diff options
author | Neale Ranns <nranns@cisco.com> | 2016-08-25 15:29:12 +0100 |
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committer | Damjan Marion <dmarion.lists@gmail.com> | 2016-09-21 17:37:39 +0000 |
commit | 0bfe5d8c792abcdbcf27bfcc7b7b353fba04aee2 (patch) | |
tree | d600b0e2e693e766e722936744930d3bebac493c /vnet/vnet/adj/adj_midchain.h | |
parent | 60537f3d83e83d0ce10a620ca99aad4eddf85f5e (diff) |
A Protocol Independent Hierarchical FIB (VPP-352)
Main Enhancements:
- Protocol Independent FIB API
- Hierarchical FIB entries. Dynamic recursive route resolution.
- Extranet Support.
- Integration of IP and MPLS forwarding.
- Separation of FIB and Adjacency databases.
- Data-Plane Object forwarding model.
Change-Id: I52dc815c0d0aa8b493e3cf6b978568f3cc82296c
Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'vnet/vnet/adj/adj_midchain.h')
-rw-r--r-- | vnet/vnet/adj/adj_midchain.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/vnet/vnet/adj/adj_midchain.h b/vnet/vnet/adj/adj_midchain.h new file mode 100644 index 00000000000..adf86f1d007 --- /dev/null +++ b/vnet/vnet/adj/adj_midchain.h @@ -0,0 +1,71 @@ +/* + * 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. + */ +/** + * Midchain Adjacency sub-type. These adjs represent an L3 peer on a + * tunnel interface. The tunnel's adjacency is thus not the end of the chain, + * and needs to stack on/link to another chain (or portion of the graph) to + * reach the tunnel's destination. + */ + +#ifndef __ADJ_MIDCHAIN_H__ +#define __ADJ_MIDCHAIN_H__ + +#include <vnet/adj/adj.h> + +/** + * @brief + * Convert an existing neighbour adjacency into a midchain + * + * @param adj_index + * The index of the neighbour adjacency. + * + * @param post_rewrite_node + * The VLIB graph node that provides the post-encap fixup. + * where 'fixup' is e.g., correcting chksum, length, etc. + * + * @param rewrite + * The rewrite. + */ +extern void adj_nbr_midchain_update_rewrite(adj_index_t adj_index, + u32 post_rewrite_node, + u8 *rewrite); + +/** + * @brief + * [re]stack a midchain. 'Stacking' is the act of forming parent-child + * relationships in the data-plane graph. + * + * @param adj_index + * The index of the midchain to stack + * + * @param dpo + * The parent DPO to stack onto (i.e. become a child of). + */ +extern void adj_nbr_midchain_stack(adj_index_t adj_index, + const dpo_id_t *dpo); + +/** + * @brief + * Module initialisation + */ +extern void adj_midchain_module_init(void); + +/** + * @brief + * Format a midchain adjacency + */ +extern u8* format_adj_midchain(u8* s, va_list *ap); + +#endif |