Make rte_sched statistics API work like the ethernet statistics API.
Don't auto-clear statistics when read.
Signed-off-by: Stephen Hemminger <stephen at networkplumber.org>
--- a/lib/librte_sched/rte_sched.c 2014-12-08 09:29:49.014821607 -0800
+++ b/lib/librte_sched/rte_sched.c 2014-12-08 09:35:45.568568267 -0800
@@ -924,9 +924,8 @@ rte_sched_subport_read_stats(struct rte_
}
s = port->subport + subport_id;
- /* Copy subport stats and clear */
- memcpy(stats, &s->stats, sizeof(struct rte_sched_subport_stats));
- memset(&s->stats, 0, sizeof(struct rte_sched_subport_stats));
+ /* Copy subport stats */
+ *stats = s->stats;
/* Subport TC ovesubscription status */
*tc_ov = s->tc_ov;
@@ -935,6 +934,21 @@ rte_sched_subport_read_stats(struct rte_
}
int
+rte_sched_subport_stats_reset(struct rte_sched_port *port,
+ uint32_t subport_id)
+{
+ struct rte_sched_subport *s;
+
+ /* Check user parameters */
+ if (port == NULL || subport_id >= port->n_subports_per_port)
+ return -1;
+
+ s = port->subport + subport_id;
+ memset(&s->stats, 0, sizeof(struct rte_sched_subport_stats));
+ return 0;
+}
+
+int
rte_sched_queue_read_stats(struct rte_sched_port *port,
uint32_t queue_id,
struct rte_sched_queue_stats *stats,
@@ -953,9 +967,8 @@ rte_sched_queue_read_stats(struct rte_sc
q = port->queue + queue_id;
qe = port->queue_extra + queue_id;
- /* Copy queue stats and clear */
- memcpy(stats, &qe->stats, sizeof(struct rte_sched_queue_stats));
- memset(&qe->stats, 0, sizeof(struct rte_sched_queue_stats));
+ /* Copy queue stats */
+ *stats = qe->stats;
/* Queue length */
*qlen = q->qw - q->qr;
@@ -963,6 +976,21 @@ rte_sched_queue_read_stats(struct rte_sc
return 0;
}
+int
+rte_sched_queue_stats_reset(struct rte_sched_port *port,
+ uint32_t queue_id)
+{
+ struct rte_sched_queue_extra *qe;
+
+ /* Check user parameters */
+ if (port == NULL || queue_id >= rte_sched_port_queues_per_port(port))
+ return -1;
+
+ qe = port->queue_extra + queue_id;
+ memset(&qe->stats, 0, sizeof(struct rte_sched_queue_stats));
+ return 0;
+}
+
static inline uint32_t
rte_sched_port_qindex(struct rte_sched_port *port, uint32_t subport, uint32_t
pipe, uint32_t traffic_class, uint32_t queue)
{
--- a/lib/librte_sched/rte_sched.h 2014-12-08 09:29:49.014821607 -0800
+++ b/lib/librte_sched/rte_sched.h 2014-12-08 09:30:29.426977482 -0800
@@ -312,6 +312,21 @@ rte_sched_subport_read_stats(struct rte_
struct rte_sched_subport_stats *stats,
uint32_t *tc_ov);
+
+/**
+ * Hierarchical scheduler subport statistics reset
+ *
+ * @param port
+ * Handle to port scheduler instance
+ * @param subport_id
+ * Subport ID
+ * @return
+ * 0 upon success, error code otherwise
+ */
+int
+rte_sched_subport_stats_reset(struct rte_sched_port *port,
+ uint32_t subport_id);
+
/**
* Hierarchical scheduler queue statistics read
*
@@ -333,6 +348,20 @@ rte_sched_queue_read_stats(struct rte_sc
struct rte_sched_queue_stats *stats,
uint16_t *qlen);
+/**
+ * Hierarchical scheduler queue statistics reset
+ *
+ * @param port
+ * Handle to port scheduler instance
+ * @param queue_id
+ * Queue ID within port scheduler
+ * @return
+ * 0 upon success, error code otherwise
+ */
+int
+rte_sched_queue_stats_reset(struct rte_sched_port *port,
+ uint32_t queue_id);
+
/*
* Run-time
*
