NETMAP_REQ_OPT_SYNC_KLOOP_EVENTFDS
case NETMAP_REQ_OPT_SYNC_KLOOP_EVENTFDS:
case NETMAP_REQ_OPT_SYNC_KLOOP_EVENTFDS:
opt = nmreq_getoption(hdr, NETMAP_REQ_OPT_SYNC_KLOOP_EVENTFDS);
evopt->nro_opt.nro_reqtype = NETMAP_REQ_OPT_SYNC_KLOOP_EVENTFDS;