There is no generic counter you can query to find the number of RNR retires. The best you can do is set the IBV_QP_RNR_RETRY parameter to zero and see if you get any IBV_WC_RNR_RETRY_EXC_ERR error completions. If IBV_QP_RNR_RETRY is N, the HCA will do up to N=0..6 retries for you (or if it is 7, an infinite number of times).
On Tue, 2008-03-04 at 15:25 -0600, Steve Wise wrote: > All, > > This question is regarding SENDs arriving when no RECV buffer is posted. > For IB, somehow the transport can deal with this and force the sender > transport to retransmit. > > First, is my statement above correct? > > If so, How can I detect that this is happening on an IB RC? IE is there > some stat I can query? > > Thanks, > > Steve. > _______________________________________________ > general mailing list > [email protected] > http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general > > To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general _______________________________________________ general mailing list [email protected] http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
