diff --git a/Documentation/networking/devlink-params-mv88e6xxx.txt b/Documentation/networking/devlink-params-mv88e6xxx.txt
new file mode 100644
index 000000000000..21c4b3556ef2
--- /dev/null
+++ b/Documentation/networking/devlink-params-mv88e6xxx.txt
@@ -0,0 +1,7 @@
+ATU_hash		[DEVICE, DRIVER-SPECIFIC]
+			Select one of four possible hashing algorithms for
+			MAC addresses in the Address Translation Unit.
+			A value of 3 seems to work better than the default of
+			1 when many MAC addresses have the same OUI.
+			Configuration mode: runtime
+			Type: u8. 0-3 valid.
diff --git a/MAINTAINERS b/MAINTAINERS
index 7fc074632eac..c25441edb274 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9744,6 +9744,7 @@ S:	Maintained
 F:	drivers/net/dsa/mv88e6xxx/
 F:	include/linux/platform_data/mv88e6xxx.h
 F:	Documentation/devicetree/bindings/net/dsa/marvell.txt
+F:	Documentation/networking/devlink-params-mv88e6xxx.txt
 
 MARVELL ARMADA DRM SUPPORT
 M:	Russell King <linux@armlinux.org.uk>
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 5fdf6d6ebe27..619cd081339e 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1378,6 +1378,22 @@ static int mv88e6xxx_atu_new(struct mv88e6xxx_chip *chip, u16 *fid)
 	return mv88e6xxx_g1_atu_flush(chip, *fid, true);
 }
 
+static int mv88e6xxx_atu_get_hash(struct mv88e6xxx_chip *chip, u8 *hash)
+{
+	if (chip->info->ops->atu_get_hash)
+		return chip->info->ops->atu_get_hash(chip, hash);
+
+	return -EOPNOTSUPP;
+}
+
+static int mv88e6xxx_atu_set_hash(struct mv88e6xxx_chip *chip, u8 hash)
+{
+	if (chip->info->ops->atu_set_hash)
+		return chip->info->ops->atu_set_hash(chip, hash);
+
+	return -EOPNOTSUPP;
+}
+
 static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 					u16 vid_begin, u16 vid_end)
 {
@@ -2637,6 +2653,78 @@ static int mv88e6390_setup_errata(struct mv88e6xxx_chip *chip)
 	return mv88e6xxx_software_reset(chip);
 }
 
+enum mv88e6xxx_devlink_param_id {
+	MV88E6XXX_DEVLINK_PARAM_ID_BASE = DEVLINK_PARAM_GENERIC_ID_MAX,
+	MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH,
+};
+
+static int mv88e6xxx_devlink_param_get(struct dsa_switch *ds, u32 id,
+				       struct devlink_param_gset_ctx *ctx)
+{
+	struct mv88e6xxx_chip *chip = ds->priv;
+	int err;
+
+	mv88e6xxx_reg_lock(chip);
+
+	switch (id) {
+	case MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH:
+		err = mv88e6xxx_atu_get_hash(chip, &ctx->val.vu8);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	mv88e6xxx_reg_unlock(chip);
+
+	return err;
+}
+
+static int mv88e6xxx_devlink_param_set(struct dsa_switch *ds, u32 id,
+				       struct devlink_param_gset_ctx *ctx)
+{
+	struct mv88e6xxx_chip *chip = ds->priv;
+	int err;
+
+	mv88e6xxx_reg_lock(chip);
+
+	switch (id) {
+	case MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH:
+		err = mv88e6xxx_atu_set_hash(chip, ctx->val.vu8);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	mv88e6xxx_reg_unlock(chip);
+
+	return err;
+}
+
+static const struct devlink_param mv88e6xxx_devlink_params[] = {
+	DSA_DEVLINK_PARAM_DRIVER(MV88E6XXX_DEVLINK_PARAM_ID_ATU_HASH,
+				 "ATU_hash", DEVLINK_PARAM_TYPE_U8,
+				 BIT(DEVLINK_PARAM_CMODE_RUNTIME)),
+};
+
+static int mv88e6xxx_setup_devlink_params(struct dsa_switch *ds)
+{
+	return dsa_devlink_params_register(ds, mv88e6xxx_devlink_params,
+					   ARRAY_SIZE(mv88e6xxx_devlink_params));
+}
+
+static void mv88e6xxx_teardown_devlink_params(struct dsa_switch *ds)
+{
+	dsa_devlink_params_unregister(ds, mv88e6xxx_devlink_params,
+				      ARRAY_SIZE(mv88e6xxx_devlink_params));
+}
+
+static void mv88e6xxx_teardown(struct dsa_switch *ds)
+{
+	mv88e6xxx_teardown_devlink_params(ds);
+}
+
 static int mv88e6xxx_setup(struct dsa_switch *ds)
 {
 	struct mv88e6xxx_chip *chip = ds->priv;
@@ -2753,7 +2841,11 @@ static int mv88e6xxx_setup(struct dsa_switch *ds)
 unlock:
 	mv88e6xxx_reg_unlock(chip);
 
