From: Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
To: 丁定华 <dingdinghua85-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: two questions about RDMA-WRITE
Date: Tue, 13 Apr 2010 09:50:20 -0500 [thread overview]
Message-ID: <4BC484AC.80804@opengridcomputing.com> (raw)
In-Reply-To: <q2v7bb361261004130308za7b4d6ccj6fdb657b7c7cc7e9-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
丁定华 wrote:
> Hi guys:
> I'm doing a project using RDMA to transfer data between servers. I'm
> using RDMA_PS_TCP type and do RDMA_WRITE operations from client node
> to server node. While the program succeed in setting up connection and
> transferring data, I 'm still very confused about two problems:
> (1) After transfer the data using IB_WR_RDMA_WRITE , the complete
> queue entry found that the opcode turned from IB_WR_RDMA_WRITE to
> IB_WR_RDMA_WRITE_WITH_IMM, I don't know the meaning of this opcode and
> the reason of the change.
>
The opcode in the completion is of type enum ib_wc_opcode, not enum
ib_wr_opcode. You are mis-interpreting the opcode in the completion.
> (2) It takes a long time to finish rdma_disconnect work (about 10
> seconds), so is it a reasonable time?
>
What device are you using?
Steve.
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next prev parent reply other threads:[~2010-04-13 14:50 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-13 10:08 two questions about RDMA-WRITE 丁定华
[not found] ` <q2v7bb361261004130308za7b4d6ccj6fdb657b7c7cc7e9-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-13 14:50 ` Steve Wise [this message]
[not found] ` <4BC484AC.80804-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2010-04-14 2:15 ` Ding Dinghua
2010-04-13 15:48 ` Sean Hefty
[not found] ` <77BFFFE3D9C34D64A03DA5A9DC22F42D-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2010-04-14 3:56 ` Ding Dinghua
[not found] ` <20100414034142.GA5567-6UwBTAaVBkEeWBJJgrHO4P1unptsbck7@public.gmane.org>
2010-04-15 17:17 ` Sean Hefty
[not found] ` <4B0EDAC5753E48CD8CE32B6E3EF15949-Zpru7NauK7drdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2010-04-21 12:37 ` Ding Dinghua
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