[net-next PATCH v3 00/14] net: dsa: qca8k: code split for qca8k

[net-next PATCH v3 00/14] net: dsa: qca8k: code split for qca8k

[Christian Marangi]

This is needed ad ipq4019 SoC have an internal switch that is
based on qca8k with very minor changes. The general function is equal.

Because of this we split the driver to common and specific code.

As the common function needs to be moved to a different file to be
reused, we had to convert every remaining user of qca8k_read/write/rmw
to regmap variant.
We had also to generilized the special handling for the ethtool_stats
function that makes use of the autocast mib. (ipq4019 will have a
different tagger and use mmio so it could be quicker to use mmio instead
of automib feature)
And we had to convert the regmap read/write to bulk implementation to
drop the special function that makes use of it. This will be compatible
with ipq4019 and at the same time permits normal switch to use the eth
mgmt way to send the entire ATU table read/write in one go.

v3:
- Squash more patch to skip even more "migration patch"
- Add new patch to cache match data in priv struct
- Fix extra space
- Drop unnecessary cast to qca8k_priv from void pointers
v2:
- Rework patch to drop dependency with bulk regmap (will be
  converted later)
- Split the split patch to additional patch
- Rework autocast_mib function and move it to match data

Christian Marangi (14):
  net: dsa: qca8k: cache match data to speed up access
  net: dsa: qca8k: make mib autocast feature optional
  net: dsa: qca8k: move mib struct to common code
  net: dsa: qca8k: move qca8k read/write/rmw and reg table to common
    code
  net: dsa: qca8k: move qca8k bulk read/write helper to common code
  net: dsa: qca8k: move mib init function to common code
  net: dsa: qca8k: move port set status/eee/ethtool stats function to
    common code
  net: dsa: qca8k: move bridge functions to common code
  net: dsa: qca8k: move set age/MTU/port enable/disable functions to
    common code
  net: dsa: qca8k: move port FDB/MDB function to common code
  net: dsa: qca8k: move port mirror functions to common code
  net: dsa: qca8k: move port VLAN functions to common code
  net: dsa: qca8k: move port LAG functions to common code
  net: dsa: qca8k: move read_switch_id function to common code

 drivers/net/dsa/qca/Makefile                  |    1 +
 drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} | 1716 +++--------------
 drivers/net/dsa/qca/qca8k-common.c            | 1240 ++++++++++++
 drivers/net/dsa/qca/qca8k.h                   |  100 +
 4 files changed, 1584 insertions(+), 1473 deletions(-)
 rename drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} (63%)
 create mode 100644 drivers/net/dsa/qca/qca8k-common.c

-- 
2.36.1

[net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k.c | 28 ++++++++++------------------
 drivers/net/dsa/qca/qca8k.h |  1 +
 2 files changed, 11 insertions(+), 18 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
index 1cbb05b0323f..212b284f9f73 100644
--- 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 dsa_switch *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 *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;
@@ -1996,23 +1994,19 @@ static void qca8k_setup_pcs(struct qca8k_priv *priv, struct qca8k_pcs *qpcs,
 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;
@@ -2031,10 +2025,9 @@ static void qca8k_mib_autocast_handler(struct dsa_switch *ds, struct sk_buff *sk
 	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 */
@@ -2106,7 +2099,6 @@ 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_match_data *match_data;
 	const struct qca8k_mib_desc *mib;
 	u32 reg, i, val;
 	u32 hi = 0;
@@ -2116,9 +2108,7 @@ qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 	    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;
 
@@ -2141,15 +2131,12 @@ qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 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
@@ -3168,6 +3155,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
 	if (ret)
 		return ret;
 
+	/* Cache match data in priv struct.
+	 * Match data is already checked in read_switch_id.
+	 */
+	priv->info = of_device_get_match_data(priv->dev);
+
 	priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
 	if (!priv->ds)
 		return -ENOMEM;
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index ec58d0e80a70..0b990b46890a 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -401,6 +401,7 @@ struct qca8k_priv {
 	struct qca8k_mdio_cache mdio_cache;
 	struct qca8k_pcs pcs_port_0;
 	struct qca8k_pcs pcs_port_6;
+	const struct qca8k_match_data *info;
 };
 
 struct qca8k_mib_desc {
-- 
2.36.1

Re: [net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Vladimir Oltean]

On Sat, Jul 23, 2022 at 04:18:32PM +0200, Christian Marangi wrote:
> Using of_device_get_match_data is expensive. Cache match data to speed

'is expensive' sounds like it's terribly expensive. It's just more than
it needs to be.

> up access and rework user of match data to use the new cached value.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> ---
>  drivers/net/dsa/qca/qca8k.c | 28 ++++++++++------------------
>  drivers/net/dsa/qca/qca8k.h |  1 +
>  2 files changed, 11 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
> index 1cbb05b0323f..212b284f9f73 100644
> --- a/drivers/net/dsa/qca/qca8k.c
> +++ b/drivers/net/dsa/qca/qca8k.c
> @@ -3168,6 +3155,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
>  	if (ret)
>  		return ret;
>  
> +	/* Cache match data in priv struct.
> +	 * Match data is already checked in read_switch_id.
> +	 */
> +	priv->info = of_device_get_match_data(priv->dev);
> +

So why don't you set priv->info right before calling qca8k_read_switch_id(),
then?

>  	priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
>  	if (!priv->ds)
>  		return -ENOMEM;
> diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
> index ec58d0e80a70..0b990b46890a 100644
> --- a/drivers/net/dsa/qca/qca8k.h
> +++ b/drivers/net/dsa/qca/qca8k.h
> @@ -401,6 +401,7 @@ struct qca8k_priv {
>  	struct qca8k_mdio_cache mdio_cache;
>  	struct qca8k_pcs pcs_port_0;
>  	struct qca8k_pcs pcs_port_6;
> +	const struct qca8k_match_data *info;
>  };
>  
>  struct qca8k_mib_desc {
> -- 
> 2.36.1
> 

Re: [net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Christian Marangi]

On Mon, Jul 25, 2022 at 01:30:31AM +0300, Vladimir Oltean wrote:
> On Sat, Jul 23, 2022 at 04:18:32PM +0200, Christian Marangi wrote:
> > Using of_device_get_match_data is expensive. Cache match data to speed
> 
> 'is expensive' sounds like it's terribly expensive. It's just more than
> it needs to be.
>

Ok will reword.

