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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 inter-
     face 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)

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.

AUTHORS

     Harti Brandt <harti@FreeBSD.org>

FreeBSD 5.4			 May 15, 2003			   FreeBSD 5.4

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