File 0003-generate-new-documentation.patch of Package nvme-cli.11346

From eb58f548342f477d02da555cb939b3e6a5609269 Mon Sep 17 00:00:00 2001
From: Keith Busch <keith.busch@intel.com>
Date: Fri, 11 Jan 2019 13:58:38 -0700
Subject: [PATCH] generate new documentation

For new vendor specific commands.

Signed-off-by: Keith Busch <keith.busch@intel.com>
---
 .../nvme-wdc-clear-pcie-correctable-errors.1       |   71 ++
 .../nvme-wdc-clear-pcie-correctable-errors.html    |  802 ++++++++++++++
 Documentation/nvme-wdc-vs-smart-add-log.1          |  496 +++++++++
 Documentation/nvme-wdc-vs-smart-add-log.html       | 1136 ++++++++++++++++++++
 4 files changed, 2505 insertions(+)
 create mode 100644 Documentation/nvme-wdc-clear-pcie-correctable-errors.1
 create mode 100644 Documentation/nvme-wdc-clear-pcie-correctable-errors.html
 create mode 100644 Documentation/nvme-wdc-vs-smart-add-log.1
 create mode 100644 Documentation/nvme-wdc-vs-smart-add-log.html

diff --git a/Documentation/nvme-wdc-clear-pcie-correctable-errors.1 b/Documentation/nvme-wdc-clear-pcie-correctable-errors.1
new file mode 100644
index 0000000..0dbe83c
--- /dev/null
+++ b/Documentation/nvme-wdc-clear-pcie-correctable-errors.1
@@ -0,0 +1,71 @@
+'\" t
+.\"     Title: nvme-wdc-clear-pcie-correctable-errors
+.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 01/11/2019
+.\"    Manual: NVMe Manual
+.\"    Source: NVMe
+.\"  Language: English
+.\"
+.TH "NVME\-WDC\-CLEAR\-PC" "1" "01/11/2019" "NVMe" "NVMe Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+nvme-wdc-clear-pcie-correctable-errors \- Clears the pcie correctable errors field returned in the smart\-log\-add command\&.
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme wdc clear\-pcie\-correctable\-errors\fR <device>
+.fi
+.SH "DESCRIPTION"
+.sp
+For the NVMe device given, sends the wdc vendor unique clear pcie correctable errors command\&.
+.sp
+The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1)\&.
+.sp
+This will only work on WDC devices supporting this feature\&. Results for any other device are undefined\&.
+.SH "OPTIONS"
+.sp
+None
+.SH "EXAMPLES"
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+Clears the PCIe Correctable Error Count field returned in the smart\-log\-add command:
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# nvme wdc clear\-pcie\-correctable\-errors /dev/nvme0
+.fi
+.if n \{\
+.RE
+.\}
+.RE
+.SH "NVME"
+.sp
+Part of the nvme\-user suite
diff --git a/Documentation/nvme-wdc-clear-pcie-correctable-errors.html b/Documentation/nvme-wdc-clear-pcie-correctable-errors.html
new file mode 100644
index 0000000..37929c6
--- /dev/null
+++ b/Documentation/nvme-wdc-clear-pcie-correctable-errors.html
@@ -0,0 +1,802 @@
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+<head>
+<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
+<meta name="generator" content="AsciiDoc 8.6.8" />
+<title>nvme-wdc-clear-pcie-correctable-errors(1)</title>
+<style type="text/css">
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+  // Rebuild TOC entries.
+  var entries = tocEntries(document.getElementById("content"), toclevels);
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+    if (entry.element.id == "")
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+      noteholder.innerHTML +=
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+        spans[i].innerHTML =
+          "[<a href='#_footnote_" + n +
+          "' title='View footnote' class='footnote'>" + n + "</a>]";
+      }
+    }
+  }
+},
+
+install: function(toclevels) {
+  var timerId;
+
+  function reinstall() {
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+      asciidoc.toc(toclevels);
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+    window.onload = reinstallAndRemoveTimer;
+}
+
+}
+asciidoc.install();
+/*]]>*/
+</script>
+</head>
+<body class="manpage">
+<div id="header">
+<h1>
+nvme-wdc-clear-pcie-correctable-errors(1) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nvme-wdc-clear-pcie-correctable-errors -
+   Clears the pcie correctable errors field returned in the smart-log-add command.