> > up access and rework user of match data to use the new cached value.
> > 
> > Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
> > ---
> >  drivers/net/dsa/qca/qca8k.c | 28 ++++++++++------------------
> >  drivers/net/dsa/qca/qca8k.h |  1 +
> >  2 files changed, 11 insertions(+), 18 deletions(-)
> > 
> > diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
> > index 1cbb05b0323f..212b284f9f73 100644
> > --- a/drivers/net/dsa/qca/qca8k.c
> > +++ b/drivers/net/dsa/qca/qca8k.c
> > @@ -3168,6 +3155,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
> >  	if (ret)
> >  		return ret;
> >  
> > +	/* Cache match data in priv struct.
> > +	 * Match data is already checked in read_switch_id.
> > +	 */
> > +	priv->info = of_device_get_match_data(priv->dev);
> > +
> 
> So why don't you set priv->info right before calling qca8k_read_switch_id(),
> then?
> 

The idea was to make the read_switch_id a function to check if the
switch is compatible... But yhea now that i think about it doesn't
really make sense.

(Just for reference I just sent v4 as I got a report from kernel test
bot... it's really just this series with a change in 0002 patch that set
the struct for ops as a pointer... didn't encounter this with gcc but it
seems kernel test bot use some special config...)

> >  	priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
> >  	if (!priv->ds)
> >  		return -ENOMEM;
> > diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
> > index ec58d0e80a70..0b990b46890a 100644
> > --- a/drivers/net/dsa/qca/qca8k.h
> > +++ b/drivers/net/dsa/qca/qca8k.h
> > @@ -401,6 +401,7 @@ struct qca8k_priv {
> >  	struct qca8k_mdio_cache mdio_cache;
> >  	struct qca8k_pcs pcs_port_0;
> >  	struct qca8k_pcs pcs_port_6;
> > +	const struct qca8k_match_data *info;
> >  };
> >  
> >  struct qca8k_mib_desc {
> > -- 
> > 2.36.1
> > 
> 

-- 
	Ansuel

Re: [net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Vladimir Oltean]

On Sun, Jul 24, 2022 at 10:27:13PM +0200, Christian Marangi wrote:
> > > diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
> > > index 1cbb05b0323f..212b284f9f73 100644
> > > --- a/drivers/net/dsa/qca/qca8k.c
> > > +++ b/drivers/net/dsa/qca/qca8k.c
> > > @@ -3168,6 +3155,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
> > >  	if (ret)
> > >  		return ret;
> > >  
> > > +	/* Cache match data in priv struct.
> > > +	 * Match data is already checked in read_switch_id.
> > > +	 */
> > > +	priv->info = of_device_get_match_data(priv->dev);
> > > +
> > 
> > So why don't you set priv->info right before calling qca8k_read_switch_id(),
> > then?
> > 
> 
> The idea was to make the read_switch_id a function to check if the
> switch is compatible... But yhea now that i think about it doesn't
> really make sense.

I am not saying qca8k_read_switch_id() should do anything more than
reading the switch id. I am saying why can't qca8k_read_switch_id()
already find priv->info be pre-populated, just like any other function.
Why don't you set priv->info a lot earlier, see below.

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index fa91517e930b..590ff810c95e 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1892,6 +1892,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
 
 	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);
@@ -1924,11 +1925,6 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
 	if (ret)
 		return ret;
 
-	/* Cache match data in priv struct.
-	 * Match data is already checked in read_switch_id.
-	 */
-	priv->info = of_device_get_match_data(priv->dev);
-
 	priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
 	if (!priv->ds)
 		return -ENOMEM;
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index e6294d6a7b8f..8f634edc52c2 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -1211,23 +1211,19 @@ qca8k_port_lag_leave(struct dsa_switch *ds, int port,
 
 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)
-		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 != 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;
 	}
 

Also note how the "Switch id detected ... but expected ..." message
lacks a trailing \n.

> (Just for reference I just sent v4 as I got a report from kernel test
> bot... it's really just this series with a change in 0002 patch that set
> the struct for ops as a pointer... didn't encounter this with gcc but it
> seems kernel test bot use some special config...)

Yea, I was still kinda reviewing v3... Anyway, now you'll have to wait
for me to finish my v3 feedback on the v4, and then send the v5 after at
least 24 more hours.

Re: [net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Christian Marangi]

On Mon, Jul 25, 2022 at 02:06:26AM +0300, Vladimir Oltean wrote:
> On Sun, Jul 24, 2022 at 10:27:13PM +0200, Christian Marangi wrote:
> > > > diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
> > > > index 1cbb05b0323f..212b284f9f73 100644
> > > > --- a/drivers/net/dsa/qca/qca8k.c
> > > > +++ b/drivers/net/dsa/qca/qca8k.c
> > > > @@ -3168,6 +3155,11 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
> > > >  	if (ret)
> > > >  		return ret;
> > > >  
> > > > +	/* Cache match data in priv struct.
> > > > +	 * Match data is already checked in read_switch_id.
> > > > +	 */
> > > > +	priv->info = of_device_get_match_data(priv->dev);
> > > > +
> > > 
> > > So why don't you set priv->info right before calling qca8k_read_switch_id(),
> > > then?
> > > 
> > 
> > The idea was to make the read_switch_id a function to check if the
> > switch is compatible... But yhea now that i think about it doesn't
> > really make sense.
> 
> I am not saying qca8k_read_switch_id() should do anything more than
> reading the switch id. I am saying why can't qca8k_read_switch_id()
> already find priv->info be pre-populated, just like any other function.
> Why don't you set priv->info a lot earlier, see below.
>

Sure, it was just a stupid idea to set everything not strictly neeeded
only after verifying that we have a correct switch... But it doesn't
make sense as qca8k_priv is freed anyway if that's the case.

