move cq acknowledges after processing

Change-Id: Ifb63ee6caf58d05e5734dee1f252c096222445b7
Signed-off-by: Eyal Salomon <esalomon@mellanox.com>
resize cq to maximum size and avoid resizing it again

Change-Id: I924e8bbbc8747d9583989912258c2589e6d47035
Signed-off-by: Eyal Salomon <esalomon@mellanox.com>