5 #ifndef __RTE_PIE_H_INCLUDED__ 6 #define __RTE_PIE_H_INCLUDED__ 23 #define RTE_DQ_THRESHOLD 16384 26 #define RTE_DQ_WEIGHT 0.25 27 #define RTE_ALPHA 0.125 29 #define RTE_RAND_MAX ~0LLU 35 struct rte_pie_params { 37 uint16_t dp_update_interval;
57 uint16_t in_measurement;
58 uint32_t departed_bytes_count;
59 uint64_t start_measurement;
60 uint64_t last_measurement;
64 uint32_t burst_allowance;
120 RTE_ASSERT(pkt_len != 0);
148 struct rte_pie *pie, uint64_t time)
161 p = p * 0.00048828125;
178 double qdelay = qdelay_ref * 0.5;
181 if ((
double)current_qdelay < qdelay && pie->qdelay_old < qdelay)
327 const unsigned int qlen,
331 RTE_ASSERT(pie_cfg != NULL);
332 RTE_ASSERT(pie != NULL);
int rte_pie_rt_data_init(struct rte_pie *pie)
Initialises run-time data.
static int rte_pie_enqueue(const struct rte_pie_config *pie_cfg, struct rte_pie *pie, const unsigned int qlen, uint32_t pkt_len, const uint64_t time)
Decides if new packet should be enqueued or dropped Updates run time data and gives verdict whether t...
uint64_t start_measurement
static int rte_pie_enqueue_empty(const struct rte_pie_config *pie_cfg, struct rte_pie *pie, uint32_t pkt_len)
Decides packet enqueue when queue is empty.
static int rte_pie_enqueue_nonempty(const struct rte_pie_config *pie_cfg, struct rte_pie *pie, uint32_t pkt_len, const uint64_t time)
Decides if new packet should be enqueued or dropped for non-empty queue.
int rte_pie_config_init(struct rte_pie_config *pie_cfg, const uint16_t qdelay_ref, const uint16_t dp_update_interval, const uint16_t max_burst, const uint16_t tailq_th)
Configures a single PIE configuration parameter structure.
static int _rte_pie_drop(const struct rte_pie_config *pie_cfg, struct rte_pie *pie)
make a decision to drop or enqueue a packet based on probability criteria
uint32_t departed_bytes_count
uint64_t dp_update_interval
static void rte_pie_dequeue(struct rte_pie *pie, uint32_t pkt_len, uint64_t time)
PIE rate estimation method Called on each packet departure.
static void _calc_drop_probability(const struct rte_pie_config *pie_cfg, struct rte_pie *pie, uint64_t time)
make a decision to drop or enqueue a packet based on probability criteria
uint64_t last_measurement