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Edit File: nvme-dir-send.html

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<body class="manpage">
<div id="header">
<h1>
nvme-dir-send(1) Manual Page
</h1>
<h2>NAME</h2>
<div class="sectionbody">
<p>nvme-dir-send -
   Issue a directive send command, returns applicable results
</p>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="verseblock">
<pre class="content"><em>nvme dir-send</em> &lt;device&gt; [--namespace-id=&lt;nsid&gt; | -n &lt;nsid&gt;]
                        [--data-len=&lt;data-len&gt; | -l &lt;data-len&gt;]
                        [--dir-type=&lt;dtype&gt; | -D &lt;dtype&gt;]
                        [--dir-spec=&lt;dspec&gt; | -S &lt;dspec&gt;]
                        [--dir-oper=&lt;doper&gt; | -O &lt;doper&gt;]
                        [--endir=&lt;endir&gt; | -e &lt;endir&gt;]
                        [--target-dir=&lt;tdir&gt; | -T &lt;tdir&gt;]
                        [--human-readable | -H] [--raw-binary | -b]
                        [--output-format=&lt;fmt&gt; | -o &lt;fmt&gt;] [--verbose | -v]
                        [--timeout=&lt;timeout&gt; | -t &lt;timeout&gt;]</pre>
<div class="attribution">
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph"><p>Submits an NVMe Directive Send admin command and returns the applicable
results. This may be the combination of directive type, and operation, as
well as target directive and its enable/disable status of the operation,
if specific operation needs it.</p></div>
<div class="paragraph"><p>The &lt;device&gt; parameter is mandatory and may be either the NVMe character
device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).</p></div>
<div class="paragraph"><p>On success, the returned directive&#8217;s parameter structure (if applicable) is
returned in one of several ways depending on the option flags; the
structure may parsed by the program and printed in a readable format
if it is a known structure, displayed in hex, or the raw buffer may be
printed to stdout for another program to parse.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_options">OPTIONS</h2>
<div class="sectionbody">
<div class="dlist"><dl>
<dt class="hdlist1">
-n &lt;nsid&gt;
</dt>
<dt class="hdlist1">
--namespace-id=&lt;nsid&gt;
</dt>
<dd>
<p>
        Retrieve the feature for the given nsid. This is optional and
        most features do not use this value.
</p>
</dd>
<dt class="hdlist1">
-D &lt;dtype&gt;
</dt>
<dt class="hdlist1">
--dir-type=&lt;dtype&gt;
</dt>
<dd>
<p>
        Directive type
</p>
</dd>
<dt class="hdlist1">
-S &lt;dspec&gt;
</dt>
<dt class="hdlist1">
--dir-spec=&lt;dspec&gt;
</dt>
<dd>
<p>
        Directive specific
</p>
</dd>
<dt class="hdlist1">
-O &lt;doper&gt;
</dt>
<dt class="hdlist1">
--dir-oper=&lt;doper&gt;
</dt>
<dd>
<p>
        Directive operation
</p>
</dd>
<dt class="hdlist1">
-T &lt;tdir&gt;
</dt>
<dt class="hdlist1">
--target-dir=&lt;nsr&gt;
</dt>
<dd>
<p>
        Target directive of the operation
</p>
</dd>
<dt class="hdlist1">
-e &lt;endir&gt;
</dt>
<dt class="hdlist1">
--endir=&lt;endir&gt;
</dt>
<dd>
<p>
        Target directive enable(1) or disable (0) operation
</p>
<div class="tableblock">
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width="100%"
frame="border"
cellspacing="0" cellpadding="4">
<col width="50%" />
<col width="50%" />
<tbody>
<tr>
<td align="left" valign="top"><p class="table">Select</p></td>
<td align="left" valign="top"><p class="table">Description</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">0</p></td>
<td align="left" valign="top"><p class="table">Current</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">1</p></td>
<td align="left" valign="top"><p class="table">Default</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">2</p></td>
<td align="left" valign="top"><p class="table">Saved</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">3</p></td>
<td align="left" valign="top"><p class="table">Supported capabilities</p></td>
</tr>
<tr>
<td align="left" valign="top"><p class="table">4–7</p></td>
<td align="left" valign="top"><p class="table">Reserved</p></td>
</tr>
</tbody>
</table>
</div>
</dd>
<dt class="hdlist1">
-l &lt;data-len&gt;
</dt>
<dt class="hdlist1">
--data-len=&lt;data-len&gt;
</dt>
<dd>
<p>
        The data length for the buffer returned for this feature. Most
        known features do not use this value. The exception is LBA
        Range Type
</p>
</dd>
<dt class="hdlist1">
-b
</dt>
<dt class="hdlist1">
--raw-binary
</dt>
<dd>
<p>
        Print the raw receive buffer to stdout if the command returns
        a structure.
</p>
</dd>
<dt class="hdlist1">
-H
</dt>
<dt class="hdlist1">
--human-readable
</dt>
<dd>
<p>
        Print the decoded receive buffer to stdout if the command returns
        a structure.
</p>
</dd>
<dt class="hdlist1">
-o &lt;fmt&gt;
</dt>
<dt class="hdlist1">
--output-format=&lt;fmt&gt;
</dt>
<dd>
<p>
        Set the reporting format to <em>normal</em>, <em>json</em> or <em>binary</em>. Only one
        output format can be used at a time.
</p>
</dd>
<dt class="hdlist1">
-v
</dt>
<dt class="hdlist1">
--verbose
</dt>
<dd>
<p>
        Increase the information detail in the output.
</p>
</dd>
<dt class="hdlist1">
-t &lt;timeout&gt;
</dt>
<dt class="hdlist1">
--timeout=&lt;timeout&gt;
</dt>
<dd>
<p>
        Override default timeout value. In milliseconds.
</p>
</dd>
</dl></div>
</div>
</div>
<div class="sect1">
<h2 id="_examples">EXAMPLES</h2>
<div class="sectionbody">
<div class="ulist"><ul>
<li>
<p>
Enable streams directive :
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme dir-send /dev/nvme0n1 --dir-type 0 --dir-oper 1 --target-dir 1 --endir 1</code></pre>
</div></div>
</li>
<li>
<p>
Disable streams directive :
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme dir-send /dev/nvme0n1 --dir-type 0 --dir-oper 1 --target-dir 1 --endir 0</code></pre>
</div></div>
</li>
<li>
<p>
Release all allocated streams resource :
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme dir-send /dev/nvme0n1 --dir-type 1 --dir-oper 2</code></pre>
</div></div>
</li>
<li>
<p>
Release stream ID 3 :
</p>
<div class="listingblock">
<div class="content">
<pre><code># nvme dir-send /dev/nvme0 --dir-type 1 --dir-oper 1 --dir-spec 3</code></pre>
</div></div>
<div class="paragraph"><p>It is probably a bad idea to not redirect stdout when using this mode.</p></div>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_nvme">NVME</h2>
<div class="sectionbody">
<div class="paragraph"><p>Part of the nvme-user suite</p></div>
</div>
</div>
</div>
<div id="footnotes"><hr /></div>
<div id="footer">
<div id="footer-text">
Last updated
 2025-02-13 00:00:00 UTC
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