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authorRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2022-06-13 12:20:57 +0100
committerRussell King (Oracle) <rmk+kernel@armlinux.org.uk>2022-06-18 12:12:03 +0100
commit6345a365c12ea582b8d4fefd595aba8116064d01 (patch)
tree83544ed50866c64571d2f2e0407a1b24ff8750f2
parente06128de198f450561f93f4bcd9eba2ac6b47220 (diff)
net: phylink: fix SGMII inband autoneg enable
When we are operating in SGMII inband mode, it implies that there is a PHY connected, and the ethtool advertisement for autoneg applies to the PHY, not the SGMII link. When in 1000base-X mode, then this applies to the 802.3z link and needs to be applied to the PCS. Fix this. Fixes: 92817dad7dcb ("net: phylink: Support disabling autonegotiation for PCS") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
-rw-r--r--drivers/net/phy/phylink.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c
index 33c285252584..ecb8541de31c 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3026,7 +3026,9 @@ int phylink_mii_c22_pcs_config(struct mdio_device *pcs, unsigned int mode,
/* Ensure ISOLATE bit is disabled */
if (mode == MLO_AN_INBAND &&
- linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, advertising))
+ (interface == PHY_INTERFACE_MODE_SGMII ||
+ interface == PHY_INTERFACE_MODE_QSGMII ||
+ linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, advertising)))
bmcr = BMCR_ANENABLE;
else
bmcr = 0;