Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2020 Intel and/or its affiliates.
       3             :  * Licensed under the Apache License, Version 2.0 (the "License");
       4             :  * you may not use this file except in compliance with the License.
       5             :  * You may obtain a copy of the License at:
       6             :  *
       7             :  *     http://www.apache.org/licenses/LICENSE-2.0
       8             :  *
       9             :  * Unless required by applicable law or agreed to in writing, software
      10             :  * distributed under the License is distributed on an "AS IS" BASIS,
      11             :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      12             :  * See the License for the specific language governing permissions and
      13             :  * limitations under the License.
      14             :  */
      15             : /*
      16             :  * node_init.c: node march variant startup initialization
      17             :  *
      18             :  * Copyright (c) 2020 Intel Corporation
      19             :  *
      20             :  * Permission is hereby granted, free of charge, to any person obtaining
      21             :  * a copy of this software and associated documentation files (the
      22             :  * "Software"), to deal in the Software without restriction, including
      23             :  * without limitation the rights to use, copy, modify, merge, publish,
      24             :  * distribute, sublicense, and/or sell copies of the Software, and to
      25             :  * permit persons to whom the Software is furnished to do so, subject to
      26             :  * the following conditions:
      27             :  *
      28             :  * The above copyright notice and this permission notice shall be
      29             :  * included in all copies or substantial portions of the Software.
      30             :  *
      31             :  *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
      32             :  *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
      33             :  *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
      34             :  *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
      35             :  *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
      36             :  *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
      37             :  *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
      38             :  */
      39             : 
      40             : #include <sys/types.h>
      41             : #include <fcntl.h>
      42             : #include <vlib/vlib.h>
      43             : 
      44             : static clib_error_t *
      45         559 : vlib_node_config (vlib_main_t *vm, unformat_input_t *input)
      46             : {
      47         559 :   clib_error_t *error = 0;
      48             :   unformat_input_t sub_input;
      49         559 :   u32 *march_variant_by_node = 0;
      50             :   clib_march_variant_type_t march_variant;
      51             :   u32 node_index;
      52             :   int i;
      53             : 
      54             :   /* specify prioritization defaults for all graph nodes */
      55         565 :   while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
      56             :     {
      57         562 :       if (unformat (input, "default %U", unformat_vlib_cli_sub_input,
      58             :                     &sub_input))
      59             :         {
      60           6 :           while (unformat_check_input (&sub_input) != UNFORMAT_END_OF_INPUT)
      61             :             {
      62           3 :               if (!unformat (&sub_input, "variant %U",
      63             :                              unformat_vlib_node_variant, &march_variant))
      64           0 :                 return clib_error_return (0,
      65             :                                           "please specify a valid node variant");
      66             : 
      67        2139 :               vec_validate_init_empty (march_variant_by_node,
      68             :                                        vec_len (vm->node_main.nodes) - 1, ~0);
      69        2139 :               vec_foreach_index (i, march_variant_by_node)
      70        2136 :                 march_variant_by_node[i] = march_variant;
      71           3 :               vm->node_main.node_fn_default_march_variant = march_variant;
      72           3 :               unformat_free (&sub_input);
      73             :             }
      74             :         }
      75             :       else /* specify prioritization for an individual graph node */
      76         559 :         if (unformat (input, "%U", unformat_vlib_node, vm, &node_index))
      77             :         {
      78           3 :           if (unformat (input, "%U", unformat_vlib_cli_sub_input, &sub_input))
      79             :             {
      80           6 :               while (unformat_check_input (&sub_input) !=
      81             :                      UNFORMAT_END_OF_INPUT)
      82             :                 {
      83           3 :                   if (!unformat (&sub_input, "variant %U",
      84             :                                  unformat_vlib_node_variant, &march_variant))
      85           0 :                     return clib_error_return (0,
      86             :                                               "please specify a valid node variant");
      87           3 :                   vec_validate_init_empty (march_variant_by_node, node_index,
      88             :                                            ~0);
      89           3 :                   march_variant_by_node[node_index] = march_variant;
      90           3 :                   unformat_free (&sub_input);
      91             :                 }
      92             :             }
      93             :         }
      94             :       else
      95             :         {
      96         556 :           break;
      97             :         }
      98             :     }
      99             : 
     100         559 :   if (march_variant_by_node)
     101             :     {
     102        2139 :       vec_foreach_index (i, march_variant_by_node)
     103        2136 :         if (march_variant_by_node[i] != ~0)
     104        2136 :           vlib_node_set_march_variant (vm, i, march_variant_by_node[i]);
     105           3 :       vec_free (march_variant_by_node);
     106             :     }
     107         559 :   unformat_free (input);
     108             : 
     109         559 :   return error;
     110             : }
     111             : 
     112        7306 : VLIB_CONFIG_FUNCTION (vlib_node_config, "node");
     113             : 
     114             : /*
     115             :  * fd.io coding-style-patch-verification: ON
     116             :  *
     117             :  * Local Variables:
     118             :  * eval: (c-set-style "gnu")
     119             :  * End:
     120             :  */