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From: Or Gerlitz <gerlitz.or@gmail.com>
Date: Sun, 19 Jun 2016 22:43:51 +0300
Message-ID: <CAJ3xEMg1FdojpWiKKaENQjGnuQzfcQohWcVBDv+ZYGdKvtv1vA@mail.gmail.com>
Subject: Re: [PATCH v2 01/24] mlx4-ib: Use coherent memory for priv pages
To: Sagi Grimberg <sagigrim@gmail.com>, Yishai Hadas <yishaih@mellanox.com>
Cc: Chuck Lever <chuck.lever@oracle.com>, Leon Romanovsky <leon@kernel.org>,
        linux-rdma <linux-rdma@vger.kernel.org>,
        Linux NFS Mailing List <linux-nfs@vger.kernel.org>
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Sender: linux-nfs-owner@vger.kernel.org

On Sun, Jun 19, 2016 at 10:38 PM, Or Gerlitz <gerlitz.or@gmail.com> wrote:

> From quick reading of the patch I got the impression that some scheme
> which used to work is now broken, did we get a bisection result
> pointing to the upstream commit which introduce the regression? I
> didn't see such note along the thread, basically, I think this is
> where we should be starting, thoughts? I also added the mlx4 core/IB
> maintainer.

Oh, I missed the 1st post of the thread pointing to commit
1b2cd0fc673c ('IB/mlx4: Support the new memory [...]') -- looking on
the patch, the only thing which is explicitly visible to upper layers
is the setting of ib_dev.map_mr_sg API call. So there's NFS code which
depends on this verb being exported, and if yes, does X else does Y?