DE(4) BSD/vax Kernel Interfaces Manual DE(4)NAMEde — DEC DEUNA 10 Mb/s Ethernet interface
device de0 at uba0 csr 174510 vector deintr
The de interface provides access to a 10 Mb/s Ethernet network through a
Digital Equipment UNIBUS Network Adapter (DEUNA).
Each of the host's network addresses is specified at boot time with an
SIOCSIFADDR ioctl(2). The de interface employs the address resolution
protocol described in arp(4) to dynamically map between Internet and Eth‐
ernet addresses on the local network.
The interface normally tries to use a “trailer” encapsulation to minimize
copying data on input and output. The use of trailers is negotiated with
ARP. This negotiation may be disabled, on a per-interface basis, by set‐
ting the IFF_NOTRAILERS flag with an SIOCSIFFLAGS ioctl.
de%d: hardware address %s. This is a normal autoconfiguration message
noting the 6 byte physical ethernet address of the adapter.
de%d: oerror, flags=%b tdrerr=%b (len=%d). The hardware indicated an
error in transmitting a packet to the cable. The status and error flags
de%d: ierror, flags=%b lenerr=%b (len=%d). The hardware indicated an
error in reading a packet from the cable. The status and error flags are
de%d: can't handle af%d. The interface was handed a message with
addresses formatted in an unsuitable address family; the packet was
de%d: buffer unavailable. The interface received more packets than it
had buffers allocated to receive them.
de%d: address change failed, csr0=%b csr1=%b. The interface was unable
to reprogram its physical ethernet address. This may happen with very
early models of the interface. This facility is used only when the con‐
troller is not the first network interface configured for XNS.
The following messages indicate a probable hardware error performing the
indicated operation during autoconfiguration or initialization. The two
control and status registers should indicate the nature of the failure.
See the hardware manual for details.
de%d: reset failed, csr0=%b csr1=%b.
de%d: ppcb failed, csr0=%b csr1=%b.
de%d: read addr failed, csr0=%b csr1=%b.
de%d: wtring failed, csr0=%b csr1=%b.
de%d: wtmode failed, csr0=%b csr1=%b.
SEE ALSOnetintro(4), inet(4), arp(4)HISTORY
The de driver appeared in 4.3BSD.
4.2 Berkeley Distribution June 5, 1993 4.2 Berkeley Distribution