Adding upstream version 2.8.upstream/2.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 79 insertions, 0 deletions

diff --git a/Documentation/nvme-persistent-event-log.txt b/Documentation/nvme-persistent-event-log.txt
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+persistent-event-log(1)
+=======================
+
+NAME
+----
+nvme-persistent-event-log - Send NVMe persistent event log page request,
+returns result and log
+
+SYNOPSIS
+--------
+[verse]
+'nvme persistent-event-log' <device> [--action=<action> | -a <action>]
+			[--log-len=<log-len> | -l <log-len>] [--raw-binary | -b]
+			[--output-format=<fmt> | -o <fmt>] [--verbose | -v]
+
+DESCRIPTION
+-----------
+Retrieves the NVMe persistent event log page from an NVMe device
+and provides the returned structure.
+
+The <device> parameter is mandatory and may be either the NVMe character
+device (ex: /dev/nvme0), or a namespace block device (ex: /dev/nvme0n1).
+
+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.
+
+OPTIONS
+-------
+-a <action>::
+--action=<action>::
+	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)
+
+-l <log-len>::
+--log-len=<log-len>::
+	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.
+
+-b::
+--raw-binary::
+	Print the raw persistent event log buffer to stdout.
+
+-o <fmt>::
+--output-format=<fmt>::
+	Set the reporting format to 'normal', 'json' or 'binary'. Only one
+	output format can be used at a time.
+
+-v::
+--verbose::
+	Increase the information detail in the output.
+
+EXAMPLES
+--------
+* Print the persistent event log page in a human readable format:
++
+------------
+# nvme persistent-event-log /dev/nvme0
+------------
++
+
+* Print the raw persistent event log to a file:
++
+------------
+# nvme persistent-event-log /dev/nvme0 --raw-binary > persistent_log.raw
+------------
++
+It is probably a bad idea to not redirect stdout when using this mode.
+
+NVME
+----
+Part of the nvme-user suite