nvme-cli : Sanitize and Sanitize Log command support.

nvme-cli : Sanitize and Sanitize Log command support.

[Chaitanya Kulkarni]

HI,

This adds Sanitize and Sanitize-Log command support for nvme-cli. These four patches include command implementation, documentation, status codes and opcodes for the overall sanitize implementation.

For sanitize command specific option I've tested "-a <action>, --sanact=<action>" for block erase sanitize, overwrite sanitize on a real device, rest of the code I've added for the completeness.

Regards,
Chaitanya

[PATCH 1/4] nvme-cli : add support for sanitize command.

[Chaitanya Kulkarni]

This adds support for NVMe sanitize command execution including
NVMe status codes, command opcode and help text.

For more details please refer to NVM Express 1.3 specification.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at hgst.com>
---
 linux/nvme.h   | 16 ++++++++++
 nvme-builtin.h |  1 +
 nvme-print.c   |  2 ++
 nvme.c         | 92 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 111 insertions(+)

diff --git a/linux/nvme.h b/linux/nvme.h
index c05d819..28ab9b8 100644
--- a/linux/nvme.h
+++ b/linux/nvme.h
@@ -660,6 +660,7 @@ enum nvme_admin_opcode {
 	nvme_admin_format_nvm		= 0x80,
 	nvme_admin_security_send	= 0x81,
 	nvme_admin_security_recv	= 0x82,
+	nvme_admin_sanitize			= 0x84,
 };
 
 enum {
@@ -697,6 +698,18 @@ enum {
 	NVME_FWACT_ACTV		= (2 << 3),
 };
 
+/* Sanitize */
+enum {
+	NVME_SANITIZE_NO_DEALLOC		= 0x00000200,
+	NVME_SANITIZE_OIPBP				= 0x00000100,
+	NVME_SANITIZE_OWPASS_SHIFT		= 0x00000004,
+	NVME_SANITIZE_AUSE				= 0x00000008,
+	NVME_SANITIZE_ACT_CRYPTO_ERASE	= 0x00000004,
+	NVME_SANITIZE_ACT_OVERWRITE		= 0x00000003,
+	NVME_SANITIZE_ACT_BLOCK_ERASE	= 0x00000002,
+	NVME_SANITIZE_ACT_EXIT			= 0x00000001,
+};
+
 struct nvme_identify {
 	__u8			opcode;
 	__u8			flags;
@@ -1010,6 +1023,9 @@ enum {
 	NVME_SC_SGL_INVALID_OFFSET	= 0x16,
 	NVME_SC_SGL_INVALID_SUBTYPE	= 0x17,
 
+	NVME_SC_SANITIZE_FAILED			= 0x1C,
+	NVME_SC_SANITIZE_IN_PROGRESS	= 0x1D,
+
 	NVME_SC_LBA_RANGE		= 0x80,
 	NVME_SC_CAP_EXCEEDED		= 0x81,
 	NVME_SC_NS_NOT_READY		= 0x82,
diff --git a/nvme-builtin.h b/nvme-builtin.h
index 2bb01cb..b4cd3ba 100644
--- a/nvme-builtin.h
+++ b/nvme-builtin.h
@@ -42,6 +42,7 @@ COMMAND_LIST(
 	ENTRY("write", "Submit a write command, return results", write_cmd)
 	ENTRY("write-zeroes", "Submit a write zeroes command, return results", write_zeroes)
 	ENTRY("write-uncor", "Submit a write uncorrectable command, return results", write_uncor)
+	ENTRY("sanitize", "Submit a sanitize command", sanitize)
 	ENTRY("reset", "Resets the controller", reset)
 	ENTRY("subsystem-reset", "Resets the controller", subsystem_reset)
 	ENTRY("show-regs", "Shows the controller registers. Requires admin character device", show_registers)
diff --git a/nvme-print.c b/nvme-print.c
index bf78d4a..f03382f 100644
--- a/nvme-print.c
+++ b/nvme-print.c
@@ -1102,6 +1102,8 @@ char *nvme_status_to_string(__u32 status)
 	case NVME_SC_FUSED_MISSING:		return "FUSED_MISSING";
 	case NVME_SC_INVALID_NS:		return "INVALID_NS";
 	case NVME_SC_CMD_SEQ_ERROR:		return "CMD_SEQ_ERROR";
+	case NVME_SC_SANITIZE_FAILED:		return "SANITIZE_FAILED";
+	case NVME_SC_SANITIZE_IN_PROGRESS:	return "SANITIZE_IN_PROGRESS";
 	case NVME_SC_LBA_RANGE:			return "LBA_RANGE";
 	case NVME_SC_CAP_EXCEEDED:		return "CAP_EXCEEDED";
 	case NVME_SC_NS_NOT_READY:		return "NS_NOT_READY";
diff --git a/nvme.c b/nvme.c
index 7e07ffd..8507cd3 100644
--- a/nvme.c
+++ b/nvme.c
@@ -1428,6 +1428,98 @@ static int reset(int argc, char **argv, struct command *cmd, struct plugin *plug
 	return err;
 }
 
