generic: 5.15: qca8k: backport code split patch

Backport upstream code split patch for qca8k needed for ipq40xx target to correctly implement a DSA driver. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-01-02 04:12:29 +00:00 · 2022-09-12 18:40:16 +02:00 · 2022-09-12 18:40:16 +02:00 · 7ace30aeb6
commit 7ace30aeb6
parent ddcebda08b
24 changed files with 17762 additions and 0 deletions
--- a/target/linux/generic/backport-5.15/767-v5.18-net-dsa-qca8k-check-correct-variable-in-qca8k_phy_et.patch
+++ b/target/linux/generic/backport-5.15/767-v5.18-net-dsa-qca8k-check-correct-variable-in-qca8k_phy_et.patch
@ -0,0 +1,28 @@
 From c3664d913dc115cab4a5fdb5634df4887048000e Mon Sep 17 00:00:00 2001
 From: Dan Carpenter <dan.carpenter@oracle.com>
 Date: Fri, 4 Feb 2022 13:03:36 +0300
 Subject: [PATCH 1/1] net: dsa: qca8k: check correct variable in
 qca8k_phy_eth_command()
 This is a copy and paste bug.  It was supposed to check "clear_skb"
 instead of "write_skb".
 Fixes: 2cd548566384 ("net: dsa: qca8k: add support for phy read/write with mgmt Ethernet")
 Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -1018,7 +1018,7 @@ qca8k_phy_eth_command(struct qca8k_priv
 	clear_skb = qca8k_alloc_mdio_header(MDIO_WRITE, QCA8K_MDIO_MASTER_CTRL, &clear_val,
 					    QCA8K_ETHERNET_PHY_PRIORITY, sizeof(clear_val));
 -	if (!write_skb) {
 +	if (!clear_skb) {
 		ret = -ENOMEM;
 		goto err_clear_skb;
 	}
--- a/target/linux/generic/backport-5.15/768-v5.18-net-dsa-qca8k-fix-noderef.cocci-warnings.patch
+++ b/target/linux/generic/backport-5.15/768-v5.18-net-dsa-qca8k-fix-noderef.cocci-warnings.patch
@ -0,0 +1,34 @@
 From 4f5e483b8c7a644733db941a1ae00173baa7b463 Mon Sep 17 00:00:00 2001
 From: kernel test robot <lkp@intel.com>
 Date: Thu, 10 Feb 2022 06:13:04 +0800
 Subject: [PATCH 1/1] net: dsa: qca8k: fix noderef.cocci warnings
 drivers/net/dsa/qca8k.c:422:37-43: ERROR: application of sizeof to pointer
 sizeof when applied to a pointer typed expression gives the size of
 the pointer
 Generated by: scripts/coccinelle/misc/noderef.cocci
 Fixes: 90386223f44e ("net: dsa: qca8k: add support for larger read/write size with mgmt Ethernet")
 CC: Ansuel Smith <ansuelsmth@gmail.com>
 Reported-by: kernel test robot <lkp@intel.com>
 Signed-off-by: kernel test robot <lkp@intel.com>
 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
 Link: https://lore.kernel.org/r/20220209221304.GA17529@d2214a582157
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca8k.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -456,7 +456,7 @@ qca8k_regmap_read(void *ctx, uint32_t re
 	u16 r1, r2, page;
 	int ret;
 -	if (!qca8k_read_eth(priv, reg, val, sizeof(val)))
 +	if (!qca8k_read_eth(priv, reg, val, sizeof(*val)))
 		return 0;
 	qca8k_split_addr(reg, &r1, &r2, &page);
--- a/target/linux/generic/backport-5.15/769-v5.19-01-net-dsa-qca8k-drop-MTU-tracking-from-qca8k_priv.patch
+++ b/target/linux/generic/backport-5.15/769-v5.19-01-net-dsa-qca8k-drop-MTU-tracking-from-qca8k_priv.patch
@ -0,0 +1,79 @@
 From 69fd055957a02309ffdc23d887a01988b6e5bab1 Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <ansuelsmth@gmail.com>
 Date: Sat, 16 Apr 2022 01:30:12 +0200
 Subject: [PATCH 1/6] net: dsa: qca8k: drop MTU tracking from qca8k_priv
 DSA set the CPU port based on the largest MTU of all the slave ports.
 Based on this we can drop the MTU array from qca8k_priv and set the
 port_change_mtu logic on DSA changing MTU of the CPU port as the switch
 have a global MTU settingfor each port.
 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 26 +++++++++-----------------
 drivers/net/dsa/qca8k.h |  1 -
 2 files changed, 9 insertions(+), 18 deletions(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -1803,16 +1803,6 @@ qca8k_setup(struct dsa_switch *ds)
 				  QCA8K_PORT_HOL_CTRL1_WRED_EN,
 				  mask);
 		}
 -
 -		/* Set initial MTU for every port.
 -		 * We have only have a general MTU setting. So track
 -		 * every port and set the max across all port.
 -		 * Set per port MTU to 1500 as the MTU change function
 -		 * will add the overhead and if its set to 1518 then it
 -		 * will apply the overhead again and we will end up with
 -		 * MTU of 1536 instead of 1518
 -		 */
 -		priv->port_mtu[i] = ETH_DATA_LEN;
 	}
 	/* Special GLOBAL_FC_THRESH value are needed for ar8327 switch */
@@ -2525,13 +2515,16 @@ static int
 qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 {
 	struct qca8k_priv *priv = ds->priv;
 -	int ret, i, mtu = 0;
 -
 -	priv->port_mtu[port] = new_mtu;
 +	int ret;
 -	for (i = 0; i < QCA8K_NUM_PORTS; i++)
 -		if (priv->port_mtu[i] > mtu)
 -			mtu = priv->port_mtu[i];
 +	/* We have only have a general MTU setting.
 +	 * DSA always set the CPU port's MTU to the largest MTU of the slave
 +	 * ports.
 +	 * Setting MTU just for the CPU port is sufficient to correctly set a
 +	 * value for every port.
 +	 */
 +	if (!dsa_is_cpu_port(ds, port))
 +		return 0;
 	/* To change the MAX_FRAME_SIZE the cpu ports must be off or
 	 * the switch panics.
@@ -2545,7 +2538,7 @@ qca8k_port_change_mtu(struct dsa_switch
 		qca8k_port_set_status(priv, 6, 0);
 	/* Include L2 header / FCS length */
 -	ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, mtu + ETH_HLEN + ETH_FCS_LEN);
 +	ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu + ETH_HLEN + ETH_FCS_LEN);
 	if (priv->port_sts[0].enabled)
 		qca8k_port_set_status(priv, 0, 1);
 --- a/drivers/net/dsa/qca8k.h
 +++ b/drivers/net/dsa/qca8k.h
@@ -392,7 +392,6 @@ struct qca8k_priv {
 	struct device *dev;
 	struct dsa_switch_ops ops;
 	struct gpio_desc *reset_gpio;
 -	unsigned int port_mtu[QCA8K_NUM_PORTS];
 	struct net_device *mgmt_master; /* Track if mdio/mib Ethernet is available */
 	struct qca8k_mgmt_eth_data mgmt_eth_data;
 	struct qca8k_mib_eth_data mib_eth_data;
--- a/target/linux/generic/backport-5.15/769-v5.19-02-net-dsa-qca8k-drop-port_sts-from-qca8k_priv.patch
+++ b/target/linux/generic/backport-5.15/769-v5.19-02-net-dsa-qca8k-drop-port_sts-from-qca8k_priv.patch
@ -0,0 +1,116 @@
 From 2b8fd87af7f156942971789abac8ee2bb60c03bc Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <ansuelsmth@gmail.com>
 Date: Sat, 16 Apr 2022 01:30:13 +0200
 Subject: [PATCH 2/6] net: dsa: qca8k: drop port_sts from qca8k_priv
 Port_sts is a thing of the past for this driver. It was something
 present on the initial implementation of this driver and parts of the
 original struct were dropped over time. Using an array of int to store if
 a port is enabled or not to handle PM operation seems overkill. Switch
 and use a simple u8 to store the port status where each bit correspond
 to a port. (bit is set port is enabled, bit is not set, port is disabled)
 Also add some comments to better describe why we need to track port
 status.
 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 15 +++++++++------
 drivers/net/dsa/qca8k.h |  9 ++++-----
 2 files changed, 13 insertions(+), 11 deletions(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -2494,7 +2494,7 @@ qca8k_port_enable(struct dsa_switch *ds,
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	qca8k_port_set_status(priv, port, 1);
 -	priv->port_sts[port].enabled = 1;
 +	priv->port_enabled_map |= BIT(port);
 	if (dsa_is_user_port(ds, port))
 		phy_support_asym_pause(phy);
@@ -2508,7 +2508,7 @@ qca8k_port_disable(struct dsa_switch *ds
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 	qca8k_port_set_status(priv, port, 0);
 -	priv->port_sts[port].enabled = 0;
 +	priv->port_enabled_map &= ~BIT(port);
 }
 static int
@@ -2531,19 +2531,19 @@ qca8k_port_change_mtu(struct dsa_switch
 	 * Turn off both cpu ports before applying the new value to prevent
 	 * this.
 	 */
 -	if (priv->port_sts[0].enabled)
 +	if (priv->port_enabled_map & BIT(0))
 		qca8k_port_set_status(priv, 0, 0);
 -	if (priv->port_sts[6].enabled)
 +	if (priv->port_enabled_map & BIT(6))
 		qca8k_port_set_status(priv, 6, 0);
 	/* Include L2 header / FCS length */
 	ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu + ETH_HLEN + ETH_FCS_LEN);
 -	if (priv->port_sts[0].enabled)
 +	if (priv->port_enabled_map & BIT(0))
 		qca8k_port_set_status(priv, 0, 1);
 -	if (priv->port_sts[6].enabled)
 +	if (priv->port_enabled_map & BIT(6))
 		qca8k_port_set_status(priv, 6, 1);
 	return ret;
@@ -3199,13 +3199,16 @@ static void qca8k_sw_shutdown(struct mdi
 static void
 qca8k_set_pm(struct qca8k_priv *priv, int enable)
 {
 -	int i;
 +	int port;
 -	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 -		if (!priv->port_sts[i].enabled)
 +	for (port = 0; port < QCA8K_NUM_PORTS; port++) {
 +		/* Do not enable on resume if the port was
 +		 * disabled before.
 +		 */
 +		if (!(priv->port_enabled_map & BIT(port)))
 			continue;
 -		qca8k_port_set_status(priv, i, enable);
 +		qca8k_port_set_status(priv, port, enable);
 	}
 }
 --- a/drivers/net/dsa/qca8k.h
 +++ b/drivers/net/dsa/qca8k.h
@@ -324,10 +324,6 @@ enum qca8k_mid_cmd {
 	QCA8K_MIB_CAST = 3,
 };
 -struct ar8xxx_port_status {
 -	int enabled;
 -};
 -
 struct qca8k_match_data {
 	u8 id;
 	bool reduced_package;
@@ -382,11 +378,14 @@ struct qca8k_priv {
 	u8 mirror_rx;
 	u8 mirror_tx;
 	u8 lag_hash_mode;
 +	/* Each bit correspond to a port. This switch can support a max of 7 port.
 +	 * Bit 1: port enabled. Bit 0: port disabled.
 +	 */
 +	u8 port_enabled_map;
 	bool legacy_phy_port_mapping;
 	struct qca8k_ports_config ports_config;
 	struct regmap *regmap;
 	struct mii_bus *bus;
 -	struct ar8xxx_port_status port_sts[QCA8K_NUM_PORTS];
 	struct dsa_switch *ds;
 	struct mutex reg_mutex;
 	struct device *dev;
--- a/target/linux/generic/backport-5.15/769-v5.19-03-net-dsa-qca8k-rework-and-simplify-mdiobus-logic.patch
+++ b/target/linux/generic/backport-5.15/769-v5.19-03-net-dsa-qca8k-rework-and-simplify-mdiobus-logic.patch
@ -0,0 +1,173 @@
 From 8255212e4130bd2dc1463286a3dddb74797bbdc1 Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <ansuelsmth@gmail.com>
 Date: Sat, 16 Apr 2022 01:30:14 +0200
 Subject: [PATCH 3/6] net: dsa: qca8k: rework and simplify mdiobus logic
 In an attempt to reduce qca8k_priv space, rework and simplify mdiobus
 logic.
 We now declare a mdiobus instead of relying on DSA phy_read/write even
 if a mdio node is not present. This is all to make the qca8k ops static
 and not switch specific. With a legacy implementation where port doesn't
 have a phy map declared in the dts with a mdio node, we declare a
 'qca8k-legacy' mdiobus. The conversion logic is used as legacy read and
 write ops are used instead of the internal one.
 Also drop the legacy_phy_port_mapping as we now declare mdiobus with ops
 that already address the workaround.
 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 95 +++++++++++++----------------------------
 drivers/net/dsa/qca8k.h |  1 -
 2 files changed, 29 insertions(+), 67 deletions(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -1291,83 +1291,63 @@ qca8k_internal_mdio_read(struct mii_bus
 }
 static int
 -qca8k_phy_write(struct dsa_switch *ds, int port, int regnum, u16 data)
 +qca8k_legacy_mdio_write(struct mii_bus *slave_bus, int port, int regnum, u16 data)
 {
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret;
 +	port = qca8k_port_to_phy(port) % PHY_MAX_ADDR;
 -	/* Check if the legacy mapping should be used and the
 -	 * port is not correctly mapped to the right PHY in the
 -	 * devicetree
 -	 */
 -	if (priv->legacy_phy_port_mapping)
 -		port = qca8k_port_to_phy(port) % PHY_MAX_ADDR;
 -
 -	/* Use mdio Ethernet when available, fallback to legacy one on error */
 -	ret = qca8k_phy_eth_command(priv, false, port, regnum, 0);
 -	if (!ret)
 -		return ret;
 -
 -	return qca8k_mdio_write(priv, port, regnum, data);
 +	return qca8k_internal_mdio_write(slave_bus, port, regnum, data);
 }
 static int
 -qca8k_phy_read(struct dsa_switch *ds, int port, int regnum)
 +qca8k_legacy_mdio_read(struct mii_bus *slave_bus, int port, int regnum)
 {
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret;
 -
 -	/* Check if the legacy mapping should be used and the
 -	 * port is not correctly mapped to the right PHY in the
 -	 * devicetree
 -	 */
 -	if (priv->legacy_phy_port_mapping)
 -		port = qca8k_port_to_phy(port) % PHY_MAX_ADDR;
 -
 -	/* Use mdio Ethernet when available, fallback to legacy one on error */
 -	ret = qca8k_phy_eth_command(priv, true, port, regnum, 0);
 -	if (ret >= 0)
 -		return ret;
 -
 -	ret = qca8k_mdio_read(priv, port, regnum);
 -
 -	if (ret < 0)
 -		return 0xffff;
 +	port = qca8k_port_to_phy(port) % PHY_MAX_ADDR;
 -	return ret;
 +	return qca8k_internal_mdio_read(slave_bus, port, regnum);
 }
 static int
 -qca8k_mdio_register(struct qca8k_priv *priv, struct device_node *mdio)
 +qca8k_mdio_register(struct qca8k_priv *priv)
 {
 	struct dsa_switch *ds = priv->ds;
 +	struct device_node *mdio;
 	struct mii_bus *bus;
 	bus = devm_mdiobus_alloc(ds->dev);
 -
 	if (!bus)
 		return -ENOMEM;
 	bus->priv = (void *)priv;
 -	bus->name = "qca8k slave mii";
 -	bus->read = qca8k_internal_mdio_read;
 -	bus->write = qca8k_internal_mdio_write;
 -	snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d",
 -		 ds->index);
 -
 	bus->parent = ds->dev;
 	bus->phy_mask = ~ds->phys_mii_mask;
 -
 	ds->slave_mii_bus = bus;
 -	return devm_of_mdiobus_register(priv->dev, bus, mdio);
 +	/* Check if the devicetree declare the port:phy mapping */
 +	mdio = of_get_child_by_name(priv->dev->of_node, "mdio");
 +	if (of_device_is_available(mdio)) {
 +		snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d", ds->index);
 +		bus->name = "qca8k slave mii";
 +		bus->read = qca8k_internal_mdio_read;
 +		bus->write = qca8k_internal_mdio_write;
 +		return devm_of_mdiobus_register(priv->dev, bus, mdio);
 +	}
 +
 +	/* If a mapping can't be found the legacy mapping is used,
 +	 * using the qca8k_port_to_phy function
 +	 */
 +	snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d.%d",
 +		 ds->dst->index, ds->index);
 +	bus->name = "qca8k-legacy slave mii";
 +	bus->read = qca8k_legacy_mdio_read;
 +	bus->write = qca8k_legacy_mdio_write;
 +	return devm_mdiobus_register(priv->dev, bus);
 }
 static int
 qca8k_setup_mdio_bus(struct qca8k_priv *priv)
 {
 	u32 internal_mdio_mask = 0, external_mdio_mask = 0, reg;
 -	struct device_node *ports, *port, *mdio;
 +	struct device_node *ports, *port;
 	phy_interface_t mode;
 	int err;
@@ -1429,24 +1409,7 @@ qca8k_setup_mdio_bus(struct qca8k_priv *
 					 QCA8K_MDIO_MASTER_EN);
 	}
 -	/* Check if the devicetree declare the port:phy mapping */
 -	mdio = of_get_child_by_name(priv->dev->of_node, "mdio");
 -	if (of_device_is_available(mdio)) {
 -		err = qca8k_mdio_register(priv, mdio);
 -		if (err)
 -			of_node_put(mdio);
 -
 -		return err;
 -	}
 -
 -	/* If a mapping can't be found the legacy mapping is used,
 -	 * using the qca8k_port_to_phy function
 -	 */
 -	priv->legacy_phy_port_mapping = true;
 -	priv->ops.phy_read = qca8k_phy_read;
 -	priv->ops.phy_write = qca8k_phy_write;
 -
 -	return 0;
 +	return qca8k_mdio_register(priv);
 }
 static int
 --- a/drivers/net/dsa/qca8k.h
 +++ b/drivers/net/dsa/qca8k.h
@@ -382,7 +382,6 @@ struct qca8k_priv {
 	 * Bit 1: port enabled. Bit 0: port disabled.
