[net-next v1 6/6] net: stmmac: ethtool: Do NOT call phylink function in NCSI mode.

[Minda Chen <minda.chen@starfivetech.com>]

stmmac ethtool module do not call phylink function
while GMAC NCSI mode.
stmmac_ethtool_get_link_ksettings() return NCSI defaut
speed and duplex setting, except that most cases return
-EOPNOTSUPP error code.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
---
 .../ethernet/stmicro/stmmac/stmmac_ethtool.c  | 32 ++++++++++++++++++-
 1 file changed, 31 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 92585d27ab88..149d3b9536ce 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -322,6 +322,12 @@ static int stmmac_ethtool_get_link_ksettings(struct net_device *dev,
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi) {
+		cmd->base.speed = SPEED_100;
+		cmd->base.duplex = DUPLEX_FULL;
+		return 0;
+	}
+
 	return phylink_ethtool_ksettings_get(priv->phylink, cmd);
 }
 
@@ -331,6 +337,9 @@ stmmac_ethtool_set_link_ksettings(struct net_device *dev,
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi)
+		return -EOPNOTSUPP;
+
 	return phylink_ethtool_ksettings_set(priv->phylink, cmd);
 }
 
@@ -384,6 +393,9 @@ static int stmmac_nway_reset(struct net_device *dev)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi)
+		return -EOPNOTSUPP;
+
 	return phylink_ethtool_nway_reset(priv->phylink);
 }
 
@@ -424,6 +436,9 @@ stmmac_get_pauseparam(struct net_device *netdev,
 {
 	struct stmmac_priv *priv = netdev_priv(netdev);
 
+	if (priv->plat->use_ncsi)
+		return;
+
 	phylink_ethtool_get_pauseparam(priv->phylink, pause);
 }
 
@@ -433,6 +448,9 @@ stmmac_set_pauseparam(struct net_device *netdev,
 {
 	struct stmmac_priv *priv = netdev_priv(netdev);
 
+	if (priv->plat->use_ncsi)
+		return -EOPNOTSUPP;
+
 	return phylink_ethtool_set_pauseparam(priv->phylink, pause);
 }
 
@@ -547,7 +565,7 @@ static void stmmac_get_ethtool_stats(struct net_device *dev,
 					     (*(u32 *)p);
 			}
 		}
-		if (priv->dma_cap.eee) {
+		if (priv->dma_cap.eee && !priv->plat->use_ncsi) {
 			int val = phylink_get_eee_err(priv->phylink);
 			if (val)
 				priv->xstats.phy_eee_wakeup_error_n = val;
@@ -723,6 +741,9 @@ static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi)
+		return;
+
 	return phylink_ethtool_get_wol(priv->phylink, wol);
 }
 
@@ -730,6 +751,9 @@ static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi)
+		return -EOPNOTSUPP;
+
 	return phylink_ethtool_set_wol(priv->phylink, wol);
 }
 
@@ -738,6 +762,9 @@ static int stmmac_ethtool_op_get_eee(struct net_device *dev,
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi)
+		return -EOPNOTSUPP;
+
 	return phylink_ethtool_get_eee(priv->phylink, edata);
 }
 
@@ -746,6 +773,9 @@ static int stmmac_ethtool_op_set_eee(struct net_device *dev,
 {
 	struct stmmac_priv *priv = netdev_priv(dev);
 
+	if (priv->plat->use_ncsi)
+		return -EOPNOTSUPP;
+
 	return phylink_ethtool_set_eee(priv->phylink, edata);
 }
 
-- 
2.17.1