diff options
Diffstat (limited to 'VNFs/DPPD-PROX/packet_utils.h')
| -rw-r--r-- | VNFs/DPPD-PROX/packet_utils.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/VNFs/DPPD-PROX/packet_utils.h b/VNFs/DPPD-PROX/packet_utils.h index d6e2dbb9..a111b944 100644 --- a/VNFs/DPPD-PROX/packet_utils.h +++ b/VNFs/DPPD-PROX/packet_utils.h @@ -60,13 +60,22 @@ struct l3_base { struct rte_hash *ip_hash; struct arp_table *arp_table; struct rte_mempool *arp_pool; + uint seed; }; void task_init_l3(struct task_base *tbase, struct task_args *targ); void task_start_l3(struct task_base *tbase, struct task_args *targ); -int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_dst); +int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_dst, uint64_t **time); void task_set_gateway_ip(struct task_base *tbase, uint32_t ip); void task_set_local_ip(struct task_base *tbase, uint32_t ip); void handle_ctrl_plane_pkts(struct task_base *tbase, struct rte_mbuf **mbufs, uint16_t n_pkts); +static inline void update_arp_update_time(struct l3_base *l3, uint64_t *ptr, uint32_t base) +{ + // randomize timers - from 0.5 to 1.5 * configured time + const uint64_t hz = rte_get_tsc_hz(); + uint64_t tsc = rte_rdtsc(); + uint64_t rand = 500 + (1000L * rand_r(&l3->seed)) / RAND_MAX; + *ptr = tsc + (base * rand / 1000) * hz / 1000; +} #endif /* _PACKET_UTILS_H_ */ |