Hey Sagi,
Hi Steve,
Is there no way to handle this in the core? Maybe have the polling context transition to DIRECT when the queue becomes empty and before re-arming the CQ?
That is what I suggested, but that would mean that we we need to drain the cq before making the switch, which means we need to allocate a dedicated qp for that cq, and even that doesn't guarantee that the ULP is not posting other wrs on its own qp(s)... So making this safe for infight I/O would be a challenge... If we end up agreeing that we are ok with this functionality, I'd much rather not deal with it and simply document "use with care".
So ib_change_cq_ctx() would be called to indicate the change should happen when it is safe to do so.
You lost me here... ib_change_cq_ctx would get called by who and when?
