Messages in this thread | ![/](/images/icornerl.gif) | | Date | Fri, 11 Nov 2022 14:30:51 +0800 | Subject | Re: [for-next PATCH v5 00/11] RDMA/rxe: Add RDMA FLUSH operation | From | Yanjun Zhu <> |
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在 2022/11/11 14:10, lizhijian@fujitsu.com 写道: > > On 11/11/2022 13:52, Yanjun Zhu wrote: >> 在 2022/11/11 13:10, lizhijian@fujitsu.com 写道: >>> >>> On 11/11/2022 10:49, Yanjun Zhu wrote: >>>> 在 2022/10/29 1:57, Jason Gunthorpe 写道: >>>>> On Tue, Sep 27, 2022 at 01:53:26PM +0800, Li Zhijian wrote: >>>>>> Hey folks, >>>>>> >>>>>> Firstly i want to say thank you to all you guys, especially Bob, who >>>>>> in the >>>>>> past 1+ month, gave me a lots of idea and inspiration. >>>>> I would like it if someone familiar with rxe could reviewed-by the >>>>> protocol parts. >>>> Hi, Jason >>>> >>>> I reviewed these patches. I am fine with these patches. >>>> >>>> Hi, Zhijian >>>> >>>> I noticed the followings: >>>> " >>>> $ ./rdma_flush_server -s [server_address] -p [port_number] >>>> client: >>>> $ ./rdma_flush_client -s [server_address] -p [port_number] >>>> " >>>> Can you merge the server and the client to rdma-core? >>> Yanjun, >>> >>> Yes, there was already a draft PR here >>> https://github.com/linux-rdma/rdma-core/pull/1181, but it cannot go >>> ahead until the kernel's patches are merged. >>> >>> and i will post a new version these days, would you mind if i add your >>> "Reviewed-by" in next version ? >> Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev> >> Thanks. >> >> Another problem, normally rxe should connect to physical ib devices, >> such as mlx ib device. That is, one host is rxe, the other host is mlx >> ib device. The rdma connection should be created between the 2 hosts. > it's fully compatible with old operation. > > >> Do you connect to mlx ib device with this RDMA FLUSH operation? >> And what is the test result? > Yes, i tested it. > > After these patches, only RXE device can register *FLUSHABLE* MRs > successfully. If mlx try that, EOPNOSUPP will be returned. > > Similarly, Since other hardwares(MLX for example) have not supported > FLUSH operation, EOPNOSUPP will be returned if users try to to that. > > In short, for RXE requester, MLX responder will return error for the > request. MLX requester is not able to request a FLUSH operation.
Thanks. Do you mean that FLUSH operation is only supported in RXE? ^_^
And MLX does not support FLUSH operation currently?
Zhu Yanjun
> > Thanks > Zhijian > > >> Thanks a lot. >> Zhu Yanjun >> >>> >>> >>>> Thanks, >>>> Zhu Yanjun >>>> >>>>> Jason
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