diff options
Diffstat (limited to 'src/vnet/bier/bier_bift_table.h')
-rw-r--r-- | src/vnet/bier/bier_bift_table.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/vnet/bier/bier_bift_table.h b/src/vnet/bier/bier_bift_table.h new file mode 100644 index 00000000000..bc77c37ae3a --- /dev/null +++ b/src/vnet/bier/bier_bift_table.h @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2016 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef __BIER_BIFT_TABLE_H__ +#define __BIER_BIFT_TABLE_H__ + +#include <vnet/dpo/dpo.h> +#include <vnet/bier/bier_types.h> +#include <vnet/mpls/packet.h> + +/* + * the lookup table used to get from a BFIT_ID to a load-balance. + * As per-draft draft-ietf-bier-mpls-encapsulation-10 this isthe + * use case for non-MPLS networks + */ +#define BIER_BIFT_N_ENTRIES (1 << 20) +typedef struct bier_bfit_table_t_ +{ + /** + * Forwarding information for each BIFT ID + */ + dpo_id_t bblt_dpos[BIER_BIFT_N_ENTRIES]; + + /** + * The number of entries in the table + */ + u32 bblt_n_entries; +} bier_bfit_table_t; + + +extern void bier_bift_table_entry_add(bier_bift_id_t id, + const dpo_id_t *dpo); + +extern void bier_bift_table_entry_remove(bier_bift_id_t id); + +/** + * Global BIFT table + */ +extern bier_bfit_table_t *bier_bift_table; + +static inline const dpo_id_t* +bier_bift_dp_lookup (bier_bift_id_t key_host_order) +{ + return (&bier_bift_table->bblt_dpos[vnet_mpls_uc_get_label(key_host_order)]); +} +#endif |