Re: two questions about RDMA-WRITE

[Steve Wise <swise-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@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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