[openib-general] RDMA write with immediate

[Josh England]

On Thu, 2005-06-23 at 08:58 -0700, Roland Dreier wrote:
>     Josh> I get a completion with failed status 13.
> 
>     Josh> Again, this works just fine with IBV_WR_RDMA_WRITE.  I'm
>     Josh> using 2.6.11.11 with SVN rev 2606.  I'll update stuff and
>     Josh> try again.
> 
> status 13 is "RNR retries exceeded."  This means that the remote side
> did not have a receive ready to handle this work request.
> 
> What are you trying to do here?  The between RDMA write and RDMA write
> with immediate operations is sending immediate data consumes a receive
> request on the remote system and generates a completion with the
> immediate data.  So you need to post a receive to handle RDMA write
> with immediate but not regular RDMA write.

There's my problem.  I was just polling on the receive buffer
before...not posting a receive.

> Did you modify your app to post the receive here?

I'll do that.  Thanks,

-JE

>  - R.
>