1.\" Copyright (c) 2010 Weongyo Jeong 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd September 13, 2017 26.Dt SIBA 4 27.Os 28.Sh NAME 29.Nm siba 30.Nd Sonic Inc. Silicon Backplane driver 31.Sh SYNOPSIS 32To compile this driver into the kernel, add the following lines to the 33kernel configuration file: 34.Bd -ragged -offset indent 35.Cd "device bhnd" 36.Cd "device siba" 37.Ed 38.Pp 39To load the driver as a module at boot, add this line to 40.Xr loader.conf 5 : 41.Bd -literal -offset indent 42siba_load="YES" 43.Ed 44.Sh DESCRIPTION 45The 46.Nm 47driver provides 48.Xr bhnd 4 49support for devices based on the Sonic Inc. Silicon Backplane, an 50interblock communications architecture found in earlier Broadcom Home 51Networking Division wireless chipsets and embedded systems. 52.Pp 53A common interconnect connects all of the Silicon Backplane's functional 54blocks. 55These functional blocks, known as cores, use the Open Core Protocol 56(OCP) interface to communicate with agents attached to the Silicon 57Backplane. 58.Pp 59Each core can have an initiator agent that passes read and write 60requests onto the system backplane and a target agent that returns 61responses to those requests. 62Not all cores contain both an initiator and a target agent. 63Initiator agents are present in cores that contain 64host interfaces (PCI, PCMCIA), embedded processors (MIPS), 65or DMA processors associated with communications cores. 66.Sh SEE ALSO 67.Xr bcma 4 , 68.Xr bhnd 4 , 69.Xr intro 4 70.Sh HISTORY 71The 72.Nm 73device driver first appeared in 74.Fx 8.0 . 75The driver was rewritten for 76.Fx 11.0 77to support the common Broadcom 78.Xr bhnd 4 79bus interface. 80.Sh AUTHORS 81.An -nosplit 82The 83.Nm 84driver was originally written by 85.An Bruce M. Simpson Aq Mt bms@FreeBSD.org 86and 87.An Weongyo Jeong Aq Mt weongyo@FreeBSD.org . 88The driver was rewritten for 89.Fx 11.0 90by 91.An Landon Fuller Aq Mt landonf@FreeBSD.org . 92