Update nvme(4) and nvd(4) man pages to clarify the differences between

their respective device nodes.

Sponsored by:	Intel
MFC after:	3 days

share/man/man4/nvd.4

@@ -1,5 +1,5 @@
 .\"
-.\" Copyright (c) 2012-2013 Intel Corporation
+.\" Copyright (c) 2012-2014 Intel Corporation
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -33,7 +33,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 9, 2013
+.Dd March 18, 2014
 .Dt NVD 4
 .Os
 .Sh NAME
@@ -62,8 +62,22 @@ It depends on the
 .Xr nvme 4
 driver for notification of existing NVMe namespaces and submission of NVM
 I/O commands.
+.Pp
+Device nodes from the
+.Nm
+driver will have the format /dev/nvdX and are
+.Xr GEOM 4
+disks which can be partitioned by
+.Xr geom 8 .
+Note that device nodes from the
+.Xr nvme 4
+driver are not
+.Xr GEOM 4
+disks and cannot be partitioned.
 .Sh SEE ALSO
+.Xr GEOM 4 ,
 .Xr nvme 4 ,
+.Xr geom 8 ,
 .Xr nvmecontrol 8 ,
 .Xr disk 9
 .Sh HISTORY

share/man/man4/nvme.4

@@ -1,5 +1,5 @@
 .\"
-.\" Copyright (c) 2012-2013 Intel Corporation
+.\" Copyright (c) 2012-2014 Intel Corporation
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -33,7 +33,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 9, 2013
+.Dd March 18, 2014
 .Dt NVME 4
 .Os
 .Sh NAME
@@ -54,7 +54,8 @@ nvme_load="YES"
 .Pp
 Most users will also want to enable
 .Xr nvd 4
-to surface NVM Express namespaces as disk devices.
+to surface NVM Express namespaces as disk devices which can be
+partitioned.
 Note that in NVM Express terms, a namespace is roughly equivalent to a
 SCSI LUN.
 .Sh DESCRIPTION
@@ -73,11 +74,13 @@ API for registering NVMe namespace consumers such as
 API for submitting NVM commands to namespaces
 .It
 Ioctls for controller and namespace configuration and management
+.El
 .Pp
+The
 .Nm
-creates controller devices in the format
+driver creates controller device nodes in the format
 .Pa /dev/nvmeX
-and namespace devices in
+and namespace device nodes in
 the format
 .Pa /dev/nvmeXnsY .
 Note that the NVM Express specification starts numbering namespaces at 1,