Periodic scan and probe of IP neighbors to maintain neighbor pools

[vpp.git] / src / vnet / l2 / l2_fib.c

diff --git a/src/vnet/l2/l2_fib.c b/src/vnet/l2/l2_fib.c
index 9e095d2..918700b 100644 (file)
--- a/src/vnet/l2/l2_fib.c
+++ b/src/vnet/l2/l2_fib.c
@@ -407,7 +407,6 @@ l2fib_add (vlib_main_t * vm,
   u32 bd_id;
   u32 bd_index;
   u32 sw_if_index = ~0;
-  u32 filter_mac = 0;
   u32 static_mac = 0;
   u32 bvi_mac = 0;
   uword *p;
@@ -436,29 +435,25 @@ l2fib_add (vlib_main_t * vm,
 
   if (unformat (input, "filter"))
     {
-      filter_mac = 1;
-      static_mac = 1;
-
+      l2fib_add_filter_entry (mac, bd_index);
+      return 0;
     }
-  else
+
+  if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
     {
+      error = clib_error_return (0, "unknown interface `%U'",
+                                format_unformat_error, input);
+      goto done;
+    }
 
-      if (!unformat_user
-         (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
-       {
-         error = clib_error_return (0, "unknown interface `%U'",
-                                    format_unformat_error, input);
-         goto done;
-       }
-      if (unformat (input, "static"))
-       {
-         static_mac = 1;
-       }
-      else if (unformat (input, "bvi"))
-       {
-         bvi_mac = 1;
-         static_mac = 1;
-       }
+  if (unformat (input, "static"))
+    {
+      static_mac = 1;
+    }
+  else if (unformat (input, "bvi"))
+    {
+      bvi_mac = 1;
+      static_mac = 1;
     }
 
   if (vec_len (l2input_main.configs) <= sw_if_index)
@@ -468,10 +463,7 @@ l2fib_add (vlib_main_t * vm,
       goto done;
     }
 
-  if (filter_mac)
-    l2fib_add_filter_entry (mac, bd_index);
-  else
-    l2fib_add_fwd_entry (mac, bd_index, sw_if_index, static_mac, bvi_mac);
+  l2fib_add_fwd_entry (mac, bd_index, sw_if_index, static_mac, bvi_mac);
 
 done:
   return error;
@@ -970,12 +962,12 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
   u32 client = lm->client_pid;
   u32 cl_idx = lm->client_index;
   vl_api_l2_macs_event_t *mp = 0;
-  unix_shared_memory_queue_t *q = 0;
+  vl_api_registration_t *reg = 0;
 
   if (client)
     {
       mp = allocate_mac_evt_buf (client, cl_idx);
-      q = vl_api_client_index_to_input_queue (lm->client_index);
+      reg = vl_api_client_index_to_registration (lm->client_index);
     }
 
   for (i = 0; i < h->nbuckets; i++)
@@ -1024,15 +1016,15 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
                  if (PREDICT_FALSE (evt_idx >= fm->max_macs_in_event))
                    {
                      /* event message full, send it and start a new one */
-                     if (q && (q->cursize < q->maxsize))
+                     if (reg && vl_api_can_send_msg (reg))
                        {
                          mp->n_macs = htonl (evt_idx);
-                         vl_msg_api_send_shmem (q, (u8 *) & mp);
+                         vl_api_send_msg (reg, (u8 *) mp);
                          mp = allocate_mac_evt_buf (client, cl_idx);
                        }
                      else
                        {
-                         if (q)
+                         if (reg)
                            clib_warning ("MAC event to pid %d queue stuffed!"
                                          " %d MAC entries lost", client,
                                          evt_idx);
@@ -1045,11 +1037,13 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
                      /* copy mac entry to event msg */
                      clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac,
                                   6);
-                     mp->mac[evt_idx].is_del = 0;
+                     mp->mac[evt_idx].action = result.fields.lrn_mov ?
+                       MAC_EVENT_ACTION_MOVE : MAC_EVENT_ACTION_ADD;
                      mp->mac[evt_idx].sw_if_index =
                        htonl (result.fields.sw_if_index);
-                     /* clear event bit and update mac entry */
+                     /* clear event bits and update mac entry */
                      result.fields.lrn_evt = 0;
+                     result.fields.lrn_mov = 0;
                      BVT (clib_bihash_kv) kv;
                      kv.key = key.raw;
                      kv.value = result.raw;
@@ -1086,7 +1080,7 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
                {
                  /* copy mac entry to event msg */
                  clib_memcpy (mp->mac[evt_idx].mac_addr, key.fields.mac, 6);
-                 mp->mac[evt_idx].is_del = 1;
+                 mp->mac[evt_idx].action = MAC_EVENT_ACTION_DELETE;
                  mp->mac[evt_idx].sw_if_index =
                    htonl (result.fields.sw_if_index);
                  evt_idx++;
@@ -1109,14 +1103,14 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
       /*  send any outstanding mac event message else free message buffer */
       if (evt_idx)
        {
-         if (q && (q->cursize < q->maxsize))
+         if (reg && vl_api_can_send_msg (reg))
            {
              mp->n_macs = htonl (evt_idx);
-             vl_msg_api_send_shmem (q, (u8 *) & mp);
+             vl_api_send_msg (reg, (u8 *) mp);
            }
          else
            {
-             if (q)
+             if (reg)
                clib_warning ("MAC event to pid %d queue stuffed!"
                              " %d MAC entries lost", client, evt_idx);
              vl_msg_api_free (mp);
@@ -1128,9 +1122,6 @@ l2fib_scan (vlib_main_t * vm, f64 start_time, u8 event_only)
   return delta_t + accum_t;
 }
 
-/* Maximum f64 value */
-#define TIME_MAX (1.7976931348623157e+308)
-
 static uword
 l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
                               vlib_frame_t * f)
@@ -1139,7 +1130,7 @@ l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
   l2fib_main_t *fm = &l2fib_main;
   l2learn_main_t *lm = &l2learn_main;
   bool enabled = 0;
-  f64 start_time, next_age_scan_time = TIME_MAX;
+  f64 start_time, next_age_scan_time = CLIB_TIME_MAX;
 
   while (1)
     {
@@ -1198,7 +1189,7 @@ l2fib_mac_age_scanner_process (vlib_main_t * vm, vlib_node_runtime_t * rt,
          if (enabled)
            next_age_scan_time = start_time + L2FIB_AGE_SCAN_INTERVAL;
          else
-           next_age_scan_time = TIME_MAX;
+           next_age_scan_time = CLIB_TIME_MAX;
        }
     }
   return 0;