netdev - MAC/PHY-support speeds on xgene-v2

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Message-ID: <b0be6bbd-c0f1-42ab-9e28-ee9a55f5283c@gmail.com>
Date: Fri, 7 Feb 2025 08:30:50 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Iyappan Subramanian <iyappan@...amperecomputing.com>,
 Keyur Chudgar <keyur@...amperecomputing.com>
Cc: "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
 Andrew Lunn <andrew@...n.ch>,
 Russell King - ARM Linux <linux@...linux.org.uk>
Subject: MAC/PHY-support speeds on xgene-v2

Upcoming cleanups in phylib raise a question wrt xgene-v2:
xge_mac_set_speed() indicates that speeds of 10Mbps and 100Mbps are
supported by the MAC. xge_mdio_config() however removes these speeds
from the PHY-supported modes.
What is the background of removing these speeds from the PHY
advertisement? Are they supported by the MAC or not?