K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2017-01-26T20:49:19.259557Z
K 7
svn:log
V 270
MFC r310778, r310782: Improve use of I/O's private area.

 - Since I/Os are allocates from per-port pools, make allocations store
pointer to CTL softc there, and use it where needed instead of global.
 - Created bunch of helper macros to access LUN, port and CTL softc.

END