On Thu, Mar 17, 2011 at 06:09:18PM -0400, Greg Kerr wrote: > To provide more background information I ran ibdump on my program (on both > nodes) and then analyzed the output in Wireshark. Basically node1 shows > nothing but RC Acknowledge packets and Node 2 shows nothing but RC Send > First packets. Does that reveal anything about where the problem likely > lies?
That means node 2 is not getting/dropping the ACK packets from node 1. Best choices, wrong PSN, wrong DLID, wrong QPN on on node 1, or the QP is not in RTS on node 2. Remember all three of the values are supposed to be swapped, node 1/node 2 rq_psn/sq_psn, DLID/SLID, qpn/dest_qp_num, and you have to modify_qp three times all the way to RTS on both sides. Jason -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
