K 10
svn:author
V 2
bz
K 8
svn:date
V 27
2019-10-23T23:01:18.637640Z
K 7
svn:log
V 755
frag6: replace KAME hand-rolled queues with queue(9) TAILQs

Remove the KAME custom circular queue for fragments and fragmented packets
and replace them with a standard TAILQ.
This make the code a lot more understandable and maintainable and removes
further hand-rolled code from the the tree using a standard interface instead.

Hide the still public structures under #ifdef _KERNEL as there is no
use for them in user space.
The naming is a bit confusing now as struct ip6q and the ip6q[] buckets
array are not the same anymore;  sadly struct ip6q is also used by the
MAC framework and we cannot rename it.

Submitted by:	jtl (initally)
MFC after:	3 weeks
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D16847 (jtl's original)

END