From b0048b314620cc99f155c8c5cd4541af5e99e578 Mon Sep 17 00:00:00 2001 From: Christian Marangi Date: Fri, 6 Oct 2023 12:49:09 +0200 Subject: [PATCH] generic: 6.1: add patch enabling assisted learning for qca8k Add patch enabling assisted learning for qca8k to fix roaming issue between BSS and BSS on the same L2 broadcast domain. Signed-off-by: Christian Marangi --- ...enable-assisted-learning-on-CPU-port.patch | 57 +++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 target/linux/generic/pending-6.1/712-net-dsa-qca8k-enable-assisted-learning-on-CPU-port.patch diff --git a/target/linux/generic/pending-6.1/712-net-dsa-qca8k-enable-assisted-learning-on-CPU-port.patch b/target/linux/generic/pending-6.1/712-net-dsa-qca8k-enable-assisted-learning-on-CPU-port.patch new file mode 100644 index 0000000000..5b1f07749a --- /dev/null +++ b/target/linux/generic/pending-6.1/712-net-dsa-qca8k-enable-assisted-learning-on-CPU-port.patch @@ -0,0 +1,57 @@ +From 0f6599167c126ce32c85d4f8a1f3d1775a268572 Mon Sep 17 00:00:00 2001 +From: Christian Marangi +Date: Fri, 6 Oct 2023 12:44:00 +0200 +Subject: [PATCH] net: dsa: qca8k: enable assisted learning on CPU port + +Enable assisted learning on CPU port. + +It has been verified that there is a problem in packet roaming +from one BSS to another in the same security settings from one +physical R7800 to another physical R7800 where they are in the +same L2 broadcast domain backhauled/linked together via one +of the ethernet ports. +DHCP will fail to complete and traffic cannot flow for around 300 +seconds. + +Signed-off-by: Christian Marangi +--- + drivers/net/dsa/qca/qca8k-8xxx.c | 14 +++++++++----- + 1 file changed, 9 insertions(+), 5 deletions(-) + +--- a/drivers/net/dsa/qca/qca8k-8xxx.c ++++ b/drivers/net/dsa/qca/qca8k-8xxx.c +@@ -1991,6 +1991,12 @@ qca8k_setup(struct dsa_switch *ds) + dev_err(priv->dev, "failed enabling QCA header mode on port %d", dp->index); + return ret; + } ++ ++ /* Disable learning by default on all ports */ ++ ret = regmap_clear_bits(priv->regmap, QCA8K_PORT_LOOKUP_CTRL(dp->index), ++ QCA8K_PORT_LOOKUP_LEARN); ++ if (ret) ++ return ret; + } + + /* Forward all unknown frames to CPU port for Linux processing */ +@@ -2020,11 +2026,6 @@ qca8k_setup(struct dsa_switch *ds) + if (ret) + return ret; + +- ret = regmap_clear_bits(priv->regmap, QCA8K_PORT_LOOKUP_CTRL(port), +- QCA8K_PORT_LOOKUP_LEARN); +- if (ret) +- return ret; +- + /* For port based vlans to work we need to set the + * default egress vid + */ +@@ -2076,6 +2077,9 @@ qca8k_setup(struct dsa_switch *ds) + /* Set max number of LAGs supported */ + ds->num_lag_ids = QCA8K_NUM_LAGS; + ++ /* HW learn on CPU port is limited and require manual setting */ ++ ds->assisted_learning_on_cpu_port = true; ++ + return 0; + } + -- 2.30.2