RE: iSCSI: aborting an immediate command with ABORT TASK

["Tony Battersby" <tonyb@cybernetics.com>]

I agree.  This sounds like a good solution to me.

Thanks for listening!

Tony

> -----Original Message-----
> From: owner-ips@ece.cmu.edu [mailto:owner-ips@ece.cmu.edu]On Behalf Of
> Eddy Quicksall
> Sent: Thursday, September 05, 2002 5:44 PM
> To: 'Julian Satran'; ips@ece.cmu.edu
> Cc: Black_David@emc.com
> Subject: RE: iSCSI: aborting an immediate command with ABORT TASK
> 
> 
> The two last EMAIL's you sent regarding this work for me.
> 
> Eddy
> 
> -----Original Message-----
> From: Julian Satran [mailto:Julian_Satran@il.ibm.com]
> Sent: Thursday, September 05, 2002 3:05 PM
> To: ips@ece.cmu.edu
> Cc: Black_David@emc.com
> Subject: RE: iSCSI: aborting an immediate command with ABORT TASK
> 
> 
> In addition in order to eliminate the "corner case" I 
> mentioned earlier
> (and that is the only ambiguity we know about) - that a TASK ABORT may
> abort
> both an immediate and a non-immediate that have the same 
> number and are
> both lost even though only the immediate was intended I added 
> the following
> text to 9
> 
>        If an ABORT TASK is issued for a task created by an immediate
>        command then RefCmdSN MUST be that of the Task 
> Management request
>        itself (i.e. CmdSN and RefCmdSN are equal; otherwise 
> RefCmdSN MUST
>        be set to the CmdSN of the task to be aborted (lower 
> than CmdSN).
> 
>  and made 9.5.5 to raed:
> 
>    RefCmdSN
> 
> 
>        If an ABORT TASK is issued for a task created by an immediate
>        command then RefCmdSN MUST be that of the Task 
> Management request
>        itself (i.e. CmdSN and RefCmdSN are equal).
> 
>        For an ABORT TASK of a task created by non-immediate command
>        RefCmdSN MUST be set to the CmdSN of the task identified by the
>        Referenced Task Tag field. Targets must use this field 
> as described
>        in section 9.6.1 when the task identified by the 
> Referenced Task Tag
>        field is not with the target.
> 
>        Otherwise, this field is reserved.
> 
>     Regards,
>     Julo
> 
> ----- Forwarded by Julian Satran/Haifa/IBM on 05/09/02 21:56 -----
>  
> 
>                       Julian Satran
> 
>                                                To:       
> ips@ece.cmu.edu
> 
>                       05/09/02 19:26           cc:
> 
>                                                From:     Julian
> Satran/Haifa/IBM@Haifa/IBM@IBMIL
> 
>                                                Subject:  RE: 
> iSCSI: aborting
> an immediate command with ABORT TASK                               
>  
> 
>  
> 
>  
> 
> 
> 
> 
> Forget the previous text - we wont the clarification to be 
> added for the
> "plugging side" (the target) and the we suggest changing the 
> last bullet b
> in 9.6.1
> to:
> 
>           If the Referenced Task Tag does not identify an 
> existing task,
>           but if the CmdSN indicated by the RefCmdSN field in the Task
>           Management function request is within the valid 
> CmdSN window and
>           less than the CmdSN of the Task Management function request
>           itself, then targets must consider the CmdSN 
> received and return
>           the "Function complete" response.
> 
>  We thought this was obvious from the overview text but it 
> apparently is
>  not.
> 
>  Julo
> 
> The current wording IS CORRECT!
> 
> 
> 
>