[PATCH v3 net-next 09/12] net: ethernet: Add helper for MACs which support pause

[Andrew Lunn]

Rather than have the MAC drivers manipulate phydev members, add a
helper function for MACs supporting Pause, but not Asym Pause.

Signed-off-by: Andrew Lunn <and...@lunn.ch>
Reviewed-by: Florian Fainelli <f.faine...@gmail.com>
---
v2: rename phy_support_pause() to phy_support_sym_pause()
---
 drivers/net/ethernet/broadcom/bcm63xx_enet.c |  2 +-
 drivers/net/ethernet/freescale/fec_main.c    |  4 +---
 drivers/net/phy/phy_device.c                 | 14 ++++++++++++++
 include/linux/phy.h                          |  1 +
 4 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c 
b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index 2eee9459c2cf..9f25667c38e6 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -890,7 +890,7 @@ static int bcm_enet_open(struct net_device *dev)
                }
 
                /* mask with MAC supported features */
-               phydev->supported |= SUPPORTED_Pause;
+               phy_support_sym_pause(phydev);
                phy_set_max_speed(phydev, SPEED_100);
 
                if (priv->pause_auto && priv->pause_rx && priv->pause_tx)
diff --git a/drivers/net/ethernet/freescale/fec_main.c 
b/drivers/net/ethernet/freescale/fec_main.c
index 0c6fd77b6599..05ce0903391a 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1950,14 +1950,12 @@ static int fec_enet_mii_probe(struct net_device *ndev)
                phy_remove_link_mode(phy_dev,
                                     ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
 #if !defined(CONFIG_M5272)
-               phy_dev->supported |= SUPPORTED_Pause;
+               phy_support_sym_pause(phy_dev);
 #endif
        }
        else
                phy_set_max_speed(phy_dev, 100);
 
-       phy_dev->advertising = phy_dev->supported;
-
        fep->link = 0;
        fep->full_duplex = 0;
 
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index a0646a66f005..e657d5ae2ab8 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -1783,6 +1783,20 @@ void phy_remove_link_mode(struct phy_device *phydev, u32 
link_mode)
 }
 EXPORT_SYMBOL(phy_remove_link_mode);
 
+/**
+ * phy_support_sym_pause - Enable support of symmetrical pause
+ * @phydev: target phy_device struct
+ *
+ * Description: Called by the MAC to indicate is supports symmetrical
+ * Pause, but not asym pause.
+ */
+void phy_support_sym_pause(struct phy_device *phydev)
+{
+       phydev->supported |= SUPPORTED_Pause;
+       phydev->advertising = phydev->supported;
+}
+EXPORT_SYMBOL(phy_support_sym_pause);
+
 /**
  * phy_support_asym_pause - Enable support of asym pause
  * @phydev: target phy_device struct
diff --git a/include/linux/phy.h b/include/linux/phy.h
index e2db819807c1..bc5d6c3f1388 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1050,6 +1050,7 @@ int phy_start_interrupts(struct phy_device *phydev);
 void phy_print_status(struct phy_device *phydev);
 int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
 void phy_remove_link_mode(struct phy_device *phydev, u32 link_mode);
+void phy_support_sym_pause(struct phy_device *phydev);
 void phy_support_asym_pause(struct phy_device *phydev);
 
 int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
-- 
2.19.0.rc1