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Date:   Wed, 20 Feb 2019 10:14:41 -0700
From:   Jason Gunthorpe <>
To:     Håkon Bugge <>
Cc:     Chuck Lever <>,
        Yishai Hadas <>,
        Doug Ledford <>,,, OFED mailing list <>,
Subject: Re: [PATCH] RDMA/mlx4: Spread completion vectors for proxy CQs

On Tue, Feb 19, 2019 at 06:32:50PM +0100, Håkon Bugge wrote:
>    Anyway, Jason mentioned in a private email that maybe we could use the
>    new completion API or something? I am not familiar with that one
>    (yet).

I was thinking of the stuff in core/cq.c - but it also doesn't have
automatic comp_vector balancing. It is the logical place to put
something like that though..

An API to manage a bundle of CPU affine CQ's is probably what most
ULPs really need.. (it makes little sense to create a unique CQ for
every QP)


Let the core code balance the cqn's and allocate (shared) CQ


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