netmap(4) transparent mode

[Franco Fichtner]

Hi,

here's a revised version of a patch to address a couple
of issues with the transparent mode of netmap(4), which
doesn't work in current and older stable branches:

https://github.com/fichtner/freebsd/commit/b00580b03bf9dd847e4238dc0faabb349b1852a1.patch

Posting this to a wider audience now, since I have no
feedback from the maintainer yet.  Luigi is CC'ed again.


Cheers,
Franco