generic: provide get_port_stats() on rtl836x switches

This patch provides a generic switch_dev_ops 'get_port_stats()' callback by
taping into the relevant port MIB counters.

This callback is used by swconfig_leds led trigger to blink LEDs with port
network traffic.

Signed-off-by: Thibaut VARENE <[email protected]>

target/linux/generic/files/drivers/net/phy/rtl8366_smi.c

@@ -1030,6 +1030,33 @@ int rtl8366_sw_get_port_mib(struct switch_dev *dev,
 }
 EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_mib);
 
+int rtl8366_sw_get_port_stats(struct switch_dev *dev, int port,
+				struct switch_port_stats *stats,
+				int txb_id, int rxb_id)
+{
+	struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
+	unsigned long long counter = 0;
+	int ret;
+
+	if (port >= smi->num_ports)
+		return -EINVAL;
+
+	ret = smi->ops->get_mib_counter(smi, txb_id, port, &counter);
+	if (ret)
+		return ret;
+
+	stats->tx_bytes = counter;
+
+	ret = smi->ops->get_mib_counter(smi, rxb_id, port, &counter);
+	if (ret)
+		return ret;
+
+	stats->rx_bytes = counter;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rtl8366_sw_get_port_stats);
+
 int rtl8366_sw_get_vlan_info(struct switch_dev *dev,
 			     const struct switch_attr *attr,
 			     struct switch_val *val)

target/linux/generic/files/drivers/net/phy/rtl8366_smi.h

@@ -146,6 +146,9 @@ int rtl8366_sw_get_vlan_enable(struct switch_dev *dev,
 int rtl8366_sw_set_vlan_enable(struct switch_dev *dev,
 			       const struct switch_attr *attr,
 			       struct switch_val *val);
+int rtl8366_sw_get_port_stats(struct switch_dev *dev, int port,
+				struct switch_port_stats *stats,
+				int txb_id, int rxb_id);
 
 struct rtl8366_smi* rtl8366_smi_probe(struct platform_device *pdev);
 

target/linux/generic/files/drivers/net/phy/rtl8366rb.c

@@ -205,6 +205,9 @@
 #define RTL8366RB_QOS_DEFAULT_PREIFG	1
 
 
+#define RTL8366RB_MIB_RXB_ID		0	/* IfInOctets */
+#define RTL8366RB_MIB_TXB_ID		20	/* IfOutOctets */
+
 static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = {
 	{ 0,  0, 4, "IfInOctets"				},
 	{ 0,  4, 4, "EtherStatsOctets"				},
@@ -1146,6 +1149,13 @@ static int rtl8366rb_sw_reset_port_mibs(struct switch_dev *dev,
 				RTL8366RB_MIB_CTRL_PORT_RESET(val->port_vlan));
 }
 
+static int rtl8366rb_sw_get_port_stats(struct switch_dev *dev, int port,
+					struct switch_port_stats *stats)
+{
+	return (rtl8366_sw_get_port_stats(dev, port, stats,
+				RTL8366RB_MIB_TXB_ID, RTL8366RB_MIB_RXB_ID));
+}
+
 static struct switch_attr rtl8366rb_globals[] = {
 	{
 		.type = SWITCH_TYPE_INT,
@@ -1317,6 +1327,7 @@ static const struct switch_dev_ops rtl8366_ops = {
 	.set_port_pvid = rtl8366_sw_set_port_pvid,
 	.reset_switch = rtl8366_sw_reset_switch,
 	.get_port_link = rtl8366rb_sw_get_port_link,
+	.get_port_stats = rtl8366rb_sw_get_port_stats,
 };
 
 static int rtl8366rb_switch_init(struct rtl8366_smi *smi)

target/linux/generic/files/drivers/net/phy/rtl8366s.c

@@ -181,6 +181,9 @@
 #define RTL8366S_VLAN_FID_SHIFT		12
 #define RTL8366S_VLAN_FID_MASK		0x7
 
+#define RTL8366S_MIB_RXB_ID		0	/* IfInOctets */
+#define RTL8366S_MIB_TXB_ID		20	/* IfOutOctets */
+
 static struct rtl8366_mib_counter rtl8366s_mib_counters[] = {
 	{ 0,  0, 4, "IfInOctets"				},
 	{ 0,  4, 4, "EtherStatsOctets"				},
@@ -982,6 +985,13 @@ static int rtl8366s_sw_reset_port_mibs(struct switch_dev *dev,
 				0, (1 << (val->port_vlan + 3)));
 }
 
