[PATCH net-next v2 4/5] net: cadence: macb: add ethtool EEE support
From: Nicolai Buchwitz <hidden>
Date: 2026-02-24 09:19:07
Subsystem:
atmel macb ethernet driver, networking drivers, the rest · Maintainers:
Théo Lebrun, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Implement ethtool get_eee and set_eee operations for the Cadence GEM MAC, delegating to phylink for PHY-level EEE negotiation state. The MAC-level LPI control (TXLPIEN) is not manipulated directly in the ethtool ops - phylink manages the full EEE lifecycle through the mac_enable_tx_lpi / mac_disable_tx_lpi callbacks. Both ops are gated on MACB_CAPS_EEE; platforms without the capability flag return -EOPNOTSUPP. Signed-off-by: Nicolai Buchwitz <redacted> --- drivers/net/ethernet/cadence/macb_main.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index fb64a97725b1..87097100b88c 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c@@ -4032,6 +4032,26 @@ static const struct ethtool_ops macb_ethtool_ops = { .set_ringparam = macb_set_ringparam, }; +static int macb_get_eee(struct net_device *dev, struct ethtool_keee *eee) +{ + struct macb *bp = netdev_priv(dev); + + if (!(bp->caps & MACB_CAPS_EEE)) + return -EOPNOTSUPP; + + return phylink_ethtool_get_eee(bp->phylink, eee); +} + +static int macb_set_eee(struct net_device *dev, struct ethtool_keee *eee) +{ + struct macb *bp = netdev_priv(dev); + + if (!(bp->caps & MACB_CAPS_EEE)) + return -EOPNOTSUPP; + + return phylink_ethtool_set_eee(bp->phylink, eee); +} + static const struct ethtool_ops gem_ethtool_ops = { .get_regs_len = macb_get_regs_len, .get_regs = macb_get_regs,
@@ -4053,6 +4073,8 @@ static const struct ethtool_ops gem_ethtool_ops = { .get_rxnfc = gem_get_rxnfc, .set_rxnfc = gem_set_rxnfc, .get_rx_ring_count = gem_get_rx_ring_count, + .get_eee = macb_get_eee, + .set_eee = macb_set_eee, }; static int macb_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
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2.51.0