Sun's IB group has asked me to forward the following email to see if
anyone has any comments on this email.
thanks,
--td
Subject:
strong ordering for data registered memory
From:
David Brean <david.br...@sun.com>
Date:
Tue, 10 Nov 2009 15:19:26 -0500
To:
linux-rdma <linux-r...@vger.kernel.org>
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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