Years before, I posted how to use libibverbs for RDMA communication. When initializing queue pair connection, we need some destination information: bool changeQueuePairStateToRTR(struct ibv_qp* queue_pair, int ib_port, uint32_t destination_qp_number, uint16_t destination_local_id) { struct ibv_qp_attr rtr_attr; memset(&rtr_attr, 0, sizeof(rtr_attr)); rtr_attr.qp_state = ibv_qp_state::IBV_QPS_RTR; rtr_attr.path_mtu = ibv_mtu::IBV_MTU_1024; rtr_attr.rq_psn = 0; rtr_attr.max_dest_rd_atomic = 1; ...
