K 10
svn:author
V 5
sephe
K 8
svn:date
V 27
2016-07-29T06:22:11.548275Z
K 7
svn:log
V 307
hyperv/storvsc: Use busdma(9) and enable PIM_UNMAPPED by default.

The UNMAPPED I/O greatly improves userland direct disk I/O performance
by 35% ~ 135%.

Submitted by:	Hongjiang Zhang <honzhan microsoft com>
MFC after:	1 week
Sponsored by:	Microsoft
Differential Revision:	https://reviews.freebsd.org/D7195

END