de man page on 4.4BSD

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DE(4)		       BSD/vax Kernel Interfaces Manual			 DE(4)

NAME
     de — DEC DEUNA 10 Mb/s Ethernet interface

SYNOPSIS
     device de0 at uba0 csr 174510 vector deintr

DESCRIPTION
     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.

DIAGNOSTICS
     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
     are reported.

     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
     reported.

     de%d: can't handle af%d.  The interface was handed a message with
     addresses formatted in an unsuitable address family; the packet was
     dropped.

     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 ALSO
     netintro(4), inet(4), arp(4)

HISTORY
     The de driver appeared in 4.3BSD.

4.2 Berkeley Distribution	 June 5, 1993	     4.2 Berkeley Distribution
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