--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"\r
+ "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">\r
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">\r
+<head>\r
+<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />\r
+<meta name="generator" content="AsciiDoc 8.6.7" />\r
+<title>nvme-zeroes(1)</title>\r
+<style type="text/css">\r
+/* Shared CSS for AsciiDoc xhtml11 and html5 backends */\r
+\r
+/* Default font. */\r
+body {\r
+ font-family: Georgia,serif;\r
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+\r
+/*\r
+ * xhtml11 specific\r
+ *\r
+ * */\r
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+ font-size: inherit;\r
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+}\r
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+ border-top-style: none;\r
+ border-bottom-style: none;\r
+}\r
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+/*\r
+ * html5 specific\r
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+ font-family: "Courier New", Courier, monospace;\r
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+ border-style: solid;\r
+ border-color: #527bbd;\r
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+ vertical-align: middle;\r
+}\r
+th.tableblock.valign-bottom, td.tableblock.valign-bottom {\r
+ vertical-align: bottom;\r
+}\r
+\r
+\r
+/*\r
+ * manpage specific\r
+ *\r
+ * */\r
+\r
+body.manpage h1 {\r
+ padding-top: 0.5em;\r
+ padding-bottom: 0.5em;\r
+ border-top: 2px solid silver;\r
+ border-bottom: 2px solid silver;\r
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+ border-style: none;\r
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+body.manpage div.sectionbody {\r
+ margin-left: 3em;\r
+}\r
+\r
+@media print {\r
+ body.manpage div#toc { display: none; }\r
+}\r
+</style>\r
+<script type="text/javascript">\r
+/*<+'])');\r
+ // Function that scans the DOM tree for header elements (the DOM2\r
+ // nodeIterator API would be a better technique but not supported by all\r
+ // browsers).\r
+ var iterate = function (el) {\r
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+ if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {\r
+ var mo = re.exec(i.tagName);\r
+ if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {\r
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+ }\r
+ iterate(i);\r
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+ }\r
+ }\r
+ iterate(el);\r
+ return result;\r
+ }\r
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+ if (!toc) {\r
+ return;\r
+ }\r
+\r
+ // Delete existing TOC entries in case we're reloading the TOC.\r
+ var tocEntriesToRemove = [];\r
+ var i;\r
+ for (i = 0; i < toc.childNodes.length; i++) {\r
+ var entry = toc.childNodes[i];\r
+ if (entry.nodeName.toLowerCase() == 'div'\r
+ && entry.getAttribute("class")\r
+ && entry.getAttribute("class").match(/^toclevel/))\r
+ tocEntriesToRemove.push(entry);\r
+ }\r
+ for (i = 0; i < tocEntriesToRemove.length; i++) {\r
+ toc.removeChild(tocEntriesToRemove[i]);\r
+ }\r
+\r
+ // Rebuild TOC entries.\r
+ var entries = tocEntries(document.getElementById("content"), toclevels);\r
+ for (var i = 0; i < entries.length; ++i) {\r
+ var entry = entries[i];\r
+ if (entry.element.id == "")\r
+ entry.element.id = "_toc_" + i;\r
+ var a = document.createElement("a");\r
+ a.href = "#" + entry.element.id;\r
+ a.appendChild(document.createTextNode(entry.text));\r
+ var div = document.createElement("div");\r
+ div.appendChild(a);\r
+ div.className = "toclevel" + entry.toclevel;\r
+ toc.appendChild(div);\r
+ }\r
+ if (entries.length == 0)\r