Will do the change in v5.

> diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
> index fa91517e930b..590ff810c95e 100644
> --- a/drivers/net/dsa/qca/qca8k-8xxx.c
> +++ b/drivers/net/dsa/qca/qca8k-8xxx.c
> @@ -1892,6 +1892,7 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
>  
>  	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);
> @@ -1924,11 +1925,6 @@ qca8k_sw_probe(struct mdio_device *mdiodev)
>  	if (ret)
>  		return ret;
>  
> -	/* Cache match data in priv struct.
> -	 * Match data is already checked in read_switch_id.
> -	 */
> -	priv->info = of_device_get_match_data(priv->dev);
> -
>  	priv->ds = devm_kzalloc(&mdiodev->dev, sizeof(*priv->ds), GFP_KERNEL);
>  	if (!priv->ds)
>  		return -ENOMEM;
> diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
> index e6294d6a7b8f..8f634edc52c2 100644
> --- a/drivers/net/dsa/qca/qca8k-common.c
> +++ b/drivers/net/dsa/qca/qca8k-common.c
> @@ -1211,23 +1211,19 @@ qca8k_port_lag_leave(struct dsa_switch *ds, int port,
>  
>  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)
> -		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 != 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;
>  	}
>  
> 
> Also note how the "Switch id detected ... but expected ..." message
> lacks a trailing \n.
> 

Will fix this when the read_switch_id function is moved to common file.

> > (Just for reference I just sent v4 as I got a report from kernel test
> > bot... it's really just this series with a change in 0002 patch that set
> > the struct for ops as a pointer... didn't encounter this with gcc but it
> > seems kernel test bot use some special config...)
> 
> Yea, I was still kinda reviewing v3... Anyway, now you'll have to wait
> for me to finish my v3 feedback on the v4, and then send the v5 after at
> least 24 more hours.

Sure and sorry for the mess.

-- 
	Ansuel

Re: [net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Vladimir Oltean]

On Sun, Jul 24, 2022 at 10:42:20PM +0200, Christian Marangi wrote:
> Sure, it was just a stupid idea to set everything not strictly neeeded
> only after verifying that we have a correct switch... But it doesn't
> make sense as qca8k_priv is freed anyway if that's the case.

I don't understand what you're saying. With your proposed logic,
of_device_get_match_data() will be called anyway in qca8k_read_switch_id(),
and if the switch id is valid, it will be called once more in qca8k_sw_probe().
With my proposed logic, of_device_get_match_data() will be called exactly
once, to populate priv->info *before* the first instance of when it's
going to be needed.

Re: [net-next PATCH v3 01/14] net: dsa: qca8k: cache match data to speed up access

[Christian Marangi]

On Mon, Jul 25, 2022 at 02:18:43AM +0300, Vladimir Oltean wrote:
> On Sun, Jul 24, 2022 at 10:42:20PM +0200, Christian Marangi wrote:
> > Sure, it was just a stupid idea to set everything not strictly neeeded
> > only after verifying that we have a correct switch... But it doesn't
> > make sense as qca8k_priv is freed anyway if that's the case.
> 
> I don't understand what you're saying. With your proposed logic,
> of_device_get_match_data() will be called anyway in qca8k_read_switch_id(),
> and if the switch id is valid, it will be called once more in qca8k_sw_probe().
> With my proposed logic, of_device_get_match_data() will be called exactly
> once, to populate priv->info *before* the first instance of when it's
> going to be needed.

Just ignore... it's me trying to give a reason for my broken logic.

-- 
	Ansuel

[net-next PATCH v3 02/14] net: dsa: qca8k: make mib autocast feature optional

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k.c | 11 +++++++++--
 drivers/net/dsa/qca/qca8k.h |  5 +++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
index 212b284f9f73..9820c5942d2a 100644
--- a/drivers/net/dsa/qca/qca8k.c
+++ b/drivers/net/dsa/qca/qca8k.c
@@ -2104,8 +2104,8 @@ qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
 	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++) {
@@ -3248,20 +3248,27 @@ static int qca8k_resume(struct device *dev)
 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[] = {
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 0b990b46890a..7b4a698f092a 100644
--- 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;
+	struct qca8k_info_ops ops;
 };
 
 enum {
-- 
2.36.1

Re: [net-next PATCH v3 02/14] net: dsa: qca8k: make mib autocast feature optional

[Vladimir Oltean]

On Sat, Jul 23, 2022 at 04:18:33PM +0200, Christian Marangi wrote:
> 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>
> ---
>  drivers/net/dsa/qca/qca8k.c | 11 +++++++++--
>  drivers/net/dsa/qca/qca8k.h |  5 +++++
>  2 files changed, 14 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
> index 212b284f9f73..9820c5942d2a 100644
> --- a/drivers/net/dsa/qca/qca8k.c
> +++ b/drivers/net/dsa/qca/qca8k.c
> @@ -2104,8 +2104,8 @@ qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
>  	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++) {
> @@ -3248,20 +3248,27 @@ static int qca8k_resume(struct device *dev)
>  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[] = {
> diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
> index 0b990b46890a..7b4a698f092a 100644
> --- 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;
> +	struct qca8k_info_ops ops;

This creates a copy of the structure for each of qca8327, qca8328, etc etc,
which in turn will consume 3 times more space than necessary when new
ops are added. Could you make this "const struct qca8k_ops *ops"?

