iSCSI: how much "Desired Data Transfer Length" in R2T

["John Hufferd" <hufferd@us.ibm.com>]

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John L. Hufferd
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"Subrahmanya Sastry K.V" <skotra@npd.hcltech.com>@ece.cmu.edu on 10/22/2001
03:32:19 AM

Sent by:  owner-ips@ece.cmu.edu


To:   Nitin Dhingra <nitin.dhingra@dcmtech.co.in>
cc:   ips@ece.cmu.edu
Subject:  Re: how much "Desired Data Transfer Length" in R2T




Nitin,

I think  the "Desired Data Tranfer Length" field of R2T PDU  should be
equal to
the DataPDULength
value that the initiator has sent to the target during text parameter
negotiation. Since the DataPDULength
can be different in the two directions, the initiator sends this value to
the
target as DataPDULength=<value>.
So the initiator only  sends/receives a PDU having length less than or
equal
to  the negotiated DataPDULength
(non-zero).

Any comments are welcome..

Sastry


Nitin Dhingra wrote:

> How is the target going to decide how much "desired data transfer length"
he
> has
> to fill apart from the negotiated "DataPDULength".
>
> Thanks in advance,
> nitin