NAME
nvme-get-property - Reads and shows the defined NVMe controller property for NVMe over Fabric
SYNOPSIS
nvme
get-property <device> [--offset=<offset> |
-O <offset>]
[--human-readable | -H]
[--output-format=<fmt> | -o <fmt>] [--verbose |
-v]
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.
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