NAME

     fatm — device driver for Fore PCA200E ATM interfaces

SYNOPSIS

     device fatm
     device utopia
     device atm

     options NATM

DESCRIPTION

     The fatm device driver supports the FORE (now Marconi) PCA200E ATM interface cards.  The
     driver interfaces with the natm(4) framework, netgraph(4) and HARP.  It provides only PVC
     services.  Signalling, ATMARP, ILMI and other higher layer protocols are implemented using
     netgraph(4) or HARP.

     For configuring the card for IP see natmip(4).  The following sysctls are recognized by the
     driver additionally to those handled by utopia(4):

     hw.atm.fatmN.stats
             Returns a device specific statistic list of uint32_t statistic counters.

     hw.atm.fatmN.istats
             Returns a list of uint32_t with internal driver statistics.

     hw.atm.fatmN.retry_tx
             If this is set packets are stuffed back into the interface's send queue when the
             cards transmit queue is found to be full.  They are transmitted later.  If this is
             not set the packets are dropped.  It may be useful to set this if only UBR traffic
             is sent.

     hw.atm.fatmN.debug
             (Only if debugging enabled.)  These are debugging flags.  See
             src/sys/dev/fatm/if_fatmvar.h for the possible flags.

     The driver supports the media options sdh, noscramb and unassigned (see utopia(4)).

DIAGNOSTICS

     fatm0: <FORE PCA200E> mem 0xd5800000-0xd59fffff irq 9 at device 9.0 on pci0

SEE ALSO

     natm(4), natmip(4), utopia(4)

AUTHORS

     Harti Brandt <harti@FreeBSD.org>

BUGS

     These cards can CBR shape a single VCC only.  It is currently possible to request more than
     one CBR connection.  In this case all the timing will be wrong.  See hatm(4) for a better
     card.