[PATCH net-next v2 1/2] net: dsa: microchip: split adjust_link() in phylink_mac_link_{up|down}()

[PATCH net-next v2 1/2] net: dsa: microchip: split adjust_link() in phylink_mac_link_{up|down}()

[Codrin Ciubotariu]

The DSA subsystem moved to phylink and adjust_link() became deprecated in
the process. This patch removes adjust_link from the KSZ DSA switches and
adds phylink_mac_link_up() and phylink_mac_link_down().

Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>
---

Changes in v2:
 - added reviewed-by tag;

 drivers/net/dsa/microchip/ksz8795.c    |  3 ++-
 drivers/net/dsa/microchip/ksz9477.c    |  3 ++-
 drivers/net/dsa/microchip/ksz_common.c | 32 ++++++++++++++++----------
 drivers/net/dsa/microchip/ksz_common.h |  7 ++++--
 4 files changed, 29 insertions(+), 16 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 47d65b77caf7..862306a9db2c 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1111,7 +1111,8 @@ static const struct dsa_switch_ops ksz8795_switch_ops = {
 	.setup			= ksz8795_setup,
 	.phy_read		= ksz_phy_read16,
 	.phy_write		= ksz_phy_write16,
-	.adjust_link		= ksz_adjust_link,
+	.phylink_mac_link_down	= ksz_mac_link_down,
+	.phylink_mac_link_up	= ksz_mac_link_up,
 	.port_enable		= ksz_enable_port,
 	.port_disable		= ksz_disable_port,
 	.get_strings		= ksz8795_get_strings,
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 9a51b8a4de5d..9e4bdd950194 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -1399,7 +1399,8 @@ static const struct dsa_switch_ops ksz9477_switch_ops = {
 	.setup			= ksz9477_setup,
 	.phy_read		= ksz9477_phy_read16,
 	.phy_write		= ksz9477_phy_write16,
-	.adjust_link		= ksz_adjust_link,
+	.phylink_mac_link_down	= ksz_mac_link_down,
+	.phylink_mac_link_up	= ksz_mac_link_up,
 	.port_enable		= ksz_enable_port,
 	.port_disable		= ksz_disable_port,
 	.get_strings		= ksz9477_get_strings,
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index fd1d6676ae4f..55ceaf00ece1 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -135,26 +135,34 @@ int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val)
 }
 EXPORT_SYMBOL_GPL(ksz_phy_write16);
 
-void ksz_adjust_link(struct dsa_switch *ds, int port,
-		     struct phy_device *phydev)
+void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
+		       phy_interface_t interface)
 {
 	struct ksz_device *dev = ds->priv;
 	struct ksz_port *p = &dev->ports[port];
 
 	/* Read all MIB counters when the link is going down. */
-	if (!phydev->link) {
-		p->read = true;
-		schedule_delayed_work(&dev->mib_read, 0);
-	}
+	p->read = true;
+	schedule_delayed_work(&dev->mib_read, 0);
+
+	mutex_lock(&dev->dev_mutex);
+	dev->live_ports &= ~(1 << port);
+	mutex_unlock(&dev->dev_mutex);
+}
+EXPORT_SYMBOL_GPL(ksz_mac_link_down);
+
+void ksz_mac_link_up(struct dsa_switch *ds, int port, unsigned int mode,
+		     phy_interface_t interface, struct phy_device *phydev,
+		     int speed, int duplex, bool tx_pause, bool rx_pause)
+{
+	struct ksz_device *dev = ds->priv;
+
+	/* Remember which port is connected and active. */
 	mutex_lock(&dev->dev_mutex);
-	if (!phydev->link)
-		dev->live_ports &= ~(1 << port);
-	else
-		/* Remember which port is connected and active. */
-		dev->live_ports |= (1 << port) & dev->on_ports;
+	dev->live_ports |= (1 << port) & dev->on_ports;
 	mutex_unlock(&dev->dev_mutex);
 }
-EXPORT_SYMBOL_GPL(ksz_adjust_link);
+EXPORT_SYMBOL_GPL(ksz_mac_link_up);
 
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset)
 {
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index f2c9bb68fd33..c0224dd0cf8a 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -159,8 +159,11 @@ void ksz_init_mib_timer(struct ksz_device *dev);
 
 int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg);
 int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val);
-void ksz_adjust_link(struct dsa_switch *ds, int port,
-		     struct phy_device *phydev);
+void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
+		       phy_interface_t interface);
+void ksz_mac_link_up(struct dsa_switch *ds, int port, unsigned int mode,
+		     phy_interface_t interface, struct phy_device *phydev,
+		     int speed, int duplex, bool tx_pause, bool rx_pause);
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
 void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf);
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
-- 
2.25.1

[PATCH net-next v2 2/2] net: dsa: microchip: remove unused private members

[Codrin Ciubotariu]

Private structure members live_ports, on_ports, rx_ports, tx_ports are
initialized but not used anywhere. Let's remove them.

Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
---

Changes in v2:
 - new patch, there was no v1

 drivers/net/dsa/microchip/ksz8795.c    | 18 --------------
 drivers/net/dsa/microchip/ksz9477.c    | 23 ++----------------
 drivers/net/dsa/microchip/ksz_common.c | 33 --------------------------
 drivers/net/dsa/microchip/ksz_common.h |  8 -------
 4 files changed, 2 insertions(+), 80 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index 862306a9db2c..4202411627f1 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -731,15 +731,6 @@ static void ksz8795_port_stp_state_set(struct dsa_switch *ds, int port,
 
 	ksz_pwrite8(dev, port, P_STP_CTRL, data);
 	p->stp_state = state;
-	if (data & PORT_RX_ENABLE)
-		dev->rx_ports |= BIT(port);
-	else
-		dev->rx_ports &= ~BIT(port);
-	if (data & PORT_TX_ENABLE)
-		dev->tx_ports |= BIT(port);
-	else
-		dev->tx_ports &= ~BIT(port);
-
 	/* Port membership may share register with STP state. */
 	if (member >= 0 && member != p->member)
 		ksz8795_cfg_port_member(dev, port, (u8)member);
@@ -976,15 +967,8 @@ static void ksz8795_port_setup(struct ksz_device *dev, int port, bool cpu_port)
 		p->phydev.duplex = 1;
 
 		member = dev->port_mask;
-		dev->on_ports = dev->host_mask;
-		dev->live_ports = dev->host_mask;
 	} else {
 		member = dev->host_mask | p->vid_member;
-		dev->on_ports |= BIT(port);
-
-		/* Link was detected before port is enabled. */
-		if (p->phydev.link)
-			dev->live_ports |= BIT(port);
 	}
 	ksz8795_cfg_port_member(dev, port, member);
 }
@@ -1112,9 +1096,7 @@ static const struct dsa_switch_ops ksz8795_switch_ops = {
 	.phy_read		= ksz_phy_read16,
 	.phy_write		= ksz_phy_write16,
 	.phylink_mac_link_down	= ksz_mac_link_down,
-	.phylink_mac_link_up	= ksz_mac_link_up,
 	.port_enable		= ksz_enable_port,
-	.port_disable		= ksz_disable_port,
 	.get_strings		= ksz8795_get_strings,
 	.get_ethtool_stats	= ksz_get_ethtool_stats,
 	.get_sset_count		= ksz_sset_count,
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 9e4bdd950194..b939e0b82aa0 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -452,15 +452,6 @@ static void ksz9477_port_stp_state_set(struct dsa_switch *ds, int port,
 	ksz_pwrite8(dev, port, P_STP_CTRL, data);
 	p->stp_state = state;
 	mutex_lock(&dev->dev_mutex);
-	if (data & PORT_RX_ENABLE)
-		dev->rx_ports |= (1 << port);
-	else
-		dev->rx_ports &= ~(1 << port);
-	if (data & PORT_TX_ENABLE)
-		dev->tx_ports |= (1 << port);
-	else
-		dev->tx_ports &= ~(1 << port);
-
 	/* Port membership may share register with STP state. */
 	if (member >= 0 && member != p->member)
 		ksz9477_cfg_port_member(dev, port, (u8)member);
@@ -1268,18 +1259,10 @@ static void ksz9477_port_setup(struct ksz_device *dev, int port, bool cpu_port)
 		p->phydev.duplex = 1;
 	}
 	mutex_lock(&dev->dev_mutex);
-	if (cpu_port) {
+	if (cpu_port)
 		member = dev->port_mask;
-		dev->on_ports = dev->host_mask;
-		dev->live_ports = dev->host_mask;
-	} else {
+	else
 		member = dev->host_mask | p->vid_member;
-		dev->on_ports |= (1 << port);
-
-		/* Link was detected before port is enabled. */
-		if (p->phydev.link)
-			dev->live_ports |= (1 << port);
-	}
 	mutex_unlock(&dev->dev_mutex);
 	ksz9477_cfg_port_member(dev, port, member);
 
