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nvme-get-property(1)
====================
NAME
----
nvme-get-property - Reads and shows the defined NVMe controller property
for NVMe over Fabric
SYNOPSIS
--------
[verse]
'nvme get-property' <device> [--offset=<offset> | -O <offset>]
[--human-readable | -H]
[--output-format=<fmt> | -o <fmt>] [--verbose | -v]
[--timeout=<timeout> | -t <timeout>]
DESCRIPTION
-----------
Reads and shows the defined NVMe controller property for NVMe over Fabric.
OPTIONS
-------
-O <offset>::
--offset=<offset>::
The offset of the property. One of CAP=0x0, VS=0x8, CC=0x14, CSTS=0x1c, NSSR=0x20
-H::
--human-readable:
Show the fields packed in the property
-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.
-t <timeout>::
--timeout=<timeout>::
Override default timeout value. In milliseconds.
EXAMPLES
--------
* The following will run the get-property command with offset 0
+
------------
# nvme get-property /dev/nvme0 --offset=0x0 --human-readable
------------
BUGS
----
Currently the CAP value is truncated to 32 bits due to a limitation in
the ioctl interface.
In a recent enough kernel, the 64 bit value is shown in kernel traces.
* First enable traces by this command
+
------------
# echo 1 > /sys/kernel/debug/tracing/events/nvme/enable
------------
* Then look for NVMe Fabrics command (0x7f) at trace
+
------------
/sys/kernel/debug/tracing/trace
------------
NVME
----
Part of the nvme-user suite
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