cpsw_txdesc_paddr
cpsw_txdesc_paddr(sc, cpi));
cpsw_txdesc_paddr(sc, sc->sc_txhead));
bd.next = cpsw_txdesc_paddr(sc,
bd.next = cpsw_txdesc_paddr(sc,
cpsw_txdesc_paddr(sc, txstart));
cpsw_txdesc_paddr(sc, txstart));