>> 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.

Regards,
Pasha

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