[openib-general] [PATCH] ib_cancel_mad API

[Roland Dreier]

    Sean> Currently, the consumer _only_ has to free their send
    Sean> context in their send MAD completion handler.  No reference
    Sean> counting by the consumer is needed.  And it doesn't matter
    Sean> if a send succeeds, timeouts, has an error, or is canceled.

The consumer does need to do reference counting.  If I cancel a MAD
and get -EINVAL back, I might still get a completion later, so I have
to have a count of the number of MADs outstanding and wait for that to
go to zero.

 - R.