+static int sanitize(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+	char *desc = "Send a sanitize command.";
+	char *no_dealloc_desc = "No deallocate after sanitize.";
+	char *oipbp_desc = "Overwrite invert pattern between passes.";
+	char *owpass_desc = "Overwrite pass count.";
+	char *ause_desc = "Allow unrestricted sanitize exit.";
+	char *sanact_desc = "Sanitize action.";
+	char *ovrpat_desc = "Overwrite pattern.";
+
+	int fd;
+	int ret;
+	__u32 sanitize_cdw10 = 0;
+	__u32 sanitize_cdw11 = 0;
+
+	struct nvme_passthru_cmd admin_cmd;
+
+	struct config {
+		uint8_t no_dealloc;
+		uint8_t oipbp;
+		uint8_t owpass;
+		uint8_t ause;
+		uint8_t sanact;
+		uint32_t ovrpat;
+	};
+
+	struct config cfg = {
+		.no_dealloc = 0,
+		.oipbp = 0,
+		.owpass = 0,
+		.ause = 0,
+		.sanact = 0,
+		.ovrpat = 0,
+	};
+
+	const struct argconfig_commandline_options command_line_options[] = {
+		{"no_dealloc", 'd', "", CFG_NONE, &cfg.no_dealloc, no_argument, no_dealloc_desc},
+		{"oipbp", 'i', "", CFG_NONE, &cfg.oipbp, no_argument, oipbp_desc},
+		{"owpass", 'n', "NUM", CFG_POSITIVE, &cfg.owpass, required_argument, owpass_desc},
+		{"ause", 'u', "", CFG_NONE, &cfg.ause, no_argument, ause_desc},
+		{"sanact", 'a', "NUM", CFG_POSITIVE, &cfg.sanact, required_argument, sanact_desc},
+		{"ovrpat", 'p', "NUM", CFG_POSITIVE, &cfg.ovrpat, required_argument, ovrpat_desc},
+		{NULL}
+	};
+
+	fd = parse_and_open(argc, argv, desc, command_line_options, NULL, 0);
+	if (fd < 0)
+		return fd;
+
+	switch (cfg.sanact) {
+	case NVME_SANITIZE_ACT_CRYPTO_ERASE:
+	case NVME_SANITIZE_ACT_BLOCK_ERASE:
+	case NVME_SANITIZE_ACT_EXIT:
+		sanitize_cdw10 = cfg.sanact;
+		break;
+	case NVME_SANITIZE_ACT_OVERWRITE:
+		sanitize_cdw10 = cfg.sanact;
+		sanitize_cdw11 = cfg.ovrpat;
+		break;
+	default:
+		fprintf(stderr, "Invalid Sanitize Action\n");
+		return -1;
+	}
+
+	if (cfg.ause)
+		sanitize_cdw10 |= NVME_SANITIZE_AUSE;
+
+	if (cfg.sanact == NVME_SANITIZE_ACT_OVERWRITE) {
+		if (cfg.owpass >= 0 && cfg.owpass <= 16) {
+			sanitize_cdw10 |= (cfg.owpass << NVME_SANITIZE_OWPASS_SHIFT);
+		} else {
+			fprintf(stderr, "owpass out of range [0-16] or sanitize action is not set to overwrite\n");
+			return -1;
+		}
+		if (cfg.oipbp)
+			sanitize_cdw10 |= NVME_SANITIZE_OIPBP;
+	}
+
+	if (cfg.sanact != NVME_SANITIZE_ACT_EXIT && cfg.no_dealloc)
+		sanitize_cdw10 |= NVME_SANITIZE_NO_DEALLOC;
+
+	memset(&admin_cmd, 0, sizeof (admin_cmd));
+	admin_cmd.opcode = nvme_admin_sanitize;
+	admin_cmd.cdw10 = sanitize_cdw10;
+	admin_cmd.cdw11 = sanitize_cdw11;
+
+	ret = nvme_submit_passthru(fd, NVME_IOCTL_ADMIN_CMD, &admin_cmd);
+
+	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	return ret;
+}
+
 static int show_registers(int argc, char **argv, struct command *cmd, struct plugin *plugin)
 {
 	const char *desc = "Reads and shows the defined NVMe controller registers "\
-- 
2.7.4

[PATCH 2/4] nvme-cli : add sanitize command documentation.