+</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 wdc clear-pcie-correctable-errors</em> &lt;device&gt;</pre>
+<div class="attribution">
+</div></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_description">DESCRIPTION</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>For the NVMe device given, sends the wdc vendor unique clear pcie
+correctable errors command.</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>This will only work on WDC devices supporting this feature.
+Results for any other device are undefined.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_options">OPTIONS</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>None</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_examples">EXAMPLES</h2>
+<div class="sectionbody">
+<div class="ulist"><ul>
+<li>
+<p>
+Clears the PCIe Correctable Error Count field returned in the smart-log-add command:
+</p>
+<div class="listingblock">
+<div class="content">
+<pre><code># nvme wdc clear-pcie-correctable-errors /dev/nvme0</code></pre>
+</div></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 2019-01-11 13:56:35 MST
+</div>
+</div>
+</body>
+</html>
diff --git a/Documentation/nvme-wdc-vs-smart-add-log.1 b/Documentation/nvme-wdc-vs-smart-add-log.1
new file mode 100644
index 0000000..baf5e2c
--- /dev/null
+++ b/Documentation/nvme-wdc-vs-smart-add-log.1
@@ -0,0 +1,496 @@
+'\" t
+.\"     Title: nvme-wdc-vs-smart-add-log
+.\"    Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author]
+.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/>
+.\"      Date: 01/11/2019
+.\"    Manual: NVMe Manual
+.\"    Source: NVMe
+.\"  Language: English
+.\"
+.TH "NVME\-WDC\-VS\-SMART" "1" "01/11/2019" "NVMe" "NVMe Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.ie \n(.g .ds Aq \(aq
+.el       .ds Aq '
+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+nvme-wdc-vs-smart-add-log \- Send NVMe WDC vs\-smart\-add\-log Vendor Unique Command, return result
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme wdc vs\-smart\-add\-log\fR <device> [\-\-interval=<NUM>, \-i <NUM>] [\-\-output\-format=<normal|json> \-o <normal|json>]
+.fi
+.SH "DESCRIPTION"
+.sp
+For the NVMe device given, send a Vendor Unique WDC vs\-smart\-add\-log command and provide the additional smart log\&. The \-\-interval option will return performance statistics from the specified reporting interval\&.
+.sp
+The <device> parameter is mandatory and may be either the NVMe character device (ex: /dev/nvme0)\&.
+.sp
+This will only work on WDC devices supporting this feature\&. Results for any other device are undefined\&.
+.sp
+On success it returns 0, error code otherwise\&.
+.SH "OPTIONS"
+.PP
+\-i <NUM>, \-\-interval=<NUM>
+.RS 4
+Return the statistics from specific interval, defaults to 14
+.RE
+.PP
+\-o <format>, \-\-output\-format=<format>
+.RS 4
+Set the reporting format to
+\fInormal\fR, or
+\fIjson\fR\&. Only one output format can be used at a time\&. Default is normal\&.
+.RE
+.sp
+Valid Interval values and description :\-
+.TS
+allbox tab(:);
+ltB ltB.
+T{
+Value
+T}:T{
+Description
+T}
+.T&
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt.
+T{
+.sp
+\fB1\fR
+T}:T{
+.sp
+Most recent five (5) minute accumulated set\&.
+T}
+T{
+.sp
+\fB2\-12\fR
+T}:T{
+.sp
+Previous five (5) minute accumulated sets\&.
+T}
+T{
+.sp
+\fB13\fR
+T}:T{
+.sp
+The accumulated total of sets 1 through 12 that contain the previous hour of accumulated statistics\&.
+T}
+T{
+.sp
+\fB14\fR
+T}:T{
+.sp
+The statistical set accumulated since power\-up\&.
