Re: [PATCH RESEND for-next v6 0/4] RDMA/rxe: Fix no completion event issue

From: Jason Gunthorpe <jgg@nvidia.com>
To: Li Zhijian <lizhijian@fujitsu.com>, Bob Pearson <rpearsonhpe@gmail.com>
Cc: Yanjun Zhu <yanjun.zhu@linux.dev>,
	Haakon Bugge <haakon.bugge@oracle.com>,
	linux-rdma@vger.kernel.org, Leon Romanovsky <leon@kernel.org>,
	Cheng Xu <chengyou@linux.alibaba.com>
Subject: Re: [PATCH RESEND for-next v6 0/4] RDMA/rxe: Fix no completion event issue
Date: Fri, 29 Jul 2022 16:48:25 -0300	[thread overview]
Message-ID: <YuQ5iYNSOSyVLZsz@nvidia.com> (raw)
In-Reply-To: <1658307368-1851-1-git-send-email-lizhijian@fujitsu.com>

On Wed, Jul 20, 2022 at 04:56:04AM -0400, Li Zhijian wrote:
> No change since v5, just resend it via another smtp instead of
> Microsoft Exchange which made patches messed up.
> 
> 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
> }
> 
> V4 add new patch from Bob where it make requester stop executing qp
> operation as soon as possible.
> 
> Both blktests and pyverbs tests are passed fine.
>
> Bob Pearson (1):
>   RDMA/rxe: Split qp state for requester and completer
> 
> Li Zhijian (3):
>   RDMA/rxe: Update wqe_index for each wqe error completion
>   RDMA/rxe: Generate error completion for error requester QP state
>   RDMA/rxe: Fix typo in comment

Bob are you Ok with these?

Jason