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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>2022-06-21 10:57:31 +0100
commit444d244901e1868dd2d0c3e231678bcc31832a3a (patch)
treed111d27fabde2b448818a6fe05aa286aa800104a
parent66ef78f041a9d9fa28b9a1d7b7e978a9d76c2445 (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 c764cf17f584..f188ec229faf 100644
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3050,7 +3050,9 @@ 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;