linux-kernel - Re: [PATCH for-next v7 0/7] On-Demand Paging on SoftRoCE

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Date:   Tue, 5 Dec 2023 09:50:39 +0800
From:   Zhu Yanjun <yanjun.zhu@...ux.dev>
To:     Jason Gunthorpe <jgg@...dia.com>,
        Daisuke Matsuda <matsuda-daisuke@...itsu.com>
Cc:     linux-rdma@...r.kernel.org, leon@...nel.org, zyjzyj2000@...il.com,
        linux-kernel@...r.kernel.org, rpearsonhpe@...il.com,
        yangx.jy@...itsu.com, lizhijian@...itsu.com, y-goto@...itsu.com
Subject: Re: [PATCH for-next v7 0/7] On-Demand Paging on SoftRoCE

在 2023/12/5 8:11, Jason Gunthorpe 写道:
> On Thu, Nov 09, 2023 at 02:44:45PM +0900, Daisuke Matsuda wrote:
>>
>> Daisuke Matsuda (7):
>>    RDMA/rxe: Always defer tasks on responder and completer to workqueue
>>    RDMA/rxe: Make MR functions accessible from other rxe source code
>>    RDMA/rxe: Move resp_states definition to rxe_verbs.h
>>    RDMA/rxe: Add page invalidation support
>>    RDMA/rxe: Allow registering MRs for On-Demand Paging
>>    RDMA/rxe: Add support for Send/Recv/Write/Read with ODP
>>    RDMA/rxe: Add support for the traditional Atomic operations with ODP
> 
> What is the current situation with rxe? I don't recall seeing the bugs
> that were reported get fixed?

Exactly. A problem is reported in the link 
https://www.spinics.net/lists/linux-rdma/msg120947.html

It seems that a variable 'entry' set but not used 
[-Wunused-but-set-variable]

And ODP is an important feature. Should we suggest to add a test case 
about this ODP in rdma-core to verify this ODP feature?

Zhu Yanjun

> 
> I'm reluctant to dig a deeper hold until it is done?
> 
> Thanks,
> Jason