[openib-general] Verbs QP create with RQ=0?

Sean Hefty mshefty at ichips.intel.com
Tue Oct 31 14:59:26 PST 2006


Davis, Arlin R wrote:
> We have an application that doesn’t require a receive CQ or QP resources 
> since it will never post receive messages. We are attempting to limit 
> our resources and reduce our receive resources to zero but it appears 
> that the create qp assumes a receive CQ is always provided. According to 
> the specification this appears to be correct, but it is not clear what 
> the minimum requirements are for the receive CQ and QP resources. What 
> are your recommendations for creating a QP with no recv QP/CQ resources? 
> Is it possible to create receive queue of 0?

Why not just set the receive CQ == the send CQ?  Creating a QP with a receive 
queue size of 0 should be possible.  Is that failing?

- Sean




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