linux-kernel - Re: [Scst-devel] Fwd: Re: linuxcon 2010...

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Message-ID: <4C76CA57.3050405@vlnb.net>
Date:	Fri, 27 Aug 2010 00:11:03 +0400
From:	Vladislav Bolkhovitin <vst@...b.net>
To:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
CC:	James Bottomley <James.Bottomley@...e.de>,
	Dirk Meister <dmeister@...-paderborn.de>,
	linux-scsi@...r.kernel.org, Chetan Loke <chetanloke@...il.com>,
	Chetan Loke <generationgnu@...oo.com>,
	scst-devel <scst-devel@...ts.sourceforge.net>,
	linux-kernel@...r.kernel.org, Mike Christie <michaelc@...wisc.edu>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Subject: Re: [Scst-devel] Fwd: Re: linuxcon 2010...

Nicholas A. Bellinger, on 08/25/2010 01:23 AM wrote:
> As mentioned explictly earlier in this thread, my WIP code for the
> kernel level subsystem backstore using STGT kernel<->  user CDB
> passthrough logic in drivers/target/target_core_stgt.c is a item on
> my TODO list, but I will repeat, is NOT being tagged as a mainline
> .37 item.

Hmm, I can't understand, if target_core_stgt.c is "NOT being tagged as a 
mainline .37 item", then the STGT ABI compatibility for being a drop in 
replacement for STGT isn't a requirement? Or am I missing something?

> Tomo-san, mnc, and other storage folks have been briefed on the
> remaining issues that would be involved to get a prototype
> functioning with drivers/target/target_core_stgt.c, and rough idea of
> what it would take in existing mainline drivers/scsi/scsi_tgt_*.c
> code.  With the current WIP code this will allow the userspace CDB ->
> LUN passthrough to function transparently with all TCM SPC-4
> compliant logic as a standalone struct se_subsystem_api
> tcm_core_stgt.ko backstore.

This is exactly what we are discussing.

Thanks,
Vlad
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