svn commit: r253180 - stable/9/share/man/man4

[Bryan Venteicher]

Author: bryanv
Date: Thu Jul 11 03:49:14 2013
New Revision: 253180
URL: http://svnweb.freebsd.org/changeset/base/253180

Log:
  MFC VirtIO r252703,r252707
  
  r252703: Document new cache write mode tunables/sysctl
  r252707: Minor cleanup and use my FreeBSD.org email
  
  Also change the release where first appeared closer to reality.

Modified:
  stable/9/share/man/man4/virtio.4
  stable/9/share/man/man4/virtio_balloon.4
  stable/9/share/man/man4/virtio_blk.4
  stable/9/share/man/man4/virtio_scsi.4
  stable/9/share/man/man4/vtnet.4
Directory Properties:
  stable/9/share/man/man4/   (props changed)

Modified: stable/9/share/man/man4/virtio.4
==============================================================================
--- stable/9/share/man/man4/virtio.4	Thu Jul 11 03:44:06 2013	(r253179)
+++ stable/9/share/man/man4/virtio.4	Thu Jul 11 03:49:14 2013	(r253180)
@@ -53,10 +53,10 @@ This emulation is often inefficient.
 .Pp
 VirtIO defines an interface for efficient I/O between the hypervisor and VM.
 The
-.Xr virtio 4
+.Nm
 module provides a shared memory transport called a virtqueue.
 The
-.Xr virtio_pci 4
+.Xr virtio_pci
 device driver represents an emulated PCI device that the hypervisor makes
 available to the VM.
 This device provides the probing, configuration, and 
@@ -89,9 +89,9 @@ device driver.
 .Xr vtnet 4
 .Sh HISTORY
 Support for VirtIO first appeared in
-.Fx 9.0 .
+.Fx 9.2 .
 .Sh AUTHORS
 .An -nosplit
 .Fx
 support for VirtIO was first added by
-.An Bryan Venteicher Aq bryanv at daemoninthecloset.org .
+.An Bryan Venteicher Aq bryanv at FreeBSD.org .

Modified: stable/9/share/man/man4/virtio_balloon.4
==============================================================================
--- stable/9/share/man/man4/virtio_balloon.4	Thu Jul 11 03:44:06 2013	(r253179)
+++ stable/9/share/man/man4/virtio_balloon.4	Thu Jul 11 03:49:14 2013	(r253180)
@@ -59,6 +59,6 @@ The hypervisor can later signal the ball
 The
 .Nm
 driver was written by
-.An Bryan Venteicher Aq bryanv at daemoninthecloset.org .
+.An Bryan Venteicher Aq bryanv at FreeBSD.org .
 It first appeared in
-.Fx 9.0 .
+.Fx 9.2 .

Modified: stable/9/share/man/man4/virtio_blk.4
==============================================================================
--- stable/9/share/man/man4/virtio_blk.4	Thu Jul 11 03:44:06 2013	(r253179)
+++ stable/9/share/man/man4/virtio_blk.4	Thu Jul 11 03:49:14 2013	(r253180)
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd January 22, 2012
+.Dd July 2, 2013
 .Dt VIRTIO_BLK 4
 .Os
 .Sh NAME
@@ -53,11 +53,33 @@ Tunables can be set at the
 .Xr loader 8
 prompt before booting the kernel or stored in
 .Xr loader.conf 5 .
-.Bl -tag -width "xxxxxx"
+.Bl -tag -width indent
 .It Va hw.vtblk.no_ident
-This tunable disables retrieving the device identification string
-from the hypervisor.
+.It Va hw.vtblk. Ns Ar X Ns Va .no_ident
+.Pp
+These tunables disable retrieving the device identification string
+from the hypervisor either globally or per-device.
 The default value is 0.
+.It Va hw.vtblk.writecache_mode
+.It Va hw.vtblk. Ns Ar X Ns Va .writecache_mode
+.Pp
+These tunables determine the write cache mode globally or per-device.
+The mode can changed only if the ConfigWCE feature is negotiated.
+Set to 0 for writethrough mode, 1 for writeback mode, and -1 to leave
+it as-is.
+The default value is to leave as-is.
+.El
+.Sh SYSCTL VARIABLES
+The following variables are available as
+.Xr sysctl 8
+variables.
+.Bl -tag -width indent
+.It Va dev.vtblk. Ns Ar X Ns Va .writecache_mode
+.Pp
+The write cache mode of the device can be either writethrough (0) or
+writeback (1).
+If the ConfigWCE feature is negotiated, the write cache mode can
+be toggled between writethrough and writeback.
 .El
 .Sh SEE ALSO
 .Xr virtio 4
@@ -65,6 +87,6 @@ The default value is 0.
 The
 .Nm
 driver was written by
-.An Bryan Venteicher Aq bryanv at daemoninthecloset.org .
+.An Bryan Venteicher Aq bryanv at FreeBSD.org .
 It first appeared in
-.Fx 9.0 .
+.Fx 9.2 .

Modified: stable/9/share/man/man4/virtio_scsi.4
==============================================================================
--- stable/9/share/man/man4/virtio_scsi.4	Thu Jul 11 03:44:06 2013	(r253179)
+++ stable/9/share/man/man4/virtio_scsi.4	Thu Jul 11 03:49:14 2013	(r253180)
@@ -87,6 +87,6 @@ Enable tracing prints.
 The
 .Nm
 driver was written by
-.An Bryan Venteicher Aq bryanv at daemoninthecloset.org .
+.An Bryan Venteicher Aq bryanv at FreeBSD.org .
 It first appeared in
-.Fx 10.0 .
+.Fx 9.2 .

Modified: stable/9/share/man/man4/vtnet.4
==============================================================================
--- stable/9/share/man/man4/vtnet.4	Thu Jul 11 03:44:06 2013	(r253179)
+++ stable/9/share/man/man4/vtnet.4	Thu Jul 11 03:49:14 2013	(r253180)
@@ -89,9 +89,9 @@ The default value is 0.
 The
 .Nm
 driver was written by
-.An Bryan Venteicher Aq bryanv at daemoninthecloset.org .
+.An Bryan Venteicher Aq bryanv at FreeBSD.org .
 It first appeared in
-.Fx 9.0 .
+.Fx 9.2 .
 .Sh CAVEATS
 The
 .Nm