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.