+T}
+T{
+.sp
+\fB15\fR
+T}:T{
+.sp
+The statistical set accumulated during the entire lifetime of the device\&.
+T}
+.TE
+.sp 1
+.SH "CA LOG PAGE DATA OUTPUT EXPLANATION"
+.TS
+allbox tab(:);
+ltB ltB.
+T{
+Field
+T}:T{
+Description
+T}
+.T&
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt.
+T{
+.sp
+\fBPhysical NAND bytes written\&.\fR
+T}:T{
+.sp
+The number of bytes written to NAND\&. 16 bytes \- hi/lo
+T}
+T{
+.sp
+\fBPhysical NAND bytes read\fR
+T}:T{
+.sp
+The number of bytes read from NAND\&. 16 bytes \- hi/lo
+T}
+T{
+.sp
+\fBBad NAND Block Count\fR
+T}:T{
+.sp
+Raw and normalized count of the number of NAND blocks that have been retired after the drives manufacturing tests (i\&.e\&. grown back blocks)\&. 2 bytes normalized, 6 bytes raw count
+T}
+T{
+.sp
+\fBUncorrectable Read Error Count\fR
+T}:T{
+.sp
+Total count of NAND reads that were not correctable by read retries, all levels of ECC, or XOR (as applicable)\&. 8 bytes
+T}
+T{
+.sp
+\fBSoft ECC Error Count\fR
+T}:T{
+.sp
+Total count of NAND reads that were not correctable by read retries, or first\-level ECC\&. 8 bytes
+T}
+T{
+.sp
+\fBSSD End to End Detection Count\fR
+T}:T{
+.sp
+A count of the detected errors by the SSD end to end error correction which includes DRAM, SRAM, or other storage element ECC/CRC protection mechanism (not NAND ECC)\&. 4 bytes
+T}
+T{
+.sp
+\fBSSD End to End Correction Count\fR
+T}:T{
+.sp
+A count of the corrected errors by the SSD end to end error correction which includes DRAM, SRAM, or other storage element ECC/CRC protection mechanism (not NAND ECC)\&. 4 bytes
+T}
+T{
+.sp
+\fBSystem Data % Used\fR
+T}:T{
+.sp
+A normalized cumulative count of the number of erase cycles per block since leaving the factory for the system (FW and metadata) area\&. Starts at 0 and increments\&. 100 indicates that the estimated endurance has been consumed\&.
+T}
+T{
+.sp
+\fBUser Data Max Erase Count\fR
+T}:T{
+.sp
+The maximum erase count across all NAND blocks in the drive\&. 4 bytes
+T}
+T{
+.sp
+\fBUser Data Min Erase Count\fR
+T}:T{
+.sp
+The minimum erase count across all NAND blocks in the drive\&. 4 bytes
+T}
+T{
+.sp
+\fBRefresh Count\fR
+T}:T{
+.sp
+A count of the number of blocks that have been re\-allocated due to background operations only\&. 8 bytes
+T}
+T{
+.sp
+\fBProgram Fail Count\fR
+T}:T{
+.sp
+Raw and normalized count of total program failures\&. Normalized count starts at 100 and shows the percent of remaining allowable failures\&. 2 bytes normalized, 6 bytes raw count
+T}
+T{
+.sp
+\fBUser Data Erase Fail Count\fR
+T}:T{
+.sp
+Raw and normalized count of total erase failures in the user area\&. Normalized count starts at 100 and shows the percent of remaining allowable failures\&. 2 bytes normalized, 6 bytes raw count
+T}
+T{
+.sp
+\fBSystem Area Erase Fail Count\fR
+T}:T{
+.sp
+Raw and normalized count of total erase failures in the system area\&. Normalized count starts at 100 and shows the percent of remaining allowable failures\&. 2 bytes normalized, 6 bytes raw count
+T}
+T{
+.sp
+\fBThermal Throttling Status\fR
+T}:T{
+.sp
+The current status of thermal throttling (enabled or disabled)\&. 2 bytes
+T}
+T{
+.sp
+\fBThermal Throttling Count\fR
+T}:T{
+.sp
+A count of the number of thermal throttling events\&. 2 bytes
+T}
+T{
+.sp
+\fBPCIe Correctable Error Count\fR
+T}:T{
+.sp
+Summation counter of all PCIe correctable errors (Bad TLP, Bad DLLP, Receiver error, Replay timeouts, Replay rollovers)\&. 8 bytes
+T}
+.TE
+.sp 1
+.SH "C1 LOG PAGE DATA OUTPUT EXPLANATION"
+.TS
+allbox tab(:);
+ltB ltB.
