RE: iSCSI-06 SCSI Cmd typo

[julian_satran@il.ibm.com]

Chuck - here it is:
1.1  SCSI Command

   Byte /    0       |       1       |       2       |       3       |
      /              |               |               |               |
     |7 6 5 4 3 2 1 0|7 6 5 4 3 2 1 0|7 6 5 4 3 2 1 0|7 6 5 4 3 2 1 0|
     +---------------+---------------+---------------+---------------+
    0|X|I| 0x01      |F|R|W|0 0|ATTR | Reserved      | CRN or Rsvd   |
     +---------------+---------------+---------------+---------------+
    4|TotalAHSLength | DataSegmentLength                             |
     +---------------+---------------+---------------+---------------+
    8| Logical Unit Number (LUN)                                     |
     +                                                               +
   12|                                                               |
     +---------------+---------------+---------------+---------------+
   16| Initiator Task Tag                                            |
     +---------------+---------------+---------------+---------------+
   20| Expected Data Transfer Length                                 |
     +---------------+---------------+---------------+---------------+
   24| CmdSN                                                         |
     +---------------+---------------+---------------+---------------+
   28| ExpStatSN or ExpDataSN                                        |
     +---------------+---------------+---------------+---------------+
   32/ SCSI Command Descriptor Block (CDB)                           /
    +/                                                               /
     +---------------+---------------+---------------+---------------+
   48| Digests if any...                                             |
     +---------------+---------------+---------------+---------------+
     / DataSegment - Command Data (optional)                         /
    +/                                                               /
     +---------------+---------------+---------------+---------------+




Chuck Micalizzi <chuck.micalizzi@qlogic.com> on 26/04/2001 20:57:55

Please respond to Chuck Micalizzi <chuck.micalizzi@qlogic.com>

To:   Julian Satran/Haifa/IBM@IBMIL
cc:   ips@ece.cmu.edu
Subject:  RE: iSCSI-06 SCSI Cmd typo




Julian,

     I'm confused as to what field was removed in order to make
     the CDB field 16 bytes and locate the CmdSN at offset 24.
     Can you send the correct layout of the SCSI Command PDU
     when you get time?

Thank You

chuck micalizzi

-----Original Message-----
From: julian_satran@il.ibm.com [mailto:julian_satran@il.ibm.com]
Sent: Tuesday, April 24, 2001 2:18 AM
To: dfsmith@almaden.ibm.com
Cc: ips@ece.cmu.edu
Subject: Re: iSCSI-06 SCSI Cmd typo




Thanks Daniel,

It's fixed. CmdSN is at 24 and  the following are shifted.

Julo

Daniel Smith <dfsmith@almaden.ibm.com> on 24/04/2001 03:16:31

Please respond to Daniel Smith <dfsmith@almaden.ibm.com>

To:   Julian Satran/Haifa/IBM@IBMIL
cc:
Subject:  iSCSI-06 SCSI Cmd typo




In section 2.3 SCSI Command...

the table shows bytes 36--47 reserved for the CDB (12 bytes).
But
the description 2.3.6 says it's 16 bytes.

(I'd prefer 16 bytes---I'm not a big fan of Stat/DataSN.)

This document is getting big---but the latest version seems to be holding
up
well as I read through it.  Good work.

Daniel
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