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-rw-r--r--VNFs/DPPD-PROX/packet_utils.c23
-rw-r--r--VNFs/DPPD-PROX/packet_utils.h4
-rw-r--r--VNFs/DPPD-PROX/prox_args.c4
-rw-r--r--VNFs/DPPD-PROX/task_init.h2
4 files changed, 26 insertions, 7 deletions
diff --git a/VNFs/DPPD-PROX/packet_utils.c b/VNFs/DPPD-PROX/packet_utils.c
index e93f430c..6c3da0ec 100644
--- a/VNFs/DPPD-PROX/packet_utils.c
+++ b/VNFs/DPPD-PROX/packet_utils.c
@@ -89,7 +89,7 @@ int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_d
return SEND_MBUF;
} else if (tsc > l3->gw.arp_update_time) {
// long time since we have sent an arp, send arp
- l3->gw.arp_update_time = tsc + hz;
+ l3->gw.arp_update_time = tsc + l3->arp_update_time * hz / 1000;
*ip_dst = l3->gw.ip;
if ((l3->flags & FLAG_DST_MAC_KNOWN) && (tsc < l3->gw.arp_timeout)){
// MAC is valid in the table => send also the mbuf
@@ -120,7 +120,7 @@ int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_d
return SEND_MBUF;
} else if (tsc > l3->optimized_arp_table[idx].arp_update_time) {
// ARP not sent since a long time, send ARP
- l3->optimized_arp_table[idx].arp_update_time = tsc + hz;
+ l3->optimized_arp_table[idx].arp_update_time = tsc + l3->arp_update_time * hz / 1000;
if (tsc < l3->optimized_arp_table[idx].arp_timeout) {
// MAC still valid => also send mbuf
memcpy(mac, &l3->optimized_arp_table[idx].mac, sizeof(struct ether_addr));
@@ -137,7 +137,7 @@ int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_d
}
// IP address not found in table
l3->optimized_arp_table[l3->n_pkts].ip = *ip_dst;
- l3->optimized_arp_table[l3->n_pkts].arp_update_time = tsc + hz;
+ l3->optimized_arp_table[l3->n_pkts].arp_update_time = tsc + l3->arp_update_time * hz / 1000;
l3->n_pkts++;
if (l3->n_pkts < 4) {
@@ -171,7 +171,7 @@ int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_d
return DROP_MBUF;
} else {
l3->arp_table[ret].ip = *ip_dst;
- l3->arp_table[ret].arp_update_time = tsc + hz;
+ l3->arp_table[ret].arp_update_time = tsc + l3->arp_update_time * hz / 1000;
}
return SEND_ARP;
} else {
@@ -182,6 +182,7 @@ int write_dst_mac(struct task_base *tbase, struct rte_mbuf *mbuf, uint32_t *ip_d
return SEND_MBUF;
} else if (tsc > l3->arp_table[ret].arp_update_time) {
// ARP not sent since a long time, send ARP
+ l3->arp_table[ret].arp_update_time = tsc + l3->arp_update_time * hz / 1000;
l3->arp_table[ret].arp_update_time = tsc + hz;
if (tsc < l3->arp_table[ret].arp_timeout) {
// MAC still valid => send also MBUF
@@ -229,6 +230,14 @@ void task_init_l3(struct task_base *tbase, struct task_args *targ)
tbase->l3.core_id = targ->lconf->id;
tbase->l3.task_id = targ->id;
tbase->l3.tmaster = targ->tmaster;
+ if (tbase->l3.arp_timeout != 0)
+ tbase->l3.arp_timeout = targ->arp_timeout;
+ else
+ tbase->l3.arp_timeout = DEFAULT_ARP_TIMEOUT;
+ if (tbase->l3.arp_update_time != 0)
+ tbase->l3.arp_update_time = targ->arp_update_time;
+ else
+ tbase->l3.arp_update_time = DEFAULT_ARP_UPDATE_TIME;
}
void task_start_l3(struct task_base *tbase, struct task_args *targ)
@@ -299,7 +308,7 @@ void handle_ctrl_plane_pkts(struct task_base *tbase, struct rte_mbuf **mbufs, ui
// MAC address of the gateway
memcpy(&l3->gw.mac, &hdr->arp.data.sha, 6);
l3->flags |= FLAG_DST_MAC_KNOWN;
- l3->gw.arp_timeout = tsc + 30 * hz;
+ l3->gw.arp_timeout = tsc + l3->arp_timeout * hz / 1000;
} else if (l3->n_pkts < 4) {
// Few packets tracked - should be faster to loop through them thean using a hash table
for (idx = 0; idx < l3->n_pkts; idx++) {
@@ -310,7 +319,7 @@ void handle_ctrl_plane_pkts(struct task_base *tbase, struct rte_mbuf **mbufs, ui
if (idx < l3->n_pkts) {
// IP not found; this is a reply while we never asked for the request!
