t3_mac_enable
int t3_mac_enable(struct cmac *mac, int which);
t3_mac_enable(mac, MAC_DIRECTION_TX);
t3_mac_enable(mac, MAC_DIRECTION_RX);
t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
t3_mac_enable(mac, MAC_DIRECTION_RX | MAC_DIRECTION_TX);
t3_mac_enable(mac, MAC_DIRECTION_RX);
t3_mac_enable(mac, MAC_DIRECTION_RX);