VGE_BUFLEN
d->vge_buflen = htole16(VGE_BUFLEN(segs[0].ds_len) | VGE_RXDESC_I);
f->vge_buflen = htole16(VGE_BUFLEN(segs[i].ds_len));
f->vge_buflen = htole16(VGE_BUFLEN(VGE_MIN_FRAMELEN -