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-<table class="head">
- <tr>
- <td class="head-ltitle">STE(4)</td>
- <td class="head-vol">Device Drivers Manual</td>
- <td class="head-rtitle">STE(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">ste</code> &#x2014; <span class="Nd">Sundance
- Technologies ST201 Fast Ethernet device driver</span></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
-<p class="Pp">To compile this driver into the kernel, place the following lines
- in your kernel configuration file:</p>
-<div class="Bd Pp Bd-indent"><code class="Cd">device miibus</code>
-<br/>
-<code class="Cd">device ste</code></div>
-<p class="Pp">Alternatively, to load the driver as a module at boot time, place
- the following line in <a class="Xr">loader.conf(5)</a>:</p>
-<div class="Bd Pp Bd-indent Li">
-<pre>if_ste_load=&quot;YES&quot;</pre>
-</div>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">The <code class="Nm">ste</code> driver provides support for PCI
- Ethernet adapters and embedded controllers based on the Sundance
- Technologies ST201 PCI Fast Ethernet controller chip.</p>
-<p class="Pp">The Sundance ST201 uses bus master DMA and is designed to be a
- 3Com Etherlink XL workalike. It uses the same DMA descriptor structure and
- is very similar in operation, however its register layout is different. The
- ST201 has a 64-bit multicast hash filter and a single perfect filter entry
- for the station address. It supports both 10 and 100Mbps speeds in either
- full or half duplex using an MII transceiver.</p>
-<p class="Pp">The <code class="Nm">ste</code> driver supports the following
- media types:</p>
-<dl class="Bl-tag">
- <dt>autoselect</dt>
- <dd>Enable autoselection of the media type and options. The user can manually
- override the autoselected mode by adding media options to the
- <span class="Pa">/etc/rc.conf</span> file.</dd>
- <dt>10baseT/UTP</dt>
- <dd>Set 10Mbps operation. The <var class="Ar">mediaopt</var> option can also
- be used to select either <var class="Ar">full-duplex</var> or
- <var class="Ar">half-duplex</var> modes.</dd>
- <dt>100baseTX</dt>
- <dd>Set 100Mbps (Fast Ethernet) operation. The <var class="Ar">mediaopt</var>
- option can also be used to select either <var class="Ar">full-duplex</var>
- or <var class="Ar">half-duplex</var> modes.</dd>
-</dl>
-<p class="Pp">The <code class="Nm">ste</code> driver supports the following
- media options:</p>
-<dl class="Bl-tag">
- <dt>full-duplex</dt>
- <dd>Force full duplex operation.</dd>
- <dt>half-duplex</dt>
- <dd>Force half duplex operation.</dd>
-</dl>
-<p class="Pp">For more information on configuring this device, see
- <a class="Xr">ifconfig(8)</a>.</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">ste</code> driver supports Sundance
- Technologies ST201 based Fast Ethernet adapters and embedded controllers
- including:</p>
-<p class="Pp"></p>
-<ul class="Bl-bullet Bl-compact">
- <li>D-Link DFE-530TXS</li>
- <li>D-Link DFE-550TX</li>
- <li>D-Link DFE-580TX</li>
-</ul>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SYSCTL_VARIABLES"><a class="permalink" href="#SYSCTL_VARIABLES">SYSCTL
- VARIABLES</a></h1>
-<p class="Pp">The following variables are available as both
- <a class="Xr">sysctl(8)</a> variables and <a class="Xr">loader(8)</a>
- tunables:</p>
-<dl class="Bl-tag">
- <dt id="dev.ste._d.int_rx_mod"><var class="Va">dev.ste.%d.int_rx_mod</var></dt>
- <dd>Maximum number of time to delay RX interrupts. The valid range is 0 to
- 209712 in units of 1us, the default is 150 (150us). The value 0
- effectively disables the RX interrupt moderation. The resolution of timer
- is about 3.2us so finer tuning than 3.2us wouldn't be available. The
- interface does not need to be brought down and up again before a change
- takes effect.</dd>
-</dl>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DIAGNOSTICS"><a class="permalink" href="#DIAGNOSTICS">DIAGNOSTICS</a></h1>
-<dl class="Bl-diag">
- <dt>ste%d: couldn't map ports/memory</dt>
- <dd>A fatal initialization error has occurred.</dd>
- <dt>ste%d: couldn't map interrupt</dt>
- <dd>A fatal initialization error has occurred.</dd>
- <dt>ste%d: watchdog timeout</dt>
- <dd>The device has stopped responding to the network, or there is a problem
- with the network connection (cable).</dd>
- <dt>ste%d: no memory for rx list</dt>
- <dd>The driver failed to allocate an mbuf for the receiver ring.</dd>
- <dt>ste%d: no memory for tx list</dt>
- <dd>The driver failed to allocate an mbuf for the transmitter ring when
- allocating a pad buffer or collapsing an mbuf chain into a cluster.</dd>
- <dt>ste%d: chip is in D3 power state -- setting to D0</dt>
- <dd>This message applies only to adapters which support power management. Some
- operating systems place the controller in low power mode when shutting
- down, and some PCI BIOSes fail to bring the chip out of this state before
- configuring it. The controller loses all of its PCI configuration in the
- D3 state, so if the BIOS does not set it back to full power mode in time,
- it will not be able to configure it correctly. The driver tries to detect
- this condition and bring the adapter back to the D0 (full power) state,
- but this may not be enough to return the driver to a fully operational
- condition. If you see this message at boot time and the driver fails to
- attach the device as a network interface, you will have to perform a
- second warm boot to have the device properly configured.
- <p class="Pp">Note that this condition only occurs when warm booting from
- another operating system. If you power down your system prior to booting
- <span class="Ux">FreeBSD</span>, the card should be configured
- correctly.</p>
- </dd>
-</dl>
-</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">altq(4)</a>, <a class="Xr">arp(4)</a>,
- <a class="Xr">miibus(4)</a>, <a class="Xr">netintro(4)</a>,
- <a class="Xr">ng_ether(4)</a>, <a class="Xr">polling(4)</a>,
- <a class="Xr">vlan(4)</a>, <a class="Xr">ifconfig(8)</a></p>
-<p class="Pp"><cite class="Rs"><span class="RsT">Sundance ST201 data
- sheet</span>.</cite></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">ste</code> device driver first appeared in
- <span class="Ux">FreeBSD 3.0</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">ste</code> driver was written by
- <span class="An">Bill Paul</span>
- &lt;<a class="Mt" href="mailto:wpaul@ee.columbia.edu">wpaul@ee.columbia.edu</a>&gt;.</p>
-</section>
-</div>
-<table class="foot">
- <tr>
- <td class="foot-date">December 24, 2009</td>
- <td class="foot-os">FreeBSD 15.0</td>
- </tr>
-</table>