[PATCH v5 15/18] net/axgbe: support generic transmit and receive stats api

[Ravi Kumar <Ravi1.kumar@amd.com>]

This patch adds support for port statistics api defined
for ethernet PMDs.

Signed-off-by: Ravi Kumar <Ravi1.kumar@amd.com>
---
 doc/guides/nics/axgbe.rst          |  1 +
 doc/guides/nics/features/axgbe.ini |  1 +
 drivers/net/axgbe/axgbe_ethdev.c   | 52 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 54 insertions(+)

diff --git a/doc/guides/nics/axgbe.rst b/doc/guides/nics/axgbe.rst
index 009be03..e30f494 100644
--- a/doc/guides/nics/axgbe.rst
+++ b/doc/guides/nics/axgbe.rst
@@ -20,6 +20,7 @@ AXGBE PMD has support for:
 - Base L2 features
 - TSS (Transmit Side Scaling)
 - Promiscuous mode
+- Port statistics
 - Multicast mode
 - RSS (Receive Side Scaling)
 - Checksum offload
diff --git a/doc/guides/nics/features/axgbe.ini b/doc/guides/nics/features/axgbe.ini
index 9f4d38f..042ff1e 100644
--- a/doc/guides/nics/features/axgbe.ini
+++ b/doc/guides/nics/features/axgbe.ini
@@ -13,5 +13,6 @@ RSS hash             = Y
 CRC offload          = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
+Basic stats          = Y
 Linux UIO            = Y
 x86-64               = Y
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index e5495bd..8c7b0ee 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -21,6 +21,9 @@ static void axgbe_dev_allmulticast_enable(struct rte_eth_dev *dev);
 static void axgbe_dev_allmulticast_disable(struct rte_eth_dev *dev);
 static int axgbe_dev_link_update(struct rte_eth_dev *dev,
 				 int wait_to_complete);
+static int axgbe_dev_stats_get(struct rte_eth_dev *dev,
+				struct rte_eth_stats *stats);
+static void axgbe_dev_stats_reset(struct rte_eth_dev *dev);
 static void axgbe_dev_info_get(struct rte_eth_dev *dev,
 			       struct rte_eth_dev_info *dev_info);
 
@@ -82,6 +85,8 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
 	.allmulticast_enable  = axgbe_dev_allmulticast_enable,
 	.allmulticast_disable = axgbe_dev_allmulticast_disable,
 	.link_update          = axgbe_dev_link_update,
+	.stats_get            = axgbe_dev_stats_get,
+	.stats_reset          = axgbe_dev_stats_reset,
 	.dev_infos_get        = axgbe_dev_info_get,
 	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
 	.rx_queue_release     = axgbe_dev_rx_queue_release,
@@ -294,6 +299,53 @@ axgbe_dev_link_update(struct rte_eth_dev *dev,
 	return ret;
 }
 
+static int
+axgbe_dev_stats_get(struct rte_eth_dev *dev,
+		    struct rte_eth_stats *stats)
+{
+	struct axgbe_rx_queue *rxq;
+	struct axgbe_tx_queue *txq;
+	unsigned int i;
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		rxq = dev->data->rx_queues[i];
+		stats->q_ipackets[i] = rxq->pkts;
+		stats->ipackets += rxq->pkts;
+		stats->q_ibytes[i] = rxq->bytes;
+		stats->ibytes += rxq->bytes;
+	}
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		txq = dev->data->tx_queues[i];
+		stats->q_opackets[i] = txq->pkts;
+		stats->opackets += txq->pkts;
+		stats->q_obytes[i] = txq->bytes;
+		stats->obytes += txq->bytes;
+	}
+
+	return 0;
+}
+
+static void
+axgbe_dev_stats_reset(struct rte_eth_dev *dev)
+{
+	struct axgbe_rx_queue *rxq;
+	struct axgbe_tx_queue *txq;
+	unsigned int i;
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		rxq = dev->data->rx_queues[i];
+		rxq->pkts = 0;
+		rxq->bytes = 0;
+		rxq->errors = 0;
+	}
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		txq = dev->data->tx_queues[i];
+		txq->pkts = 0;
+		txq->bytes = 0;
+		txq->errors = 0;
+	}
+}
+
 static void
 axgbe_dev_info_get(struct rte_eth_dev *dev,
 		   struct rte_eth_dev_info *dev_info)
-- 
2.7.4