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| author | Jedrzej Jagielski <jedrzej.jagielski@intel.com> | 2025-04-10 15:00:05 +0200 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2025-04-15 07:36:33 -0700 |
| commit | c9e563cae19e529abcc2cb90b4b793952f209260 (patch) | |
| tree | 3dcade18ded845dc1e09f647d38c70c695aa4329 /Documentation | |
| parent | a0f45672d5e14af053d2dc5f552381351f6eeac0 (diff) | |
| download | ath-c9e563cae19e529abcc2cb90b4b793952f209260.tar.gz | |
ixgbe: add support for devlink reload
The E610 adapters contain an embedded chip with firmware which can be
updated using devlink flash. The firmware which runs on this chip is
referred to as the Embedded Management Processor firmware (EMP
firmware).
Activating the new firmware image currently requires that the system be
rebooted. This is not ideal as rebooting the system can cause unwanted
downtime.
The EMP firmware itself can be reloaded by issuing a special update
to the device called an Embedded Management Processor reset (EMP
reset). This reset causes the device to reset and reload the EMP
firmware.
Implement support for devlink reload with the "fw_activate" flag. This
allows user space to request the firmware be activated immediately.
Reviewed-by: Mateusz Polchlopek <mateusz.polchlopek@intel.com>
Tested-by: Bharath R <bharath.r@intel.com>
Co-developed-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Co-developed-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Co-developed-by: Stefan Wegrzyn <stefan.wegrzyn@intel.com>
Signed-off-by: Stefan Wegrzyn <stefan.wegrzyn@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/devlink/ixgbe.rst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/networking/devlink/ixgbe.rst b/Documentation/networking/devlink/ixgbe.rst index 3fd2584b2bf08..3fce291348fac 100644 --- a/Documentation/networking/devlink/ixgbe.rst +++ b/Documentation/networking/devlink/ixgbe.rst @@ -103,3 +103,20 @@ combined flash image that contains the ``fw.mgmt``, ``fw.undi``, and and device serial number. It is expected that this combination be used with an image customized for the specific device. +Reload +====== + +The ``ixgbe`` 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``. |