heads up: netmap code update next week.

Hi,
some time next week we will push to head (and hopefully, to stable/10
before the code slush) an update to the netmap code.  There will
be no API changes, and the changes are mostly internal restructuring
of the netmap kernel code and simplification of device drivers (we
will ll handle most of them ourselves and talk to Navdeep for the
chelsio bits).

These changes are needed to ease upcoming work on separate memory
allocators, and the passthrough code which we are working on.

If anyone has local diffs that would like to submit, please let us know
so we can merge them as well if appropriate

cheers
luigi