projects / mirror_frr.git / blame
| Commit | Line | Data |
|---|---|---|
| 955bfd98 PZ |
1 | /* |
| 2 | * BGP Label Pool - Manage label chunk allocations from zebra asynchronously | |
| 3 | * | |
| 4 | * Copyright (C) 2018 LabN Consulting, L.L.C. | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify it | |
| 7 | * under the terms of the GNU General Public License as published by the Free | |
| 8 | * Software Foundation; either version 2 of the License, or (at your option) | |
| 9 | * any later version. | |
| 10 | * | |
| 11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 14 | * more details. | |
| 15 | * | |
| 16 | * You should have received a copy of the GNU General Public License along | |
| 17 | * with this program; see the file COPYING; if not, write to the Free Software | |
| 18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef _FRR_BGP_LABELPOOL_H | |
| 22 | #define _FRR_BGP_LABELPOOL_H | |
| 23 | ||
| 24 | #include <zebra.h> | |
| 25 | ||
| 26 | #include "mpls.h" | |
| 27 | ||
| 28 | /* | |
| 29 | * Types used in bgp_lp_get for debug tracking; add more as needed | |
| 30 | */ | |
| 31 | #define LP_TYPE_VRF 0x00000001 | |
| 57592a53 | 32 | #define LP_TYPE_BGP_LU 0x00000002 |
| 955bfd98 | 33 | |
| 41397f2e DL |
34 | PREDECL_LIST(lp_fifo) |
| 35 | ||
| 955bfd98 PZ |
36 | struct labelpool { |
| 37 | struct skiplist *ledger; /* all requests */ | |
| 38 | struct skiplist *inuse; /* individual labels */ | |
| 39 | struct list *chunks; /* granted by zebra */ | |
| 41397f2e | 40 | struct lp_fifo_head requests; /* blocked on zebra */ |
| 955bfd98 PZ |
41 | struct work_queue *callback_q; |
| 42 | uint32_t pending_count; /* requested from zebra */ | |
| 43 | }; | |
| 44 | ||
| 45 | extern void bgp_lp_init(struct thread_master *master, struct labelpool *pool); | |
| 46 | extern void bgp_lp_finish(void); | |
| 47 | extern void bgp_lp_get(int type, void *labelid, | |
| 48 | int (*cbfunc)(mpls_label_t label, void *labelid, bool allocated)); | |
| 49 | extern void bgp_lp_release(int type, void *labelid, mpls_label_t label); | |
| 50 | extern void bgp_lp_event_chunk(uint8_t keep, uint32_t first, uint32_t last); | |
| 51 | extern void bgp_lp_event_zebra_down(void); | |
| 52 | extern void bgp_lp_event_zebra_up(void); | |
| 53 | ||
| 54 | #endif /* _FRR_BGP_LABELPOOL_H */ |