Merge branch 'RollBall-Hilink-Turris-10G-copper-SFP-support'

Marek Behún says:

====================
RollBall / Hilink / Turris 10G copper SFP support

I am resurrecting my attempt to add support for RollBall / Hilink /
Turris 10G copper SFPs modules.

The modules contain Marvell 88X3310 PHY, which can communicate with
the system via sgmii, 2500base-x, 5gbase-r, 10gbase-r or usxgmii mode.

Some of the patches I've taken from Russell King's net-queue [1]
(with some rebasing).

The important change from my previous attempts are:
- I am including the changes needed to phylink and marvell10g driver,
  so that the 88X3310 PHY is configured to use PHY modes supported by
  the host (the PHY defaults to use 10gbase-r only on host's side)
- I have changed the patch that informs phylib about the interfaces
  supported by the host (patch 5 of this series): it now fills in the
  phydev->host_interfaces member only when connecting a PHY that is
  inside a SFP module. This may change in the future.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 16 insertions, 3 deletions

diff --git a/include/linux/mdio/mdio-i2c.h b/include/linux/mdio/mdio-i2c.h
index b1d27f7cd23f..65b550a6fc32 100644
--- a/include/linux/mdio/mdio-i2c.h
+++ b/include/linux/mdio/mdio-i2c.h
@@ -11,6 +11,14 @@ struct device;
 struct i2c_adapter;
 struct mii_bus;
 
-struct mii_bus *mdio_i2c_alloc(struct device *parent, struct i2c_adapter *i2c);
+enum mdio_i2c_proto {
+	MDIO_I2C_NONE,
+	MDIO_I2C_MARVELL_C22,
+	MDIO_I2C_C45,
+	MDIO_I2C_ROLLBALL,
+};
+
+struct mii_bus *mdio_i2c_alloc(struct device *parent, struct i2c_adapter *i2c,
+			       enum mdio_i2c_proto protocol);
 
 #endif
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 9c66f357f489..d65fc76fe0ae 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -571,6 +571,7 @@ struct macsec_ops;
  * @advertising: Currently advertised linkmodes
  * @adv_old: Saved advertised while power saving for WoL
  * @lp_advertising: Current link partner advertised linkmodes
+ * @host_interfaces: PHY interface modes supported by host
  * @eee_broken_modes: Energy efficient ethernet modes which should be prohibited
  * @autoneg: Flag autoneg being used
  * @rate_matching: Current rate matching mode
@@ -670,6 +671,9 @@ struct phy_device {
 	/* used with phy_speed_down */
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(adv_old);
 
+	/* Host supported PHY interface types. Should be ignored if empty. */
+	DECLARE_PHY_INTERFACE_MASK(host_interfaces);
+
 	/* Energy efficient ethernet modes which should be prohibited */
 	u32 eee_broken_modes;
 
diff --git a/include/linux/sfp.h b/include/linux/sfp.h
index 302094b855fb..d1f343853b6c 100644
--- a/include/linux/sfp.h
+++ b/include/linux/sfp.h
@@ -535,7 +535,7 @@ int sfp_parse_port(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
 		   unsigned long *support);
 bool sfp_may_have_phy(struct sfp_bus *bus, const struct sfp_eeprom_id *id);
 void sfp_parse_support(struct sfp_bus *bus, const struct sfp_eeprom_id *id,
-		       unsigned long *support);
+		       unsigned long *support, unsigned long *interfaces);
 phy_interface_t sfp_select_interface(struct sfp_bus *bus,
 				     unsigned long *link_modes);
 
@@ -568,7 +568,8 @@ static inline bool sfp_may_have_phy(struct sfp_bus *bus,
 
 static inline void sfp_parse_support(struct sfp_bus *bus,
 				     const struct sfp_eeprom_id *id,
-				     unsigned long *support)
+				     unsigned long *support,
+				     unsigned long *interfaces)
 {
 }