netdev - [PATCH net-next] net: dsa: ar9331: provide own phylink MAC operations

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Message-Id: <E1rvIcZ-006bQc-0W@rmk-PC.armlinux.org.uk>
Date: Fri, 12 Apr 2024 16:15:19 +0100
From: "Russell King (Oracle)" <rmk+kernel@...linux.org.uk>
To: Andrew Lunn <andrew@...n.ch>,
	 Vladimir Oltean <olteanv@...il.com>
Cc: Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org
Subject: [PATCH net-next] net: dsa: ar9331: provide own phylink MAC operations

Convert ar9331 to provide its own phylink MAC operations, thus
avoiding the shim layer in DSA's port.c.

Signed-off-by: Russell King (Oracle) <rmk+kernel@...linux.org.uk>
---
 drivers/net/dsa/qca/ar9331.c | 37 +++++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 15 deletions(-)

diff --git a/drivers/net/dsa/qca/ar9331.c b/drivers/net/dsa/qca/ar9331.c
index 8d9d271ac3af..968cb81088bf 100644
--- a/drivers/net/dsa/qca/ar9331.c
+++ b/drivers/net/dsa/qca/ar9331.c
@@ -523,28 +523,30 @@ static void ar9331_sw_phylink_get_caps(struct dsa_switch *ds, int port,
 	}
 }
 
-static void ar9331_sw_phylink_mac_config(struct dsa_switch *ds, int port,
+static void ar9331_sw_phylink_mac_config(struct phylink_config *config,
 					 unsigned int mode,
 					 const struct phylink_link_state *state)
 {
-	struct ar9331_sw_priv *priv = ds->priv;
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ar9331_sw_priv *priv = dp->ds->priv;
 	struct regmap *regmap = priv->regmap;
 	int ret;
 
-	ret = regmap_update_bits(regmap, AR9331_SW_REG_PORT_STATUS(port),
+	ret = regmap_update_bits(regmap, AR9331_SW_REG_PORT_STATUS(dp->index),
 				 AR9331_SW_PORT_STATUS_LINK_EN |
 				 AR9331_SW_PORT_STATUS_FLOW_LINK_EN, 0);
 	if (ret)
 		dev_err_ratelimited(priv->dev, "%s: %i\n", __func__, ret);
 }
 
-static void ar9331_sw_phylink_mac_link_down(struct dsa_switch *ds, int port,
+static void ar9331_sw_phylink_mac_link_down(struct phylink_config *config,
 					    unsigned int mode,
 					    phy_interface_t interface)
 {
-	struct ar9331_sw_priv *priv = ds->priv;
-	struct ar9331_sw_port *p = &priv->port[port];
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ar9331_sw_priv *priv = dp->ds->priv;
 	struct regmap *regmap = priv->regmap;
+	int port = dp->index;
 	int ret;
 
 	ret = regmap_update_bits(regmap, AR9331_SW_REG_PORT_STATUS(port),
@@ -552,23 +554,24 @@ static void ar9331_sw_phylink_mac_link_down(struct dsa_switch *ds, int port,
 	if (ret)
 		dev_err_ratelimited(priv->dev, "%s: %i\n", __func__, ret);
 
-	cancel_delayed_work_sync(&p->mib_read);
+	cancel_delayed_work_sync(&priv->port[port].mib_read);
 }
 
-static void ar9331_sw_phylink_mac_link_up(struct dsa_switch *ds, int port,
+static void ar9331_sw_phylink_mac_link_up(struct phylink_config *config,
+					  struct phy_device *phydev,
 					  unsigned int mode,
 					  phy_interface_t interface,
-					  struct phy_device *phydev,
 					  int speed, int duplex,
 					  bool tx_pause, bool rx_pause)
 {
-	struct ar9331_sw_priv *priv = ds->priv;
-	struct ar9331_sw_port *p = &priv->port[port];
+	struct dsa_port *dp = dsa_phylink_to_port(config);
+	struct ar9331_sw_priv *priv = dp->ds->priv;
 	struct regmap *regmap = priv->regmap;
+	int port = dp->index;
 	u32 val;
 	int ret;
 
-	schedule_delayed_work(&p->mib_read, 0);
+	schedule_delayed_work(&priv->port[port].mib_read, 0);
 
 	val = AR9331_SW_PORT_STATUS_MAC_MASK;
 	switch (speed) {
@@ -684,14 +687,17 @@ static void ar9331_get_pause_stats(struct dsa_switch *ds, int port,
 	spin_unlock(&p->stats_lock);
 }
 
+static const struct phylink_mac_ops ar9331_phylink_mac_ops = {
+	.mac_config	= ar9331_sw_phylink_mac_config,
+	.mac_link_down	= ar9331_sw_phylink_mac_link_down,
+	.mac_link_up	= ar9331_sw_phylink_mac_link_up,
+};
+
 static const struct dsa_switch_ops ar9331_sw_ops = {
 	.get_tag_protocol	= ar9331_sw_get_tag_protocol,
 	.setup			= ar9331_sw_setup,
 	.port_disable		= ar9331_sw_port_disable,
 	.phylink_get_caps	= ar9331_sw_phylink_get_caps,
-	.phylink_mac_config	= ar9331_sw_phylink_mac_config,
-	.phylink_mac_link_down	= ar9331_sw_phylink_mac_link_down,
-	.phylink_mac_link_up	= ar9331_sw_phylink_mac_link_up,
 	.get_stats64		= ar9331_get_stats64,
 	.get_pause_stats	= ar9331_get_pause_stats,
 };
@@ -1059,6 +1065,7 @@ static int ar9331_sw_probe(struct mdio_device *mdiodev)
 	ds->priv = priv;
 	priv->ops = ar9331_sw_ops;
 	ds->ops = &priv->ops;
+	ds->phylink_mac_ops = &ar9331_phylink_mac_ops;
 	dev_set_drvdata(&mdiodev->dev, priv);
 
 	for (i = 0; i < ARRAY_SIZE(priv->port); i++) {
-- 
2.30.2