openwrt/target/linux/generic/backport-5.10/763-v5.11-net-dsa-mt7530-enable-MTU-normalization.patch
DENG Qingfang 637a3aaa6f kernel: backport MediaTek jumbo frame support
Allow MTU up to 2026 on mediatek, ramips/mt7621 targets.

Signed-off-by: DENG Qingfang <dqfext@gmail.com>
Tested-by: Arınç ÜNAL <arinc.unal@arinc9.com>
Tested-by: Stijn Tintel <stijn@linux-ipv6.be>
2022-02-05 17:46:59 +02:00

37 lines
1.2 KiB
Diff

From 771c8901568dd8776a260aa93db41be88a60389e Mon Sep 17 00:00:00 2001
From: DENG Qingfang <dqfext@gmail.com>
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 <dqfext@gmail.com>
Acked-by: Landen Chao <landen.chao@mediatek.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20201210170322.3433-1-dqfext@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
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);
@@ -1947,6 +1948,7 @@ 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);