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authorXiaoming Jiang <jiangxiaoming@outlook.com>2023-04-26 11:58:25 +0000
committerFan Zhang <fanzhang.oss@gmail.com>2023-09-12 12:42:56 +0000
commit7a726586655854773e7e9f816508e139ea3e0477 (patch)
tree62008d16c2a8105e349b25d72b2a9942d571f37a /src
parent139aba204780f6cc2845b311820a0b4c47517d02 (diff)
ipsec: improve fast path policy searching performance
Type: improvement Signed-off-by: Xiaoming Jiang <jiangxiaoming@outlook.com> Change-Id: Ib8bb300f5b62648f6b634046415742bdf5365982
Diffstat (limited to 'src')
-rw-r--r--src/vnet/ipsec/ipsec_spd_fp_lookup.h48
-rw-r--r--src/vnet/ipsec/ipsec_spd_policy.c46
2 files changed, 59 insertions, 35 deletions
diff --git a/src/vnet/ipsec/ipsec_spd_fp_lookup.h b/src/vnet/ipsec/ipsec_spd_fp_lookup.h
index 71260855317..2bbd7c664f9 100644
--- a/src/vnet/ipsec/ipsec_spd_fp_lookup.h
+++ b/src/vnet/ipsec/ipsec_spd_fp_lookup.h
@@ -196,13 +196,16 @@ ipsec_fp_in_ip6_policy_match_n (void *spd_fp, ipsec_fp_5tuple_t *tuples,
{
policy = im->policies + *policy_id;
- if ((last_priority[i] < policy->priority) &&
- (single_rule_in_match_5tuple (policy, match)))
+ if (single_rule_in_match_5tuple (policy, match))
{
- last_priority[i] = policy->priority;
- if (policies[i] == 0)
- counter++;
- policies[i] = policy;
+ if (last_priority[i] < policy->priority)
+ {
+ last_priority[i] = policy->priority;
+ if (policies[i] == 0)
+ counter++;
+ policies[i] = policy;
+ }
+ break;
}
}
}
@@ -291,13 +294,16 @@ ipsec_fp_in_ip4_policy_match_n (void *spd_fp, ipsec_fp_5tuple_t *tuples,
{
policy = im->policies + *policy_id;
- if ((last_priority[i] < policy->priority) &&
- (single_rule_in_match_5tuple (policy, match)))
+ if (single_rule_in_match_5tuple (policy, match))
{
- last_priority[i] = policy->priority;
- if (policies[i] == 0)
- counter++;
- policies[i] = policy;
+ if (last_priority[i] < policy->priority)
+ {
+ last_priority[i] = policy->priority;
+ if (policies[i] == 0)
+ counter++;
+ policies[i] = policy;
+ }
+ break;
}
}
}
@@ -418,6 +424,7 @@ ipsec_fp_out_ip6_policy_match_n (void *spd_fp, ipsec_fp_5tuple_t *tuples,
policies[i] = policy;
ids[i] = *policy_id;
}
+ break;
}
}
}
@@ -511,14 +518,17 @@ ipsec_fp_out_ip4_policy_match_n (void *spd_fp, ipsec_fp_5tuple_t *tuples,
{
policy = im->policies + *policy_id;
- if ((last_priority[i] < policy->priority) &&
- (single_rule_out_match_5tuple (policy, match)))
+ if (single_rule_out_match_5tuple (policy, match))
{
- last_priority[i] = policy->priority;
- if (policies[i] == 0)
- counter++;
- policies[i] = policy;
- ids[i] = *policy_id;
+ if (last_priority[i] < policy->priority)
+ {
+ last_priority[i] = policy->priority;
+ if (policies[i] == 0)
+ counter++;
+ policies[i] = policy;
+ ids[i] = *policy_id;
+ }
+ break;
}
}
}
diff --git a/src/vnet/ipsec/ipsec_spd_policy.c b/src/vnet/ipsec/ipsec_spd_policy.c
index 6a66a2de269..08acad2b291 100644
--- a/src/vnet/ipsec/ipsec_spd_policy.c
+++ b/src/vnet/ipsec/ipsec_spd_policy.c
@@ -617,17 +617,24 @@ ipsec_fp_ip4_add_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
}
else
{
+ u32 i;
+ u32 *old_fp_policies_ids = result_val->fp_policies_ids;
- if (vec_max_len (result_val->fp_policies_ids) !=
- vec_len (result_val->fp_policies_ids))
+ vec_foreach_index (i, result_val->fp_policies_ids)
{
- /* no need to resize */
- vec_add1 (result_val->fp_policies_ids, policy_index);
+ ipsec_policy_t *p =
+ pool_elt_at_index (im->policies, result_val->fp_policies_ids[i]);
+
+ if (p->priority <= policy->priority)
+ {
+ break;
+ }
}
- else
- {
- vec_add1 (result_val->fp_policies_ids, policy_index);
+ vec_insert_elts (result_val->fp_policies_ids, &policy_index, 1, i);
+
+ if (result_val->fp_policies_ids != old_fp_policies_ids)
+ {
res = clib_bihash_add_del_16_8 (bihash_table, &result, 1);
if (res != 0)
@@ -721,17 +728,24 @@ ipsec_fp_ip6_add_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
}
else
{
+ u32 i;
+ u32 *old_fp_policies_ids = result_val->fp_policies_ids;
- if (vec_max_len (result_val->fp_policies_ids) !=
- vec_len (result_val->fp_policies_ids))
+ vec_foreach_index (i, result_val->fp_policies_ids)
{
- /* no need to resize */
- vec_add1 (result_val->fp_policies_ids, policy_index);
+ ipsec_policy_t *p =
+ pool_elt_at_index (im->policies, result_val->fp_policies_ids[i]);
+
+ if (p->priority <= policy->priority)
+ {
+ break;
+ }
}
- else
- {
- vec_add1 (result_val->fp_policies_ids, policy_index);
+ vec_insert_elts (result_val->fp_policies_ids, &policy_index, 1, i);
+
+ if (result_val->fp_policies_ids != old_fp_policies_ids)
+ {
res = clib_bihash_add_del_40_8 (bihash_table, &result, 1);
if (res != 0)
@@ -806,7 +820,7 @@ ipsec_fp_ip6_del_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
clib_bihash_add_del_40_8 (bihash_table, &result, 0);
}
else
- vec_del1 (result_val->fp_policies_ids, ii);
+ vec_delete (result_val->fp_policies_ids, 1, ii);
vec_foreach_index (imt, fp_spd->fp_mask_ids[policy->type])
{
@@ -870,7 +884,7 @@ ipsec_fp_ip4_del_policy (ipsec_main_t *im, ipsec_spd_fp_t *fp_spd,
clib_bihash_add_del_16_8 (bihash_table, &result, 0);
}
else
- vec_del1 (result_val->fp_policies_ids, ii);
+ vec_delete (result_val->fp_policies_ids, 1, ii);
vec_foreach_index (imt, fp_spd->fp_mask_ids[policy->type])
{