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+.. SPDX-License-Identifier: GPL-2.0
+
+=========================
+mv88e6xxx devlink support
+=========================
+
+This document describes the devlink features implemented by the ``mv88e6xxx``
+device driver.
+
+Parameters
+==========
+
+The ``mv88e6xxx`` driver implements the following driver-specific parameters.
+
+.. list-table:: Driver-specific parameters implemented
+ :widths: 5 5 5 85
+
+ * - Name
+ - Type
+ - Mode
+ - Description
+ * - ``ATU_hash``
+ - u8
+ - runtime
+ - Select one of four possible hashing algorithms for MAC addresses in
+ the Address Translation Unit. A value of 3 may work better than the
+ default of 1 when many MAC addresses have the same OUI. Only the
+ values 0 to 3 are valid for this parameter.