+static int rtl8366s_sw_get_port_stats(struct switch_dev *dev, int port,
+                                        struct switch_port_stats *stats)
+{
+	return (rtl8366_sw_get_port_stats(dev, port, stats,
+				RTL8366S_MIB_TXB_ID, RTL8366S_MIB_RXB_ID));
+}
+
 static struct switch_attr rtl8366s_globals[] = {
 	{
 		.type = SWITCH_TYPE_INT,
@@ -1105,6 +1115,7 @@ static const struct switch_dev_ops rtl8366_ops = {
 	.set_port_pvid = rtl8366_sw_set_port_pvid,
 	.reset_switch = rtl8366_sw_reset_switch,
 	.get_port_link = rtl8366s_sw_get_port_link,
+	.get_port_stats = rtl8366s_sw_get_port_stats,
 };
 
 static int rtl8366s_switch_init(struct rtl8366_smi *smi)

target/linux/generic/files/drivers/net/phy/rtl8367.c

@@ -253,6 +253,9 @@ struct rtl8367_initval {
 	u16 val;
 };
 
+#define RTL8367_MIB_RXB_ID		0	/* IfInOctets */
+#define RTL8367_MIB_TXB_ID		20	/* IfOutOctets */
+
 static struct rtl8366_mib_counter rtl8367_mib_counters[] = {
 	{ 0,  0, 4, "IfInOctets"				},
 	{ 0,  4, 2, "Dot3StatsFCSErrors"			},
@@ -1535,6 +1538,13 @@ static int rtl8367_sw_reset_port_mibs(struct switch_dev *dev,
 				RTL8367_MIB_CTRL_PORT_RESET_MASK(port % 8));
 }
 
+static int rtl8367_sw_get_port_stats(struct switch_dev *dev, int port,
+                                        struct switch_port_stats *stats)
+{
+	return (rtl8366_sw_get_port_stats(dev, port, stats,
+				RTL8367_MIB_TXB_ID, RTL8367_MIB_RXB_ID));
+}
+
 static struct switch_attr rtl8367_globals[] = {
 	{
 		.type = SWITCH_TYPE_INT,
@@ -1622,6 +1632,7 @@ static const struct switch_dev_ops rtl8367_sw_ops = {
 	.set_port_pvid = rtl8366_sw_set_port_pvid,
 	.reset_switch = rtl8366_sw_reset_switch,
 	.get_port_link = rtl8367_sw_get_port_link,
+	.get_port_stats = rtl8367_sw_get_port_stats,
 };
 
 static int rtl8367_switch_init(struct rtl8366_smi *smi)

target/linux/generic/files/drivers/net/phy/rtl8367b.c

@@ -235,6 +235,9 @@ struct rtl8367b_initval {
 	u16 val;
 };
 
+#define RTL8367B_MIB_RXB_ID		0	/* IfInOctets */
+#define RTL8367B_MIB_TXB_ID		28	/* IfOutOctets */
+
 static struct rtl8366_mib_counter
 rtl8367b_mib_counters[RTL8367B_NUM_MIB_COUNTERS] = {
 	{0,   0, 4, "ifInOctets"			},
@@ -1302,6 +1305,13 @@ static int rtl8367b_sw_reset_port_mibs(struct switch_dev *dev,
 				RTL8367B_MIB_CTRL0_PORT_RESET_MASK(port % 8));
 }
 
+static int rtl8367b_sw_get_port_stats(struct switch_dev *dev, int port,
+                                        struct switch_port_stats *stats)
+{
+	return (rtl8366_sw_get_port_stats(dev, port, stats,
+				RTL8367B_MIB_TXB_ID, RTL8367B_MIB_RXB_ID));
+}
+
 static struct switch_attr rtl8367b_globals[] = {
 	{
 		.type = SWITCH_TYPE_INT,
@@ -1382,6 +1392,7 @@ static const struct switch_dev_ops rtl8367b_sw_ops = {
 	.set_port_pvid = rtl8366_sw_set_port_pvid,
 	.reset_switch = rtl8366_sw_reset_switch,
 	.get_port_link = rtl8367b_sw_get_port_link,
+	.get_port_stats = rtl8367b_sw_get_port_stats,
 };
 
 static int rtl8367b_switch_init(struct rtl8366_smi *smi)