linux-kernel - Re: [PATCH 11/16] fpga: intel: fme: add partial reconfiguration sub feature support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <fb8a6ef6-c61b-7f4c-220b-66ba56c9364d@gmail.com>
Date:   Fri, 31 Mar 2017 12:11:12 +0800
From:   Xiao Guangrong <xiaoguangrong.eric@...il.com>
To:     Alan Tull <atull@...nel.org>, Wu Hao <hao.wu@...el.com>
Cc:     Moritz Fischer <moritz.fischer@...us.com>,
        linux-fpga@...r.kernel.org,
        linux-kernel <linux-kernel@...r.kernel.org>,
        luwei.kang@...el.com, 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>,
        Alan Tull <alan.tull@...el.com>,
        Xiao Guangrong <guangrong.xiao@...ux.intel.com>
Subject: Re: [PATCH 11/16] fpga: intel: fme: add partial reconfiguration sub
 feature support



On 31/03/2017 4:30 AM, Alan Tull wrote:
> On Thu, Mar 30, 2017 at 7:08 AM, Wu Hao <hao.wu@...el.com> wrote:
>> From: Kang Luwei <luwei.kang@...el.com>
>>
>> Partial Reconfiguration (PR) is the most important function for FME. It
>> allows reconfiguration for given Port/Accelerated Function Unit (AFU).
>>
>> This patch adds support for PR sub feature. In this patch, it registers
>> a fpga_mgr and implements fpga_manager_ops, and invoke fpga_mgr_buf_load
>> for PR operation once PR request received via ioctl. Below user space
>> interfaces are exposed by this sub feature.
>>
>> Sysfs interface:
>> * /sys/class/fpga/<fpga.x>/<intel-fpga-fme.x>/interface_id
>>   Read-only. Indicate the hardware interface information. Userspace
>>   applications need to check this interface to select correct green
>>   bitstream format before PR.
>>
>> Ioctl interface:
>> * FPGA_FME_PORT_PR
>>   Do partial reconfiguration per information from userspace, including
>>   target port(AFU), buffer size and address info. It returns the PR status
>>   (PR error code if failed) to userspace.
>>
>> 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: Alan Tull <alan.tull@...el.com>
>
> Hi Wu Hao,
>
> Thanks for submitting your patches.
>
> I think there's been a misunderstanding of the meaning of
> 'Signed-off-by' [1].  I have not signed off on this code or had a hand
> in its development.  But I'm happy to get to review it now.  It will
> take a bit of time; I expect to be replying next week.

Hi Alan,

Sorry to confuse you, i think it's because you helped Chris a lot to
implement this interface and we'd like to include your credit as this
way. If you dislike, it will be dropped. :)

Thanks for your review in advance.