[Chaitanya Kulkarni]

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at hgst.com>
---
 Documentation/nvme-sanitize.1    | 105 +++++
 Documentation/nvme-sanitize.html | 903 +++++++++++++++++++++++++++++++++++++++
 Documentation/nvme-sanitize.txt  |  93 ++++
 3 files changed, 1101 insertions(+)
 create mode 100644 Documentation/nvme-sanitize.1
 create mode 100644 Documentation/nvme-sanitize.html
 create mode 100644 Documentation/nvme-sanitize.txt

diff --git a/Documentation/nvme-sanitize.1 b/Documentation/nvme-sanitize.1
new file mode 100644
index 0000000..d984acd
--- /dev/null
+++ b/Documentation/nvme-sanitize.1
@@ -0,0 +1,105 @@
+'\" t
+.\"     Title: nvme-sanitize
+.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 06/28/2017
+.\"    Manual: NVMe Manual
+.\"    Source: NVMe
+.\"  Language: English
+.\"
+.TH "NVME\-SANITIZE" "1" "06/28/2017" "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-sanitize \- Send NVMe Sanitize Command, return result
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme sanitize\fR <device> [\-\-no\-dealloc | \-d]
+              [\-\-oipbp | \-i]
+              [\-\-owpass=<overwrite\-pass\-count> | \-n <overwrite\-pass\-count>]
+              [\-\-ause | \-u]
+              [\-\-sanact=<action> | \-a <action>]
+              [\-\-ovrpat=<overwrite\-pattern> | \-p <overwrite\-pattern>]
+.fi
+.SH "DESCRIPTION"
+.sp
+For the NVMe device given, sends a Sanitize command and provides the result\&.
+.sp
+The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0)\&.
+.sp
+On success it returns 0, error code otherwise\&.
+.SH "OPTIONS"
+.PP
+\-d, \-\-no\-delloc
+.RS 4
+No Deallocate After Sanitize: If set, then the controller shall not deallocate any logical blocks as a result of successfully completing the sanitize operation\&. If cleared, then the controller should deallocate logical blocks as a result of successfully completing the sanitize operation\&. This bit shall be ignored if the Sanitize Action field is set to 001b (i\&.e\&., Exit Failure Mode)\&.
+.RE
+.PP
+\-i, \-\-oipbp
+.RS 4
+Overwrite Invert Pattern Between Passes: If set, then the Overwrite Pattern shall be inverted between passes\&. If cleared, then the overwrite pattern shall not be inverted between passes\&. This bit shall be ignored unless the Sanitize Action field is set to 011b (i\&.e\&., Overwrite)\&.
+.RE
+.PP
+\-n <overwrite\-pass\-count>, \-\-owpass=<overwrite\-pass\-count>
+.RS 4
+Overwrite Pass Count: This field specifies the number of overwrite passes (i\&.e\&., how many times the media is to be overwritten) using the data from the Overwrite Pattern field of this command\&. A value of 0 specifies 16 overwrite passes\&. This field shall be ignored unless the Sanitize Action field is set to 011b (i\&.e\&., Overwrite)\&.
+.RE
+.PP
+\-u, \-\-ause
+.RS 4
+Allow Unrestricted Sanitize Exit: If set, then the sanitize operation is performed in unrestricted completion mode\&. If cleared then the sanitize operation is performed in restricted completion mode\&. This bit shall be ignored if the Sanitize Action field is set to 001b (i\&.e\&., Exit Failure Mode)\&.
+.RE
+.PP
+\-a <action>, \-\-sanact=<action>
+.RS 4
+Sanitize Action: 000b \- Reserved 001b \- Exit Failure Mode 010b \- Start a Block Erase sanitize operation 011b \- Start an Overwrite sanitize operation 100b \- Start a Crypto Erase sanitize operation
+.RE
+.PP
+\-p <overwrite\-pattern>, \-\-ovrpat=<overwrite\-pattern>
+.RS 4
+Overwrite Pattern: This field is ignored unless the Sanitize Action field in Command Dword 10 is set to 011b (i\&.e\&., Overwrite)\&. This field specifies a 32\-bit pattern that is used for the Overwrite sanitize operation\&.
+.RE
+.SH "EXAMPLES"
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+Has the program issue Sanitize Command :
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# nvme sanitize /dev/nvme0n1 \-a 0x02
+# nvme sanitize /dev/nvme0n1 \-\-sanact=0x01
+.fi
+.if n \{\
+.RE
+.\}
+.RE
+.SH "NVME"
+.sp
+Part of the nvme\-user suite\&.
diff --git a/Documentation/nvme-sanitize.html b/Documentation/nvme-sanitize.html
new file mode 100644
index 0000000..9612e06
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@@ -0,0 +1,903 @@
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+</head>
+<body class="manpage">
+<div id="header">
+<h1>
+nvme-sanitize(1) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nvme-sanitize -
+   Send NVMe Sanitize 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 sanitize</em> &lt;device&gt; [--no-dealloc | -d]
+              [--oipbp | -i]
+              [--owpass=&lt;overwrite-pass-count&gt; | -n &lt;overwrite-pass-count&gt;]
+              [--ause | -u]
+              [--sanact=&lt;action&gt; | -a &lt;action&gt;]
+              [--ovrpat=&lt;overwrite-pattern&gt; | -p &lt;overwrite-pattern&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 a Sanitize command and
+provides the result.</p></div>
+<div class="paragraph"><p>The &lt;device&gt; parameter is mandatory NVMe character device (ex: /dev/nvme0).</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">
+-d
+</dt>
+<dt class="hdlist1">
+--no-delloc
+</dt>
+<dd>
+<p>
+    No Deallocate After Sanitize:
+    If set, then the controller shall not deallocate any logical
+    blocks as a result of successfully completing the sanitize
+    operation. If cleared, then the controller should deallocate
+    logical blocks as a result of successfully completing the
+    sanitize operation.  This bit shall be ignored if the Sanitize
+    Action field is set to 001b (i.e., Exit Failure Mode).
+</p>
+</dd>
+<dt class="hdlist1">
+-i
+</dt>
+<dt class="hdlist1">
+--oipbp
+</dt>
