netdev - Re: [for-next V2 08/10] IB/mlx5: Allow future extension of libmlx5 input data

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Date:   Mon, 09 Jan 2017 23:24:37 -0500
From:   Doug Ledford <dledford@...hat.com>
To:     Saeed Mahameed <saeedm@...lanox.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        Leon Romanovsky <leonro@...lanox.com>,
        Eli Cohen <eli@...lanox.com>,
        Matan Barak <matanb@...lanox.com>,
        Leon Romanovsky <leon@...nel.org>
Subject: Re: [for-next V2 08/10] IB/mlx5: Allow future extension of libmlx5
 input data

On Sun, 2017-01-08 at 17:54 +0200, Saeed Mahameed wrote:
> From: Eli Cohen <eli@...lanox.com>
> 
> Current check requests that new fields in struct
> mlx5_ib_alloc_ucontext_req_v2 that are not known to the driver be
> zero.
> This was introduced so new libraries passing additional information
> to
> the kernel through struct mlx5_ib_alloc_ucontext_req_v2 will be
> notified
> by old kernels that do not support their request by failing the
> operation. This schecme is problematic since it requires libmlx5 to 
                  ^ Typo



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Doug Ledford <dledford@...hat.com>
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