devlink-dev

DEVLINK-DEV(8)                       Linux                      DEVLINK-DEV(8)

NAME
       devlink-dev - devlink device configuration

SYNOPSIS
       devlink [ OPTIONS ] dev  { COMMAND | help }

       OPTIONS := { -V[ersion] | -n[no-nice-names] }

       devlink dev show [ DEV ]

       devlink dev help

       devlink dev eswitch set DEV [ mode { legacy | switchdev } ] [ inline-
               mode { none | link | network | transport } ] [ encap { disable
               | enable } ]

       devlink dev eswitch show DEV

       devlink dev param set DEV name PARAMETER value VALUE cmode { runtime |
               driverinit | permanent }

       devlink dev param show [ DEV name PARAMETER ]

       devlink dev reload DEV [ netns { PID | NAME | ID } ]

       devlink dev info [ DEV ]

       devlink dev flash DEV file PATH [ target ID ]

DESCRIPTION
   devlink dev show - display devlink device attributes
       DEV - specifies the devlink device to show.  If this argument is omit-
       ted all devices are listed.

           Format is:
             BUS_NAME/BUS_ADDRESS

   devlink dev eswitch show - display devlink device eswitch attributes
   devlink dev eswitch set - sets devlink device eswitch attributes
       mode { legacy | switchdev }
              Set eswitch mode

              legacy - Legacy SRIOV

              switchdev - SRIOV switchdev offloads

       inline-mode { none | link | network | transport }
              Some HWs need the VF driver to put part of the packet headers on
              the TX descriptor so the e-switch can do proper matching and
              steering.

              none - None

              link - L2 mode

              network - L3 mode

              transport - L4 mode

       encap { disable | enable }
              Set eswitch encapsulation support

              disable - Disable encapsulation support

              enable - Enable encapsulation support

   devlink dev param set - set new value to devlink device configuration pa-
       rameter
       name PARAMETER
              Specify parameter name to set.

       value VALUE
              New value to set.

       cmode { runtime | driverinit | permanent }
              Configuration mode in which the new value is set.

              runtime - Set new value while driver is running. This configura-
              tion mode doesn't require any reset to apply the new value.

              driverinit - Set new value which will be applied during driver
              initialization. This configuration mode requires restart driver
              by devlink reload command to apply the new value.

              permanent - New value is written to device's non-volatile mem-
              ory. This configuration mode requires hard reset to apply the
              new value.

   devlink dev param show - display devlink device supported configuration pa-
       rameters attributes
       name PARAMETER Specify parameter name to show.  If this argument is
       omitted all parameters supported by devlink devices are listed.

   devlink dev reload - perform hot reload of the driver.
       DEV - Specifies the devlink device to reload.

       netns { PID | NAME | ID } - Specifies the network namespace to reload
       into, either by pid, name or id.

   devlink dev info - display device information.
       Display device information provided by the driver. This command can be
       used to query versions of the hardware components or device components
       which can't be updated ( fixed ) as well as device firmware which can
       be updated. For firmware components running displays the versions of
       firmware currently loaded into the device, while stored reports the
       versions in device's flash.  Running and stored versions may differ af-
       ter flash has been updated, but before reboot.

       DEV - specifies the devlink device to show.  If this argument is omit-
       ted all devices are listed.

   devlink dev flash - write device's non-volatile memory.
       DEV - specifies the devlink device to write to.

       file PATH - Path to the file which will be written into device's flash.
       The path needs to be relative to one of the directories searched by the
       kernel firmware loaded, such as /lib/firmware.

       component NAME - If device stores multiple firmware images in non-
       volatile memory, this parameter may be used to indicate which firmware
       image should be written.  The value of NAME should match the component
       names from devlink dev info and may be driver-dependent.

EXAMPLES
       devlink dev show
           Shows the state of all devlink devices on the system.

       devlink dev show pci/0000:01:00.0
           Shows the state of specified devlink device.

       devlink dev eswitch show pci/0000:01:00.0
           Shows the eswitch mode of specified devlink device.

       devlink dev eswitch set pci/0000:01:00.0 mode switchdev
           Sets the eswitch mode of specified devlink device to switchdev.

       devlink dev param show pci/0000:01:00.0 name max_macs
           Shows the parameter max_macs attributes.

       devlink dev param set pci/0000:01:00.0 name internal_error_reset value
       true cmode runtime
           Sets the parameter internal_error_reset of specified devlink device
           to true.

       devlink dev reload pci/0000:01:00.0
           Performs hot reload of specified devlink device.

       devlink dev flash pci/0000:01:00.0 file firmware.bin
           Flashes the specified devlink device with provided firmware file
           name. If the driver supports it, user gets updates about the flash
           status. For example:
           Preparing to flash
           Flashing 100%
           Flashing done

SEE ALSO
       devlink(8), devlink-port(8), devlink-sb(8), devlink-monitor(8),

AUTHOR
       Jiri Pirko <jiri@mellanox.com>

iproute2                          14 Mar 2016                   DEVLINK-DEV(8)