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1.\"
2.\" Copyright (c) 2001-2003
3.\" Fraunhofer Institute for Open Communication Systems (FhG Fokus).
4.\" All rights reserved.
5.\"
6.\" Redistribution and use in source and binary forms, with or without
7.\" modification, are permitted provided that the following conditions
8.\" are met:

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21.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25.\" SUCH DAMAGE.
26.\"
27.\" Author: Hartmut Brandt <harti@freebsd.org>
28.\"
29.\" $FreeBSD: head/share/man/man4/fatm.4 131530 2004-07-03 18:29:24Z ru $
30.\"
31.\" fatm(4) man page
32.\"
33.Dd May 15, 2003
34.Dt FATM 4
35.Os FreeBSD
36.Sh NAME
37.Nm fatm

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45The
46.Nm
47device driver supports the FORE (now Marconi) PCA200E ATM interface cards.
48The driver interfaces with the
49.Xr natm 4
50framework,
51.Xr netgraph 4
52and HARP.
53It provides only PVC services.
54Signalling, ATMARP, ILMI and other
55higher layer protocols are implemented using
56.Xr netgraph 4
57or HARP.
58.Pp
59For configuring the card for IP see
60.Xr natmip 4 .
61The following sysctls are recognized by the driver additionally to those
62handled by

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67.Dv uint32_t
68statistic counters.
69.It Cm hw.atm.fatmN.istats
70Returns a list of
71.Dv uint32_t
72with internal driver statistics.
73.It Cm hw.atm.fatmN.retry_tx
74If this is set packets are stuffed back into the interface's send queue when
75the cards transmit queue is found to be full.
76They are transmitted later.
77If this is not set the packets are dropped.
78It may be useful to set this
79if only UBR traffic is sent.
80.It Cm hw.atm.fatmN.debug
81.Em (only if debugging enabled)
82These are debugging flags.
83See
84.Fn if_fatmvar.h
85for the possible flags.
86.El
87.Pp
88The driver supports the media options
89.Ar sdh ,
90.Ar noscramb
91and

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96.Bd -literal
97fatm0: <FORE PCA200E> mem 0xd5800000-0xd59fffff irq 9 at device 9.0 on pci0
98.Ed
99.Sh SEE ALSO
100.Xr natm 4 ,
101.Xr natmip 4 ,
102.Xr utopia 4
103.Sh BUGS
104These cards can CBR shape a single VCC only.
105It is currently possible to
106request more than one CBR connection.
107In this case all the timing will be
108wrong.
109See
110.Xr hatm 4
111for a better card.
112.Sh AUTHORS
113.An Harti Brandt Aq harti@freebsd.org .