[ofa-general] [RFC] handling slow listeners in rdma_cm

[Steve Wise]

This is all IB-specific, correct?



Sean Hefty wrote:
> I'm looking for input on different options for handling listeners in the rdma_cm
> that are slow to respond to connection requests.
> 
> Some options (in no particular order):
> 
> * Expose a call similar to ib_send_cm_mra (rdma_ack_connect?).
> 
> * Adapt an existing call for this purpose (rdma_notify? rdma_listen?).
> 
> * Have the rdma_cm always send an MRA.
> 
> * Add code to the rdma_cm to queue MRA responses, which would be sent after a
> specific timeout has occurred, if the connection had not yet already be accepted
> or rejected.
> 
> * Add a call to the ib_cm to send an MRA, but only if a duplicate REQ is
> received before the original REQ has been processed (ib_set_cm_mra?).
> 
> * Make the CMA_CM_RESPONSE_TIMEOUT a module parameter.
> 
> Any thoughts or comments?
> 
> - Sean
> _______________________________________________
> general mailing list
> general at lists.openfabrics.org
> http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general
> 
> To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general