ralink: add support for mt7621 switch counters

Signed-off-by: Cristian Morales Vega <cristian@samknows.com>

Backport of r46050

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@46060 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 187 insertions, 1 deletions

diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c
index 1352b2518b..51e16f26b9 100644
--- a/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c
+++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/mt7530.c
@@ -63,6 +63,107 @@ enum {
 
 #define REG_HWTRAP		0x7804
 
+#define MIB_DESC(_s , _o, _n)   \
+	{                       \
+		.size = (_s),   \
+		.offset = (_o), \
+		.name = (_n),   \
+	}
+
+struct mt7xxx_mib_desc {
+	unsigned int size;
+	unsigned int offset;
+	const char *name;
+};
+
+#define MT7621_MIB_COUNTER_BASE	0x4000
+#define MT7621_MIB_COUNTER_PORT_OFFSET	0x100
+#define MT7621_STATS_TDPC	0x00
+#define MT7621_STATS_TCRC	0x04
+#define MT7621_STATS_TUPC	0x08
+#define MT7621_STATS_TMPC	0x0C
+#define MT7621_STATS_TBPC	0x10
+#define MT7621_STATS_TCEC	0x14
+#define MT7621_STATS_TSCEC	0x18
+#define MT7621_STATS_TMCEC	0x1C
+#define MT7621_STATS_TDEC	0x20
+#define MT7621_STATS_TLCEC	0x24
+#define MT7621_STATS_TXCEC	0x28
+#define MT7621_STATS_TPPC	0x2C
+#define MT7621_STATS_TL64PC	0x30
+#define MT7621_STATS_TL65PC	0x34
+#define MT7621_STATS_TL128PC	0x38
+#define MT7621_STATS_TL256PC	0x3C
+#define MT7621_STATS_TL512PC	0x40
+#define MT7621_STATS_TL1024PC	0x44
+#define MT7621_STATS_TOC	0x48
+#define MT7621_STATS_RDPC	0x60
+#define MT7621_STATS_RFPC	0x64
+#define MT7621_STATS_RUPC	0x68
+#define MT7621_STATS_RMPC	0x6C
+#define MT7621_STATS_RBPC	0x70
+#define MT7621_STATS_RAEPC	0x74
+#define MT7621_STATS_RCEPC	0x78
+#define MT7621_STATS_RUSPC	0x7C
+#define MT7621_STATS_RFEPC	0x80
+#define MT7621_STATS_ROSPC	0x84
+#define MT7621_STATS_RJEPC	0x88
+#define MT7621_STATS_RPPC	0x8C
+#define MT7621_STATS_RL64PC	0x90
+#define MT7621_STATS_RL65PC	0x94
+#define MT7621_STATS_RL128PC	0x98
+#define MT7621_STATS_RL256PC	0x9C
+#define MT7621_STATS_RL512PC	0xA0
+#define MT7621_STATS_RL1024PC	0xA4
+#define MT7621_STATS_ROC	0xA8
+#define MT7621_STATS_RDPC_CTRL	0xB0
+#define MT7621_STATS_RDPC_ING	0xB4
+#define MT7621_STATS_RDPC_ARL	0xB8
+
+static const struct mt7xxx_mib_desc mt7621_mibs[] = {
+	MIB_DESC(1, MT7621_STATS_TDPC, "TxDrop"),
+	MIB_DESC(1, MT7621_STATS_TCRC, "TxCRC"),
+	MIB_DESC(1, MT7621_STATS_TUPC, "TxUni"),
+	MIB_DESC(1, MT7621_STATS_TMPC, "TxMulti"),
+	MIB_DESC(1, MT7621_STATS_TBPC, "TxBroad"),
+	MIB_DESC(1, MT7621_STATS_TCEC, "TxCollision"),
+	MIB_DESC(1, MT7621_STATS_TSCEC, "TxSingleCol"),
+	MIB_DESC(1, MT7621_STATS_TMCEC, "TxMultiCol"),
+	MIB_DESC(1, MT7621_STATS_TDEC, "TxDefer"),
+	MIB_DESC(1, MT7621_STATS_TLCEC, "TxLateCol"),
+	MIB_DESC(1, MT7621_STATS_TXCEC, "TxExcCol"),
+	MIB_DESC(1, MT7621_STATS_TPPC, "TxPause"),
+	MIB_DESC(1, MT7621_STATS_TL64PC, "Tx64Byte"),
+	MIB_DESC(1, MT7621_STATS_TL65PC, "Tx65Byte"),
+	MIB_DESC(1, MT7621_STATS_TL128PC, "Tx128Byte"),
+	MIB_DESC(1, MT7621_STATS_TL256PC, "Tx256Byte"),
+	MIB_DESC(1, MT7621_STATS_TL512PC, "Tx512Byte"),
+	MIB_DESC(1, MT7621_STATS_TL1024PC, "Tx1024Byte"),
+	MIB_DESC(2, MT7621_STATS_TOC, "TxByte"),
+	MIB_DESC(1, MT7621_STATS_RDPC, "RxDrop"),
+	MIB_DESC(1, MT7621_STATS_RFPC, "RxFiltered"),
+	MIB_DESC(1, MT7621_STATS_RUPC, "RxUni"),
+	MIB_DESC(1, MT7621_STATS_RMPC, "RxMulti"),
+	MIB_DESC(1, MT7621_STATS_RBPC, "RxBroad"),
+	MIB_DESC(1, MT7621_STATS_RAEPC, "RxAlignErr"),
+	MIB_DESC(1, MT7621_STATS_RCEPC, "RxCRC"),
+	MIB_DESC(1, MT7621_STATS_RUSPC, "RxUnderSize"),
+	MIB_DESC(1, MT7621_STATS_RFEPC, "RxFragment"),
+	MIB_DESC(1, MT7621_STATS_ROSPC, "RxOverSize"),
+	MIB_DESC(1, MT7621_STATS_RJEPC, "RxJabber"),
+	MIB_DESC(1, MT7621_STATS_RPPC, "RxPause"),
+	MIB_DESC(1, MT7621_STATS_RL64PC, "Rx64Byte"),
+	MIB_DESC(1, MT7621_STATS_RL65PC, "Rx65Byte"),
+	MIB_DESC(1, MT7621_STATS_RL128PC, "Rx128Byte"),
+	MIB_DESC(1, MT7621_STATS_RL256PC, "Rx256Byte"),
+	MIB_DESC(1, MT7621_STATS_RL512PC, "Rx512Byte"),
+	MIB_DESC(1, MT7621_STATS_RL1024PC, "Rx1024Byte"),
+	MIB_DESC(2, MT7621_STATS_ROC, "RxByte"),
+	MIB_DESC(1, MT7621_STATS_RDPC_CTRL, "RxCtrlDrop"),
+	MIB_DESC(1, MT7621_STATS_RDPC_ING, "RxIngDrop"),
+	MIB_DESC(1, MT7621_STATS_RDPC_ARL, "RxARLDrop")
+};
+
 enum {
 	/* Global attributes. */
 	MT7530_ATTR_ENABLE_VLAN,
@@ -500,6 +601,63 @@ static const struct switch_attr mt7530_global[] = {
 	},
 };
 
