ramips: mt7530: remove redundant global attrs for port mirroring

Global attributes enable_mirror_tx/enable_mirror_rx depend on runtime
value of another global attribute mirror_source_port which just resides
in the memory

The same functionality can be achieved by directly setting port
attribute of the same names.  E.g. the following two groups of commands
achieve the same thing

	swconfig dev switch0 set mirror_source_port 3
	swconfig dev switch0 set enable_mirror_tx 1
	swconfig dev switch0 set mirror_source_port 4
	swconfig dev switch0 set enable_mirror_tx 1

	swconfig dev switch0 port 3 set enable_mirror_tx 1
	swconfig dev switch0 port 4 set enable_mirror_tx 1

Signed-off-by: Yousong Zhou <[email protected]>

target/linux/ramips/files-4.14/drivers/net/ethernet/mediatek/mt7530.c

@@ -208,7 +208,6 @@ struct mt7530_priv {
 	struct mii_bus		*bus;
 	struct switch_dev	swdev;
 
-	u8			mirror_src_port;
 	u8			mirror_dest_port;
 	bool			global_vlan_enable;
 	struct mt7530_vlan_entry	vlan_entries[MT7530_NUM_VLANS];
@@ -519,50 +518,6 @@ mt7530_get_vid(struct switch_dev *dev, const struct switch_attr *attr,
 	return 0;
 }
 
-static int
-mt7530_get_mirror_rx_enable(struct switch_dev *dev, const struct switch_attr *attr,
-		struct switch_val *val)
-{
-	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
-
-	val->value.i = priv->port_entries[priv->mirror_src_port].mirror_rx;
-
-	return 0;
-}
-
-static int
-mt7530_set_mirror_rx_enable(struct switch_dev *dev, const struct switch_attr *attr,
-		struct switch_val *val)
-{
-	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
-
-	priv->port_entries[priv->mirror_src_port].mirror_rx = val->value.i;
-
-	return 0;
-}
-
-static int
-mt7530_get_mirror_tx_enable(struct switch_dev *dev, const struct switch_attr *attr,
-		struct switch_val *val)
-{
-	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
-
-	val->value.i = priv->port_entries[priv->mirror_src_port].mirror_tx;
-
-	return 0;
-}
-
-static int
-mt7530_set_mirror_tx_enable(struct switch_dev *dev, const struct switch_attr *attr,
-		struct switch_val *val)
-{
-	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
-
-	priv->port_entries[priv->mirror_src_port].mirror_tx = val->value.i;
-
-	return 0;
-}
-
 static int
 mt7530_get_mirror_monitor_port(struct switch_dev *dev, const struct switch_attr *attr,
 		struct switch_val *val)
@@ -585,28 +540,6 @@ mt7530_set_mirror_monitor_port(struct switch_dev *dev, const struct switch_attr
 	return 0;
 }
 
-static int
-mt7530_get_mirror_source_port(struct switch_dev *dev, const struct switch_attr *attr,
-		struct switch_val *val)
-{
-	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
-
-	val->value.i = priv->mirror_src_port;
-
-	return 0;
-}
-
-static int
-mt7530_set_mirror_source_port(struct switch_dev *dev, const struct switch_attr *attr,
-		struct switch_val *val)
-{
-	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
-
-	priv->mirror_src_port = val->value.i;
-
-	return 0;
-}
-
 static int
 mt7530_get_port_mirror_rx(struct switch_dev *dev, const struct switch_attr *attr,
 		struct switch_val *val)
@@ -1002,20 +935,6 @@ static const struct switch_attr mt7530_global[] = {
 		.description = "Get MIB counters for switch",
 		.get = mt7530_sw_get_mib,
 		.set = NULL,
-	}, {
-		.type = SWITCH_TYPE_INT,
-		.name = "enable_mirror_rx",
-		.description = "Enable mirroring of RX packets",
-		.set = mt7530_set_mirror_rx_enable,
-		.get = mt7530_get_mirror_rx_enable,
-		.max = 1
-	}, {
-		.type = SWITCH_TYPE_INT,
-		.name = "enable_mirror_tx",
-		.description = "Enable mirroring of TX packets",
-		.set = mt7530_set_mirror_tx_enable,
-		.get = mt7530_get_mirror_tx_enable,
-		.max = 1
 	}, {
 		.type = SWITCH_TYPE_INT,
 		.name = "mirror_monitor_port",
@@ -1023,13 +942,6 @@ static const struct switch_attr mt7530_global[] = {
 		.set = mt7530_set_mirror_monitor_port,
 		.get = mt7530_get_mirror_monitor_port,
 		.max = MT7530_NUM_PORTS - 1
-	}, {
-		.type = SWITCH_TYPE_INT,
-		.name = "mirror_source_port",
-		.description = "Mirror source port",
-		.set = mt7530_set_mirror_source_port,
-		.get = mt7530_get_mirror_source_port,
-		.max = MT7530_NUM_PORTS - 1
 	},
 };