+T{
+Field
+T}:T{
+Description
+T}
+.T&
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt.
+T{
+.sp
+\fBHost Read Commands\fR
+T}:T{
+.sp
+Number of host read commands received during the reporting period\&.
+T}
+T{
+.sp
+\fBHost Read Blocks\fR
+T}:T{
+.sp
+Number of 512\-byte blocks requested during the reporting period\&.
+T}
+T{
+.sp
+\fBAverage Read Size\fR
+T}:T{
+.sp
+Average Read size is calculated using (Host Read Blocks/Host Read Commands)\&.
+T}
+T{
+.sp
+\fBHost Read Cache Hit Commands\fR
+T}:T{
+.sp
+Number of host read commands that serviced entirely from the on\-board read cache during the reporting period\&. No access to the NAND flash memory was required\&. This count is only updated if the entire command was serviced from the cache memory\&.
+T}
+T{
+.sp
+\fBHost Read Cache Hit Percentage\fR
+T}:T{
+.sp
+Percentage of host read commands satisfied from the cache\&.
+T}
+T{
+.sp
+\fBHost Read Cache Hit Blocks\fR
+T}:T{
+.sp
+Number of 512\-byte blocks of data that have been returned for Host Read Cache Hit Commands during the reporting period\&. This count is only updated with the blocks returned for host read commands that were serviced entirely from cache memory\&.
+T}
+T{
+.sp
+\fBAverage Read Cache Hit Size\fR
+T}:T{
+.sp
+Average size of read commands satisfied from the cache\&.
+T}
+T{
+.sp
+\fBHost Read Commands Stalled\fR
+T}:T{
+.sp
+Number of host read commands that were stalled due to a lack of resources within the SSD during the reporting period (NAND flash command queue full, low cache page count, cache page contention, etc\&.)\&. Commands are not considered stalled if the only reason for the delay was waiting for the data to be physically read from the NAND flash\&. It is normal to expect this count to equal zero on heavily utilized systems\&.
+T}
+T{
+.sp
+\fBHost Read Commands Stalled Percentage\fR
+T}:T{
+.sp
+Percentage of read commands that were stalled\&. If the figure is consistently high, then consideration should be given to spreading the data across multiple SSDs\&.
+T}
+T{
+.sp
+\fBHost Write Commands\fR
+T}:T{
+.sp
+Number of host write commands received during the reporting period\&.
+T}
+T{
+.sp
+\fBHost Write Blocks\fR
+T}:T{
+.sp
+Number of 512\-byte blocks written during the reporting period\&.
+T}
+T{
+.sp
+\fBAverage Write Size\fR
+T}:T{
+.sp
+Average Write size calculated using (Host Write Blocks/Host Write Commands)\&.
+T}
+T{
+.sp
+\fBHost Write Odd Start Commands\fR
+T}:T{
+.sp
+Number of host write commands that started on a non\-aligned boundary during the reporting period\&. The size of the boundary alignment is normally 4K; therefore this returns the number of commands that started on a non\-4K aligned boundary\&. The SSD requires slightly more time to process non\-aligned write commands than it does to process aligned write commands\&.
+T}
+T{
+.sp
+\fBHost Write Odd Start Commands Percentage\fR
+T}:T{
+.sp
+Percentage of host write commands that started on a non\-aligned boundary\&. If this figure is equal to or near 100%, and the NAND Read Before Write value is also high, then the user should investigate the possibility of offsetting the file system\&. For Microsoft Windows systems, the user can use Diskpart\&. For Unix\-based operating systems, there is normally a method whereby file system partitions can be placed where required\&.