 	 */
 	u8 port_enabled_map;
 -	bool legacy_phy_port_mapping;
 	struct qca8k_ports_config ports_config;
 	struct regmap *regmap;
 	struct mii_bus *bus;
--- a/target/linux/generic/backport-5.15/769-v5.19-04-net-dsa-qca8k-drop-dsa_switch_ops-from-qca8k_priv.patch
+++ b/target/linux/generic/backport-5.15/769-v5.19-04-net-dsa-qca8k-drop-dsa_switch_ops-from-qca8k_priv.patch
@ -0,0 +1,39 @@
 From 2349b83a2486c55b9dd225326f0172a84a43c5e4 Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <ansuelsmth@gmail.com>
 Date: Sat, 16 Apr 2022 01:30:15 +0200
 Subject: [PATCH 4/6] net: dsa: qca8k: drop dsa_switch_ops from qca8k_priv
 Now that dsa_switch_ops is not switch specific anymore, we can drop it
 from qca8k_priv and use the static ops directly for the dsa_switch
 pointer.
 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 3 +--
 drivers/net/dsa/qca8k.h | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -3121,8 +3121,7 @@ qca8k_sw_probe(struct mdio_device *mdiod
 	priv->ds->dev = &mdiodev->dev;
 	priv->ds->num_ports = QCA8K_NUM_PORTS;
 	priv->ds->priv = priv;
 -	priv->ops = qca8k_switch_ops;
 -	priv->ds->ops = &priv->ops;
 +	priv->ds->ops = &qca8k_switch_ops;
 	mutex_init(&priv->reg_mutex);
 	dev_set_drvdata(&mdiodev->dev, priv);
 --- a/drivers/net/dsa/qca8k.h
 +++ b/drivers/net/dsa/qca8k.h
@@ -388,7 +388,6 @@ struct qca8k_priv {
 	struct dsa_switch *ds;
 	struct mutex reg_mutex;
 	struct device *dev;
 -	struct dsa_switch_ops ops;
 	struct gpio_desc *reset_gpio;
 	struct net_device *mgmt_master; /* Track if mdio/mib Ethernet is available */
 	struct qca8k_mgmt_eth_data mgmt_eth_data;
--- a/target/linux/generic/backport-5.15/769-v5.19-05-net-dsa-qca8k-correctly-handle-mdio-read-error.patch
+++ b/target/linux/generic/backport-5.15/769-v5.19-05-net-dsa-qca8k-correctly-handle-mdio-read-error.patch
@ -0,0 +1,33 @@
 From 6cfc03b602200c5cbbd8d906fd905547814e83df Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <ansuelsmth@gmail.com>
 Date: Sat, 16 Apr 2022 01:30:16 +0200
 Subject: [PATCH 5/6] net: dsa: qca8k: correctly handle mdio read error
 Restore original way to handle mdio read error by returning 0xffff.
 This was wrongly changed when the internal_mdio_read was introduced,
 now that both legacy and internal use the same function, make sure that
 they behave the same way.
 Fixes: ce062a0adbfe ("net: dsa: qca8k: fix kernel panic with legacy mdio mapping")
 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -1287,7 +1287,12 @@ qca8k_internal_mdio_read(struct mii_bus
 	if (ret >= 0)
 		return ret;
 -	return qca8k_mdio_read(priv, phy, regnum);
 +	ret = qca8k_mdio_read(priv, phy, regnum);
 +
 +	if (ret < 0)
 +		return 0xffff;
 +
 +	return ret;
 }
 static int
--- a/target/linux/generic/backport-5.15/769-v5.19-06-net-dsa-qca8k-unify-bus-id-naming-with-legacy-and-OF.patch
+++ b/target/linux/generic/backport-5.15/769-v5.19-06-net-dsa-qca8k-unify-bus-id-naming-with-legacy-and-OF.patch
@ -0,0 +1,44 @@
 From 8d1af50842bf2774f4edc57054206e909117469b Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <ansuelsmth@gmail.com>
 Date: Sat, 16 Apr 2022 01:30:17 +0200
 Subject: [PATCH 6/6] net: dsa: qca8k: unify bus id naming with legacy and OF
 mdio bus
 Add support for multiple switch with OF mdio bus declaration.
 Unify the bus id naming and use the same logic for both legacy and OF
 mdio bus.
 Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
 Signed-off-by: David S. Miller <davem@davemloft.net>
 ---
 drivers/net/dsa/qca8k.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
 --- a/drivers/net/dsa/qca8k.c
 +++ b/drivers/net/dsa/qca8k.c
@@ -1323,6 +1323,8 @@ qca8k_mdio_register(struct qca8k_priv *p
 		return -ENOMEM;
 	bus->priv = (void *)priv;
 +	snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d.%d",
 +		 ds->dst->index, ds->index);
 	bus->parent = ds->dev;
 	bus->phy_mask = ~ds->phys_mii_mask;
 	ds->slave_mii_bus = bus;
@@ -1330,7 +1332,6 @@ qca8k_mdio_register(struct qca8k_priv *p
 	/* Check if the devicetree declare the port:phy mapping */
 	mdio = of_get_child_by_name(priv->dev->of_node, "mdio");
 	if (of_device_is_available(mdio)) {
 -		snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d", ds->index);
 		bus->name = "qca8k slave mii";
 		bus->read = qca8k_internal_mdio_read;
 		bus->write = qca8k_internal_mdio_write;
@@ -1340,8 +1341,6 @@ qca8k_mdio_register(struct qca8k_priv *p
 	/* If a mapping can't be found the legacy mapping is used,
 	 * using the qca8k_port_to_phy function
 	 */
 -	snprintf(bus->id, MII_BUS_ID_SIZE, "qca8k-%d.%d",
 -		 ds->dst->index, ds->index);
 	bus->name = "qca8k-legacy slave mii";
 	bus->read = qca8k_legacy_mdio_read;
 	bus->write = qca8k_legacy_mdio_write;
--- a/target/linux/generic/backport-5.15/770-v6.0-net-dsa-qca8k-move-driver-to-qca-dir.patch
+++ b/target/linux/generic/backport-5.15/770-v6.0-net-dsa-qca8k-move-driver-to-qca-dir.patch
--- a/target/linux/generic/backport-5.15/771-v6.0-01-net-dsa-qca8k-cache-match-data-to-speed-up-access.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-01-net-dsa-qca8k-cache-match-data-to-speed-up-access.patch
@ -0,0 +1,157 @@
 From 3bb0844e7bcd0fb0bcfab6202b5edd349ef5250a Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:10 +0200
 Subject: [PATCH 01/14] net: dsa: qca8k: cache match data to speed up access
 Using of_device_get_match_data is expensive. Cache match data to speed
 up access and rework user of match data to use the new cached value.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k.c | 35 +++++++++++------------------------
 drivers/net/dsa/qca/qca8k.h |  1 +
 2 files changed, 12 insertions(+), 24 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k.c
 +++ b/drivers/net/dsa/qca/qca8k.c
@@ -1462,8 +1462,8 @@ static int qca8k_find_cpu_port(struct ds
 static int
 qca8k_setup_of_pws_reg(struct qca8k_priv *priv)
 {
 +	const struct qca8k_match_data *data = priv->info;
 	struct device_node *node = priv->dev->of_node;
 -	const struct qca8k_match_data *data;
 	u32 val = 0;
 	int ret;
@@ -1472,8 +1472,6 @@ qca8k_setup_of_pws_reg(struct qca8k_priv
 	 * Should be applied by default but we set this just to make sure.
 	 */
 	if (priv->switch_id == QCA8K_ID_QCA8327) {
 -		data = of_device_get_match_data(priv->dev);
 -
 		/* Set the correct package of 148 pin for QCA8327 */
 		if (data->reduced_package)
 			val |= QCA8327_PWS_PACKAGE148_EN;
@@ -2146,23 +2144,19 @@ qca8k_phylink_mac_link_up(struct dsa_swi
 static void
 qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data)
 {
 -	const struct qca8k_match_data *match_data;
 	struct qca8k_priv *priv = ds->priv;
 	int i;
 	if (stringset != ETH_SS_STATS)
 		return;
 -	match_data = of_device_get_match_data(priv->dev);
 -
 -	for (i = 0; i < match_data->mib_count; i++)
 +	for (i = 0; i < priv->info->mib_count; i++)
 		strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
 			ETH_GSTRING_LEN);
 }
 static void qca8k_mib_autocast_handler(struct dsa_switch *ds, struct sk_buff *skb)
 {
 -	const struct qca8k_match_data *match_data;
 	struct qca8k_mib_eth_data *mib_eth_data;
 	struct qca8k_priv *priv = ds->priv;
 	const struct qca8k_mib_desc *mib;
@@ -2181,10 +2175,9 @@ static void qca8k_mib_autocast_handler(s
 	if (port != mib_eth_data->req_port)
 		goto exit;
 -	match_data = device_get_match_data(priv->dev);
 	data = mib_eth_data->data;
 -	for (i = 0; i < match_data->mib_count; i++) {
 +	for (i = 0; i < priv->info->mib_count; i++) {
 		mib = &ar8327_mib[i];
 		/* First 3 mib are present in the skb head */
@@ -2256,7 +2249,6 @@ qca8k_get_ethtool_stats(struct dsa_switc
 			uint64_t *data)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	const struct qca8k_match_data *match_data;
 	const struct qca8k_mib_desc *mib;
 	u32 reg, i, val;
 	u32 hi = 0;
@@ -2266,9 +2258,7 @@ qca8k_get_ethtool_stats(struct dsa_switc
 	    qca8k_get_ethtool_stats_eth(ds, port, data) > 0)
 		return;
 -	match_data = of_device_get_match_data(priv->dev);
 -
 -	for (i = 0; i < match_data->mib_count; i++) {
 +	for (i = 0; i < priv->info->mib_count; i++) {
 		mib = &ar8327_mib[i];
 		reg = QCA8K_PORT_MIB_COUNTER(port) + mib->offset;
@@ -2291,15 +2281,12 @@ qca8k_get_ethtool_stats(struct dsa_switc
 static int
 qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
 {
 -	const struct qca8k_match_data *match_data;
 	struct qca8k_priv *priv = ds->priv;
 	if (sset != ETH_SS_STATS)
 		return 0;
 -	match_data = of_device_get_match_data(priv->dev);
 -
 -	return match_data->mib_count;
 +	return priv->info->mib_count;
 }
 static int
@@ -3037,14 +3024,11 @@ static const struct dsa_switch_ops qca8k
 static int qca8k_read_switch_id(struct qca8k_priv *priv)
 {
 -	const struct qca8k_match_data *data;
 	u32 val;
 	u8 id;
 	int ret;
 -	/* get the switches ID from the compatible */
 -	data = of_device_get_match_data(priv->dev);
 -	if (!data)
 +	if (!priv->info)
 		return -ENODEV;
 	ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val);
@@ -3052,8 +3036,10 @@ static int qca8k_read_switch_id(struct q
 		return -ENODEV;
 	id = QCA8K_MASK_CTRL_DEVICE_ID(val);
 -	if (id != data->id) {
 -		dev_err(priv->dev, "Switch id detected %x but expected %x", id, data->id);
 +	if (id != priv->info->id) {
 +		dev_err(priv->dev,
 +			"Switch id detected %x but expected %x",
 +			id, priv->info->id);
 		return -ENODEV;
 	}
@@ -3078,6 +3064,7 @@ qca8k_sw_probe(struct mdio_device *mdiod
 	if (!priv)
 		return -ENOMEM;
 +	priv->info = of_device_get_match_data(priv->dev);
 	priv->bus = mdiodev->bus;
 	priv->dev = &mdiodev->dev;
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -393,6 +393,7 @@ struct qca8k_priv {
 	struct qca8k_mgmt_eth_data mgmt_eth_data;
 	struct qca8k_mib_eth_data mib_eth_data;
 	struct qca8k_mdio_cache mdio_cache;
 +	const struct qca8k_match_data *info;
 };
 struct qca8k_mib_desc {
--- a/target/linux/generic/backport-5.15/771-v6.0-02-net-dsa-qca8k-make-mib-autocast-feature-optional.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-02-net-dsa-qca8k-make-mib-autocast-feature-optional.patch
@ -0,0 +1,77 @@
 From 533c64bca62a8654f00698bc893f639013e38c7b Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:11 +0200
 Subject: [PATCH 02/14] net: dsa: qca8k: make mib autocast feature optional
 Some switch may not support mib autocast feature and require the legacy
 way of reading the regs directly.
 Make the mib autocast feature optional and permit to declare support for
 it using match_data struct in a dedicated qca8k_info_ops struct.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k.c | 11 +++++++++--
 drivers/net/dsa/qca/qca8k.h |  5 +++++
 2 files changed, 14 insertions(+), 2 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k.c
 +++ b/drivers/net/dsa/qca/qca8k.c
@@ -2254,8 +2254,8 @@ qca8k_get_ethtool_stats(struct dsa_switc
 	u32 hi = 0;
 	int ret;
 -	if (priv->mgmt_master &&
 -	    qca8k_get_ethtool_stats_eth(ds, port, data) > 0)
 +	if (priv->mgmt_master && priv->info->ops->autocast_mib &&
 +	    priv->info->ops->autocast_mib(ds, port, data) > 0)
 		return;
 	for (i = 0; i < priv->info->mib_count; i++) {
@@ -3187,20 +3187,27 @@ static int qca8k_resume(struct device *d
 static SIMPLE_DEV_PM_OPS(qca8k_pm_ops,
 			 qca8k_suspend, qca8k_resume);
 +static const struct qca8k_info_ops qca8xxx_ops = {
 +	.autocast_mib = qca8k_get_ethtool_stats_eth,
 +};
 +
 static const struct qca8k_match_data qca8327 = {
 	.id = QCA8K_ID_QCA8327,
 	.reduced_package = true,
 	.mib_count = QCA8K_QCA832X_MIB_COUNT,
 +	.ops = &qca8xxx_ops,
 };
 static const struct qca8k_match_data qca8328 = {
 	.id = QCA8K_ID_QCA8327,
 	.mib_count = QCA8K_QCA832X_MIB_COUNT,
 +	.ops = &qca8xxx_ops,
 };
 static const struct qca8k_match_data qca833x = {
 	.id = QCA8K_ID_QCA8337,
 	.mib_count = QCA8K_QCA833X_MIB_COUNT,
 +	.ops = &qca8xxx_ops,
 };
 static const struct of_device_id qca8k_of_match[] = {
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -324,10 +324,15 @@ enum qca8k_mid_cmd {
 	QCA8K_MIB_CAST = 3,
 };
 +struct qca8k_info_ops {
 +	int (*autocast_mib)(struct dsa_switch *ds, int port, u64 *data);
 +};
 +
 struct qca8k_match_data {
 	u8 id;
 	bool reduced_package;
 	u8 mib_count;
 +	const struct qca8k_info_ops *ops;
 };
 enum {
--- a/target/linux/generic/backport-5.15/771-v6.0-03-net-dsa-qca8k-move-mib-struct-to-common-code.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-03-net-dsa-qca8k-move-mib-struct-to-common-code.patch
--- a/target/linux/generic/backport-5.15/771-v6.0-04-net-dsa-qca8k-move-qca8k-read-write-rmw-and-reg-tabl.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-04-net-dsa-qca8k-move-qca8k-read-write-rmw-and-reg-tabl.patch
@ -0,0 +1,135 @@
 From d5f901eab2e9dfed1095995dfc98f231f4fd2971 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:13 +0200
 Subject: [PATCH 04/14] net: dsa: qca8k: move qca8k read/write/rmw and reg
 table to common code
 The same reg table and read/write/rmw function are used by drivers
 based on qca8k family switch.
