[PATCH 5.11 216/254] net: phy: introduce phydev->port

[Greg Kroah-Hartman]

From: Michael Walle <michael@xxxxxxxx>

[ Upstream commit 4217a64e18a1647a0dbc68cb3169a5a06f054ec8 ]

At the moment, PORT_MII is reported in the ethtool ops. This is odd
because it is an interface between the MAC and the PHY and no external
port. Some network card drivers will overwrite the port to twisted pair
or fiber, though. Even worse, the MDI/MDIX setting is only used by
ethtool if the port is twisted pair.

Set the port to PORT_TP by default because most PHY drivers are copper
ones. If there is fibre support and it is enabled, the PHY driver will
set it to PORT_FIBRE.

This will change reporting PORT_MII to either PORT_TP or PORT_FIBRE;
except for the genphy fallback driver.

Suggested-by: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: Michael Walle <michael@xxxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/net/phy/broadcom.c   |  2 ++
 drivers/net/phy/dp83822.c    |  3 +++
 drivers/net/phy/dp83869.c    |  4 ++++
 drivers/net/phy/lxt.c        |  1 +
 drivers/net/phy/marvell.c    |  1 +
 drivers/net/phy/marvell10g.c |  2 ++
 drivers/net/phy/micrel.c     | 14 +++++++++++---
 drivers/net/phy/phy.c        |  2 +-
 drivers/net/phy/phy_device.c |  9 +++++++++
 include/linux/phy.h          |  2 ++
 10 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index ec45a1608309..48024ac85980 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -505,6 +505,8 @@ static int bcm54616s_probe(struct phy_device *phydev)
 		 */
 		if (!(val & BCM54616S_100FX_MODE))
 			phydev->dev_flags |= PHY_BCM_FLAGS_MODE_1000BX;
+
+		phydev->port = PORT_FIBRE;
 	}
 
 	return 0;
diff --git a/drivers/net/phy/dp83822.c b/drivers/net/phy/dp83822.c
index 423952cb9e1c..f7a2ec150e54 100644
--- a/drivers/net/phy/dp83822.c
+++ b/drivers/net/phy/dp83822.c
@@ -555,6 +555,9 @@ static int dp83822_probe(struct phy_device *phydev)
 
 	dp83822_of_init(phydev);
 
+	if (dp83822->fx_enabled)
+		phydev->port = PORT_FIBRE;
+
 	return 0;
 }
 
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c
index b30bc142d82e..755220c6451f 100644
--- a/drivers/net/phy/dp83869.c
+++ b/drivers/net/phy/dp83869.c
@@ -855,6 +855,10 @@ static int dp83869_probe(struct phy_device *phydev)
 	if (ret)
 		return ret;
 
+	if (dp83869->mode == DP83869_RGMII_100_BASE ||
+	    dp83869->mode == DP83869_RGMII_1000_BASE)
+		phydev->port = PORT_FIBRE;
+
 	return dp83869_config_init(phydev);
 }
 
diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c
index 0ee23d29c0d4..bde3356a2f86 100644
--- a/drivers/net/phy/lxt.c
+++ b/drivers/net/phy/lxt.c
@@ -292,6 +292,7 @@ static int lxt973_probe(struct phy_device *phydev)
 		phy_write(phydev, MII_BMCR, val);
 		/* Remember that the port is in fiber mode. */
 		phydev->priv = lxt973_probe;
+		phydev->port = PORT_FIBRE;
 	} else {
 		phydev->priv = NULL;
 	}
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 620052c023a5..2afef45d15b1 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -1552,6 +1552,7 @@ static int marvell_read_status_page(struct phy_device *phydev, int page)
 	phydev->asym_pause = 0;
 	phydev->speed = SPEED_UNKNOWN;
 	phydev->duplex = DUPLEX_UNKNOWN;
+	phydev->port = fiber ? PORT_FIBRE : PORT_TP;
 