+T}
+T{
+.sp
+\fBHost Write Odd End Commands\fR
+T}:T{
+.sp
+Number of host write commands that ended on a non\-aligned boundary during the reporting period\&. The size of the boundary alignment is normally 4K; therefore this returns the number of commands that ended on a non\-4K aligned boundary\&.
+T}
+T{
+.sp
+\fBHost Write Odd End Commands Percentage\fR
+T}:T{
+.sp
+Percentage of host write commands that ended on a non\-aligned boundary\&.
+T}
+T{
+.sp
+\fBHost Write Commands Stalled\fR
+T}:T{
+.sp
+Number of host write commands that were stalled due to a lack of resources within the SSD during the reporting period\&. The most likely cause is that the write data was being received faster than it could be saved to the NAND flash memory\&. If there was a large volume of read commands being processed simultaneously, then other causes might include the NAND flash command queue being full, low cache page count, or cache page contention, etc\&. It is normal to expect this count to be non\-zero on heavily utilized systems\&.
+T}
+T{
+.sp
+\fBHost Write Commands Stalled Percentage\fR
+T}:T{
+.sp
+Percentage of write commands that were stalled\&. If the figure is consistently high, then consideration should be given to spreading the data across multiple SSDs\&.
+T}
+T{
+.sp
+\fBNAND Read Commands\fR
+T}:T{
+.sp
+Number of read commands issued to the NAND devices during the reporting period\&. This figure will normally be much higher than the host read commands figure, as the data needed to satisfy a single host read command may be spread across several NAND flash devices\&.
+T}
+T{
+.sp
+\fBNAND Read Blocks\fR
+T}:T{
+.sp
+Number of 512\-byte blocks requested from NAND flash devices during the reporting period\&. This figure would normally be about the same as the host read blocks figure
+T}
+T{
+.sp
+\fBAverage NAND Read Size\fR
+T}:T{
+.sp
+Average size of NAND read commands\&.
+T}
+T{
+.sp
+\fBNAND Write Commands\fR
+T}:T{
+.sp
+Number of write commands issued to the NAND devices during the reporting period\&. There is no real correlation between the number of host write commands issued and the number of NAND Write Commands\&.
+T}
+T{
+.sp
+\fBNAND Write Blocks\fR
+T}:T{
+.sp
+Number of 512\-byte blocks written to the NAND flash devices during the reporting period\&. This figure would normally be about the same as the host write blocks figure\&.
+T}
+T{
+.sp
+\fBAverage NAND Write Size\fR
+T}:T{
+.sp
+Average size of NAND write commands\&. This figure should never be greater than 128K, as this is the maximum size write that is ever issued to a NAND device\&.
+T}
+T{
+.sp
+\fBNAND Read Before Write\fR
+T}:T{
+.sp
+This is the number of read before write operations that were required to process non\-aligned host write commands during the reporting period\&. See Host Write Odd Start Commands and Host Write Odd End Commands\&. NAND Read Before Write operations have a detrimental effect on the overall performance of the device\&.
+T}
+.TE
+.sp 1
+.SH "EXAMPLES"
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+Has the program issue WDC vs\-smart\-add\-log Vendor Unique Command with default interval (14) :
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# nvme wdc vs\-smart\-add\-log /dev/nvme0
+.fi
+.if n \{\
+.RE
+.\}
+.RE
+.SH "NVME"
+.sp
+Part of the nvme\-user suite\&.