 Move them to common code to make it accessible also by other drivers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 42 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 38 +++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  6 +++++
 3 files changed, 44 insertions(+), 42 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -133,24 +133,6 @@ qca8k_set_page(struct qca8k_priv *priv,
 	return 0;
 }
 -static int
 -qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val)
 -{
 -	return regmap_read(priv->regmap, reg, val);
 -}
 -
 -static int
 -qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val)
 -{
 -	return regmap_write(priv->regmap, reg, val);
 -}
 -
 -static int
 -qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val)
 -{
 -	return regmap_update_bits(priv->regmap, reg, mask, write_val);
 -}
 -
 static void qca8k_rw_reg_ack_handler(struct dsa_switch *ds, struct sk_buff *skb)
 {
 	struct qca8k_mgmt_eth_data *mgmt_eth_data;
@@ -483,30 +465,6 @@ exit:
 	return ret;
 }
 -static const struct regmap_range qca8k_readable_ranges[] = {
 -	regmap_reg_range(0x0000, 0x00e4), /* Global control */
 -	regmap_reg_range(0x0100, 0x0168), /* EEE control */
 -	regmap_reg_range(0x0200, 0x0270), /* Parser control */
 -	regmap_reg_range(0x0400, 0x0454), /* ACL */
 -	regmap_reg_range(0x0600, 0x0718), /* Lookup */
 -	regmap_reg_range(0x0800, 0x0b70), /* QM */
 -	regmap_reg_range(0x0c00, 0x0c80), /* PKT */
 -	regmap_reg_range(0x0e00, 0x0e98), /* L3 */
 -	regmap_reg_range(0x1000, 0x10ac), /* MIB - Port0 */
 -	regmap_reg_range(0x1100, 0x11ac), /* MIB - Port1 */
 -	regmap_reg_range(0x1200, 0x12ac), /* MIB - Port2 */
 -	regmap_reg_range(0x1300, 0x13ac), /* MIB - Port3 */
 -	regmap_reg_range(0x1400, 0x14ac), /* MIB - Port4 */
 -	regmap_reg_range(0x1500, 0x15ac), /* MIB - Port5 */
 -	regmap_reg_range(0x1600, 0x16ac), /* MIB - Port6 */
 -
 -};
 -
 -static const struct regmap_access_table qca8k_readable_table = {
 -	.yes_ranges = qca8k_readable_ranges,
 -	.n_yes_ranges = ARRAY_SIZE(qca8k_readable_ranges),
 -};
 -
 static struct regmap_config qca8k_regmap_config = {
 	.reg_bits = 16,
 	.val_bits = 32,
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -61,3 +61,41 @@ const struct qca8k_mib_desc ar8327_mib[]
 	MIB_DESC(1, 0xa8, "RXUnicast"),
 	MIB_DESC(1, 0xac, "TXUnicast"),
 };
 +
 +int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val)
 +{
 +	return regmap_read(priv->regmap, reg, val);
 +}
 +
 +int qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val)
 +{
 +	return regmap_write(priv->regmap, reg, val);
 +}
 +
 +int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val)
 +{
 +	return regmap_update_bits(priv->regmap, reg, mask, write_val);
 +}
 +
 +static const struct regmap_range qca8k_readable_ranges[] = {
 +	regmap_reg_range(0x0000, 0x00e4), /* Global control */
 +	regmap_reg_range(0x0100, 0x0168), /* EEE control */
 +	regmap_reg_range(0x0200, 0x0270), /* Parser control */
 +	regmap_reg_range(0x0400, 0x0454), /* ACL */
 +	regmap_reg_range(0x0600, 0x0718), /* Lookup */
 +	regmap_reg_range(0x0800, 0x0b70), /* QM */
 +	regmap_reg_range(0x0c00, 0x0c80), /* PKT */
 +	regmap_reg_range(0x0e00, 0x0e98), /* L3 */
 +	regmap_reg_range(0x1000, 0x10ac), /* MIB - Port0 */
 +	regmap_reg_range(0x1100, 0x11ac), /* MIB - Port1 */
 +	regmap_reg_range(0x1200, 0x12ac), /* MIB - Port2 */
 +	regmap_reg_range(0x1300, 0x13ac), /* MIB - Port3 */
 +	regmap_reg_range(0x1400, 0x14ac), /* MIB - Port4 */
 +	regmap_reg_range(0x1500, 0x15ac), /* MIB - Port5 */
 +	regmap_reg_range(0x1600, 0x16ac), /* MIB - Port6 */
 +};
 +
 +const struct regmap_access_table qca8k_readable_table = {
 +	.yes_ranges = qca8k_readable_ranges,
 +	.n_yes_ranges = ARRAY_SIZE(qca8k_readable_ranges),
 +};
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -416,5 +416,11 @@ struct qca8k_fdb {
 /* Common setup function */
 extern const struct qca8k_mib_desc ar8327_mib[];
 +extern const struct regmap_access_table qca8k_readable_table;
 +
 +/* Common read/write/rmw function */
 +int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
 +int qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val);
 +int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val);
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-05-net-dsa-qca8k-move-qca8k-bulk-read-write-helper-to-c.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-05-net-dsa-qca8k-move-qca8k-bulk-read-write-helper-to-c.patch
@ -0,0 +1,145 @@
 From 910746444313dc463396cd63024cdf54ef04ef39 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:14 +0200
 Subject: [PATCH 05/14] net: dsa: qca8k: move qca8k bulk read/write helper to
 common code
 The same ATU function are used by drivers based on qca8k family switch.
 Move the bulk read/write helper to common code to declare these shared
 ATU functions in common code.
 These helper will be dropped when regmap correctly support bulk
 read/write.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 39 ++----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 39 ++++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  8 ++++++
 3 files changed, 49 insertions(+), 37 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -343,43 +343,6 @@ qca8k_regmap_update_bits_eth(struct qca8
 }
 static int
 -qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 -{
 -	int i, count = len / sizeof(u32), ret;
 -
 -	if (priv->mgmt_master && !qca8k_read_eth(priv, reg, val, len))
 -		return 0;
 -
 -	for (i = 0; i < count; i++) {
 -		ret = regmap_read(priv->regmap, reg + (i * 4), val + i);
 -		if (ret < 0)
 -			return ret;
 -	}
 -
 -	return 0;
 -}
 -
 -static int
 -qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 -{
 -	int i, count = len / sizeof(u32), ret;
 -	u32 tmp;
 -
 -	if (priv->mgmt_master && !qca8k_write_eth(priv, reg, val, len))
 -		return 0;
 -
 -	for (i = 0; i < count; i++) {
 -		tmp = val[i];
 -
 -		ret = regmap_write(priv->regmap, reg + (i * 4), tmp);
 -		if (ret < 0)
 -			return ret;
 -	}
 -
 -	return 0;
 -}
 -
 -static int
 qca8k_regmap_read(void *ctx, uint32_t reg, uint32_t *val)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ctx;
@@ -3096,6 +3059,8 @@ static SIMPLE_DEV_PM_OPS(qca8k_pm_ops,
 static const struct qca8k_info_ops qca8xxx_ops = {
 	.autocast_mib = qca8k_get_ethtool_stats_eth,
 +	.read_eth = qca8k_read_eth,
 +	.write_eth = qca8k_write_eth,
 };
 static const struct qca8k_match_data qca8327 = {
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -99,3 +99,42 @@ const struct regmap_access_table qca8k_r
 	.yes_ranges = qca8k_readable_ranges,
 	.n_yes_ranges = ARRAY_SIZE(qca8k_readable_ranges),
 };
 +
 +/* TODO: remove these extra ops when we can support regmap bulk read/write */
 +int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 +{
 +	int i, count = len / sizeof(u32), ret;
 +
 +	if (priv->mgmt_master && priv->info->ops->read_eth &&
 +	    !priv->info->ops->read_eth(priv, reg, val, len))
 +		return 0;
 +
 +	for (i = 0; i < count; i++) {
 +		ret = regmap_read(priv->regmap, reg + (i * 4), val + i);
 +		if (ret < 0)
 +			return ret;
 +	}
 +
 +	return 0;
 +}
 +
 +/* TODO: remove these extra ops when we can support regmap bulk read/write */
 +int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 +{
 +	int i, count = len / sizeof(u32), ret;
 +	u32 tmp;
 +
 +	if (priv->mgmt_master && priv->info->ops->write_eth &&
 +	    !priv->info->ops->write_eth(priv, reg, val, len))
 +		return 0;
 +
 +	for (i = 0; i < count; i++) {
 +		tmp = val[i];
 +
 +		ret = regmap_write(priv->regmap, reg + (i * 4), tmp);
 +		if (ret < 0)
 +			return ret;
 +	}
 +
 +	return 0;
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -324,8 +324,13 @@ enum qca8k_mid_cmd {
 	QCA8K_MIB_CAST = 3,
 };
 +struct qca8k_priv;
 +
 struct qca8k_info_ops {
 	int (*autocast_mib)(struct dsa_switch *ds, int port, u64 *data);
 +	/* TODO: remove these extra ops when we can support regmap bulk read/write */
 +	int (*read_eth)(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 +	int (*write_eth)(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 };
 struct qca8k_match_data {
@@ -423,4 +428,7 @@ int qca8k_read(struct qca8k_priv *priv,
 int qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val);
 int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val);
 +int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 +int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-06-net-dsa-qca8k-move-mib-init-function-to-common-code.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-06-net-dsa-qca8k-move-mib-init-function-to-common-code.patch
@ -0,0 +1,137 @@
 From fce1ec0c4e2d03d9c62ffc615a42bdba78eb4c14 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:15 +0200
 Subject: [PATCH 06/14] net: dsa: qca8k: move mib init function to common code
 The same mib function is used by drivers based on qca8k family switch.
 Move it to common code to make it accessible also by other drivers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 37 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 35 ++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  4 ++++
 3 files changed, 39 insertions(+), 37 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -442,15 +442,6 @@ static struct regmap_config qca8k_regmap
 };
 static int
 -qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
 -{
 -	u32 val;
 -
 -	return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
 -				       QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
 -}
 -
 -static int
 qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
 {
 	u32 reg[3];
@@ -777,34 +768,6 @@ out:
 	return ret;
 }
 -static int
 -qca8k_mib_init(struct qca8k_priv *priv)
 -{
 -	int ret;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
 -				 QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
 -				 FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
 -				 QCA8K_MIB_BUSY);
 -	if (ret)
 -		goto exit;
 -
 -	ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
 -	if (ret)
 -		goto exit;
 -
 -	ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
 -	if (ret)
 -		goto exit;
 -
 -	ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
 -
 -exit:
 -	mutex_unlock(&priv->reg_mutex);
 -	return ret;
 -}
 -
 static void
 qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
 {
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -7,6 +7,7 @@
  */
 #include <linux/netdevice.h>
 +#include <linux/bitfield.h>
 #include <net/dsa.h>
 #include "qca8k.h"
@@ -138,3 +139,38 @@ int qca8k_bulk_write(struct qca8k_priv *
 	return 0;
 }
 +
 +int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
 +{
 +	u32 val;
 +
 +	return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
 +				       QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
 +}
 +
 +int qca8k_mib_init(struct qca8k_priv *priv)
 +{
 +	int ret;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	ret = regmap_update_bits(priv->regmap, QCA8K_REG_MIB,
 +				 QCA8K_MIB_FUNC | QCA8K_MIB_BUSY,
 +				 FIELD_PREP(QCA8K_MIB_FUNC, QCA8K_MIB_FLUSH) |
 +				 QCA8K_MIB_BUSY);
 +	if (ret)
 +		goto exit;
 +
 +	ret = qca8k_busy_wait(priv, QCA8K_REG_MIB, QCA8K_MIB_BUSY);
 +	if (ret)
 +		goto exit;
 +
 +	ret = regmap_set_bits(priv->regmap, QCA8K_REG_MIB, QCA8K_MIB_CPU_KEEP);
 +	if (ret)
 +		goto exit;
 +
 +	ret = qca8k_write(priv, QCA8K_REG_MODULE_EN, QCA8K_MODULE_EN_MIB);
 +
 +exit:
 +	mutex_unlock(&priv->reg_mutex);
 +	return ret;
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -422,6 +422,7 @@ struct qca8k_fdb {
 /* Common setup function */
 extern const struct qca8k_mib_desc ar8327_mib[];
 extern const struct regmap_access_table qca8k_readable_table;
 +int qca8k_mib_init(struct qca8k_priv *priv);
 /* Common read/write/rmw function */
 int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
@@ -431,4 +432,7 @@ int qca8k_rmw(struct qca8k_priv *priv, u
 int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 +/* Common ops function */
 +int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-07-net-dsa-qca8k-move-port-set-status-eee-ethtool-stats.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-07-net-dsa-qca8k-move-port-set-status-eee-ethtool-stats.patch
@ -0,0 +1,281 @@
 From 472fcea160f27a5d9b7526093d9d8d89ba0b6137 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:16 +0200
 Subject: [PATCH 07/14] net: dsa: qca8k: move port set status/eee/ethtool stats
 function to common code
 The same logic to disable/enable port, set eee and get ethtool stats is
 used by drivers based on qca8k family switch.
 Move it to common code to make it accessible also by other drivers.
