SEND_RDMA_READ_ZERO
cm_node->send_rdma0_op = SEND_RDMA_READ_ZERO;
cm_node->send_rdma0_op = SEND_RDMA_READ_ZERO;
else if (!conn_ord && cm_node->send_rdma0_op == SEND_RDMA_READ_ZERO)
read0 = (cm_node->send_rdma0_op == SEND_RDMA_READ_ZERO);
case SEND_RDMA_READ_ZERO: