lan743x: Add support for ethtool statistics

Implement ethtool statistics

Signed-off-by: Bryan Whitehead <Bryan.Whitehead@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 214 insertions, 3 deletions

diff --git a/drivers/net/ethernet/microchip/lan743x_ethtool.c b/drivers/net/ethernet/microchip/lan743x_ethtool.c
index 5c4582c209af..9ed9711c7df0 100644
--- a/drivers/net/ethernet/microchip/lan743x_ethtool.c
+++ b/drivers/net/ethernet/microchip/lan743x_ethtool.c
@@ -17,10 +17,190 @@ static void lan743x_ethtool_get_drvinfo(struct net_device *netdev,
 		pci_name(adapter->pdev), sizeof(info->bus_info));
 }
 
+static const char lan743x_set0_hw_cnt_strings[][ETH_GSTRING_LEN] = {
+	"RX FCS Errors",
+	"RX Alignment Errors",
+	"Rx Fragment Errors",
+	"RX Jabber Errors",
+	"RX Undersize Frame Errors",
+	"RX Oversize Frame Errors",
+	"RX Dropped Frames",
+	"RX Unicast Byte Count",
+	"RX Broadcast Byte Count",
+	"RX Multicast Byte Count",
+	"RX Unicast Frames",
+	"RX Broadcast Frames",
+	"RX Multicast Frames",
+	"RX Pause Frames",
+	"RX 64 Byte Frames",
+	"RX 65 - 127 Byte Frames",
+	"RX 128 - 255 Byte Frames",
+	"RX 256 - 511 Bytes Frames",
+	"RX 512 - 1023 Byte Frames",
+	"RX 1024 - 1518 Byte Frames",
+	"RX Greater 1518 Byte Frames",
+};
+
+static const char lan743x_set1_sw_cnt_strings[][ETH_GSTRING_LEN] = {
+	"RX Queue 0 Frames",
+	"RX Queue 1 Frames",
+	"RX Queue 2 Frames",
+	"RX Queue 3 Frames",
+};
+
+static const char lan743x_set2_hw_cnt_strings[][ETH_GSTRING_LEN] = {
+	"RX Total Frames",
+	"EEE RX LPI Transitions",
+	"EEE RX LPI Time",
+	"RX Counter Rollover Status",
+	"TX FCS Errors",
+	"TX Excess Deferral Errors",
+	"TX Carrier Errors",
+	"TX Bad Byte Count",
+	"TX Single Collisions",
+	"TX Multiple Collisions",
+	"TX Excessive Collision",
+	"TX Late Collisions",
+	"TX Unicast Byte Count",
+	"TX Broadcast Byte Count",
+	"TX Multicast Byte Count",
+	"TX Unicast Frames",
+	"TX Broadcast Frames",
+	"TX Multicast Frames",
+	"TX Pause Frames",
+	"TX 64 Byte Frames",
+	"TX 65 - 127 Byte Frames",
+	"TX 128 - 255 Byte Frames",
+	"TX 256 - 511 Bytes Frames",
+	"TX 512 - 1023 Byte Frames",
+	"TX 1024 - 1518 Byte Frames",
+	"TX Greater 1518 Byte Frames",
+	"TX Total Frames",
+	"EEE TX LPI Transitions",
+	"EEE TX LPI Time",
+	"TX Counter Rollover Status",
+};
+
+static const u32 lan743x_set0_hw_cnt_addr[] = {
+	STAT_RX_FCS_ERRORS,
+	STAT_RX_ALIGNMENT_ERRORS,
+	STAT_RX_FRAGMENT_ERRORS,
+	STAT_RX_JABBER_ERRORS,
+	STAT_RX_UNDERSIZE_FRAME_ERRORS,
+	STAT_RX_OVERSIZE_FRAME_ERRORS,
+	STAT_RX_DROPPED_FRAMES,
+	STAT_RX_UNICAST_BYTE_COUNT,
+	STAT_RX_BROADCAST_BYTE_COUNT,
+	STAT_RX_MULTICAST_BYTE_COUNT,
+	STAT_RX_UNICAST_FRAMES,
+	STAT_RX_BROADCAST_FRAMES,
+	STAT_RX_MULTICAST_FRAMES,
+	STAT_RX_PAUSE_FRAMES,
+	STAT_RX_64_BYTE_FRAMES,
+	STAT_RX_65_127_BYTE_FRAMES,
+	STAT_RX_128_255_BYTE_FRAMES,
+	STAT_RX_256_511_BYTES_FRAMES,
+	STAT_RX_512_1023_BYTE_FRAMES,
+	STAT_RX_1024_1518_BYTE_FRAMES,
+	STAT_RX_GREATER_1518_BYTE_FRAMES,
+};
+
+static const u32 lan743x_set2_hw_cnt_addr[] = {
+	STAT_RX_TOTAL_FRAMES,
+	STAT_EEE_RX_LPI_TRANSITIONS,
+	STAT_EEE_RX_LPI_TIME,
+	STAT_RX_COUNTER_ROLLOVER_STATUS,
+	STAT_TX_FCS_ERRORS,
+	STAT_TX_EXCESS_DEFERRAL_ERRORS,
+	STAT_TX_CARRIER_ERRORS,
+	STAT_TX_BAD_BYTE_COUNT,
+	STAT_TX_SINGLE_COLLISIONS,
+	STAT_TX_MULTIPLE_COLLISIONS,
+	STAT_TX_EXCESSIVE_COLLISION,
+	STAT_TX_LATE_COLLISIONS,
+	STAT_TX_UNICAST_BYTE_COUNT,
+	STAT_TX_BROADCAST_BYTE_COUNT,
+	STAT_TX_MULTICAST_BYTE_COUNT,
+	STAT_TX_UNICAST_FRAMES,
+	STAT_TX_BROADCAST_FRAMES,
+	STAT_TX_MULTICAST_FRAMES,
+	STAT_TX_PAUSE_FRAMES,
+	STAT_TX_64_BYTE_FRAMES,
+	STAT_TX_65_127_BYTE_FRAMES,
+	STAT_TX_128_255_BYTE_FRAMES,
+	STAT_TX_256_511_BYTES_FRAMES,
+	STAT_TX_512_1023_BYTE_FRAMES,
+	STAT_TX_1024_1518_BYTE_FRAMES,
+	STAT_TX_GREATER_1518_BYTE_FRAMES,
+	STAT_TX_TOTAL_FRAMES,
+	STAT_EEE_TX_LPI_TRANSITIONS,
+	STAT_EEE_TX_LPI_TIME,
+	STAT_TX_COUNTER_ROLLOVER_STATUS
+};
+
+static void lan743x_ethtool_get_strings(struct net_device *netdev,
+					u32 stringset, u8 *data)
+{
+	switch (stringset) {
+	case ETH_SS_STATS:
+		memcpy(data, lan743x_set0_hw_cnt_strings,
+		       sizeof(lan743x_set0_hw_cnt_strings));
+		memcpy(&data[sizeof(lan743x_set0_hw_cnt_strings)],
+		       lan743x_set1_sw_cnt_strings,
+		       sizeof(lan743x_set1_sw_cnt_strings));
+		memcpy(&data[sizeof(lan743x_set0_hw_cnt_strings) +
+		       sizeof(lan743x_set1_sw_cnt_strings)],
+		       lan743x_set2_hw_cnt_strings,
+		       sizeof(lan743x_set2_hw_cnt_strings));
+		break;
+	}
+}
+
+static void lan743x_ethtool_get_ethtool_stats(struct net_device *netdev,
+					      struct ethtool_stats *stats,
+					      u64 *data)
+{
+	struct lan743x_adapter *adapter = netdev_priv(netdev);
+	int data_index = 0;
+	u32 buf;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(lan743x_set0_hw_cnt_addr); i++) {
+		buf = lan743x_csr_read(adapter, lan743x_set0_hw_cnt_addr[i]);
+		data[data_index++] = (u64)buf;
+	}
+	for (i = 0; i < ARRAY_SIZE(adapter->rx); i++)
+		data[data_index++] = (u64)(adapter->rx[i].frame_count);
+	for (i = 0; i < ARRAY_SIZE(lan743x_set2_hw_cnt_addr); i++) {
+		buf = lan743x_csr_read(adapter, lan743x_set2_hw_cnt_addr[i]);
+		data[data_index++] = (u64)buf;
+	}
+}
+
+static int lan743x_ethtool_get_sset_count(struct net_device *netdev, int sset)
+{
+	switch (sset) {
+	case ETH_SS_STATS:
+	{
+		int ret;
+
+		ret = ARRAY_SIZE(lan743x_set0_hw_cnt_strings);
+		ret += ARRAY_SIZE(lan743x_set1_sw_cnt_strings);
+		ret += ARRAY_SIZE(lan743x_set2_hw_cnt_strings);
+		return ret;
+	}
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
 const struct ethtool_ops lan743x_ethtool_ops = {
 	.get_drvinfo = lan743x_ethtool_get_drvinfo,
 	.get_link = ethtool_op_get_link,
 
