This is a note to let you know that I've just added the patch titled
net: dsa: b53: fix jumbo frames on 10/100 ports
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
net-dsa-b53-fix-jumbo-frames-on-10-100-ports.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 11a81180e58ba9b4c79bd68e1bf8b5a336f87043
Author: Jonas Gorski <jonas.gorski@xxxxxxxxx>
Date: Fri Oct 4 10:47:21 2024 +0200
net: dsa: b53: fix jumbo frames on 10/100 ports
[ 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@xxxxxxxxx>
Reviewed-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx>
Signed-off-by: Paolo Abeni <pabeni@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 51b41eb660134..4a2c9a9134d8c 100644
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -2273,7 +2273,7 @@ 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);
}
