static/netbsd/man4/man4.vax/css.4 3.html


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<table class="head">
  <tr>
    <td class="head-ltitle">CSS(4)</td>
    <td class="head-vol">Device Drivers Manual (vax)</td>
    <td class="head-rtitle">CSS(4)</td>
  </tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">css</code> &#x2014; <span class="Nd">DEC IMP-11A
    LH/DH IMP network interface</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="Cd">pseudo-device imp device css0 at uba0 csr 167600
    flags 10 vector cssrint cssxint</code></p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">NOTE: At the moment, <span class="Ux">NetBSD</span> does not
    support IMP, so this manual page is not relevant.</p>
<p class="Pp" id="pseudo-device">The <code class="Nm">css</code> device provides
    a Local Host/Distant Host interface to an IMP. It is normally used when
    participating in the DARPA Internet. The controller itself is not accessible
    to users, but instead provides the hardware support to the IMP interface
    described in <a class="Xr">imp(4)</a>. The configuration entry for the
    <a class="Xr">imp(4)</a> must also include the
    <a class="permalink" href="#pseudo-device"><i class="Em">pseudo-device</i></a>
    as shown above.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DIAGNOSTICS"><a class="permalink" href="#DIAGNOSTICS">DIAGNOSTICS</a></h1>
<dl class="Bl-diag">
  <dt>css%d: not alive.</dt>
  <dd>The initialization routine was entered even though the device did not
      autoconfigure. This is indicates a system problem.</dd>
  <dt>css%d: can't initialize.</dt>
  <dd>Insufficient UNIBUS resources existed to initialize the device. This is
      likely to occur when the device is run on a buffered data path on an
      11/750 and other network interfaces are also configured to use buffered
      data paths, or when it is configured to use buffered data paths on an
      11/730 (which has none).</dd>
  <dt>css%d: imp doesn't respond, icsr=%b.</dt>
  <dd>The driver attempted to initialize the device, but the IMP failed to
      respond after 500 tries. Check the cabling.</dd>
  <dt>css%d: stray output interrupt csr=%b.</dt>
  <dd>An interrupt occurred when no output had previously been started.</dd>
  <dt>css%d: output error, ocsr=%b icsr=%b.</dt>
  <dd>The device indicated a problem sending data on output.</dd>
  <dt>css%d: recv error, csr=%b.</dt>
  <dd>The device indicated a problem receiving data on input.</dd>
  <dt>css%d: bad length=%d.</dt>
  <dd>An input operation resulted in a data transfer of less than 0 or more than
      1008 bytes of data into memory (according to the word count register).
      This should never happen as the maximum size of a host-IMP message is 1008
      bytes.</dd>
</dl>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The <code class="Nm">css</code> interface appeared in
    <span class="Ux">4.2BSD</span>.</p>
</section>
</div>
<table class="foot">
  <tr>
    <td class="foot-date">June 5, 1993</td>
    <td class="foot-os">NetBSD 10.1</td>
  </tr>
</table>