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c521b8c9f2
Implement ethtool .get_pauseparam and .set_pauseparam handlers for configuring flow control on smsc95xx. The driver now supports enabling or disabling transmit and receive pause frames, with or without autonegotiation. Pause settings are applied during link-up based on current PHY state and user configuration. Previously, the driver used phy_get_pause() during link-up handling, but lacked initialization and an ethtool interface to configure pause modes. As a result, flow control support was effectively non-functional. Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20250718075157.297923-1-o.rempel@pengutronix.de Signed-off-by: Jakub Kicinski <kuba@kernel.org>