Hi,

I do not see how the Application Client is notified of the write DATA frame ACK/NAK_TIMEOUT condition

since Table 130 does NOT include the  Transmission Complete ( Data-Out Failed, ACK/NAK Timeout)

Message received from ST_ITS state machine

Same thing for Write DATA frame NACK_RECEIVED condition since Table 13 does NOT include

Transmission Complete ( Data-Out Failed, NACK Received) Message received from ST_ITS state machine

Either.

Regards,

Larry

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Taken from SAS-1.1 rev 10 page 364

9.2.4.5.3 DATA frame with transport layer retries disabled

If an SSP initiator port transmits a write DATA frame and does not receive an ACK or NAK for that frame (e.g.,

times out, or the connection is broken):

1) the SSP_TF state machine closes the connection with DONE (ACK/NAK TIMEOUT) (see 7.16.8.6.5);

and

2) the application client aborts the command (see 10.2.2).

If an SSP initiator port transmits a write DATA frame and receives a NAK for that frame, the application client

aborts the command (see 10.2.2).

Taken from SAS-1.1 rev 10 page 372

Table 130 — Confirmations sent to the SCSI application layer if a frame transmission or reception

error occurs