Merge branch 'hns3-ethtool-ksettings'

Lipeng says:

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net: hns3: support set_link_ksettings and for nway_reset ethtool command

This patch-set adds support for set_link_ksettings && for nway_resets
ethtool command and fixes some related ethtool bugs.
1, patch[4/6] adds support for ethtool_ops.set_link_ksettings.
2, patch[5/6] adds support ethtool_ops.for nway_reset.
3, patch[1/6,2/6,3/6,6/6] fix some bugs for getting port information by
   ethtool command(ethtool ethx).
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Signed-off-by: David S. Miller <davem@davemloft.net>