Update QP initialization and cleanup to handle mem-free mode.  In
mem-free mode, work queue sizes have to be rounded up to a power of 2,
we need to allocate doorbells, there must be memory mapped for the
entries in the QP and extended QP context table that we use, and the
entries of the receive queue must be initialized.
Signed-off-by: Roland Dreier <roland@topspin.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>