[PATCH net-next 2/3] qlcnic: Adding mac statistics to ethtool.

[Anirban Chakraborty <anirban.chakraborty@qlogic.com>]

From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |   56 ++++++++-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c    |   73 ++++++++++-
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    |  127 +++++++++++++++++---
 3 files changed, 226 insertions(+), 30 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index f419965..a7e2f74 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -607,6 +607,7 @@ struct qlcnic_recv_context {
 #define QLCNIC_CDRP_CMD_CONFIG_PORT		0x0000002E
 #define QLCNIC_CDRP_CMD_TEMP_SIZE		0x0000002f
 #define QLCNIC_CDRP_CMD_GET_TEMP_HDR		0x00000030
+#define QLCNIC_CDRP_CMD_GET_MAC_STATS		0x00000037
 
 #define QLCNIC_RCODE_SUCCESS		0
 #define QLCNIC_RCODE_NOT_SUPPORTED	9
@@ -1180,18 +1181,62 @@ struct qlcnic_esw_func_cfg {
 #define QLCNIC_STATS_ESWITCH		2
 #define QLCNIC_QUERY_RX_COUNTER		0
 #define QLCNIC_QUERY_TX_COUNTER		1
-#define QLCNIC_ESW_STATS_NOT_AVAIL	0xffffffffffffffffULL
+#define QLCNIC_STATS_NOT_AVAIL	0xffffffffffffffffULL
+#define QLCNIC_FILL_STATS(VAL1) \
+	(((VAL1) == QLCNIC_STATS_NOT_AVAIL) ? 0 : VAL1)
+#define QLCNIC_MAC_STATS 1
+#define QLCNIC_ESW_STATS 2
 
 #define QLCNIC_ADD_ESW_STATS(VAL1, VAL2)\
 do {	\
-	if (((VAL1) == QLCNIC_ESW_STATS_NOT_AVAIL) && \
-	    ((VAL2) != QLCNIC_ESW_STATS_NOT_AVAIL)) \
+	if (((VAL1) == QLCNIC_STATS_NOT_AVAIL) && \
+	    ((VAL2) != QLCNIC_STATS_NOT_AVAIL)) \
 		(VAL1) = (VAL2); \
-	else if (((VAL1) != QLCNIC_ESW_STATS_NOT_AVAIL) && \
-		 ((VAL2) != QLCNIC_ESW_STATS_NOT_AVAIL)) \
+	else if (((VAL1) != QLCNIC_STATS_NOT_AVAIL) && \
+		 ((VAL2) != QLCNIC_STATS_NOT_AVAIL)) \
 			(VAL1) += (VAL2); \
 } while (0)
 
+struct qlcnic_mac_statistics{
+	__le64	mac_tx_frames;
+	__le64	mac_tx_bytes;
+	__le64	mac_tx_mcast_pkts;
+	__le64	mac_tx_bcast_pkts;
+	__le64	mac_tx_pause_cnt;
+	__le64	mac_tx_ctrl_pkt;
+	__le64	mac_tx_lt_64b_pkts;
+	__le64	mac_tx_lt_127b_pkts;
+	__le64	mac_tx_lt_255b_pkts;
+	__le64	mac_tx_lt_511b_pkts;
+	__le64	mac_tx_lt_1023b_pkts;
+	__le64	mac_tx_lt_1518b_pkts;
+	__le64	mac_tx_gt_1518b_pkts;
+	__le64	rsvd1[3];
+
+	__le64	mac_rx_frames;
+	__le64	mac_rx_bytes;
+	__le64	mac_rx_mcast_pkts;
+	__le64	mac_rx_bcast_pkts;
+	__le64	mac_rx_pause_cnt;
+	__le64	mac_rx_ctrl_pkt;
+	__le64	mac_rx_lt_64b_pkts;
+	__le64	mac_rx_lt_127b_pkts;
+	__le64	mac_rx_lt_255b_pkts;
+	__le64	mac_rx_lt_511b_pkts;
+	__le64	mac_rx_lt_1023b_pkts;
+	__le64	mac_rx_lt_1518b_pkts;
+	__le64	mac_rx_gt_1518b_pkts;
+	__le64	rsvd2[3];
+
+	__le64	mac_rx_length_error;
+	__le64	mac_rx_length_small;
+	__le64	mac_rx_length_large;
+	__le64	mac_rx_jabber;
+	__le64	mac_rx_dropped;
+	__le64	mac_rx_crc_error;
+	__le64	mac_align_error;
+} __packed;
+
 struct __qlcnic_esw_statistics {
 	__le16 context_id;
 	__le16 version;
@@ -1512,6 +1557,7 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *, const u8, const u8,
 int qlcnic_get_eswitch_stats(struct qlcnic_adapter *, const u8, u8,
 					struct __qlcnic_esw_statistics *);
 int qlcnic_clear_esw_stats(struct qlcnic_adapter *adapter, u8, u8, u8);
+int qlcnic_get_mac_stats(struct qlcnic_adapter *, struct qlcnic_mac_statistics *);
 extern int qlcnic_config_tso;
 
 /*
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 569a837..8db8524 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -905,6 +905,65 @@ int qlcnic_get_port_stats(struct qlcnic_adapter *adapter, const u8 func,
 	return err;
 }
 
+/* This routine will retrieve the MAC statistics from firmware */
+int qlcnic_get_mac_stats(struct qlcnic_adapter *adapter,
+		struct qlcnic_mac_statistics *mac_stats)
+{
+	struct qlcnic_mac_statistics *stats;
+	struct qlcnic_cmd_args cmd;
+	size_t stats_size = sizeof(struct qlcnic_mac_statistics);
+	dma_addr_t stats_dma_t;
+	void *stats_addr;
+	int err;
+
+	stats_addr = dma_alloc_coherent(&adapter->pdev->dev, stats_size,
+			&stats_dma_t, GFP_KERNEL);
+	if (!stats_addr) {
+		dev_err(&adapter->pdev->dev,
+			"%s: Unable to allocate memory.\n", __func__);
+		return -ENOMEM;
+	}
+	memset(stats_addr, 0, stats_size);
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = QLCNIC_CDRP_CMD_GET_MAC_STATS;
+	cmd.req.arg1 = stats_size << 16;
+	cmd.req.arg2 = MSD(stats_dma_t);
+	cmd.req.arg3 = LSD(stats_dma_t);
+
+	qlcnic_issue_cmd(adapter, &cmd);
+	err = cmd.rsp.cmd;
+
+	if (!err) {
+		stats = stats_addr;
+		mac_stats->mac_tx_frames = le64_to_cpu(stats->mac_tx_frames);
+		mac_stats->mac_tx_bytes = le64_to_cpu(stats->mac_tx_bytes);
+		mac_stats->mac_tx_mcast_pkts =
+					le64_to_cpu(stats->mac_tx_mcast_pkts);
+		mac_stats->mac_tx_bcast_pkts =
+					le64_to_cpu(stats->mac_tx_bcast_pkts);
+		mac_stats->mac_rx_frames = le64_to_cpu(stats->mac_rx_frames);
+		mac_stats->mac_rx_bytes = le64_to_cpu(stats->mac_rx_bytes);
+		mac_stats->mac_rx_mcast_pkts =
+					le64_to_cpu(stats->mac_rx_mcast_pkts);
+		mac_stats->mac_rx_length_error =
+				le64_to_cpu(stats->mac_rx_length_error);
+		mac_stats->mac_rx_length_small =
+				le64_to_cpu(stats->mac_rx_length_small);
+		mac_stats->mac_rx_length_large =
+				le64_to_cpu(stats->mac_rx_length_large);
+		mac_stats->mac_rx_jabber = le64_to_cpu(stats->mac_rx_jabber);
+		mac_stats->mac_rx_dropped = le64_to_cpu(stats->mac_rx_dropped);
+		mac_stats->mac_rx_crc_error = le64_to_cpu(stats->mac_rx_crc_error);
+	} else {
+		dev_info(&adapter->pdev->dev,
+			"%s: Get mac stats failed =%d.\n", __func__, err);
+	}
+
+	dma_free_coherent(&adapter->pdev->dev, stats_size, stats_addr,
+		stats_dma_t);
+	return err;
+}
+
 int qlcnic_get_eswitch_stats(struct qlcnic_adapter *adapter, const u8 eswitch,
 		const u8 rx_tx, struct __qlcnic_esw_statistics *esw_stats) {
 
@@ -920,13 +979,13 @@ int qlcnic_get_eswitch_stats(struct qlcnic_adapter *adapter, const u8 eswitch,
 		return -EIO;
 
 	memset(esw_stats, 0, sizeof(u64));
-	esw_stats->unicast_frames = QLCNIC_ESW_STATS_NOT_AVAIL;
-	esw_stats->multicast_frames = QLCNIC_ESW_STATS_NOT_AVAIL;
-	esw_stats->broadcast_frames = QLCNIC_ESW_STATS_NOT_AVAIL;
-	esw_stats->dropped_frames = QLCNIC_ESW_STATS_NOT_AVAIL;
-	esw_stats->errors = QLCNIC_ESW_STATS_NOT_AVAIL;
-	esw_stats->local_frames = QLCNIC_ESW_STATS_NOT_AVAIL;
-	esw_stats->numbytes = QLCNIC_ESW_STATS_NOT_AVAIL;
+	esw_stats->unicast_frames = QLCNIC_STATS_NOT_AVAIL;
+	esw_stats->multicast_frames = QLCNIC_STATS_NOT_AVAIL;
+	esw_stats->broadcast_frames = QLCNIC_STATS_NOT_AVAIL;
+	esw_stats->dropped_frames = QLCNIC_STATS_NOT_AVAIL;
+	esw_stats->errors = QLCNIC_STATS_NOT_AVAIL;
+	esw_stats->local_frames = QLCNIC_STATS_NOT_AVAIL;
+	esw_stats->numbytes = QLCNIC_STATS_NOT_AVAIL;
 	esw_stats->context_id = eswitch;
 
 	for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index f19e11e..5f2ad81 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -78,8 +78,46 @@ static const char qlcnic_device_gstrings_stats[][ETH_GSTRING_LEN] = {
 	"tx numbytes",
 };
 
-#define QLCNIC_STATS_LEN	ARRAY_SIZE(qlcnic_gstrings_stats)
+static const char qlcnic_mac_stats_strings [][ETH_GSTRING_LEN] = {
+	"mac_tx_frames",
+	"mac_tx_bytes",
+	"mac_tx_mcast_pkts",
+	"mac_tx_bcast_pkts",
+	"mac_tx_pause_cnt",
+	"mac_tx_ctrl_pkt",
+	"mac_tx_lt_64b_pkts",
+	"mac_tx_lt_127b_pkts",
+	"mac_tx_lt_255b_pkts",
+	"mac_tx_lt_511b_pkts",
+	"mac_tx_lt_1023b_pkts",
+	"mac_tx_lt_1518b_pkts",
+	"mac_tx_gt_1518b_pkts",
+	"mac_rx_frames",
+	"mac_rx_bytes",
+	"mac_rx_mcast_pkts",
+	"mac_rx_bcast_pkts",
+	"mac_rx_pause_cnt",
+	"mac_rx_ctrl_pkt",
+	"mac_rx_lt_64b_pkts",
+	"mac_rx_lt_127b_pkts",
+	"mac_rx_lt_255b_pkts",
+	"mac_rx_lt_511b_pkts",
+	"mac_rx_lt_1023b_pkts",
+	"mac_rx_lt_1518b_pkts",
+	"mac_rx_gt_1518b_pkts",
+	"mac_rx_length_error",
+	"mac_rx_length_small",
+	"mac_rx_length_large",
+	"mac_rx_jabber",
+	"mac_rx_dropped",
+	"mac_rx_crc_error",
+	"mac_align_error",
+};
+
+#define QLCNIC_STATS_LEN ARRAY_SIZE(qlcnic_gstrings_stats)
+#define QLCNIC_MAC_STATS_LEN ARRAY_SIZE(qlcnic_mac_stats_strings)
 #define QLCNIC_DEVICE_STATS_LEN	ARRAY_SIZE(qlcnic_device_gstrings_stats)
+#define QLCNIC_TOTAL_STATS_LEN QLCNIC_STATS_LEN + QLCNIC_MAC_STATS_LEN
 
 static const char qlcnic_gstrings_test[][ETH_GSTRING_LEN] = {
 	"Register_Test_on_offline",
@@ -644,8 +682,8 @@ static int qlcnic_get_sset_count(struct net_device *dev, int sset)
 		return QLCNIC_TEST_LEN;
 	case ETH_SS_STATS:
 		if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
-			return QLCNIC_STATS_LEN + QLCNIC_DEVICE_STATS_LEN;
-		return QLCNIC_STATS_LEN;
+			return QLCNIC_TOTAL_STATS_LEN + QLCNIC_DEVICE_STATS_LEN;
+		return QLCNIC_TOTAL_STATS_LEN;
 	default:
 		return -EOPNOTSUPP;
 	}
@@ -851,7 +889,7 @@ static void
 qlcnic_get_strings(struct net_device *dev, u32 stringset, u8 * data)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
-	int index, i;
+	int index, i, j;
 
 	switch (stringset) {
 	case ETH_SS_TEST:
@@ -864,6 +902,11 @@ qlcnic_get_strings(struct net_device *dev, u32 stringset, u8 * data)
 			       qlcnic_gstrings_stats[index].stat_string,
 			       ETH_GSTRING_LEN);
 		}
+		for (j = 0; j < QLCNIC_MAC_STATS_LEN; index++, j++) {
+			memcpy(data + index * ETH_GSTRING_LEN,
+			       qlcnic_mac_stats_strings[j],
+			       ETH_GSTRING_LEN);
+		}
 		if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 			return;
 		for (i = 0; i < QLCNIC_DEVICE_STATS_LEN; index++, i++) {
@@ -874,22 +917,64 @@ qlcnic_get_strings(struct net_device *dev, u32 stringset, u8 * data)
 	}
 }
 
