MAC_100HD
MAC_100HD | MAC_10 | MAC_1000FD;
MAC_100HD | MAC_10;
capabilities &= ~(MAC_10HD | MAC_100HD);
caps &= ~(MAC_10HD | MAC_100HD);
priv->hw->link.caps &= ~(MAC_10HD | MAC_100HD | MAC_1000HD);
priv->hw->link.caps |= (MAC_10HD | MAC_100HD | MAC_1000HD);
priv->hw->link.caps &= ~(MAC_1000HD | MAC_100HD | MAC_10HD);
{ MAC_100HD, SPEED_100, DUPLEX_HALF, BIT(LINK_CAPA_100HD) },
MAC_100 = MAC_100HD | MAC_100FD,