-	return err;
+	/* Has to be called without holding the register lock, since
+	 * it takes the devlink lock, and we later take the locks in
+	 * the reverse order when getting/setting parameters.
+	 */
+	return mv88e6xxx_setup_devlink_params(ds);
 }
 
 static int mv88e6xxx_mdio_read(struct mii_bus *bus, int phy, int reg)
@@ -3113,6 +3205,8 @@ static const struct mv88e6xxx_ops mv88e6123_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.phylink_validate = mv88e6185_phylink_validate,
@@ -3242,6 +3336,8 @@ static const struct mv88e6xxx_ops mv88e6161_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.avb_ops = &mv88e6165_avb_ops,
@@ -3276,6 +3372,8 @@ static const struct mv88e6xxx_ops mv88e6165_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.avb_ops = &mv88e6165_avb_ops,
@@ -3318,6 +3416,8 @@ static const struct mv88e6xxx_ops mv88e6171_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.phylink_validate = mv88e6185_phylink_validate,
@@ -3362,6 +3462,8 @@ static const struct mv88e6xxx_ops mv88e6172_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6352_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.serdes_get_lane = mv88e6352_serdes_get_lane,
@@ -3405,6 +3507,8 @@ static const struct mv88e6xxx_ops mv88e6175_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.phylink_validate = mv88e6185_phylink_validate,
@@ -3449,6 +3553,8 @@ static const struct mv88e6xxx_ops mv88e6176_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6352_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.serdes_get_lane = mv88e6352_serdes_get_lane,
@@ -3534,6 +3640,8 @@ static const struct mv88e6xxx_ops mv88e6190_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
 	.serdes_power = mv88e6390_serdes_power,
@@ -3583,6 +3691,8 @@ static const struct mv88e6xxx_ops mv88e6190x_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
 	.serdes_power = mv88e6390_serdes_power,
@@ -3631,6 +3741,8 @@ static const struct mv88e6xxx_ops mv88e6191_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
 	.serdes_power = mv88e6390_serdes_power,
@@ -3682,6 +3794,8 @@ static const struct mv88e6xxx_ops mv88e6240_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6352_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.serdes_get_lane = mv88e6352_serdes_get_lane,
@@ -3773,6 +3887,8 @@ static const struct mv88e6xxx_ops mv88e6290_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
 	.serdes_power = mv88e6390_serdes_power,
@@ -3959,6 +4075,8 @@ static const struct mv88e6xxx_ops mv88e6350_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.phylink_validate = mv88e6185_phylink_validate,
@@ -3999,6 +4117,8 @@ static const struct mv88e6xxx_ops mv88e6351_ops = {
 	.mgmt_rsvd2cpu = mv88e6352_g2_mgmt_rsvd2cpu,
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.avb_ops = &mv88e6352_avb_ops,
@@ -4045,6 +4165,8 @@ static const struct mv88e6xxx_ops mv88e6352_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6352_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6352_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6352_g1_vtu_loadpurge,
 	.serdes_get_lane = mv88e6352_serdes_get_lane,
@@ -4101,6 +4223,8 @@ static const struct mv88e6xxx_ops mv88e6390_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
 	.serdes_power = mv88e6390_serdes_power,
@@ -4154,6 +4278,8 @@ static const struct mv88e6xxx_ops mv88e6390x_ops = {
 	.pot_clear = mv88e6xxx_g2_pot_clear,
 	.reset = mv88e6352_g1_reset,
 	.rmu_disable = mv88e6390_g1_rmu_disable,
+	.atu_get_hash = mv88e6165_g1_atu_get_hash,
+	.atu_set_hash = mv88e6165_g1_atu_set_hash,
 	.vtu_getnext = mv88e6390_g1_vtu_getnext,
 	.vtu_loadpurge = mv88e6390_g1_vtu_loadpurge,
 	.serdes_power = mv88e6390_serdes_power,
@@ -4929,6 +5055,7 @@ static int mv88e6xxx_port_egress_floods(struct dsa_switch *ds, int port,
 static const struct dsa_switch_ops mv88e6xxx_switch_ops = {
 	.get_tag_protocol	= mv88e6xxx_get_tag_protocol,
 	.setup			= mv88e6xxx_setup,
+	.teardown		= mv88e6xxx_teardown,
 	.phylink_validate	= mv88e6xxx_validate,
 	.phylink_mac_link_state	= mv88e6xxx_link_state,
 	.phylink_mac_config	= mv88e6xxx_mac_config,
@@ -4971,6 +5098,8 @@ static const struct dsa_switch_ops mv88e6xxx_switch_ops = {
 	.port_txtstamp		= mv88e6xxx_port_txtstamp,
 	.port_rxtstamp		= mv88e6xxx_port_rxtstamp,
 	.get_ts_info		= mv88e6xxx_get_ts_info,
+	.devlink_param_get	= mv88e6xxx_devlink_param_get,
+	.devlink_param_set	= mv88e6xxx_devlink_param_set,
 };
 
