On 10/3/2012 5:50 PM, Hefty, Sean wrote: >> 1) rping, on the client side, clears the conn_params for the newly to be >> attempted connection, then sets: >> >> conn_param.responder_resources = 1; >> conn_param.initiator_depth = 1; >> conn_param.retry_count = 10; > > >> 2) the qib driver enforces a maximum of 7 for retry_count. I don't see >> anything in the spec that specifies a maximum for this entry, and in >> particular I know it doesn't call out for 7 to mean infinite retries >> like it does for rnr_retry_count. > > On IB, retry count is a 3-bit value. See the CM REQ message. > > The kernel rdma cm should probably check for a valid value and reduce it > accordingly.
Then it's also fair to say that right now rping passes a known invalid value and needs fixed ;-) -- Doug Ledford <[email protected]> GPG KeyID: 0E572FDD http://people.redhat.com/dledford Infiniband specific RPMs available at http://people.redhat.com/dledford/Infiniband
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