1.\" $NetBSD: vv.4,v 1.11 2003/08/07 10:31:14 agc Exp $ 2.\" 3.\" Copyright (c) 1983, 1991, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" from: @(#)vv.4 8.1 (Berkeley) 6/5/93 31.\" 32.Dd June 5, 1993 33.Dt VV 4 vax 34.Os 35.Sh NAME 36.Nm vv 37.Nd Proteon proNET 10 Megabit ring network 38.Sh SYNOPSIS 39.Cd "vv0 at uba0 csr 0161000 vector vvrint vvxint" 40.Sh DESCRIPTION 41NOTE: This driver has not been ported from 42.Bx 4.4 43yet. 44.Pp 45The 46.Nm vv 47interface provides access to a 10 Mb/s Proteon 48.Tn proNET 49ring network. 50.Pp 51The network address of the interface must be specified with an 52an 53.Dv SIOCSIFADDR 54.Xr ioctl 2 55before data can be transmitted or received. 56It is only permissible to change the network address while the 57interface is marked 58.Dq down . 59.Pp 60The host's hardware address is discovered by putting the interface in 61digital loopback mode (not joining the ring) and sending a broadcast 62packet from which the hardware address is extracted. 63.Pp 64Transmit timeouts are detected through use of a watchdog routine. 65Lost input interrupts are checked for when packets are sent out. 66.Pp 67If the installation is running 68.Tn CTL 69boards which use the old broadcast 70address of 71.Ql 0 72instead of the new address of 73.Ql 0xff , 74the define 75.Dv OLD_BROADCAST 76should be specified in the driver. 77.Pp 78The driver can use 79.Dq trailer 80encapsulation to minimize copying 81data on input and output. 82This may be disabled, on a per-interface basis, 83by setting the 84.Dv IFF_NOTRAILERS 85flag with an 86.Dv SIOCSIFFLAGS 87.Xr ioctl 2 . 88.Sh DIAGNOSTICS 89.Bl -diag 90.It vv%d: host %d. 91The software announces the host 92address discovered during autoconfiguration. 93.Pp 94.It vv%d: can't initialize. 95The software was unable to 96discover the address of this interface, so it deemed 97"dead" will not be enabled. 98.Pp 99.It vv%d: error vvocsr=%b. 100The hardware indicated an error on 101the previous transmission. 102.Pp 103.It vv%d: output timeout. 104The token timer has fired and the 105token will be recreated. 106.Pp 107.It vv%d: error vvicsr=%b. 108The hardware indicated an error 109in reading a packet off the ring. 110.Pp 111.It vv%d: can't handle af%d. 112The interface was handed 113a message with addresses formatted in an unsuitable address 114family; the packet was dropped. 115.Pp 116.It vv%d: vs_olen=%d. 117The ring output routine has been 118handed a message with a preposterous length. This results in 119an immediate 120.Em panic: vs_olen . 121.El 122.Sh SEE ALSO 123.Xr inet 4 , 124.Xr netintro 4 125.Sh HISTORY 126The 127.Nm 128driver appeared in 129.Bx 4.2 . 130.Sh BUGS 131The encapsulation of trailer packets in the 132.Bx 4.2 133version of this driver 134was incorrect (the packet type was in 135.Tn VAX 136byte order). 137As a result, the trailer encapsulation in this version is not compatible 138with the 139.Bx 4.2 140.Tn VAX 141version. 142