memcpy(&l3->optimized_arp_table[idx].mac, &(hdr->arp.data.sha), sizeof(struct ether_addr));
- l3->optimized_arp_table[idx].arp_timeout = tsc + 30 * hz;
+ l3->optimized_arp_table[idx].arp_timeout = tsc + l3->arp_timeout * hz / 1000;
}
} else {
int ret = rte_hash_add_key(l3->ip_hash, (const void *)&ip);
@@ -318,7 +327,7 @@ void handle_ctrl_plane_pkts(struct task_base *tbase, struct rte_mbuf **mbufs, ui
plogx_info("Unable add ip %d.%d.%d.%d in mac_hash\n", IP4(ip));
} else {
memcpy(&l3->arp_table[ret].mac, &(hdr->arp.data.sha), sizeof(struct ether_addr));
- l3->arp_table[ret].arp_timeout = tsc + 30 * hz;
+ l3->arp_table[ret].arp_timeout = tsc + l3->arp_timeout * hz / 1000;
}
}
tx_drop(mbufs[j]);
diff --git a/VNFs/DPPD-PROX/packet_utils.h b/VNFs/DPPD-PROX/packet_utils.h
index 74a3f60e..cb4dc913 100644
--- a/VNFs/DPPD-PROX/packet_utils.h
+++ b/VNFs/DPPD-PROX/packet_utils.h
@@ -33,6 +33,8 @@ enum {
SEND_ARP,
DROP_MBUF
};
+#define DEFAULT_ARP_TIMEOUT (1000 * 3600 * 24 * 15) // ~15 days = disabled by default
+#define DEFAULT_ARP_UPDATE_TIME (1000) // 1 second
struct task_base;
struct task_args;
@@ -50,6 +52,8 @@ struct l3_base {
uint8_t reachable_port_id;
uint8_t core_id;
uint8_t task_id;
+ uint32_t arp_timeout;
+ uint32_t arp_update_time;
struct arp_table gw;
struct arp_table optimized_arp_table[4];
struct rte_hash *ip_hash;
diff --git a/VNFs/DPPD-PROX/prox_args.c b/VNFs/DPPD-PROX/prox_args.c
index 59c514fc..d77eab1a 100644
--- a/VNFs/DPPD-PROX/prox_args.c
+++ b/VNFs/DPPD-PROX/prox_args.c
@@ -1362,6 +1362,10 @@ static int get_core_cfg(unsigned sindex, char *str, void *data)
if (STR_EQ(str, "local ipv6")) { /* source IPv6 address to be used for packets */
return parse_ip6(&targ->local_ipv6, pkey);
}
+ if (STR_EQ(str, "arp timeout"))
+ return parse_int(&targ->arp_timeout, pkey);
+ if (STR_EQ(str, "arp update time"))
+ return parse_int(&targ->arp_update_time, pkey);
if (STR_EQ(str, "number of packets"))
return parse_int(&targ->n_pkts, pkey);
if (STR_EQ(str, "pipes")) {
diff --git a/VNFs/DPPD-PROX/task_init.h b/VNFs/DPPD-PROX/task_init.h
index 5186826a..91a0d7eb 100644
--- a/VNFs/DPPD-PROX/task_init.h
+++ b/VNFs/DPPD-PROX/task_init.h
@@ -127,6 +127,8 @@ struct task_args {
uint32_t gateway_ipv4;
uint32_t local_ipv4;
uint32_t remote_ipv4;
+ uint32_t arp_timeout;
+ uint32_t arp_update_time;
struct ipv6_addr local_ipv6; /* For IPv6 Tunnel, it's the local tunnel endpoint address */
struct rte_ring *rx_rings[MAX_RINGS_PER_TASK];
struct rte_ring *tx_rings[MAX_RINGS_PER_TASK];