[PATCH net-next v5 5/5] net: dsa: microchip: enable MTU normalization for KSZ8795 and KSZ9477 compatible switches

[Oleksij Rempel]

KSZ8795 and KSZ9477 compatible series of switches use global max frame
size configuration register. So, enable MTU normalization for this reason.

Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
 drivers/net/dsa/microchip/ksz8795.c | 2 ++
 drivers/net/dsa/microchip/ksz9477.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index d01bfd609130..d88d0b989e1a 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1426,6 +1426,8 @@ int ksz8_switch_init(struct ksz_device *dev)
 	 */
 	dev->ds->vlan_filtering_is_global = true;
 
+	dev->ds->mtu_enforcement_ingress = true;
+
 	return 0;
 }
 
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index f6e7968ab105..4fb07fbdf565 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1134,6 +1134,8 @@ int ksz9477_setup(struct dsa_switch *ds)
 	struct ksz_device *dev = ds->priv;
 	int ret = 0;
 
+	dev->ds->mtu_enforcement_ingress = true;
+
 	/* Required for port partitioning. */
 	ksz9477_cfg32(dev, REG_SW_QM_CTRL__4, UNICAST_VLAN_BOUNDARY,
 		      true);
-- 
2.30.2