diff --git a/Documentation/nvme-wdc-vs-smart-add-log.html b/Documentation/nvme-wdc-vs-smart-add-log.html
new file mode 100644
index 0000000..182b9c2
--- /dev/null
+++ b/Documentation/nvme-wdc-vs-smart-add-log.html
@@ -0,0 +1,1136 @@
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+<div id="header">
+<h1>
+nvme-wdc-vs-smart-add-log(1) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nvme-wdc-vs-smart-add-log -
+   Send NVMe WDC vs-smart-add-log Vendor Unique Command, return result
+</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 wdc vs-smart-add-log</em> &lt;device&gt; [--interval=&lt;NUM&gt;, -i &lt;NUM&gt;] [--output-format=&lt;normal|json&gt; -o &lt;normal|json&gt;]</pre>
+<div class="attribution">
+</div></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_description">DESCRIPTION</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>For the NVMe device given, send a Vendor Unique WDC vs-smart-add-log command and
+provide the additional smart log. The --interval option will return performance
+statistics from the specified reporting interval.</p></div>
+<div class="paragraph"><p>The &lt;device&gt; parameter is mandatory and may be either the NVMe character
+device (ex: /dev/nvme0).</p></div>
+<div class="paragraph"><p>This will only work on WDC devices supporting this feature.
+Results for any other device are undefined.</p></div>
+<div class="paragraph"><p>On success it returns 0, error code otherwise.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_options">OPTIONS</h2>
+<div class="sectionbody">
+<div class="dlist"><dl>
+<dt class="hdlist1">
+-i &lt;NUM&gt;
+</dt>
+<dt class="hdlist1">
+--interval=&lt;NUM&gt;
+</dt>
+<dd>
+<p>
+        Return the statistics from specific interval, defaults to 14
+</p>
+</dd>
+<dt class="hdlist1">
+-o &lt;format&gt;
+</dt>
+<dt class="hdlist1">
+--output-format=&lt;format&gt;
+</dt>
+<dd>
+<p>
+        Set the reporting format to <em>normal</em>, or
+        <em>json</em>. Only one output format can be used at a time.
+        Default is normal.
+</p>
+</dd>
+</dl></div>
+<div class="paragraph"><p>Valid Interval values and description :-</p></div>
+<div class="tableblock">
+<table rules="all"
+style="margin-left:auto; margin-right:auto;"
+width="100%"
+frame="hsides"
+cellspacing="0" cellpadding="4">
+<col width="50%" />
+<col width="50%" />
+<thead>
+<tr>
+<th align="left" valign="top">Value </th>
+<th align="left" valign="top">Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>1</strong></p></td>
+<td align="left" valign="top"><p class="table">Most recent five (5) minute accumulated set.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>2-12</strong></p></td>
+<td align="left" valign="top"><p class="table">Previous five (5) minute accumulated sets.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>13</strong></p></td>
+<td align="left" valign="top"><p class="table">The accumulated total of sets 1 through 12 that contain the previous hour of
+accumulated statistics.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>14</strong></p></td>
+<td align="left" valign="top"><p class="table">The statistical set accumulated since power-up.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>15</strong></p></td>
+<td align="left" valign="top"><p class="table">The statistical set accumulated during the entire lifetime of the device.</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_ca_log_page_data_output_explanation">CA Log Page Data Output Explanation</h2>
+<div class="sectionbody">
+<div class="tableblock">
+<table rules="all"
+style="margin-left:auto; margin-right:auto;"
+width="100%"
+frame="hsides"
+cellspacing="0" cellpadding="4">
+<col width="50%" />
+<col width="50%" />
+<thead>
+<tr>
+<th align="left" valign="top">Field </th>
+<th align="left" valign="top">Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Physical NAND bytes written.</strong></p></td>
+<td align="left" valign="top"><p class="table">The number of bytes written to NAND.  16 bytes - hi/lo</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Physical NAND bytes read</strong></p></td>
+<td align="left" valign="top"><p class="table">The number of bytes read from NAND.  16 bytes - hi/lo</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Bad NAND Block Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Raw and normalized count of the number of NAND blocks that have been
+retired after the drives manufacturing tests (i.e. grown back blocks).