 While at it also drop unnecessary qca8k_priv cast for void pointers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 105 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 102 ++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  11 +++
 3 files changed, 113 insertions(+), 105 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -768,21 +768,6 @@ out:
 	return ret;
 }
 -static void
 -qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
 -{
 -	u32 mask = QCA8K_PORT_STATUS_TXMAC | QCA8K_PORT_STATUS_RXMAC;
 -
 -	/* Port 0 and 6 have no internal PHY */
 -	if (port > 0 && port < 6)
 -		mask |= QCA8K_PORT_STATUS_LINK_AUTO;
 -
 -	if (enable)
 -		regmap_set_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
 -	else
 -		regmap_clear_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
 -}
 -
 static int
 qca8k_phy_eth_busy_wait(struct qca8k_mgmt_eth_data *mgmt_eth_data,
 			struct sk_buff *read_skb, u32 *val)
@@ -1974,20 +1959,6 @@ qca8k_phylink_mac_link_up(struct dsa_swi
 	qca8k_write(priv, QCA8K_REG_PORT_STATUS(port), reg);
 }
 -static void
 -qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	int i;
 -
 -	if (stringset != ETH_SS_STATS)
 -		return;
 -
 -	for (i = 0; i < priv->info->mib_count; i++)
 -		strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
 -			ETH_GSTRING_LEN);
 -}
 -
 static void qca8k_mib_autocast_handler(struct dsa_switch *ds, struct sk_buff *skb)
 {
 	struct qca8k_mib_eth_data *mib_eth_data;
@@ -2078,82 +2049,6 @@ exit:
 }
 static void
 -qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 -			uint64_t *data)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	const struct qca8k_mib_desc *mib;
 -	u32 reg, i, val;
 -	u32 hi = 0;
 -	int ret;
 -
 -	if (priv->mgmt_master && priv->info->ops->autocast_mib &&
 -	    priv->info->ops->autocast_mib(ds, port, data) > 0)
 -		return;
 -
 -	for (i = 0; i < priv->info->mib_count; i++) {
 -		mib = &ar8327_mib[i];
 -		reg = QCA8K_PORT_MIB_COUNTER(port) + mib->offset;
 -
 -		ret = qca8k_read(priv, reg, &val);
 -		if (ret < 0)
 -			continue;
 -
 -		if (mib->size == 2) {
 -			ret = qca8k_read(priv, reg + 4, &hi);
 -			if (ret < 0)
 -				continue;
 -		}
 -
 -		data[i] = val;
 -		if (mib->size == 2)
 -			data[i] |= (u64)hi << 32;
 -	}
 -}
 -
 -static int
 -qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -
 -	if (sset != ETH_SS_STATS)
 -		return 0;
 -
 -	return priv->info->mib_count;
 -}
 -
 -static int
 -qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	u32 lpi_en = QCA8K_REG_EEE_CTRL_LPI_EN(port);
 -	u32 reg;
 -	int ret;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	ret = qca8k_read(priv, QCA8K_REG_EEE_CTRL, &reg);
 -	if (ret < 0)
 -		goto exit;
 -
 -	if (eee->eee_enabled)
 -		reg |= lpi_en;
 -	else
 -		reg &= ~lpi_en;
 -	ret = qca8k_write(priv, QCA8K_REG_EEE_CTRL, reg);
 -
 -exit:
 -	mutex_unlock(&priv->reg_mutex);
 -	return ret;
 -}
 -
 -static int
 -qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
 -{
 -	/* Nothing to do on the port's MAC */
 -	return 0;
 -}
 -
 -static void
 qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 {
 	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -174,3 +174,105 @@ exit:
 	mutex_unlock(&priv->reg_mutex);
 	return ret;
 }
 +
 +void qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable)
 +{
 +	u32 mask = QCA8K_PORT_STATUS_TXMAC | QCA8K_PORT_STATUS_RXMAC;
 +
 +	/* Port 0 and 6 have no internal PHY */
 +	if (port > 0 && port < 6)
 +		mask |= QCA8K_PORT_STATUS_LINK_AUTO;
 +
 +	if (enable)
 +		regmap_set_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
 +	else
 +		regmap_clear_bits(priv->regmap, QCA8K_REG_PORT_STATUS(port), mask);
 +}
 +
 +void qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset,
 +		       uint8_t *data)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int i;
 +
 +	if (stringset != ETH_SS_STATS)
 +		return;
 +
 +	for (i = 0; i < priv->info->mib_count; i++)
 +		strncpy(data + i * ETH_GSTRING_LEN, ar8327_mib[i].name,
 +			ETH_GSTRING_LEN);
 +}
 +
 +void qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 +			     uint64_t *data)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	const struct qca8k_mib_desc *mib;
 +	u32 reg, i, val;
 +	u32 hi = 0;
 +	int ret;
 +
 +	if (priv->mgmt_master && priv->info->ops->autocast_mib &&
 +	    priv->info->ops->autocast_mib(ds, port, data) > 0)
 +		return;
 +
 +	for (i = 0; i < priv->info->mib_count; i++) {
 +		mib = &ar8327_mib[i];
 +		reg = QCA8K_PORT_MIB_COUNTER(port) + mib->offset;
 +
 +		ret = qca8k_read(priv, reg, &val);
 +		if (ret < 0)
 +			continue;
 +
 +		if (mib->size == 2) {
 +			ret = qca8k_read(priv, reg + 4, &hi);
 +			if (ret < 0)
 +				continue;
 +		}
 +
 +		data[i] = val;
 +		if (mib->size == 2)
 +			data[i] |= (u64)hi << 32;
 +	}
 +}
 +
 +int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +
 +	if (sset != ETH_SS_STATS)
 +		return 0;
 +
 +	return priv->info->mib_count;
 +}
 +
 +int qca8k_set_mac_eee(struct dsa_switch *ds, int port,
 +		      struct ethtool_eee *eee)
 +{
 +	u32 lpi_en = QCA8K_REG_EEE_CTRL_LPI_EN(port);
 +	struct qca8k_priv *priv = ds->priv;
 +	u32 reg;
 +	int ret;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	ret = qca8k_read(priv, QCA8K_REG_EEE_CTRL, &reg);
 +	if (ret < 0)
 +		goto exit;
 +
 +	if (eee->eee_enabled)
 +		reg |= lpi_en;
 +	else
 +		reg &= ~lpi_en;
 +	ret = qca8k_write(priv, QCA8K_REG_EEE_CTRL, reg);
 +
 +exit:
 +	mutex_unlock(&priv->reg_mutex);
 +	return ret;
 +}
 +
 +int qca8k_get_mac_eee(struct dsa_switch *ds, int port,
 +		      struct ethtool_eee *e)
 +{
 +	/* Nothing to do on the port's MAC */
 +	return 0;
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -423,6 +423,7 @@ struct qca8k_fdb {
 extern const struct qca8k_mib_desc ar8327_mib[];
 extern const struct regmap_access_table qca8k_readable_table;
 int qca8k_mib_init(struct qca8k_priv *priv);
 +void qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable);
 /* Common read/write/rmw function */
 int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
@@ -435,4 +436,14 @@ int qca8k_bulk_write(struct qca8k_priv *
 /* Common ops function */
 int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask);
 +/* Common ethtool stats function */
 +void qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data);
 +void qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 +			     uint64_t *data);
 +int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset);
 +
 +/* Common eee function */
 +int qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee);
 +int qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-08-net-dsa-qca8k-move-bridge-functions-to-common-code.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-08-net-dsa-qca8k-move-bridge-functions-to-common-code.patch
@ -0,0 +1,237 @@
 From fd3cae2f3ac190d06e48f43739237e02f9dc51ff Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:17 +0200
 Subject: [PATCH 08/14] net: dsa: qca8k: move bridge functions to common code
 The same bridge functions are used by drivers based on qca8k family
 switch. Move them to common code to make them accessible also by other
 drivers.
 While at it also drop unnecessary qca8k_priv cast for void pointers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 93 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 93 ++++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  9 +++
 3 files changed, 102 insertions(+), 93 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -2049,97 +2049,6 @@ exit:
 }
 static void
 -qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	u32 stp_state;
 -
 -	switch (state) {
 -	case BR_STATE_DISABLED:
 -		stp_state = QCA8K_PORT_LOOKUP_STATE_DISABLED;
 -		break;
 -	case BR_STATE_BLOCKING:
 -		stp_state = QCA8K_PORT_LOOKUP_STATE_BLOCKING;
 -		break;
 -	case BR_STATE_LISTENING:
 -		stp_state = QCA8K_PORT_LOOKUP_STATE_LISTENING;
 -		break;
 -	case BR_STATE_LEARNING:
 -		stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
 -		break;
 -	case BR_STATE_FORWARDING:
 -	default:
 -		stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
 -		break;
 -	}
 -
 -	qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 -		  QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
 -}
 -
 -static int
 -qca8k_port_bridge_join(struct dsa_switch *ds, int port, struct net_device *br)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	int port_mask, cpu_port;
 -	int i, ret;
 -
 -	cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
 -	port_mask = BIT(cpu_port);
 -
 -	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 -		if (dsa_is_cpu_port(ds, i))
 -			continue;
 -		if (dsa_to_port(ds, i)->bridge_dev != br)
 -			continue;
 -		/* Add this port to the portvlan mask of the other ports
 -		 * in the bridge
 -		 */
 -		ret = regmap_set_bits(priv->regmap,
 -				      QCA8K_PORT_LOOKUP_CTRL(i),
 -				      BIT(port));
 -		if (ret)
 -			return ret;
 -		if (i != port)
 -			port_mask |= BIT(i);
 -	}
 -
 -	/* Add all other ports to this ports portvlan mask */
 -	ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 -			QCA8K_PORT_LOOKUP_MEMBER, port_mask);
 -
 -	return ret;
 -}
 -
 -static void
 -qca8k_port_bridge_leave(struct dsa_switch *ds, int port, struct net_device *br)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	int cpu_port, i;
 -
 -	cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
 -
 -	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 -		if (dsa_is_cpu_port(ds, i))
 -			continue;
 -		if (dsa_to_port(ds, i)->bridge_dev != br)
 -			continue;
 -		/* Remove this port to the portvlan mask of the other ports
 -		 * in the bridge
 -		 */
 -		regmap_clear_bits(priv->regmap,
 -				  QCA8K_PORT_LOOKUP_CTRL(i),
 -				  BIT(port));
 -	}
 -
 -	/* Set the cpu port to be the only one in the portvlan mask of
 -	 * this port
 -	 */
 -	qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 -		  QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
 -}
 -
 -static void
 qca8k_port_fast_age(struct dsa_switch *ds, int port)
 {
 	struct qca8k_priv *priv = ds->priv;
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -9,6 +9,7 @@
 #include <linux/netdevice.h>
 #include <linux/bitfield.h>
 #include <net/dsa.h>
 +#include <linux/if_bridge.h>
 #include "qca8k.h"
@@ -276,3 +277,93 @@ int qca8k_get_mac_eee(struct dsa_switch
 	/* Nothing to do on the port's MAC */
 	return 0;
 }
 +
 +void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	u32 stp_state;
 +
 +	switch (state) {
 +	case BR_STATE_DISABLED:
 +		stp_state = QCA8K_PORT_LOOKUP_STATE_DISABLED;
 +		break;
 +	case BR_STATE_BLOCKING:
 +		stp_state = QCA8K_PORT_LOOKUP_STATE_BLOCKING;
 +		break;
 +	case BR_STATE_LISTENING:
 +		stp_state = QCA8K_PORT_LOOKUP_STATE_LISTENING;
 +		break;
 +	case BR_STATE_LEARNING:
 +		stp_state = QCA8K_PORT_LOOKUP_STATE_LEARNING;
 +		break;
 +	case BR_STATE_FORWARDING:
 +	default:
 +		stp_state = QCA8K_PORT_LOOKUP_STATE_FORWARD;
 +		break;
 +	}
 +
 +	qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 +		  QCA8K_PORT_LOOKUP_STATE_MASK, stp_state);
 +}
 +
 +int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
 +			   struct net_device *br)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int port_mask, cpu_port;
 +	int i, ret;
 +
 +	cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
 +	port_mask = BIT(cpu_port);
 +
 +	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 +		if (dsa_is_cpu_port(ds, i))
 +			continue;
 +		if (dsa_to_port(ds, i)->bridge_dev != br)
 +			continue;
 +		/* Add this port to the portvlan mask of the other ports
 +		 * in the bridge
 +		 */
 +		ret = regmap_set_bits(priv->regmap,
 +				      QCA8K_PORT_LOOKUP_CTRL(i),
 +				      BIT(port));
 +		if (ret)
 +			return ret;
 +		if (i != port)
 +			port_mask |= BIT(i);
 +	}
 +
 +	/* Add all other ports to this ports portvlan mask */
 +	ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 +			QCA8K_PORT_LOOKUP_MEMBER, port_mask);
 +
 +	return ret;
 +}
 +
 +void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 +			     struct net_device *br)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int cpu_port, i;
 +
 +	cpu_port = dsa_to_port(ds, port)->cpu_dp->index;
 +
 +	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 +		if (dsa_is_cpu_port(ds, i))
 +			continue;
 +		if (dsa_to_port(ds, i)->bridge_dev != br)
 +			continue;
 +		/* Remove this port to the portvlan mask of the other ports
 +		 * in the bridge
 +		 */
 +		regmap_clear_bits(priv->regmap,
 +				  QCA8K_PORT_LOOKUP_CTRL(i),
 +				  BIT(port));
 +	}
 +
 +	/* Set the cpu port to be the only one in the portvlan mask of
 +	 * this port
 +	 */
 +	qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 +		  QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -446,4 +446,11 @@ int qca8k_get_sset_count(struct dsa_swit
 int qca8k_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *eee);
 int qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e);
 +/* Common bridge function */
 +void qca8k_port_stp_state_set(struct dsa_switch *ds, int port, u8 state);
 +int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
 +			   struct net_device *br);
 +void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 +			     struct net_device *br);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-09-net-dsa-qca8k-move-set-age-MTU-port-enable-disable-f.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-09-net-dsa-qca8k-move-set-age-MTU-port-enable-disable-f.patch
@ -0,0 +1,227 @@
 From b3a302b171f73425b41de8d3357fae3fa7057322 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:18 +0200
 Subject: [PATCH 09/14] net: dsa: qca8k: move set age/MTU/port enable/disable
 functions to common code
 The same set age, MTU and port enable/disable function are used by
 driver based on qca8k family switch.
 Move them to common code to make them accessible also by other drivers.
 While at it also drop unnecessary qca8k_priv cast for void pointers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 88 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 85 +++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        | 12 ++++
 3 files changed, 97 insertions(+), 88 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -2059,94 +2059,6 @@ qca8k_port_fast_age(struct dsa_switch *d
 }
 static int
 -qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	unsigned int secs = msecs / 1000;
 -	u32 val;
 -
 -	/* AGE_TIME reg is set in 7s step */
 -	val = secs / 7;
 -
 -	/* Handle case with 0 as val to NOT disable
 -	 * learning
 -	 */
 -	if (!val)
 -		val = 1;
 -
 -	return regmap_update_bits(priv->regmap, QCA8K_REG_ATU_CTRL, QCA8K_ATU_AGE_TIME_MASK,
 -				  QCA8K_ATU_AGE_TIME(val));
 -}
 -
 -static int
 -qca8k_port_enable(struct dsa_switch *ds, int port,
 -		  struct phy_device *phy)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -
 -	qca8k_port_set_status(priv, port, 1);
 -	priv->port_enabled_map |= BIT(port);
 -
 -	if (dsa_is_user_port(ds, port))
 -		phy_support_asym_pause(phy);
 -
 -	return 0;
 -}
 -
 -static void
 -qca8k_port_disable(struct dsa_switch *ds, int port)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -
 -	qca8k_port_set_status(priv, port, 0);
 -	priv->port_enabled_map &= ~BIT(port);
 -}
 -
 -static int
 -qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret;
 -
 -	/* We have only have a general MTU setting.
 -	 * DSA always set the CPU port's MTU to the largest MTU of the slave
 -	 * ports.
 -	 * Setting MTU just for the CPU port is sufficient to correctly set a
 -	 * value for every port.
 -	 */
 -	if (!dsa_is_cpu_port(ds, port))
 -		return 0;
 -
 -	/* To change the MAX_FRAME_SIZE the cpu ports must be off or
 -	 * the switch panics.
 -	 * Turn off both cpu ports before applying the new value to prevent
 -	 * this.
 -	 */
 -	if (priv->port_enabled_map & BIT(0))
 -		qca8k_port_set_status(priv, 0, 0);
 -
 -	if (priv->port_enabled_map & BIT(6))
 -		qca8k_port_set_status(priv, 6, 0);
 -
 -	/* Include L2 header / FCS length */
 -	ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu + ETH_HLEN + ETH_FCS_LEN);
 -
 -	if (priv->port_enabled_map & BIT(0))
 -		qca8k_port_set_status(priv, 0, 1);
 -
 -	if (priv->port_enabled_map & BIT(6))
 -		qca8k_port_set_status(priv, 6, 1);
 -
 -	return ret;
 -}
 -
 -static int
 -qca8k_port_max_mtu(struct dsa_switch *ds, int port)
 -{
 -	return QCA8K_MAX_MTU;
 -}
 -
 -static int
 qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
 		      u16 port_mask, u16 vid)
 {
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -367,3 +367,88 @@ void qca8k_port_bridge_leave(struct dsa_
 	qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 		  QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
 }
 +
 +int qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	unsigned int secs = msecs / 1000;
 +	u32 val;
 +
 +	/* AGE_TIME reg is set in 7s step */
 +	val = secs / 7;
 +
 +	/* Handle case with 0 as val to NOT disable
 +	 * learning
 +	 */
 +	if (!val)
 +		val = 1;
 +
 +	return regmap_update_bits(priv->regmap, QCA8K_REG_ATU_CTRL,
 +				  QCA8K_ATU_AGE_TIME_MASK,
 +				  QCA8K_ATU_AGE_TIME(val));
 +}
 +
 +int qca8k_port_enable(struct dsa_switch *ds, int port,
 +		      struct phy_device *phy)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +
 +	qca8k_port_set_status(priv, port, 1);
 +	priv->port_enabled_map |= BIT(port);
 +
 +	if (dsa_is_user_port(ds, port))
 +		phy_support_asym_pause(phy);
 +
 +	return 0;
 +}
 +
 +void qca8k_port_disable(struct dsa_switch *ds, int port)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +
 +	qca8k_port_set_status(priv, port, 0);
 +	priv->port_enabled_map &= ~BIT(port);
 +}
 +
 +int qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int ret;
 +
 +	/* We have only have a general MTU setting.
