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-<table class="head">
- <tr>
- <td class="head-ltitle">AHD(4)</td>
- <td class="head-vol">Device Drivers Manual</td>
- <td class="head-rtitle">AHD(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">ahd</code> &#x2014; <span class="Nd">Adaptec
- PCI/PCI-X Ultra320 SCSI host adapter driver</span></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
-<p class="Pp">For one or more PCI/PCI-X cards:
- <br/>
- <code class="Cd">ahd* at pci? dev ? function ?</code></p>
-<p class="Pp">To compile in debugging code:</p>
-<div class="Bd Bd-indent"><code class="Cd">options AHD_DEBUG</code>
-<br/>
-<code class="Cd">options AHD_DEBUG_OPTS=&lt;bitmask of options&gt;</code>
-<br/>
-<code class="Cd">options AHD_REG_PRETTY_PRINT</code></div>
-<p class="Pp">For SCSI busses:
- <br/>
- <code class="Cd">scsibus* at ahd?</code></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">This driver provides access to the SCSI bus(ses) connected to
- Adaptec AIC79xx host adapter chips.</p>
-<p class="Pp">Driver features include support for narrow and wide busses, fast,
- ultra, ultra2, ultra160, and ultra320 synchronous transfers, packetized
- transfers, tagged queueing, and 512 SCBs.</p>
-<p class="Pp">The <code class="Dv">AHD_DEBUG_OPTS</code> option is used to
- control which diagnostic messages are printed to the console when
- <code class="Dv">AHD_DEBUG</code> is enabled. Logically OR the following
- bits together:</p>
-<table class="Bl-column Bd-indent">
- <tr id="Value">
- <td><a class="permalink" href="#Value"><i class="Em">Value</i></a></td>
- <td><a class="permalink" href="#Function"><i class="Em" id="Function">Function</i></a></td>
- </tr>
- <tr>
- <td>0x0001</td>
- <td>Show miscellaneous information</td>
- </tr>
- <tr>
- <td>0x0002</td>
- <td>Show sense data</td>
- </tr>
- <tr>
- <td>0x0004</td>
- <td>Show Serial EEPROM contents</td>
- </tr>
- <tr>
- <td>0x0008</td>
- <td>Show bus termination settings</td>
- </tr>
- <tr>
- <td>0x0010</td>
- <td>Show host memory usage</td>
- </tr>
- <tr>
- <td>0x0020</td>
- <td>Show SCSI protocol messages</td>
- </tr>
- <tr>
- <td>0x0040</td>
- <td>Show mode pointer of the chip register window</td>
- </tr>
- <tr>
- <td>0x0080</td>
- <td>Show selection timeouts</td>
- </tr>
- <tr>
- <td>0x0100</td>
- <td>Show FIFO usage messages</td>
- </tr>
- <tr>
- <td>0x0200</td>
- <td>Show Queue Full status</td>
- </tr>
- <tr>
- <td>0x0400</td>
- <td>Show SCB queue status</td>
- </tr>
- <tr>
- <td>0x0800</td>
- <td>Show inbound packet information</td>
- </tr>
- <tr>
- <td>0x1000</td>
- <td>Show S/G list information</td>
- </tr>
- <tr>
- <td>0x2000</td>
- <td>Enable extra diagnostic code in the firmware</td>
- </tr>
-</table>
-<p class="Pp">The <code class="Dv">AHD_REG_PRETTY_PRINT</code> option compiles
- in support for human-readable bit definitions for each register that is
- printed by the debugging code. However, it also bloats the compiled size of
- the driver by approximately 215KB.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="HARDWARE"><a class="permalink" href="#HARDWARE">HARDWARE</a></h1>
-<p class="Pp">The <code class="Nm">ahd</code> driver supports the following:</p>
-<p class="Pp"></p>
-<ul class="Bl-bullet Bl-compact">
- <li>Adaptec AIC7901 host adapter chip</li>
- <li>Adaptec AIC7901A host adapter chip</li>
- <li>Adaptec AIC7902 host adapter chip</li>
- <li>Adaptec 29320 host adapter</li>
- <li>Adaptec 39320 host adapter</li>
- <li>Many motherboards with on-board SCSI support</li>
-</ul>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
- ALSO</a></h1>
-<p class="Pp"><a class="Xr">ahc(4)</a>, <a class="Xr">cd(4)</a>,
- <a class="Xr">ch(4)</a>, <a class="Xr">intro(4)</a>,
- <a class="Xr">scsi(4)</a>, <a class="Xr">sd(4)</a>,
- <a class="Xr">ses(4)</a>, <a class="Xr">st(4)</a></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
-<p class="Pp">The <code class="Nm">ahd</code> driver first appeared in
- <span class="Ux">FreeBSD 4.7</span> and <span class="Ux">NetBSD
- 2.0</span>.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
-<p class="Pp">The <code class="Nm">ahd</code> driver, the AIC7xxx sequencer-code
- assembler, and the firmware running on the aic79xx chips was written by
- <span class="An">Justin T. Gibbs</span>. <span class="Ux">NetBSD</span>
- porting is done by Pascal Renauld, Frank van der Linden, Jason Thorpe, and
- Allen Briggs. This manual page is based on the <a class="Xr">ahc(4)</a>
- manual page.</p>
-</section>
-</div>
-<table class="foot">
- <tr>
- <td class="foot-date">May 16, 2009</td>
- <td class="foot-os">NetBSD 10.1</td>
- </tr>
-</table>