+2 bytes normalized, 6 bytes raw count</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Uncorrectable Read Error Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Total count of NAND reads that were not correctable by read retries, all
+levels of ECC, or XOR (as applicable).  8 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Soft ECC Error Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Total count of NAND reads that were not correctable by read retries, or
+first-level ECC.  8 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>SSD End to End Detection Count</strong></p></td>
+<td align="left" valign="top"><p class="table">A count of the detected errors by the SSD end to end error correction which
+includes DRAM, SRAM, or other storage element ECC/CRC protection mechanism (not
+NAND ECC).  4 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>SSD End to End Correction Count</strong></p></td>
+<td align="left" valign="top"><p class="table">A count of the corrected errors by the SSD end to end error correction which
+includes DRAM, SRAM, or other storage element ECC/CRC protection mechanism (not
+NAND ECC).  4 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>System Data % Used</strong></p></td>
+<td align="left" valign="top"><p class="table">A normalized cumulative count of the number of erase cycles per block since
+leaving the factory for the system (FW and metadata) area. Starts at 0 and
+increments. 100 indicates that the estimated endurance has been consumed.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>User Data Max Erase Count</strong></p></td>
+<td align="left" valign="top"><p class="table">The maximum erase count across all NAND blocks in the drive.  4 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>User Data Min Erase Count</strong></p></td>
+<td align="left" valign="top"><p class="table">The minimum erase count across all NAND blocks in the drive.  4 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Refresh Count</strong></p></td>
+<td align="left" valign="top"><p class="table">A count of the number of blocks that have been re-allocated due to
+background operations only.  8 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Program Fail Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Raw and normalized count of total program failures. Normalized count
+starts at 100 and shows the percent of remaining allowable failures.
+2 bytes normalized, 6 bytes raw count</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>User Data Erase Fail Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Raw and normalized count of total erase failures in the user area.
+Normalized count starts at 100 and shows the percent of remaining
+allowable failures.  2 bytes normalized, 6 bytes raw count</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>System Area Erase Fail Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Raw and normalized count of total erase failures in the system area.
+Normalized count starts at 100 and shows the percent of remaining
+allowable failures.  2 bytes normalized, 6 bytes raw count</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Thermal Throttling Status</strong></p></td>
+<td align="left" valign="top"><p class="table">The current status of thermal throttling (enabled or disabled).
+2 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Thermal Throttling Count</strong></p></td>
+<td align="left" valign="top"><p class="table">A count of the number of thermal throttling events.  2 bytes</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>PCIe Correctable Error Count</strong></p></td>
+<td align="left" valign="top"><p class="table">Summation counter of all PCIe correctable errors (Bad TLP, Bad
+DLLP, Receiver error, Replay timeouts, Replay rollovers).  8 bytes</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_c1_log_page_data_output_explanation">C1 Log Page Data Output Explanation</h2>
+<div class="sectionbody">
+<div class="tableblock">
+<table rules="all"
+style="margin-left:auto; margin-right:auto;"
+width="100%"
+frame="hsides"
+cellspacing="0" cellpadding="4">
+<col width="50%" />
+<col width="50%" />
+<thead>
+<tr>
+<th align="left" valign="top">Field </th>
+<th align="left" valign="top">Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host read commands received during the reporting period.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Blocks</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of 512-byte blocks requested during the reporting period.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Average Read Size</strong></p></td>
+<td align="left" valign="top"><p class="table">Average Read size is calculated using (Host Read Blocks/Host Read Commands).</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Cache Hit Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host read commands that serviced entirely from the on-board read
+cache during the reporting period. No access to the NAND flash memory was required.
+This count is only updated if the entire command was serviced from the cache memory.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Cache Hit Percentage</strong></p></td>
+<td align="left" valign="top"><p class="table">Percentage of host read commands satisfied from the cache.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Cache Hit Blocks</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of 512-byte blocks of data that have been returned for Host Read Cache Hit
+Commands during the reporting period. This count is only updated with the blocks
+returned for host read commands that were serviced entirely from cache memory.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Average Read Cache Hit Size</strong></p></td>
+<td align="left" valign="top"><p class="table">Average size of read commands satisfied from the cache.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Commands Stalled</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host read commands that were stalled due to a lack of resources within
+the SSD during the reporting period (NAND flash command queue full, low cache page count,
+cache page contention, etc.). Commands are not considered stalled if the only reason for
+the delay was waiting for the data to be physically read from the NAND flash. It is normal
+to expect this count to equal zero on heavily utilized systems.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Read Commands Stalled Percentage</strong></p></td>
+<td align="left" valign="top"><p class="table">Percentage of read commands that were stalled. If the figure is consistently high,
+then consideration should be given to spreading the data across multiple SSDs.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host write commands received during the reporting period.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Blocks</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of 512-byte blocks written during the reporting period.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Average Write Size</strong></p></td>
+<td align="left" valign="top"><p class="table">Average Write size calculated using (Host Write Blocks/Host Write Commands).</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Odd Start Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host write commands that started on a non-aligned boundary during
+the reporting period. The size of the boundary alignment is normally 4K; therefore
+this returns the number of commands that started on a non-4K aligned boundary.
