linux-kernel - Re: [PATCH v4 20/24] fpga: dfl: add FPGA Accelerated Function Unit driver basic framework

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Message-ID: <CANk1AXRA81cSJchjzHmzG8QZMZETEppTw7BW3of++20VFcQ3Qw@mail.gmail.com>
Date:   Mon, 19 Mar 2018 13:40:05 -0500
From:   Alan Tull <atull@...nel.org>
To:     Wu Hao <hao.wu@...el.com>
Cc:     Moritz Fischer <mdf@...nel.org>, linux-fpga@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-api@...r.kernel.org, "Kang, Luwei" <luwei.kang@...el.com>,
        "Zhang, Yi Z" <yi.z.zhang@...el.com>,
        Tim Whisonant <tim.whisonant@...el.com>,
        Enno Luebbers <enno.luebbers@...el.com>,
        Shiva Rao <shiva.rao@...el.com>,
        Christopher Rauer <christopher.rauer@...el.com>,
        Xiao Guangrong <guangrong.xiao@...ux.intel.com>
Subject: Re: [PATCH v4 20/24] fpga: dfl: add FPGA Accelerated Function Unit
 driver basic framework

On Tue, Feb 13, 2018 at 3:24 AM, Wu Hao <hao.wu@...el.com> wrote:

Hi Hao,

I acked this back in v2.

> On DFL FPGA devices, the Accelerated Function Unit (AFU), can be
> reprogrammed for different functions. It connects to the FPGA
> infrastructure("blue bistream") via a Port. Port CSRs are implemented
> separately from the AFU CSRs to provide control and status of the Port.
> Once valid green bitstream is programmed into the AFU, it allows access
> to the AFU CSRs in the AFU MMIO space.
>
> This patch only implements basic driver framework for AFU, including
> device file operation framework.
>
> Signed-off-by: Tim Whisonant <tim.whisonant@...el.com>
> Signed-off-by: Enno Luebbers <enno.luebbers@...el.com>
> Signed-off-by: Shiva Rao <shiva.rao@...el.com>
> Signed-off-by: Christopher Rauer <christopher.rauer@...el.com>
> Signed-off-by: Xiao Guangrong <guangrong.xiao@...ux.intel.com>
> Signed-off-by: Wu Hao <hao.wu@...el.com>
Acked-by: Alan Tull <atull@...nel.org>

Alan