[PATCH V2 2/2] nvme-cli: support to set the property for NVMe over Fabric
Guan Junxiong
guanjunxiong at huawei.com
Tue Dec 12 18:11:31 PST 2017
Signed-off-by: Guan Junxiong <guanjunxiong at huawei.com>
---
Documentation/nvme-set-property.1 | 51 +++
Documentation/nvme-set-property.html | 814 +++++++++++++++++++++++++++++++++++
Documentation/nvme-set-property.txt | 34 ++
nvme-builtin.h | 1 +
nvme-ioctl.c | 20 +
nvme-ioctl.h | 1 +
nvme-print.c | 19 +
nvme-print.h | 1 +
nvme.c | 52 +++
9 files changed, 993 insertions(+)
create mode 100644 Documentation/nvme-set-property.1
create mode 100644 Documentation/nvme-set-property.html
create mode 100644 Documentation/nvme-set-property.txt
diff --git a/Documentation/nvme-set-property.1 b/Documentation/nvme-set-property.1
new file mode 100644
index 0000000..0ade108
--- /dev/null
+++ b/Documentation/nvme-set-property.1
@@ -0,0 +1,51 @@
+'\" t
+.\" Title: nvme-set-property
+.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
+.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
+.\" Date: 06/28/2017
+.\" Manual: NVMe Manual
+.\" Source: NVMe
+.\" Language: English
+.\"
+.TH "NVME\-SET\-PROPERTY" "1" "11/24/2017" "NVMe" "NVMe Manual"
+.\" -----------------------------------------------------------------
+.\" * Define some portability stuff
+.\" -----------------------------------------------------------------
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+.\" http://bugs.debian.org/507673
+.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
+.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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+.\" -----------------------------------------------------------------
+.\" * set default formatting
+.\" -----------------------------------------------------------------
+.\" disable hyphenation
+.nh
+.\" disable justification (adjust text to left margin only)
+.ad l
+.\" -----------------------------------------------------------------
+.\" * MAIN CONTENT STARTS HERE *
+.\" -----------------------------------------------------------------
+.SH "NAME"
+nvme-set-propery \- Writes and shows the defined NVMe controller property for NVMe ove Fabric
+.SH "SYNOPSIS"
+.sp
+.nf
+\fInvme set\-property\fR <device> [\-\-offset=<offset> | \-n <nsid>]
+ [\-\-value=<val> | \-v <val>]
+.fi
+.SH "DESCRIPTION"
+.sp
+Writes and shows the defined NVMe controller property for NVMe ove Fabric\&. Please use it carefully\&.
+.SH "OPTIONS"
+.PP
+\-o <offset>, \-\-offset=<offset>
+.RS 4
+The offset of the property\&.
+.RE
+.SH "EXAMPLES"
+.RE
+.SH "NVME"
+.sp
+Part of the nvme\-user suite
diff --git a/Documentation/nvme-set-property.html b/Documentation/nvme-set-property.html
new file mode 100644
index 0000000..e365b3a
--- /dev/null
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@@ -0,0 +1,814 @@
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+<div id="header">
+<h1>
+nvme-set-property(1) Manual Page
+</h1>
+<h2>NAME</h2>
+<div class="sectionbody">
+<p>nvme-set-property -
+ Writes and shows the defined NVMe controller property for NVMe ove Fabric
+</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 set-property</em> <device> [--offset=<offset> | -o <offset> ]
+ [--value=<val> | -v <val> ]</pre>
+<div class="attribution">
+</div></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_description">DESCRIPTION</h2>