>  };
>  
>  enum {
> -- 
> 2.36.1
> 

Re: [net-next PATCH v3 02/14] net: dsa: qca8k: make mib autocast feature optional

[Christian Marangi]

On Mon, Jul 25, 2022 at 01:33:48AM +0300, Vladimir Oltean wrote:
> On Sat, Jul 23, 2022 at 04:18:33PM +0200, Christian Marangi wrote:
> > 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>
> > ---
> >  drivers/net/dsa/qca/qca8k.c | 11 +++++++++--
> >  drivers/net/dsa/qca/qca8k.h |  5 +++++
> >  2 files changed, 14 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k.c
> > index 212b284f9f73..9820c5942d2a 100644
> > --- a/drivers/net/dsa/qca/qca8k.c
> > +++ b/drivers/net/dsa/qca/qca8k.c
> > @@ -2104,8 +2104,8 @@ qca8k_get_ethtool_stats(struct dsa_switch *ds, int port,
> >  	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++) {
> > @@ -3248,20 +3248,27 @@ static int qca8k_resume(struct device *dev)
> >  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[] = {
> > diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
> > index 0b990b46890a..7b4a698f092a 100644
> > --- 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;
> > +	struct qca8k_info_ops ops;
> 
> This creates a copy of the structure for each of qca8327, qca8328, etc etc,
> which in turn will consume 3 times more space than necessary when new
> ops are added. Could you make this "const struct qca8k_ops *ops"?
> 

I already done this change in v4 as it was causing compilation error for
kernel test bot.

> >  };
> >  
> >  enum {
> > -- 
> > 2.36.1
> > 
> 

-- 
	Ansuel

[net-next PATCH v3 03/14] net: dsa: qca8k: move mib struct to common code

[Christian Marangi]

The same MIB struct 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>
---
 drivers/net/dsa/qca/Makefile                  |  1 +
 drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} | 51 ---------------
 drivers/net/dsa/qca/qca8k-common.c            | 63 +++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h                   |  3 +
 4 files changed, 67 insertions(+), 51 deletions(-)
 rename drivers/net/dsa/qca/{qca8k.c => qca8k-8xxx.c} (98%)
 create mode 100644 drivers/net/dsa/qca/qca8k-common.c

diff --git a/drivers/net/dsa/qca/Makefile b/drivers/net/dsa/qca/Makefile
index 40bb7c27285b..701f1d199e93 100644
--- a/drivers/net/dsa/qca/Makefile
+++ b/drivers/net/dsa/qca/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_NET_DSA_AR9331)	+= ar9331.o
 obj-$(CONFIG_NET_DSA_QCA8K)	+= qca8k.o
+qca8k-y 			+= qca8k-common.o qca8k-8xxx.o
diff --git a/drivers/net/dsa/qca/qca8k.c b/drivers/net/dsa/qca/qca8k-8xxx.c
similarity index 98%
rename from drivers/net/dsa/qca/qca8k.c
rename to drivers/net/dsa/qca/qca8k-8xxx.c
index 9820c5942d2a..249dc4f89beb 100644
--- a/drivers/net/dsa/qca/qca8k.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -24,57 +24,6 @@
 
 #include "qca8k.h"
 
