- support for external phys, both fibre and twisted pair, added:
      * remove the "phy" parameter from mdio_{read,write}: the
        function accesses the current phy.
      * new functions to access external phys: miiport_{read,write}
      * scan for external phys on _probe.
      * ethtool support for switching between internal
        and external phys.
      * introduce an init_phy_fixup helper: a few settings must be
        reapplied after reenabling the internal phy.
- move register_netdev to the end of _probe. The current position
could cause races with hotplug.
- do not wait for autonegotiation completed after initialization.
- use pci_name() instead of dev->name until register_netdev has
initialized dev->name.
- read the BMSR register in the link beat interrupt twice:
The link status field is latched, without reading twice a link up
event will be missed (and only noticed a few seconds later in the
media timer)
- restart the autonegotiation after modifying the capabilities.