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-rw-r--r--src/vnet/ipsec/ipsec.c35
1 files changed, 31 insertions, 4 deletions
diff --git a/src/vnet/ipsec/ipsec.c b/src/vnet/ipsec/ipsec.c
index 5cc8044e3d4..2749b04587b 100644
--- a/src/vnet/ipsec/ipsec.c
+++ b/src/vnet/ipsec/ipsec.c
@@ -31,6 +31,10 @@
*/
#define IPSEC4_OUT_SPD_DEFAULT_HASH_NUM_BUCKETS (1 << 22)
+/* Flow cache is sized for 1 million flows with a load factor of .25.
+ */
+#define IPSEC4_SPD_DEFAULT_HASH_NUM_BUCKETS (1 << 22)
+
ipsec_main_t ipsec_main;
esp_async_post_next_t esp_encrypt_async_next;
esp_async_post_next_t esp_decrypt_async_next;
@@ -554,12 +558,18 @@ ipsec_init (vlib_main_t * vm)
crypto_engine_backend_register_post_node (vm);
im->ipsec4_out_spd_hash_tbl = NULL;
- im->flow_cache_flag = 0;
+ im->output_flow_cache_flag = 0;
im->ipsec4_out_spd_flow_cache_entries = 0;
im->epoch_count = 0;
im->ipsec4_out_spd_hash_num_buckets =
IPSEC4_OUT_SPD_DEFAULT_HASH_NUM_BUCKETS;
+ im->ipsec4_in_spd_hash_tbl = NULL;
+ im->input_flow_cache_flag = 0;
+ im->ipsec4_in_spd_flow_cache_entries = 0;
+ im->input_epoch_count = 0;
+ im->ipsec4_in_spd_hash_num_buckets = IPSEC4_SPD_DEFAULT_HASH_NUM_BUCKETS;
+
return 0;
}
@@ -570,14 +580,16 @@ ipsec_config (vlib_main_t *vm, unformat_input_t *input)
{
ipsec_main_t *im = &ipsec_main;
unformat_input_t sub_input;
+
u32 ipsec4_out_spd_hash_num_buckets;
+ u32 ipsec4_in_spd_hash_num_buckets;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "ipv4-outbound-spd-flow-cache on"))
- im->flow_cache_flag = 1;
+ im->output_flow_cache_flag = 1;
else if (unformat (input, "ipv4-outbound-spd-flow-cache off"))
- im->flow_cache_flag = 0;
+ im->output_flow_cache_flag = 0;
else if (unformat (input, "ipv4-outbound-spd-hash-buckets %d",
&ipsec4_out_spd_hash_num_buckets))
{
@@ -585,6 +597,16 @@ ipsec_config (vlib_main_t *vm, unformat_input_t *input)
im->ipsec4_out_spd_hash_num_buckets =
1ULL << max_log2 (ipsec4_out_spd_hash_num_buckets);
}
+ else if (unformat (input, "ipv4-inbound-spd-flow-cache on"))
+ im->input_flow_cache_flag = 1;
+ else if (unformat (input, "ipv4-inbound-spd-flow-cache off"))
+ im->input_flow_cache_flag = 0;
+ else if (unformat (input, "ipv4-inbound-spd-hash-buckets %d",
+ &ipsec4_in_spd_hash_num_buckets))
+ {
+ im->ipsec4_in_spd_hash_num_buckets =
+ 1ULL << max_log2 (ipsec4_in_spd_hash_num_buckets);
+ }
else if (unformat (input, "ip4 %U", unformat_vlib_cli_sub_input,
&sub_input))
{
@@ -623,11 +645,16 @@ ipsec_config (vlib_main_t *vm, unformat_input_t *input)
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
}
- if (im->flow_cache_flag)
+ if (im->output_flow_cache_flag)
{
vec_add2 (im->ipsec4_out_spd_hash_tbl, im->ipsec4_out_spd_hash_tbl,
im->ipsec4_out_spd_hash_num_buckets);
}
+ if (im->input_flow_cache_flag)
+ {
+ vec_add2 (im->ipsec4_in_spd_hash_tbl, im->ipsec4_in_spd_hash_tbl,
+ im->ipsec4_in_spd_hash_num_buckets);
+ }
return 0;
}