return fd;
}
+#define TAP_MAX_INSTANCE 1024
void
tap_create_if (vlib_main_t * vm, tap_create_if_args_t * args)
struct vhost_memory *vhost_mem = 0;
virtio_if_t *vif = 0;
clib_error_t *err = 0;
- uword *p;
if (args->id != ~0)
{
- p = hash_get (tm->dev_instance_by_interface_id, args->id);
- if (p)
+ if (clib_bitmap_get (tm->tap_ids, args->id))
{
args->rv = VNET_API_ERROR_INVALID_INTERFACE;
args->error = clib_error_return (0, "interface already exists");
}
else
{
- int tries = 1000;
- while (--tries)
- {
- args->id = tm->last_used_interface_id++;
- p = hash_get (tm->dev_instance_by_interface_id, args->id);
- if (!p)
- break;
- }
+ args->id = clib_bitmap_first_clear (tm->tap_ids);
+ }
- if (!tries)
- {
- args->rv = VNET_API_ERROR_UNSPECIFIED;
- args->error =
- clib_error_return (0, "cannot find free interface id");
- return;
- }
+ if (args->id > TAP_MAX_INSTANCE)
+ {
+ args->rv = VNET_API_ERROR_UNSPECIFIED;
+ args->error = clib_error_return (0, "cannot find free interface id");
+ return;
}
memset (&ifr, 0, sizeof (ifr));
goto error;
}
- hash_set (tm->dev_instance_by_interface_id, vif->id, vif->dev_instance);
-
+ tm->tap_ids = clib_bitmap_set (tm->tap_ids, vif->id, 1);
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;
if (vif->fd != -1)
close (vif->fd);
vec_foreach_index (i, vif->vrings) virtio_vring_free (vm, vif, i);
+ vec_free (vif->vrings);
memset (vif, 0, sizeof (virtio_if_t));
pool_put (vim->interfaces, vif);
vec_foreach_index (i, vif->vrings) virtio_vring_free (vm, vif, i);
vec_free (vif->vrings);
- hash_unset (tm->dev_instance_by_interface_id, vif->id);
+ tm->tap_ids = clib_bitmap_set (tm->tap_ids, vif->id, 0);
clib_spinlock_free (&vif->lockp);
memset (vif, 0, sizeof (*vif));
pool_put (mm->interfaces, vif);
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;
+
+ return NULL;
}
VLIB_INIT_FUNCTION (tap_init);
vnet_feature_config_main_t *fcm;
vnet_config_main_t *cm;
u32 hw_index, i;
- char *tx_node_name, *output_node_name;
+ char *tx_node_name = NULL, *output_node_name = NULL;
pool_get (im->hw_interfaces, hw);
memset (hw, 0, sizeof (*hw));
VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
vnet_hw_interface_set_flags_helper (vnm, hw_index, /* flags */ 0,
VNET_INTERFACE_SET_FLAGS_HELPER_IS_CREATE);
+ vec_free (tx_node_name);
+ vec_free (output_node_name);
return hw_index;
}
hash_unset_mem (im->hw_interface_by_name, hw->name);
vec_free (hw->name);
+ vec_free (hw->hw_address);
vec_free (hw->input_node_thread_index_by_queue);
vec_free (hw->dq_runtime_index_by_queue);