NVME-LOG-PHY-RX-(1)               NVMe Manual              NVME-LOG-PHY-RX-(1)

NAME
       nvme-log-phy-rx-eom - Retrieves a Physical Interface Receiver Eye
       Opening Measurement log page from an NVMe device

SYNOPSIS
       nvme [<global-options>] log phy-rx-eom <device> [--lsp=<field> | -s <field>]
                               [--controller=<id> | -c <id>]

DESCRIPTION
       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.

GLOBAL 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.

       --timeout=<ms>
           Set the timeout for the command in milliseconds.

       -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
       o   Start a best quality measurement and retrieve the log page header

               # nvme log phy-rx-eom /dev/nvme0 --lsp=10

       o   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

NVMe                              09/07/2026               NVME-LOG-PHY-RX-(1)