NAME

       siba — Sonic Inc. Silicon Backplane driver

SYNOPSIS

       To compile this driver into the kernel, place the following lines in your kernel configuration file:

             device siba

       Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

             siba_load="YES"

DESCRIPTION

       The  siba  driver  supports  the Sonic Inc. Silicon Backplane, the interblock communications architecture
       that can be found in most Broadcom wireless NICs.

       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.

       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.

       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.

       All cores other than PCMCIA have a target agent.

SEE ALSO

       bwn(4)

HISTORY

       The siba device driver first appeared in FreeBSD 8.0.

AUTHORS

       The   siba   driver   was   written   by   Bruce   M.   Simpson   ⟨bms@FreeBSD.org⟩   and  Weongyo  Jeong
       ⟨weongyo@FreeBSD.org⟩.

CAVEATS

       Host mode is not supported at this moment.

Debian                                           January 8, 2010                                         SIBA(4)