[OpenWrt-Devel] [PATCH] ramips: mt7621: add support for disabling flow control

[Cristian Morales Vega]

Signed-off-by: Cristian Morales Vega <cristian at samknows.com>
---
 ...diatek-add-swconfig-driver-for-gsw_mt762x.patch | 54 +++++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

diff --git a/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch b/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch
index bbad8cc..d056551 100644
--- a/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch
+++ b/target/linux/ramips/patches-4.4/0513-net-mediatek-add-swconfig-driver-for-gsw_mt762x.patch
@@ -28,7 +28,7 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
  obj-$(CONFIG_NET_MEDIATEK_SOC)			+= mtk-eth-soc.o
 --- /dev/null
 +++ b/drivers/net/ethernet/mediatek/mt7530.c
-@@ -0,0 +1,804 @@
+@@ -0,0 +1,856 @@
 +/*
 + * This program is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU General Public License
@@ -709,6 +709,50 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +	return 0;
 +}
 +
++static int mt7621_sw_get_port_fc(struct switch_dev *dev,
++				 const struct switch_attr *attr,
++				 struct switch_val *val)
++{
++	u32 reg;
++	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
++
++	if (val->port_vlan >= MT7530_NUM_PORTS)
++		return -EINVAL;
++
++	reg = mdiobus_read(priv->bus, val->port_vlan, 4);
++	reg &= BIT(10);
++
++	val->value.i = reg ? 1 : 0;
++
++	return 0;
++}
++
++static int mt7621_sw_set_port_fc(struct switch_dev *dev,
++				 const struct switch_attr *attr,
++				 struct switch_val *val)
++{
++	u32 reg;
++	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
++
++	if (val->port_vlan >= MT7530_NUM_PORTS)
++		return -EINVAL;
++
++	reg = mdiobus_read(priv->bus, val->port_vlan, 4);
++	if(val->value.i) {
++		reg |= BIT(10);
++	} else {
++		reg &= ~BIT(10);
++	}
++	mdiobus_write(priv->bus, val->port_vlan, 4, reg);
++
++	/* Restart auto-negotiation */
++	reg = mdiobus_read(priv->bus, val->port_vlan, 0);
++	reg |= BIT(9);
++	mdiobus_write(priv->bus, val->port_vlan, 0, reg);
++
++	return 0;
++}
++
 +static const struct switch_attr mt7621_port[] = {
 +	{
 +		.type = SWITCH_TYPE_STRING,
@@ -717,6 +761,14 @@ Signed-off-by: John Crispin <blogic at openwrt.org>
 +		.get = mt7621_sw_get_port_mib,
 +		.set = NULL,
 +	},
++	{
++		.type = SWITCH_TYPE_INT,
++		.name = "flow_ctl",
++		.description = "Flow Control",
++		.get = mt7621_sw_get_port_fc,
++		.set = mt7621_sw_set_port_fc,
++		.max = 1,
++	},
 +};
 +
 +static const struct switch_attr mt7530_port[] = {
-- 
2.6.3
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