Line data    Source code

       1             : /* Hey Emacs use -*- mode: C -*- */
       2             : /*
       3             :  * Copyright 2020 Rubicon Communications, LLC.
       4             :  *
       5             :  * Licensed under the Apache License, Version 2.0 (the "License");
       6             :  * you may not use this file except in compliance with the License.
       7             :  * You may obtain a copy of the License at:
       8             :  *
       9             :  *     http://www.apache.org/licenses/LICENSE-2.0
      10             :  *
      11             :  * Unless required by applicable law or agreed to in writing, software
      12             :  * distributed under the License is distributed on an "AS IS" BASIS,
      13             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14             :  * See the License for the specific language governing permissions and
      15             :  * limitations under the License.
      16             :  */
      17             : 
      18             : #include <sys/socket.h>
      19             : #include <linux/if.h>
      20             : 
      21             : #include <vnet/vnet.h>
      22             : #include <vnet/plugin/plugin.h>
      23             : 
      24             : #include <vlibapi/api.h>
      25             : #include <vlibmemory/api.h>
      26             : #include <vpp/app/version.h>
      27             : #include <vnet/format_fns.h>
      28             : 
      29             : #include <tracedump/graph.h>
      30             : #include <tracedump/graph.api_enum.h>
      31             : #include <tracedump/graph.api_types.h>
      32             : 
      33           0 : static void graph_node_print (vlib_main_t *vm, vlib_node_t *n, bool want_arcs)
      34             : {
      35           0 :   vlib_cli_output (vm, "Node (%4d): %v, Flags: 0x%x\n",
      36           0 :                    n->index, n->name, n->flags);
      37           0 :   if (!want_arcs)
      38           0 :     return;
      39             : 
      40             :   int i;
      41           0 :   int n_arcs = vec_len (n->next_nodes);
      42           0 :   for (i = 0; i < n_arcs; ++i)
      43             :     {
      44           0 :       vlib_cli_output (vm, "    next: %d\n", n->next_nodes[i]);
      45             :     }
      46             : }
      47             : 
      48             : 
      49             : static int
      50           0 : node_cmp (void *a1, void *a2)
      51             : {
      52           0 :   vlib_node_t **n1 = a1;
      53           0 :   vlib_node_t **n2 = a2;
      54             : 
      55           0 :   return vec_cmp (n1[0]->name, n2[0]->name);
      56             : }
      57             : 
      58             : static clib_error_t *
      59           0 : graph_node_show_cmd (vlib_main_t * vm,
      60             :                      unformat_input_t * input, vlib_cli_command_t * cmd)
      61             : {
      62           0 :   vlib_node_main_t *nm = &vm->node_main;
      63             :   vlib_node_t *n;
      64             :   u32 index;
      65             :   u8 *name;
      66             :   u32 flags;
      67             :   bool want_arcs;
      68             : 
      69           0 :   index = ~0;
      70           0 :   name = 0;
      71           0 :   flags = 0;
      72           0 :   want_arcs = false;
      73           0 :   n = 0;
      74             : 
      75           0 :   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
      76             :     {
      77           0 :       if (unformat (input, "node %d", &index))
      78           0 :           n = vlib_get_node (vm, index);
      79           0 :       else if (unformat (input, "node %v", &name))
      80           0 :           n = vlib_get_node_by_name (vm, name);
      81             : 
      82           0 :       else if (unformat (input, "want_arcs"))
      83           0 :         want_arcs = true;
      84             : 
      85           0 :       else if (unformat (input, "trace_supported"))
      86           0 :         flags |= NODE_FLAG_TRACE_SUPPORTED;
      87           0 :       else if (unformat (input, "input"))
      88           0 :         flags |= NODE_FLAG_TRACE_SUPPORTED;
      89           0 :       else if (unformat (input, "drop"))
      90           0 :         flags |= NODE_FLAG_IS_DROP;
      91           0 :       else if (unformat (input, "output"))
      92           0 :         flags |= NODE_FLAG_IS_OUTPUT;
      93           0 :       else if (unformat (input, "punt"))
      94           0 :         flags |= NODE_FLAG_IS_PUNT;
      95           0 :       else if (unformat (input, "handoff"))
      96           0 :         flags |= NODE_FLAG_IS_HANDOFF;
      97           0 :       else if (unformat (input, "no_free"))
      98           0 :         flags |= NODE_FLAG_FRAME_NO_FREE_AFTER_DISPATCH;
      99           0 :       else if (unformat (input, "polling"))
     100           0 :         flags |= NODE_FLAG_SWITCH_FROM_INTERRUPT_TO_POLLING_MODE;
     101           0 :       else if (unformat (input, "interrupt"))
     102           0 :         flags |= NODE_FLAG_SWITCH_FROM_POLLING_TO_INTERRUPT_MODE;
     103             : 
     104             :       else
     105           0 :         return clib_error_return (0, "unknown input '%U'",
     106             :                                   format_unformat_error, input);
     107             :     }
     108             : 
     109             :   /*
     110             :    * Just one node requested?  Ignore flags.
     111             :    */
     112           0 :   if (n) {
     113           0 :     graph_node_print (vm, n, want_arcs);
     114           0 :     return 0;
     115             :   }
     116             : 
     117           0 :   vlib_node_t **nodes = vec_dup (nm->nodes);
     118             :   uword i;
     119             : 
     120           0 :   vec_sort_with_function (nodes, node_cmp);
     121             : 
     122           0 :   for (i = 0; i < vec_len (nodes); ++i)
     123             :     {
     124           0 :       if (flags == 0 || (flags & nodes[i]->flags))
     125             :         {
     126           0 :           graph_node_print (vm, nodes[i], want_arcs);
     127             :         }
     128             :     }
     129             : 
     130           0 :   vec_free (nodes);
     131             : 
     132           0 :   return 0;
     133             : }
     134             : 
     135             : /* *INDENT-OFF* */
     136       37439 : VLIB_CLI_COMMAND (graph_node_show_command, static) = {
     137             :   .path = "show graph",
     138             :   .short_help = "show graph [node <index>|<name>] [want_arcs] [input|trace_supported] [drop] [output] [punt] [handoff] [no_free] [polling] [interrupt]",
     139             :   .function = graph_node_show_cmd,
     140             : };
     141             : /* *INDENT-ON* */
     142             : 
     143             : 
     144             : /*
     145             :  * Local Variables:
     146             :  * eval: (c-set-style "gnu")
     147             :  * End:
     148             :  */