1DE(4)                      Kernel Interfaces Manual                      DE(4)
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NAME

6       de - DEC DEUNA 10 Mb/s Ethernet interface
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SYNOPSIS

9       /sys/conf/SYSTEM:
10            NDE  de_controllers # DEUNA
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DESCRIPTION

13       The  de interface provides access to a 10 Mb/s Ethernet network through
14       a Digital Equipment UNIBUS Network Adapter (DEUNA).
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16       Each of the host's network addresses is specified at boot time with  an
17       SIOCSIFADDR  ioctl.   The  de  interface employs the address resolution
18       protocol described in arp(4P) to dynamically map between  Internet  and
19       Ethernet addresses on the local network.
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21       The interface normally tries to use a ``trailer'' encapsulation to min‐
22       imize copying data on input and output.  The use of trailers is negoti‐
23       ated  with  ARP.   This negotiation may be disabled, on a per-interface
24       basis, by setting the IFF_NOTRAILERS flag with an SIOCSIFFLAGS ioctl.
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DIAGNOSTICS

27       de%d: hardware address %s.  This is a normal autoconfiguration  message
28       noting the 6 byte physical ethernet address of the adapter.
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30       de%d:  oerror,  flags=%b tdrerr=%b (len=%d).  The hardware indicated an
31       error in transmitting a packet to the  cable.   The  status  and  error
32       flags are reported.
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34       de%d:  ierror,  flags=%b lenerr=%b (len=%d).  The hardware indicated an
35       error in reading a packet from the cable.  The status and  error  flags
36       are reported.
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38       de%d:  can't  handle  af%d.   The  interface  was handed a message with
39       addresses formatted in an unsuitable address  family;  the  packet  was
40       dropped.
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42       de%d:  buffer unavailable.  The interface received more packets than it
43       had buffers allocated to receive them.
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45       de%d: address change failed, csr0=%b csr1=%b.  The interface was unable
46       to  reprogram its physical ethernet address.  This may happen with very
47       early models of the interface.  This facility is  used  only  when  the
48       controller is not the first network interface configured for XNS.
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50       The  following  messages  indicate a probable hardware error performing
51       the indicated operation  during  autoconfiguration  or  initialization.
52       The  two control and status registers should indicate the nature of the
53       failure.  See the hardware manual for details.
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55       de%d: reset failed, csr0=%b csr1=%b.
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57       de%d: ppcb failed, csr0=%b csr1=%b.
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59       de%d: read addr failed, csr0=%b csr1=%b.
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61       de%d: wtring failed, csr0=%b csr1=%b.
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63       de%d: wtmode failed, csr0=%b csr1=%b.
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SEE ALSO

66       intro(4N), inet(4F), arp(4P)
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703rd Berkeley Distribution       August 20, 1987                          DE(4)
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