-#define MIB_DESC(_s, _o, _n)	\
-	{			\
-		.size = (_s),	\
-		.offset = (_o),	\
-		.name = (_n),	\
-	}
-
-static const struct qca8k_mib_desc ar8327_mib[] = {
-	MIB_DESC(1, 0x00, "RxBroad"),
-	MIB_DESC(1, 0x04, "RxPause"),
-	MIB_DESC(1, 0x08, "RxMulti"),
-	MIB_DESC(1, 0x0c, "RxFcsErr"),
-	MIB_DESC(1, 0x10, "RxAlignErr"),
-	MIB_DESC(1, 0x14, "RxRunt"),
-	MIB_DESC(1, 0x18, "RxFragment"),
-	MIB_DESC(1, 0x1c, "Rx64Byte"),
-	MIB_DESC(1, 0x20, "Rx128Byte"),
-	MIB_DESC(1, 0x24, "Rx256Byte"),
-	MIB_DESC(1, 0x28, "Rx512Byte"),
-	MIB_DESC(1, 0x2c, "Rx1024Byte"),
-	MIB_DESC(1, 0x30, "Rx1518Byte"),
-	MIB_DESC(1, 0x34, "RxMaxByte"),
-	MIB_DESC(1, 0x38, "RxTooLong"),
-	MIB_DESC(2, 0x3c, "RxGoodByte"),
-	MIB_DESC(2, 0x44, "RxBadByte"),
-	MIB_DESC(1, 0x4c, "RxOverFlow"),
-	MIB_DESC(1, 0x50, "Filtered"),
-	MIB_DESC(1, 0x54, "TxBroad"),
-	MIB_DESC(1, 0x58, "TxPause"),
-	MIB_DESC(1, 0x5c, "TxMulti"),
-	MIB_DESC(1, 0x60, "TxUnderRun"),
-	MIB_DESC(1, 0x64, "Tx64Byte"),
-	MIB_DESC(1, 0x68, "Tx128Byte"),
-	MIB_DESC(1, 0x6c, "Tx256Byte"),
-	MIB_DESC(1, 0x70, "Tx512Byte"),
-	MIB_DESC(1, 0x74, "Tx1024Byte"),
-	MIB_DESC(1, 0x78, "Tx1518Byte"),
-	MIB_DESC(1, 0x7c, "TxMaxByte"),
-	MIB_DESC(1, 0x80, "TxOverSize"),
-	MIB_DESC(2, 0x84, "TxByte"),
-	MIB_DESC(1, 0x8c, "TxCollision"),
-	MIB_DESC(1, 0x90, "TxAbortCol"),
-	MIB_DESC(1, 0x94, "TxMultiCol"),
-	MIB_DESC(1, 0x98, "TxSingleCol"),
-	MIB_DESC(1, 0x9c, "TxExcDefer"),
-	MIB_DESC(1, 0xa0, "TxDefer"),
-	MIB_DESC(1, 0xa4, "TxLateCol"),
-	MIB_DESC(1, 0xa8, "RXUnicast"),
-	MIB_DESC(1, 0xac, "TXUnicast"),
-};
-
 static void
 qca8k_split_addr(u32 regaddr, u16 *r1, u16 *r2, u16 *page)
 {
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
new file mode 100644
index 000000000000..7a63e96c8c08
--- /dev/null
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2009 Felix Fietkau <nbd@nbd.name>
+ * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (c) 2015, 2019, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2016 John Crispin <john@phrozen.org>
+ */
+
+#include <linux/netdevice.h>
+#include <net/dsa.h>
+
+#include "qca8k.h"
+
+#define MIB_DESC(_s, _o, _n)	\
+	{			\
+		.size = (_s),	\
+		.offset = (_o),	\
+		.name = (_n),	\
+	}
+
+const struct qca8k_mib_desc ar8327_mib[] = {
+	MIB_DESC(1, 0x00, "RxBroad"),
+	MIB_DESC(1, 0x04, "RxPause"),
+	MIB_DESC(1, 0x08, "RxMulti"),
+	MIB_DESC(1, 0x0c, "RxFcsErr"),
+	MIB_DESC(1, 0x10, "RxAlignErr"),
+	MIB_DESC(1, 0x14, "RxRunt"),
+	MIB_DESC(1, 0x18, "RxFragment"),
+	MIB_DESC(1, 0x1c, "Rx64Byte"),
+	MIB_DESC(1, 0x20, "Rx128Byte"),
+	MIB_DESC(1, 0x24, "Rx256Byte"),
+	MIB_DESC(1, 0x28, "Rx512Byte"),
+	MIB_DESC(1, 0x2c, "Rx1024Byte"),
+	MIB_DESC(1, 0x30, "Rx1518Byte"),
+	MIB_DESC(1, 0x34, "RxMaxByte"),
+	MIB_DESC(1, 0x38, "RxTooLong"),
+	MIB_DESC(2, 0x3c, "RxGoodByte"),
+	MIB_DESC(2, 0x44, "RxBadByte"),
+	MIB_DESC(1, 0x4c, "RxOverFlow"),
+	MIB_DESC(1, 0x50, "Filtered"),
+	MIB_DESC(1, 0x54, "TxBroad"),
+	MIB_DESC(1, 0x58, "TxPause"),
+	MIB_DESC(1, 0x5c, "TxMulti"),
+	MIB_DESC(1, 0x60, "TxUnderRun"),
+	MIB_DESC(1, 0x64, "Tx64Byte"),
+	MIB_DESC(1, 0x68, "Tx128Byte"),
+	MIB_DESC(1, 0x6c, "Tx256Byte"),
+	MIB_DESC(1, 0x70, "Tx512Byte"),
+	MIB_DESC(1, 0x74, "Tx1024Byte"),
+	MIB_DESC(1, 0x78, "Tx1518Byte"),
+	MIB_DESC(1, 0x7c, "TxMaxByte"),
+	MIB_DESC(1, 0x80, "TxOverSize"),
+	MIB_DESC(2, 0x84, "TxByte"),
+	MIB_DESC(1, 0x8c, "TxCollision"),
+	MIB_DESC(1, 0x90, "TxAbortCol"),
+	MIB_DESC(1, 0x94, "TxMultiCol"),
+	MIB_DESC(1, 0x98, "TxSingleCol"),
+	MIB_DESC(1, 0x9c, "TxExcDefer"),
+	MIB_DESC(1, 0xa0, "TxDefer"),
+	MIB_DESC(1, 0xa4, "TxLateCol"),
+	MIB_DESC(1, 0xa8, "RXUnicast"),
+	MIB_DESC(1, 0xac, "TXUnicast"),
+};
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 7b4a698f092a..584fcd7fc355 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -422,4 +422,7 @@ struct qca8k_fdb {
 	u8 mac[6];
 };
 
+/* Common setup function */
+extern const struct qca8k_mib_desc ar8327_mib[];
+
 #endif /* __QCA8K_H */
-- 
2.36.1

Re: [net-next PATCH v3 03/14] net: dsa: qca8k: move mib struct to common code

[kernel test robot]

Hi Christian,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/intel-lab-lkp/linux/commits/Christian-Marangi/net-dsa-qca8k-code-split-for-qca8k/20220723-222259
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 502c6f8cedcce7889ccdefeb88ce36b39acd522f
config: x86_64-randconfig-a005 (https://download.01.org/0day-ci/archive/20220724/202207240750.2zRvF1Qu-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 12fbd2d377e396ad61bce56d71c98a1eb1bebfa9)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/intel-lab-lkp/linux/commit/21c0b9bac2dea29fbb83f818459e7d6f6c74e83e
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Christian-Marangi/net-dsa-qca8k-code-split-for-qca8k/20220723-222259
        git checkout 21c0b9bac2dea29fbb83f818459e7d6f6c74e83e
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/net/dsa/qca/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

>> drivers/net/dsa/qca/qca8k-8xxx.c:3208:9: error: initializer element is not a compile-time constant
           .ops = qca8xxx_ops,
                  ^~~~~~~~~~~
   drivers/net/dsa/qca/qca8k-8xxx.c:3214:9: error: initializer element is not a compile-time constant
           .ops = qca8xxx_ops,
                  ^~~~~~~~~~~
   drivers/net/dsa/qca/qca8k-8xxx.c:3220:9: error: initializer element is not a compile-time constant
           .ops = qca8xxx_ops,
                  ^~~~~~~~~~~
   3 errors generated.


vim +3208 drivers/net/dsa/qca/qca8k-8xxx.c

7f6400ae8410e85 drivers/net/dsa/qca/qca8k.c Christian Marangi 2022-07-23  3203  
f477d1c8bdbef4f drivers/net/dsa/qca8k.c     Christian Marangi 2021-10-14  3204  static const struct qca8k_match_data qca8327 = {
f477d1c8bdbef4f drivers/net/dsa/qca8k.c     Christian Marangi 2021-10-14  3205  	.id = QCA8K_ID_QCA8327,
f477d1c8bdbef4f drivers/net/dsa/qca8k.c     Christian Marangi 2021-10-14  3206  	.reduced_package = true,
c126f118b330ccf drivers/net/dsa/qca8k.c     Christian Marangi 2021-11-22  3207  	.mib_count = QCA8K_QCA832X_MIB_COUNT,
7f6400ae8410e85 drivers/net/dsa/qca/qca8k.c Christian Marangi 2022-07-23 @3208  	.ops = qca8xxx_ops,
f477d1c8bdbef4f drivers/net/dsa/qca8k.c     Christian Marangi 2021-10-14  3209  };
f477d1c8bdbef4f drivers/net/dsa/qca8k.c     Christian Marangi 2021-10-14  3210  