+The SSD requires slightly more time to process non-aligned write commands than it
+does to process aligned write commands.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Odd Start Commands Percentage</strong></p></td>
+<td align="left" valign="top"><p class="table">Percentage of host write commands that started on a non-aligned boundary. If this
+figure is equal to or near 100%, and the NAND Read Before Write value is also high,
+then the user should investigate the possibility of offsetting the file system. For
+Microsoft Windows systems, the user can use Diskpart. For Unix-based operating systems,
+there is normally a method whereby file system partitions can be placed where required.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Odd End Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host write commands that ended on a non-aligned boundary during the
+reporting period. The size of the boundary alignment is normally 4K; therefore this
+returns the number of commands that ended on a non-4K aligned boundary.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Odd End Commands Percentage</strong></p></td>
+<td align="left" valign="top"><p class="table">Percentage of host write commands that ended on a non-aligned boundary.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Commands Stalled</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of host write commands that were stalled due to a lack of resources within the
+SSD during the reporting period. The most likely cause is that the write data was being
+received faster than it could be saved to the NAND flash memory. If there was a large
+volume of read commands being processed simultaneously, then other causes might include
+the NAND flash command queue being full, low cache page count, or cache page contention, etc.
+It is normal to expect this count to be non-zero on heavily utilized systems.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Host Write Commands Stalled Percentage</strong></p></td>
+<td align="left" valign="top"><p class="table">Percentage of write commands that were stalled. If the figure is consistently high, then
+consideration should be given to spreading the data across multiple SSDs.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>NAND Read Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of read commands issued to the NAND devices during the reporting period.
+This figure will normally be much higher than the host read commands figure, as the data
+needed to satisfy a single host read command may be spread across several NAND flash devices.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>NAND Read Blocks</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of 512-byte blocks requested from NAND flash devices during the reporting period.
+This figure would normally be about the same as the host read blocks figure</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Average NAND Read Size</strong></p></td>
+<td align="left" valign="top"><p class="table">Average size of NAND read commands.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>NAND Write Commands</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of write commands issued to the NAND devices during the reporting period.
+There is no real correlation between the number of host write commands issued and the
+number of NAND Write Commands.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>NAND Write Blocks</strong></p></td>
+<td align="left" valign="top"><p class="table">Number of 512-byte blocks written to the NAND flash devices during the reporting period.
+This figure would normally be about the same as the host write blocks figure.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>Average NAND Write Size</strong></p></td>
+<td align="left" valign="top"><p class="table">Average size of NAND write commands. This figure should never be greater than 128K, as
+this is the maximum size write that is ever issued to a NAND device.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table"><strong>NAND Read Before Write</strong></p></td>
+<td align="left" valign="top"><p class="table">This is the number of read before write operations that were required to process
+non-aligned host write commands during the reporting period. See Host Write Odd Start
+Commands and Host Write Odd End Commands. NAND Read Before Write operations have
+a detrimental effect on the overall performance of the device.</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_examples">EXAMPLES</h2>
+<div class="sectionbody">
+<div class="ulist"><ul>
+<li>
+<p>
+Has the program issue WDC vs-smart-add-log Vendor Unique Command with default interval (14) :
+</p>
+<div class="listingblock">
+<div class="content">
+<pre><code># nvme wdc vs-smart-add-log /dev/nvme0</code></pre>
+</div></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 2019-01-11 13:56:35 MST
+</div>
+</div>
+</body>
+</html>
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