Questions about SBP-2
PJohansson at aol.com
PJohansson at aol.com
Tue Apr 13 17:17:25 PDT 1999
* From the T10 Reflector (t10 at symbios.com), posted by:
* PJohansson at aol.com
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In a message dated 99-04-13 17:42:58 EDT, chens at ti.com writes:
<<I have several questions about SBP-2 spec. Would you please give me some
detailed explanations for TRANSPORT FAILURE for sbp_status? I think it is
redundant, since it is 1394 stuff. When will it be used?>>
Imagine that the SBP-2 target is unsuccessful in its attempts to store data
in the initiator's memory (e.g., a READ request). The failures of the Serial
Bus block write transactions are, as you say, "1394 stuff". But how does the
target report the overall failure of the ORB (and its encapsulated READ
command) back to the initiator? This is where TRANSPORT FAILURE is to be used.
<<Another question for REQUEST COMPLETE for sbp_status: When will it report
"Function rejected" ? Do we need to check "function" field in the ORB in
order to determine if the function values are valid. When will it report
"Request type not supported"? Do we need to check "rq_fmt" filed in order to
determine if it is valid?>>
Yes
Peter Johansson
Congruent Software, Inc.
98 Colorado Avenue
Berkeley, CA 94707
(510) 527-3926
(510) 527-3856 FAX
pjohansson at aol.com
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