NAME    [Toc]    [Back]

     de - DEC DEUNA/DELUA 10 Mb/s Ethernet interface

SYNOPSIS    [Toc]    [Back]

     de0 at uba? csr 0174510

DESCRIPTION    [Toc]    [Back]

     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 Ethernet
 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
     setting   the   IFF_NOTRAILERS  flag  with  an  SIOCSIFFLAGS
ioctl(2).

DIAGNOSTICS    [Toc]    [Back]

     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.  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: buffer unavailable.  The interface received more packets than it
     had buffers allocated to receive them.

     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    [Toc]    [Back]

     arp(4),  inet(4),  intro(4),  netintro(4),   uba(4),   hostname.if(5),
     ifconfig(8)

HISTORY    [Toc]    [Back]

     The de driver appeared in 4.3BSD.

OpenBSD      3.6                          March      27,     1991