Technical data

SunOS 5.5 Devices nfe(7D)

DL_PROMISC_MULTI ﬂag set, this enables/disables reception of all multicast group

addresses. The effect of each is always on a per-stream basis and independentof the

other sap and physical level conﬁgurations on this stream or other streams.

The DL_PHYS_ADDR_REQ primitive returns the 6-octet Ethernet address currently asso-

ciated (attached) to the stream in theDL_PHYS_ADDR_ACK primitive. This primitive is

valid only in states following a successful DL_ATTACH_REQ.

The DL_SET_PHYS_ADDR_REQ primitive changesthe 6-octet Ethernet address currently

associated (attached) to this stream. The credentials of the process which originally

opened this stream must be superuser or anEPERM error is returned in the

DL_ERROR_ACK. This primitive is destructive in that it affects all other current and

future streams attached to this device. An M_ERROR is sent up all other streams attached

to this device when this primitive on this stream is successful. Once changed, all streams

subsequently opened and attached to this device will obtain this new physical address.

The new physical address will remain in effect until this primitive is used to change the

physical address again or the system is rebooted, whichever comes ﬁrst.

CONFIGURATION The /kernel/drv/nfe.conf ﬁle supports the following options:

intr Speciﬁes the IRQ level for the board.

nframes Speciﬁes the number of receive frames to store at once. The

higher the nframes property, the more system RAM is used.

xmits Speciﬁes the number of transmit frames to store at once. This

number should be substantiallylower than the nframes pro-

perty.

The nfe driver does not support the use of shared RAM on the board. Auto-detect of the

media type is also not supported and the board has to be explicitly conﬁgured for which

media connector it is using. It is important to ensure that there are no conﬂicts for the

board’s IRQ level.

FILES /dev/nfe nfe character special device

/kernel/drv/nfe.conf conﬁguration ﬁle of nfe driver