+ toc.parentNode.removeChild(toc);\r
+},\r
+\r
+\r
+/////////////////////////////////////////////////////////////////////\r
+// Footnotes generator\r
+/////////////////////////////////////////////////////////////////////\r
+\r
+/* Based on footnote generation code from:\r
+ * http://www.brandspankingnew.net/archive/2005/07/format_footnote.html\r
+ */\r
+\r
+footnotes: function () {\r
+ // Delete existing footnote entries in case we're reloading the footnodes.\r
+ var i;\r
+ var noteholder = document.getElementById("footnotes");\r
+ if (!noteholder) {\r
+ return;\r
+ }\r
+ var entriesToRemove = [];\r
+ for (i = 0; i < noteholder.childNodes.length; i++) {\r
+ var entry = noteholder.childNodes[i];\r
+ if (entry.nodeName.toLowerCase() == 'div' && entry.getAttribute("class") == "footnote")\r
+ entriesToRemove.push(entry);\r
+ }\r
+ for (i = 0; i < entriesToRemove.length; i++) {\r
+ noteholder.removeChild(entriesToRemove[i]);\r
+ }\r
+\r
+ // Rebuild footnote entries.\r
+ var cont = document.getElementById("content");\r
+ var spans = cont.getElementsByTagName("span");\r
+ var refs = {};\r
+ var n = 0;\r
+ for (i=0; i<spans.length; i++) {\r
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+ n++;\r
+ var note = spans[i].getAttribute("data-note");\r
+ if (!note) {\r
+ // Use [\s\S] in place of . so multi-line matches work.\r
+ // Because JavaScript has no s (dotall) regex flag.\r
+ note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1];\r
+ spans[i].innerHTML =\r
+ "[<a id='_footnoteref_" + n + "' href='#_footnote_" + n +\r
+ "' title='View footnote' class='footnote'>" + n + "</a>]";\r
+ spans[i].setAttribute("data-note", note);\r
+ }\r
+ noteholder.innerHTML +=\r
+ "<div class='footnote' id='_footnote_" + n + "'>" +\r
+ "<a href='#_footnoteref_" + n + "' title='Return to text'>" +\r
+ n + "</a>. " + note + "</div>";\r
+ var id =spans[i].getAttribute("id");\r
+ if (id != null) refs["#"+id] = n;\r
+ }\r
+ }\r
+ if (n == 0)\r
+ noteholder.parentNode.removeChild(noteholder);\r
+ else {\r
+ // Process footnoterefs.\r
+ for (i=0; i<spans.length; i++) {\r
+ if (spans[i].className == "footnoteref") {\r
+ var href = spans[i].getElementsByTagName("a")[0].getAttribute("href");\r
+ href = href.match(/#.*/)[0]; // Because IE return full URL.\r
+ n = refs[href];\r
+ spans[i].innerHTML =\r
+ "[<a href='#_footnote_" + n +\r
+ "' title='View footnote' class='footnote'>" + n + "</a>]";\r
+ }\r
+ }\r
+ }\r
+},\r
+\r
+install: function(toclevels) {\r
+ var timerId;\r
+\r
+ function reinstall() {\r
+ asciidoc.footnotes();\r
+ if (toclevels) {\r
+ asciidoc.toc(toclevels);\r
+ }\r
+ }\r
+\r
+ function reinstallAndRemoveTimer() {\r
+ clearInterval(timerId);\r
+ reinstall();\r
+ }\r
+\r
+ timerId = setInterval(reinstall, 500);\r
+ if (document.addEventListener)\r
+ document.addEventListener("DOMContentLoaded", reinstallAndRemoveTimer, false);\r
+ else\r
+ window.onload = reinstallAndRemoveTimer;\r
+}\r
+\r
+}\r
+asciidoc.install();\r
+/*]]>*/\r
+</script>\r
+</head>\r
+<body class="manpage">\r
+<div id="header">\r
+<h1>\r
+nvme-zeroes(1) Manual Page\r
+</h1>\r
+<h2>NAME</h2>\r
+<div class="sectionbody">\r
+<p>nvme-write-zeroes -\r
+ Send an NVMe write zeroes command, return results\r
+</p>\r
+</div>\r
+</div>\r
+<div id="content">\r
+<div class="sect1">\r
+<h2 id="_synopsis">SYNOPSIS</h2>\r
+<div class="sectionbody">\r
+<div class="verseblock">\r
+<pre class="content"><em>nvme-write-zeroes</em> <device> [--start-block=<slba> | -s <slba>]\r
+ [--block-count=<nlb> | -c <nlb>]\r
+ [--ref-tag=<reftag> | -r <reftag>]\r
