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diff --git a/static/freebsd/man4/if_ntb.4 4.html b/static/freebsd/man4/if_ntb.4 4.html new file mode 100644 index 00000000..27b057d3 --- /dev/null +++ b/static/freebsd/man4/if_ntb.4 4.html @@ -0,0 +1,75 @@ +<table class="head"> + <tr> + <td class="head-ltitle">IF_NTB(4)</td> + <td class="head-vol">Device Drivers Manual</td> + <td class="head-rtitle">IF_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">if_ntb</code> — <span class="Nd">Virtual + Ethernet interface for Non-Transparent Bridges</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 your kernel, place the following lines + in your kernel configuration file:</p> +<div class="Bd Pp Bd-indent"><code class="Cd">device ntb</code> +<br/> +<code class="Cd">device ntb_transport</code> +<br/> +<code class="Cd">device if_ntb</code></div> +<p class="Pp">Or, to load the driver 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>if_ntb_load="YES"</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.if_ntb.num_queues"><var class="Va">hw.if_ntb.num_queues</var></dt> + <dd>Limits maximal number of queues per interface. Default is unlimited.</dd> +</dl> +</section> +<section class="Sh"> +<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> +<p class="Pp">The <code class="Nm">if_ntb</code> driver attaches on top of the + <a class="Xr">ntb_transport(4)</a> driver to utilize one or more of its + packet queues to create virtual Ethernet network interface between the + systems. Typical MTU for the interface is about 64KB to reduce overhead. + Default MAC address for the interface is randomly generated.</p> +<p class="Pp">The <code class="Nm">if_ntb</code> driver does not implement any + real hardware offload, but since PCIe link is protected by CRC32, in some + situations it may be possible to save some CPU cycles by enabling fake + checksum offload on both link sides via setting + <code class="Cm">rxcsum</code> and <code class="Cm">txcsum</code> interface + options.</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">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">if_ntb</code> driver was developed by Intel + and originally written by <span class="An">Carl Delsey</span> + <<a class="Mt" href="mailto:carl@FreeBSD.org">carl@FreeBSD.org</a>>. + Later improvements were done by <span class="An">Conrad E. Meyer</span> + <<a class="Mt" href="mailto:cem@FreeBSD.org">cem@FreeBSD.org</a>> and + <span class="An">Alexander Motin</span> + <<a class="Mt" href="mailto:mav@FreeBSD.org">mav@FreeBSD.org</a>>.</p> +</section> +<section class="Sh"> +<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1> +<p class="Pp">Linux supports only one queue per interface, so manual + configuration may be required for compatibility.</p> +</section> +</div> +<table class="foot"> + <tr> + <td class="foot-date">September 2, 2017</td> + <td class="foot-os">FreeBSD 15.0</td> + </tr> +</table> |