net/mlx5: Document flow_steering_mode devlink param

Add documentation for current mlx5 supported devlink param.

Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/Documentation/networking/devlink-params-mlx5.txt b/Documentation/networking/devlink-params-mlx5.txt
new file mode 100644 (file)
index 0000000..8c0b82d
--- /dev/null
+++ b/Documentation/networking/devlink-params-mlx5.txt
@@ -0,0 +1,12 @@
+flow_steering_mode     [DEVICE, DRIVER-SPECIFIC]
+                       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.
+                       Type: String
+                       Configuration mode: runtime