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Mon, 24 Oct 2022 01:25:24 -0700 From: Raju Lakkaraju To: CC: , , , , , , , , , , Subject: [PATCH net-next V1 1/2] net: lan743x: Add support for get_pauseparam and set_pauseparam Date: Mon, 24 Oct 2022 13:55:15 +0530 Message-ID: <20221024082516.661199-2-Raju.Lakkaraju@microchip.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221024082516.661199-1-Raju.Lakkaraju@microchip.com> References: <20221024082516.661199-1-Raju.Lakkaraju@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add pause get and set functions Signed-off-by: Raju Lakkaraju Reviewed-by: Andrew Lunn --- Change List: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D V0 -> V1: - Change the phy_set_asym_pause() to an else clause .../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..88f9484cc2a7 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); } =20 +static void lan743x_get_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct lan743x_adapter *adapter =3D netdev_priv(dev); + struct lan743x_phy *phy =3D &adapter->phy; + + if (phy->fc_request_control & FLOW_CTRL_TX) + pause->tx_pause =3D 1; + if (phy->fc_request_control & FLOW_CTRL_RX) + pause->rx_pause =3D 1; + pause->autoneg =3D phy->fc_autoneg; +} + +static int lan743x_set_pauseparam(struct net_device *dev, + struct ethtool_pauseparam *pause) +{ + struct lan743x_adapter *adapter =3D netdev_priv(dev); + struct phy_device *phydev =3D dev->phydev; + struct lan743x_phy *phy =3D &adapter->phy; + + if (!phydev) + return -ENODEV; + + if (!phy_validate_pause(phydev, pause)) + return -EINVAL; + + phy->fc_request_control =3D 0; + if (pause->rx_pause) + phy->fc_request_control |=3D FLOW_CTRL_RX; + + if (pause->tx_pause) + phy->fc_request_control |=3D FLOW_CTRL_TX; + + phy->fc_autoneg =3D pause->autoneg; + + if (pause->autoneg =3D=3D AUTONEG_DISABLE) + lan743x_mac_flow_ctrl_set_enables(adapter, pause->tx_pause, + pause->rx_pause); + else + phy_set_asym_pause(phydev, pause->rx_pause, pause->tx_pause); + + return 0; +} + const struct ethtool_ops lan743x_ethtool_ops =3D { .get_drvinfo =3D lan743x_ethtool_get_drvinfo, .get_msglevel =3D lan743x_ethtool_get_msglevel, @@ -1259,6 +1303,8 @@ const struct ethtool_ops lan743x_ethtool_ops =3D { .set_link_ksettings =3D phy_ethtool_set_link_ksettings, .get_regs_len =3D lan743x_get_regs_len, .get_regs =3D lan743x_get_regs, + .get_pauseparam =3D lan743x_get_pauseparam, + .set_pauseparam =3D lan743x_set_pauseparam, #ifdef CONFIG_PM .get_wol =3D lan743x_ethtool_get_wol, .set_wol =3D lan743x_ethtool_set_wol, diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/et= hernet/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); } =20 -static void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adap= ter, - 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 =3D 0; =20 diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/et= hernet/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 da= ta); int lan743x_hs_syslock_acquire(struct lan743x_adapter *adapter, u16 timeou= t); 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); =20 #endif /* _LAN743X_H */ --=20 2.25.1