---
ofproto/ofproto-provider.h | 55 +++++++++++++++++++++++++------------------
ofproto/ofproto.c | 2 +-
ofproto/ofproto.h | 1 -
3 files changed, 33 insertions(+), 25 deletions(-)
diff --git a/ofproto/ofproto-provider.h b/ofproto/ofproto-provider.h
index 0e08d19..72c8c4b 100644
--- a/ofproto/ofproto-provider.h
+++ b/ofproto/ofproto-provider.h
@@ -1339,34 +1339,43 @@ struct ofproto_class {
ofp_port_t realdev_ofp_port, int vid);
/* ## ------------------------ ## */
-/* ## OpenFlow Meter Functions ## */
+/* ## OpenFlow meter functions ## */
/* ## ------------------------ ## */
/* These functions should be NULL if an implementation does not support
- * them. If meter_get_features is non-NULL, then the rest must also
- * be non-NULL. */
- void (*meter_get_features)(const struct ofproto *,
- struct ofputil_meter_features *);
- /* Modifies an existing meter, if the 'ofproto_meter_id *' points to
- * a value other than UINT32_MAX, otherwise adds a new meter. On success
- * a provider meter id is stored at 'ofproto_meter_id *'. All further
- * references to the meter will be made with the returned provider meter id
- * rather than the OpenFlow meter id. The caller does not try to interpret
- * the provider meter id (other than UINT32_MAX signifying an invalid
- * provider meter id), giving the implementation the freedom to either use
- * the OpenFlow meter_id value provided in the meter configuration, or any
- * other value suitable for the implementation.
- * If a meter modification fails, the existing meter configuration is left
- * intact. */
- enum ofperr (*meter_set)(struct ofproto *, ofproto_meter_id *,
- const struct ofputil_meter_config *);
+ * them. They must be all null or all non-null.. */
+
+ /* Initializes 'features' to describe the metering features supported by
+ * 'ofproto'. */
+ void (*meter_get_features)(const struct ofproto *ofproto,
+ struct ofputil_meter_features *features);
+
+ /* If '*id' is UINT32_MAX, adds a new meter with the given 'config'. On
+ * success the function must store a provider meter ID other than
+ * UINT32_MAX in '*id'. All further references to the meter will be made
+ * with the returned provider meter id rather than the OpenFlow meter id.
+ * The caller does not try to interpret the provider meter id, giving the
+ * implementation the freedom to either use the OpenFlow meter_id value
+ * provided in the meter configuration, or any other value suitable for the
+ * implementation.
+ *
+ * If '*id' is a value other than UINT32_MAX, modifies the existing meter
+ * with that meter provider ID to have configuration 'config'. On failure,
+ * the existing meter configuration is left intact. Regardless of success,
+ * any change to '*id' updates the provider meter id used for this
+ * meter. */
+ enum ofperr (*meter_set)(struct ofproto *ofproto, ofproto_meter_id *id,
+ const struct ofputil_meter_config *config);
+
/* Gets the meter and meter band packet and byte counts for maximum of
- * 'stats->n_bands' bands. The caller fills in the other stats values.
- * The band stats are copied to memory at 'stats->bands' provided by the
- * caller. The number of returned band stats is returned in
- * 'stats->n_bands'. */
- enum ofperr (*meter_get)(const struct ofproto *, ofproto_meter_id,
+ * 'stats->n_bands' bands for the meter with provider ID 'id' within
+ * 'ofproto'. The caller fills in the other stats values. The band stats
+ * are copied to memory at 'stats->bands' provided by the caller. The
+ * number of returned band stats is returned in 'stats->n_bands'. */
+ enum ofperr (*meter_get)(const struct ofproto *ofproto,
+ ofproto_meter_id id,
struct ofputil_meter_stats *stats);
+
/* Deletes a meter, making the 'ofproto_meter_id' invalid for any
* further calls. */
void (*meter_del)(struct ofproto *, ofproto_meter_id);
diff --git a/ofproto/ofproto.c b/ofproto/ofproto.c
index f5be583..b09735a 100644
--- a/ofproto/ofproto.c
+++ b/ofproto/ofproto.c
@@ -4353,7 +4353,7 @@ handle_meter_mod(struct ofconn *ofconn, const struct
ofp_header *oh)
for (meter_id = first; meter_id <= last; ++meter_id) {
struct meter *meter = ofproto->meters[meter_id];
if (!meter) {
- continue; /* Skip non-existing meters. */
+ continue;
}
if (!list_is_empty(&meter->rules)) {
diff --git a/ofproto/ofproto.h b/ofproto/ofproto.h
index 5c8cb03..792df89 100644
--- a/ofproto/ofproto.h
+++ b/ofproto/ofproto.h
@@ -430,7 +430,6 @@ bool ofproto_has_vlan_usage_changed(const struct ofproto *);
int ofproto_port_set_realdev(struct ofproto *, ofp_port_t vlandev_ofp_port,
ofp_port_t realdev_ofp_port, int vid);
-/* Returns UINT32_MAX if the given of_meter_id is invalid. */
uint32_t ofproto_get_provider_meter_id(const struct ofproto *,
uint32_t of_meter_id);
--
1.7.2.5
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