+<div class="sectionbody">
+<div class="paragraph"><p>Writes and shows the defined NVMe controller property for NVMe ove Fabric.</p></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_options">OPTIONS</h2>
+<div class="sectionbody">
+<div class="dlist"><dl>
+<dt class="hdlist1">
+-o
+</dt>
+<dt class="hdlist1">
+--offset
+</dt>
+<dd>
+<p>
+ The offset of the property
+</p>
+</dd>
+</dl></div>
+<dt class="hdlist1">
+-v
+</dt>
+<dt class="hdlist1">
+--value
+</dt>
+<dd>
+<p>
+ The value of the property to be set
+</p>
+</dd>
+</dl></div>
+</div>
+</div>
+<div class="sect1">
+<h2 id="_examples">EXAMPLES</h2>
+<div class="sectionbody">
+<div class="ulist"><ul>
+<li>
+<div class="listingblock">
+<div class="content">
+</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 2017-11-24 10:11:58 EST
+</div>
+</div>
+</body>
+</html>
diff --git a/Documentation/nvme-set-property.txt b/Documentation/nvme-set-property.txt
new file mode 100644
index 0000000..7c49058
--- /dev/null
+++ b/Documentation/nvme-set-property.txt
@@ -0,0 +1,34 @@
+nvme-set-property(1)
+=============
+
+NAME
+----
+nvme-set-property - Writes and shows the defined NVMe controller property
+for NVMe ove Fabric
+
+SYNOPSIS
+--------
+[verse]
+'nvme set-property' <device> [--offset=<offset> | -o <offset>] [--value=<val> | -v <val>]
+
+
+DESCRIPTION
+-----------
+Writes and shows the defined NVMe controller property for NVMe ove Fabric
+
+OPTIONS
+-------
+-o::
+--offset::
+ The offset of the property
+
+-v::
+--value:
+ The value of the property to be set
+
+EXAMPLES
+--------
+
+NVME
+----
+Part of the nvme-user suite
diff --git a/nvme-builtin.h b/nvme-builtin.h
index 432d79c..aa395bf 100644
--- a/nvme-builtin.h
+++ b/nvme-builtin.h
@@ -55,6 +55,7 @@ COMMAND_LIST(
ENTRY("gen-hostnqn", "Generate NVMeoF host NQN", gen_hostnqn_cmd)
ENTRY("dir-receive", "Submit a Directive Receive command, return results", dir_receive)
ENTRY("dir-send", "Submit a Directive Send command, return results", dir_send)
+ ENTRY("set-property", "Set a property and show the resulting value", set_property)
);
#endif
diff --git a/nvme-ioctl.c b/nvme-ioctl.c
index cf93340..3945824 100644
--- a/nvme-ioctl.c
+++ b/nvme-ioctl.c
@@ -526,6 +526,26 @@ int nvme_get_properties(int fd, void **pbar)
return ret;
}
+int nvme_set_property(int fd, int offset, int value)
+{
+ __le64 val = cpu_to_le64(value);
+ __le32 off = cpu_to_le32(offset);
+ bool is64bit;
+
+ switch (off) {
+ case NVME_REG_CAP:
+ case NVME_REG_ASQ:
+ case NVME_REG_ACQ:
+ is64bit = true;
+ break;
+ default:
+ is64bit = false;
+ }
+
+ return nvme_property(fd, nvme_fabrics_type_property_set,
+ off, &val, is64bit ? 1: 0);
+}
+
int nvme_get_feature(int fd, __u32 nsid, __u8 fid, __u8 sel, __u32 cdw11,
__u32 data_len, void *data, __u32 *result)
{
diff --git a/nvme-ioctl.h b/nvme-ioctl.h
index 90e2e18..7cc80c8 100644
--- a/nvme-ioctl.h
+++ b/nvme-ioctl.h
@@ -122,5 +122,6 @@ int nvme_dir_send(int fd, __u32 nsid, __u16 dspec, __u8 dtype, __u8 doper,
int nvme_dir_recv(int fd, __u32 nsid, __u16 dspec, __u8 dtype, __u8 doper,
__u32 data_len, __u32 dw12, void *data, __u32 *result);
int nvme_get_properties(int fd, void **pbar);
+int nvme_set_property(int fd, int offset, int value);
#endif /* _NVME_LIB_H */
diff --git a/nvme-print.c b/nvme-print.c
