Error in SPL-r04 MT_IP (transport Layer for SMP initiator port) State Machine?
George.Penokie at lsi.com
Mon Dec 7 08:29:49 PST 2009
Formatted message: <a href="http://www.t10.org/cgi-bin/ac.pl?t=r&f=r0912070_f.htm">HTML-formatted message</a>
On investigation it was discovered that in proposal 05-305r0 the
following was deleted:
If the SMP Frame Receive Timeout timer expires before a Received SMP
Function Complete confirmation is received, this state shall send an SMP
Frame Receive Timeout confirmation to the management application layer and
send an SMP Transmit Break request to the port layer.
This is the only reference to the SMP Frame Receive Timeout
confirmation and as a result of the above deleted statements the
MT_IP3:Receive state in the MT_IP state machine figure should have also been
As a result the SMP Frame Receive Timeout confirmation has been
deleted from the MT_IP state machine figure.
Bye for now,
3033 41st St. NW
Rochester, MN 55901
george.penokie at lsi.com
From: owner-t10 at t10.org [mailto:owner-t10 at t10.org] On Behalf Of Alan Westbury
Sent: Saturday, November 14, 2009 5:46 AM
To: t10 at t10.org
Subject: Error in SPL-r04 MT_IP (transport Layer for SMP initiator port)
SPL Figure 146 shows message "SMP Frame Receive Timeout" in state
This message is not covered by the clause describing this state
Looking back at SAS 1.1, there used to be a vendor specific "SMP Frame
Receive Timeout timer". On expiry of this timer, MT_IP informed the
management application, and sent a Break request to the Port Layer. This
would appear to account for the message shown in Fig 146.
In SAS 2 / SPL the timing requirement has shifted to the MT_TP state machine,
but it's now unclear what the MT_IP response should be in the event of a
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