lacp: add actor steady state check prior to skip processing lacp pdu

In a rare event, we may be skipping processing lacp pdu's when the it is
not in steady state.

Type: fix

Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: I3595d22dbff8a97dce9fb4d4452d2051bcf6f523

1 files changed, 26 insertions, 23 deletions

diff --git a/src/vnet/bonding/cli.c b/src/vnet/bonding/cli.c
index 9687e8841fe..ba481756086 100644
--- a/src/vnet/bonding/cli.c
+++ b/src/vnet/bonding/cli.c
@@ -43,7 +43,6 @@ bond_disable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
 	  /* deleting the active slave for active-backup */
 	  switching_active = 1;
 	vec_del1 (bif->active_slaves, i);
-	hash_unset (bif->active_slave_by_sw_if_index, sif->sw_if_index);
 	if (sif->lacp_enabled && bif->numa_only)
 	  {
 	    /* For lacp mode, if we check it is a slave on local numa node,
@@ -142,35 +141,39 @@ bond_enable_collecting_distributing (vlib_main_t * vm, slave_if_t * sif)
   bond_main_t *bm = &bond_main;
   vnet_main_t *vnm = vnet_get_main ();
   vnet_hw_interface_t *hw = vnet_get_sup_hw_interface (vnm, sif->sw_if_index);
+  int i;
+  uword p;
 
   bif = bond_get_master_by_dev_instance (sif->bif_dev_instance);
   clib_spinlock_lock_if_init (&bif->lockp);
-  if (!hash_get (bif->active_slave_by_sw_if_index, sif->sw_if_index))
+  vec_foreach_index (i, bif->active_slaves)
+  {
+    p = *vec_elt_at_index (bif->active_slaves, i);
+    if (p == sif->sw_if_index)
+      goto done;
+  }
+
+  if (sif->lacp_enabled && bif->numa_only && (vm->numa_node == hw->numa_node))
     {
-      hash_set (bif->active_slave_by_sw_if_index, sif->sw_if_index,
-		sif->sw_if_index);
+      vec_insert_elts (bif->active_slaves, &sif->sw_if_index, 1,
+		       bif->n_numa_slaves);
+      bif->n_numa_slaves++;
+    }
+  else
+    vec_add1 (bif->active_slaves, sif->sw_if_index);
 
-      if ((sif->lacp_enabled && bif->numa_only)
-	  && (vm->numa_node == hw->numa_node))
-	{
-	  vec_insert_elts (bif->active_slaves, &sif->sw_if_index, 1,
-			   bif->n_numa_slaves);
-	  bif->n_numa_slaves++;
-	}
+  sif->is_local_numa = (vm->numa_node == hw->numa_node) ? 1 : 0;
+  if (bif->mode == BOND_MODE_ACTIVE_BACKUP)
+    {
+      if (vec_len (bif->active_slaves) == 1)
+	/* First slave becomes active? */
+	vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
+				   BOND_SEND_GARP_NA, bif->hw_if_index);
       else
-	vec_add1 (bif->active_slaves, sif->sw_if_index);
-
-      sif->is_local_numa = (vm->numa_node == hw->numa_node) ? 1 : 0;
-      if (bif->mode == BOND_MODE_ACTIVE_BACKUP)
-	{
-	  if (vec_len (bif->active_slaves) == 1)
-	    /* First slave becomes active? */
-	    vlib_process_signal_event (bm->vlib_main, bond_process_node.index,
-				       BOND_SEND_GARP_NA, bif->hw_if_index);
-	  else
-	    bond_sort_slaves (bif);
-	}
+	bond_sort_slaves (bif);
     }
+
+done:
   clib_spinlock_unlock_if_init (&bif->lockp);
 
   if (bif->mode == BOND_MODE_LACP)