vpp - Vector Packet Processing

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1 files changed, 7 insertions, 0 deletions

/* * 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. */ /** * @file * @brief LISP-GPE definitions. */ #ifndef __LISP_GPE_FWD_ENTRY_H__ #define __LISP_GPE_FWD_ENTRY_H__ #include <vnet/lisp-gpe/lisp_gpe.h> /** * @brief A path on which to forward lisp traffic */ typedef struct lisp_fwd_path_t_ { /** * The adjacency constructed for the locator pair */ index_t lisp_adj; /** * Priority. Only the paths with the best priority will be installed in FIB */ u8 priority; /** * [UE]CMP weigt for the path */ u8 weight; } lisp_fwd_path_t; /** * @brief A Forwarding entry can be 'normal' or 'negative' * Negative implies we deliberately want to add a FIB entry for an EID * that results in 'special' behaviour determined by an 'action'. * @normal means send it down some tunnels. */ typedef enum lisp_gpe_fwd_entry_type_t_ { LISP_GPE_FWD_ENTRY_TYPE_NORMAL, LISP_GPE_FWD_ENTRY_TYPE_NEGATIVE, } lisp_gpe_fwd_entry_type_t; /** * LISP-GPE fwd entry key */ typedef struct lisp_gpe_fwd_entry_key_t_ { dp_address_t rmt; dp_address_t lcl; u32 vni; } lisp_gpe_fwd_entry_key_t; /** * @brief A LISP Forwarding Entry * * A forwarding entry is from a locai EID to a remote EID over a set of rloc pairs */ typedef struct lisp_gpe_fwd_entry_t_ { /** * Follows src/dst or dst only forwarding policy */ u8 is_src_dst; /** * This object joins the FIB control plane graph to receive updates to * for changes to the graph. */ fib_node_t node; /** * The Entry's key: {lEID,rEID,vni} */ lisp_gpe_fwd_entry_key_t *key; /** * The forwarding entry type */ lisp_gpe_fwd_entry_type_t type; /** * The tenant the entry belongs to */ u32 tenant; /** * The VRF (in the case of L3) or Bridge-Domain (for L2) index */ union { /** * Fields relevant to an L2 entry */ struct { /** * The VRF ID */ u32 eid_table_id; /** * The FIB index for the overlay, i.e. the FIB in which the EIDs * are present */ u32 eid_fib_index; /** * The SRC-FIB index for created for anding source-route entries */ u32 src_fib_index; }; /** * Fields relevant to an L2 entry */ struct { /** * The Bridge-Domain (for L2) index */ u32 eid_bd_id; /** * The Bridge-domain index for the overlay EIDs */ u32 eid_bd_index; /** * The path-list created for the forwarding */ fib_node_index_t path_list_index; /** * Child index of this entry on the path-list */ u32 child_index; /** * The DPO used to forward */ dpo_id_t dpo; } l2; /** * Fields relevant to an NSH entry */ struct { /** * The path-list created for the forwarding */ fib_node_index_t path_list_index; /** * Child index of this entry on the path-list */ u32 child_index; /** * The DPO contributed by NSH */ dpo_id_t dpo; /** * The DPO used for forwarding. Obtained after stacking tx node * onto lb choice */ dpo_id_t choice; } nsh; }; union { /** * @brief When the type is 'normal' * The RLOC pair that form the route's paths. i.e. where to send * packets for this route. */ lisp_fwd_path_t *paths; /** * @brief When the type is negative. The action to take. */ negative_fwd_actions_e action; }; /** * used for getting load balance statistics */ index_t dpoi_index; } lisp_gpe_fwd_entry_t; extern int vnet_lisp_gpe_add_del_fwd_entry (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, u32 * hw_if_indexp); extern void vnet_lisp_gpe_fwd_entry_flush (void); extern u32 lisp_l2_fib_lookup (lisp_gpe_main_t * lgm, u16 bd_index, u8 src_mac[8], u8 dst_mac[8]); extern const dpo_id_t *lisp_nsh_fib_lookup (lisp_gpe_main_t * lgm, u32 spi_si); extern void vnet_lisp_gpe_del_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, u32 fwd_entry_index); extern void vnet_lisp_gpe_add_fwd_counters (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, u32 fwd_entry_index); extern u32 *vnet_lisp_gpe_get_fwd_entry_vnis (void); int vnet_lisp_gpe_get_fwd_stats (vnet_lisp_gpe_add_del_fwd_entry_args_t * a, vlib_counter_t * c); #endif /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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