Message-ID: <440D9F8E.7050402@s5r6.in-berlin.de>
Date: Tue, 07 Mar 2006 15:58:22 +0100
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
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To: dougg@torque.net
CC: Bodo Eggert <7eggert@gmx.de>, linux-scsi@vger.kernel.org,
       linux-kernel@vger.kernel.org
Subject: Re: RFC: Move SG_GET_SCSI_ID from sg to scsi
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Douglas Gilbert wrote:
> In linux there is also a move away from the host_number,
> channel_number, target_identifier and LUN tuple used
> traditionally by many Unix SCSI subsystems (most do not
> have the second component: channel_number). At least the
> LUN is not controversial (as long as it is 8 byte!). The
> target_identifier is actually transport dependent (but
> could just be a simple enumeration). The host_number is
> typically an enumeration over PCI addresses but some
> other type of computer buses (e.g. microchannel) could be
> involved.

For some transports, not only the channel but also the Scsi_Host is 
meaningless. Such transports deal only with targets and logical units. 
This includes all multi-protocol + multi-bus or network infrastructures 
such as iSCSI, USB, IEEE 1394.
-- 
Stefan Richter
-=====-=-==- --== --===
http://arcgraph.de/sr/
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