[openib-general] MAD queuing model

[Roland Dreier]

    Michael> I'd like to propose a simpler approach: if the Q is full,
    Michael> drop the MAD without any indication to the user (pretend
    Michael> the MAD was sent), and let RMPP retry.

It's an interesting idea (sort of the most trivial possible queue
scheduler).  However I don't see how you handle the fact that the
consumer will be waiting for a send completion to free the MAD, and I
think the consumer will rely on completions occurring in order.

 - R.