+ [--prinfo=<prinfo> | -p <prinfo>]\r
+ [--app-tag-mask=<appmask> | -m <appmask>]\r
+ [--app-tag=<apptag> | -a <apptag>]\r
+ [--limited-retry | -l]\r
+ [--force-unit-access | -f]</pre>\r
+<div class="attribution">\r
+</div></div>\r
+</div>\r
+</div>\r
+<div class="sect1">\r
+<h2 id="_description">DESCRIPTION</h2>\r
+<div class="sectionbody">\r
+<div class="paragraph"><p>The Write Zeroes command is used to set a range of logical blocks to 0.</p></div>\r
+</div>\r
+</div>\r
+<div class="sect1">\r
+<h2 id="_options">OPTIONS</h2>\r
+<div class="sectionbody">\r
+<div class="dlist"><dl>\r
+<dt class="hdlist1">\r
+--start-block=<slba>\r
+</dt>\r
+<dt class="hdlist1">\r
+-s <slba>\r
+</dt>\r
+<dd>\r
+<p>\r
+ Start block.\r
+</p>\r
+</dd>\r
+</dl></div>\r
+</div>\r
+</div>\r
+<div class="sect1">\r
+<h2 id="_examples">EXAMPLES</h2>\r
+<div class="sectionbody">\r
+<div class="paragraph"><p>No examples yet.</p></div>\r
+</div>\r
+</div>\r
+<div class="sect1">\r
+<h2 id="_nvme">NVME</h2>\r
+<div class="sectionbody">\r
+<div class="paragraph"><p>Part of the nvme-user suite</p></div>\r
+</div>\r
+</div>\r
+</div>\r
+<div id="footnotes"><hr /></div>\r
+<div id="footer">\r
+<div id="footer-text">\r
+Last updated 2016-03-02 08:06:42 MST\r
+</div>\r
+</div>\r
+</body>\r
+</html>\r
ENTRY(COMPARE, "compare", "Submit a Compare command, return results", compare) \
ENTRY(READ_CMD, "read", "Submit a read command, return results", read_cmd) \
ENTRY(WRITE_CMD, "write", "Submit a write command, return results", write_cmd) \
+ ENTRY(WRITE_ZEROES_CMD, "write-zeroes", "Submit a write command, return results", write_zeroes) \
ENTRY(REGISTERS, "show-regs", "Shows the controller registers. Requires admin character device", show_registers) \
ENTRY(VERSION, "version", "Shows the program version", version) \
ENTRY(HELP, "help", "Display this help", help)
get_dev(1, argc, argv);
if (!cfg.namespace_id) {
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr,
- "%s: non-block device requires namespace-id param\n",
- devicename);
- exit(ENOTBLK);
- }
cfg.namespace_id = nvme_get_nsid(fd);
if (cfg.namespace_id <= 0) {
perror(devicename);
int nsid;
open_dev(argv[1]);
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr, "%s: requesting nsid from non-block device\n",
- devicename);
- exit(ENOTBLK);
- }
nsid = nvme_get_nsid(fd);
if (nsid <= 0) {
perror(devicename);
return err;
}
+static int write_zeroes(int argc, char **argv)
+{
+ int err;
+ __u16 control = 0;
+ const char *desc = "write_zeroes: The Write Zeroes command is used to set a "\
+ "range of logical blocks to zero.";
+ const char *namespace_id = "desired namespace";
+ const char *start_block = "64-bit addr of first block to access";
+ const char *block_count = "number of blocks on device to access";
+ const char *limited_retry = "limit num. media access attempts";
+ const char *force = "force device to commit data before command completes";
+ const char *prinfo = "PI and check field";
+ const char *ref_tag = "reference tag (for end to end PI)";
+ const char *app_tag_mask = "app tag mask (for end to end PI)";
+ const char *app_tag = "app tag (for end to end PI)";
+
+ struct config {
+ __u64 start_block;
+ __u32 namespace_id;
+ __u32 ref_tag;
+ __u32 app_tag;
+ __u16 block_count;
+ __u8 prinfo;
+ __u8 app_tag_mask;
+ __u8 limited_retry;
+ __u8 force_unit_access;
+ };
+
+ struct config cfg = {
+ .start_block = 0,
+ .block_count = 0,
+ .prinfo = 0,
+ .ref_tag = 0,
+ .app_tag_mask = 0,
+ .app_tag = 0,
+ };
+
+ const struct argconfig_commandline_options command_line_options[] = {
