net: hns3: support wake on lan configuration and query

The HNS3 driver supports Wake-on-LAN, which can wake up
the server from power off state to power on state by magic
packet or magic security packet.

ChangeLog:
v1->v2:
Deleted the debugfs function that overlaps with the ethtool function
from suggestion of Andrew Lunn.

v2->v3:
Return the wol configuration stored in driver,
suggested by Alexander H Duyck.

v3->v4:
Add a helper to go from netdev to the local struct,
suggested by Simon Horman and Jakub Kicinski.

Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Hao Lan <lanhao@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 27 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 55306fe8a540..51d1278b18f6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -2063,6 +2063,31 @@ static int hns3_get_link_ext_state(struct net_device *netdev,
 	return -ENODATA;
 }
 
+static void hns3_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
+{
+	struct hnae3_handle *handle = hns3_get_handle(netdev);
+	const struct hnae3_ae_ops *ops = hns3_get_ops(handle);
+	struct hnae3_ae_dev *ae_dev = hns3_get_ae_dev(handle);
+
+	if (!hnae3_ae_dev_wol_supported(ae_dev))
+		return;
+
+	ops->get_wol(handle, wol);
+}
+
+static int hns3_set_wol(struct net_device *netdev,
+			struct ethtool_wolinfo *wol)
+{
+	struct hnae3_handle *handle = hns3_get_handle(netdev);
+	const struct hnae3_ae_ops *ops = hns3_get_ops(handle);
+	struct hnae3_ae_dev *ae_dev = hns3_get_ae_dev(handle);
+
+	if (!hnae3_ae_dev_wol_supported(ae_dev))
+		return -EOPNOTSUPP;
+
+	return ops->set_wol(handle, wol);
+}
+
 static const struct ethtool_ops hns3vf_ethtool_ops = {
 	.supported_coalesce_params = HNS3_ETHTOOL_COALESCE,
 	.supported_ring_params = HNS3_ETHTOOL_RING,
@@ -2139,6 +2164,8 @@ static const struct ethtool_ops hns3_ethtool_ops = {
 	.set_tunable = hns3_set_tunable,
 	.reset = hns3_set_reset,
 	.get_link_ext_state = hns3_get_link_ext_state,
+	.get_wol = hns3_get_wol,
+	.set_wol = hns3_set_wol,
 };
 
 void hns3_ethtool_set_ops(struct net_device *netdev)