 +	 * DSA always set the CPU port's MTU to the largest MTU of the slave
 +	 * ports.
 +	 * Setting MTU just for the CPU port is sufficient to correctly set a
 +	 * value for every port.
 +	 */
 +	if (!dsa_is_cpu_port(ds, port))
 +		return 0;
 +
 +	/* To change the MAX_FRAME_SIZE the cpu ports must be off or
 +	 * the switch panics.
 +	 * Turn off both cpu ports before applying the new value to prevent
 +	 * this.
 +	 */
 +	if (priv->port_enabled_map & BIT(0))
 +		qca8k_port_set_status(priv, 0, 0);
 +
 +	if (priv->port_enabled_map & BIT(6))
 +		qca8k_port_set_status(priv, 6, 0);
 +
 +	/* Include L2 header / FCS length */
 +	ret = qca8k_write(priv, QCA8K_MAX_FRAME_SIZE, new_mtu +
 +			  ETH_HLEN + ETH_FCS_LEN);
 +
 +	if (priv->port_enabled_map & BIT(0))
 +		qca8k_port_set_status(priv, 0, 1);
 +
 +	if (priv->port_enabled_map & BIT(6))
 +		qca8k_port_set_status(priv, 6, 1);
 +
 +	return ret;
 +}
 +
 +int qca8k_port_max_mtu(struct dsa_switch *ds, int port)
 +{
 +	return QCA8K_MAX_MTU;
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -453,4 +453,16 @@ int qca8k_port_bridge_join(struct dsa_sw
 void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 			     struct net_device *br);
 +/* Common port enable/disable function */
 +int qca8k_port_enable(struct dsa_switch *ds, int port,
 +		      struct phy_device *phy);
 +void qca8k_port_disable(struct dsa_switch *ds, int port);
 +
 +/* Common MTU function */
 +int qca8k_port_change_mtu(struct dsa_switch *ds, int port, int new_mtu);
 +int qca8k_port_max_mtu(struct dsa_switch *ds, int port);
 +
 +/* Common fast age function */
 +int qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-10-net-dsa-qca8k-move-port-FDB-MDB-function-to-common-c.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-10-net-dsa-qca8k-move-port-FDB-MDB-function-to-common-c.patch
@ -0,0 +1,704 @@
 From 2e5bd96eea86a246b4de3bf756f7a11b43e6187d Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:19 +0200
 Subject: [PATCH 10/14] net: dsa: qca8k: move port FDB/MDB function to common
 code
 The same port FDB/MDB function are used by drivers based on qca8k family
 switch. Move them to common code to make them accessible also by other
 drivers.
 Also drop bulk read/write functions and make them static
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 306 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 297 +++++++++++++++++++++++++++-
 drivers/net/dsa/qca/qca8k.h        |  25 ++-
 3 files changed, 317 insertions(+), 311 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -442,217 +442,6 @@ static struct regmap_config qca8k_regmap
 };
 static int
 -qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
 -{
 -	u32 reg[3];
 -	int ret;
 -
 -	/* load the ARL table into an array */
 -	ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
 -	if (ret)
 -		return ret;
 -
 -	/* vid - 83:72 */
 -	fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
 -	/* aging - 67:64 */
 -	fdb->aging = FIELD_GET(QCA8K_ATU_STATUS_MASK, reg[2]);
 -	/* portmask - 54:48 */
 -	fdb->port_mask = FIELD_GET(QCA8K_ATU_PORT_MASK, reg[1]);
 -	/* mac - 47:0 */
 -	fdb->mac[0] = FIELD_GET(QCA8K_ATU_ADDR0_MASK, reg[1]);
 -	fdb->mac[1] = FIELD_GET(QCA8K_ATU_ADDR1_MASK, reg[1]);
 -	fdb->mac[2] = FIELD_GET(QCA8K_ATU_ADDR2_MASK, reg[0]);
 -	fdb->mac[3] = FIELD_GET(QCA8K_ATU_ADDR3_MASK, reg[0]);
 -	fdb->mac[4] = FIELD_GET(QCA8K_ATU_ADDR4_MASK, reg[0]);
 -	fdb->mac[5] = FIELD_GET(QCA8K_ATU_ADDR5_MASK, reg[0]);
 -
 -	return 0;
 -}
 -
 -static void
 -qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask, const u8 *mac,
 -		u8 aging)
 -{
 -	u32 reg[3] = { 0 };
 -
 -	/* vid - 83:72 */
 -	reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
 -	/* aging - 67:64 */
 -	reg[2] |= FIELD_PREP(QCA8K_ATU_STATUS_MASK, aging);
 -	/* portmask - 54:48 */
 -	reg[1] = FIELD_PREP(QCA8K_ATU_PORT_MASK, port_mask);
 -	/* mac - 47:0 */
 -	reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR0_MASK, mac[0]);
 -	reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR1_MASK, mac[1]);
 -	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR2_MASK, mac[2]);
 -	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR3_MASK, mac[3]);
 -	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR4_MASK, mac[4]);
 -	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
 -
 -	/* load the array into the ARL table */
 -	qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
 -}
 -
 -static int
 -qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd, int port)
 -{
 -	u32 reg;
 -	int ret;
 -
 -	/* Set the command and FDB index */
 -	reg = QCA8K_ATU_FUNC_BUSY;
 -	reg |= cmd;
 -	if (port >= 0) {
 -		reg |= QCA8K_ATU_FUNC_PORT_EN;
 -		reg |= FIELD_PREP(QCA8K_ATU_FUNC_PORT_MASK, port);
 -	}
 -
 -	/* Write the function register triggering the table access */
 -	ret = qca8k_write(priv, QCA8K_REG_ATU_FUNC, reg);
 -	if (ret)
 -		return ret;
 -
 -	/* wait for completion */
 -	ret = qca8k_busy_wait(priv, QCA8K_REG_ATU_FUNC, QCA8K_ATU_FUNC_BUSY);
 -	if (ret)
 -		return ret;
 -
 -	/* Check for table full violation when adding an entry */
 -	if (cmd == QCA8K_FDB_LOAD) {
 -		ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, &reg);
 -		if (ret < 0)
 -			return ret;
 -		if (reg & QCA8K_ATU_FUNC_FULL)
 -			return -1;
 -	}
 -
 -	return 0;
 -}
 -
 -static int
 -qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb, int port)
 -{
 -	int ret;
 -
 -	qca8k_fdb_write(priv, fdb->vid, fdb->port_mask, fdb->mac, fdb->aging);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_NEXT, port);
 -	if (ret < 0)
 -		return ret;
 -
 -	return qca8k_fdb_read(priv, fdb);
 -}
 -
 -static int
 -qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac, u16 port_mask,
 -	      u16 vid, u8 aging)
 -{
 -	int ret;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	qca8k_fdb_write(priv, vid, port_mask, mac, aging);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
 -	mutex_unlock(&priv->reg_mutex);
 -
 -	return ret;
 -}
 -
 -static int
 -qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac, u16 port_mask, u16 vid)
 -{
 -	int ret;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	qca8k_fdb_write(priv, vid, port_mask, mac, 0);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
 -	mutex_unlock(&priv->reg_mutex);
 -
 -	return ret;
 -}
 -
 -static void
 -qca8k_fdb_flush(struct qca8k_priv *priv)
 -{
 -	mutex_lock(&priv->reg_mutex);
 -	qca8k_fdb_access(priv, QCA8K_FDB_FLUSH, -1);
 -	mutex_unlock(&priv->reg_mutex);
 -}
 -
 -static int
 -qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask,
 -			    const u8 *mac, u16 vid)
 -{
 -	struct qca8k_fdb fdb = { 0 };
 -	int ret;
 -
 -	mutex_lock(&priv->reg_mutex);
 -
 -	qca8k_fdb_write(priv, vid, 0, mac, 0);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
 -	if (ret < 0)
 -		goto exit;
 -
 -	ret = qca8k_fdb_read(priv, &fdb);
 -	if (ret < 0)
 -		goto exit;
 -
 -	/* Rule exist. Delete first */
 -	if (!fdb.aging) {
 -		ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
 -		if (ret)
 -			goto exit;
 -	}
 -
 -	/* Add port to fdb portmask */
 -	fdb.port_mask |= port_mask;
 -
 -	qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
 -
 -exit:
 -	mutex_unlock(&priv->reg_mutex);
 -	return ret;
 -}
 -
 -static int
 -qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
 -			 const u8 *mac, u16 vid)
 -{
 -	struct qca8k_fdb fdb = { 0 };
 -	int ret;
 -
 -	mutex_lock(&priv->reg_mutex);
 -
 -	qca8k_fdb_write(priv, vid, 0, mac, 0);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
 -	if (ret < 0)
 -		goto exit;
 -
 -	/* Rule doesn't exist. Why delete? */
 -	if (!fdb.aging) {
 -		ret = -EINVAL;
 -		goto exit;
 -	}
 -
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
 -	if (ret)
 -		goto exit;
 -
 -	/* Only port in the rule is this port. Don't re insert */
 -	if (fdb.port_mask == port_mask)
 -		goto exit;
 -
 -	/* Remove port from port mask */
 -	fdb.port_mask &= ~port_mask;
 -
 -	qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
 -	ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
 -
 -exit:
 -	mutex_unlock(&priv->reg_mutex);
 -	return ret;
 -}
 -
 -static int
 qca8k_vlan_access(struct qca8k_priv *priv, enum qca8k_vlan_cmd cmd, u16 vid)
 {
 	u32 reg;
@@ -2048,97 +1837,6 @@ exit:
 	return ret;
 }
 -static void
 -qca8k_port_fast_age(struct dsa_switch *ds, int port)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
 -	mutex_unlock(&priv->reg_mutex);
 -}
 -
 -static int
 -qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
 -		      u16 port_mask, u16 vid)
 -{
 -	/* Set the vid to the port vlan id if no vid is set */
 -	if (!vid)
 -		vid = QCA8K_PORT_VID_DEF;
 -
 -	return qca8k_fdb_add(priv, addr, port_mask, vid,
 -			     QCA8K_ATU_STATUS_STATIC);
 -}
 -
 -static int
 -qca8k_port_fdb_add(struct dsa_switch *ds, int port,
 -		   const unsigned char *addr, u16 vid)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	u16 port_mask = BIT(port);
 -
 -	return qca8k_port_fdb_insert(priv, addr, port_mask, vid);
 -}
 -
 -static int
 -qca8k_port_fdb_del(struct dsa_switch *ds, int port,
 -		   const unsigned char *addr, u16 vid)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	u16 port_mask = BIT(port);
 -
 -	if (!vid)
 -		vid = QCA8K_PORT_VID_DEF;
 -
 -	return qca8k_fdb_del(priv, addr, port_mask, vid);
 -}
 -
 -static int
 -qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
 -		    dsa_fdb_dump_cb_t *cb, void *data)
 -{
 -	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 -	struct qca8k_fdb _fdb = { 0 };
 -	int cnt = QCA8K_NUM_FDB_RECORDS;
 -	bool is_static;
 -	int ret = 0;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	while (cnt-- && !qca8k_fdb_next(priv, &_fdb, port)) {
 -		if (!_fdb.aging)
 -			break;
 -		is_static = (_fdb.aging == QCA8K_ATU_STATUS_STATIC);
 -		ret = cb(_fdb.mac, _fdb.vid, is_static, data);
 -		if (ret)
 -			break;
 -	}
 -	mutex_unlock(&priv->reg_mutex);
 -
 -	return 0;
 -}
 -
 -static int
 -qca8k_port_mdb_add(struct dsa_switch *ds, int port,
 -		   const struct switchdev_obj_port_mdb *mdb)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	const u8 *addr = mdb->addr;
 -	u16 vid = mdb->vid;
 -
 -	return qca8k_fdb_search_and_insert(priv, BIT(port), addr, vid);
 -}
 -
 -static int
 -qca8k_port_mdb_del(struct dsa_switch *ds, int port,
 -		   const struct switchdev_obj_port_mdb *mdb)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	const u8 *addr = mdb->addr;
 -	u16 vid = mdb->vid;
 -
 -	return qca8k_fdb_search_and_del(priv, BIT(port), addr, vid);
 -}
 -
 static int
 qca8k_port_mirror_add(struct dsa_switch *ds, int port,
 		      struct dsa_mall_mirror_tc_entry *mirror,
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -103,7 +103,7 @@ const struct regmap_access_table qca8k_r
 };
 /* TODO: remove these extra ops when we can support regmap bulk read/write */
 -int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 +static int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 {
 	int i, count = len / sizeof(u32), ret;
@@ -121,7 +121,7 @@ int qca8k_bulk_read(struct qca8k_priv *p
 }
 /* TODO: remove these extra ops when we can support regmap bulk read/write */
 -int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 +static int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 {
 	int i, count = len / sizeof(u32), ret;
 	u32 tmp;
@@ -149,6 +149,211 @@ int qca8k_busy_wait(struct qca8k_priv *p
 				       QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
 }
 +static int qca8k_fdb_read(struct qca8k_priv *priv, struct qca8k_fdb *fdb)
 +{
 +	u32 reg[3];
 +	int ret;
 +
 +	/* load the ARL table into an array */
 +	ret = qca8k_bulk_read(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
 +	if (ret)
 +		return ret;
 +
 +	/* vid - 83:72 */
 +	fdb->vid = FIELD_GET(QCA8K_ATU_VID_MASK, reg[2]);
 +	/* aging - 67:64 */
 +	fdb->aging = FIELD_GET(QCA8K_ATU_STATUS_MASK, reg[2]);
 +	/* portmask - 54:48 */
 +	fdb->port_mask = FIELD_GET(QCA8K_ATU_PORT_MASK, reg[1]);
 +	/* mac - 47:0 */
 +	fdb->mac[0] = FIELD_GET(QCA8K_ATU_ADDR0_MASK, reg[1]);
 +	fdb->mac[1] = FIELD_GET(QCA8K_ATU_ADDR1_MASK, reg[1]);
 +	fdb->mac[2] = FIELD_GET(QCA8K_ATU_ADDR2_MASK, reg[0]);
 +	fdb->mac[3] = FIELD_GET(QCA8K_ATU_ADDR3_MASK, reg[0]);
 +	fdb->mac[4] = FIELD_GET(QCA8K_ATU_ADDR4_MASK, reg[0]);
 +	fdb->mac[5] = FIELD_GET(QCA8K_ATU_ADDR5_MASK, reg[0]);
 +
 +	return 0;
 +}
 +
 +static void qca8k_fdb_write(struct qca8k_priv *priv, u16 vid, u8 port_mask,
 +			    const u8 *mac, u8 aging)
 +{
 +	u32 reg[3] = { 0 };
 +
 +	/* vid - 83:72 */
 +	reg[2] = FIELD_PREP(QCA8K_ATU_VID_MASK, vid);
 +	/* aging - 67:64 */
 +	reg[2] |= FIELD_PREP(QCA8K_ATU_STATUS_MASK, aging);
 +	/* portmask - 54:48 */
 +	reg[1] = FIELD_PREP(QCA8K_ATU_PORT_MASK, port_mask);
 +	/* mac - 47:0 */
 +	reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR0_MASK, mac[0]);
 +	reg[1] |= FIELD_PREP(QCA8K_ATU_ADDR1_MASK, mac[1]);
 +	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR2_MASK, mac[2]);
 +	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR3_MASK, mac[3]);
 +	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR4_MASK, mac[4]);
 +	reg[0] |= FIELD_PREP(QCA8K_ATU_ADDR5_MASK, mac[5]);
 +
 +	/* load the array into the ARL table */
 +	qca8k_bulk_write(priv, QCA8K_REG_ATU_DATA0, reg, sizeof(reg));
 +}
 +
 +static int qca8k_fdb_access(struct qca8k_priv *priv, enum qca8k_fdb_cmd cmd,
 +			    int port)
 +{
 +	u32 reg;
 +	int ret;
 +
 +	/* Set the command and FDB index */
 +	reg = QCA8K_ATU_FUNC_BUSY;
 +	reg |= cmd;
 +	if (port >= 0) {
 +		reg |= QCA8K_ATU_FUNC_PORT_EN;
 +		reg |= FIELD_PREP(QCA8K_ATU_FUNC_PORT_MASK, port);
 +	}
 +
 +	/* Write the function register triggering the table access */
 +	ret = qca8k_write(priv, QCA8K_REG_ATU_FUNC, reg);
 +	if (ret)
 +		return ret;
 +
 +	/* wait for completion */
 +	ret = qca8k_busy_wait(priv, QCA8K_REG_ATU_FUNC, QCA8K_ATU_FUNC_BUSY);
 +	if (ret)
 +		return ret;
 +
 +	/* Check for table full violation when adding an entry */
 +	if (cmd == QCA8K_FDB_LOAD) {
 +		ret = qca8k_read(priv, QCA8K_REG_ATU_FUNC, &reg);
 +		if (ret < 0)
 +			return ret;
 +		if (reg & QCA8K_ATU_FUNC_FULL)
 +			return -1;
 +	}
 +
 +	return 0;
 +}
 +
 +static int qca8k_fdb_next(struct qca8k_priv *priv, struct qca8k_fdb *fdb,
 +			  int port)
 +{
 +	int ret;
 +
 +	qca8k_fdb_write(priv, fdb->vid, fdb->port_mask, fdb->mac, fdb->aging);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_NEXT, port);
 +	if (ret < 0)
 +		return ret;
 +
 +	return qca8k_fdb_read(priv, fdb);
