SDEV_NO_NCACHE
spp->sp_nflags |= SDEV_NO_NCACHE;
if (spp->sp_nflags & SDEV_NO_NCACHE)
dv->sdev_flags |= SDEV_NO_NCACHE;
{ "zcons", NULL, NULL, NULL, SDEV_NO_NCACHE },
devipnet_validate, SDEV_DYNAMIC | SDEV_VTOR | SDEV_NO_NCACHE },
(dv->sdev_flags & SDEV_NO_NCACHE)