[dpdk-dev] [PATCH v4 07/13] port: added port_ring_reader stats

[Michal Jastrzebski <michalx.k.jastrzebski@intel.com>]

From: Maciej Gajdzica <maciejx.t.gajdzica@intel.com>

Added statistics for ring reader port.

Signed-off-by: Maciej Gajdzica <maciejx.t.gajdzica@intel.com>
---
 lib/librte_port/rte_port_ring.c |   39 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/lib/librte_port/rte_port_ring.c b/lib/librte_port/rte_port_ring.c
index 89b9641..091b052 100644
--- a/lib/librte_port/rte_port_ring.c
+++ b/lib/librte_port/rte_port_ring.c
@@ -42,7 +42,23 @@
 /*
  * Port RING Reader
  */
+#ifdef RTE_PORT_STATS_COLLECT
+
+#define RTE_PORT_RING_READER_STATS_PKTS_IN_ADD(port, val) \
+	port->stats.n_pkts_in += val
+#define RTE_PORT_RING_READER_STATS_PKTS_DROP_ADD(port, val) \
+	port->stats.n_pkts_drop += val
+
+#else
+
+#define RTE_PORT_RING_READER_STATS_PKTS_IN_ADD(port, val)
+#define RTE_PORT_RING_READER_STATS_PKTS_DROP_ADD(port, val)
+
+#endif
+
 struct rte_port_ring_reader {
+	struct rte_port_in_stats stats;
+
 	struct rte_ring *ring;
 };
 
@@ -77,8 +93,12 @@ static int
 rte_port_ring_reader_rx(void *port, struct rte_mbuf **pkts, uint32_t n_pkts)
 {
 	struct rte_port_ring_reader *p = (struct rte_port_ring_reader *) port;
+	uint32_t nb_rx;
 
-	return rte_ring_sc_dequeue_burst(p->ring, (void **) pkts, n_pkts);
+	nb_rx = rte_ring_sc_dequeue_burst(p->ring, (void **) pkts, n_pkts);
+	RTE_PORT_RING_READER_STATS_PKTS_IN_ADD(p, nb_rx);
+
+	return nb_rx;
 }
 
 static int
@@ -94,6 +114,22 @@ rte_port_ring_reader_free(void *port)
 	return 0;
 }
 
+static int
+rte_port_ring_reader_stats_read(void *port,
+		struct rte_port_in_stats *stats, int clear)
+{
+	struct rte_port_ring_reader *p =
+		(struct rte_port_ring_reader *) port;
+
+	if (stats != NULL)
+		memcpy(stats, &p->stats, sizeof(p->stats));
+
+	if (clear)
+		memset(&p->stats, 0, sizeof(p->stats));
+
+	return 0;
+}
+
 /*
  * Port RING Writer
  */
@@ -410,6 +446,7 @@ struct rte_port_in_ops rte_port_ring_reader_ops = {
 	.f_create = rte_port_ring_reader_create,
 	.f_free = rte_port_ring_reader_free,
 	.f_rx = rte_port_ring_reader_rx,
+	.f_stats = rte_port_ring_reader_stats_read,
 };
 
 struct rte_port_out_ops rte_port_ring_writer_ops = {
-- 
1.7.9.5