-#define QLCNIC_FILL_ESWITCH_STATS(VAL1) \
-	(((VAL1) == QLCNIC_ESW_STATS_NOT_AVAIL) ? 0 : VAL1)
-
 static void
-qlcnic_fill_device_stats(int *index, u64 *data,
-		struct __qlcnic_esw_statistics *stats)
+qlcnic_fill_stats(int *index, u64 *data, void *stats, int type)
 {
 	int ind = *index;
 
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->unicast_frames);
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->multicast_frames);
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->broadcast_frames);
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->dropped_frames);
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->errors);
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->local_frames);
-	data[ind++] = QLCNIC_FILL_ESWITCH_STATS(stats->numbytes);
+	if (type == QLCNIC_MAC_STATS) {
+		struct qlcnic_mac_statistics *mac_stats =
+					(struct qlcnic_mac_statistics *)stats;
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_frames);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_bytes);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_mcast_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_bcast_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_pause_cnt);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_ctrl_pkt);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_lt_64b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_lt_127b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_lt_255b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_tx_lt_511b_pkts);
+		data[ind++] =
+			QLCNIC_FILL_STATS(mac_stats->mac_tx_lt_1023b_pkts);
+		data[ind++] =
+			QLCNIC_FILL_STATS(mac_stats->mac_tx_lt_1518b_pkts);
+		data[ind++] =
+			QLCNIC_FILL_STATS(mac_stats->mac_tx_gt_1518b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_frames);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_bytes);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_mcast_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_bcast_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_pause_cnt);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_ctrl_pkt);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_lt_64b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_lt_127b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_lt_255b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_lt_511b_pkts);
+		data[ind++] =
+			QLCNIC_FILL_STATS(mac_stats->mac_rx_lt_1023b_pkts);
+		data[ind++] =
+			QLCNIC_FILL_STATS(mac_stats->mac_rx_lt_1518b_pkts);
+		data[ind++] =
+			QLCNIC_FILL_STATS(mac_stats->mac_rx_gt_1518b_pkts);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_length_error);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_length_small);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_length_large);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_jabber);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_dropped);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_rx_crc_error);
+		data[ind++] = QLCNIC_FILL_STATS(mac_stats->mac_align_error);
+	} else if (type == QLCNIC_ESW_STATS) {
+		struct __qlcnic_esw_statistics *esw_stats =
+				(struct __qlcnic_esw_statistics *)stats;
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->unicast_frames);
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->multicast_frames);
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->broadcast_frames);
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->dropped_frames);
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->errors);
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->local_frames);
+		data[ind++] = QLCNIC_FILL_STATS(esw_stats->numbytes);
+	}
 
 	*index = ind;
 }
@@ -900,6 +985,7 @@ qlcnic_get_ethtool_stats(struct net_device *dev,
 {
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
 	struct qlcnic_esw_statistics port_stats;
+	struct qlcnic_mac_statistics mac_stats;
 	int index, ret;
 
 	for (index = 0; index < QLCNIC_STATS_LEN; index++) {
@@ -911,6 +997,11 @@ qlcnic_get_ethtool_stats(struct net_device *dev,
 		     sizeof(u64)) ? *(u64 *)p:(*(u32 *)p);
 	}
 
+	/* Retrieve MAC statistics from firmware */
+	memset(&mac_stats, 0, sizeof(struct qlcnic_mac_statistics));
+	qlcnic_get_mac_stats(adapter, &mac_stats);
+	qlcnic_fill_stats(&index, data, &mac_stats, QLCNIC_MAC_STATS);
+
 	if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
 		return;
 
@@ -920,14 +1011,14 @@ qlcnic_get_ethtool_stats(struct net_device *dev,
 	if (ret)
 		return;
 
-	qlcnic_fill_device_stats(&index, data, &port_stats.rx);
+	qlcnic_fill_stats(&index, data, &port_stats.rx, QLCNIC_ESW_STATS);
 
 	ret = qlcnic_get_port_stats(adapter, adapter->ahw->pci_func,
 			QLCNIC_QUERY_TX_COUNTER, &port_stats.tx);
 	if (ret)
 		return;
 
-	qlcnic_fill_device_stats(&index, data, &port_stats.tx);
+	qlcnic_fill_stats(&index, data, &port_stats.tx, QLCNIC_ESW_STATS);
 }
 
 static int qlcnic_set_led(struct net_device *dev,
-- 
1.7.4.1