Add logging support

[vpp.git] / src / vnet / devices / tap / tap.c

diff --git a/src/vnet/devices/tap/tap.c b/src/vnet/devices/tap/tap.c
index eb5a7a9..7cffaaf 100644 (file)
--- a/src/vnet/devices/tap/tap.c
+++ b/src/vnet/devices/tap/tap.c
@@ -31,6 +31,7 @@
 #include <linux/rtnetlink.h>
 
 #include <vlib/vlib.h>
+#include <vlib/log.h>
 #include <vlib/unix/unix.h>
 #include <vnet/ethernet/ethernet.h>
 #include <vnet/ip/ip4_packet.h>
@@ -130,8 +131,6 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
   vif->tap_fd = -1;
   vif->id = args->id;
 
-  hash_set (tm->dev_instance_by_interface_id, vif->id, vif->dev_instance);
-
   if ((vif->fd = open ("/dev/vhost-net", O_RDWR | O_NONBLOCK)) < 0)
     {
       args->rv = VNET_API_ERROR_SYSCALL_ERROR_1;
@@ -383,6 +382,8 @@ tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
       goto error;
     }
 
+  hash_set (tm->dev_instance_by_interface_id, vif->id, vif->dev_instance);
+
   sw = vnet_get_hw_sw_interface (vnm, vif->hw_if_index);
   vif->sw_if_index = sw->sw_if_index;
   args->sw_if_index = vif->sw_if_index;
@@ -519,11 +520,19 @@ tap_dump_ifs (tap_interface_details_t ** out_tapids)
   return 0;
 }
 
+#define vlib_log_info(...) vlib_log(VLIB_LOG_LEVEL_INFO, __VA_ARGS__)
+
 static clib_error_t *
 tap_init (vlib_main_t * vm)
 {
   tap_main_t *tm = &tap_main;
+  clib_error_t *error;
+  error = vlib_call_init_function (vm, vlib_log_init);
+  if (error)
+    return error;
   tm->dev_instance_by_interface_id = hash_create (0, sizeof (uword));
+  tm->log_default = vlib_log_register_class ("tap", 0);
+  vlib_log_info (tm->log_default, "initialized");
   return 0;
 }