Download microcode proposals
bill.martin at ssi.samsung.com
Tue Jun 24 14:06:02 PDT 2014
Formatted message: <a href="http://www.t10.org/cgi-bin/ac.pl?t=r&f=r1406240_f.htm">HTML-formatted message</a>
There were a number of comments on 14-121r1 and 14-150r0. This email attempts
to summarize the responses and is an attempt to gain consensus prior to the
next T10 meeting.
1) On the changing the MODE field in subsequent downloads:
a. Seagate - declare an error if the MODE field changes from what was
sent in the first segment, with an ASC of INVALID FIELD IN CDB;
b. HP - MODE field changes for the last download for a download sequence
and this MODE determines the activation method - no error generated for
changes in the MODE field between segments; and
c. IBM - would be acceptable with "may terminate" with an ASC of
COMMAND SEQUENCE ERROR;
2) On the MODE SPECIFIC field in different segments:
a. Seagate - Capture the MODE SPECIFIC on the first download with MODE
0Dh and error if it changes;
b. HP - did not address this issue; and
c. IBM - use the value in the last segment and ignore the value in
other segments with no error generated.
There are some significant differences in this list where one implementation
generates an error where another would have problems with an error being
generated. Is there some middle ground that would allow application clients
to know how a device server will respond?
Thanks for any input,
SSD I/O Standards
Samsung Semiconductor, Inc.
Cell (408) 499-1839
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