MAC_MODE_LINK_POLARITY
tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
tw32_carefully(MAC_MODE, tp->mac_mode | MAC_MODE_LINK_POLARITY);
tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
tp->mac_mode |= MAC_MODE_LINK_POLARITY;
tp->mac_mode |= MAC_MODE_LINK_POLARITY;