+	.get_strings = lan743x_ethtool_get_strings,
+	.get_ethtool_stats = lan743x_ethtool_get_ethtool_stats,
+	.get_sset_count = lan743x_ethtool_get_sset_count,
 	.get_link_ksettings = phy_ethtool_get_link_ksettings,
 	.set_link_ksettings = phy_ethtool_set_link_ksettings,
 };
diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c
index ade3b04b2de6..1e2f8c67d022 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.c
+++ b/drivers/net/ethernet/microchip/lan743x_main.c
@@ -54,13 +54,13 @@ return_error:
 	return ret;
 }
 
-static u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset)
+u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset)
 {
 	return ioread32(&adapter->csr.csr_address[offset]);
 }
 
-static void lan743x_csr_write(struct lan743x_adapter *adapter, int offset,
-			      u32 data)
+void lan743x_csr_write(struct lan743x_adapter *adapter, int offset,
+		       u32 data)
 {
 	iowrite32(data, &adapter->csr.csr_address[offset]);
 }
diff --git a/drivers/net/ethernet/microchip/lan743x_main.h b/drivers/net/ethernet/microchip/lan743x_main.h
index 73b463a9df61..de4f2cceaad1 100644
--- a/drivers/net/ethernet/microchip/lan743x_main.h
+++ b/drivers/net/ethernet/microchip/lan743x_main.h
@@ -291,6 +291,7 @@
 /* MAC statistics registers */
 #define STAT_RX_FCS_ERRORS			(0x1200)
 #define STAT_RX_ALIGNMENT_ERRORS		(0x1204)
+#define STAT_RX_FRAGMENT_ERRORS			(0x1208)
 #define STAT_RX_JABBER_ERRORS			(0x120C)
 #define STAT_RX_UNDERSIZE_FRAME_ERRORS		(0x1210)
 #define STAT_RX_OVERSIZE_FRAME_ERRORS		(0x1214)
@@ -298,12 +299,26 @@
 #define STAT_RX_UNICAST_BYTE_COUNT		(0x121C)
 #define STAT_RX_BROADCAST_BYTE_COUNT		(0x1220)
 #define STAT_RX_MULTICAST_BYTE_COUNT		(0x1224)
+#define STAT_RX_UNICAST_FRAMES			(0x1228)
+#define STAT_RX_BROADCAST_FRAMES		(0x122C)
 #define STAT_RX_MULTICAST_FRAMES		(0x1230)
+#define STAT_RX_PAUSE_FRAMES			(0x1234)
+#define STAT_RX_64_BYTE_FRAMES			(0x1238)
+#define STAT_RX_65_127_BYTE_FRAMES		(0x123C)
+#define STAT_RX_128_255_BYTE_FRAMES		(0x1240)
+#define STAT_RX_256_511_BYTES_FRAMES		(0x1244)
+#define STAT_RX_512_1023_BYTE_FRAMES		(0x1248)
+#define STAT_RX_1024_1518_BYTE_FRAMES		(0x124C)
+#define STAT_RX_GREATER_1518_BYTE_FRAMES	(0x1250)
 #define STAT_RX_TOTAL_FRAMES			(0x1254)
+#define STAT_EEE_RX_LPI_TRANSITIONS		(0x1258)
+#define STAT_EEE_RX_LPI_TIME			(0x125C)
+#define STAT_RX_COUNTER_ROLLOVER_STATUS		(0x127C)
 
 #define STAT_TX_FCS_ERRORS			(0x1280)
 #define STAT_TX_EXCESS_DEFERRAL_ERRORS		(0x1284)
 #define STAT_TX_CARRIER_ERRORS			(0x1288)
+#define STAT_TX_BAD_BYTE_COUNT			(0x128C)
 #define STAT_TX_SINGLE_COLLISIONS		(0x1290)
 #define STAT_TX_MULTIPLE_COLLISIONS		(0x1294)
 #define STAT_TX_EXCESSIVE_COLLISION		(0x1298)
@@ -311,8 +326,21 @@
 #define STAT_TX_UNICAST_BYTE_COUNT		(0x12A0)
 #define STAT_TX_BROADCAST_BYTE_COUNT		(0x12A4)
 #define STAT_TX_MULTICAST_BYTE_COUNT		(0x12A8)
+#define STAT_TX_UNICAST_FRAMES			(0x12AC)
+#define STAT_TX_BROADCAST_FRAMES		(0x12B0)
 #define STAT_TX_MULTICAST_FRAMES		(0x12B4)
+#define STAT_TX_PAUSE_FRAMES			(0x12B8)
+#define STAT_TX_64_BYTE_FRAMES			(0x12BC)
+#define STAT_TX_65_127_BYTE_FRAMES		(0x12C0)
+#define STAT_TX_128_255_BYTE_FRAMES		(0x12C4)
+#define STAT_TX_256_511_BYTES_FRAMES		(0x12C8)
+#define STAT_TX_512_1023_BYTE_FRAMES		(0x12CC)
+#define STAT_TX_1024_1518_BYTE_FRAMES		(0x12D0)
+#define STAT_TX_GREATER_1518_BYTE_FRAMES	(0x12D4)
 #define STAT_TX_TOTAL_FRAMES			(0x12D8)
+#define STAT_EEE_TX_LPI_TRANSITIONS		(0x12DC)
+#define STAT_EEE_TX_LPI_TIME			(0x12E0)
+#define STAT_TX_COUNTER_ROLLOVER_STATUS		(0x12FC)
 
 /* End of Register definitions */
 
@@ -594,4 +622,7 @@ struct lan743x_rx_buffer_info {
 #define RX_PROCESS_RESULT_PACKET_RECEIVED   (1)
 #define RX_PROCESS_RESULT_PACKET_DROPPED    (2)
 
+u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset);
+void lan743x_csr_write(struct lan743x_adapter *adapter, int offset, u32 data);
+
 #endif /* _LAN743X_H */