141 lines
4.3 KiB
Groff
141 lines
4.3 KiB
Groff
.\" Copyright (c) 1983, 1991 The Regents of the University of California.
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\" 3. All advertising materials mentioning features or use of this software
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.\" must display the following acknowledgement:
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.\" This product includes software developed by the University of
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.\" California, Berkeley and its contributors.
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.\" 4. Neither the name of the University nor the names of its contributors
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.\" may be used to endorse or promote products derived from this software
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.\" without specific prior written permission.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" from: @(#)vv.4 6.5 (Berkeley) 3/27/91
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.\" $Id: vv.4,v 1.2 1993/08/01 07:35:50 mycroft Exp $
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.\"
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.Dd March 27, 1991
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.Dt VV 4 vax
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.Os BSD 4.2
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.Sh NAME
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.Nm vv
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.Nd Proteon proNET 10 Megabit ring
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.Sh SYNOPSIS
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.Cd "device vv0 at uba0 csr 0161000 vector vvrint vvxint"
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.Sh DESCRIPTION
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The
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.Nm vv
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interface provides access to a 10 Mb/s Proteon
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.Tn proNET
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ring network.
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.Pp
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The network address of the interface must be specified with an
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an
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.Dv SIOCSIFADDR
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.Xr ioctl 2
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before data can be transmitted or received.
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It is only permissible to change the network address while the
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interface is marked
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.Dq down .
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.Pp
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The host's hardware address is discovered by putting the interface in
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digital loopback mode (not joining the ring) and sending a broadcast
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packet from which the hardware address is extracted.
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.Pp
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Transmit timeouts are detected through use of a watchdog routine.
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Lost input interrupts are checked for when packets are sent out.
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.Pp
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If the installation is running
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.Tn CTL
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boards which use the old broadcast
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address of
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.Ql 0
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instead of the new address of
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.Ql 0xff ,
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the define
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.Dv OLD_BROADCAST
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should be specified in the driver.
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.Pp
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The driver can use
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.Dq trailer
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encapsulation to minimize copying
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data on input and output.
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This may be disabled, on a per-interface basis,
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by setting the
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.Dv IFF_NOTRAILERS
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flag with an
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.Dv SIOCSIFFLAGS
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.Xr ioctl .
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.Sh DIAGNOSTICS
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.Bl -diag
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.It vv%d: host %d.
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The software announces the host
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address discovered during autoconfiguration.
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.Pp
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.It vv%d: can't initialize.
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The software was unable to
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discover the address of this interface, so it deemed
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"dead" will not be enabled.
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.Pp
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.It vv%d: error vvocsr=%b.
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The hardware indicated an error on
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the previous transmission.
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.Pp
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.It vv%d: output timeout.
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The token timer has fired and the
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token will be recreated.
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.Pp
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.It vv%d: error vvicsr=%b.
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The hardware indicated an error
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in reading a packet off the ring.
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.Pp
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.It en%d: can't handle af%d.
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The interface was handed
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a message with addresses formatted in an unsuitable address
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family; the packet was dropped.
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.Pp
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.It vv%d: vs_olen=%d.
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The ring output routine has been
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handed a message with a preposterous length. This results in
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an immediate
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.Em panic: vs_olen .
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.El
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.Sh SEE ALSO
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.Xr netintro 4 ,
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.Xr inet 4
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.Sh HISTORY
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The
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.Nm
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driver appeared in
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.Bx 4.2 .
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.Sh BUGS
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The encapsulation of trailer packets in the
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.Bx 4.2
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version of this driver
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was incorrect (the packet type was in
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.Tn VAX
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byte order).
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As a result, the trailer encapsulation in this version is not compatible
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with the
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.Bx 4.2
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.Tn VAX
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version.
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