hv_rx_hi_write_idx 1004 dev/pci/if_txp.c 	sc->sc_rxhir.r_woff = &sc->sc_hostvar->hv_rx_hi_write_idx;
hv_rx_hi_write_idx  484 dev/pci/if_txpreg.h 	volatile u_int32_t	hv_rx_hi_write_idx;	/* arm->host */