| Neale Ranns | 76b5649 | 2018-09-28 15:16:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 Cisco 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 | #ifndef __PUNT_H__ |
| 17 | #define __PUNT_H__ |
| 18 | |
| 19 | #include <vlib/vlib.h> |
| 20 | |
| 21 | /** |
| 22 | * The 'syatem' defined punt reasons. |
| 23 | * Only add to this list reasons defined and used within the vlib subsystem. |
| 24 | * To define new reasons in e.g. plgins, use punt_reason_alloc() |
| 25 | */ |
| 26 | typedef enum vlib_punt_reason_t_ |
| 27 | { |
| 28 | PUNT_N_REASONS, |
| 29 | } vlib_punt_reason_t; |
| 30 | |
| 31 | |
| 32 | /** |
| 33 | * @brief Format a punt reason |
| 34 | */ |
| 35 | extern u8 *format_vlib_punt_reason (u8 * s, va_list * args); |
| 36 | |
| 37 | /** |
| 38 | * Typedef for a client handle |
| 39 | */ |
| 40 | typedef int vlib_punt_hdl_t; |
| 41 | |
| 42 | /** |
| 43 | * @brief Register a new clinet |
| 44 | * |
| 45 | * @param who - The name of the client |
| 46 | * |
| 47 | * @retrun the handle the punt infra allocated for this client that must |
| 48 | * be used when the client wishes to use the infra |
| 49 | */ |
| 50 | vlib_punt_hdl_t vlib_punt_client_register (const char *who); |
| 51 | |
| 52 | /** |
| 53 | * Allocate a new punt reason |
| 54 | */ |
| 55 | extern int vlib_punt_reason_alloc (vlib_punt_hdl_t client, |
| 56 | const char *reason_name, |
| 57 | vlib_punt_reason_t * reason); |
| 58 | |
| 59 | /** |
| 60 | * @brief Register a node to receive particular punted buffers |
| 61 | * |
| 62 | * @paran client - The registered client registering for the packets |
| 63 | * @param reason - The reason the packet was punted |
| 64 | * @param node - The node to which the punted packets will be sent |
| 65 | */ |
| 66 | extern int vlib_punt_register (vlib_punt_hdl_t client, |
| 67 | vlib_punt_reason_t reason, const char *node); |
| 68 | extern int vlib_punt_unregister (vlib_punt_hdl_t client, |
| 69 | vlib_punt_reason_t pr, const char *node); |
| 70 | |
| 71 | /** |
| 72 | * FOR USE IN THE DP ONLY |
| 73 | * |
| 74 | * Arc[s] to follow for each reason |
| 75 | */ |
| 76 | extern u16 **punt_dp_db; |
| 77 | |
| 78 | /** |
| 79 | * FOR USE IN THE DP ONLY |
| 80 | * |
| 81 | * Per-reason counters |
| 82 | */ |
| 83 | extern vlib_combined_counter_main_t punt_counters; |
| 84 | |
| 85 | #endif |
| 86 | |
| 87 | /* |
| 88 | * fd.io coding-style-patch-verification: ON |
| 89 | * |
| 90 | * Local Variables: |
| 91 | * eval: (c-set-style "gnu") |
| 92 | * End: |
| 93 | */ |