[IBAL] Refine UAL_NDI_NOOP handler.
The UAL_NDI_NOOP IOCTL handler was added to allow memory registration in user-mode to notify a client using an I/O completion port. This patch extends the functionality to allow the IOCTL to return either STATUS_SUCCESS or STATUS_TIMEOUT. The STATUS_TIMEOUT facility is used by the NetworkDirect provider when IBAT returns pending. It's crude, but gets the job done.
Signed-off-by: Fab Tillier <ftillier@microsoft.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1/trunk@1391
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