virtio_net_hdr_mrg_rxbuf
new_frame_size = sizeof(struct virtio_net_hdr_mrg_rxbuf) +
struct virtio_net_hdr_mrg_rxbuf *mhdr;
mhdr = mtod(m, struct virtio_net_hdr_mrg_rxbuf *);
adjsz = sizeof(struct virtio_net_hdr_mrg_rxbuf);
sc->vtnet_hdr_size = sizeof(struct virtio_net_hdr_mrg_rxbuf);
struct virtio_net_hdr_mrg_rxbuf mhdr;