[PATCH net-next 1/2] net: lan743x: Add support for get_pauseparam and set_pauseparam

Raju Lakkaraju
2022-10-21T05:57:17Z

Add pause get and set functions

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
---
.../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