nvme-log-phy-rx-eom1
Retrieves a physical interface receiver eye opening measurement log page from an nvme device
Usage
nvme [<global-options>]
log
phy-rx-eom
<device>
[{--lsp=<field> | -s
<field>}]
[{--controller=<id> | -c
<id>}]
Overview
Retrieves a Physical Interface Receiver Eye Opening Measurement 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 it returns 0, error code otherwise.
Options
-
-s <field>, --lsp=<field> -
The log specified field configuring the controller’s action to take during processing of the command and the measurement quality.
-
-c <id>, --controller=<id> -
Controller ID of the controller associated with the PCIe port to be measured.
Options
The following options are defined at the top-level nvme command and are available to this subcommand:
-
--dry-run -
Print the command that would be executed, but do not actually execute it.
-
--no-ioctl-probing -
Disable probing for 64-bit IOCTL support.
-
--no-retries -
Disable retry logic on transient errors.
-
-o <fmt>, --output-format=<fmt> -
Set the reporting format to normal, tabular, 'json, or binary. Only one output format may be used at a time.
-
--output-format-version=<version> -
Select the output format version. Version 1 uses the original field naming, while version 2 (default) provides more consistent and script-friendly field names. Other versions are rejected.
-
--quiet -
Suppress informational messages. Errors are still reported, and --quiet cancels any --verbose for the library log level.
-
--set-options=<key=value>[,<key=value>...] -
Set libnvme library options for this invocation. Supported keys are force-4k, mi-probe-enabled, test-base-dir and test-sysfs-dir.
-
--timeout=<ms> -
Set the timeout for the command in milliseconds. infinite or -1 waits without a time limit (0xffffffff).
-
-v, --verbose -
Increase the level of detail in the output. May be specified multiple times to further increase verbosity.
These options can also be set as machine-wide defaults in nvme-cli.conf(5). A command-line flag always overrides the file.
Examples
• Start a best quality measurement and retrieve the log page header
# nvme log phy-rx-eom /dev/nvme0 --lsp=10
• Retrieve a finished best quality measurement on controller with ID 3
# nvme log phy-rx-eom /dev/nvme0 --lsp=2 --controller=3
Nvme
Part of the nvme-user suite