openwrt/target/linux/layerscape/patches-5.4/701-net-0394-drivers-net-mscc_ocelot-don-t-flood-unicast-traffic-.patch
John Audia a696e325f7 kernel: bump 5.4 to 5.4.165
All patches automatically rebased.

Build system: x86_64
Build-tested: ramips/mt7621*

*FS#4149 affects me so I had to revert 7f1edbd412
in order to downgrade to 2.35.1

Signed-off-by: John Audia <graysky@archlinux.us>
2021-12-17 15:10:22 +01:00

40 lines
1.3 KiB
Diff

From 714e8c634821b340c191a157e8c4e0b1afd53dfc Mon Sep 17 00:00:00 2001
From: Alex Marginean <alexandru.marginean@nxp.com>
Date: Wed, 8 Jan 2020 15:21:53 +0200
Subject: [PATCH] drivers: net: mscc_ocelot: don't flood unicast traffic to cpu
Switch cpu port doesn't learn MAC addresses and the local bridge dev_addr
must be explicitly added to the bridge.
This is done whenever a port is added to a bridge, ports following the
1st one will just overwrite the same entry.
Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com>
---
drivers/net/ethernet/mscc/ocelot.c | 8 ++++++++
1 file changed, 8 insertions(+)
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1677,6 +1677,8 @@ static int ocelot_port_obj_del(struct ne
int ocelot_port_bridge_join(struct ocelot *ocelot, int port,
struct net_device *bridge)
{
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
+
if (!ocelot->bridge_mask) {
ocelot->hw_bridge_dev = bridge;
} else {
@@ -1688,6 +1690,12 @@ int ocelot_port_bridge_join(struct ocelo
ocelot->bridge_mask |= BIT(port);
+ /* Direct CPU traffic to PCU port, this should override any existing
+ * entries
+ */
+ ocelot_mact_learn(ocelot, PGID_CPU, bridge->dev_addr, ocelot_port->pvid,
+ ENTRYTYPE_LOCKED);
+
return 0;
}
EXPORT_SYMBOL(ocelot_port_bridge_join);