cas_desc
CAS_CDTXOFF(frag), sizeof(struct cas_desc),
struct cas_desc ccd_rxdescs[CAS_NRXDESC];
struct cas_desc ccd_rxdescs2[CAS_NRXDESC];
CAS_CDTXOFF(__x), sizeof(struct cas_desc) * \
CAS_CDTXOFF(__x), sizeof(struct cas_desc) * __n, (ops)); \
CAS_CDRXOFF((x)), sizeof(struct cas_desc), (ops))
CAS_CDRXCOFF((x)), sizeof(struct cas_desc), (ops))
struct cas_desc *__rxd = &sc->sc_rxdescs[(d)]; \
struct cas_desc ccd_txdescs[CAS_NTXDESC];