@@ -1400,9 +1383,7 @@ static const struct dsa_switch_ops ksz9477_switch_ops = {
 	.phy_read		= ksz9477_phy_read16,
 	.phy_write		= ksz9477_phy_write16,
 	.phylink_mac_link_down	= ksz_mac_link_down,
-	.phylink_mac_link_up	= ksz_mac_link_up,
 	.port_enable		= ksz_enable_port,
-	.port_disable		= ksz_disable_port,
 	.get_strings		= ksz9477_get_strings,
 	.get_ethtool_stats	= ksz_get_ethtool_stats,
 	.get_sset_count		= ksz_sset_count,
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 55ceaf00ece1..74f2216989ee 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -144,26 +144,9 @@ void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
 	/* Read all MIB counters when the link is going down. */
 	p->read = true;
 	schedule_delayed_work(&dev->mib_read, 0);
-
-	mutex_lock(&dev->dev_mutex);
-	dev->live_ports &= ~(1 << port);
-	mutex_unlock(&dev->dev_mutex);
 }
 EXPORT_SYMBOL_GPL(ksz_mac_link_down);
 
-void ksz_mac_link_up(struct dsa_switch *ds, int port, unsigned int mode,
-		     phy_interface_t interface, struct phy_device *phydev,
-		     int speed, int duplex, bool tx_pause, bool rx_pause)
-{
-	struct ksz_device *dev = ds->priv;
-
-	/* Remember which port is connected and active. */
-	mutex_lock(&dev->dev_mutex);
-	dev->live_ports |= (1 << port) & dev->on_ports;
-	mutex_unlock(&dev->dev_mutex);
-}
-EXPORT_SYMBOL_GPL(ksz_mac_link_up);
-
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset)
 {
 	struct ksz_device *dev = ds->priv;
@@ -377,22 +360,6 @@ int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy)
 }
 EXPORT_SYMBOL_GPL(ksz_enable_port);
 
-void ksz_disable_port(struct dsa_switch *ds, int port)
-{
-	struct ksz_device *dev = ds->priv;
-
-	if (!dsa_is_user_port(ds, port))
-		return;
-
-	dev->on_ports &= ~(1 << port);
-	dev->live_ports &= ~(1 << port);
-
-	/* port_stp_state_set() will be called after to disable the port so
-	 * there is no need to do anything.
-	 */
-}
-EXPORT_SYMBOL_GPL(ksz_disable_port);
-
 struct ksz_device *ksz_switch_alloc(struct device *base, void *priv)
 {
 	struct dsa_switch *ds;
diff --git a/drivers/net/dsa/microchip/ksz_common.h b/drivers/net/dsa/microchip/ksz_common.h
index c0224dd0cf8a..f7d92c1656b8 100644
--- a/drivers/net/dsa/microchip/ksz_common.h
+++ b/drivers/net/dsa/microchip/ksz_common.h
@@ -84,10 +84,6 @@ struct ksz_device {
 	unsigned long mib_read_interval;
 	u16 br_member;
 	u16 member;
-	u16 live_ports;
-	u16 on_ports;			/* ports enabled by DSA */
-	u16 rx_ports;
-	u16 tx_ports;
 	u16 mirror_rx;
 	u16 mirror_tx;
 	u32 features;			/* chip specific features */
@@ -161,9 +157,6 @@ int ksz_phy_read16(struct dsa_switch *ds, int addr, int reg);
 int ksz_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val);
 void ksz_mac_link_down(struct dsa_switch *ds, int port, unsigned int mode,
 		       phy_interface_t interface);
-void ksz_mac_link_up(struct dsa_switch *ds, int port, unsigned int mode,
-		     phy_interface_t interface, struct phy_device *phydev,
-		     int speed, int duplex, bool tx_pause, bool rx_pause);
 int ksz_sset_count(struct dsa_switch *ds, int port, int sset);
 void ksz_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *buf);
 int ksz_port_bridge_join(struct dsa_switch *ds, int port,
@@ -182,7 +175,6 @@ void ksz_port_mdb_add(struct dsa_switch *ds, int port,
 int ksz_port_mdb_del(struct dsa_switch *ds, int port,
 		     const struct switchdev_obj_port_mdb *mdb);
 int ksz_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy);
-void ksz_disable_port(struct dsa_switch *ds, int port);
 
 /* Common register access functions */
 
-- 
2.25.1

Re: [PATCH net-next v2 2/2] net: dsa: microchip: remove unused private members

[David Miller]

From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Date: Thu, 2 Jul 2020 18:17:24 +0300

> Private structure members live_ports, on_ports, rx_ports, tx_ports are
> initialized but not used anywhere. Let's remove them.
> 
> Suggested-by: Russell King <rmk+kernel@armlinux.org.uk>
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>

Applied.

Re: [PATCH net-next v2 1/2] net: dsa: microchip: split adjust_link() in phylink_mac_link_{up|down}()

[David Miller]

From: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Date: Thu, 2 Jul 2020 18:17:23 +0300

> The DSA subsystem moved to phylink and adjust_link() became deprecated in
> the process. This patch removes adjust_link from the KSZ DSA switches and
> adds phylink_mac_link_up() and phylink_mac_link_down().
> 
> Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
> Reviewed-by: Russell King <rmk+kernel@armlinux.org.uk>

Applied.