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net: dsa: microchip: enable MTU normalization for KSZ8795 and KSZ9477 compatible switches

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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>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Oleksij Rempel 2022-12-05 06:22:31 +01:00 committed by Paolo Abeni
parent 29d1e85f45
commit 6b30cfa86e
2 changed files with 4 additions and 0 deletions
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2
drivers/net/dsa/microchip/ksz8795.c
View file

@ -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. */

2
drivers/net/dsa/microchip/ksz9477.c
View file

@ -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);