[pf4freebsd] patches for ALTQ on 5.1R

[Pyun YongHyeon]

Hello All,

 There is a patch for Dennis Berger's ALTQ.
This patch was posted to Dennis and he published the patch
on this URL. His next release will include this patch.

http://www.nipsi.de/FreeBSD/altqfixes.0.1

Above patch solves Dennis' IF_POLL macro problem. It also
touches wi(4) driver and provide a new ALTQ driver tun(4).
Beware! Both wi(4) and tun(4) driver was not tested at all.
So you may get panics!(I just have fxp(4))
I hope the tun(4) driver can be used to experiment
"prioritizing empty TCP acks".

Thank you.

Regards,
-- 
Pyun YongHyeon <http://www.kr.freebsd.org/~yongari>