target/linux/mvebu/patches-4.9/429-phylink-add-module-EEPROM-support.patch

   1 From: Russell King <rmk+kernel@arm.linux.org.uk>
   2 Date: Thu, 1 Oct 2015 23:10:05 +0100
   3 Subject: [PATCH] phylink: add module EEPROM support
   4
   5 Add support for reading module EEPROMs through phylink.
   6
   7 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
   8 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
   9 ---
  10
  11 --- a/drivers/net/phy/phylink.c
  12 +++ b/drivers/net/phy/phylink.c
  13 @@ -930,6 +930,36 @@ int phylink_ethtool_set_pauseparam(struc
  14  }
  15  EXPORT_SYMBOL_GPL(phylink_ethtool_set_pauseparam);
  16
  17 +int phylink_ethtool_get_module_info(struct phylink *pl,
  18 +                                   struct ethtool_modinfo *modinfo)
  19 +{
  20 +       int ret = -EOPNOTSUPP;
  21 +
  22 +       mutex_lock(&pl->config_mutex);
  23 +       if (pl->module_ops)
  24 +               ret = pl->module_ops->get_module_info(pl->module_data,
  25 +                                                     modinfo);
  26 +       mutex_unlock(&pl->config_mutex);
  27 +
  28 +       return ret;
  29 +}
  30 +EXPORT_SYMBOL_GPL(phylink_ethtool_get_module_info);
  31 +
  32 +int phylink_ethtool_get_module_eeprom(struct phylink *pl,
  33 +                                     struct ethtool_eeprom *ee, u8 *buf)
  34 +{
  35 +       int ret = -EOPNOTSUPP;
  36 +
  37 +       mutex_lock(&pl->config_mutex);
  38 +       if (pl->module_ops)
  39 +               ret = pl->module_ops->get_module_eeprom(pl->module_data, ee,
  40 +                                                       buf);
  41 +       mutex_unlock(&pl->config_mutex);
  42 +
  43 +       return ret;
  44 +}
  45 +EXPORT_SYMBOL_GPL(phylink_ethtool_get_module_eeprom);
  46 +
  47  int phylink_init_eee(struct phylink *pl, bool clk_stop_enable)
  48  {
  49         int ret = -EPROTONOSUPPORT;
  50 @@ -1115,6 +1145,39 @@ EXPORT_SYMBOL_GPL(phylink_mii_ioctl);
  51
  52
  53
  54 +int phylink_register_module(struct phylink *pl, void *data,
  55 +                           const struct phylink_module_ops *ops)
  56 +{
  57 +       int ret = -EBUSY;
  58 +
  59 +       mutex_lock(&pl->config_mutex);
  60 +       if (!pl->module_ops) {
  61 +               pl->module_ops = ops;
  62 +               pl->module_data = data;
  63 +               ret = 0;
  64 +       }
  65 +       mutex_unlock(&pl->config_mutex);
  66 +
  67 +       return ret;
  68 +}
  69 +EXPORT_SYMBOL_GPL(phylink_register_module);
  70 +
  71 +int phylink_unregister_module(struct phylink *pl, void *data)
  72 +{
  73 +       int ret = -EINVAL;
  74 +
  75 +       mutex_lock(&pl->config_mutex);
  76 +       if (pl->module_data == data) {
  77 +               pl->module_ops = NULL;
  78 +               pl->module_data = NULL;
  79 +               ret = 0;
  80 +       }
  81 +       mutex_unlock(&pl->config_mutex);
  82 +
  83 +       return ret;
  84 +}
  85 +EXPORT_SYMBOL_GPL(phylink_unregister_module);
  86 +
  87  void phylink_disable(struct phylink *pl)
  88  {
  89         set_bit(PHYLINK_DISABLE_LINK, &pl->phylink_disable_state);
  90 --- a/include/linux/phylink.h
  91 +++ b/include/linux/phylink.h
  92 @@ -74,6 +74,11 @@ struct phylink_mac_ops {
  93                             struct phy_device *);
  94  };
  95
  96 +struct phylink_module_ops {
  97 +       int (*get_module_info)(void *, struct ethtool_modinfo *);
  98 +       int (*get_module_eeprom)(void *, struct ethtool_eeprom *, u8 *);
  99 +};
 100 +
 101  struct phylink *phylink_create(struct net_device *, struct device_node *,
 102         phy_interface_t iface, const struct phylink_mac_ops *ops);
 103  void phylink_destroy(struct phylink *);
 104 @@ -96,12 +101,19 @@ void phylink_ethtool_get_pauseparam(stru
 105                                     struct ethtool_pauseparam *);
 106  int phylink_ethtool_set_pauseparam(struct phylink *,
 107                                    struct ethtool_pauseparam *);
 108 +int phylink_ethtool_get_module_info(struct phylink *, struct ethtool_modinfo *);
 109 +int phylink_ethtool_get_module_eeprom(struct phylink *,
 110 +                                     struct ethtool_eeprom *, u8 *);
 111  int phylink_init_eee(struct phylink *, bool);
 112  int phylink_get_eee_err(struct phylink *);
 113  int phylink_ethtool_get_eee(struct phylink *, struct ethtool_eee *);
 114  int phylink_ethtool_set_eee(struct phylink *, struct ethtool_eee *);
 115  int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
 116
 117 +int phylink_register_module(struct phylink *, void *,
 118 +                           const struct phylink_module_ops *);
 119 +int phylink_unregister_module(struct phylink *, void *);
 120 +
 121  int phylink_set_link(struct phylink *pl, unsigned int mode, u8 port,
 122                      const unsigned long *support);
 123  void phylink_disable(struct phylink *pl);