[dpdk-dev] [PATCH v4 6/9] cxgbe: add port statistics for cxgbe PMD.

[Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>]

Adds stats_get() and stats_reset() eth_dev_ops for cxgbe poll mode driver.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Kumar Sanghvi <kumaras@chelsio.com>
---
v4:
- No changes.

v3:
- No changes.

v2:
- This patch is a subset of patch 2/5 submitted in v1.

 drivers/net/cxgbe/cxgbe.h        |  2 +
 drivers/net/cxgbe/cxgbe_ethdev.c | 83 ++++++++++++++++++++++++++++++++++++++++
 drivers/net/cxgbe/cxgbe_main.c   | 11 ++++++
 3 files changed, 96 insertions(+)

diff --git a/drivers/net/cxgbe/cxgbe.h b/drivers/net/cxgbe/cxgbe.h
index bf08baf..97c37d2 100644
--- a/drivers/net/cxgbe/cxgbe.h
+++ b/drivers/net/cxgbe/cxgbe.h
@@ -47,6 +47,8 @@ int cxgbe_probe(struct adapter *adapter);
 int cxgbe_up(struct adapter *adap);
 int cxgbe_down(struct port_info *pi);
 void cxgbe_close(struct adapter *adapter);
+void cxgbe_stats_get(struct port_info *pi, struct port_stats *stats);
+void cxgbe_stats_reset(struct port_info *pi);
 int link_start(struct port_info *pi);
 void init_rspq(struct adapter *adap, struct sge_rspq *q, unsigned int us,
 	       unsigned int cnt, unsigned int size, unsigned int iqe_size);
diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c
index cb100fc..600a16c 100644
--- a/drivers/net/cxgbe/cxgbe_ethdev.c
+++ b/drivers/net/cxgbe/cxgbe_ethdev.c
@@ -500,6 +500,87 @@ static void cxgbe_dev_rx_queue_release(void *q)
 	}
 }
 
+/*
+ * Get port statistics.
+ */
+static void cxgbe_dev_stats_get(struct rte_eth_dev *eth_dev,
+				struct rte_eth_stats *eth_stats)
+{
+	struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
+	struct adapter *adapter = pi->adapter;
+	struct sge *s = &adapter->sge;
+	struct port_stats ps;
+	unsigned int i;
+
+	cxgbe_stats_get(pi, &ps);
+
+	/* RX Stats */
+	eth_stats->ipackets = ps.rx_frames;
+	eth_stats->ibytes   = ps.rx_octets;
+	eth_stats->imcasts  = ps.rx_mcast_frames;
+	eth_stats->imissed  = ps.rx_ovflow0 + ps.rx_ovflow1 +
+			      ps.rx_ovflow2 + ps.rx_ovflow3 +
+			      ps.rx_trunc0 + ps.rx_trunc1 +
+			      ps.rx_trunc2 + ps.rx_trunc3;
+	eth_stats->ibadcrc  = ps.rx_fcs_err;
+	eth_stats->ibadlen  = ps.rx_jabber + ps.rx_too_long + ps.rx_runt;
+	eth_stats->ierrors  = ps.rx_symbol_err + eth_stats->ibadcrc +
+			      eth_stats->ibadlen + ps.rx_len_err +
+			      eth_stats->imissed;
+	eth_stats->rx_pause_xon  = ps.rx_pause;
+
+	/* TX Stats */
+	eth_stats->opackets = ps.tx_frames;
+	eth_stats->obytes   = ps.tx_octets;
+	eth_stats->oerrors  = ps.tx_error_frames;
+	eth_stats->tx_pause_xon  = ps.tx_pause;
+
+	for (i = 0; i < pi->n_rx_qsets; i++) {
+		struct sge_eth_rxq *rxq =
+			&s->ethrxq[pi->first_qset + i];
+
+		eth_stats->q_ipackets[i] = rxq->stats.pkts;
+		eth_stats->q_ibytes[i] = rxq->stats.rx_bytes;
+	}
+
+	for (i = 0; i < pi->n_tx_qsets; i++) {
+		struct sge_eth_txq *txq =
+			&s->ethtxq[pi->first_qset + i];
+
+		eth_stats->q_opackets[i] = txq->stats.pkts;
+		eth_stats->q_obytes[i] = txq->stats.tx_bytes;
+		eth_stats->q_errors[i] = txq->stats.mapping_err;
+	}
+}
+
+/*
+ * Reset port statistics.
+ */
+static void cxgbe_dev_stats_reset(struct rte_eth_dev *eth_dev)
+{
+	struct port_info *pi = (struct port_info *)(eth_dev->data->dev_private);
+	struct adapter *adapter = pi->adapter;
+	struct sge *s = &adapter->sge;
+	unsigned int i;
+
+	cxgbe_stats_reset(pi);
+	for (i = 0; i < pi->n_rx_qsets; i++) {
+		struct sge_eth_rxq *rxq =
+			&s->ethrxq[pi->first_qset + i];
+
+		rxq->stats.pkts = 0;
+		rxq->stats.rx_bytes = 0;
+	}
+	for (i = 0; i < pi->n_tx_qsets; i++) {
+		struct sge_eth_txq *txq =
+			&s->ethtxq[pi->first_qset + i];
+
+		txq->stats.pkts = 0;
+		txq->stats.tx_bytes = 0;
+		txq->stats.mapping_err = 0;
+	}
+}
+
 static struct eth_dev_ops cxgbe_eth_dev_ops = {
 	.dev_start		= cxgbe_dev_start,
 	.dev_stop		= cxgbe_dev_stop,
@@ -514,6 +595,8 @@ static struct eth_dev_ops cxgbe_eth_dev_ops = {
 	.rx_queue_start		= cxgbe_dev_rx_queue_start,
 	.rx_queue_stop		= cxgbe_dev_rx_queue_stop,
 	.rx_queue_release	= cxgbe_dev_rx_queue_release,
+	.stats_get		= cxgbe_dev_stats_get,
+	.stats_reset		= cxgbe_dev_stats_reset,
 };
 
 /*
diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c
index 7995d3c..dad0a98 100644
--- a/drivers/net/cxgbe/cxgbe_main.c
+++ b/drivers/net/cxgbe/cxgbe_main.c
@@ -310,6 +310,17 @@ void cfg_queues(struct rte_eth_dev *eth_dev)
 	}
 }
 
+void cxgbe_stats_get(struct port_info *pi, struct port_stats *stats)
+{
+	t4_get_port_stats_offset(pi->adapter, pi->tx_chan, stats,
+				 &pi->stats_base);
+}
+
+void cxgbe_stats_reset(struct port_info *pi)
+{
+	t4_clr_port_stats(pi->adapter, pi->tx_chan);
+}
+
 static void setup_memwin(struct adapter *adap)
 {
 	u32 mem_win0_base;
-- 
2.4.1