LGE_JUMBO_FRAMELEN
m_new->m_ext.ext_size = LGE_JUMBO_FRAMELEN;
#define LGE_JUMBO_MTU (LGE_JUMBO_FRAMELEN-ETHER_HDR_LEN-ETHER_CRC_LEN)
#define LGE_JRAWLEN (LGE_JUMBO_FRAMELEN + ETHER_ALIGN)