strong ordering for data registered memory

[David Brean]

Some time ago there was an email sent to this group with the subject 
"weak ordering for data registered memory".  I don't recall any action 
resulting from this thread.  So, I have a question.  If a bit were 
defined to specify "strong ordering", perhaps as a "access" flag (see 
ibv_access_flags) and used with ibv_reg_mr(), would that be sufficient 
for (1) client applications that need a HW "guarantee" of writing the 
last byte of an RDMA last and (2) platform implementations that need to 
deliver that feature?

-David
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