| NVME-GET-PROPERTY(1) | NVMe Manual | NVME-GET-PROPERTY(1) |
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]
[--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
| 08/07/2024 | NVMe |