target/linux/generic/pending-4.9/701-phy_extension.patch

   1 From: John Crispin <john@phrozen.org>
   2 Subject: net: phy: add phy_ethtool_ioctl()
   3
   4 Signed-off-by: John Crispin <john@phrozen.org>
   5 ---
   6  drivers/net/phy/phy.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
   7  include/linux/phy.h   |  1 +
   8  2 files changed, 45 insertions(+)
   9
  10 diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
  11 index a9be26f1f677..d0a5ac1d6445 100644
  12 --- a/drivers/net/phy/phy.c
  13 +++ b/drivers/net/phy/phy.c
  14 @@ -466,6 +466,50 @@ int phy_ethtool_ksettings_get(struct phy_device *phydev,
  15  }
  16  EXPORT_SYMBOL(phy_ethtool_ksettings_get);
  17
  18 +int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr)
  19 +{
  20 +       u32 cmd;
  21 +       int tmp;
  22 +       struct ethtool_cmd ecmd = { ETHTOOL_GSET };
  23 +       struct ethtool_value edata = { ETHTOOL_GLINK };
  24 +
  25 +       if (get_user(cmd, (u32 *) useraddr))
  26 +               return -EFAULT;
  27 +
  28 +       switch (cmd) {
  29 +       case ETHTOOL_GSET:
  30 +               phy_ethtool_gset(phydev, &ecmd);
  31 +               if (copy_to_user(useraddr, &ecmd, sizeof(ecmd)))
  32 +                       return -EFAULT;
  33 +               return 0;
  34 +
  35 +       case ETHTOOL_SSET:
  36 +               if (copy_from_user(&ecmd, useraddr, sizeof(ecmd)))
  37 +                       return -EFAULT;
  38 +               return phy_ethtool_sset(phydev, &ecmd);
  39 +
  40 +       case ETHTOOL_NWAY_RST:
  41 +               /* if autoneg is off, it's an error */
  42 +               tmp = phy_read(phydev, MII_BMCR);
  43 +               if (tmp & BMCR_ANENABLE) {
  44 +                       tmp |= (BMCR_ANRESTART);
  45 +                       phy_write(phydev, MII_BMCR, tmp);
  46 +                       return 0;
  47 +               }
  48 +               return -EINVAL;
  49 +
  50 +       case ETHTOOL_GLINK:
  51 +               edata.data = (phy_read(phydev,
  52 +                               MII_BMSR) & BMSR_LSTATUS) ? 1 : 0;
  53 +               if (copy_to_user(useraddr, &edata, sizeof(edata)))
  54 +                       return -EFAULT;
  55 +               return 0;
  56 +       }
  57 +
  58 +       return -EOPNOTSUPP;
  59 +}
  60 +EXPORT_SYMBOL(phy_ethtool_ioctl);
  61 +
  62  /**
  63   * phy_mii_ioctl - generic PHY MII ioctl interface
  64   * @phydev: the phy_device struct
  65 diff --git a/include/linux/phy.h b/include/linux/phy.h
  66 index bd22670e2182..93c1e74afc44 100644
  67 --- a/include/linux/phy.h
  68 +++ b/include/linux/phy.h
  69 @@ -813,6 +813,7 @@ int phy_ethtool_ksettings_get(struct phy_device *phydev,
  70                               struct ethtool_link_ksettings *cmd);
  71  int phy_ethtool_ksettings_set(struct phy_device *phydev,
  72                               const struct ethtool_link_ksettings *cmd);
  73 +int phy_ethtool_ioctl(struct phy_device *phydev, void *useraddr);
  74  int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd);
  75  int phy_start_interrupts(struct phy_device *phydev);
  76  void phy_print_status(struct phy_device *phydev);
  77 --
  78 2.11.0
  79