[PATCH net-next 1/2] net: lan743x: Add support for get_pauseparam and set_pauseparam
From: Raju Lakkaraju <hidden>
Date: 2022-10-21 05:57:21
Also in:
lkml
Subsystem:
microchip lan743x ethernet driver, networking drivers, the rest · Maintainers:
Bryan Whitehead, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add pause get and set functions Signed-off-by: Raju Lakkaraju <redacted> --- .../net/ethernet/microchip/lan743x_ethtool.c | 46 +++++++++++++++++++ drivers/net/ethernet/microchip/lan743x_main.c | 4 +- drivers/net/ethernet/microchip/lan743x_main.h | 2 + 3 files changed, 50 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.c b/drivers/net/ethernet/microchip/lan743x_ethtool.c
index c739d60ee17d..44c98715eb17 100644
--- a/drivers/net/ethernet/microchip/lan743x_ethtool.c
+++ b/drivers/net/ethernet/microchip/lan743x_ethtool.c@@ -1233,6 +1233,50 @@ static void lan743x_get_regs(struct net_device *dev, lan743x_common_regs(dev, regs, p); } +static void lan743x_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct lan743x_adapter *adapter = netdev_priv(dev); + struct lan743x_phy *phy = &adapter->phy; + + if (phy->fc_request_control & FLOW_CTRL_TX) + pause->tx_pause = 1; + if (phy->fc_request_control & FLOW_CTRL_RX) + pause->rx_pause = 1; + pause->autoneg = phy->fc_autoneg; +} + +static int lan743x_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct lan743x_adapter *adapter = netdev_priv(dev); + struct phy_device *phydev = dev->phydev; + struct lan743x_phy *phy = &adapter->phy; + + if (!phydev) + return -ENODEV; + + if (!phy_validate_pause(phydev, pause)) + return -EINVAL; + + phy->fc_request_control = 0; + if (pause->rx_pause) + phy->fc_request_control |= FLOW_CTRL_RX; + + if (pause->tx_pause) + phy->fc_request_control |= FLOW_CTRL_TX; + + phy->fc_autoneg = pause->autoneg; + + phy_set_asym_pause(phydev, pause->rx_pause, pause->tx_pause); + + if (pause->autoneg == AUTONEG_DISABLE) + lan743x_mac_flow_ctrl_set_enables(adapter, pause->tx_pause, + pause->rx_pause); + + return 0; +} + const struct ethtool_ops lan743x_ethtool_ops = { .get_drvinfo = lan743x_ethtool_get_drvinfo, .get_msglevel = lan743x_ethtool_get_msglevel,
@@ -1259,6 +1303,8 @@ const struct ethtool_ops lan743x_ethtool_ops = { .set_link_ksettings = phy_ethtool_set_link_ksettings, .get_regs_len = lan743x_get_regs_len, .get_regs = lan743x_get_regs, + .get_pauseparam = lan743x_get_pauseparam, + .set_pauseparam = lan743x_set_pauseparam, #ifdef CONFIG_PM .get_wol = lan743x_ethtool_get_wol, .set_wol = lan743x_ethtool_set_wol,
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index 50eeecba1f18..c0f8ba601c01 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c@@ -1326,8 +1326,8 @@ static void lan743x_mac_close(struct lan743x_adapter *adapter) 1, 1000, 20000, 100); } -static void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adapter, - bool tx_enable, bool rx_enable) +void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adapter, + bool tx_enable, bool rx_enable) { u32 flow_setting = 0;
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index 67877d3b6dd9..bc5eea4c7b40 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h@@ -1159,5 +1159,7 @@ u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset); void lan743x_csr_write(struct lan743x_adapter *adapter, int offset, u32 data); int lan743x_hs_syslock_acquire(struct lan743x_adapter *adapter, u16 timeout); void lan743x_hs_syslock_release(struct lan743x_adapter *adapter); +void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adapter, + bool tx_enable, bool rx_enable); #endif /* _LAN743X_H */
--
2.25.1