linux-kernel - Re: [for-next PATCH v5 00/11] RDMA/rxe: Add RDMA FLUSH operation

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Message-ID: <Y1wU87P4iQBF0o4z@nvidia.com>
Date:   Fri, 28 Oct 2022 14:44:19 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Li Zhijian <lizhijian@...itsu.com>
Cc:     Bob Pearson <rpearsonhpe@...il.com>,
        Leon Romanovsky <leon@...nel.org>, linux-rdma@...r.kernel.org,
        Zhu Yanjun <zyjzyj2000@...il.com>, yangx.jy@...itsu.com,
        y-goto@...itsu.com, mbloch@...dia.com, liangwenpeng@...wei.com,
        tom@...pey.com, tomasz.gromadzki@...el.com,
        dan.j.williams@...el.com, linux-kernel@...r.kernel.org
Subject: Re: [for-next PATCH v5 00/11] RDMA/rxe: Add RDMA FLUSH operation

On Tue, Sep 27, 2022 at 01:53:26PM +0800, Li Zhijian wrote:
> Hey folks,
> 
> Firstly i want to say thank you to all you guys, especially Bob, who in the
> past 1+ month, gave me a lots of idea and inspiration.
> 
> With the your help, some changes are make in 5th version, such as:
> - new names and new patch split schemem, suggested by Bob
> - bugfix: set is_pmem true only if the whole MR is pmem. it's possible the
>   one MR container both PMEM and DRAM.
> - introduce feth structure, instead of u32
> - new bugfix to rxe_lookup_mw() and lookup_mr(), see (RDMA/rxe: make sure requested access is a subset of {mr,mw}->access),
>   with this fix, we remove check_placement_type(), lookup_mr() has done the such check.
> - Enable QP attr flushable
> These change logs also appear in the patch it belongs to.
> 
> These patches are going to implement a *NEW* RDMA opcode "RDMA FLUSH".
> In IB SPEC 1.5[1], 2 new opcodes, ATOMIC WRITE and RDMA FLUSH were
> added in the MEMORY PLACEMENT EXTENSIONS section.

This doesn't apply anymore, I did try to fix it, but it ended up not
compiling, so it is better if you handle it and repost.

Thanks,
Jason