linux-kernel - Re: [PATCH 0/3] Add proper STGT <-> bs

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Date:	Mon, 7 Jun 2010 18:35:21 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	nab@...ux-iscsi.org
Cc:	fujita.tomonori@....ntt.co.jp, stgt@...r.kernel.org,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	michaelc@...wisc.edu, bharrosh@...asas.com,
	James.Bottomley@...e.de, dgilbert@...erlog.com
Subject: Re: [PATCH 0/3] Add proper STGT <-> bs_sg passthrough v3

On Mon, 07 Jun 2010 02:07:09 -0700
"Nicholas A. Bellinger" <nab@...ux-iscsi.org> wrote:

> On Mon, 2010-06-07 at 17:56 +0900, FUJITA Tomonori wrote:
> > On Mon, 07 Jun 2010 01:27:16 -0700
> > "Nicholas A. Bellinger" <nab@...ux-iscsi.org> wrote:
> > 
> > > Ok, I just fixed some minor breakage and applied patch 3 on top of
> > > tgt.git/pass in my local tree and everything appears to work with
> > > '-E bsg -Y pt'.
> > > 
> > > Please let me know if you have any other comments on the BSG bits or if
> > > you would like me to send along a updated patch 3 seperately.
> > 
> > Please send patches except for bsg first.
> > 
> > About bsg support, we need both sg and bsg? Just bsg is not enough?
> 
> I figured you would still like legacy support w/o bsg for the forseeable
> future with older production kernels.  I don't recall which kernel BSG
> support was added or if this code has already been backported to the
> various distro kernels.

I prefer to support only bsg (until someone tells me to support sg).


btw, if you look for a tool to generate a bidi command, my sgv4-tools
might work for you.

git://git.kernel.org/pub/scm/linux/kernel/git/tomo/sgv4-tools.git

try sgv4_xdwriteread (note that it's not useful at all except for
generating bidi).
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