149 lines
4.4 KiB
Groff
149 lines
4.4 KiB
Groff
.\" $NetBSD: pcictl.8,v 1.20 2019/11/30 02:47:14 riastradh Exp $
|
|
.\"
|
|
.\" Copyright 2001 Wasabi Systems, Inc.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Written by Jason R. Thorpe for Wasabi Systems, Inc.
|
|
.\"
|
|
.\" 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.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed for the NetBSD Project by
|
|
.\" Wasabi Systems, Inc.
|
|
.\" 4. The name of Wasabi Systems, Inc. may not be used to endorse
|
|
.\" or promote products derived from this software without specific prior
|
|
.\" written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
|
|
.\" 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.
|
|
.\"
|
|
.Dd September 23, 2016
|
|
.Dt PCICTL 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm pcictl
|
|
.Nd a program to manipulate the PCI bus
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Ar pcibus
|
|
.Ar command
|
|
.Oo
|
|
.Ar arg Oo ...
|
|
.Oc
|
|
.Oc
|
|
.Sh DESCRIPTION
|
|
.Nm
|
|
allows a user or system administrator to access various resources
|
|
on a PCI bus.
|
|
.Pp
|
|
The following commands are available:
|
|
.Pp
|
|
.Cm list
|
|
.Op Fl Nn
|
|
.Op Fl b Ar bus
|
|
.Op Fl d Ar device
|
|
.Op Fl f Ar function
|
|
.Pp
|
|
List the devices in the PCI domain, either as names or, if
|
|
.Fl n
|
|
is given, as numbers.
|
|
The bus, device, and function
|
|
numbers may be specified by flags.
|
|
Any locator not specified defaults
|
|
to a wildcard, or may be explicitly wildcarded by specifying
|
|
.Dq any .
|
|
If
|
|
.Fl N
|
|
is given, the driver name for this PCI device will be listed
|
|
if any driver is attached.
|
|
.Pp
|
|
.Cm dump
|
|
.Op Fl b Ar bus
|
|
.Fl d Ar device
|
|
.Op Fl f Ar function
|
|
.Pp
|
|
Dump the PCI configuration space for the specified device located
|
|
at the specified bus, device, and function.
|
|
If the bus is not specified, it defaults to the bus number of the
|
|
PCI bus specified on the command line.
|
|
If the function is not specified, it defaults to 0.
|
|
.Pp
|
|
.Cm read
|
|
.Op Fl b Ar bus
|
|
.Fl d Ar device
|
|
.Op Fl f Ar function
|
|
.Ar reg
|
|
.Pp
|
|
Read the specified 32-bit aligned PCI configuration register and print
|
|
it in hexadecimal to standard output.
|
|
If the bus is not specified, it defaults to the bus number of the
|
|
PCI bus specified on the command line.
|
|
If the function is not specified, it defaults to 0.
|
|
.Pp
|
|
.Sy WARNING :
|
|
.Nm
|
|
.Cm read
|
|
is a dangerous command that can damage hardware and panic the operating
|
|
system, even though it appears to be a harmless read-only operation.
|
|
It is meant as a diagnostic tool for experiments or to debug device
|
|
drivers.
|
|
Do not use it as a substitute for a device driver!
|
|
.Pp
|
|
.Cm write
|
|
.Op Fl b Ar bus
|
|
.Fl d Ar device
|
|
.Op Fl f Ar function
|
|
.Ar reg
|
|
.Ar value
|
|
.Pp
|
|
Write the specified value to the specified 32-bit aligned PCI
|
|
configuration register.
|
|
If the bus is not specified, it defaults to the bus number of the
|
|
PCI bus specified on the command line.
|
|
If the function is not specified, it defaults to 0.
|
|
.Pp
|
|
.Sy WARNING :
|
|
.Nm
|
|
.Cm write
|
|
is a dangerous command that can damage hardware and panic the operating
|
|
system.
|
|
It is meant as a diagnostic tool for experiments or to debug device
|
|
drivers.
|
|
Do not use it as a substitute for a device driver!
|
|
.Sh FILES
|
|
.Pa /dev/pci*
|
|
- PCI bus device nodes
|
|
.Sh EXAMPLES
|
|
This shows all PCI devices on the system:
|
|
.Pp
|
|
.Dl pcictl pci0 list
|
|
.Pp
|
|
This shows all PCI devices on the system, including attached drivers:
|
|
.Pp
|
|
.Dl pcictl pci0 list -N
|
|
.Sh SEE ALSO
|
|
.Xr pci 3 ,
|
|
.Xr pci 4 ,
|
|
.Xr drvctl 8
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command first appeared in
|
|
.Nx 1.6 .
|