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authorDaniel Baumann <daniel.baumann@progress-linux.org>2021-07-02 20:40:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2021-07-02 20:40:30 +0000
commitdc597ce8df5ae6efd2728a2d7ba7d92486028f79 (patch)
tree55b9e9257eba4579667f9522368aa29f5be6754a /Documentation/nvme-set-feature.txt
parentInitial commit. (diff)
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Adding upstream version 1.12.upstream/1.12
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+nvme-set-feature(1)
+===================
+
+NAME
+----
+nvme-set-feature - Sets an NVMe feature, returns applicable results
+
+SYNOPSIS
+--------
+[verse]
+'nvme set-feature' <device> [--namespace-id=<nsid> | -n <nsid>]
+ [--feature-id=<fid> | -f <fid>] [--value=<value> | -v <value>]
+ [--data-len=<data-len> | -l <data-len>]
+ [--data=<data-file> | -d <data-file>]
+ [--save| -s]
+
+DESCRIPTION
+-----------
+Submits an NVMe Set Feature admin command and returns the applicable
+results. This may be the feature's value, or may also include a feature
+structure if the feature requires it (ex: LBA Range Type).
+
+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 value sent to the device is displayed
+
+OPTIONS
+-------
+-n <nsid>::
+--namespace-id=<nsid>::
+ Sets the feature for the given nsid. This is optional and
+ most features do not use this value.
+
+-f <fid>::
+--feature-id=<fid>::
+ The feature id to send with the command. Value provided should
+ be in hex.
+
+-l <data-len>::
+--data-len=<data-len>::
+ The data length for the buffer submitted for this feature. Most
+ known features do not use this value. The exceptions are LBA
+ Range Type and host identifier.
+
+-d <data-file>::
+--data=<data-file>::
+ The data file for the buffer submitted for this feature. Most
+ known features do not use this value. The exceptions is LBA
+ Range Type and host identifier. This defaults to STDIN so files
+ and echo can be piped.
+
+-v <value>::
+--value=<value>::
+ The value for command dword 11, the value you want to set the
+ feature to.
+
+-s::
+--save::
+ Save the attribute so that it persists through all power states and resets.
+
+EXAMPLES
+--------
+* Sets the Power State (PS) to 1 in feature id 2:
++
+------------
+# nvme set-feature /dev/nvme0 -f 2 /dev/nvme0n1 -v 0x1
+------------
++
+
+* Sets the host id to the ascii string.
++
+------------
+# echo "abcdefgh" | nvme set-feature /dev/nvme0 -f 0x81 -l 8
+------------
+
+NVME
+----
+Part of the nvme-user suite