Network drivers

Most network drivers will work unchanged
...modulo all the other changes

Dynamic net_device allocation
Modules cannot know when a device can be freed
Use alloc_netdev(), free_netdev()

The big change: NAPI
Better performance through interrupt mitigation
Suited to high-bandwidth adaptors
Turn off interrupts, use polling
NAPI support is optional

Other changes:
TCP segmentation offloading
802.1q VLAN support
Ethtool support