[ofa-general] Re: [RFC][PATCH] last wqe event handler patch

[Roland Dreier]

Actually I'm beginning to wonder what's going on here.

The IB spec says a "last WQE reached" event is generated when a CQE is
generated for the last WQE.  Is this different from the CQE actually
being in the CQ?

This is probably a question for Eli or other Mellanox guys: is it
possible for the driver to see a "last WQE reached" event before all
CQEs are actually visible with mthca HW -- ie is the scenario below with
two QPs attached to an SRQ:

    last WQE event for QP A
    last WQE event for QP B
    post send to QP that will complete with flush err

then poll CQEs and see the send completion from QP A followed by a
receive completion for QP B actually possible?