RE: iSCSI: Use of the A bit

[Paul Koning <ni1d@arrl.net>]

>>>>> "Kevin" == A-Roseville,ex1  <LEMAY> writes:

 Kevin> I also do not like the comment about having to wait until
 Kevin> maxBurstsize byte to set the A-bit.

 Kevin> I wanted to use it as Eddie suggested. To force the initiator
 Kevin> to acknowledge the IO so that I can release resources on the
 Kevin> target.

 Kevin> This will be especially useful for hardware accelerated IOs
 Kevin> where the chip cannot declare the IO complete until it has
 Kevin> been Ack'd.

 Kevin> Could we just change the wording to: ---- For sessions with
 Kevin> ErrorRecoveryLevel 1 or higher the target sets this bit to 1
 Kevin> to indicate that it requests from the initiator a positive
 Kevin> acknowledgement for the data received. The target should use
 Kevin> the A bit moderately; the A-bit MAY only be set to 1 at the
 Kevin> end of a data sequence.

 Kevin> On receiving a Data-In PDU with the A bit set to 1 the
 Kevin> initiator MUST issued a SNACK of type DataACK. If the
 Kevin> initiator has detected holes in the input sequence, it MUST
 Kevin> postpone issuing the SNACK of type ACKN until the holes are
 Kevin> filled.  ---

Sounds right to me.

       paul