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[net-next PATCH v3 04/14] net: dsa: qca8k: move qca8k read/write/rmw and reg table to common code

[Christian Marangi]

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>
---
 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(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 249dc4f89beb..dbeea807de2f 100644
--- 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, u16 page)
 	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 @@ qca8k_regmap_update_bits(void *ctx, uint32_t reg, uint32_t mask, uint32_t write_
 	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,
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 7a63e96c8c08..880a49de22b1 100644
--- 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),
+};
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 584fcd7fc355..73ffef9f3cc2 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -424,5 +424,11 @@ 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 */
-- 
2.36.1

[net-next PATCH v3 05/14] net: dsa: qca8k: move qca8k bulk read/write helper to common code

[Christian Marangi]

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>
---
 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(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index dbeea807de2f..938cea84b017 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -342,43 +342,6 @@ qca8k_regmap_update_bits_eth(struct qca8k_priv *priv, u32 reg, u32 mask, u32 wri
 	return qca8k_write_eth(priv, reg, &val, sizeof(val));
 }
 
-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)
 {
@@ -3157,6 +3120,8 @@ 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 = {
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 880a49de22b1..2f96f1d4b921 100644
--- 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_readable_table = {
 	.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;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 73ffef9f3cc2..b9728daab5c7 100644
--- 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 {
@@ -431,4 +436,7 @@ 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);
 
+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 */
-- 
2.36.1

Re: [net-next PATCH v3 05/14] net: dsa: qca8k: move qca8k bulk read/write helper to common code

[Vladimir Oltean]

On Sat, Jul 23, 2022 at 04:18:36PM +0200, Christian Marangi wrote:
> 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>

[net-next PATCH v3 06/14] net: dsa: qca8k: move mib init function to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 37 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 36 +++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  4 ++++
 3 files changed, 40 insertions(+), 37 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 938cea84b017..3bd0c52f049e 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -441,15 +441,6 @@ static struct regmap_config qca8k_regmap_config = {
 	.cache_type = REGCACHE_NONE, /* Explicitly disable CACHE */
 };
 
-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)
 {
@@ -777,34 +768,6 @@ qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
 	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)
 {
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 2f96f1d4b921..9e9e3f0b7179 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -138,3 +138,39 @@ int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 
 	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;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index b9728daab5c7..606a4c76c4b3 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -430,6 +430,7 @@ 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);
@@ -439,4 +440,7 @@ 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);
+
 #endif /* __QCA8K_H */
-- 
2.36.1

Re: [net-next PATCH v3 06/14] net: dsa: qca8k: move mib init function to common code

[Vladimir Oltean]

On Sat, Jul 23, 2022 at 04:18:37PM +0200, Christian Marangi wrote:
> 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>
> ---
> diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
> index 2f96f1d4b921..9e9e3f0b7179 100644
> --- a/drivers/net/dsa/qca/qca8k-common.c
> +++ b/drivers/net/dsa/qca/qca8k-common.c
> @@ -138,3 +138,39 @@ int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
>  
>  	return 0;
>  }
> +
> +int
> +qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)

Can take up a single line.

> +{
> +	u32 val;
> +
> +	return regmap_read_poll_timeout(priv->regmap, reg, val, !(val & mask), 0,
> +				       QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC);
> +}

[net-next PATCH v3 07/14] net: dsa: qca8k: move port set status/eee/ethtool stats function to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 105 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 105 +++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  11 +++
 3 files changed, 116 insertions(+), 105 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 3bd0c52f049e..7042bf8d94c8 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -768,21 +768,6 @@ qca8k_vlan_del(struct qca8k_priv *priv, u8 port, u16 vid)
 	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)
@@ -1824,20 +1809,6 @@ static void qca8k_setup_pcs(struct qca8k_priv *priv, struct qca8k_pcs *qpcs,
 	qpcs->port = port;
 }
 
-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;
@@ -1927,82 +1898,6 @@ qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
 	return ret;
 }
 
-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)
 {
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 9e9e3f0b7179..369c763fbb5d 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -174,3 +174,108 @@ int qca8k_mib_init(struct qca8k_priv *priv)
 	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;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 606a4c76c4b3..9657c0a07bdd 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -431,6 +431,7 @@ 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);
@@ -443,4 +444,14 @@ 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);
 
+/* 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 */
-- 
2.36.1

[net-next PATCH v3 08/14] net: dsa: qca8k: move bridge functions to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 93 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 94 ++++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  9 +++
 3 files changed, 103 insertions(+), 93 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 7042bf8d94c8..c4fce50a91f7 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1898,99 +1898,6 @@ qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
 	return ret;
 }
 
-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 dsa_bridge bridge,
-				  bool *tx_fwd_offload,
-				  struct netlink_ext_ack *extack)
-{
-	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_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
-			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 dsa_bridge bridge)
-{
-	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_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
-			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)
 {
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 369c763fbb5d..754d3bee20cb 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -8,6 +8,7 @@
 
 #include <linux/netdevice.h>
 #include <net/dsa.h>
+#include <linux/if_bridge.h>
 
 #include "qca8k.h"
 