+<dd>
+<p>
+    Overwrite Invert Pattern Between Passes:
+    If set, then the Overwrite Pattern shall be inverted between
+    passes. If cleared, then the overwrite pattern shall not be
+    inverted between passes. This bit shall be ignored unless the
+    Sanitize Action field is set to 011b (i.e., Overwrite).
+</p>
+</dd>
+<dt class="hdlist1">
+-n &lt;overwrite-pass-count&gt;
+</dt>
+<dt class="hdlist1">
+--owpass=&lt;overwrite-pass-count&gt;
+</dt>
+<dd>
+<p>
+    Overwrite Pass Count:
+    This field specifies the number of overwrite passes (i.e.,
+    how many times the media is to be overwritten) using the data
+    from the Overwrite Pattern field of this command. A value of 0
+    specifies 16 overwrite passes. This field shall be ignored
+    unless the Sanitize Action field is set to 011b (i.e., Overwrite).
+</p>
+</dd>
+<dt class="hdlist1">
+-u
+</dt>
+<dt class="hdlist1">
+--ause
+</dt>
+<dd>
+<p>
+    Allow Unrestricted Sanitize Exit:
+    If set, then the sanitize operation is performed in unrestricted
+    completion mode. If cleared then the sanitize operation is
+    performed in restricted completion mode. This bit shall be ignored
+    if the Sanitize Action field is set to 001b (i.e., Exit Failure Mode).
+</p>
+</dd>
+<dt class="hdlist1">
+-a &lt;action&gt;
+</dt>
+<dt class="hdlist1">
+--sanact=&lt;action&gt;
+</dt>
+<dd>
+<p>
+    Sanitize Action:
+    000b - Reserved
+    001b - Exit Failure Mode
+    010b - Start a Block Erase sanitize operation
+    011b - Start an Overwrite sanitize operation
+    100b - Start a Crypto Erase sanitize operation
+</p>
+</dd>
+<dt class="hdlist1">
+-p &lt;overwrite-pattern&gt;
+</dt>
+<dt class="hdlist1">
+--ovrpat=&lt;overwrite-pattern&gt;
+</dt>
+<dd>
+<p>
+    Overwrite Pattern:
+    This field is ignored unless the Sanitize Action field in
+    Command Dword 10 is set to 011b (i.e., Overwrite). This field
+    specifies a 32-bit pattern that is used for the Overwrite
+    sanitize operation.
+</p>
+</dd>
+</dl></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_examples">EXAMPLES</h2>
+<div class="sectionbody">
+<div class="ulist"><ul>
+<li>
+<p>
+Has the program issue Sanitize Command :
+</p>
+<div class="listingblock">
+<div class="content">
+<pre><code># nvme sanitize /dev/nvme0n1 -a 0x02
+# nvme sanitize /dev/nvme0n1 --sanact=0x01</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
+ 2017-06-28 18:52:37 PDT
+</div>
+</div>
+</body>
+</html>
diff --git a/Documentation/nvme-sanitize.txt b/Documentation/nvme-sanitize.txt
new file mode 100644
index 0000000..b1d9a0e
--- /dev/null
+++ b/Documentation/nvme-sanitize.txt
@@ -0,0 +1,93 @@
+nvme-sanitize(1)
+================
+
+NAME
+----
+nvme-sanitize - Send NVMe Sanitize Command, return result
+
+SYNOPSIS
+--------
+[verse]
+'nvme sanitize' <device> [--no-dealloc | -d]
+              [--oipbp | -i]
+              [--owpass=<overwrite-pass-count> | -n <overwrite-pass-count>]
+              [--ause | -u]
+              [--sanact=<action> | -a <action>]
+              [--ovrpat=<overwrite-pattern> | -p <overwrite-pattern>]
+
+DESCRIPTION
+-----------
+For the NVMe device given, sends a Sanitize command and
+provides the result.
+
+The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0).
+
+On success it returns 0, error code otherwise.
+
+OPTIONS
+-------
+-d::
+--no-delloc::
+    No Deallocate After Sanitize:
+    If set, then the controller shall not deallocate any logical
+    blocks as a result of successfully completing the sanitize
+    operation. If cleared, then the controller should deallocate
+    logical blocks as a result of successfully completing the
+    sanitize operation.  This bit shall be ignored if the Sanitize
+    Action field is set to 001b (i.e., Exit Failure Mode).
+
+-i::
+--oipbp::
+    Overwrite Invert Pattern Between Passes:
+    If set, then the Overwrite Pattern shall be inverted between
+    passes. If cleared, then the overwrite pattern shall not be
+    inverted between passes. This bit shall be ignored unless the
+    Sanitize Action field is set to 011b (i.e., Overwrite).
+
+-n <overwrite-pass-count>::
+--owpass=<overwrite-pass-count>::
+    Overwrite Pass Count:
+    This field specifies the number of overwrite passes (i.e.,
+    how many times the media is to be overwritten) using the data
+    from the Overwrite Pattern field of this command. A value of 0
+    specifies 16 overwrite passes. This field shall be ignored
+    unless the Sanitize Action field is set to 011b (i.e., Overwrite).
+
+-u::
+--ause::
+    Allow Unrestricted Sanitize Exit:
+    If set, then the sanitize operation is performed in unrestricted
+    completion mode. If cleared then the sanitize operation is
+    performed in restricted completion mode. This bit shall be ignored
+    if the Sanitize Action field is set to 001b (i.e., Exit Failure Mode).
+
+-a <action>::
+--sanact=<action>::
+    Sanitize Action:
+    000b - Reserved
+    001b - Exit Failure Mode
+    010b - Start a Block Erase sanitize operation
+    011b - Start an Overwrite sanitize operation
+    100b - Start a Crypto Erase sanitize operation
+
+-p <overwrite-pattern>::
+--ovrpat=<overwrite-pattern>::
+    Overwrite Pattern:
+    This field is ignored unless the Sanitize Action field in
+    Command Dword 10 is set to 011b (i.e., Overwrite). This field
+    specifies a 32-bit pattern that is used for the Overwrite
+    sanitize operation.
+
+EXAMPLES
+--------
+* Has the program issue Sanitize Command :
++
+------------
+# nvme sanitize /dev/nvme0n1 -a 0x02
+# nvme sanitize /dev/nvme0n1 --sanact=0x01
+
+------------
+
+NVME
+----
+Part of the nvme-user suite.
-- 
2.7.4

