diff options
author | Neale Ranns <nranns@cisco.com> | 2017-03-01 15:12:11 -0800 |
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committer | Neale Ranns <nranns@cisco.com> | 2017-04-07 09:12:12 +0000 |
commit | 0f26c5a0138ac86d7ebd197c31a09d8d624c35fe (patch) | |
tree | 5cee4659885432c439e44d7346fd5e482df5f0e6 /src/vnet/dpo/lookup_dpo.h | |
parent | c14f31c2c62fb66d98aef4402a6f1bda09683fd3 (diff) |
MPLS Mcast
1 - interface-DPO
Used in the Data-plane to change a packet's input interface
2 - MPLS multicast FIB entry
Same as a unicast entry but it links to a replicate not a load-balance DPO
3 - Multicast MPLS tunnel
Update MPLS tunnels to use a FIB path-list to describe the endpoint[s]. Use the path-list to generate the forwarding chain (DPOs) to link to .
4 - Resolve a path via a local label (of an mLDP LSP)
For IP multicast entries to use an LSP in the replication list, we need to decribe the 'resolve-via-label' where the label is that of a multicast LSP.
5 - MPLS disposition path sets RPF-ID
For a interface-less LSP (i.e. mLDP not RSVP-TE) at the tail of the LSP we still need to perform an RPF check. An MPLS disposition DPO performs the MPLS pop validation checks and sets the RPF-ID in the packet.
6 - RPF check with per-entry RPF-ID
An RPF-ID is used instead of a real interface SW if index in the case the IP traffic arrives from an LSP that does not have an associated interface.
Change-Id: Ib92e177be919147bafeb599729abf3d1abc2f4b3
Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/dpo/lookup_dpo.h')
-rw-r--r-- | src/vnet/dpo/lookup_dpo.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/vnet/dpo/lookup_dpo.h b/src/vnet/dpo/lookup_dpo.h index ff283388868..7dfd0385a9d 100644 --- a/src/vnet/dpo/lookup_dpo.h +++ b/src/vnet/dpo/lookup_dpo.h @@ -47,6 +47,19 @@ typedef enum lookup_table_t_ { } /** + * Switch to use the packet's source or destination address for lookup + */ +typedef enum lookup_cast_t_ { + LOOKUP_UNICAST, + LOOKUP_MULTICAST, +} __attribute__ ((packed)) lookup_cast_t; + +#define LOOKUP_CASTS { \ + [LOOKUP_UNICAST] = "unicast", \ + [LOOKUP_MULTICAST] = "multicast", \ +} + +/** * A representation of an MPLS label for imposition in the data-path */ typedef struct lookup_dpo_t @@ -74,6 +87,11 @@ typedef struct lookup_dpo_t lookup_table_t lkd_table; /** + * Unicast of rmulticast FIB lookup + */ + lookup_cast_t lkd_cast; + + /** * Number of locks */ u16 lkd_locks; @@ -81,11 +99,13 @@ typedef struct lookup_dpo_t extern void lookup_dpo_add_or_lock_w_fib_index(fib_node_index_t fib_index, dpo_proto_t proto, + lookup_cast_t cast, lookup_input_t input, lookup_table_t table, dpo_id_t *dpo); extern void lookup_dpo_add_or_lock_w_table_id(u32 table_id, dpo_proto_t proto, + lookup_cast_t cast, lookup_input_t input, lookup_table_t table, dpo_id_t *dpo); |