From 93cc3ee3b3a9c9224a1446625882205f3282a949 Mon Sep 17 00:00:00 2001 From: Neale Ranns Date: Wed, 10 Oct 2018 07:22:51 -0700 Subject: GBP Endpoint Learning Learning GBP endpoints over vxlan-gbp tunnels Change-Id: I1db9fda5a16802d9ad8b4efd4e475614f3b21502 Signed-off-by: Neale Ranns --- src/plugins/gbp/gbp_vxlan.h | 133 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 133 insertions(+) create mode 100644 src/plugins/gbp/gbp_vxlan.h (limited to 'src/plugins/gbp/gbp_vxlan.h') diff --git a/src/plugins/gbp/gbp_vxlan.h b/src/plugins/gbp/gbp_vxlan.h new file mode 100644 index 00000000000..7aa22e351a2 --- /dev/null +++ b/src/plugins/gbp/gbp_vxlan.h @@ -0,0 +1,133 @@ +/* + * Copyright (c) 2018 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 __GBP_VXLAN_H__ +#define __GBP_VXLAN_H__ + +#include + +#define forecah_gbp_vxlan_tunnel_layer \ + _(L2, "l2") \ + _(L3, "l3") + +typedef enum gbp_vxlan_tunnel_layer_t_ +{ +#define _(s,n) GBP_VXLAN_TUN_##s, + forecah_gbp_vxlan_tunnel_layer +#undef _ +} gbp_vxlan_tunnel_layer_t; + +/** + * GBP VXLAN (template) tunnel. + * A template tunnel has only a VNI, it does not have src,dst address. + * As such it cannot be used to send traffic. It is used in the RX path + * to RX vxlan-gbp packets that do not match an existing tunnel; + */ +typedef struct gbp_vxlan_tunnel_t_ +{ + u32 gt_hw_if_index; + u32 gt_sw_if_index; + u32 gt_vni; + + /** + * The BD or RD value (depending on the layer) that the tunnel is bound to + */ + u32 gt_bd_rd_id; + gbp_vxlan_tunnel_layer_t gt_layer; + + union + { + struct + { + /** + * BD index (if L2) + */ + u32 gt_bd_index; + /** + * Reference to the GPB-BD + */ + index_t gt_gbd; + }; + struct + { + /** + * FIB inidices (if L3) + */ + u32 gt_fib_index[FIB_PROTOCOL_IP_MAX]; + /** + * References to the GBP-RD + */ + index_t gt_grd; + }; + }; + + /** + * gbp-itf config for this interface + */ + index_t gt_itf; + + /** + * list of child vxlan-gbp tunnels built from this template + */ + index_t *gt_tuns; +} gbp_vxlan_tunnel_t; + +/** + * The different types of interfaces that endpoints are learned on + */ +typedef enum gbp_vxlan_tunnel_type_t_ +{ + /** + * This is the object type deifend above. + * A template representation of a vxlan-gbp tunnel. from this tunnel + * type, real vxlan-gbp tunnels are created (by cloning the VNI) + */ + GBP_VXLAN_TEMPLATE_TUNNEL, + + /** + * A real VXLAN-GBP tunnel (from vnet/vxlan-gbp/...) + */ + VXLAN_GBP_TUNNEL, +} gbp_vxlan_tunnel_type_t; + +extern int gbp_vxlan_tunnel_add (u32 vni, gbp_vxlan_tunnel_layer_t layer, + u32 bd_rd_id, u32 * sw_if_indexp); +extern int gbp_vxlan_tunnel_del (u32 vni); + +extern gbp_vxlan_tunnel_type_t gbp_vxlan_tunnel_get_type (u32 sw_if_index); + +extern u32 gbp_vxlan_tunnel_clone_and_lock (u32 parent_tunnel, + const ip46_address_t * src, + const ip46_address_t * dst); + +extern void vxlan_gbp_tunnel_lock (u32 sw_if_index); +extern void vxlan_gbp_tunnel_unlock (u32 sw_if_index); +extern u32 vxlan_gbp_tunnel_get_parent (u32 sw_if_index); + +typedef walk_rc_t (*gbp_vxlan_cb_t) (gbp_vxlan_tunnel_t * gt, void *ctx); +extern void gbp_vxlan_walk (gbp_vxlan_cb_t cb, void *ctx); + +extern u8 *format_gbp_vxlan_tunnel (u8 * s, va_list * args); +extern u8 *format_gbp_vxlan_tunnel_layer (u8 * s, va_list * args); + +#endif + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ -- cgit 1.2.3-korg