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authorXavier Simonart <simonartxavier@gmail.com>2021-12-20 12:55:09 +0000
committerXavier Simonart <simonartxavier@gmail.com>2021-12-20 12:56:36 +0000
commitdd3150931f364f614bc20436ffe3b9a74760e9ef (patch)
tree082c8f08c23e3769808aa2916ca9d6a02b712ed7 /VNFs/DPPD-PROX/handle_swap.c
parentd08d92ed360dab327b786fd251224f763dc0a5ac (diff)
swap: add option to prevent swapping geneve packets
Now a warning will only be printed for the first geneve packet not swapped Signed-off-by: Xavier Simonart <simonartxavier@gmail.com> Change-Id: Ied424ce8fef9019ce2d4409391dc8001ed0b5ff7
Diffstat (limited to 'VNFs/DPPD-PROX/handle_swap.c')
-rw-r--r--VNFs/DPPD-PROX/handle_swap.c26
1 files changed, 20 insertions, 6 deletions
diff --git a/VNFs/DPPD-PROX/handle_swap.c b/VNFs/DPPD-PROX/handle_swap.c
index 381e56de..b7a82d03 100644
--- a/VNFs/DPPD-PROX/handle_swap.c
+++ b/VNFs/DPPD-PROX/handle_swap.c
@@ -42,6 +42,7 @@ struct packet {
struct task_swap {
struct task_base base;
struct rte_mempool *igmp_pool;
+ uint32_t flags;
uint32_t runtime_flags;
uint32_t igmp_address;
uint8_t src_dst_mac[12];
@@ -61,28 +62,30 @@ struct task_swap {
#define IGMP_MBUF_SIZE 2048
#define NB_CACHE_IGMP_MBUF 256
+#define GENEVE_PORT 0xc117 // in be
+
static void write_src_and_dst_mac(struct task_swap *task, struct rte_mbuf *mbuf)
{
prox_rte_ether_hdr *hdr;
prox_rte_ether_addr mac;
- if (unlikely((task->runtime_flags & (TASK_ARG_DST_MAC_SET|TASK_ARG_SRC_MAC_SET)) == (TASK_ARG_DST_MAC_SET|TASK_ARG_SRC_MAC_SET))) {
+ if (unlikely((task->flags & (TASK_ARG_DST_MAC_SET|TASK_ARG_SRC_MAC_SET)) == (TASK_ARG_DST_MAC_SET|TASK_ARG_SRC_MAC_SET))) {
/* Source and Destination mac hardcoded */
hdr = rte_pktmbuf_mtod(mbuf, prox_rte_ether_hdr *);
rte_memcpy(hdr, task->src_dst_mac, sizeof(task->src_dst_mac));
} else {
hdr = rte_pktmbuf_mtod(mbuf, prox_rte_ether_hdr *);
- if (unlikely((task->runtime_flags & TASK_ARG_SRC_MAC_SET) == 0)) {
+ if (unlikely((task->flags & TASK_ARG_SRC_MAC_SET) == 0)) {
/* dst mac will be used as src mac */
prox_rte_ether_addr_copy(&hdr->d_addr, &mac);
}
- if (unlikely(task->runtime_flags & TASK_ARG_DST_MAC_SET))
+ if (unlikely(task->flags & TASK_ARG_DST_MAC_SET))
prox_rte_ether_addr_copy((prox_rte_ether_addr *)&task->src_dst_mac[0], &hdr->d_addr);
else
prox_rte_ether_addr_copy(&hdr->s_addr, &hdr->d_addr);
- if (likely(task->runtime_flags & TASK_ARG_SRC_MAC_SET)) {
+ if (likely(task->flags & TASK_ARG_SRC_MAC_SET)) {
prox_rte_ether_addr_copy((prox_rte_ether_addr *)&task->src_dst_mac[6], &hdr->s_addr);
} else {
prox_rte_ether_addr_copy(&mac, &hdr->s_addr);
@@ -232,6 +235,7 @@ static int handle_swap_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, ui
uint8_t type;
static int llc_printed = 0;
static int lldp_printed = 0;
+ static int geneve_printed = 0;
for (j = 0; j < n_pkts; ++j) {
PREFETCH0(mbufs[j]);
@@ -378,10 +382,19 @@ static int handle_swap_bulk(struct task_base *tbase, struct rte_mbuf **mbufs, ui
continue;
}
udp_hdr = (prox_rte_udp_hdr *)(ip_hdr + 1);
+ port = udp_hdr->dst_port;
ip_hdr->dst_addr = ip_hdr->src_addr;
ip_hdr->src_addr = ip;
- port = udp_hdr->dst_port;
+ if ((port == GENEVE_PORT) && (task->runtime_flags & TASK_DO_NOT_FWD_GENEVE)) {
+ if (!geneve_printed) {
+ plog_info("Discarding geneve (only printed once)\n");
+ geneve_printed = 1;
+ }
+ out[j] = OUT_DISCARD;
+ continue;
+ }
+
udp_hdr->dst_port = udp_hdr->src_port;
udp_hdr->src_port = port;
write_src_and_dst_mac(task, mbufs[j]);
@@ -540,7 +553,8 @@ static void init_task_swap(struct task_base *tbase, struct task_args *targ)
plog_info("\t\tCore %d: src mac set from port\n", targ->lconf->id);
}
}
- task->runtime_flags = targ->flags;
+ task->flags = targ->flags;
+ task->runtime_flags = targ->runtime_flags;
task->igmp_address = rte_cpu_to_be_32(targ->igmp_address);
if (task->igmp_pool == NULL) {
static char name[] = "igmp0_pool";