 +}
 +
 +static int qca8k_fdb_add(struct qca8k_priv *priv, const u8 *mac,
 +			 u16 port_mask, u16 vid, u8 aging)
 +{
 +	int ret;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	qca8k_fdb_write(priv, vid, port_mask, mac, aging);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
 +	mutex_unlock(&priv->reg_mutex);
 +
 +	return ret;
 +}
 +
 +static int qca8k_fdb_del(struct qca8k_priv *priv, const u8 *mac,
 +			 u16 port_mask, u16 vid)
 +{
 +	int ret;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	qca8k_fdb_write(priv, vid, port_mask, mac, 0);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
 +	mutex_unlock(&priv->reg_mutex);
 +
 +	return ret;
 +}
 +
 +void qca8k_fdb_flush(struct qca8k_priv *priv)
 +{
 +	mutex_lock(&priv->reg_mutex);
 +	qca8k_fdb_access(priv, QCA8K_FDB_FLUSH, -1);
 +	mutex_unlock(&priv->reg_mutex);
 +}
 +
 +static int qca8k_fdb_search_and_insert(struct qca8k_priv *priv, u8 port_mask,
 +				       const u8 *mac, u16 vid)
 +{
 +	struct qca8k_fdb fdb = { 0 };
 +	int ret;
 +
 +	mutex_lock(&priv->reg_mutex);
 +
 +	qca8k_fdb_write(priv, vid, 0, mac, 0);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
 +	if (ret < 0)
 +		goto exit;
 +
 +	ret = qca8k_fdb_read(priv, &fdb);
 +	if (ret < 0)
 +		goto exit;
 +
 +	/* Rule exist. Delete first */
 +	if (!fdb.aging) {
 +		ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
 +		if (ret)
 +			goto exit;
 +	}
 +
 +	/* Add port to fdb portmask */
 +	fdb.port_mask |= port_mask;
 +
 +	qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
 +
 +exit:
 +	mutex_unlock(&priv->reg_mutex);
 +	return ret;
 +}
 +
 +static int qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
 +				    const u8 *mac, u16 vid)
 +{
 +	struct qca8k_fdb fdb = { 0 };
 +	int ret;
 +
 +	mutex_lock(&priv->reg_mutex);
 +
 +	qca8k_fdb_write(priv, vid, 0, mac, 0);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_SEARCH, -1);
 +	if (ret < 0)
 +		goto exit;
 +
 +	/* Rule doesn't exist. Why delete? */
 +	if (!fdb.aging) {
 +		ret = -EINVAL;
 +		goto exit;
 +	}
 +
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_PURGE, -1);
 +	if (ret)
 +		goto exit;
 +
 +	/* Only port in the rule is this port. Don't re insert */
 +	if (fdb.port_mask == port_mask)
 +		goto exit;
 +
 +	/* Remove port from port mask */
 +	fdb.port_mask &= ~port_mask;
 +
 +	qca8k_fdb_write(priv, vid, fdb.port_mask, mac, fdb.aging);
 +	ret = qca8k_fdb_access(priv, QCA8K_FDB_LOAD, -1);
 +
 +exit:
 +	mutex_unlock(&priv->reg_mutex);
 +	return ret;
 +}
 +
 int qca8k_mib_init(struct qca8k_priv *priv)
 {
 	int ret;
@@ -368,6 +573,15 @@ void qca8k_port_bridge_leave(struct dsa_
 		  QCA8K_PORT_LOOKUP_MEMBER, BIT(cpu_port));
 }
 +void qca8k_port_fast_age(struct dsa_switch *ds, int port)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	qca8k_fdb_access(priv, QCA8K_FDB_FLUSH_PORT, port);
 +	mutex_unlock(&priv->reg_mutex);
 +}
 +
 int qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
 {
 	struct qca8k_priv *priv = ds->priv;
@@ -452,3 +666,78 @@ int qca8k_port_max_mtu(struct dsa_switch
 {
 	return QCA8K_MAX_MTU;
 }
 +
 +int qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
 +			  u16 port_mask, u16 vid)
 +{
 +	/* Set the vid to the port vlan id if no vid is set */
 +	if (!vid)
 +		vid = QCA8K_PORT_VID_DEF;
 +
 +	return qca8k_fdb_add(priv, addr, port_mask, vid,
 +			     QCA8K_ATU_STATUS_STATIC);
 +}
 +
 +int qca8k_port_fdb_add(struct dsa_switch *ds, int port,
 +		       const unsigned char *addr, u16 vid)
 +{
 +	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 +	u16 port_mask = BIT(port);
 +
 +	return qca8k_port_fdb_insert(priv, addr, port_mask, vid);
 +}
 +
 +int qca8k_port_fdb_del(struct dsa_switch *ds, int port,
 +		       const unsigned char *addr, u16 vid)
 +{
 +	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 +	u16 port_mask = BIT(port);
 +
 +	if (!vid)
 +		vid = QCA8K_PORT_VID_DEF;
 +
 +	return qca8k_fdb_del(priv, addr, port_mask, vid);
 +}
 +
 +int qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
 +			dsa_fdb_dump_cb_t *cb, void *data)
 +{
 +	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
 +	struct qca8k_fdb _fdb = { 0 };
 +	int cnt = QCA8K_NUM_FDB_RECORDS;
 +	bool is_static;
 +	int ret = 0;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	while (cnt-- && !qca8k_fdb_next(priv, &_fdb, port)) {
 +		if (!_fdb.aging)
 +			break;
 +		is_static = (_fdb.aging == QCA8K_ATU_STATUS_STATIC);
 +		ret = cb(_fdb.mac, _fdb.vid, is_static, data);
 +		if (ret)
 +			break;
 +	}
 +	mutex_unlock(&priv->reg_mutex);
 +
 +	return 0;
 +}
 +
 +int qca8k_port_mdb_add(struct dsa_switch *ds, int port,
 +		       const struct switchdev_obj_port_mdb *mdb)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	const u8 *addr = mdb->addr;
 +	u16 vid = mdb->vid;
 +
 +	return qca8k_fdb_search_and_insert(priv, BIT(port), addr, vid);
 +}
 +
 +int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
 +		       const struct switchdev_obj_port_mdb *mdb)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	const u8 *addr = mdb->addr;
 +	u16 vid = mdb->vid;
 +
 +	return qca8k_fdb_search_and_del(priv, BIT(port), addr, vid);
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -430,11 +430,9 @@ int qca8k_read(struct qca8k_priv *priv,
 int qca8k_write(struct qca8k_priv *priv, u32 reg, u32 val);
 int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val);
 -int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 -int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len);
 -
 /* Common ops function */
 int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask);
 +void qca8k_fdb_flush(struct qca8k_priv *priv);
 /* Common ethtool stats function */
 void qca8k_get_strings(struct dsa_switch *ds, int port, u32 stringset, uint8_t *data);
@@ -463,6 +461,23 @@ int qca8k_port_change_mtu(struct dsa_swi
 int qca8k_port_max_mtu(struct dsa_switch *ds, int port);
 /* Common fast age function */
 +void qca8k_port_fast_age(struct dsa_switch *ds, int port);
 int qca8k_set_ageing_time(struct dsa_switch *ds, unsigned int msecs);
 +/* Common FDB function */
 +int qca8k_port_fdb_insert(struct qca8k_priv *priv, const u8 *addr,
 +			  u16 port_mask, u16 vid);
 +int qca8k_port_fdb_add(struct dsa_switch *ds, int port,
 +		       const unsigned char *addr, u16 vid);
 +int qca8k_port_fdb_del(struct dsa_switch *ds, int port,
 +		       const unsigned char *addr, u16 vid);
 +int qca8k_port_fdb_dump(struct dsa_switch *ds, int port,
 +			dsa_fdb_dump_cb_t *cb, void *data);
 +
 +/* Common MDB function */
 +int qca8k_port_mdb_add(struct dsa_switch *ds, int port,
 +		       const struct switchdev_obj_port_mdb *mdb);
 +int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
 +		       const struct switchdev_obj_port_mdb *mdb);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-11-net-dsa-qca8k-move-port-mirror-functions-to-common-c.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-11-net-dsa-qca8k-move-port-mirror-functions-to-common-c.patch
@ -0,0 +1,232 @@
 From 742d37a84d3f7bb60d9b2d9ada9ad4e599f65ebf Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:20 +0200
 Subject: [PATCH 11/14] net: dsa: qca8k: move port mirror functions to common
 code
 The same port mirror functions are used by drivers based on qca8k family
 switch. Move them to common code to make them accessible also by other
 drivers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 93 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 91 +++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  7 +++
 3 files changed, 98 insertions(+), 93 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1838,99 +1838,6 @@ exit:
 }
 static int
 -qca8k_port_mirror_add(struct dsa_switch *ds, int port,
 -		      struct dsa_mall_mirror_tc_entry *mirror,
 -		      bool ingress)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	int monitor_port, ret;
 -	u32 reg, val;
 -
 -	/* Check for existent entry */
 -	if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
 -		return -EEXIST;
 -
 -	ret = regmap_read(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, &val);
 -	if (ret)
 -		return ret;
 -
 -	/* QCA83xx can have only one port set to mirror mode.
 -	 * Check that the correct port is requested and return error otherwise.
 -	 * When no mirror port is set, the values is set to 0xF
 -	 */
 -	monitor_port = FIELD_GET(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
 -	if (monitor_port != 0xF && monitor_port != mirror->to_local_port)
 -		return -EEXIST;
 -
 -	/* Set the monitor port */
 -	val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM,
 -			 mirror->to_local_port);
 -	ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
 -				 QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
 -	if (ret)
 -		return ret;
 -
 -	if (ingress) {
 -		reg = QCA8K_PORT_LOOKUP_CTRL(port);
 -		val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
 -	} else {
 -		reg = QCA8K_REG_PORT_HOL_CTRL1(port);
 -		val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
 -	}
 -
 -	ret = regmap_update_bits(priv->regmap, reg, val, val);
 -	if (ret)
 -		return ret;
 -
 -	/* Track mirror port for tx and rx to decide when the
 -	 * mirror port has to be disabled.
 -	 */
 -	if (ingress)
 -		priv->mirror_rx |= BIT(port);
 -	else
 -		priv->mirror_tx |= BIT(port);
 -
 -	return 0;
 -}
 -
 -static void
 -qca8k_port_mirror_del(struct dsa_switch *ds, int port,
 -		      struct dsa_mall_mirror_tc_entry *mirror)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	u32 reg, val;
 -	int ret;
 -
 -	if (mirror->ingress) {
 -		reg = QCA8K_PORT_LOOKUP_CTRL(port);
 -		val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
 -	} else {
 -		reg = QCA8K_REG_PORT_HOL_CTRL1(port);
 -		val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
 -	}
 -
 -	ret = regmap_clear_bits(priv->regmap, reg, val);
 -	if (ret)
 -		goto err;
 -
 -	if (mirror->ingress)
 -		priv->mirror_rx &= ~BIT(port);
 -	else
 -		priv->mirror_tx &= ~BIT(port);
 -
 -	/* No port set to send packet to mirror port. Disable mirror port */
 -	if (!priv->mirror_rx && !priv->mirror_tx) {
 -		val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, 0xF);
 -		ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
 -					 QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
 -		if (ret)
 -			goto err;
 -	}
 -err:
 -	dev_err(priv->dev, "Failed to del mirror port from %d", port);
 -}
 -
 -static int
 qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
 			  struct netlink_ext_ack *extack)
 {
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -741,3 +741,94 @@ int qca8k_port_mdb_del(struct dsa_switch
 	return qca8k_fdb_search_and_del(priv, BIT(port), addr, vid);
 }
 +
 +int qca8k_port_mirror_add(struct dsa_switch *ds, int port,
 +			  struct dsa_mall_mirror_tc_entry *mirror,
 +			  bool ingress)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int monitor_port, ret;
 +	u32 reg, val;
 +
 +	/* Check for existent entry */
 +	if ((ingress ? priv->mirror_rx : priv->mirror_tx) & BIT(port))
 +		return -EEXIST;
 +
 +	ret = regmap_read(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0, &val);
 +	if (ret)
 +		return ret;
 +
 +	/* QCA83xx can have only one port set to mirror mode.
 +	 * Check that the correct port is requested and return error otherwise.
 +	 * When no mirror port is set, the values is set to 0xF
 +	 */
 +	monitor_port = FIELD_GET(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
 +	if (monitor_port != 0xF && monitor_port != mirror->to_local_port)
 +		return -EEXIST;
 +
 +	/* Set the monitor port */
 +	val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM,
 +			 mirror->to_local_port);
 +	ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
 +				 QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
 +	if (ret)
 +		return ret;
 +
 +	if (ingress) {
 +		reg = QCA8K_PORT_LOOKUP_CTRL(port);
 +		val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
 +	} else {
 +		reg = QCA8K_REG_PORT_HOL_CTRL1(port);
 +		val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
 +	}
 +
 +	ret = regmap_update_bits(priv->regmap, reg, val, val);
 +	if (ret)
 +		return ret;
 +
 +	/* Track mirror port for tx and rx to decide when the
 +	 * mirror port has to be disabled.
 +	 */
 +	if (ingress)
 +		priv->mirror_rx |= BIT(port);
 +	else
 +		priv->mirror_tx |= BIT(port);
 +
 +	return 0;
 +}
 +
 +void qca8k_port_mirror_del(struct dsa_switch *ds, int port,
 +			   struct dsa_mall_mirror_tc_entry *mirror)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	u32 reg, val;
 +	int ret;
 +
 +	if (mirror->ingress) {
 +		reg = QCA8K_PORT_LOOKUP_CTRL(port);
 +		val = QCA8K_PORT_LOOKUP_ING_MIRROR_EN;
 +	} else {
 +		reg = QCA8K_REG_PORT_HOL_CTRL1(port);
 +		val = QCA8K_PORT_HOL_CTRL1_EG_MIRROR_EN;
 +	}
 +
 +	ret = regmap_clear_bits(priv->regmap, reg, val);
 +	if (ret)
 +		goto err;
 +
 +	if (mirror->ingress)
 +		priv->mirror_rx &= ~BIT(port);
 +	else
 +		priv->mirror_tx &= ~BIT(port);
 +
 +	/* No port set to send packet to mirror port. Disable mirror port */
 +	if (!priv->mirror_rx && !priv->mirror_tx) {
 +		val = FIELD_PREP(QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, 0xF);
 +		ret = regmap_update_bits(priv->regmap, QCA8K_REG_GLOBAL_FW_CTRL0,
 +					 QCA8K_GLOBAL_FW_CTRL0_MIRROR_PORT_NUM, val);
 +		if (ret)
 +			goto err;
 +	}
 +err:
 +	dev_err(priv->dev, "Failed to del mirror port from %d", port);
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -480,4 +480,11 @@ int qca8k_port_mdb_add(struct dsa_switch
 int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
 		       const struct switchdev_obj_port_mdb *mdb);
 +/* Common port mirror function */
 +int qca8k_port_mirror_add(struct dsa_switch *ds, int port,
 +			  struct dsa_mall_mirror_tc_entry *mirror,
 +			  bool ingress);
 +void qca8k_port_mirror_del(struct dsa_switch *ds, int port,
 +			   struct dsa_mall_mirror_tc_entry *mirror);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-12-net-dsa-qca8k-move-port-VLAN-functions-to-common-cod.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-12-net-dsa-qca8k-move-port-VLAN-functions-to-common-cod.patch
@ -0,0 +1,448 @@
 From c5290f636624b98e76a82bd63ffec0a8a9daa620 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:21 +0200
 Subject: [PATCH 12/14] net: dsa: qca8k: move port VLAN functions to common
 code
 The same port VLAN functions are used by drivers based on qca8k family
 switch. Move them to common code to make them accessible also by other
 drivers.
