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fatm — device driver for Fore PCA200E ATM interfaces
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):
Returns a device specific statistic list of uint32_t statistic
Returns a list of uint32_t with internal driver statistics.
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
(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
fatm0: <FORE PCA200E> mem 0xd5800000-0xd59fffff irq 9 at device 9.0 on pci0
natm(4), natmip(4), utopia(4)
Harti Brandt ⟨harti@FreeBSD.org⟩
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.