netdev - [RFC/RFTv3 07/24] net: marvell: mvneta: Simplify EEE configuration

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Date:   Fri, 31 Mar 2023 02:55:01 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     netdev <netdev@...r.kernel.org>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Oleksij Rempel <linux@...pel-privat.de>,
        Andrew Lunn <andrew@...n.ch>
Subject: [RFC/RFTv3 07/24] net: marvell: mvneta: Simplify EEE configuration

phylib already does most of the work. It will track eee_enabled,
eee_active and tx_lpi_enabled and correctly set them in the
ethtool_get_eee callback.

Replace the call to phy_init_eee() by looking at the value of
eee_active passed to the mac_set_eee callback.

Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
v2: Use eee_active parameter, which is race free.
    Remove handling of tx_lpi_enabled, leave it to phylib.
v3: Add mac_set_eee() callback.
---
 drivers/net/ethernet/marvell/mvneta.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 0e39d199ff06..fba9edad9e37 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -536,10 +536,6 @@ struct mvneta_port {
 	struct mvneta_bm_pool *pool_short;
 	int bm_win_id;
 
-	bool eee_enabled;
-	bool eee_active;
-	bool tx_lpi_enabled;
-
 	u64 ethtool_stats[ARRAY_SIZE(mvneta_statistics)];
 
 	u32 indir[MVNETA_RSS_LU_TABLE_SIZE];
@@ -4170,7 +4166,6 @@ static void mvneta_mac_link_down(struct phylink_config *config,
 		mvreg_write(pp, MVNETA_GMAC_AUTONEG_CONFIG, val);
 	}
 
-	pp->eee_active = false;
 	mvneta_set_eee(pp, false);
 }
 
@@ -4220,11 +4215,15 @@ static void mvneta_mac_link_up(struct phylink_config *config,
 	}
 
 	mvneta_port_up(pp);
+}
 
-	if (phy && pp->eee_enabled) {
-		pp->eee_active = phy_init_eee(phy, false) >= 0;
-		mvneta_set_eee(pp, pp->eee_active && pp->tx_lpi_enabled);
-	}
+static void mvneta_mac_set_eee(struct phylink_config *config,
+			       bool eee_active)
+{
+	struct net_device *ndev = to_net_dev(config->dev);
+	struct mvneta_port *pp = netdev_priv(ndev);
+
+	mvneta_set_eee(pp, eee_active);
 }
 
 static const struct phylink_mac_ops mvneta_phylink_ops = {
@@ -4234,6 +4233,7 @@ static const struct phylink_mac_ops mvneta_phylink_ops = {
 	.mac_finish = mvneta_mac_finish,
 	.mac_link_down = mvneta_mac_link_down,
 	.mac_link_up = mvneta_mac_link_up,
+	.mac_set_eee = mvneta_mac_set_eee,
 };
 
 static int mvneta_mdio_probe(struct mvneta_port *pp)
@@ -5028,9 +5028,6 @@ static int mvneta_ethtool_get_eee(struct net_device *dev,
 
 	lpi_ctl0 = mvreg_read(pp, MVNETA_LPI_CTRL_0);
 
-	eee->eee_enabled = pp->eee_enabled;
-	eee->eee_active = pp->eee_active;
-	eee->tx_lpi_enabled = pp->tx_lpi_enabled;
 	eee->tx_lpi_timer = (lpi_ctl0) >> 8; // * scale;
 
 	return phylink_ethtool_get_eee(pp->phylink, eee);
@@ -5053,11 +5050,6 @@ static int mvneta_ethtool_set_eee(struct net_device *dev,
 	lpi_ctl0 |= eee->tx_lpi_timer << 8;
 	mvreg_write(pp, MVNETA_LPI_CTRL_0, lpi_ctl0);
 
-	pp->eee_enabled = eee->eee_enabled;
-	pp->tx_lpi_enabled = eee->tx_lpi_enabled;
-
-	mvneta_set_eee(pp, eee->tx_lpi_enabled && eee->eee_enabled);
-
 	return phylink_ethtool_set_eee(pp->phylink, eee);
 }
 
-- 
2.40.0