K 10
svn:author
V 2
kp
K 8
svn:date
V 27
2021-11-23T16:13:13.210799Z
K 7
svn:log
V 477
if_epair: rework

Rework if_epair(4) to no longer use netisr and dpcpu.
Instead use mbufq and swi_net.
This simplifies the code and seems to make it work better and
no longer hang.

Work largely by bz@, with minor tweaks by kp@.

Reviewed by:	bz, kp
MFC after:	3 weeks
Differential Revision:	https://reviews.freebsd.org/D31077

(cherry picked from commit 3dd5760aa5f876f8a3f0735afeebdf9ee414e1f5)

Git Hash:   7c2b681b33fc78ed06c7e9e65eeebb2ab5420586
Git Author: bz@FreeBSD.org
END