From 771c8901568dd8776a260aa93db41be88a60389e Mon Sep 17 00:00:00 2001 From: DENG Qingfang Date: Fri, 11 Dec 2020 01:03:22 +0800 Subject: [PATCH] net: dsa: mt7530: enable MTU normalization MT7530 has a global RX length register, so we are actually changing its MRU. Enable MTU normalization for this reason. Signed-off-by: DENG Qingfang Acked-by: Landen Chao Reviewed-by: Vladimir Oltean Link: https://lore.kernel.org/r/20201210170322.3433-1-dqfext@gmail.com Signed-off-by: Jakub Kicinski --- drivers/net/dsa/mt7530.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -1703,6 +1703,7 @@ mt7530_setup(struct dsa_switch *ds) */ dn = dsa_to_port(ds, MT7530_CPU_PORT)->master->dev.of_node->parent; ds->configure_vlan_while_not_filtering = true; + ds->mtu_enforcement_ingress = true; if (priv->id == ID_MT7530) { regulator_set_voltage(priv->core_pwr, 1000000, 1000000); @@ -1948,6 +1949,7 @@ mt7531_setup(struct dsa_switch *ds) } ds->configure_vlan_while_not_filtering = true; + ds->mtu_enforcement_ingress = true; /* Flush the FDB table */ ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);