+ {"namespace-id", 'n', "NUM", CFG_POSITIVE, &cfg.namespace_id, required_argument, namespace_id},
+ {"start-block", 's', "NUM", CFG_LONG_SUFFIX, &cfg.start_block, required_argument, start_block},
+ {"block-count", 'c', "NUM", CFG_SHORT, &cfg.block_count, required_argument, block_count},
+ {"limited-retry", 'l', "", CFG_NONE, &cfg.limited_retry, no_argument, limited_retry},
+ {"force-unit-access", 'f', "", CFG_NONE, &cfg.force_unit_access, no_argument, force},
+ {"prinfo", 'p', "NUM", CFG_BYTE, &cfg.prinfo, required_argument, prinfo},
+ {"ref-tag", 'r', "NUM", CFG_POSITIVE, &cfg.ref_tag, required_argument, ref_tag},
+ {"app-tag-mask", 'm', "NUM", CFG_BYTE, &cfg.app_tag_mask, required_argument, app_tag_mask},
+ {"app-tag", 'a', "NUM", CFG_POSITIVE, &cfg.app_tag, required_argument, app_tag},
+ {0}
+ };
+
+ argconfig_parse(argc, argv, desc, command_line_options,
+ &cfg, sizeof(cfg));
+
+ get_dev(1, argc, argv);
+
+ if (cfg.prinfo > 0xf)
+ return EINVAL;
+
+ control |= (cfg.prinfo << 10);
+ if (cfg.limited_retry)
+ control |= NVME_RW_LR;
+ if (cfg.force_unit_access)
+ control |= NVME_RW_FUA;
+
+ if (!cfg.namespace_id) {
+ cfg.namespace_id = nvme_get_nsid(fd);
+ if (cfg.namespace_id <= 0) {
+ fprintf(stderr,
+ "%s: failed to return namespace id\n",
+ devicename);
+ return errno;
+ }
+ }
+
+ err = nvme_write_zeros(fd, cfg.namespace_id, cfg.start_block, cfg.block_count,
+ control, cfg.ref_tag, cfg.app_tag, cfg.app_tag_mask);
+ if (err < 0)
+ return errno;
+ else if (err != 0)
+ fprintf(stderr, "NVME Write Zeroes Command Error:%d\n", err);
+ else
+ printf("NVME Write Zeroes Success\n");
+ return err;
+}
+
static int dsm(int argc, char **argv)
{
const char *desc = "dsm: The Dataset Management command is used by the host to "\
}
if (!cfg.namespace_id) {
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr,
- "%s: non-block device requires namespace-id param\n",
- devicename);
- exit(ENOTBLK);
- }
cfg.namespace_id = nvme_get_nsid(fd);
if (cfg.namespace_id <= 0) {
fprintf(stderr,
get_dev(1, argc, argv);
if (!cfg.namespace_id) {
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr,
- "%s: non-block device requires namespace-id param\n",
- devicename);
- exit(ENOTBLK);
- }
cfg.namespace_id = nvme_get_nsid(fd);
if (cfg.namespace_id <= 0) {
fprintf(stderr,
get_dev(1, argc, argv);
if (!cfg.namespace_id) {
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr,
- "%s: non-block device requires namespace-id param\n",
- devicename);
- exit(ENOTBLK);
- }
cfg.namespace_id = nvme_get_nsid(fd);
if (cfg.namespace_id <= 0) {
fprintf(stderr,
get_dev(1, argc, argv);
if (!cfg.namespace_id) {
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr,
- "%s: non-block device requires namespace-id param\n",
- devicename);
- exit(ENOTBLK);
- }
cfg.namespace_id = nvme_get_nsid(fd);
if (cfg.namespace_id <= 0) {
fprintf(stderr,
get_dev(1, argc, argv);
if (!cfg.namespace_id) {
- if (!S_ISBLK(nvme_stat.st_mode)) {
- fprintf(stderr,
- "%s: non-block device requires namespace-id param\n",
- devicename);
- exit(ENOTBLK);
- }
cfg.namespace_id = nvme_get_nsid(fd);
if (cfg.namespace_id <= 0) {
fprintf(stderr,
const char *app_tag = "app tag (for end to end PI)";
const char *limited_retry = "limit num. media access attempts";
const char *latency = "output latency statistics";
- const char *force = "return data before command completes";
+ const char *force = "force device to commit data before command completes";
const char *show = "show command before sending";
const char *dry = "show command instead of sending";
projects / users / sagi / nvme-cli.git / commitdiff