1.\" Copyright (c) 1988, 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.\" @(#)dmv.4 8.1 (Berkeley) 6/5/93 33.\" 34.Dd June 5, 1993 35.Dt DMV 4 vax 36.Os BSD 4.3 37.Sh NAME 38.Nm dmv 39.Nd 40.Tn DEC 41.Tn DMV-11 42point-to-point communications device 43.Sh SYNOPSIS 44.Cd "device dmv0 at uba0 csr 167000 vector dmvrint dmvxint" 45.Sh DESCRIPTION 46The 47.Nm dmv 48interface provides access to a point-to-point communications 49device which runs at up to 56 Kb/s. 50.Tn DMV-11 Ns s 51communicate 52using the 53.Tn DEC 54.Tn DDCMP 55link layer protocol. 56.Pp 57The host's address must be specified with an 58.Dv SIOCSIFADDR 59.Xr ioctl 2 , 60and the destination address specified with a 61.Dv SIOCSIFDSTADDR 62.Xr ioctl , 63before the interface will transmit or receive any packets. 64.Sh ROUTING 65The driver places a 66.Tn HOST 67entry in the kernel routing tables for the 68address given in the 69.Dv SIOCSIFDSTADDR 70.Xr ioctl . 71To use the 72.Tn DMV 73as a 74link between local nets, the route to the remote net must be added manually 75with the 76.Xr route 8 77command, or by the use of the routing process 78.Xr routed 8 79on each end of the link. 80.Sh DIAGNOSTICS 81.Bl -diag 82.It dmvprobe: can't start device. 83.It "dmvprobe: device init failed, bsel4=%o, bsel6=%o." 84The probe routine was unable to start the device. 85.Pp 86.It dmvinit: dmv%d not running. 87.It dmvrestart: can't start device. 88.It "dmv%d: device init failed, bsel4=%o, bsel6=%o." 89The initialization/restart routine was unable to start the device. 90.Pp 91.It dmv%d: far end on-line. 92The other end of the connection has come online. 93.Pp 94.It dmv%d: far end restart. 95The other end of the line has restarted. 96.Pp 97.It dmv%d: bad control %o. 98A bad parameter was passed to the 99.Em dmvload 100routine. 101.Pp 102.It "dmvxint: dmv%d bad rcv pkt addr 0x%x len 0x%x." 103A bad packet was received. 104.Pp 105.It "dmv%d: bad packet address 0x%x." 106An input packet was received which contained a type of 107address unknown to the driver. 108.Pp 109.It "dmvxint: dmv%d unallocated packet 0x%x." 110A protocol error has occured with the board. 111.Pp 112.It "dmvoutput, dmv%d can't handle af%d." 113A packet for an unsupported address family has been sent. 114.Pp 115.It "dmv%d: output timeout, bsel0=%b bsel2=%b." 116A device timeout occurred. 117.El 118.Pp 119Numerous other device errors may be displayed. 120.Sh SEE ALSO 121.Xr dmc 4 , 122.Xr intro 4 , 123.Xr inet 4 124.Sh HISTORY 125The 126.Nm 127driver appeared in 128.Bx 4.3 tahoe . 129