wireguard: add async mode for encryption packets

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

diff --git a/src/vnet/interface.c b/src/vnet/interface.c
index ad6d9cc..412c675 100644 (file)
--- a/src/vnet/interface.c
+++ b/src/vnet/interface.c
@@ -462,9 +462,6 @@ vnet_sw_interface_set_flags_helper (vnet_main_t * vnm, u32 sw_if_index,
              goto done;
            }
 
-         /* save the si admin up flag */
-         old_flags = si->flags;
-
          /* update si admin up flag in advance if we are going admin down */
          if (!(flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP))
            si->flags &= ~VNET_SW_INTERFACE_FLAG_ADMIN_UP;
@@ -771,18 +768,41 @@ sw_interface_walk_callback (vnet_main_t * vnm, u32 sw_if_index, void *ctx)
   return WALK_CONTINUE;
 }
 
-void
-vnet_hw_interface_set_mtu (vnet_main_t * vnm, u32 hw_if_index, u32 mtu)
+clib_error_t *
+vnet_hw_interface_set_max_frame_size (vnet_main_t *vnm, u32 hw_if_index,
+                                     u32 fs)
 {
   vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
+  vnet_hw_interface_class_t *hw_if_class =
+    vnet_get_hw_interface_class (vnm, hi->hw_class_index);
+  clib_error_t *err = 0;
 
-  if (hi->max_packet_bytes != mtu)
+  log_debug ("set_max_frame_size: interface %s, max_frame_size %u -> %u",
+            hi->name, hi->max_frame_size, fs);
+
+  if (hw_if_class->set_max_frame_size == 0)
+    return vnet_error (VNET_ERR_UNSUPPORTED,
+                      "hw class doesn't support changing Max Frame Size");
+
+  if (hi->max_frame_size != fs)
     {
-      hi->max_packet_bytes = mtu;
-      ethernet_set_flags (vnm, hw_if_index, ETHERNET_INTERFACE_FLAG_MTU);
+      u32 mtu;
+      if (hw_if_class->set_max_frame_size)
+       if ((err = hw_if_class->set_max_frame_size (vnm, hi, fs)))
+         return err;
+      hi->max_frame_size = fs;
+      mtu = fs - hi->frame_overhead;
       vnet_hw_interface_walk_sw (vnm, hw_if_index, sw_interface_walk_callback,
                                 &mtu);
     }
+  return 0;
+}
+clib_error_t *
+vnet_hw_interface_set_mtu (vnet_main_t *vnm, u32 hw_if_index, u32 mtu)
+{
+  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
+  return vnet_hw_interface_set_max_frame_size (vnm, hw_if_index,
+                                              mtu + hi->frame_overhead);
 }
 
 static void
@@ -807,6 +827,36 @@ setup_output_node (vlib_main_t * vm,
   n->unformat_buffer = hw_class->unformat_header;
 }
 
+void
+vnet_reset_interface_l3_output_node (vlib_main_t *vm, u32 sw_if_index)
+{
+  vnet_set_interface_l3_output_node (vm, sw_if_index,
+                                    (u8 *) "interface-output");
+}
+
+void
+vnet_set_interface_l3_output_node (vlib_main_t *vm, u32 sw_if_index,
+                                  u8 *output_node)
+{
+  vlib_node_t *l3_node;
+
+  l3_node = vlib_get_node_by_name (vm, output_node);
+
+  static char *arcs[] = {
+    "ip4-output",
+    "ip6-output",
+    "mpls-output",
+    "ethernet-output",
+  };
+  u8 a;
+
+  for (a = 0; a < ARRAY_LEN (arcs); a++)
+    {
+      u8 arc = vnet_get_feature_arc_index (arcs[a]);
+      vnet_feature_modify_end_node (arc, sw_if_index, l3_node->index);
+    }
+}
+
 /* Register an interface instance. */
 u32
 vnet_register_interface (vnet_main_t * vnm,
@@ -836,6 +886,10 @@ vnet_register_interface (vnet_main_t * vnm,
   hw->hw_if_index = hw_index;
   hw->default_rx_mode = VNET_HW_IF_RX_MODE_POLLING;
 
+  if (hw_class->tx_hash_fn_type == VNET_HASH_FN_TYPE_ETHERNET ||
+      hw_class->tx_hash_fn_type == VNET_HASH_FN_TYPE_IP)
+    hw->hf = vnet_hash_default_function (hw_class->tx_hash_fn_type);
+
   if (dev_class->format_device_name)
     hw->name = format (0, "%U", dev_class->format_device_name, dev_instance);
   else if (hw_class->format_interface_name)
@@ -867,7 +921,6 @@ vnet_register_interface (vnet_main_t * vnm,
   hw->hw_instance = hw_instance;
 
   hw->max_rate_bits_per_sec = 0;
-  hw->min_packet_bytes = 0;
   vnet_sw_interface_set_mtu (vnm, hw->sw_if_index, 0);
 
   if (dev_class->tx_function == 0 && dev_class->tx_fn_registrations == 0)
@@ -993,6 +1046,7 @@ vnet_register_interface (vnet_main_t * vnm,
        static char *e[] = {
          "interface is down",
          "interface is deleted",
+         "no tx queue available",
        };
 
        r.n_errors = ARRAY_LEN (e);
@@ -1109,7 +1163,6 @@ vnet_delete_hw_interface (vnet_main_t * vnm, u32 hw_if_index)
       dn->tx_node_index = hw->tx_node_index;
       dn->output_node_index = hw->output_node_index;
     }
-
   hash_unset_mem (im->hw_interface_by_name, hw->name);
   vec_free (hw->name);
   vec_free (hw->hw_address);