>> I mentioned on the call that for Mellanox devices (+OFA verbs) this resource is really cheap. Do you run mellanox hca + OFA verbs ?
> (I'll reply because I know Terry is offline for the rest of the day)
> Yes, he does.
I asked because SUN used to have own verbs driver.
> The heart of the question: is it incorrect to assume that we'll consume (num CQE * CQE size) registered memory for each QP opened?
QP or CQ ? I think you don't want to assume anything there. Verbs (user and kernel) do their own magic there.
I think Mellanox should address this question.