K 10
svn:author
V 3
cem
K 8
svn:date
V 27
2015-11-11T18:55:34.945841Z
K 7
svn:log
V 367
if_ntb: Transport link cleanup needs to be on a taskqueue

Because it can sleep drainking link work callout(s).  Linux (dual
BSD/GPL driver) does something very similar.

At the same time, switch the NTB CTX lock to a non-spin mutex, because
the taskqueue_swi lock can't be taken after a spin mutex.

Suggested by:	Witness
Sponsored by:	EMC / Isilon Storage Division

END