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LEARN ABOUT FREEBSD

fatm

FATM(4) 						   BSD Kernel Interfaces Manual 						   FATM(4)

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.

BSD
								   May 15, 2003 							       BSD