RE: Problem running rping over Intel adapters

2012-10-04 Thread Marciniszyn, Mike
and or'ed into the modify mechanism. Mike -Original Message- From: Hefty, Sean Sent: Wednesday, October 03, 2012 6:39 PM To: Doug Ledford; Marciniszyn, Mike; linux-rdma@vger.kernel.org Subject: RE: Problem running rping over Intel adapters 1) rping, on the client side, clears

Re: Problem running rping over Intel adapters

2012-10-04 Thread Steve Wise
On 10/4/2012 12:41 AM, Or Gerlitz wrote: On 04/10/2012 03:47, Steve Wise wrote: Not used by iwarp drivers... Which one, the retry counter or the RNR retry counter? rnr_retry_count has no meaning in iWARP. There is no RNR message in the iwarp protocol. For some iwarp devices (cxgb3 for

RE: Problem running rping over Intel adapters

2012-10-04 Thread Hefty, Sean
retry_count, I assume, is for connection establishment? For the Chelsio devices, this is all up to the TCP stack and thus this counter is not used. If there is no TCP listener, then the connection establishment will fail immediately. If the node is not reachable, then normal TCP retransmit

Re: Problem running rping over Intel adapters

2012-10-04 Thread Steve Wise
On 10/4/2012 10:01 AM, Hefty, Sean wrote: retry_count, I assume, is for connection establishment? For the Chelsio devices, this is all up to the TCP stack and thus this counter is not used. If there is no TCP listener, then the connection establishment will fail immediately. If the node is

Problem running rping over Intel adapters

2012-10-03 Thread Doug Ledford
We ran into this problem when testing rping over Intel/QLogic hardware: [root@rdmaperf3 ~]# rping -s -a 172.31.2.103 -v wait for CONNECTED state 10 connect error -1 cma event RDMA_CM_EVENT_REJECTED, error 28 [root@rdmaperf3 ~]# [root@rdmaperf8 ~]# rping -c -a 172.31.2.103 -v -C 5 cma event

RE: Problem running rping over Intel adapters

2012-10-03 Thread Hefty, Sean
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

Re: Problem running rping over Intel adapters

2012-10-03 Thread Doug Ledford
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

RE: Problem running rping over Intel adapters

2012-10-03 Thread Hefty, Sean
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

Re: Problem running rping over Intel adapters

2012-10-03 Thread Steve Wise
On 10/3/2012 5:02 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

Re: Problem running rping over Intel adapters

2012-10-03 Thread Or Gerlitz
On 04/10/2012 03:47, Steve Wise wrote: Not used by iwarp drivers... Which one, the retry counter or the RNR retry counter? Or. -- To unsubscribe from this list: send the line unsubscribe linux-rdma in the body of a message to majord...@vger.kernel.org More majordomo info at