[PATCH v3 8/9] net/ioring: implement statistics

[Stephen Hemminger <stephen@networkplumber.org>]

Add support for basic statistics

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 doc/guides/nics/features/ioring.ini |  2 +
 drivers/net/ioring/rte_eth_ioring.c | 57 +++++++++++++++++++++++++++++
 2 files changed, 59 insertions(+)

diff --git a/doc/guides/nics/features/ioring.ini b/doc/guides/nics/features/ioring.ini
index da47062adb..c9a4582d0e 100644
--- a/doc/guides/nics/features/ioring.ini
+++ b/doc/guides/nics/features/ioring.ini
@@ -9,6 +9,8 @@ MTU update           = Y
 Promiscuous mode     = Y
 Allmulticast mode    = Y
 Multiprocess aware   = Y
+Basic stats          = Y
+Stats per queue      = Y
 Linux		     = Y
 x86-64               = Y
 Usage doc            = Y
diff --git a/drivers/net/ioring/rte_eth_ioring.c b/drivers/net/ioring/rte_eth_ioring.c
index d473c3fcbb..83446dc660 100644
--- a/drivers/net/ioring/rte_eth_ioring.c
+++ b/drivers/net/ioring/rte_eth_ioring.c
@@ -364,6 +364,61 @@ eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
 	return 0;
 }
 
+static int
+eth_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+	for (uint16_t i = 0; i < dev->data->nb_rx_queues; i++) {
+		const struct rx_queue *rxq = dev->data->rx_queues[i];
+
+		stats->ipackets += rxq->rx_packets;
+		stats->ibytes += rxq->rx_bytes;
+		stats->ierrors += rxq->rx_errors;
+		stats->rx_nombuf += rxq->rx_nombuf;
+
+		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+			stats->q_ipackets[i] = rxq->rx_packets;
+			stats->q_ibytes[i] = rxq->rx_bytes;
+		}
+	}
+
+	for (uint16_t i = 0; i < dev->data->nb_tx_queues; i++) {
+		const struct tx_queue *txq = dev->data->tx_queues[i];
+
+		stats->opackets += txq->tx_packets;
+		stats->obytes += txq->tx_bytes;
+		stats->oerrors += txq->tx_errors;
+
+		if (i < RTE_ETHDEV_QUEUE_STAT_CNTRS) {
+			stats->q_opackets[i] = txq->tx_packets;
+			stats->q_obytes[i] = txq->tx_bytes;
+		}
+	}
+
+	return 0;
+}
+
+static int
+eth_dev_stats_reset(struct rte_eth_dev *dev)
+{
+	for (uint16_t i = 0; i < dev->data->nb_rx_queues; i++) {
+		struct rx_queue *rxq = dev->data->rx_queues[i];
+
+		rxq->rx_packets = 0;
+		rxq->rx_bytes = 0;
+		rxq->rx_nombuf = 0;
+		rxq->rx_errors = 0;
+	}
+
+	for (uint16_t i = 0; i < dev->data->nb_tx_queues; i++) {
+		struct tx_queue *txq = dev->data->tx_queues[i];
+
+		txq->tx_packets = 0;
+		txq->tx_bytes = 0;
+		txq->tx_errors = 0;
+	}
+	return 0;
+}
+
 static int
 eth_dev_close(struct rte_eth_dev *dev)
 {
@@ -732,6 +787,8 @@ static const struct eth_dev_ops ops = {
 	.promiscuous_disable	= eth_dev_promiscuous_disable,
 	.allmulticast_enable	= eth_dev_allmulticast_enable,
 	.allmulticast_disable	= eth_dev_allmulticast_disable,
+	.stats_get              = eth_dev_stats_get,
+	.stats_reset            = eth_dev_stats_reset,
 	.rx_queue_setup		= eth_rx_queue_setup,
 	.rx_queue_release	= eth_rx_queue_release,
 	.tx_queue_setup		= eth_tx_queue_setup,
-- 
2.47.2