MTU: Setting of MTU on software interface (instead of hardware interface)

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

diff --git a/src/vnet/interface_cli.c b/src/vnet/interface_cli.c
index d151335..fe17c82 100644 (file)
--- a/src/vnet/interface_cli.c
+++ b/src/vnet/interface_cli.c
@@ -1103,32 +1103,29 @@ static clib_error_t *
 mtu_cmd (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd)
 {
   vnet_main_t *vnm = vnet_get_main ();
-  u32 hw_if_index, mtu;
-  ethernet_main_t *em = &ethernet_main;
+  u32 sw_if_index, mtu;
 
-  if (unformat (input, "%d %U", &mtu,
-               unformat_vnet_hw_interface, vnm, &hw_if_index))
+  if (unformat (input, "%d %U", &mtu, unformat_vnet_sw_interface, vnm,
+               &sw_if_index))
     {
-      vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
-      ethernet_interface_t *eif = ethernet_get_interface (em, hw_if_index);
-
-      if (!eif)
-       return clib_error_return (0, "not supported");
-
-      if (mtu < hi->min_supported_packet_bytes)
-       return clib_error_return (0, "Invalid mtu (%d): "
-                                 "must be >= min pkt bytes (%d)", mtu,
-                                 hi->min_supported_packet_bytes);
-
-      if (mtu > hi->max_supported_packet_bytes)
-       return clib_error_return (0, "Invalid mtu (%d): must be <= (%d)", mtu,
-                                 hi->max_supported_packet_bytes);
-
-      vnet_hw_interface_set_mtu (vnm, hw_if_index, mtu);
+      ;
     }
   else
-    return clib_error_return (0, "unknown input `%U'",
-                             format_unformat_error, input);
+    {
+      return clib_error_return (0, "unknown input `%U'",
+                               format_unformat_error, input);
+    }
+
+  int rv = vnet_sw_interface_set_mtu (vnm, sw_if_index, mtu);
+  if (rv < 0)
+    {
+      vnet_hw_interface_t *hi = vnet_get_sw_hw_interface (vnm, sw_if_index);
+      ASSERT (hi);
+      return clib_error_return (0, "Invalid mtu (%d): "
+                               "must be  between min pkt bytes (%d) and max pkt bytes (%d)",
+                               mtu, hi->min_packet_bytes,
+                               hi->max_packet_bytes);
+    }
   return 0;
 }
 
@@ -1406,7 +1403,7 @@ set_interface_rx_mode (vlib_main_t * vm, unformat_input_t * input,
  * @cliexend
 ?*/
 /* *INDENT-OFF* */
-VLIB_CLI_COMMAND (cmd_set_if_rx_mode,static) = {
+VLIB_CLI_COMMAND (cmd_set_if_rx_mode, static) = {
     .path = "set interface rx-mode",
     .short_help = "set interface rx-mode <interface> [queue <n>] [polling | interrupt | adaptive]",
     .function = set_interface_rx_mode,