target/linux/generic/backport-4.19/702-v4.20-net-ethernet-Add-helper-for-MACs-which-support-asym-.patch

   1 From 1da223db3a0c522300b519ecbe1dc45927e28088 Mon Sep 17 00:00:00 2001
   2 From: Andrew Lunn <andrew@lunn.ch>
   3 Date: Wed, 12 Sep 2018 01:53:15 +0200
   4 Subject: [PATCH 600/660] net: ethernet: Add helper for MACs which support asym
   5  pause
   6
   7 Rather than have the MAC drivers manipulate phydev members to indicate
   8 they support Asym Pause, add a helper function.
   9
  10 Signed-off-by: Andrew Lunn <andrew@lunn.ch>
  11 Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
  12 Signed-off-by: David S. Miller <davem@davemloft.net>
  13 ---
  14  drivers/net/phy/phy_device.c | 13 +++++++++++++
  15  include/linux/phy.h          |  1 +
  16  2 files changed, 14 insertions(+)
  17
  18 --- a/drivers/net/phy/phy_device.c
  19 +++ b/drivers/net/phy/phy_device.c
  20 @@ -1781,6 +1781,19 @@ int phy_set_max_speed(struct phy_device
  21  }
  22  EXPORT_SYMBOL(phy_set_max_speed);
  23
  24 +/**
  25 + * phy_support_asym_pause - Enable support of asym pause
  26 + * @phydev: target phy_device struct
  27 + *
  28 + * Description: Called by the MAC to indicate is supports Asym Pause.
  29 + */
  30 +void phy_support_asym_pause(struct phy_device *phydev)
  31 +{
  32 +       phydev->supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
  33 +       phydev->advertising = phydev->supported;
  34 +}
  35 +EXPORT_SYMBOL(phy_support_asym_pause);
  36 +
  37  static void of_set_phy_supported(struct phy_device *phydev)
  38  {
  39         struct device_node *node = phydev->mdio.dev.of_node;
  40 --- a/include/linux/phy.h
  41 +++ b/include/linux/phy.h
  42 @@ -1051,6 +1051,7 @@ int phy_mii_ioctl(struct phy_device *phy
  43  int phy_start_interrupts(struct phy_device *phydev);
  44  void phy_print_status(struct phy_device *phydev);
  45  int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
  46 +void phy_support_asym_pause(struct phy_device *phydev);
  47
  48  int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
  49                        int (*run)(struct phy_device *));