diff options
Diffstat (limited to 'Documentation/networking/devlink')
| -rw-r--r-- | Documentation/networking/devlink/ice.rst | 36 | ||||
| -rw-r--r-- | Documentation/networking/devlink/index.rst | 6 | ||||
| -rw-r--r-- | Documentation/networking/devlink/netdevsim.rst | 2 |
3 files changed, 39 insertions, 5 deletions
diff --git a/Documentation/networking/devlink/ice.rst b/Documentation/networking/devlink/ice.rst index 8c082b139bbd..0c89ceb8986d 100644 --- a/Documentation/networking/devlink/ice.rst +++ b/Documentation/networking/devlink/ice.rst @@ -139,6 +139,42 @@ 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 ======= diff --git a/Documentation/networking/devlink/index.rst b/Documentation/networking/devlink/index.rst index e3a5f985673e..4b653d040627 100644 --- a/Documentation/networking/devlink/index.rst +++ b/Documentation/networking/devlink/index.rst @@ -13,10 +13,8 @@ new APIs prefixed by ``devl_*``. The older APIs handle all the locking in devlink core, but don't allow registration of most sub-objects once the main devlink object is itself registered. The newer ``devl_*`` APIs assume the devlink instance lock is already held. Drivers can take the instance -lock by calling ``devl_lock()``. It is also held in most of the callbacks. -Eventually all callbacks will be invoked under the devlink instance lock, -refer to the use of the ``DEVLINK_NL_FLAG_NO_LOCK`` flag in devlink core -to find out which callbacks are not converted, yet. +lock by calling ``devl_lock()``. It is also held all callbacks of devlink +netlink commands. Drivers are encouraged to use the devlink instance lock for their own needs. diff --git a/Documentation/networking/devlink/netdevsim.rst b/Documentation/networking/devlink/netdevsim.rst index 8a292fb5aaea..ec5e6d79b2e2 100644 --- a/Documentation/networking/devlink/netdevsim.rst +++ b/Documentation/networking/devlink/netdevsim.rst @@ -67,7 +67,7 @@ The ``netdevsim`` driver supports rate objects management, which includes: - setting tx_share and tx_max rate values for any rate object type; - setting parent node for any rate object type. -Rate nodes and it's parameters are exposed in ``netdevsim`` debugfs in RO mode. +Rate nodes and their parameters are exposed in ``netdevsim`` debugfs in RO mode. For example created rate node with name ``some_group``: .. code:: shell |