Thread (18 messages) 18 messages, 2 authors, 2025-02-26
STALE483d
Revisions (5)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]

[PATCH net-next v2 08/13] net: phy: phy_device: Use link_capabilities lookup for PHY aneg config

From: Maxime Chevallier <maxime.chevallier@bootlin.com>
Date: 2025-02-26 10:09:44
Also in: linux-arm-kernel, lkml
Subsystem: ethernet phy library, networking drivers, the rest · Maintainers: Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

When configuring PHY advertising with autoneg disabled, we lookd for an
exact linkmode to advertise and configure for the requested Speed and
Duplex, specially at or over 1G.

Using phy_caps_lookup allows us to build a list of the supported
linkmodes at that speed that we can advertise instead of the first mode
that matches.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
---
V1 -> V2: - No changes

 drivers/net/phy/phy_device.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 9c573555ac49..57b90ec6477e 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2357,7 +2357,7 @@ EXPORT_SYMBOL(genphy_check_and_restart_aneg);
 int __genphy_config_aneg(struct phy_device *phydev, bool changed)
 {
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(fixed_advert);
-	const struct phy_setting *set;
+	const struct link_capabilities *c;
 	unsigned long *advert;
 	int err;
 
@@ -2383,10 +2383,11 @@ int __genphy_config_aneg(struct phy_device *phydev, bool changed)
 	} else {
 		linkmode_zero(fixed_advert);
 
-		set = phy_lookup_setting(phydev->speed, phydev->duplex,
-					 phydev->supported, true);
-		if (set)
-			linkmode_set_bit(set->bit, fixed_advert);
+		c = phy_caps_lookup(phydev->speed, phydev->duplex,
+				    phydev->supported, true);
+		if (c)
+			linkmode_and(fixed_advert, phydev->supported,
+				     c->linkmodes);
 
 		advert = fixed_advert;
 	}
-- 
2.48.1
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