@@ -135,6 +135,13 @@ typedef struct odp_cls_capability_t {
/** A Boolean to denote support of PMR range */
odp_bool_t pmr_range_supported;
+
+ /** Support for Random Early Detection */
+ odp_support_t random_early_detection;
+
+ /** Support for Back Pressure to the remote peer */
+ odp_support_t back_pressure;
+
} odp_cls_capability_t;
/**
@@ -206,6 +213,53 @@ typedef struct odp_cls_cos_param {
/** Drop policy associated with CoS */
odp_cls_drop_t drop_policy;
+
+ /** Random Early Detection (RED)
+ * Random Early Detection is enabled to initiate a drop probability
+ * for the incoming packet when the packets in the queue/pool reaches
+ * a specified threshold.
+ * When RED is enabled for a particular flow then further incoming
+ * packets are assigned a drop probability based on the size of the
+ * pool/queue and the drop probability becomes 100% when the queue/pool
+ * is full.
+ * RED is logically configured in the CoS and could be implemented
+ * in either pool or queue linked to the CoS depending on
+ * platform capabilities. Application should make sure not to link
+ * multiple CoS with different RED or BP configuration to the same queue
+ * or pool.
+ * RED is enabled when the resource limit is equal to or greater than
+ * the maximum threshold value and is disabled when resource limit
+ * is less than or equal to minimum threshold value. */
+
+ /** A boolean to enable RED
+ * When true, RED is enabled and configured with RED parameters.
+ * Otherwise, RED parameters are ignored. */
+ odp_bool_t red_enable;
+
+ /** RED parameters */
+ struct {
+ /** Maximum threshold value for RED */
+ uint32_t max_threshold;
+
+ /** Minimum threshold value for RED */
+ uint32_t min_threshold;
+ } red;
+
+ /** A boolean to enable Back pressure
+ * When true, back pressure is enabled and configured with the BP
+ * parameters. Otherwise BP parameters are ignored. When back pressure
+ * is enabled for a particular flow, the HW can send back pressure
+ * information to the remote peer indicating a network congestion */
+ odp_bool_t bp_enable;
+
+ /** BP parameters */
+ struct {
+ /** Threshold value for back pressure.
+ * BP is enabled when queue or pool size is equal to or greater
+ * than the backpressure threshold. BP threshold is expressed
+ * as number packets in either queue or pool. */
+ uint32_t bp_threshold;
+ } bp;
} odp_cls_cos_param_t;
/**