XGMAC_TDES2_B1L
p->des2 |= cpu_to_le32(len & XGMAC_TDES2_B1L);
p->des2 |= cpu_to_le32(len1 & XGMAC_TDES2_B1L);
return (le32_to_cpu(p->des2) & XGMAC_TDES2_B1L);