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authorKlement Sekera <ksekera@cisco.com>2020-04-15 15:37:18 +0200
committerOle Trøan <otroan@employees.org>2020-04-24 15:22:24 +0000
commitd9e18aac39827b576dda5ee456e17694988f5ac6 (patch)
tree4fbfc680d777cc90d51270c9665693d1b64b9b79 /src/plugins/nat/nat44
parent5581de6d6d69388f899692f2dc201ff76a06af3d (diff)
nat: ignore user hash in ED NAT
With port overloading, port is no longer a scarce resource and there is no need to limit connections per internal IP. This saves one hash insert in slow path. Type: improvement Change-Id: I8a7a9713ac855fa99fa1617ec684f757cf6e09ae Signed-off-by: Klement Sekera <ksekera@cisco.com>
Diffstat (limited to 'src/plugins/nat/nat44')
-rw-r--r--src/plugins/nat/nat44/inlines.h22
1 files changed, 14 insertions, 8 deletions
diff --git a/src/plugins/nat/nat44/inlines.h b/src/plugins/nat/nat44/inlines.h
index 541770ad102..3c88e15c05e 100644
--- a/src/plugins/nat/nat44/inlines.h
+++ b/src/plugins/nat/nat44/inlines.h
@@ -53,6 +53,19 @@ nat44_session_reuse_old (snat_main_t * sm, snat_user_t * u,
return s;
}
+static_always_inline void
+nat44_global_lru_insert (snat_main_per_thread_data_t * tsm,
+ snat_session_t * s, f64 now)
+{
+ dlist_elt_t *lru_list_elt;
+ pool_get (tsm->global_lru_pool, lru_list_elt);
+ s->global_lru_index = lru_list_elt - tsm->global_lru_pool;
+ clib_dlist_addtail (tsm->global_lru_pool, tsm->global_lru_head_index,
+ s->global_lru_index);
+ lru_list_elt->value = s - tsm->sessions;
+ s->last_lru_update = now;
+}
+
static_always_inline snat_session_t *
nat44_session_alloc_new (snat_main_per_thread_data_t * tsm, snat_user_t * u,
f64 now)
@@ -75,14 +88,7 @@ nat44_session_alloc_new (snat_main_per_thread_data_t * tsm, snat_user_t * u,
s->per_user_list_head_index,
per_user_translation_list_elt - tsm->list_pool);
- dlist_elt_t *lru_list_elt;
- pool_get (tsm->global_lru_pool, lru_list_elt);
- s->global_lru_index = lru_list_elt - tsm->global_lru_pool;
- clib_dlist_addtail (tsm->global_lru_pool, tsm->global_lru_head_index,
- s->global_lru_index);
- lru_list_elt->value = s - tsm->sessions;
- s->last_lru_update = now;
-
+ nat44_global_lru_insert (tsm, s, now);
s->ha_last_refreshed = now;
return s;
}