> +struct ethtool_link_ext_stats {
> + /* Custom Linux statistic for PHY level link down events.
> + * In a simpler world it should be equal to netdev->carrier_down_count
> + * unfortunately netdev also counts local reconfigurations which don't
> + * actually take the physical link down, not to mention NC-SI which,
> + * if present, keeps the link up regardless of host state.
> + * This statistic counts when PHY _actually_ went down, or lost link.
> + */
> + u64 link_down_events;
Might be worth a comment why this is a u64 even when the uAPI has a
u32.
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Andrew
