OpenWrt – Rev 4

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From c47beb7e3f8575dfd7d58240a72c4e4e66ce5449 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 14 Apr 2017 15:26:32 +0100
Subject: sfp: move module eeprom ethtool access into netdev core ethtool

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/marvell/mvneta.c | 18 ------------------
 drivers/net/phy/phylink.c             | 28 ----------------------------
 drivers/net/phy/sfp-bus.c             |  6 ++----
 include/linux/netdevice.h             |  2 ++
 include/linux/phylink.h               |  3 ---
 net/core/ethtool.c                    |  7 +++++++
 6 files changed, 11 insertions(+), 53 deletions(-)

--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -4046,22 +4046,6 @@ static int mvneta_ethtool_set_wol(struct
        return ret;
 }
 
-static int mvneta_ethtool_get_module_info(struct net_device *dev,
-                                         struct ethtool_modinfo *modinfo)
-{
-       struct mvneta_port *pp = netdev_priv(dev);
-
-       return phylink_ethtool_get_module_info(pp->phylink, modinfo);
-}
-
-static int mvneta_ethtool_get_module_eeprom(struct net_device *dev,
-                                           struct ethtool_eeprom *ee, u8 *buf)
-{
-       struct mvneta_port *pp = netdev_priv(dev);
-
-       return phylink_ethtool_get_module_eeprom(pp->phylink, ee, buf);
-}
-
 static int mvneta_ethtool_get_eee(struct net_device *dev,
                                  struct ethtool_eee *eee)
 {
@@ -4146,8 +4130,6 @@ static const struct ethtool_ops mvneta_e
        .set_link_ksettings = mvneta_ethtool_set_link_ksettings,
        .get_wol        = mvneta_ethtool_get_wol,
        .set_wol        = mvneta_ethtool_set_wol,
-       .get_module_info = mvneta_ethtool_get_module_info,
-       .get_module_eeprom = mvneta_ethtool_get_module_eeprom,
        .get_eee        = mvneta_ethtool_get_eee,
        .set_eee        = mvneta_ethtool_set_eee,
 };
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1042,34 +1042,6 @@ int phylink_ethtool_set_pauseparam(struc
 }
 EXPORT_SYMBOL_GPL(phylink_ethtool_set_pauseparam);
 
-int phylink_ethtool_get_module_info(struct phylink *pl,
-                                   struct ethtool_modinfo *modinfo)
-{
-       int ret = -EOPNOTSUPP;
-
-       WARN_ON(!lockdep_rtnl_is_held());
-
-       if (pl->sfp_bus)
-               ret = sfp_get_module_info(pl->sfp_bus, modinfo);
-
-       return ret;
-}
-EXPORT_SYMBOL_GPL(phylink_ethtool_get_module_info);
-
-int phylink_ethtool_get_module_eeprom(struct phylink *pl,
-                                     struct ethtool_eeprom *ee, u8 *buf)
-{
-       int ret = -EOPNOTSUPP;
-
-       WARN_ON(!lockdep_rtnl_is_held());
-
-       if (pl->sfp_bus)
-               ret = sfp_get_module_eeprom(pl->sfp_bus, ee, buf);
-
-       return ret;
-}
-EXPORT_SYMBOL_GPL(phylink_ethtool_get_module_eeprom);
-
 int phylink_init_eee(struct phylink *pl, bool clk_stop_enable)
 {
        int ret = -EPROTONOSUPPORT;
--- a/drivers/net/phy/sfp-bus.c
+++ b/drivers/net/phy/sfp-bus.c
@@ -278,6 +278,7 @@ static int sfp_register_bus(struct sfp_b
        }
        if (bus->started)
                bus->socket_ops->start(bus->sfp);
+       bus->netdev->sfp_bus = bus;
        bus->registered = true;
        return 0;
 }
@@ -292,14 +293,13 @@ static void sfp_unregister_bus(struct sf
                if (bus->phydev && ops && ops->disconnect_phy)
                        ops->disconnect_phy(bus->upstream);
        }
+       bus->netdev->sfp_bus = NULL;
        bus->registered = false;
 }
 
 
 int sfp_get_module_info(struct sfp_bus *bus, struct ethtool_modinfo *modinfo)
 {
-       if (!bus->registered)
-               return -ENOIOCTLCMD;
        return bus->socket_ops->module_info(bus->sfp, modinfo);
 }
 EXPORT_SYMBOL_GPL(sfp_get_module_info);
@@ -307,8 +307,6 @@ EXPORT_SYMBOL_GPL(sfp_get_module_info);
 int sfp_get_module_eeprom(struct sfp_bus *bus, struct ethtool_eeprom *ee,
        u8 *data)
 {
-       if (!bus->registered)
-               return -ENOIOCTLCMD;
        return bus->socket_ops->module_eeprom(bus->sfp, ee, data);
 }
 EXPORT_SYMBOL_GPL(sfp_get_module_eeprom);
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -57,6 +57,7 @@ struct device;
 struct phy_device;
 struct dsa_switch_tree;
 
+struct sfp_bus;
 /* 802.11 specific */
 struct wireless_dev;
 /* 802.15.4 specific */
@@ -1932,6 +1933,7 @@ struct net_device {
        struct netprio_map __rcu *priomap;
 #endif
        struct phy_device       *phydev;
+       struct sfp_bus          *sfp_bus;
        struct lock_class_key   *qdisc_tx_busylock;
        struct lock_class_key   *qdisc_running_key;
        bool                    proto_down;
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -125,9 +125,6 @@ void phylink_ethtool_get_pauseparam(stru
                                    struct ethtool_pauseparam *);
 int phylink_ethtool_set_pauseparam(struct phylink *,
                                   struct ethtool_pauseparam *);
-int phylink_ethtool_get_module_info(struct phylink *, struct ethtool_modinfo *);
-int phylink_ethtool_get_module_eeprom(struct phylink *,
-                                     struct ethtool_eeprom *, u8 *);
 int phylink_init_eee(struct phylink *, bool);
 int phylink_get_eee_err(struct phylink *);
 int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -22,6 +22,7 @@
 #include <linux/bitops.h>
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
+#include <linux/sfp.h>
 #include <linux/slab.h>
 #include <linux/rtnetlink.h>
 #include <linux/sched/signal.h>
@@ -2190,6 +2191,9 @@ static int __ethtool_get_module_info(str
        const struct ethtool_ops *ops = dev->ethtool_ops;
        struct phy_device *phydev = dev->phydev;
 
+       if (dev->sfp_bus)
+               return sfp_get_module_info(dev->sfp_bus, modinfo);
+
        if (phydev && phydev->drv && phydev->drv->module_info)
                return phydev->drv->module_info(phydev, modinfo);
 
@@ -2224,6 +2228,9 @@ static int __ethtool_get_module_eeprom(s
        const struct ethtool_ops *ops = dev->ethtool_ops;
        struct phy_device *phydev = dev->phydev;
 
+       if (dev->sfp_bus)
+               return sfp_get_module_eeprom(dev->sfp_bus, ee, data);
+
        if (phydev && phydev->drv && phydev->drv->module_eeprom)
                return phydev->drv->module_eeprom(phydev, ee, data);