UCT_IFACE_OPEN_MODE_DEVICE  277 opal/mca/btl/uct/btl_uct_tl.c                                        .open_mode = UCT_IFACE_OPEN_MODE_DEVICE,
UCT_IFACE_OPEN_MODE_DEVICE  282 opal/mca/btl/uct/btl_uct_tl.c                                        .rx_headroom = 0, .open_mode = UCT_IFACE_OPEN_MODE_DEVICE,