138 lines
4.8 KiB
Groff
138 lines
4.8 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: @(#)hy.4 6.4 (Berkeley) 3/27/91
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.\" $Id: hy.4,v 1.2 1993/08/01 07:36:16 mycroft Exp $
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.\"
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.Dd March 27, 1991
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.Dt HY 4 vax
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.Os BSD 4.2
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.Sh NAME
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.Nm hy
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.Nd Network Systems Hyperchannel interface
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.Sh SYNOPSIS
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.Cd "device hy0 at uba0 csr 0172410 vector hyint"
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.Sh DESCRIPTION
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The
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.Nm hy
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interface provides access to a Network
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Systems Corporation Hyperchannel Adapter.
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.Pp
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The network to which the interface is attached
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is specified at boot time with an
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.Dv SIOCSIFADDR
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.Xr ioctl 2 .
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The host's address is discovered by reading the adapter status
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register. The interface will not transmit or receive
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packets until the network number is known.
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.Sh DIAGNOSTICS
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.Bl -diag
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.It "hy%d: unit number 0x%x port %d type %x microcode level 0x%x."
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Identifies the device during autoconfiguration.
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.Pp
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.It hy%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 hy%d: can't initialize.
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The interface was unable to allocate
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.Tn UNIBUS
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resources. This
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is usually due to having too many network devices on an 11/750
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where there are only 3 buffered data paths.
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.Pp
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.It hy%d: NEX - Non Existent Memory.
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Non existent memory error returned from hardware.
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.Pp
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.It hy%d: BAR overflow.
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Bus address register
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overflow error returned from hardware.
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.Pp
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.It hy%d: Power Off bit set, trying to reset.
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Adapter has lost power, driver will reset the bit
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and see if power is still out in the adapter.
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.Pp
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.It hy%d: Power Off Error, network shutdown.
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Power was really off in the adapter, network
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connections are dropped.
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Software does not shut down the network unless
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power has been off for a while.
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.Pp
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.It hy%d: RECVD MP > MPSIZE (%d).
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A message proper was received that is too big.
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Probable a driver bug.
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Shouldn't happen.
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.Pp
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.It "hy%d: xmit error \- len > hy_olen [%d > %d]."
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Probable driver error.
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Shouldn't happen.
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.Pp
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.It hy%d: DRIVER BUG \- INVALID STATE %d.
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The driver state machine reached a non-existent state.
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Definite driver bug.
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.Pp
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.It hy%d: watchdog timer expired.
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A command in the adapter has taken too long to complete.
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Driver will abort and retry the command.
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.Pp
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.It hy%d: adapter power restored.
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Software was able to reset the power off bit,
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indicating that the power has been restored.
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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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interface appeared in
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.Bx 4.2 .
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.Sh BUGS
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If the adapter does not respond to the status command
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issued during autoconfigure, the adapter is assumed down.
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A reboot is required to recognize it.
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.Pp
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The adapter power fail interrupt seems to occur
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sporadically when power has, in fact, not failed.
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The driver will believe that power has failed
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only if it can not reset the power fail latch after
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a
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.Dq reasonable
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time interval.
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These seem to appear about 2-4 times a day on some machines.
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There seems to be no correlation with adapter
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rev level, number of ports used etc. and whether a
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machine will get these
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.Dq bogus powerfails .
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They don't seem to cause any real problems so they have
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been ignored.
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