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Diffstat (limited to 'Documentation/nvme-persistent-event-log.1')
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diff --git a/Documentation/nvme-persistent-event-log.1 b/Documentation/nvme-persistent-event-log.1 new file mode 100644 index 0000000..4781586 --- /dev/null +++ b/Documentation/nvme-persistent-event-log.1 @@ -0,0 +1,123 @@ +'\" t +.\" Title: persistent-event-log +.\" Author: [FIXME: author] [see http://www.docbook.org/tdg5/en/html/author] +.\" Generator: DocBook XSL Stylesheets vsnapshot <http://docbook.sf.net/> +.\" Date: 02/14/2024 +.\" Manual: NVMe Manual +.\" Source: NVMe +.\" Language: English +.\" +.TH "PERSISTENT\-EVENT\-L" "1" "02/14/2024" "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-persistent-event-log \- Send NVMe persistent event log page request, returns result and log +.SH "SYNOPSIS" +.sp +.nf +\fInvme persistent\-event\-log\fR <device> [\-\-action=<action> | \-a <action>] + [\-\-log\-len=<log\-len> | \-l <log\-len>] [\-\-raw\-binary | \-b] + [\-\-output\-format=<fmt> | \-o <fmt>] [\-\-verbose | \-v] +.fi +.SH "DESCRIPTION" +.sp +Retrieves the NVMe persistent event log page from an NVMe device and provides the returned structure\&. +.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 +On success, the returned persistent event log structure may be returned in one of several ways depending on the option flags; the structure may parsed by the program and printed in a readable format or the raw buffer may be printed to stdout for another program to parse\&. +.SH "OPTIONS" +.PP +\-a <action>, \-\-action=<action> +.RS 4 +While try to retrieve this log action the controller shall take during processing this persistent log page command\&. This mandatory field, based on the value issued it may Read Log Data, Establish Context and Read Log Data or Release Context can occur\&. For More details see NVM Express 1\&.4 Spec\&. Section 5\&.14\&.1\&.13 Persistent Event Log (Log Identifier 0Dh) +.RE +.PP +\-l <log\-len>, \-\-log\-len=<log\-len> +.RS 4 +Allocates a buffer of <log\-len> bytes size and requests this many bytes be returned in the constructed NVMe command\&. This param is mandatory\&. If <log\-len> given is 0 and action is 0, it will read the Total Log Length(TLL) of the page\&. +.RE +.PP +\-b, \-\-raw\-binary +.RS 4 +Print the raw persistent event log buffer to stdout\&. +.RE +.PP +\-o <fmt>, \-\-output\-format=<fmt> +.RS 4 +Set the reporting format to +\fInormal\fR, +\fIjson\fR +or +\fIbinary\fR\&. Only one output format can be used at a time\&. +.RE +.PP +\-v, \-\-verbose +.RS 4 +Increase the information detail in the output\&. +.RE +.SH "EXAMPLES" +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Print the persistent event log page in a human readable format: +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme persistent\-event\-log /dev/nvme0 +.fi +.if n \{\ +.RE +.\} +.RE +.sp +.RS 4 +.ie n \{\ +\h'-04'\(bu\h'+03'\c +.\} +.el \{\ +.sp -1 +.IP \(bu 2.3 +.\} +Print the raw persistent event log to a file: +.sp +.if n \{\ +.RS 4 +.\} +.nf +# nvme persistent\-event\-log /dev/nvme0 \-\-raw\-binary > persistent_log\&.raw +.fi +.if n \{\ +.RE +.\} +.sp +It is probably a bad idea to not redirect stdout when using this mode\&. +.RE +.SH "NVME" +.sp +Part of the nvme\-user suite |