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@pengutronix.de>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
---
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..060e41b9b6ef 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1357,6 +1357,8 @@ int ksz8_setup(struct dsa_switch *ds)
struct ksz_device *dev = ds->priv;
int i;
+ ds->mtu_enforcement_ingress = true;
+
ksz_cfg(dev, S_REPLACE_VID_CTRL, SW_FLOW_CTRL, true);
/* Enable automatic fast aging when link changed detected. */
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index f6e7968ab105..47b54ecf2c6f 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;
+ ds->mtu_enforcement_ingress = true;
+
/* Required for port partitioning. */
ksz9477_cfg32(dev, REG_SW_QM_CTRL__4, UNICAST_VLAN_BOUNDARY,
true);
--
2.30.2