linux-kernel - Re: [PATCH 5/6] firewire: SBP-2 highlevel driver

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Date:	Wed, 09 May 2007 23:48:08 +0200
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Kristian Høgsberg <krh@...hat.com>
CC:	Christoph Hellwig <hch@...radead.org>,
	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux1394-devel <linux1394-devel@...ts.sourceforge.net>
Subject: Re: [PATCH 5/6] firewire: SBP-2 highlevel driver

Kristian Høgsberg wrote:
> Isn't max_sectors the overall size limit of the request, though?

BTW, mainline sbp2 sets max_sectors=512 per default because one 1st
generation bridge needed it.  fw-sbp2 lets the SCSI stack chose the
default max_sectors, which is SCSI_DEFAULT_MAX_SECTORS i.e. 1024.
I think that should be fine with practically all SBP-2 bridges in
use today, but max_sectors > 512 was never widely tested.
-- 
Stefan Richter
-=====-=-=== -=-= -=--=
http://arcgraph.de/sr/
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