linux-kernel - Re: [PATCH RFC V2 0/6] rxe_map_mr

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Date:   Mon, 6 Nov 2023 03:46:56 +0000
From:   "Zhijian Li (Fujitsu)" <lizhijian@...itsu.com>
To:     Greg Sword <gregsword0@...il.com>
CC:     "zyjzyj2000@...il.com" <zyjzyj2000@...il.com>,
        "jgg@...pe.ca" <jgg@...pe.ca>, "leon@...nel.org" <leon@...nel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "rpearsonhpe@...il.com" <rpearsonhpe@...il.com>,
        "Daisuke Matsuda (Fujitsu)" <matsuda-daisuke@...itsu.com>,
        "bvanassche@....org" <bvanassche@....org>,
        "yi.zhang@...hat.com" <yi.zhang@...hat.com>
Subject: Re: [PATCH RFC V2 0/6] rxe_map_mr_sg() fix cleanup and refactor



On 03/11/2023 18:17, Greg Sword wrote:
> On Fri, Nov 3, 2023 at 5:58 PM Li Zhijian <lizhijian@...itsu.com> wrote:
>>
>> I don't collect the Reviewed-by to the patch1-2 this time, since i
>> think we can make it better.
>>
>> Patch1-2: Fix kernel panic[1] and benifit to make srp work again.
>>            Almost nothing change from V1.
>> Patch3-5: cleanups # newly add
>> Patch6: make RXE support PAGE_SIZE aligned mr # newly add, but not fully tested
> 
> Do some work. Do not use these rubbish patch to waste our time.

So sorry about this. Of course, any other proposals are welcomed.




> 
>>
>> My bad arm64 mechine offten hangs when doing blktests even though i use the
>> default siw driver.
>>
>> - nvme and ULPs(rtrs, iser) always registers 4K mr still don't supported yet.
>>
>> [1] https://lore.kernel.org/all/CAHj4cs9XRqE25jyVw9rj9YugffLn5+f=1znaBEnu1usLOciD+g@mail.gmail.com/T/
>>
>> Li Zhijian (6):
>>    RDMA/rxe: RDMA/rxe: don't allow registering !PAGE_SIZE mr
>>    RDMA/rxe: set RXE_PAGE_SIZE_CAP to PAGE_SIZE
>>    RDMA/rxe: remove unused rxe_mr.page_shift
>>    RDMA/rxe: Use PAGE_SIZE and PAGE_SHIFT to extract address from
>>      page_list
>>    RDMA/rxe: cleanup rxe_mr.{page_size,page_shift}
>>    RDMA/rxe: Support PAGE_SIZE aligned MR
>>
>>   drivers/infiniband/sw/rxe/rxe_mr.c    | 80 ++++++++++++++++-----------
>>   drivers/infiniband/sw/rxe/rxe_param.h |  2 +-
>>   drivers/infiniband/sw/rxe/rxe_verbs.h |  9 ---
>>   3 files changed, 48 insertions(+), 43 deletions(-)
>>
>> --
>> 2.41.0
>>