+static u64 get_mib_counter(struct mt7530_priv *priv, int i, int port)
+{
+	unsigned int port_base;
+	u64 t;
+
+	port_base = MT7621_MIB_COUNTER_BASE +
+		    MT7621_MIB_COUNTER_PORT_OFFSET * port;
+
+	t = mt7530_r32(priv, port_base + mt7621_mibs[i].offset);
+	if (mt7621_mibs[i].size == 2) {
+		u64 hi;
+
+		hi = mt7530_r32(priv, port_base + mt7621_mibs[i].offset + 4);
+		t |= hi << 32;
+	}
+
+	return t;
+}
+
+static int mt7621_sw_get_port_mib(struct switch_dev *dev,
+				  const struct switch_attr *attr,
+				  struct switch_val *val)
+{
+	static char buf[4096];
+	struct mt7530_priv *priv = container_of(dev, struct mt7530_priv, swdev);
+	int i, len = 0;
+
+	if (val->port_vlan >= MT7530_NUM_PORTS)
+		return -EINVAL;
+
+	len += snprintf(buf + len, sizeof(buf) - len,
+			"Port %d MIB counters\n", val->port_vlan);
+
+	for (i = 0; i < sizeof(mt7621_mibs) / sizeof(*mt7621_mibs); ++i) {
+		u64 counter;
+		len += snprintf(buf + len, sizeof(buf) - len,
+				"%-11s: ", mt7621_mibs[i].name);
+		counter = get_mib_counter(priv, i, val->port_vlan);
+		len += snprintf(buf + len, sizeof(buf) - len, "%llu\n",
+				counter);
+	}
+
+	val->value.s = buf;
+	val->len = len;
+	return 0;
+}
+
+static const struct switch_attr mt7621_port[] = {
+	{
+		.type = SWITCH_TYPE_STRING,
+		.name = "mib",
+		.description = "Get MIB counters for port",
+		.get = mt7621_sw_get_port_mib,
+		.set = NULL,
+	},
+};
+
 static const struct switch_attr mt7530_port[] = {
 };
 
@@ -514,6 +672,28 @@ static const struct switch_attr mt7530_vlan[] = {
 	},
 };
 
+static const struct switch_dev_ops mt7621_ops = {
+	.attr_global = {
+		.attr = mt7530_global,
+		.n_attr = ARRAY_SIZE(mt7530_global),
+	},
+	.attr_port = {
+		.attr = mt7621_port,
+		.n_attr = ARRAY_SIZE(mt7621_port),
+	},
+	.attr_vlan = {
+		.attr = mt7530_vlan,
+		.n_attr = ARRAY_SIZE(mt7530_vlan),
+	},
+	.get_vlan_ports = mt7530_get_vlan_ports,
+	.set_vlan_ports = mt7530_set_vlan_ports,
+	.get_port_pvid = mt7530_get_port_pvid,
+	.set_port_pvid = mt7530_set_port_pvid,
+	.get_port_link = mt7530_get_port_link,
+	.apply_config = mt7530_apply_config,
+	.reset_switch = mt7530_reset_switch,
+};
+
 static const struct switch_dev_ops mt7530_ops = {
 	.attr_global = {
 		.attr = mt7530_global,
@@ -556,6 +736,9 @@ mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vl
 	if (bus) {
 		swdev->alias = "mt7530";
 		swdev->name = "mt7530";
+	} else if (IS_ENABLED(CONFIG_SOC_MT7621)) {
+		swdev->alias = "mt7621";
+		swdev->name = "mt7621";
 	} else {
 		swdev->alias = "mt7620";
 		swdev->name = "mt7620";
@@ -563,7 +746,10 @@ mt7530_probe(struct device *dev, void __iomem *base, struct mii_bus *bus, int vl
 	swdev->cpu_port = MT7530_CPU_PORT;
 	swdev->ports = MT7530_NUM_PORTS;
 	swdev->vlans = MT7530_NUM_VLANS;
-	swdev->ops = &mt7530_ops;
+	if (IS_ENABLED(CONFIG_SOC_MT7621))
+		swdev->ops = &mt7621_ops;
+	else
+		swdev->ops = &mt7530_ops;
 
 	ret = register_switch(swdev, NULL);
 	if (ret) {