K 10
svn:author
V 3
mav
K 8
svn:date
V 27
2018-02-01T16:40:37.111387Z
K 7
svn:log
V 352
MFC r322036 (by imp):
Make nvd vs nda choice boot-time rather than build-time

Introduce hw.nvme.use_nvd tunable. This tunable allows both nvd and
nda to be installed in the kernel, while allowing only one of them to
create devices. This is an all-or-nothing setting, and you can't
change it after boot-time. However, it will allow easier A/B testing.

END