netdev - [PATCH net-next] net: dsa: mt7530: enable MTU normalization

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Date:   Fri, 11 Dec 2020 01:03:22 +0800
From:   DENG Qingfang <dqfext@...il.com>
To:     netdev@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Russell King <linux@...linux.org.uk>
Subject: [PATCH net-next] 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 <dqfext@...il.com>
---
 drivers/net/dsa/mt7530.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 99bf8fed6536..a67cac15a724 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -1657,6 +1657,7 @@ 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);
@@ -1895,6 +1896,7 @@ 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);
-- 
2.25.1