index 78945b3..ab0c2a2 100644
--- a/nvme-print.c
+++ b/nvme-print.c
@@ -1092,6 +1092,25 @@ char *nvme_feature_to_string(int feature)
}
}
+char *nvme_register_to_string(int reg)
+{
+ switch (reg) {
+ case NVME_REG_CAP: return "Controller Capabilities";
+ case NVME_REG_VS: return "Version";
+ case NVME_REG_INTMS: return "Interrupt Vector Mask Set";
+ case NVME_REG_INTMC: return "Interrupt Vector Mask Clear";
+ case NVME_REG_CC: return "Controller Configuration";
+ case NVME_REG_CSTS: return "Controller Status";
+ case NVME_REG_NSSR: return "NVM Subsystem Reset";
+ case NVME_REG_AQA: return "Admin Queue Attributes";
+ case NVME_REG_ASQ: return "Admin Submission Queue Base Address";
+ case NVME_REG_ACQ: return "Admin Completion Queue Base Address";
+ case NVME_REG_CMBLOC: return "Controller Memory Buffer Location";
+ case NVME_REG_CMBSZ: return "Controller Memory Buffer Size";
+ default: return "Unknown";
+ }
+}
+
char* nvme_select_to_string(int sel)
{
switch (sel) {
diff --git a/nvme-print.h b/nvme-print.h
index bae4929..f71c88f 100644
--- a/nvme-print.h
+++ b/nvme-print.h
@@ -33,6 +33,7 @@ void nvme_directive_show_fields(__u8 dtype, __u8 doper, unsigned int result, uns
char *nvme_status_to_string(__u32 status);
char *nvme_select_to_string(int sel);
char *nvme_feature_to_string(int feature);
+char *nvme_register_to_string(int reg);
void json_nvme_id_ctrl(struct nvme_id_ctrl *ctrl, unsigned int mode, void (*vendor_show)(__u8 *vs, struct json_object *root));
void json_nvme_id_ns(struct nvme_id_ns *ns, unsigned int flags);
diff --git a/nvme.c b/nvme.c
index dd674c3..e1faec9 100644
--- a/nvme.c
+++ b/nvme.c
@@ -1654,6 +1654,58 @@ static int show_registers(int argc, char **argv, struct command *cmd, struct plu
return 0;
}
+static int set_property(int argc, char **argv, struct command *cmd, struct plugin *plugin)
+{
+ const char *desc = "Writes and shows the defined NVMe controller property "\
+ "for NVMe ove Fabric";
+ const char *offset = "the offset of the property";
+ const char *value = "the value of the property to be set";
+ int fd, err;
+
+ struct config {
+ int offset;
+ int value;
+ };
+
+ struct config cfg = {
+ .offset = -1,
+ .value = -1,
+ };
+
+ const struct argconfig_commandline_options command_line_options[] = {
+ {"offset", 'o', "NUM", CFG_POSITIVE, &cfg.offset, required_argument, offset},
+ {"value", 'v', "NUM", CFG_POSITIVE, &cfg.value, required_argument, value},
+ {NULL}
+ };
+
+ fd = parse_and_open(argc, argv, desc, command_line_options, &cfg, sizeof(cfg));
+ if (fd < 0)
+ return fd;
+
+ if (cfg.offset == -1) {
+ fprintf(stderr, "offset required param");
+ return EINVAL;
+ }
+ if (cfg.value == -1) {
+ fprintf(stderr, "value required param");
+ return EINVAL;
+ }
+
+ err = nvme_set_property(fd, cfg.offset, cfg.value);
+ if (err < 0) {
+ perror("set-property");
+ return errno;
+ } else if (!err) {
+ printf("set-property: %02x (%s), value: %#08x\n", cfg.offset,
+ nvme_register_to_string(cfg.offset), cfg.value);
+ } else if (err > 0) {
+ fprintf(stderr, "NVMe Status: %s(%x)\n",
+ nvme_status_to_string(err), err);
+ }
+
+ return err;
+}
+
static int format(int argc, char **argv, struct command *cmd, struct plugin *plugin)
{
const char *desc = "Re-format a specified namespace on the "\
--
2.11.1
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