openwrt/target/linux/layerscape/patches-5.4/701-net-0394-drivers-net-mscc_ocelot-don-t-flood-unicast-traffic-.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

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
@@ -1680,6 +1680,8 @@ 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 {
@@ -1691,6 +1693,12 @@ 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);