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Message-ID: <3ee9e8d1-01dc-0936-efde-b07482a5e785@linux.dev>
Date:   Sat, 25 Jun 2022 20:59:54 +0800
MIME-Version: 1.0
Subject: Re: [PATCH v3 0/2] RDMA/rxe: Fix no completion event issue
To:     "lizhijian@fujitsu.com" <lizhijian@fujitsu.com>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        Haakon Bugge <haakon.bugge@oracle.com>,
        Cheng Xu <chengyou@linux.alibaba.com>,
        "linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>
Cc:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
References: <20220516015329.445474-1-lizhijian@fujitsu.com>
 <fa9863f0-d42e-f114-5321-108dda270e27@fujitsu.com>
From:   Yanjun Zhu <yanjun.zhu@linux.dev>
In-Reply-To: <fa9863f0-d42e-f114-5321-108dda270e27@fujitsu.com>
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在 2022/6/7 16:32, lizhijian@fujitsu.com 写道:
> Hi Json & Yanjun
>
>
> I know there are still a few regressions on RXE, but i do wish you could take some time to review these *simple and bugfix* patches
> They are not related to the regressions.

Now there are some problems from Redhat and other Linux Vendors.

We had better focus on these problems.

Zhu Yanjun

>
>
> Thanks
> Zhijian
>
>
> On 16/05/2022 09:53, Li Zhijian wrote:
>> Since RXE always posts RDMA_WRITE successfully, it's observed that
>> no more completion occurs after a few incorrect posts. Actually, it
>> will block the polling. we can easily reproduce it by the below pattern.
>>
>> a. post correct RDMA_WRITE
>> b. poll completion event
>> while true {
>>     c. post incorrect RDMA_WRITE(wrong rkey for example)
>>     d. poll completion event <<<< block after 2 incorrect RDMA_WRITE posts
>> }
>>
>>
>> Li Zhijian (2):
>>     RDMA/rxe: Update wqe_index for each wqe error completion
>>     RDMA/rxe: Generate error completion for error requester QP state
>>
>>    drivers/infiniband/sw/rxe/rxe_req.c | 12 +++++++++++-
>>    1 file changed, 11 insertions(+), 1 deletion(-)
>>