svn commit: r247908 - stable/8/share/man/man4
Bryan Venteicher
bryanv at FreeBSD.org
Thu Mar 7 07:02:33 UTC 2013
Author: bryanv
Date: Thu Mar 7 07:02:31 2013
New Revision: 247908
URL: http://svnweb.freebsd.org/changeset/base/247908
Log:
MFC r227652,r230450,r230461,r241470
Include/update the VirtIO man pages.
-r227652: Initial import
-r230450: General cleanup
-r230461: Connect VirtIO-related manpages to the build
-r241470: Virtio SCSI driver man page
Approved by: grehan (mentor)
Added:
stable/8/share/man/man4/virtio.4
- copied, changed from r227652, head/share/man/man4/virtio.4
stable/8/share/man/man4/virtio_balloon.4
- copied, changed from r227652, head/share/man/man4/virtio_balloon.4
stable/8/share/man/man4/virtio_blk.4
- copied, changed from r227652, head/share/man/man4/virtio_blk.4
stable/8/share/man/man4/virtio_scsi.4
- copied unchanged from r241470, head/share/man/man4/virtio_scsi.4
stable/8/share/man/man4/vtnet.4
- copied, changed from r227652, head/share/man/man4/vtnet.4
Modified:
stable/8/share/man/man4/Makefile
Directory Properties:
stable/8/share/man/man4/ (props changed)
Modified: stable/8/share/man/man4/Makefile
==============================================================================
--- stable/8/share/man/man4/Makefile Thu Mar 7 06:53:25 2013 (r247907)
+++ stable/8/share/man/man4/Makefile Thu Mar 7 07:02:31 2013 (r247908)
@@ -490,11 +490,16 @@ MAN= aac.4 \
viapm.4 \
${_viawd.4} \
vinum.4 \
+ ${_virtio.4} \
+ ${_virtio_balloon.4} \
+ ${_virtio_blk.4} \
+ ${_virtio_scsi.4} \
vkbd.4 \
vlan.4 \
vpo.4 \
vr.4 \
vte.4 \
+ ${_vtnet.4} \
watchdog.4 \
wb.4 \
wi.4 \
@@ -642,6 +647,7 @@ MLINKS+=vge.4 if_vge.4
MLINKS+=vlan.4 if_vlan.4
MLINKS+=vpo.4 imm.4
MLINKS+=vr.4 if_vr.4
+MLINKS+=${_vtnet.4} ${_if_vtnet.4}
MLINKS+=watchdog.4 SW_WATCHDOG.4
MLINKS+=wb.4 if_wb.4
MLINKS+=wi.4 if_wi.4
@@ -680,6 +686,7 @@ _if_nfe.4= if_nfe.4
_if_nve.4= if_nve.4
_if_nxge.4= if_nxge.4
_if_urtw.4= if_urtw.4
+_if_vtnet.4= if_vtnet.4
_if_wpi.4= if_wpi.4
_ipmi.4= ipmi.4
_io.4= io.4
@@ -691,6 +698,11 @@ _nfsmb.4= nfsmb.4
_nve.4= nve.4
_nvram.4= nvram.4
_nxge.4= nxge.4
+_virtio.4= virtio.4
+_virtio_balloon.4=virtio_balloon.4
+_virtio_blk.4= virtio_blk.4
+_virtio_scsi.4= virtio_scsi.4
+_vtnet.4= vtnet.4
_padlock.4= padlock.4
_rr232x.4= rr232x.4
_speaker.4= speaker.4
Copied and modified: stable/8/share/man/man4/virtio.4 (from r227652, head/share/man/man4/virtio.4)
==============================================================================
--- head/share/man/man4/virtio.4 Fri Nov 18 05:43:43 2011 (r227652, copy source)
+++ stable/8/share/man/man4/virtio.4 Thu Mar 7 07:02:31 2013 (r247908)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 4, 2011
+.Dd January 22, 2012
.Dt VIRTIO 4
.Os
.Sh NAME
@@ -48,29 +48,34 @@ virtio_pci_load="YES"
.Sh DESCRIPTION
VirtIO is a specification for para-virtualized I/O in a virtual machine (VM).
