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| author |   Maor Gottlieb <maorg@mellanox.com> | 2019-08-28 15:10:54 +0300 |
|---|---|---|
| committer |   Saeed Mahameed <saeedm@mellanox.com> | 2019-09-03 12:54:24 -0700 |
| commit | e890acd5ff18a0144967d0289869fe5f0415d399 (patch) | |
| tree | a50147dc54aaa6a520223745a83b76f8795d78bf /Documentation | |
| parent | net/mlx5: Add support to use SMFS in switchdev mode (diff) | |
| download | linux-dev-e890acd5ff18a0144967d0289869fe5f0415d399.tar.xz linux-dev-e890acd5ff18a0144967d0289869fe5f0415d399.zip | |
net/mlx5: Add devlink flow_steering_mode parameter
Add new parameter (flow_steering_mode) to control the flow steering
mode of the driver.
Two modes are supported:
1. DMFS - Device managed flow steering
2. SMFS - Software/Driver managed flow steering.
In the DMFS mode, the HW steering entities are created through the
FW. In the SMFS mode this entities are created though the driver
directly.
The driver will use the devlink steering mode only if the steering
domain supports it, for now SMFS will manages only the switchdev eswitch
steering domain.
User command examples:
- Set SMFS flow steering mode::
$ devlink dev param set pci/0000:06:00.0 name flow_steering_mode value "smfs" cmode runtime
- Read device flow steering mode::
$ devlink dev param show pci/0000:06:00.0 name flow_steering_mode
pci/0000:06:00.0:
name flow_steering_mode type driver-specific
values:
cmode runtime value smfs
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/device_drivers/mellanox/mlx5.rst | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/networking/device_drivers/mellanox/mlx5.rst b/Documentation/networking/device_drivers/mellanox/mlx5.rst index b30a63dbf4b7..d071c6b49e1f 100644 --- a/Documentation/networking/device_drivers/mellanox/mlx5.rst +++ b/Documentation/networking/device_drivers/mellanox/mlx5.rst @@ -11,6 +11,7 @@ Contents - `Enabling the driver and kconfig options`_ - `Devlink info`_ +- `Devlink parameters`_ - `Devlink health reporters`_ - `mlx5 tracepoints`_ @@ -122,6 +123,38 @@ User command example:: stored: fw.version 16.26.0100 +Devlink parameters +================== + +flow_steering_mode: Device flow steering mode +--------------------------------------------- +The flow steering mode parameter controls the flow steering mode of the driver. +Two modes are supported: +1. 'dmfs' - Device managed flow steering. +2. 'smfs - Software/Driver managed flow steering. + +In DMFS mode, the HW steering entities are created and managed through the +Firmware. +In SMFS mode, the HW steering entities are created and managed though by +the driver directly into Hardware without firmware intervention. + +SMFS mode is faster and provides better rule inserstion rate compared to default DMFS mode. + +User command examples: + +- Set SMFS flow steering mode:: + + $ devlink dev param set pci/0000:06:00.0 name flow_steering_mode value "smfs" cmode runtime + +- Read device flow steering mode:: + + $ devlink dev param show pci/0000:06:00.0 name flow_steering_mode + pci/0000:06:00.0: + name flow_steering_mode type driver-specific + values: + cmode runtime value smfs + + Devlink health reporters ======================== |