[PATCH 3/4] nvme-cli : add support for retrieving sanitize log.

[Chaitanya Kulkarni]

This adds support for retrieving and printing NVMe sanitize log
page. For more details please look into NVM Express 1.3
specification.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at hgst.com>
---
 linux/nvme.h   | 23 +++++++++++++++++++++-
 nvme-builtin.h |  1 +
 nvme.c         | 62 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 85 insertions(+), 1 deletion(-)

diff --git a/linux/nvme.h b/linux/nvme.h
index 28ab9b8..19354a5 100644
--- a/linux/nvme.h
+++ b/linux/nvme.h
@@ -693,13 +693,15 @@ enum {
 	NVME_LOG_FW_SLOT	= 0x03,
 	NVME_LOG_DISC		= 0x70,
 	NVME_LOG_RESERVATION	= 0x80,
+	NVME_LOG_SANITIZE	= 0x81,
 	NVME_FWACT_REPL		= (0 << 3),
 	NVME_FWACT_REPL_ACTV	= (1 << 3),
 	NVME_FWACT_ACTV		= (2 << 3),
 };
 
-/* Sanitize */
+/* Sanitize and Sanitize Monitor/Log */
 enum {
+	/* Sanitize */
 	NVME_SANITIZE_NO_DEALLOC		= 0x00000200,
 	NVME_SANITIZE_OIPBP				= 0x00000100,
 	NVME_SANITIZE_OWPASS_SHIFT		= 0x00000004,
@@ -708,6 +710,15 @@ enum {
 	NVME_SANITIZE_ACT_OVERWRITE		= 0x00000003,
 	NVME_SANITIZE_ACT_BLOCK_ERASE	= 0x00000002,
 	NVME_SANITIZE_ACT_EXIT			= 0x00000001,
+
+	/* Sanitize Monitor/Log */
+	NVME_SANITIZE_LOG_DATA_LEN				= 0x0014,
+	NVME_SANITIZE_LOG_GLOBAL_DATA_ERASED	= 0x0100,
+	NVME_SANITIZE_LOG_STATUS_MASK			= 0x0007,
+	NVME_SANITIZE_LOG_NEVER_SANITIZED		= 0x0000,
+	NVME_SANITIZE_LOG_COMPLETED_SUCCESS		= 0x0001,
+	NVME_SANITIZE_LOG_IN_PROGESS			= 0x0002,
+	NVME_SANITIZE_LOG_COMPLETED_FAILED		= 0x0003,
 };
 
 struct nvme_identify {
@@ -832,6 +843,16 @@ struct nvme_get_log_page_command {
 	__u32			rsvd14[2];
 };
 
