linux-kernel - Re: [PATCH 06/13] firewire-sbp-target: Add sbp

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Message-ID: <20120213205332.09bc683f@stein>
Date:	Mon, 13 Feb 2012 20:53:32 +0100
From:	Stefan Richter <stefanr@...6.in-berlin.de>
To:	Chris Boot <bootc@...tc.net>
Cc:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>,
	linux1394-devel@...ts.sourceforge.net,
	target-devel@...r.kernel.org, linux-kernel@...r.kernel.org,
	agrover@...hat.com, clemens@...isch.de
Subject: Re: [PATCH 06/13] firewire-sbp-target: Add sbp_fabric.{c,h}

On Feb 13 Chris Boot wrote:
> I'd like to support ABORT_TASK and friends at some point. The problem
> I see here though is that tags in SBP-2/3 are 48-bits wide (the ORB
> address in the initiator node's memory), and the target framework seems
> to use a u32 for this. SAM-3 Section 4.11 seems to say "A task tag is a
> value that is composed of up to 64 bits" so it might be worth getting
> that changed in the target framework?

In practice, its is quite likely that only 32 bit wide SBP tags are being
used.  But there is no way to guarantee this.
-- 
Stefan Richter
-=====-===-- --=- -==-=
http://arcgraph.de/sr/
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