S_RX_ETHHDR_LEN
#define V_RX_ETHHDR_LEN(x) ((x) << S_RX_ETHHDR_LEN)
#define G_RX_ETHHDR_LEN(x) (((x) >> S_RX_ETHHDR_LEN) & M_RX_ETHHDR_LEN)
#define G_RX_T6_ETHHDR_LEN(x) (((x) >> S_RX_ETHHDR_LEN) & M_RX_T6_ETHHDR_LEN)