+/* Sanitize Log Page */
+struct nvme_sanitize_log_page {
+	__le16			progress;
+	__le16			status;
+	__le32			cdw10_info;
+	__le32			est_ovrwrt_time;
+	__le32			est_blk_erase_time;
+	__le32			est_crypto_erase_time;
+};
+
 /*
  * Fabrics subcommands.
  */
diff --git a/nvme-builtin.h b/nvme-builtin.h
index b4cd3ba..2143ffd 100644
--- a/nvme-builtin.h
+++ b/nvme-builtin.h
@@ -43,6 +43,7 @@ COMMAND_LIST(
 	ENTRY("write-zeroes", "Submit a write zeroes command, return results", write_zeroes)
 	ENTRY("write-uncor", "Submit a write uncorrectable command, return results", write_uncor)
 	ENTRY("sanitize", "Submit a sanitize command", sanitize)
+	ENTRY("sanitize-log", "Retrive sanitize log, show it", sanitize_log)
 	ENTRY("reset", "Resets the controller", reset)
 	ENTRY("subsystem-reset", "Resets the controller", subsystem_reset)
 	ENTRY("show-regs", "Shows the controller registers. Requires admin character device", show_registers)
diff --git a/nvme.c b/nvme.c
index 8507cd3..40fb3df 100644
--- a/nvme.c
+++ b/nvme.c
@@ -422,6 +422,68 @@ static int get_log(int argc, char **argv, struct command *cmd, struct plugin *pl
 	}
 }
 
+static const char * sanitize_mon_status_to_string(__u16 status)
+{
+	const char * str;
+
+	switch (status & NVME_SANITIZE_LOG_STATUS_MASK) {
+	case NVME_SANITIZE_LOG_NEVER_SANITIZED:
+		str = "NVM Subsystem has never been sanitized.";
+		break;
+	case NVME_SANITIZE_LOG_COMPLETED_SUCCESS:
+		str = "Most Recent Sanitize Command Completed Successfully.";
+		break;
+	case NVME_SANITIZE_LOG_IN_PROGESS:
+		str = "Sanitize in Progress.";
+		break;
+	case NVME_SANITIZE_LOG_COMPLETED_FAILED:
+		str = "Most Recent Sanitize Command Failed.";
+		break;
+	default:
+		str = "Unknown.";
+	}
+
+	return str;
+}
+
+static int sanitize_log(int argc, char **argv, struct command *command, struct plugin *plugin)
+{
+	char *desc = "Retrieve sanitize log and show it.";
+	int fd;
+	int ret;
+	__u8 output[NVME_SANITIZE_LOG_DATA_LEN] = {0};
+	struct nvme_sanitize_log_page *slp;
+	double progress_percent;
+	const struct argconfig_commandline_options command_line_options[] = {
+		{ NULL, '\0', NULL, CFG_NONE, NULL, no_argument, desc},
+		{NULL}
+	};
+
+	fd = parse_and_open(argc, argv, desc, command_line_options, NULL, 0);
+	if (fd < 0)
+		return fd;
+
+	ret = nvme_get_log(fd, 0x01, NVME_LOG_SANITIZE, NVME_SANITIZE_LOG_DATA_LEN, output);
+	fprintf(stderr, "NVMe Status:%s(%x)\n", nvme_status_to_string(ret), ret);
+	if (ret != 0)
+		return ret;
+
+	slp = (struct nvme_sanitize_log_page *) output;
+	printf("Sanitize status                     = 0x%0x\n", slp->status);
+	printf("%s\n", sanitize_mon_status_to_string(slp->status));
+
+	if ((slp->status & NVME_SANITIZE_LOG_STATUS_MASK) == NVME_SANITIZE_LOG_IN_PROGESS) {
+		progress_percent = (((double)le32_to_cpu(slp->progress) * 100) / 0x10000);
+		printf("Sanitize Progress (percentage)      = %f%%\n", progress_percent);
+	} else {
+		if (slp->status & NVME_SANITIZE_LOG_GLOBAL_DATA_ERASED)
+			printf("Global Data Erased Set\n");
+		else
+			printf("Global Data Erased Cleared\n");
+	}
+	return ret;
+}
+
 static int list_ctrl(int argc, char **argv, struct command *cmd, struct plugin *plugin)
 {
 	const char *desc = "Show controller list information for the subsystem the "\
-- 
2.7.4

[PATCH 4/4] nvme-cli : add sanitize-log command documentation.

