1.\" Copyright (c) 1986, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)de.4 8.1 (Berkeley) 6/5/93 33.\" 34.Dd June 5, 1993 35.Dt DE 4 vax 36.Os BSD 4.2 37.Sh NAME 38.Nm de 39.Nd 40.Tn DEC DEUNA 4110 Mb/s Ethernet interface 42.Sh SYNOPSIS 43.Cd "device de0 at uba0 csr 174510 vector deintr" 44.Sh DESCRIPTION 45The 46.Nm de 47interface provides access to a 10 Mb/s Ethernet network through 48a Digital Equipment 49.Tn UNIBUS 50Network Adapter 51.Pq Tn DEUNA . 52.Pp 53Each of the host's network addresses 54is specified at boot time with an 55.Dv SIOCSIFADDR 56.Xr ioctl 2 . 57The 58.Nm de 59interface employs the address resolution protocol described in 60.Xr arp 4 61to dynamically map between Internet and Ethernet addresses on the local 62network. 63.Pp 64The interface normally tries to use a 65.Dq trailer 66encapsulation 67to minimize copying data on input and output. 68The use of trailers is negotiated with 69.Tn ARP . 70This negotiation may be disabled, on a per-interface basis, 71by setting the 72.Dv IFF_NOTRAILERS 73flag with an 74.Dv SIOCSIFFLAGS 75.Xr ioctl . 76.Sh DIAGNOSTICS 77.Bl -diag 78.It de%d: hardware address %s. 79This is a normal autoconfiguration message noting the 6 byte physical 80ethernet address of the adapter. 81.Pp 82.It de%d: oerror, flags=%b tdrerr=%b (len=%d). 83The hardware indicated an error 84in transmitting a packet to the cable. 85The status and error flags are reported. 86.Pp 87.It de%d: ierror, flags=%b lenerr=%b (len=%d). 88The hardware indicated an error 89in reading a packet from the cable. 90The status and error flags are reported. 91.Pp 92.It de%d: can't handle af%d. 93The interface was handed 94a message with addresses formatted in an unsuitable address 95family; the packet was dropped. 96.Pp 97.It de%d: buffer unavailable. 98The interface received more packets 99than it had buffers allocated to receive them. 100.Pp 101.It de%d: address change failed, csr0=%b csr1=%b. 102The interface was unable to reprogram 103its physical ethernet address. 104This may happen with very early models of the interface. 105This facility is used only when 106the controller is not the first network interface configured for 107.Tn XNS . 108.El 109.Pp 110The following messages indicate a probable hardware error performing 111the indicated operation during autoconfiguration or initialization. 112The two control and status registers 113should indicate the nature of the failure. 114See the hardware manual for details. 115.Pp 116.Bl -diag 117.It de%d: reset failed, csr0=%b csr1=%b. 118.It de%d: ppcb failed, csr0=%b csr1=%b. 119.It de%d: read addr failed, csr0=%b csr1=%b. 120.It de%d: wtring failed, csr0=%b csr1=%b. 121.It de%d: wtmode failed, csr0=%b csr1=%b. 122.El 123.Sh SEE ALSO 124.Xr netintro 4 , 125.Xr inet 4 , 126.Xr arp 4 127.Sh HISTORY 128The 129.Nm 130driver appeared in 131.Bx 4.3 . 132