generic: 6.6: mtk_eth_soc: add support for flow-control settings

Add patch implementing operations to get and set flow-control link
parameters of mtk_eth_soc via ethtool.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

target/linux/generic/pending-6.6/739-06-net-ethernet-mtk_eth_soc-implement-.-get-set-_pausep.patch

@@ -0,0 +1,49 @@
+From c418a6dc9ae0d4b0732ac9d6812d75d62077d9cd Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Tue, 26 Mar 2024 10:35:09 +0000
+Subject: [PATCH] net: ethernet: mtk_eth_soc: implement .{get,set}_pauseparam
+ ethtool ops
+
+Implement operations to get and set flow-control link parameters.
+Both is done by simply calling phylink_ethtool_{get,set}_pauseparam().
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+---
+ drivers/net/ethernet/mediatek/mtk_eth_soc.c | 18 +++++++++++++++++-
+ 1 file changed, 17 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c
++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c
+@@ -4644,6 +4644,20 @@ static int mtk_set_rxnfc(struct net_devi
+ 	return ret;
+ }
+
++static void mtk_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
++{
++	struct mtk_mac *mac = netdev_priv(dev);
++
++	phylink_ethtool_get_pauseparam(mac->phylink, pause);
++}
++
++static int mtk_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause)
++{
++	struct mtk_mac *mac = netdev_priv(dev);
++
++	return phylink_ethtool_set_pauseparam(mac->phylink, pause);
++}
++
+ static u16 mtk_select_queue(struct net_device *dev, struct sk_buff *skb,
+ 			    struct net_device *sb_dev)
+ {
+@@ -4672,8 +4686,10 @@ static const struct ethtool_ops mtk_etht
+ 	.get_strings		= mtk_get_strings,
+ 	.get_sset_count		= mtk_get_sset_count,
+ 	.get_ethtool_stats	= mtk_get_ethtool_stats,
++	.get_pauseparam		= mtk_get_pauseparam,
++	.set_pauseparam		= mtk_set_pauseparam,
+ 	.get_rxnfc		= mtk_get_rxnfc,
+-	.set_rxnfc              = mtk_set_rxnfc,
++	.set_rxnfc		= mtk_set_rxnfc,
+ };
+
+ static const struct net_device_ops mtk_netdev_ops = {