 Also drop exposing busy_wait and make it static.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 182 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 179 +++++++++++++++++++++++++++-
 drivers/net/dsa/qca/qca8k.h        |  10 +-
 3 files changed, 187 insertions(+), 184 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -15,7 +15,6 @@
 #include <linux/of_net.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 -#include <linux/if_bridge.h>
 #include <linux/mdio.h>
 #include <linux/phylink.h>
 #include <linux/gpio/consumer.h>
@@ -442,122 +441,6 @@ static struct regmap_config qca8k_regmap
 };
 static int
 -qca8k_vlan_access(struct qca8k_priv *priv, enum qca8k_vlan_cmd cmd, u16 vid)
 -{
 -	u32 reg;
 -	int ret;
 -
 -	/* Set the command and VLAN index */
 -	reg = QCA8K_VTU_FUNC1_BUSY;
 -	reg |= cmd;
 -	reg |= FIELD_PREP(QCA8K_VTU_FUNC1_VID_MASK, vid);
 -
 -	/* Write the function register triggering the table access */
 -	ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg);
 -	if (ret)
 -		return ret;
 -
 -	/* wait for completion */
 -	ret = qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY);
 -	if (ret)
 -		return ret;
 -
 -	/* Check for table full violation when adding an entry */
 -	if (cmd == QCA8K_VLAN_LOAD) {
 -		ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, &reg);
 -		if (ret < 0)
 -			return ret;
 -		if (reg & QCA8K_VTU_FUNC1_FULL)
 -			return -ENOMEM;
 -	}
 -
 -	return 0;
 -}
 -
 -static int
 -qca8k_vlan_add(struct qca8k_priv *priv, u8 port, u16 vid, bool untagged)
 -{
 -	u32 reg;
 -	int ret;
 -
 -	/*
 -	   We do the right thing with VLAN 0 and treat it as untagged while
 -	   preserving the tag on egress.
 -	 */
 -	if (vid == 0)
 -		return 0;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
 -	if (ret < 0)
 -		goto out;
 -
 -	ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
 -	if (ret < 0)
 -		goto out;
 -	reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
 -	reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
 -	if (untagged)
 -		reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_UNTAG(port);
 -	else
 -		reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_TAG(port);
 -
 -	ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
 -	if (ret)
 -		goto out;
 -	ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
 -
 -out:
 -	mutex_unlock(&priv->reg_mutex);
 -
 -	return ret;
 -}
 -
 -static int
 -qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
 -{
 -	u32 reg, mask;
 -	int ret, i;
 -	bool del;
 -
 -	mutex_lock(&priv->reg_mutex);
 -	ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
 -	if (ret < 0)
 -		goto out;
 -
 -	ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
 -	if (ret < 0)
 -		goto out;
 -	reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
 -	reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(port);
 -
 -	/* Check if we're the last member to be removed */
 -	del = true;
 -	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 -		mask = QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(i);
 -
 -		if ((reg & mask) != mask) {
 -			del = false;
 -			break;
 -		}
 -	}
 -
 -	if (del) {
 -		ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
 -	} else {
 -		ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
 -		if (ret)
 -			goto out;
 -		ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
 -	}
 -
 -out:
 -	mutex_unlock(&priv->reg_mutex);
 -
 -	return ret;
 -}
 -
 -static int
 qca8k_phy_eth_busy_wait(struct qca8k_mgmt_eth_data *mgmt_eth_data,
 			struct sk_buff *read_skb, u32 *val)
 {
@@ -1836,71 +1719,6 @@ exit:
 	return ret;
 }
 -
 -static int
 -qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
 -			  struct netlink_ext_ack *extack)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret;
 -
 -	if (vlan_filtering) {
 -		ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 -				QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
 -				QCA8K_PORT_LOOKUP_VLAN_MODE_SECURE);
 -	} else {
 -		ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 -				QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
 -				QCA8K_PORT_LOOKUP_VLAN_MODE_NONE);
 -	}
 -
 -	return ret;
 -}
 -
 -static int
 -qca8k_port_vlan_add(struct dsa_switch *ds, int port,
 -		    const struct switchdev_obj_port_vlan *vlan,
 -		    struct netlink_ext_ack *extack)
 -{
 -	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 -	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret;
 -
 -	ret = qca8k_vlan_add(priv, port, vlan->vid, untagged);
 -	if (ret) {
 -		dev_err(priv->dev, "Failed to add VLAN to port %d (%d)", port, ret);
 -		return ret;
 -	}
 -
 -	if (pvid) {
 -		ret = qca8k_rmw(priv, QCA8K_EGRESS_VLAN(port),
 -				QCA8K_EGREES_VLAN_PORT_MASK(port),
 -				QCA8K_EGREES_VLAN_PORT(port, vlan->vid));
 -		if (ret)
 -			return ret;
 -
 -		ret = qca8k_write(priv, QCA8K_REG_PORT_VLAN_CTRL0(port),
 -				  QCA8K_PORT_VLAN_CVID(vlan->vid) |
 -				  QCA8K_PORT_VLAN_SVID(vlan->vid));
 -	}
 -
 -	return ret;
 -}
 -
 -static int
 -qca8k_port_vlan_del(struct dsa_switch *ds, int port,
 -		    const struct switchdev_obj_port_vlan *vlan)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret;
 -
 -	ret = qca8k_vlan_del(priv, port, vlan->vid);
 -	if (ret)
 -		dev_err(priv->dev, "Failed to delete VLAN from port %d (%d)", port, ret);
 -
 -	return ret;
 -}
 static u32 qca8k_get_phy_flags(struct dsa_switch *ds, int port)
 {
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -141,7 +141,7 @@ static int qca8k_bulk_write(struct qca8k
 	return 0;
 }
 -int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
 +static int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
 {
 	u32 val;
@@ -354,6 +354,120 @@ exit:
 	return ret;
 }
 +static int qca8k_vlan_access(struct qca8k_priv *priv,
 +			     enum qca8k_vlan_cmd cmd, u16 vid)
 +{
 +	u32 reg;
 +	int ret;
 +
 +	/* Set the command and VLAN index */
 +	reg = QCA8K_VTU_FUNC1_BUSY;
 +	reg |= cmd;
 +	reg |= FIELD_PREP(QCA8K_VTU_FUNC1_VID_MASK, vid);
 +
 +	/* Write the function register triggering the table access */
 +	ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC1, reg);
 +	if (ret)
 +		return ret;
 +
 +	/* wait for completion */
 +	ret = qca8k_busy_wait(priv, QCA8K_REG_VTU_FUNC1, QCA8K_VTU_FUNC1_BUSY);
 +	if (ret)
 +		return ret;
 +
 +	/* Check for table full violation when adding an entry */
 +	if (cmd == QCA8K_VLAN_LOAD) {
 +		ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC1, &reg);
 +		if (ret < 0)
 +			return ret;
 +		if (reg & QCA8K_VTU_FUNC1_FULL)
 +			return -ENOMEM;
 +	}
 +
 +	return 0;
 +}
 +
 +static int qca8k_vlan_add(struct qca8k_priv *priv, u8 port, u16 vid,
 +			  bool untagged)
 +{
 +	u32 reg;
 +	int ret;
 +
 +	/* We do the right thing with VLAN 0 and treat it as untagged while
 +	 * preserving the tag on egress.
 +	 */
 +	if (vid == 0)
 +		return 0;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
 +	if (ret < 0)
 +		goto out;
 +
 +	ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
 +	if (ret < 0)
 +		goto out;
 +	reg |= QCA8K_VTU_FUNC0_VALID | QCA8K_VTU_FUNC0_IVL_EN;
 +	reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
 +	if (untagged)
 +		reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_UNTAG(port);
 +	else
 +		reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_TAG(port);
 +
 +	ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
 +	if (ret)
 +		goto out;
 +	ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
 +
 +out:
 +	mutex_unlock(&priv->reg_mutex);
 +
 +	return ret;
 +}
 +
 +static int qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
 +{
 +	u32 reg, mask;
 +	int ret, i;
 +	bool del;
 +
 +	mutex_lock(&priv->reg_mutex);
 +	ret = qca8k_vlan_access(priv, QCA8K_VLAN_READ, vid);
 +	if (ret < 0)
 +		goto out;
 +
 +	ret = qca8k_read(priv, QCA8K_REG_VTU_FUNC0, &reg);
 +	if (ret < 0)
 +		goto out;
 +	reg &= ~QCA8K_VTU_FUNC0_EG_MODE_PORT_MASK(port);
 +	reg |= QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(port);
 +
 +	/* Check if we're the last member to be removed */
 +	del = true;
 +	for (i = 0; i < QCA8K_NUM_PORTS; i++) {
 +		mask = QCA8K_VTU_FUNC0_EG_MODE_PORT_NOT(i);
 +
 +		if ((reg & mask) != mask) {
 +			del = false;
 +			break;
 +		}
 +	}
 +
 +	if (del) {
 +		ret = qca8k_vlan_access(priv, QCA8K_VLAN_PURGE, vid);
 +	} else {
 +		ret = qca8k_write(priv, QCA8K_REG_VTU_FUNC0, reg);
 +		if (ret)
 +			goto out;
 +		ret = qca8k_vlan_access(priv, QCA8K_VLAN_LOAD, vid);
 +	}
 +
 +out:
 +	mutex_unlock(&priv->reg_mutex);
 +
 +	return ret;
 +}
 +
 int qca8k_mib_init(struct qca8k_priv *priv)
 {
 	int ret;
@@ -832,3 +946,66 @@ void qca8k_port_mirror_del(struct dsa_sw
 err:
 	dev_err(priv->dev, "Failed to del mirror port from %d", port);
 }
 +
 +int qca8k_port_vlan_filtering(struct dsa_switch *ds, int port,
 +			      bool vlan_filtering,
 +			      struct netlink_ext_ack *extack)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int ret;
 +
 +	if (vlan_filtering) {
 +		ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 +				QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
 +				QCA8K_PORT_LOOKUP_VLAN_MODE_SECURE);
 +	} else {
 +		ret = qca8k_rmw(priv, QCA8K_PORT_LOOKUP_CTRL(port),
 +				QCA8K_PORT_LOOKUP_VLAN_MODE_MASK,
 +				QCA8K_PORT_LOOKUP_VLAN_MODE_NONE);
 +	}
 +
 +	return ret;
 +}
 +
 +int qca8k_port_vlan_add(struct dsa_switch *ds, int port,
 +			const struct switchdev_obj_port_vlan *vlan,
 +			struct netlink_ext_ack *extack)
 +{
 +	bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
 +	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
 +	struct qca8k_priv *priv = ds->priv;
 +	int ret;
 +
 +	ret = qca8k_vlan_add(priv, port, vlan->vid, untagged);
 +	if (ret) {
 +		dev_err(priv->dev, "Failed to add VLAN to port %d (%d)", port, ret);
 +		return ret;
 +	}
 +
 +	if (pvid) {
 +		ret = qca8k_rmw(priv, QCA8K_EGRESS_VLAN(port),
 +				QCA8K_EGREES_VLAN_PORT_MASK(port),
 +				QCA8K_EGREES_VLAN_PORT(port, vlan->vid));
 +		if (ret)
 +			return ret;
 +
 +		ret = qca8k_write(priv, QCA8K_REG_PORT_VLAN_CTRL0(port),
 +				  QCA8K_PORT_VLAN_CVID(vlan->vid) |
 +				  QCA8K_PORT_VLAN_SVID(vlan->vid));
 +	}
 +
 +	return ret;
 +}
 +
 +int qca8k_port_vlan_del(struct dsa_switch *ds, int port,
 +			const struct switchdev_obj_port_vlan *vlan)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int ret;
 +
 +	ret = qca8k_vlan_del(priv, port, vlan->vid);
 +	if (ret)
 +		dev_err(priv->dev, "Failed to delete VLAN from port %d (%d)", port, ret);
 +
 +	return ret;
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -431,7 +431,6 @@ int qca8k_write(struct qca8k_priv *priv,
 int qca8k_rmw(struct qca8k_priv *priv, u32 reg, u32 mask, u32 write_val);
 /* Common ops function */
 -int qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask);
 void qca8k_fdb_flush(struct qca8k_priv *priv);
 /* Common ethtool stats function */
@@ -487,4 +486,13 @@ int qca8k_port_mirror_add(struct dsa_swi
 void qca8k_port_mirror_del(struct dsa_switch *ds, int port,
 			   struct dsa_mall_mirror_tc_entry *mirror);
 +/* Common port VLAN function */
 +int qca8k_port_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering,
 +			      struct netlink_ext_ack *extack);
 +int qca8k_port_vlan_add(struct dsa_switch *ds, int port,
 +			const struct switchdev_obj_port_vlan *vlan,
 +			struct netlink_ext_ack *extack);
 +int qca8k_port_vlan_del(struct dsa_switch *ds, int port,
 +			const struct switchdev_obj_port_vlan *vlan);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-13-net-dsa-qca8k-move-port-LAG-functions-to-common-code.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-13-net-dsa-qca8k-move-port-LAG-functions-to-common-code.patch
@ -0,0 +1,384 @@
 From e9bbf019af44b204b71ef8edf224002550aab641 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:22 +0200
 Subject: [PATCH 13/14] net: dsa: qca8k: move port LAG functions to common code
 The same port LAG functions are used by drivers based on qca8k family
 switch. Move them to common code to make them accessible also by other
 drivers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 168 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 165 ++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |   6 ++
 3 files changed, 171 insertions(+), 168 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1743,178 +1743,6 @@ qca8k_get_tag_protocol(struct dsa_switch
 	return DSA_TAG_PROTO_QCA;
 }
 -static bool
 -qca8k_lag_can_offload(struct dsa_switch *ds,
 -		      struct net_device *lag,
 -		      struct netdev_lag_upper_info *info)
 -{
 -	struct dsa_port *dp;
 -	int id, members = 0;
 -
 -	id = dsa_lag_id(ds->dst, lag);
 -	if (id < 0 || id >= ds->num_lag_ids)
 -		return false;
 -
 -	dsa_lag_foreach_port(dp, ds->dst, lag)
 -		/* Includes the port joining the LAG */
 -		members++;
 -
 -	if (members > QCA8K_NUM_PORTS_FOR_LAG)
 -		return false;
 -
 -	if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
 -		return false;
 -
 -	if (info->hash_type != NETDEV_LAG_HASH_L2 &&
 -	    info->hash_type != NETDEV_LAG_HASH_L23)
 -		return false;
 -
 -	return true;
 -}
 -
 -static int
 -qca8k_lag_setup_hash(struct dsa_switch *ds,
 -		     struct net_device *lag,
 -		     struct netdev_lag_upper_info *info)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	bool unique_lag = true;
 -	u32 hash = 0;
 -	int i, id;
 -
 -	id = dsa_lag_id(ds->dst, lag);
 -
 -	switch (info->hash_type) {
 -	case NETDEV_LAG_HASH_L23:
 -		hash |= QCA8K_TRUNK_HASH_SIP_EN;
 -		hash |= QCA8K_TRUNK_HASH_DIP_EN;
 -		fallthrough;
 -	case NETDEV_LAG_HASH_L2:
 -		hash |= QCA8K_TRUNK_HASH_SA_EN;
 -		hash |= QCA8K_TRUNK_HASH_DA_EN;
 -		break;
 -	default: /* We should NEVER reach this */
 -		return -EOPNOTSUPP;
 -	}
 -
 -	/* Check if we are the unique configured LAG */
 -	dsa_lags_foreach_id(i, ds->dst)
 -		if (i != id && dsa_lag_dev(ds->dst, i)) {
 -			unique_lag = false;
 -			break;
 -		}
 -
 -	/* Hash Mode is global. Make sure the same Hash Mode
 -	 * is set to all the 4 possible lag.