[Chaitanya Kulkarni]

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at hgst.com>
---
 Documentation/nvme-sanitize-log.1    | 126 ++++++
 Documentation/nvme-sanitize-log.html | 848 +++++++++++++++++++++++++++++++++++
 Documentation/nvme-sanitize-log.txt  |  67 +++
 3 files changed, 1041 insertions(+)
 create mode 100644 Documentation/nvme-sanitize-log.1
 create mode 100644 Documentation/nvme-sanitize-log.html
 create mode 100644 Documentation/nvme-sanitize-log.txt

diff --git a/Documentation/nvme-sanitize-log.1 b/Documentation/nvme-sanitize-log.1
new file mode 100644
index 0000000..d31dc69
--- /dev/null
+++ b/Documentation/nvme-sanitize-log.1
@@ -0,0 +1,126 @@
+'\" t
+.\"     Title: nvme-sanitize-log
+.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
+.\"      Date: 06/28/2017
+.\"    Manual: NVMe Manual
+.\"    Source: NVMe
+.\"  Language: English
+.\"
+.TH "NVME\-SANITIZE\-LOG" "1" "06/28/2017" "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-sanitize-log \- Send NVMe sanitize\-log Command, return result
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme sanitize\-log\fR <device>
+.fi
+.SH "DESCRIPTION"
+.sp
+Retrieves the NVMe Sanitize log page from an NVMe device and provides the status of sanitize command\&.
+.sp
+The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0)\&.
+.sp
+Expected status and description :\-
+.TS
+allbox tab(:);
+ltB ltB.
+T{
+Status Code
+T}:T{
+Description
+T}
+.T&
+lt lt
+lt lt
+lt lt
+lt lt
+lt lt.
+T{
+.sp
+0x0000
+T}:T{
+.sp
+NVM subsystem has never been sanitized\&.
+T}
+T{
+.sp
+0x0001
+T}:T{
+.sp
+The most recent sanitize operation completed successfully\&.
+T}
+T{
+.sp
+0x0002
+T}:T{
+.sp
+A sanitize operation is currently in progress\&.
+T}
+T{
+.sp
+0x0003
+T}:T{
+.sp
+The most recent sanitize operation failed\&.
+T}
+T{
+.sp
+0x0100
+T}:T{
+.sp
+Global Data Erased bit If set to 1 then non\-volatile storage in the NVM subsystem has not been written to: a) since being manufactured and the NVM subsystem has never been sanitized; or b) since the most recent successful sanitize operation\&. If cleared to 0, then non\-volatile storage in the NVM subsystem has been written to: a) since being manufactured and the NVM subsystem has never been sanitized; or b) since the most recent successful sanitize operation of the NVM subsystem\&.
+T}
+.TE
+.sp 1
+.sp
+Sanitize Progress \- percentage complete
+.sp
+On success it returns 0, error code otherwise\&.
+.SH "OPTIONS"
+.sp
+No options yet\&.
+.SH "EXAMPLES"
+.sp
+.RS 4
+.ie n \{\
+\h'-04'\(bu\h'+03'\c
+.\}
+.el \{\
+.sp -1
+.IP \(bu 2.3
+.\}
+Has the program issue Sanitize\-log Command :
+.sp
+.if n \{\
+.RS 4
+.\}
+.nf
+# nvme sanitize\-log /dev/nvme0
+.fi
+.if n \{\
+.RE
+.\}
+.RE
+.SH "NVME"
+.sp
+Part of the nvme\-user suite\&.
diff --git a/Documentation/nvme-sanitize-log.html b/Documentation/nvme-sanitize-log.html
new file mode 100644
index 0000000..2b2c5f0
--- /dev/null
+++ b/Documentation/nvme-sanitize-log.html
@@ -0,0 +1,848 @@
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+<body class="manpage">
+<div id="header">
+<h1>
+nvme-sanitize-log(1) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nvme-sanitize-log -
+   Send NVMe sanitize-log 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 sanitize-log</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>Retrieves the NVMe Sanitize log page from an NVMe device and provides the
+status of sanitize command.</p></div>
+<div class="paragraph"><p>The &lt;device&gt; parameter is mandatory NVMe character device (ex: /dev/nvme0).</p></div>
+<div class="paragraph"><p>Expected status and description :-</p></div>
+<div class="tableblock">
+<table rules="all"
+width="100%"
+frame="border"
+cellspacing="0" cellpadding="4">
+<col width="50%" />
+<col width="50%" />
+<thead>
+<tr>
+<th align="left" valign="top">Status Code </th>
+<th align="left" valign="top">Description</th>
+</tr>
+</thead>
+<tbody>
+<tr>
+<td align="left" valign="top"><p class="table">0x0000</p></td>
+<td align="left" valign="top"><p class="table">NVM subsystem has never been sanitized.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">0x0001</p></td>
+<td align="left" valign="top"><p class="table">The most recent sanitize operation completed successfully.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">0x0002</p></td>
+<td align="left" valign="top"><p class="table">A sanitize operation is currently in progress.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">0x0003</p></td>
+<td align="left" valign="top"><p class="table">The most recent sanitize operation failed.</p></td>
+</tr>
+<tr>
+<td align="left" valign="top"><p class="table">0x0100</p></td>
+<td align="left" valign="top"><p class="table">Global Data Erased bit
+If set to 1 then non-volatile storage in the NVM subsystem has
+not been written to:
+    a) since being manufactured and the NVM subsystem has never been sanitized; or
+    b) since the most recent successful sanitize operation.
+If cleared to 0, then non-volatile storage in the NVM subsystem has been written to:
+    a) since being manufactured and the NVM subsystem has never been sanitized; or
+    b) since the most recent successful sanitize operation of the NVM subsystem.</p></td>
+</tr>
+</tbody>
+</table>
+</div>
+<div class="paragraph"><p>Sanitize Progress - percentage complete</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="paragraph"><p>No options yet.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_examples">EXAMPLES</h2>
+<div class="sectionbody">
+<div class="ulist"><ul>
+<li>
+<p>
+Has the program issue Sanitize-log Command :
+</p>
+<div class="listingblock">
+<div class="content">
+<pre><code># nvme sanitize-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
+ 2017-06-28 11:25:21 PDT
+</div>
+</div>
+</body>
+</html>
diff --git a/Documentation/nvme-sanitize-log.txt b/Documentation/nvme-sanitize-log.txt
new file mode 100644
index 0000000..a4ff729
--- /dev/null
+++ b/Documentation/nvme-sanitize-log.txt
@@ -0,0 +1,67 @@
+nvme-sanitize-log(1)
+====================
+
+NAME
+----
+nvme-sanitize-log - Send NVMe sanitize-log Command, return result
+
+SYNOPSIS
+--------
+[verse]
+'nvme sanitize-log' <device>
+
+DESCRIPTION
+-----------
+Retrieves the NVMe Sanitize log page from an NVMe device and provides the
+status of sanitize command.
+
+The <device> parameter is mandatory NVMe character device (ex: /dev/nvme0).
+
+Expected status and description :-
+
+[cols="2*", options="header"]
+|===
+|Status Code |Description
+
+|0x0000
+|NVM subsystem has never been sanitized.
+
+|0x0001
+|The most recent sanitize operation completed successfully.
+
+|0x0002
+|A sanitize operation is currently in progress.
+
+|0x0003
+|The most recent sanitize operation failed.
+
+|0x0100
+|Global Data Erased bit
+If set to 1 then non-volatile storage in the NVM subsystem has
+not been written to:
+    a) since being manufactured and the NVM subsystem has never been sanitized; or
+    b) since the most recent successful sanitize operation.
+If cleared to 0, then non-volatile storage in the NVM subsystem has been written to:
+    a) since being manufactured and the NVM subsystem has never been sanitized; or
+    b) since the most recent successful sanitize operation of the NVM subsystem.
+|===
+
+Sanitize Progress - percentage complete
+
+On success it returns 0, error code otherwise.
+
+OPTIONS
+-------
+No options yet.
+
+EXAMPLES
+--------
+* Has the program issue Sanitize-log Command :
++
+------------
+# nvme sanitize-log /dev/nvme0
+------------
+
+NVME
+----
+Part of the nvme-user suite.
-- 
2.7.4

