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| author |   David S. Miller <davem@davemloft.net> | 2022-08-26 11:39:00 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-08-26 11:39:00 +0100 |
| commit | 77baa37a9be948562c8b7630e3afd9d497e14550 (patch) | |
| tree | 0ee57825a4f2014b7041c463af16c9cd14eb5059 /Documentation/networking/devlink | |
| parent | net: phylink: allow RGMII/RTBI in-band status (diff) | |
| parent | ice: Print human-friendly PHY types (diff) | |
| download | linux-dev-77baa37a9be948562c8b7630e3afd9d497e14550.tar.xz linux-dev-77baa37a9be948562c8b7630e3afd9d497e14550.zip | |
Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
Intel Wired LAN Driver Updates 2022-08-24 (ice)
This series contains updates to ice driver only.
Marcin adds support for TC parsing on TTL and ToS fields.
Anatolli adds support for devlink port split command to allow
configuration of various port configurations.
Jake allows for passing and writing an additional NVM write activate
field by expanding current cmd_flag.
Ani makes PHY debug output more readable.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/networking/devlink')
| -rw-r--r-- | Documentation/networking/devlink/ice.rst | 36 |
1 files changed, 36 insertions, 0 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 ======= |