On Thu, Dec 06, 2018 at 12:40:26PM +0200, Gal Pressman wrote: > The opaque handle is reported in the RX work requests completions; > in case the address handle was not yet registered, the device > reports the GID in an extended completion entry. Therefore, we do > not need the 40 byte offset memory layout. If the protocol doesn't have the 40 byte offset then it isn't IBV_QPT_UD, and you'll need to also use a driver QP for this as well. Jason