void task_gen_set_pkt_count(struct task_base *tbase, uint32_t count);
int task_gen_set_pkt_size(struct task_base *tbase, uint32_t pkt_size);
+int task_gen_set_imix(struct task_base *tbase, uint32_t nb_pkts, uint32_t *pkt_size);
void task_gen_set_rate(struct task_base *tbase, uint64_t bps);
void task_gen_reset_randoms(struct task_base *tbase);
void task_gen_reset_values(struct task_base *tbase);