export counters in a memfd segment

[vpp.git] / src / vnet / interface.c

diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index d3ad896..797fe44 100644 (file)
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -485,10 +485,13 @@ vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
        error = call_elf_section_interface_callbacks
          (vnm, sw_if_index, flags,
           vnm->sw_interface_admin_up_down_functions);
-      si->flags = old_flags;
 
       if (error)
-       goto done;
+       {
+         /* restore flags on error */
+         si->flags = old_flags;
+         goto done;
+       }
 
       if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
        {
@@ -667,6 +670,7 @@ vnet_delete_sw_interface (vnet_main_t * vnm, u32 sw_if_index)
       if (config->xconnect || config->bridge)
        set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0, 0, 0, 0);
     }
+  vnet_clear_sw_interface_tag (vnm, sw_if_index);
 
   /* Bring down interface in case it is up. */
   if (sw->flags != 0)
@@ -998,11 +1002,30 @@ vnet_hw_interface_walk_sw (vnet_main_t * vnm,
   hash_foreach (id, sw_if_index,
                 hi->sub_interface_sw_if_index_by_id,
   ({
-    fn (vnm, sw_if_index, ctx);
+    if (WALK_STOP == fn (vnm, sw_if_index, ctx))
+      break;
   }));
   /* *INDENT-ON* */
 }
 
+void
+vnet_sw_interface_walk (vnet_main_t * vnm,
+                       vnet_sw_interface_walk_t fn, void *ctx)
+{
+  vnet_interface_main_t *im;
+  vnet_sw_interface_t *si;
+
+  im = &vnm->interface_main;
+
+  /* *INDENT-OFF* */
+  pool_foreach (si, im->sw_interfaces,
+  {
+    if (WALK_STOP == fn (vnm, si, ctx))
+      break;
+  });
+  /* *INDENT-ON* */
+}
+
 static void
 serialize_vnet_hw_interface_set_class (serialize_main_t * m, va_list * va)
 {
@@ -1227,6 +1250,10 @@ vnet_interface_init (vlib_main_t * vm)
                                                   CLIB_CACHE_LINE_BYTES);
   im->sw_if_counter_lock[0] = 1;       /* should be no need */
 
+  /*
+   * $$$$ add stat segment name(s) if desired
+   * set xxx.stat_segment_name = "whatever"...
+   */
   vec_validate (im->sw_if_counters, VNET_N_SIMPLE_INTERFACE_COUNTER - 1);
   im->sw_if_counters[VNET_INTERFACE_COUNTER_DROP].name = "drops";
   im->sw_if_counters[VNET_INTERFACE_COUNTER_PUNT].name = "punts";