 -	 * If we are the unique LAG we can set whatever hash
 -	 * mode we want.
 -	 * To change hash mode it's needed to remove all LAG
 -	 * and change the mode with the latest.
 -	 */
 -	if (unique_lag) {
 -		priv->lag_hash_mode = hash;
 -	} else if (priv->lag_hash_mode != hash) {
 -		netdev_err(lag, "Error: Mismateched Hash Mode across different lag is not supported\n");
 -		return -EOPNOTSUPP;
 -	}
 -
 -	return regmap_update_bits(priv->regmap, QCA8K_TRUNK_HASH_EN_CTRL,
 -				  QCA8K_TRUNK_HASH_MASK, hash);
 -}
 -
 -static int
 -qca8k_lag_refresh_portmap(struct dsa_switch *ds, int port,
 -			  struct net_device *lag, bool delete)
 -{
 -	struct qca8k_priv *priv = ds->priv;
 -	int ret, id, i;
 -	u32 val;
 -
 -	id = dsa_lag_id(ds->dst, lag);
 -
 -	/* Read current port member */
 -	ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0, &val);
 -	if (ret)
 -		return ret;
 -
 -	/* Shift val to the correct trunk */
 -	val >>= QCA8K_REG_GOL_TRUNK_SHIFT(id);
 -	val &= QCA8K_REG_GOL_TRUNK_MEMBER_MASK;
 -	if (delete)
 -		val &= ~BIT(port);
 -	else
 -		val |= BIT(port);
 -
 -	/* Update port member. With empty portmap disable trunk */
 -	ret = regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0,
 -				 QCA8K_REG_GOL_TRUNK_MEMBER(id) |
 -				 QCA8K_REG_GOL_TRUNK_EN(id),
 -				 !val << QCA8K_REG_GOL_TRUNK_SHIFT(id) |
 -				 val << QCA8K_REG_GOL_TRUNK_SHIFT(id));
 -
 -	/* Search empty member if adding or port on deleting */
 -	for (i = 0; i < QCA8K_NUM_PORTS_FOR_LAG; i++) {
 -		ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id), &val);
 -		if (ret)
 -			return ret;
 -
 -		val >>= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i);
 -		val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_MASK;
 -
 -		if (delete) {
 -			/* If port flagged to be disabled assume this member is
 -			 * empty
 -			 */
 -			if (val != QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
 -				continue;
 -
 -			val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK;
 -			if (val != port)
 -				continue;
 -		} else {
 -			/* If port flagged to be enabled assume this member is
 -			 * already set
 -			 */
 -			if (val == QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
 -				continue;
 -		}
 -
 -		/* We have found the member to add/remove */
 -		break;
 -	}
 -
 -	/* Set port in the correct port mask or disable port if in delete mode */
 -	return regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id),
 -				  QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN(id, i) |
 -				  QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT(id, i),
 -				  !delete << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i) |
 -				  port << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i));
 -}
 -
 -static int
 -qca8k_port_lag_join(struct dsa_switch *ds, int port,
 -		    struct net_device *lag,
 -		    struct netdev_lag_upper_info *info)
 -{
 -	int ret;
 -
 -	if (!qca8k_lag_can_offload(ds, lag, info))
 -		return -EOPNOTSUPP;
 -
 -	ret = qca8k_lag_setup_hash(ds, lag, info);
 -	if (ret)
 -		return ret;
 -
 -	return qca8k_lag_refresh_portmap(ds, port, lag, false);
 -}
 -
 -static int
 -qca8k_port_lag_leave(struct dsa_switch *ds, int port,
 -		     struct net_device *lag)
 -{
 -	return qca8k_lag_refresh_portmap(ds, port, lag, true);
 -}
 -
 static void
 qca8k_master_change(struct dsa_switch *ds, const struct net_device *master,
 		    bool operational)
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -1009,3 +1009,169 @@ int qca8k_port_vlan_del(struct dsa_switc
 	return ret;
 }
 +
 +static bool qca8k_lag_can_offload(struct dsa_switch *ds,
 +				  struct net_device *lag,
 +				  struct netdev_lag_upper_info *info)
 +{
 +	struct dsa_port *dp;
 +	int id, members = 0;
 +
 +	id = dsa_lag_id(ds->dst, lag);
 +	if (id < 0 || id >= ds->num_lag_ids)
 +		return false;
 +
 +	dsa_lag_foreach_port(dp, ds->dst, lag)
 +		/* Includes the port joining the LAG */
 +		members++;
 +
 +	if (members > QCA8K_NUM_PORTS_FOR_LAG)
 +		return false;
 +
 +	if (info->tx_type != NETDEV_LAG_TX_TYPE_HASH)
 +		return false;
 +
 +	if (info->hash_type != NETDEV_LAG_HASH_L2 &&
 +	    info->hash_type != NETDEV_LAG_HASH_L23)
 +		return false;
 +
 +	return true;
 +}
 +
 +static int qca8k_lag_setup_hash(struct dsa_switch *ds,
 +				struct net_device *lag,
 +				struct netdev_lag_upper_info *info)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	bool unique_lag = true;
 +	u32 hash = 0;
 +	int i, id;
 +
 +	id = dsa_lag_id(ds->dst, lag);
 +
 +	switch (info->hash_type) {
 +	case NETDEV_LAG_HASH_L23:
 +		hash |= QCA8K_TRUNK_HASH_SIP_EN;
 +		hash |= QCA8K_TRUNK_HASH_DIP_EN;
 +		fallthrough;
 +	case NETDEV_LAG_HASH_L2:
 +		hash |= QCA8K_TRUNK_HASH_SA_EN;
 +		hash |= QCA8K_TRUNK_HASH_DA_EN;
 +		break;
 +	default: /* We should NEVER reach this */
 +		return -EOPNOTSUPP;
 +	}
 +
 +	/* Check if we are the unique configured LAG */
 +	dsa_lags_foreach_id(i, ds->dst)
 +		if (i != id && dsa_lag_dev(ds->dst, i)) {
 +			unique_lag = false;
 +			break;
 +		}
 +
 +	/* Hash Mode is global. Make sure the same Hash Mode
 +	 * is set to all the 4 possible lag.
 +	 * If we are the unique LAG we can set whatever hash
 +	 * mode we want.
 +	 * To change hash mode it's needed to remove all LAG
 +	 * and change the mode with the latest.
 +	 */
 +	if (unique_lag) {
 +		priv->lag_hash_mode = hash;
 +	} else if (priv->lag_hash_mode != hash) {
 +		netdev_err(lag, "Error: Mismatched Hash Mode across different lag is not supported\n");
 +		return -EOPNOTSUPP;
 +	}
 +
 +	return regmap_update_bits(priv->regmap, QCA8K_TRUNK_HASH_EN_CTRL,
 +				  QCA8K_TRUNK_HASH_MASK, hash);
 +}
 +
 +static int qca8k_lag_refresh_portmap(struct dsa_switch *ds, int port,
 +				     struct net_device *lag, bool delete)
 +{
 +	struct qca8k_priv *priv = ds->priv;
 +	int ret, id, i;
 +	u32 val;
 +
 +	id = dsa_lag_id(ds->dst, lag);
 +
 +	/* Read current port member */
 +	ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0, &val);
 +	if (ret)
 +		return ret;
 +
 +	/* Shift val to the correct trunk */
 +	val >>= QCA8K_REG_GOL_TRUNK_SHIFT(id);
 +	val &= QCA8K_REG_GOL_TRUNK_MEMBER_MASK;
 +	if (delete)
 +		val &= ~BIT(port);
 +	else
 +		val |= BIT(port);
 +
 +	/* Update port member. With empty portmap disable trunk */
 +	ret = regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL0,
 +				 QCA8K_REG_GOL_TRUNK_MEMBER(id) |
 +				 QCA8K_REG_GOL_TRUNK_EN(id),
 +				 !val << QCA8K_REG_GOL_TRUNK_SHIFT(id) |
 +				 val << QCA8K_REG_GOL_TRUNK_SHIFT(id));
 +
 +	/* Search empty member if adding or port on deleting */
 +	for (i = 0; i < QCA8K_NUM_PORTS_FOR_LAG; i++) {
 +		ret = regmap_read(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id), &val);
 +		if (ret)
 +			return ret;
 +
 +		val >>= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i);
 +		val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_MASK;
 +
 +		if (delete) {
 +			/* If port flagged to be disabled assume this member is
 +			 * empty
 +			 */
 +			if (val != QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
 +				continue;
 +
 +			val &= QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT_MASK;
 +			if (val != port)
 +				continue;
 +		} else {
 +			/* If port flagged to be enabled assume this member is
 +			 * already set
 +			 */
 +			if (val == QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN_MASK)
 +				continue;
 +		}
 +
 +		/* We have found the member to add/remove */
 +		break;
 +	}
 +
 +	/* Set port in the correct port mask or disable port if in delete mode */
 +	return regmap_update_bits(priv->regmap, QCA8K_REG_GOL_TRUNK_CTRL(id),
 +				  QCA8K_REG_GOL_TRUNK_ID_MEM_ID_EN(id, i) |
 +				  QCA8K_REG_GOL_TRUNK_ID_MEM_ID_PORT(id, i),
 +				  !delete << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i) |
 +				  port << QCA8K_REG_GOL_TRUNK_ID_MEM_ID_SHIFT(id, i));
 +}
 +
 +int qca8k_port_lag_join(struct dsa_switch *ds, int port, struct net_device *lag,
 +			struct netdev_lag_upper_info *info)
 +{
 +	int ret;
 +
 +	if (!qca8k_lag_can_offload(ds, lag, info))
 +		return -EOPNOTSUPP;
 +
 +	ret = qca8k_lag_setup_hash(ds, lag, info);
 +	if (ret)
 +		return ret;
 +
 +	return qca8k_lag_refresh_portmap(ds, port, lag, false);
 +}
 +
 +int qca8k_port_lag_leave(struct dsa_switch *ds, int port,
 +			 struct net_device *lag)
 +{
 +	return qca8k_lag_refresh_portmap(ds, port, lag, true);
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -495,4 +495,10 @@ int qca8k_port_vlan_add(struct dsa_switc
 int qca8k_port_vlan_del(struct dsa_switch *ds, int port,
 			const struct switchdev_obj_port_vlan *vlan);
 +/* Common port LAG function */
 +int qca8k_port_lag_join(struct dsa_switch *ds, int port, struct net_device *lag,
 +			struct netdev_lag_upper_info *info);
 +int qca8k_port_lag_leave(struct dsa_switch *ds, int port,
 +			 struct net_device *lag);
 +
 #endif /* __QCA8K_H */
--- a/target/linux/generic/backport-5.15/771-v6.0-14-net-dsa-qca8k-move-read_switch_id-function-to-common.patch
+++ b/target/linux/generic/backport-5.15/771-v6.0-14-net-dsa-qca8k-move-read_switch_id-function-to-common.patch
@ -0,0 +1,102 @@
 From 9d1bcb1f293f1391302a109c9819c3705c804700 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Wed, 27 Jul 2022 13:35:23 +0200
 Subject: [PATCH 14/14] net: dsa: qca8k: move read_switch_id function to common
 code
 The same function to read the switch id is used by drivers based on
 qca8k family switch. Move them to common code to make them accessible
 also by other drivers.
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 29 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 29 +++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  1 +
 3 files changed, 30 insertions(+), 29 deletions(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1822,35 +1822,6 @@ static const struct dsa_switch_ops qca8k
 	.connect_tag_protocol	= qca8k_connect_tag_protocol,
 };
 -static int qca8k_read_switch_id(struct qca8k_priv *priv)
 -{
 -	u32 val;
 -	u8 id;
 -	int ret;
 -
 -	if (!priv->info)
 -		return -ENODEV;
 -
 -	ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val);
 -	if (ret < 0)
 -		return -ENODEV;
 -
 -	id = QCA8K_MASK_CTRL_DEVICE_ID(val);
 -	if (id != priv->info->id) {
 -		dev_err(priv->dev,
 -			"Switch id detected %x but expected %x",
 -			id, priv->info->id);
 -		return -ENODEV;
 -	}
 -
 -	priv->switch_id = id;
 -
 -	/* Save revision to communicate to the internal PHY driver */
 -	priv->switch_revision = QCA8K_MASK_CTRL_REV_ID(val);
 -
 -	return 0;
 -}
 -
 static int
 qca8k_sw_probe(struct mdio_device *mdiodev)
 {
 --- a/drivers/net/dsa/qca/qca8k-common.c
 +++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -1175,3 +1175,32 @@ int qca8k_port_lag_leave(struct dsa_swit
 {
 	return qca8k_lag_refresh_portmap(ds, port, lag, true);
 }
 +
 +int qca8k_read_switch_id(struct qca8k_priv *priv)
 +{
 +	u32 val;
 +	u8 id;
 +	int ret;
 +
 +	if (!priv->info)
 +		return -ENODEV;
 +
 +	ret = qca8k_read(priv, QCA8K_REG_MASK_CTRL, &val);
 +	if (ret < 0)
 +		return -ENODEV;
 +
 +	id = QCA8K_MASK_CTRL_DEVICE_ID(val);
 +	if (id != priv->info->id) {
 +		dev_err(priv->dev,
 +			"Switch id detected %x but expected %x",
 +			id, priv->info->id);
 +		return -ENODEV;
 +	}
 +
 +	priv->switch_id = id;
 +
 +	/* Save revision to communicate to the internal PHY driver */
 +	priv->switch_revision = QCA8K_MASK_CTRL_REV_ID(val);
 +
 +	return 0;
 +}
 --- a/drivers/net/dsa/qca/qca8k.h
 +++ b/drivers/net/dsa/qca/qca8k.h
@@ -424,6 +424,7 @@ extern const struct qca8k_mib_desc ar832
 extern const struct regmap_access_table qca8k_readable_table;
 int qca8k_mib_init(struct qca8k_priv *priv);
 void qca8k_port_set_status(struct qca8k_priv *priv, int port, int enable);
 +int qca8k_read_switch_id(struct qca8k_priv *priv);
 /* Common read/write/rmw function */
 int qca8k_read(struct qca8k_priv *priv, u32 reg, u32 *val);
--- a/target/linux/generic/backport-5.15/772-v6.0-net-dsa-qca8k-fix-NULL-pointer-dereference-for-of_de.patch
+++ b/target/linux/generic/backport-5.15/772-v6.0-net-dsa-qca8k-fix-NULL-pointer-dereference-for-of_de.patch
@ -0,0 +1,29 @@
 From 057bcf15db8e625276ddf02b2b7c668a3cb43f81 Mon Sep 17 00:00:00 2001
 From: Christian Marangi <ansuelsmth@gmail.com>
 Date: Sun, 4 Sep 2022 23:46:24 +0200
 Subject: [net PATCH] net: dsa: qca8k: fix NULL pointer dereference for
 of_device_get_match_data
 of_device_get_match_data is called on priv->dev before priv->dev is
 actually set. Move of_device_get_match_data after priv->dev is correctly
 set to fix this kernel panic.
 Fixes: 3bb0844e7bcd ("net: dsa: qca8k: cache match data to speed up access")
 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
 ---
 drivers/net/dsa/qca/qca8k-8xxx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 --- a/drivers/net/dsa/qca/qca8k-8xxx.c
 +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1835,9 +1835,9 @@ qca8k_sw_probe(struct mdio_device *mdiod
 	if (!priv)
 		return -ENOMEM;
 -	priv->info = of_device_get_match_data(priv->dev);
 	priv->bus = mdiodev->bus;
 	priv->dev = &mdiodev->dev;
 +	priv->info = of_device_get_match_data(priv->dev);
 	priv->reset_gpio = devm_gpiod_get_optional(priv->dev, "reset",
 						   GPIOD_ASIS);