg

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