linux-kernel - [RFC][PATCH 00/13] firewire-sbp-target: FireWire SBP-2 SCSI target

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Message-Id: <1328989452-20921-1-git-send-email-bootc@bootc.net>
Date:	Sat, 11 Feb 2012 19:43:59 +0000
From:	Chris Boot <bootc@...tc.net>
To:	linux1394-devel@...ts.sourceforge.net, target-devel@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, agrover@...hat.com,
	clemens@...isch.de, nab@...ux-iscsi.org, stefanr@...6.in-berlin.de
Subject: [RFC][PATCH 00/13] firewire-sbp-target: FireWire SBP-2 SCSI target

Hi folks,

Well after lots of work I have a working and generally (at least I think)
sensible starting point for the FireWire target. It appears to work fine in all
the configurations I've tested it against, including Linux and Mac OS X
initiators.

This is not production ready code, and not ready for merging IMO. I know my
locking (or more the lack of it) leaves something to be desired, and I know my
use of atomics and memory barriers is wrong too. Performance is also a bit
meagre and I'm sure it can be improved substantially - I already have some
ideas for things that can be improved.

For testing, I use:

GUID=5254000b8f01e6f6
DIR_ID=abcdef

modprobe firewire-sbp-target
mkdir /sys/kernel/config/target/sbp
mkdir /sys/kernel/config/target/sbp/$GUID
mkdir /sys/kernel/config/target/sbp/$GUID/tpgt_1
mkdir /sys/kernel/config/target/sbp/$GUID/tpgt_1/lun/lun_0
ln -s /sys/kernel/config/target/core/iblock_0/sbptest /sys/kernel/config/target/sbp/$GUID/tpgt_1/lun/lun_0/sbptest
echo $DIR_ID > /sys/kernel/config/target/sbp/$GUID/tpgt_1/directory_id
echo 1 > /sys/kernel/config/target/sbp/$GUID/tpgt_1/enable

Setting the directory_id is optional and something I have only just added, but
it appears to work as planned.

Any and all comments much appreciated.

Thanks,
Chris

-- 
Chris Boot
bootc@...tc.net

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