Traditionally, the hypervisor emulated real devices such as an Ethernet
-interface or disk controller to provide the VM with I/O. This emulation is
-often inefficient.
+interface or disk controller to provide the VM with I/O.
+This emulation is often inefficient.
.Pp
VirtIO defines an interface for efficient I/O between the hypervisor and VM.
-The
-.Xr virtio 4
+The
+.Xr virtio 4
module provides a shared memory transport called a virtqueue.
The
.Xr virtio_pci 4
device driver represents an emulated PCI device that the hypervisor makes
-available to the VM. This device provides the probing, configuration, and
-interrupt notifications need to interact with the hypervisor.
+available to the VM.
+This device provides the probing, configuration, and
+interrupt notifications needed to interact with the hypervisor.
.Fx
supports the following VirtIO devices:
.Bl -hang -offset indent -width xxxxxxxx
.It Nm Ethernet
An emulated Ethernet device is provided by the
-.Xr if_vtnet 4
+.Xr vtnet 4
device driver.
.It Nm Block
An emulated disk controller is provided by the
.Xr virtio_blk 4
device driver.
+.It Nm SCSI
+An emulated SCSI HBA is provided by the
+.Xr virtio_scsi 4
+device driver.
.It Nm Balloon
A pseudo-device to allow the VM to release memory back to the hypervisor is
provided by the
@@ -78,9 +83,10 @@ provided by the
device driver.
.El
.Sh SEE ALSO
-.Xr if_vtnet 4 ,
+.Xr virtio_balloon 4 ,
.Xr virtio_blk 4 ,
-.Xr virtio_balloon 4
+.Xr virtio_scsi 4 ,
+.Xr vtnet 4
.Sh HISTORY
Support for VirtIO first appeared in
.Fx 9.0 .
Copied and modified: stable/8/share/man/man4/virtio_balloon.4 (from r227652, head/share/man/man4/virtio_balloon.4)
==============================================================================
--- head/share/man/man4/virtio_balloon.4 Fri Nov 18 05:43:43 2011 (r227652, copy source)
+++ stable/8/share/man/man4/virtio_balloon.4 Thu Mar 7 07:02:31 2013 (r247908)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 4, 2011
+.Dd January 22, 2012
.Dt VIRTIO_BALLOON 4
.Os
.Sh NAME
@@ -51,8 +51,8 @@ device driver provides support for VirtI
.Pp
The memory balloon allows the guest to, at the request of the
hypervisor, return memory allocated to the hypervisor so it can
-be made available to other guests. The hypervisor can later
-signal the balloon to return the memory.
+be made available to other guests.
+The hypervisor can later signal the balloon to return the memory.
.Sh SEE ALSO
.Xr virtio 4
.Sh HISTORY
Copied and modified: stable/8/share/man/man4/virtio_blk.4 (from r227652, head/share/man/man4/virtio_blk.4)
==============================================================================
--- head/share/man/man4/virtio_blk.4 Fri Nov 18 05:43:43 2011 (r227652, copy source)
+++ stable/8/share/man/man4/virtio_blk.4 Thu Mar 7 07:02:31 2013 (r247908)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 4, 2011
+.Dd January 22, 2012
.Dt VIRTIO_BLK 4
.Os
.Sh NAME
@@ -48,7 +48,6 @@ virtio_blk_load="YES"
The
.Nm
device driver provides support for VirtIO block devices.
-.Pp
.Sh LOADER TUNABLES
Tunables can be set at the
.Xr loader 8
@@ -57,7 +56,8 @@ prompt before booting the kernel or stor
.Bl -tag -width "xxxxxx"
.It Va hw.vtblk.no_ident
This tunable disables retrieving the device identification string
-from the hypervisor. The default value is 0.
