HME_XD_GETFLAGS
flags = HME_XD_GETFLAGS(sc->sc_pci, hr->rb_txd, cur);
flags = HME_XD_GETFLAGS(sc->sc_pci, hr->rb_txd, sc->sc_tx_prod);
txflags = HME_XD_GETFLAGS(sc->sc_pci, sc->sc_rb.rb_txd, ri);
flags = HME_XD_GETFLAGS(sc->sc_pci, sc->sc_rb.rb_rxd, ri);