target/linux/mvebu/patches-4.9/421-phylink-add-ethtool-nway_reset-support.patch

   1 From: Russell King <rmk+kernel@arm.linux.org.uk>
   2 Date: Thu, 1 Oct 2015 20:27:19 +0100
   3 Subject: [PATCH] phylink: add ethtool nway_reset support
   4
   5 Add ethtool nway_reset support to phylink, to allow userspace to
   6 request a re-negotiation of the link.
   7
   8 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
   9 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  10 ---
  11
  12 --- a/drivers/net/phy/phylink.c
  13 +++ b/drivers/net/phy/phylink.c
  14 @@ -783,6 +783,20 @@ int phylink_ethtool_ksettings_set(struct
  15  }
  16  EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_set);
  17
  18 +int phylink_ethtool_nway_reset(struct phylink *pl)
  19 +{
  20 +       int ret = 0;
  21 +
  22 +       mutex_lock(&pl->config_mutex);
  23 +       if (pl->phydev)
  24 +               ret = genphy_restart_aneg(pl->phydev);
  25 +       phylink_mac_an_restart(pl);
  26 +       mutex_unlock(&pl->config_mutex);
  27 +
  28 +       return ret;
  29 +}
  30 +EXPORT_SYMBOL_GPL(phylink_ethtool_nway_reset);
  31 +
  32  /* This emulates MII registers for a fixed-mode phy operating as per the
  33   * passed in state. "aneg" defines if we report negotiation is possible.
  34   *
  35 --- a/include/linux/phylink.h
  36 +++ b/include/linux/phylink.h
  37 @@ -86,6 +86,7 @@ int phylink_ethtool_ksettings_get(struct
  38                                   struct ethtool_link_ksettings *);
  39  int phylink_ethtool_ksettings_set(struct phylink *,
  40                                   const struct ethtool_link_ksettings *);
  41 +int phylink_ethtool_nway_reset(struct phylink *);
  42  int phylink_mii_ioctl(struct phylink *, struct ifreq *, int);
  43
  44  int phylink_set_link(struct phylink *pl, unsigned int mode, u8 port,