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authorNeale Ranns <nranns@cisco.com>2017-10-21 10:53:20 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-09 15:16:52 +0000
commitd792d9c01e60656cbfe1b0f1fd6a9b125f5dab0c (patch)
treedb88d99dd8102389fb92e8ed44bc7d6a55dc3080 /src/vnet/bier/bier_disp_table.h
parenta2ff7b8cfc829ffbb6d5de7534efb51f7cba9cf3 (diff)
BIER
- see draft-ietf-bier-mpls-encapsulation-10 - midpoint, head and tail functions - supported payload protocols; IPv4 and IPv6 only. Change-Id: I59d7363bb6fdfdce8e4016a68a9c8f5a5e5791cb Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/bier/bier_disp_table.h')
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diff --git a/src/vnet/bier/bier_disp_table.h b/src/vnet/bier/bier_disp_table.h
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+/*
+ * 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_DISP_TABLE_H__
+#define __BIER_DISP_TABLE_H__
+
+#include <vnet/ip/ip.h>
+#include <vnet/adj/adj.h>
+#include <vnet/dpo/replicate_dpo.h>
+
+#include <vnet/bier/bier_types.h>
+#include <vnet/bier/bier_disp_entry.h>
+
+/**
+ * @brief
+ * A protocol Independent IP multicast FIB table
+ */
+typedef struct bier_disp_table_t_
+{
+ /**
+ * number of locks on the table
+ */
+ u16 bdt_locks;
+
+ /**
+ * Table ID (hash key) for this FIB.
+ */
+ u32 bdt_table_id;
+
+ /**
+ * The lookup DB based on sender BP. Value is the index of the
+ * BIER disp object.
+ */
+ index_t bdt_db[BIER_BP_MAX];
+} bier_disp_table_t;
+
+/**
+ * @brief
+ * Format the description/name of the table
+ */
+extern u8* format_bier_disp_table(u8* s, va_list *ap);
+
+extern void bier_disp_table_entry_path_add(u32 table_id,
+ bier_bp_t src,
+ bier_hdr_proto_id_t payload_proto,
+ const fib_route_path_t *rpath);
+
+extern void bier_disp_table_entry_path_remove(u32 table_id,
+ bier_bp_t src,
+ bier_hdr_proto_id_t payload_proto,
+ const fib_route_path_t *paths);
+
+extern index_t bier_disp_table_find(u32 table_id);
+
+
+extern index_t bier_disp_table_add_or_lock(u32 table_id);
+extern void bier_disp_table_unlock_w_table_id(u32 table_id);
+
+extern void bier_disp_table_unlock(index_t bdti);
+extern void bier_disp_table_lock(index_t bdti);
+extern void bier_disp_table_contribute_forwarding(index_t bdti,
+ dpo_id_t *dpo);
+
+/**
+ * Types and functions to walk all the entries in one BIER Table
+ */
+typedef void (*bier_disp_table_walk_fn_t)(const bier_disp_table_t *bdt,
+ const bier_disp_entry_t *bde,
+ u16 bp,
+ void *ctx);
+extern void bier_disp_table_walk(u32 table_id,
+ bier_disp_table_walk_fn_t fn,
+ void *ctx);
+
+/**
+ * @brief
+ * Get a pointer to a FIB table
+ */
+extern bier_disp_table_t *bier_disp_table_pool;
+
+static inline bier_disp_table_t *
+bier_disp_table_get (index_t bdti)
+{
+ return (pool_elt_at_index(bier_disp_table_pool, bdti));
+}
+
+static inline index_t
+bier_disp_table_lookup (index_t bdti,
+ bier_bp_t src)
+{
+ bier_disp_table_t *bdt;
+
+ bdt = bier_disp_table_get(bdti);
+
+ return (bdt->bdt_db[src]);
+}
+
+#endif