@@ -279,3 +280,96 @@ qca8k_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e)
 	/* 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 dsa_bridge bridge,
+			   bool *tx_fwd_offload,
+			   struct netlink_ext_ack *extack)
+{
+	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_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
+			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 dsa_bridge bridge)
+{
+	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_port_offloads_bridge(dsa_to_port(ds, i), &bridge))
+			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));
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 9657c0a07bdd..e16263fec91f 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -454,4 +454,13 @@ int qca8k_get_sset_count(struct dsa_switch *ds, int port, int sset);
 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 dsa_bridge bridge,
+			   bool *tx_fwd_offload,
+			   struct netlink_ext_ack *extack);
+void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
+			     struct dsa_bridge bridge);
+
 #endif /* __QCA8K_H */
-- 
2.36.1

[net-next PATCH v3 09/14] net: dsa: qca8k: move set age/MTU/port enable/disable functions to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 88 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 88 ++++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        | 12 ++++
 3 files changed, 100 insertions(+), 88 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index c4fce50a91f7..41f9198d1f25 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1908,94 +1908,6 @@ qca8k_port_fast_age(struct dsa_switch *ds, int port)
 	mutex_unlock(&priv->reg_mutex);
 }
 
-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)
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 754d3bee20cb..1f9249c7657b 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -373,3 +373,91 @@ void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 	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;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index e16263fec91f..40592b1c69a2 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -463,4 +463,16 @@ int qca8k_port_bridge_join(struct dsa_switch *ds, int port,
 void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 			     struct dsa_bridge bridge);
 
+/* 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 */
-- 
2.36.1

[net-next PATCH v3 10/14] net: dsa: qca8k: move port FDB/MDB function to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 306 ----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 309 ++++++++++++++++++++++++++++-
 drivers/net/dsa/qca/qca8k.h        |  25 ++-
 3 files changed, 329 insertions(+), 311 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 41f9198d1f25..52a9e0a2a532 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -441,217 +441,6 @@ static struct regmap_config qca8k_regmap_config = {
 	.cache_type = REGCACHE_NONE, /* Explicitly disable CACHE */
 };
 
-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)
 {
@@ -1898,101 +1687,6 @@ qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
 	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 dsa_db db)
-{
-	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 dsa_db db)
-{
-	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 dsa_db db)
-{
-	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 dsa_db db)
-{
-	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,
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 1f9249c7657b..557f73db7530 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -102,7 +102,7 @@ const struct regmap_access_table qca8k_readable_table = {
 };
 
 /* 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;
 
@@ -120,7 +120,7 @@ int qca8k_bulk_read(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 }
 
 /* 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 +149,216 @@ qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
 				       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;
@@ -374,6 +584,16 @@ void qca8k_port_bridge_leave(struct dsa_switch *ds, int port,
 		  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)
 {
@@ -461,3 +681,88 @@ qca8k_port_max_mtu(struct dsa_switch *ds, int port)
 {
 	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 dsa_db db)
+{
+	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 dsa_db db)
+{
+	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 dsa_db db)
+{
+	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 dsa_db db)
+{
+	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);
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 40592b1c69a2..f336aa929afc 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -438,11 +438,9 @@ 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);
 
-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);
@@ -473,6 +471,27 @@ 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 */
+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,
+		       struct dsa_db db);
+int qca8k_port_fdb_del(struct dsa_switch *ds, int port,
+		       const unsigned char *addr, u16 vid,
+		       struct dsa_db db);
+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,
+		       struct dsa_db db);
+int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
+		       const struct switchdev_obj_port_mdb *mdb,
+		       struct dsa_db db);
+
 #endif /* __QCA8K_H */
-- 
2.36.1

[net-next PATCH v3 11/14] net: dsa: qca8k: move port mirror functions to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 93 ------------------------------
 drivers/net/dsa/qca/qca8k-common.c | 93 ++++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  7 +++
 3 files changed, 100 insertions(+), 93 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 52a9e0a2a532..8beee566b97e 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1687,99 +1687,6 @@ qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
 	return ret;
 }
 
-static int
-qca8k_port_mirror_add(struct dsa_switch *ds, int port,
-		      struct dsa_mall_mirror_tc_entry *mirror,
-		      bool ingress, struct netlink_ext_ack *extack)
-{
-	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)
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 557f73db7530..92f715d8ed94 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -766,3 +766,96 @@ qca8k_port_mdb_del(struct dsa_switch *ds, int port,
 
 	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 netlink_ext_ack *extack)
+{
+	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);
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index f336aa929afc..02eda8f6c48e 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -494,4 +494,11 @@ int qca8k_port_mdb_del(struct dsa_switch *ds, int port,
 		       const struct switchdev_obj_port_mdb *mdb,
 		       struct dsa_db db);
 
+/* Common port mirror function */
+int qca8k_port_mirror_add(struct dsa_switch *ds, int port,
+			  struct dsa_mall_mirror_tc_entry *mirror,
+			  bool ingress, struct netlink_ext_ack *extack);
+void qca8k_port_mirror_del(struct dsa_switch *ds, int port,
+			   struct dsa_mall_mirror_tc_entry *mirror);
+
 #endif /* __QCA8K_H */
-- 
2.36.1

[net-next PATCH v3 12/14] net: dsa: qca8k: move port VLAN functions to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 181 ----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 182 ++++++++++++++++++++++++++++-
 drivers/net/dsa/qca/qca8k.h        |  10 +-
 3 files changed, 190 insertions(+), 183 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 8beee566b97e..d6494eac8c6d 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -441,122 +441,6 @@ static struct regmap_config qca8k_regmap_config = {
 	.cache_type = REGCACHE_NONE, /* Explicitly disable CACHE */
 };
 
-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)
@@ -1687,71 +1571,6 @@ qca8k_get_ethtool_stats_eth(struct dsa_switch *ds, int port, u64 *data)
 	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)
 {
 	struct qca8k_priv *priv = ds->priv;
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 92f715d8ed94..5d6eeda4c142 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -140,7 +140,7 @@ static int qca8k_bulk_write(struct qca8k_priv *priv, u32 reg, u32 *val, int len)
 	return 0;
 }
 
