1993-08-01 11:32:48 +04:00
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.\" Copyright (c) 1986, 1991 The Regents of the University of California.
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.\" All rights reserved.
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1993-03-21 12:45:37 +03:00
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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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1993-08-01 11:32:48 +04:00
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.\" from: @(#)np.4 6.6 (Berkeley) 3/27/91
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.\" $Id: np.4,v 1.2 1993/08/01 07:36:06 mycroft Exp $
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1993-03-21 12:45:37 +03:00
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.\"
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1993-08-01 11:32:48 +04:00
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.Dd March 27, 1991
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1993-03-21 12:45:37 +03:00
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.Dt NP 4 vax
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.Os BSD 4.2
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.Sh NAME
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.Nm np
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.Nd Interlan Np100 10 Mb/s Ethernet interface
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.Sh SYNOPSIS
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.Cd "device np0 at uba0 csr 166000 vector npintr"
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.Sh DESCRIPTION
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The
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.Nm np
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device provides access to an Interlan Np100 Ethernet interface
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for control functions.
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.Pp
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This interface is unusual in that it requires loading firmware
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into the controller before it may be used as a network link-level interface.
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This is accomplished by opening a character special device,
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and writing data to it.
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It is also possible to do post-mortem debugging of firmware failures
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by reading the local memory of the device.
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.\" .Pp
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.\" A program to load the image is provided in
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.\" .Pa /usr/src/new/np100 .
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.\" The sequence of commands would be:
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.\" .Bd -literal -offset indent
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.\" # ./npload np.image [/dev/np00]
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.\" # sleep 10
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.\" # ifconfig ix0 ...
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.\" .Ed
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.Pp
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Multiple control processes are allowed by opening separate
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minor devices; secondary interfaces are specified by shifting
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the interface number by 4 bits.
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.Pp
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The device also responds to commands passed through the driver
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by the following
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.Xr ioctl 2 Ns s :
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.Bl -tag -width NPNETBOOT
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.It Dv NPRESET
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kills off all active network processes.
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.It Dv NPSTART
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begins execution of the board at the specified address (usually
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.Li 0x400 ) .
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.It Dv NPNETBOOT
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downloads the image from a server on the network.
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[Contact
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.Tn MICOM-INTERLAN
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for details.]
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.El
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.Sh DIAGNOSTICS
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.Bl -diag
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.It np%d: Bad Maintenance command: %x!
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An invalid
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.Xr ioctl
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was passed to the np driver.
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.Pp
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.It np%d: Panic NP100 bad buffer chain.
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An error occurred in an read or write operation causing it to
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run out of buffers before it finished the operation.
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This indicates a kernel failure rather than a device failure.
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.Pp
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.It NP100 unit %d not found!
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A failure occurred during initialization, such that the unibus
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address expected for the board was found to be bad.
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Probably indicates hardware problems with the board, as do the following:
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.Pp
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.Bd -filled -offset indent -compact
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.It NP100 Unit %d timed out!
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.It NP100 Unit %d Failed diagnostics!
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.It Status from CSR0: %x.
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.Ed
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.Pp
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.It "Panic from NP100 unit %d!"
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.It "Panic Message: %s."
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An occurrence on the board was deemed serious enough
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to have the vax print it out.
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.Pp
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.It NP100 unit #%d available!
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The board was successfully loaded and started.
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.Pp
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.It np%d: Bad Req: %x.
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The board made a maintenance request to the vax that it did not
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understand.
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.Pp
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.It np%d: No more room on Command Queue!
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The np driver allowed an internal resource to be exhausted.
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This should never happen.
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.El
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.Pp
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There are 110 other diagnostic messages that can be enabled
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by setting bits in a debugging mask.
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Consult the driver for details.
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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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.Xr arp 4 ,
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.Xr ix 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 4.3 .
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