mirror of https://github.com/hak5/openwrt.git
67 lines
2.2 KiB
Diff
67 lines
2.2 KiB
Diff
From ce825df56e0480a2cbb296e38976babafb57e503 Mon Sep 17 00:00:00 2001
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From: Andrew Lunn <andrew@lunn.ch>
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Date: Wed, 12 Sep 2018 01:53:17 +0200
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Subject: [PATCH 601/660] net: ethernet: Add helper for set_pauseparam for Asym
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Pause
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ethtool can be used to enable/disable pause. Add a helper to configure
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the PHY when asym pause is supported.
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Signed-off-by: Andrew Lunn <andrew@lunn.ch>
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Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/phy/phy_device.c | 30 ++++++++++++++++++++++++++++++
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include/linux/phy.h | 1 +
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2 files changed, 31 insertions(+)
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--- a/drivers/net/phy/phy_device.c
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+++ b/drivers/net/phy/phy_device.c
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@@ -1790,6 +1790,36 @@ void phy_support_asym_pause(struct phy_d
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}
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EXPORT_SYMBOL(phy_support_asym_pause);
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+/**
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+ * phy_set_asym_pause - Configure Pause and Asym Pause
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+ * @phydev: target phy_device struct
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+ * @rx: Receiver Pause is supported
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+ * @tx: Transmit Pause is supported
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+ *
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+ * Description: Configure advertised Pause support depending on if
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+ * transmit and receiver pause is supported. If there has been a
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+ * change in adverting, trigger a new autoneg. Generally called from
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+ * the set_pauseparam .ndo.
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+ */
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+void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx)
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+{
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+ u16 oldadv = phydev->advertising;
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+ u16 newadv = oldadv &= ~(SUPPORTED_Pause | SUPPORTED_Asym_Pause);
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+
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+ if (rx)
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+ newadv |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
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+ if (tx)
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+ newadv ^= SUPPORTED_Asym_Pause;
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+
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+ if (oldadv != newadv) {
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+ phydev->advertising = newadv;
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+
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+ if (phydev->autoneg)
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+ phy_start_aneg(phydev);
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+ }
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+}
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+EXPORT_SYMBOL(phy_set_asym_pause);
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+
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static void of_set_phy_supported(struct phy_device *phydev)
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{
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struct device_node *node = phydev->mdio.dev.of_node;
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--- a/include/linux/phy.h
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+++ b/include/linux/phy.h
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@@ -1050,6 +1050,7 @@ int phy_start_interrupts(struct phy_devi
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void phy_print_status(struct phy_device *phydev);
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int phy_set_max_speed(struct phy_device *phydev, u32 max_speed);
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void phy_support_asym_pause(struct phy_device *phydev);
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+void phy_set_asym_pause(struct phy_device *phydev, bool rx, bool tx);
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int phy_register_fixup(const char *bus_id, u32 phy_uid, u32 phy_uid_mask,
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int (*run)(struct phy_device *));
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