91 lines
3.1 KiB
Groff
91 lines
3.1 KiB
Groff
.\" Copyright (c) 2010 Weongyo Jeong
|
|
.\" 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 January 8, 2010
|
|
.Dt SIBA 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm siba
|
|
.Nd Sonic Inc. Silicon Backplane 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 siba"
|
|
.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
|
|
siba_load="YES"
|
|
.Ed
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver supports the Sonic Inc. Silicon Backplane, the interblock
|
|
communications architecture that can be found in most Broadcom
|
|
wireless NICs.
|
|
.Pp
|
|
A bus connects all of the Silicon Backplane's functional blocks.
|
|
These functional blocks, known as cores, use the Open Core Protocol
|
|
(OCP) interface to communicate with agents attached to the Silicon
|
|
Backplane.
|
|
.Pp
|
|
Each NIC uses a chip from the same chip family.
|
|
Each member of the family contains a different set of cores, but
|
|
shares basic architectural features such as address space definition,
|
|
interrupt and error architecture, and backplane register definitions.
|
|
.Pp
|
|
Each core can have an initiator agent that passes read and write
|
|
requests onto the system backplane and a target agent that returns
|
|
responses to those requests.
|
|
Not all cores contain both an initiator and a target agent.
|
|
Initiator agents are present in cores that contain
|
|
host interfaces (PCI, PCMCIA), embedded processors (MIPS),
|
|
or DMA processors associated with communications cores.
|
|
.Pp
|
|
All cores other than PCMCIA have a target agent.
|
|
.Sh SEE ALSO
|
|
.Xr bwn 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
device driver first appeared in
|
|
.Fx 8.0 .
|
|
.Sh AUTHORS
|
|
.An -nosplit
|
|
The
|
|
.Nm
|
|
driver was written by
|
|
.An Bruce M. Simpson
|
|
.Aq bms@FreeBSD.org
|
|
and
|
|
.An Weongyo Jeong
|
|
.Aq weongyo@FreeBSD.org .
|
|
.Sh CAVEATS
|
|
Host mode is not supported at this moment.
|