fib: add barrier sync, pool/vector expand cases

[vpp.git] / src / vnet / dpo / load_balance.c

diff --git a/src/vnet/dpo/load_balance.c b/src/vnet/dpo/load_balance.c
index 7acccca..c029341 100644 (file)
--- a/src/vnet/dpo/load_balance.c
+++ b/src/vnet/dpo/load_balance.c
@@ -93,12 +93,33 @@ static load_balance_t *
 load_balance_alloc_i (void)
 {
     load_balance_t *lb;
+    u8 need_barrier_sync = 0;
+    vlib_main_t *vm = vlib_get_main();
+    ASSERT (vm->thread_index == 0);
+
+    pool_get_aligned_will_expand (load_balance_pool, need_barrier_sync,
+                                  CLIB_CACHE_LINE_BYTES);
+    if (need_barrier_sync)
+        vlib_worker_thread_barrier_sync (vm);
 
     pool_get_aligned(load_balance_pool, lb, CLIB_CACHE_LINE_BYTES);
     clib_memset(lb, 0, sizeof(*lb));
 
     lb->lb_map = INDEX_INVALID;
     lb->lb_urpf = INDEX_INVALID;
+
+    if (need_barrier_sync == 0)
+    {
+        need_barrier_sync += vlib_validate_combined_counter_will_expand
+            (&(load_balance_main.lbm_to_counters),
+             load_balance_get_index(lb));
+        need_barrier_sync += vlib_validate_combined_counter_will_expand
+            (&(load_balance_main.lbm_via_counters),
+             load_balance_get_index(lb));
+        if (need_barrier_sync)
+            vlib_worker_thread_barrier_sync (vm);
+    }
+
     vlib_validate_combined_counter(&(load_balance_main.lbm_to_counters),
                                    load_balance_get_index(lb));
     vlib_validate_combined_counter(&(load_balance_main.lbm_via_counters),
@@ -108,6 +129,9 @@ load_balance_alloc_i (void)
     vlib_zero_combined_counter(&(load_balance_main.lbm_via_counters),
                                load_balance_get_index(lb));
 
+    if (need_barrier_sync)
+        vlib_worker_thread_barrier_release (vm);
+
     return (lb);
 }
 
@@ -1121,7 +1145,7 @@ load_balance_inline (vlib_main_t * vm,
              vnet_buffer(b0)->ip.flow_hash = bier_compute_flow_hash(bh0);
          }
 
-         dpo0 = load_balance_get_bucket_i(lb0, 
+         dpo0 = load_balance_get_bucket_i(lb0,
                                           vnet_buffer(b0)->ip.flow_hash &
                                           (lb0->lb_n_buckets_minus_1));