net/mlx5e: Expose PFC stall prevention counters
Add the needed capability bit and counters to device spec description. Expose the following two counters in ethtool: tx_pause_storm_warning_events: when the device is stalled for a period longer than a pre-configured watermark, the counter increase, allowing the debug utility an insight into current device status. tx_pause_storm_error_events: when the device is stalled for a period longer than a pre-configured timeout, the pause transmission is disabled, and the counter increase. Signed-off-by: NInbar Karmy <inbark@mellanox.com> Signed-off-by: NSaeed Mahameed <saeedm@mellanox.com>
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