+from the hypervisor.
+The default value is 0.
.El
.Sh SEE ALSO
.Xr virtio 4
Copied: stable/8/share/man/man4/virtio_scsi.4 (from r241470, head/share/man/man4/virtio_scsi.4)
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ stable/8/share/man/man4/virtio_scsi.4 Thu Mar 7 07:02:31 2013 (r247908, copy of r241470, head/share/man/man4/virtio_scsi.4)
@@ -0,0 +1,92 @@
+.\" Copyright (c) 2012 Bryan Venteicher
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd June 24, 2012
+.Dt VIRTIO_SCSI 4
+.Os
+.Sh NAME
+.Nm virtio_scsi
+.Nd VirtIO SCSI driver
+.Sh SYNOPSIS
+To compile this driver into the kernel,
+place the following lines in your
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device virtio_scsi"
+.Ed
+.Pp
+Alternatively, to load the driver as a
+module at boot time, place the following line in
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+virtio_scsi_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+device driver provides support for VirtIO SCSI devices.
+.Sh LOADER TUNABLES
+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"
+.It Va hw.vtscsi.bus_reset_disable
+In the initial QEMU release with VirtIO SCSI support, in-flight
+operations were not aborted when stopping the device, rendering
+bus reset ineffective. This tunable disables attempts to issue
+reset bus commands. The default value is 1.
+.El
+.Sh DEBUGGING
+To enable debugging prints from the
+.Nm
+driver, set the
+.Bd -literal -offset indent
+hw.vtscsi.X.debug_level
+.Ed
+.Pp
+variable, where X is the adapter number, either in
+.Xr loader.conf 5
+or via
+.Xr sysctl 8 .
+The following bits have the described effects:
+.Bl -tag -width 6n -offset indent
+.It 0x01
+Enable informational prints.
+.It 0x02
+Enable prints for driver errors.
+.It 0x04
+Enable tracing prints.
+.El
+.Sh SEE ALSO
+.Xr virtio 4
+.Sh HISTORY
+The
+.Nm
+driver was written by
+.An Bryan Venteicher Aq bryanv at daemoninthecloset.org .
+It first appeared in
+.Fx 10.0 .
Copied and modified: stable/8/share/man/man4/vtnet.4 (from r227652, head/share/man/man4/vtnet.4)
==============================================================================
--- head/share/man/man4/vtnet.4 Fri Nov 18 05:43:43 2011 (r227652, copy source)
+++ stable/8/share/man/man4/vtnet.4 Thu Mar 7 07:02:31 2013 (r247908)
@@ -24,7 +24,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 4, 2011
+.Dd January 22, 2012
.Dt VTNET 4
.Os
.Sh NAME
@@ -62,7 +62,6 @@ utility configures the adapter to receiv
.Pp
For more information on configuring this device, see
.Xr ifconfig 8 .
-.El
.Sh LOADER TUNABLES
Tunables can be set at the
.Xr loader 8
@@ -70,19 +69,21 @@ prompt before booting the kernel or stor
.Xr loader.conf 5 .
.Bl -tag -width "xxxxxx"
.It Va hw.vtnet.csum_disable
-This tunable disables receive and send checksum offload. The default
-value is 0.
+This tunable disables receive and send checksum offload.
+The default value is 0.
.It Va hw.vtnet.tso_disable
-This tunable disables TSO. The default value is 0.
+This tunable disables TSO.
+The default value is 0.
.It Va hw.vtnet.lro_disable
-This tunable disables LRO. The default value is 0.
+This tunable disables LRO.
+The default value is 0.
.El
.Sh SEE ALSO
.Xr arp 4 ,
.Xr netintro 4 ,
.Xr ng_ether 4 ,
-.Xr vlan 4 ,
.Xr virtio 4 ,
+.Xr vlan 4 ,
.Xr ifconfig 8
.Sh HISTORY
The
More information about the svn-src-all
mailing list