Ksawlii/kernel_samsung_a53x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

net: dsa: b53: fix jumbo frames on 10/100 ports

Browse source 
[ Upstream commit 2f3dcd0d39affe5b9ba1c351ce0e270c8bdd5109 ]

All modern chips support and need the 10_100 bit set for supporting jumbo
frames on 10/100 ports, so instead of enabling it only for 583XX enable
it for everything except bcm63xx, where the bit is writeable, but does
nothing.

Tested on BCM53115, where jumbo frames were dropped at 10/100 speeds
without the bit set.

Fixes: 6ae5834b983a ("net: dsa: b53: add MTU configuration support")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jonas Gorski 2024-10-04 10:47:21 +02:00 • committed by Ksawlii
parent 732af45018
commit 156fe33e3b
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/dsa/b53/b53_common.c
View file

@ -2188,7 +2188,7 @@ static int b53_change_mtu(struct dsa_switch *ds, int port, int mtu)
return 0;
enable_jumbo = (mtu > ETH_DATA_LEN);
allow_10_100 = (dev->chip_id == BCM583XX_DEVICE_ID);
allow_10_100 = !is63xx(dev);
return b53_set_jumbo(dev, enable_jumbo, allow_10_100);
}