 	if (phydev->autoneg == AUTONEG_ENABLE)
 		err = marvell_read_status_page_an(phydev, fiber, status);
diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index 1901ba277413..b1bb9b8e1e4e 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -631,6 +631,7 @@ static int mv3310_read_status_10gbaser(struct phy_device *phydev)
 	phydev->link = 1;
 	phydev->speed = SPEED_10000;
 	phydev->duplex = DUPLEX_FULL;
+	phydev->port = PORT_FIBRE;
 
 	return 0;
 }
@@ -690,6 +691,7 @@ static int mv3310_read_status_copper(struct phy_device *phydev)
 
 	phydev->duplex = cssr1 & MV_PCS_CSSR1_DUPLEX_FULL ?
 			 DUPLEX_FULL : DUPLEX_HALF;
+	phydev->port = PORT_TP;
 	phydev->mdix = cssr1 & MV_PCS_CSSR1_MDIX ?
 		       ETH_TP_MDI_X : ETH_TP_MDI;
 
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 57f8021b70af..a6c691938f94 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -341,14 +341,19 @@ static int kszphy_config_init(struct phy_device *phydev)
 	return kszphy_config_reset(phydev);
 }
 
+static int ksz8041_fiber_mode(struct phy_device *phydev)
+{
+	struct device_node *of_node = phydev->mdio.dev.of_node;
+
+	return of_property_read_bool(of_node, "micrel,fiber-mode");
+}
+
 static int ksz8041_config_init(struct phy_device *phydev)
 {
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
 
-	struct device_node *of_node = phydev->mdio.dev.of_node;
-
 	/* Limit supported and advertised modes in fiber mode */
-	if (of_property_read_bool(of_node, "micrel,fiber-mode")) {
+	if (ksz8041_fiber_mode(phydev)) {
 		phydev->dev_flags |= MICREL_PHY_FXEN;
 		linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, mask);
 		linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, mask);
@@ -1176,6 +1181,9 @@ static int kszphy_probe(struct phy_device *phydev)
 		}
 	}
 
+	if (ksz8041_fiber_mode(phydev))
+		phydev->port = PORT_FIBRE;
+
 	/* Support legacy board-file configuration */
 	if (phydev->dev_flags & MICREL_PHY_50MHZ_CLK) {
 		priv->rmii_ref_clk_sel = true;
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index b79c4068ee61..c93c295db3dc 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -310,7 +310,7 @@ void phy_ethtool_ksettings_get(struct phy_device *phydev,
 	if (phydev->interface == PHY_INTERFACE_MODE_MOCA)
 		cmd->base.port = PORT_BNC;
 	else
-		cmd->base.port = PORT_MII;
+		cmd->base.port = phydev->port;
 	cmd->base.transceiver = phy_is_internal(phydev) ?
 				XCVR_INTERNAL : XCVR_EXTERNAL;
 	cmd->base.phy_address = phydev->mdio.addr;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 1c6ae845e03f..d2fd54e4c612 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -576,6 +576,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id,
 	dev->pause = 0;
 	dev->asym_pause = 0;
 	dev->link = 0;
+	dev->port = PORT_TP;
 	dev->interface = PHY_INTERFACE_MODE_GMII;
 
 	dev->autoneg = AUTONEG_ENABLE;
@@ -1382,6 +1383,14 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
 
 	phydev->state = PHY_READY;
 
+	/* Port is set to PORT_TP by default and the actual PHY driver will set
+	 * it to different value depending on the PHY configuration. If we have
+	 * the generic PHY driver we can't figure it out, thus set the old
+	 * legacy PORT_MII value.
+	 */
+	if (using_genphy)
+		phydev->port = PORT_MII;
+
 	/* Initial carrier state is off as the phy is about to be
 	 * (re)initialized.
 	 */
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 9effb511acde..d0e64f3b53b9 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -499,6 +499,7 @@ struct macsec_ops;
  *
  * @speed: Current link speed
  * @duplex: Current duplex
+ * @port: Current port
  * @pause: Current pause
  * @asym_pause: Current asymmetric pause
  * @supported: Combined MAC/PHY supported linkmodes
@@ -577,6 +578,7 @@ struct phy_device {
 	 */
 	int speed;
 	int duplex;
+	int port;
 	int pause;
 	int asym_pause;
 	u8 master_slave_get;
-- 
2.30.1