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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] iSCSI: ExpStatRNJulian, I am confused by section 2.3.4 where it says "Command responses up to ExpStatRN-1 (mod 2**32) have been received (acknowledges status) on the connection." First of all, can't a target execute the commands in a different order from the order in which the commands were received? If so, then won't the StatSN coming back NOT be in sequential order? The initiator needs to scoreboard responses from the target, and a single cumulative acknowledgement counter won't do the job. Who chooses the StatSN value for each response? Section 2.4.7 says the target generates this value on a per-connection basis. But the name "ExpStatSN", which is sent by the initiator, implies that the initiator generates this value. If the initiator generates this value, then how can multiple commands be in flight if the value ExpStatSN-1 has already been received by the initiator? If the target generates this value, then "ExpStatSN" is an inapproporiate and misleading name for this field. It implies that the StatSN for the corresponding response should be the same as the ExpStatSN generated by the initiator for the original outgoing command. Josh
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