 static int mv88e6xxx_register_switch(struct mv88e6xxx_chip *chip)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.h b/drivers/net/dsa/mv88e6xxx/chip.h
index e9b1a1ac9a8e..52f7726cc099 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.h
+++ b/drivers/net/dsa/mv88e6xxx/chip.h
@@ -497,6 +497,10 @@ struct mv88e6xxx_ops {
 	int (*serdes_get_stats)(struct mv88e6xxx_chip *chip,  int port,
 				uint64_t *data);
 
+	/* Address Translation Unit operations */
+	int (*atu_get_hash)(struct mv88e6xxx_chip *chip, u8 *hash);
+	int (*atu_set_hash)(struct mv88e6xxx_chip *chip, u8 hash);
+
 	/* VLAN Translation Unit operations */
 	int (*vtu_getnext)(struct mv88e6xxx_chip *chip,
 			   struct mv88e6xxx_vtu_entry *entry);
diff --git a/drivers/net/dsa/mv88e6xxx/global1.h b/drivers/net/dsa/mv88e6xxx/global1.h
index 0870fcc8bfc8..40fc0e13fc45 100644
--- a/drivers/net/dsa/mv88e6xxx/global1.h
+++ b/drivers/net/dsa/mv88e6xxx/global1.h
@@ -109,6 +109,7 @@
 /* Offset 0x0A: ATU Control Register */
 #define MV88E6XXX_G1_ATU_CTL		0x0a
 #define MV88E6XXX_G1_ATU_CTL_LEARN2ALL	0x0008
+#define MV88E6161_G1_ATU_CTL_HASH_MASK	0x0003
 
 /* Offset 0x0B: ATU Operation Register */
 #define MV88E6XXX_G1_ATU_OP				0x0b
@@ -318,6 +319,8 @@ int mv88e6xxx_g1_atu_remove(struct mv88e6xxx_chip *chip, u16 fid, int port,
 			    bool all);
 int mv88e6xxx_g1_atu_prob_irq_setup(struct mv88e6xxx_chip *chip);
 void mv88e6xxx_g1_atu_prob_irq_free(struct mv88e6xxx_chip *chip);
+int mv88e6165_g1_atu_get_hash(struct mv88e6xxx_chip *chip, u8 *hash);
+int mv88e6165_g1_atu_set_hash(struct mv88e6xxx_chip *chip, u8 hash);
 
 int mv88e6185_g1_vtu_getnext(struct mv88e6xxx_chip *chip,
 			     struct mv88e6xxx_vtu_entry *entry);
diff --git a/drivers/net/dsa/mv88e6xxx/global1_atu.c b/drivers/net/dsa/mv88e6xxx/global1_atu.c
index 792a96ef418f..d8a03bbba83c 100644
--- a/drivers/net/dsa/mv88e6xxx/global1_atu.c
+++ b/drivers/net/dsa/mv88e6xxx/global1_atu.c
@@ -73,6 +73,38 @@ int mv88e6xxx_g1_atu_set_age_time(struct mv88e6xxx_chip *chip,
 	return 0;
 }
 
+int mv88e6165_g1_atu_get_hash(struct mv88e6xxx_chip *chip, u8 *hash)
+{
+	int err;
+	u16 val;
+
+	err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_CTL, &val);
+	if (err)
+		return err;
+
+	*hash = val & MV88E6161_G1_ATU_CTL_HASH_MASK;
+
+	return 0;
+}
+
+int mv88e6165_g1_atu_set_hash(struct mv88e6xxx_chip *chip, u8 hash)
+{
+	int err;
+	u16 val;
+
+	if (hash & ~MV88E6161_G1_ATU_CTL_HASH_MASK)
+		return -EINVAL;
+
+	err = mv88e6xxx_g1_read(chip, MV88E6XXX_G1_ATU_CTL, &val);
+	if (err)
+		return err;
+
+	val &= ~MV88E6161_G1_ATU_CTL_HASH_MASK;
+	val |= hash;
+
+	return mv88e6xxx_g1_write(chip, MV88E6XXX_G1_ATU_CTL, val);
+}
+
 /* Offset 0x0B: ATU Operation Register */
 
 static int mv88e6xxx_g1_atu_op_wait(struct mv88e6xxx_chip *chip)