[PATCH 1/4] nvme-cli : add support for sanitize command.

[Keith Busch]

On Wed, Jun 28, 2017@07:19:25PM -0700, Chaitanya Kulkarni wrote:
> +	const struct argconfig_commandline_options command_line_options[] = {
> +		{"no_dealloc", 'd', "", CFG_NONE, &cfg.no_dealloc, no_argument, no_dealloc_desc},

Just a minor request, this tool uses '-' instead of '_' for compound
word long options, and I think keeping that consistency is a good thing.

Otherwise, this looks great.

[PATCH 1/4] nvme-cli : add support for sanitize command.

[Keith Busch]

On Thu, Jun 29, 2017@12:44:43PM -0400, Keith Busch wrote:
> On Wed, Jun 28, 2017@07:19:25PM -0700, Chaitanya Kulkarni wrote:
> > +	const struct argconfig_commandline_options command_line_options[] = {
> > +		{"no_dealloc", 'd', "", CFG_NONE, &cfg.no_dealloc, no_argument, no_dealloc_desc},
> 
> Just a minor request, this tool uses '-' instead of '_' for compound
> word long options, and I think keeping that consistency is a good thing.

Ah, it was just this one that used '_'. The documentation used '-'
already. I made the fix in this patch and applied all of them.

Thanks!