Add port management message for setting Rx mode in the card,
used for rx_mode netdev operation.
The link event handler is used for getting a notification about the
link state.
Signed-off-by: NAviad Krawczyk <aviad.krawczyk@huawei.com>
Signed-off-by: NZhao Chen <zhaochen6@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>