Re: [PATCH v3 0/2] RDMA/rxe: Fix no completion event issue

[Yanjun Zhu]

在 2022/6/7 16:32, lizhijian@xxxxxxxxxxx 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(-)