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| -rw-r--r-- | Documentation/networking/devlink/ice.rst | 60 |
1 files changed, 58 insertions, 2 deletions
diff --git a/Documentation/networking/devlink/ice.rst b/Documentation/networking/devlink/ice.rst index 59c78e9717d2..0c89ceb8986d 100644 --- a/Documentation/networking/devlink/ice.rst +++ b/Documentation/networking/devlink/ice.rst @@ -26,8 +26,10 @@ The ``ice`` driver reports the following versions * - ``fw.mgmt`` - running - 2.1.7 - - 3-digit version number of the management firmware that controls the - PHY, link, etc. + - 3-digit version number of the management firmware running on the + Embedded Management Processor of the device. It controls the PHY, + link, access to device resources, etc. Intel documentation refers to + this as the EMP firmware. * - ``fw.mgmt.api`` - running - 1.5.1 @@ -119,6 +121,60 @@ preserving settings, and thus ``DEVLINK_FLASH_OVERWRITE_IDENTIFIERS`` on its own will be rejected. If no overwrite mask is provided, the firmware will be instructed to preserve all settings and identifying fields when updating. +Reload +====== + +The ``ice`` driver supports activating new firmware after a flash update +using ``DEVLINK_CMD_RELOAD`` with the ``DEVLINK_RELOAD_ACTION_FW_ACTIVATE`` +action. + +.. code:: shell + + $ devlink dev reload pci/0000:01:00.0 reload action fw_activate + +The new firmware is activated by issuing a device specific Embedded +Management Processor reset which requests the device to reset and reload the +EMP firmware image. + +The driver does not currently support reloading the driver via +``DEVLINK_RELOAD_ACTION_DRIVER_REINIT``. + +Port split +========== + +The ``ice`` driver supports port splitting only for port 0, as the FW has +a predefined set of available port split options for the whole device. + +A system reboot is required for port split to be applied. + +The following command will select the port split option with 4 ports: + +.. code:: shell + + $ devlink port split pci/0000:16:00.0/0 count 4 + +The list of all available port options will be printed to dynamic debug after +each ``split`` and ``unsplit`` command. The first option is the default. + +.. code:: shell + + ice 0000:16:00.0: Available port split options and max port speeds (Gbps): + ice 0000:16:00.0: Status Split Quad 0 Quad 1 + ice 0000:16:00.0: count L0 L1 L2 L3 L4 L5 L6 L7 + ice 0000:16:00.0: Active 2 100 - - - 100 - - - + ice 0000:16:00.0: 2 50 - 50 - - - - - + ice 0000:16:00.0: Pending 4 25 25 25 25 - - - - + ice 0000:16:00.0: 4 25 25 - - 25 25 - - + ice 0000:16:00.0: 8 10 10 10 10 10 10 10 10 + ice 0000:16:00.0: 1 100 - - - - - - - + +There could be multiple FW port options with the same port split count. When +the same port split count request is issued again, the next FW port option with +the same port split count will be selected. + +``devlink port unsplit`` will select the option with a split count of 1. If +there is no FW option available with split count 1, you will receive an error. + Regions ======= |