linux-kernel - Re: [PATCH 1/4] [Linux/SCSI] Add support for SPC-4 CDBs referenced in Persisent Reservations Allowed/Confict Table

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Date:	Mon, 26 Jan 2009 01:13:09 -0800
From:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To:	James Bottomley <James.Bottomley@...senPartnership.com>
Cc:	"Linux-iSCSI.org Target Dev" 
	<linux-iscsi-target-dev@...glegroups.com>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	Matthew Wilcox <willy@...ian.org>,
	"Martin K. Petersen" <martin.petersen@...cle.com>
Subject: Re: [PATCH 1/4] [Linux/SCSI] Add support for SPC-4 CDBs referenced
	in Persisent Reservations Allowed/Confict Table

On Sun, 2009-01-25 at 15:06 -0600, James Bottomley wrote:
> On Thu, 2009-01-22 at 00:23 -0800, Nicholas A. Bellinger wrote:
> > >From c177bb7ba55227d809d85aca3a9d4281e554f718 Mon Sep 17 00:00:00 2001
> > From: Nicholas Bellinger <nab@...ux-iscsi.org>
> > Date: Wed, 21 Jan 2009 22:13:00 -0800
> > Subject: [PATCH 1/4] [Linux/SCSI] Add support for SPC-4 CDBs referenced in Persisent Reservations Allowed/Confict Table
> > 
> > This path adds support for a handful of SPC-4 CDBs, and fills out the MI_* and MO_* prefixed
> > service action codes for MAINTENANCE_IN and MAINTENANCE_OUT operations.
> > 
> > This information is from spc4r17 and Table D.4 for MI_ and MO_ prefixed defs.
> > 
> > Signed-off-by: Nicholas A. Bellinger <nab@...ux-iscsi.org>
> 
> These additions look reasonable, there are just a few semantic problems:
> 
> >  include/scsi/scsi.h |   22 ++++++++++++++++++++++
> >  1 files changed, 22 insertions(+), 0 deletions(-)
> > 
> > diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
> > index a109165..93af6ce 100644
> > --- a/include/scsi/scsi.h
> > +++ b/include/scsi/scsi.h
> > @@ -104,30 +104,52 @@
> >  #define PERSISTENT_RESERVE_IN 0x5e
> >  #define PERSISTENT_RESERVE_OUT 0x5f
> >  #define VARIABLE_LENGTH_CMD   0x7f
> > +#define RECEIVE_CREDENTIAL    0x7f // spc4r17 section 6.9 Table 204
> 
> Actually 0x7f isn't receive credentials, that's VARIABLE_LENGTH_CMD
> (definition above) with a Service Action of 0x1800 ... it needs to be
> done something like READ CAPACITY(16) is
> 

Ugh, this is what I thought..  I will fix and repost with complete
SAI_* defines..

Many thanks for your most valuable of time,

--nab

> >  #define REPORT_LUNS           0xa0
> > +#define SECURITY_PROTOCOL_IN  0xa2
> >  #define MAINTENANCE_IN        0xa3
> >  #define MAINTENANCE_OUT       0xa4
> >  #define MOVE_MEDIUM           0xa5
> >  #define EXCHANGE_MEDIUM       0xa6
> >  #define READ_12               0xa8
> >  #define WRITE_12              0xaa
> > +#define READ_MEDIA_SERIAL_NUMBER 0xab
> >  #define WRITE_VERIFY_12       0xae
> >  #define SEARCH_HIGH_12        0xb0
> >  #define SEARCH_EQUAL_12       0xb1
> >  #define SEARCH_LOW_12         0xb2
> > +#define SECURITY_PROTOCOL_OUT 0xb5
> >  #define READ_ELEMENT_STATUS   0xb8
> >  #define SEND_VOLUME_TAG       0xb6
> >  #define WRITE_LONG_2          0xea
> > +#define EXTENDED_COPY         0x83
> > +#define RECEIVE_COPY_RESULTS  0x84
> > +#define ACCESS_CONTROL_IN     0x86
> > +#define ACCESS_CONTROL_OUT    0x87
> >  #define READ_16               0x88
> >  #define WRITE_16              0x8a
> > +#define READ_ATTRIBUTE        0x8c
> > +#define WRITE_ATTRIBUTE	      0x8d
> >  #define VERIFY_16	      0x8f
> >  #define SERVICE_ACTION_IN     0x9e
> >  /* values for service action in */
> >  #define	SAI_READ_CAPACITY_16  0x10
> 
> Here ^^^^^
> 
> James
> 
> 
> --
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