-int
+static int
 qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
 {
 	u32 val;
@@ -359,6 +359,121 @@ qca8k_fdb_search_and_del(struct qca8k_priv *priv, u8 port_mask,
 	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;
@@ -859,3 +974,68 @@ qca8k_port_mirror_del(struct dsa_switch *ds, int port,
 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;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index 02eda8f6c48e..d97fbbe12e2f 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -439,7 +439,6 @@ 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);
 
 /* 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 */
@@ -501,4 +500,13 @@ int qca8k_port_mirror_add(struct dsa_switch *ds, int port,
 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 */
-- 
2.36.1

[net-next PATCH v3 13/14] net: dsa: qca8k: move port LAG functions to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 168 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 168 +++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |   6 ++
 3 files changed, 174 insertions(+), 168 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index d6494eac8c6d..34d0c4cea68d 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1594,174 +1594,6 @@ qca8k_get_tag_protocol(struct dsa_switch *ds, int port,
 	return DSA_TAG_PROTO_QCA;
 }
 
-static bool
-qca8k_lag_can_offload(struct dsa_switch *ds, struct dsa_lag lag,
-		      struct netdev_lag_upper_info *info)
-{
-	struct dsa_port *dp;
-	int members = 0;
-
-	if (!lag.id)
-		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 dsa_lag lag,
-		     struct netdev_lag_upper_info *info)
-{
-	struct net_device *lag_dev = lag.dev;
-	struct qca8k_priv *priv = ds->priv;
-	bool unique_lag = true;
-	unsigned int i;
-	u32 hash = 0;
-
-	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 != lag.id && dsa_lag_by_id(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_dev, "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 dsa_lag lag, bool delete)
-{
-	struct qca8k_priv *priv = ds->priv;
-	int ret, id, i;
-	u32 val;
-
-	/* DSA LAG IDs are one-based, hardware is zero-based */
-	id = lag.id - 1;
-
-	/* 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 dsa_lag 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 dsa_lag 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)
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 5d6eeda4c142..02559990a097 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -1039,3 +1039,171 @@ qca8k_port_vlan_del(struct dsa_switch *ds, int port,
 
 	return ret;
 }
+
+static bool
+qca8k_lag_can_offload(struct dsa_switch *ds, struct dsa_lag lag,
+		      struct netdev_lag_upper_info *info)
+{
+	struct dsa_port *dp;
+	int members = 0;
+
+	if (!lag.id)
+		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 dsa_lag lag,
+		     struct netdev_lag_upper_info *info)
+{
+	struct net_device *lag_dev = lag.dev;
+	struct qca8k_priv *priv = ds->priv;
+	bool unique_lag = true;
+	unsigned int i;
+	u32 hash = 0;
+
+	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 != lag.id && dsa_lag_by_id(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_dev, "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 dsa_lag lag, bool delete)
+{
+	struct qca8k_priv *priv = ds->priv;
+	int ret, id, i;
+	u32 val;
+
+	/* DSA LAG IDs are one-based, hardware is zero-based */
+	id = lag.id - 1;
+
+	/* 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 dsa_lag 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 dsa_lag lag)
+{
+	return qca8k_lag_refresh_portmap(ds, port, lag, true);
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index d97fbbe12e2f..e6cf1ad68a9f 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -509,4 +509,10 @@ int qca8k_port_vlan_add(struct dsa_switch *ds, int port,
 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 dsa_lag lag,
+			struct netdev_lag_upper_info *info);
+int qca8k_port_lag_leave(struct dsa_switch *ds, int port,
+			 struct dsa_lag lag);
+
 #endif /* __QCA8K_H */
-- 
2.36.1

[net-next PATCH v3 14/14] net: dsa: qca8k: move read_switch_id function to common code

[Christian Marangi]

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>
---
 drivers/net/dsa/qca/qca8k-8xxx.c   | 30 -----------------------------
 drivers/net/dsa/qca/qca8k-common.c | 31 ++++++++++++++++++++++++++++++
 drivers/net/dsa/qca/qca8k.h        |  1 +
 3 files changed, 32 insertions(+), 30 deletions(-)

diff --git a/drivers/net/dsa/qca/qca8k-8xxx.c b/drivers/net/dsa/qca/qca8k-8xxx.c
index 34d0c4cea68d..9fed3b638739 100644
--- a/drivers/net/dsa/qca/qca8k-8xxx.c
+++ b/drivers/net/dsa/qca/qca8k-8xxx.c
@@ -1877,36 +1877,6 @@ static const struct dsa_switch_ops qca8k_switch_ops = {
 	.connect_tag_protocol	= qca8k_connect_tag_protocol,
 };
 
-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)
-		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 != data->id) {
-		dev_err(priv->dev, "Switch id detected %x but expected %x", id, data->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)
 {
diff --git a/drivers/net/dsa/qca/qca8k-common.c b/drivers/net/dsa/qca/qca8k-common.c
index 02559990a097..c33e9e11c322 100644
--- a/drivers/net/dsa/qca/qca8k-common.c
+++ b/drivers/net/dsa/qca/qca8k-common.c
@@ -8,6 +8,7 @@
 
 #include <linux/netdevice.h>
 #include <net/dsa.h>
+#include <linux/of_platform.h>
 #include <linux/if_bridge.h>
 
 #include "qca8k.h"
@@ -1207,3 +1208,33 @@ qca8k_port_lag_leave(struct dsa_switch *ds, int port,
 {
 	return qca8k_lag_refresh_portmap(ds, port, lag, true);
 }
+
+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)
+		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 != data->id) {
+		dev_err(priv->dev, "Switch id detected %x but expected %x", id, data->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;
+}
diff --git a/drivers/net/dsa/qca/qca8k.h b/drivers/net/dsa/qca/qca8k.h
index e6cf1ad68a9f..efbd3438aba8 100644
--- a/drivers/net/dsa/qca/qca8k.h
+++ b/drivers/net/dsa/qca/qca8k.h
@@ -432,6 +432,7 @@ 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);
+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);
-- 
2.36.1