Use the new GLINKSETTINGS/SLINKSETTINGS ethtool API when available. Using the old API, we can only enable the first 31 modes in the advertising bitmask, and so interfaces can't negotiate higher modes.
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Use the new GLINKSETTINGS/SLINKSETTINGS ethtool API when available. Using the old API, we can only enable the first 31 modes in the advertising bitmask, and so interfaces can't negotiate higher modes.