[stgt] Read10 question about EDTL

[ronnie sahlberg]

List,

Assume we have a SBC device and an initiator sends a
READ10 with a TRANSFER LENGTH of 2 blocks,   or 1024 bytes of data.

Assume this is sent in a iSCSI pdu that has set
ExpectedDataTransferLength of 512.

What should the target do here?


My thinking is that this is not an error, so the target should return
SCSI_STATUS_GOOD.
However, we only provided a read buffer of 512 bytes so an overflow of
another 512 bytes occured.

So the target should respond with SCSI_STATUS_GOOD,
send a single DATA-IN PDU containing the first 512 bytes of data and
then also set the
O flag to signal overflow and set the residual count to 512.

Does that sound right to the resident SCSI experts ?
(At least one target returns a check condition for this)



Regards
Ronnie Sahlberg
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