K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-12-21T03:09:07.451342Z
K 7
svn:log
V 328
hyperv/storvsc: The max channel in PDU actually means the max sub-chans.

Use proper name for local variables. PDU fields' name was not changed yet.
While I'm here, make # of usable channels tunable. This eases further
testing.

MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D8851

END