summaryrefslogtreecommitdiff
path: root/static/freebsd/man4/ntb.4 3.html
diff options
context:
space:
mode:
Diffstat (limited to 'static/freebsd/man4/ntb.4 3.html')
-rw-r--r--static/freebsd/man4/ntb.4 3.html76
1 files changed, 76 insertions, 0 deletions
diff --git a/static/freebsd/man4/ntb.4 3.html b/static/freebsd/man4/ntb.4 3.html
new file mode 100644
index 00000000..c6bbe407
--- /dev/null
+++ b/static/freebsd/man4/ntb.4 3.html
@@ -0,0 +1,76 @@
+<table class="head">
+ <tr>
+ <td class="head-ltitle">NTB(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">NTB(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">ntb</code> &#x2014;
+ <span class="Nd">Non-Transparent Bridge subsystem</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp">To compile it into your kernel, place the following lines in your
+ kernel configuration file:</p>
+<div class="Bd Pp Bd-indent"><code class="Cd">device ntb</code></div>
+<p class="Pp">Or, to load it as a module at boot, place the following line in
+ <a class="Xr">loader.conf(5)</a>:</p>
+<div class="Bd Pp Bd-indent Li">
+<pre>ntb_load=&quot;YES&quot;</pre>
+</div>
+<p class="Pp">The following tunables are settable from the
+ <a class="Xr">loader(8)</a>:</p>
+<dl class="Bl-ohang">
+ <dt id="hw.ntb.debug_level"><var class="Va">hw.ntb.debug_level</var></dt>
+ <dd>Driver debug level. The default value is 0, higher means more
+ verbose.</dd>
+ <dt id="hint.ntb_hw."><var class="Va">hint.ntb_hw.</var><var class="Ar">X</var><var class="Va">.config</var></dt>
+ <dd>Configures a set of NTB functions, separated by commas, and their resource
+ allocation. Each function can be configured as:
+ &quot;[&lt;name&gt;][:&lt;mw&gt;[:&lt;spad&gt;[:&lt;db&gt;]]]&quot;,
+ where: <var class="Va">name</var> is a name of the driver to attach (empty
+ means any), <var class="Va">mw</var> is a number of memory windows to
+ allocate (empty means all available), <var class="Va">spad</var> is a
+ number of scratchpad registers to allocate (empty means all available),
+ <var class="Va">db</var> is a number of doorbells to allocate (empty means
+ all available). The default configuration is empty string, which means
+ single function with all available resources, allowing any driver to
+ attach.</dd>
+</dl>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">Non-Transparent Bridges connect two computer systems with PCIe
+ link(s), providing each of them limited access to others memory space,
+ scratchpad registers and interrupts. The <code class="Nm">ntb</code>
+ subsystem uses those resources provided in generic way by hardware drivers
+ and splits them between several functions, according to specified
+ configuration.</p>
+</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">if_ntb(4)</a>, <a class="Xr">ntb_hw_amd(4)</a>,
+ <a class="Xr">ntb_hw_intel(4)</a>, <a class="Xr">ntb_hw_plx(4)</a>,
+ <a class="Xr">ntb_transport(4)</a></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">ntb</code> subsystem was developed by Intel
+ and originally written by <span class="An">Carl Delsey</span>
+ &lt;<a class="Mt" href="mailto:carl@FreeBSD.org">carl@FreeBSD.org</a>&gt;.
+ Later improvements were done by <span class="An">Conrad E. Meyer</span>
+ &lt;<a class="Mt" href="mailto:cem@FreeBSD.org">cem@FreeBSD.org</a>&gt; and
+ <span class="An">Alexander Motin</span>
+ &lt;<a class="Mt" href="mailto:mav@FreeBSD.org">mav@FreeBSD.org</a>&gt;.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">August 29, 2019</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>