TXD_OWN
if (this->tx_flags & TXD_OWN)
(TXD_OWN | TXD_SOP | TXD_EOP | (len & TXD_LENGTH));
if (flags & TXD_OWN)
(TXD_OWN | TXD_SOP | TXD_EOP | (len & TXD_LENGTH));
cmd1 = TXD_OWN | TXD_SOP | TXD_EOP | (mac->to_vlan << 12) |
if (cmd & TXD_OWN)