bgpd: handle local ES del or transition to LACP bypass

[mirror_frr.git] / bgpd / bgp_evpn_mh.h

diff --git a/bgpd/bgp_evpn_mh.h b/bgpd/bgp_evpn_mh.h
index 818fad2eb6f9fbefe070b689ab6c189102f4b8c4..c96de8687159895b3e05a32f89be9f1f002b9630 100644 (file)
--- a/bgpd/bgp_evpn_mh.h
+++ b/bgpd/bgp_evpn_mh.h
@@ -105,8 +105,17 @@ struct bgp_evpn_es {
 
        /* List of MAC-IP VNI paths using this ES as destination -
         * element is bgp_path_info_extra->es_info
+        * Note: Only local/zebra-added MACIP paths in the VNI
+        * routing table are linked to this list
         */
-       struct list *macip_path_list;
+       struct list *macip_evi_path_list;
+
+       /* List of MAC-IP paths in the global routing table using this
+        * ES as destination - data is bgp_path_info_extra->es_info
+        * Note: Only non-local/imported MACIP paths in the global
+        * routing table are linked to this list
+        */
+       struct list *macip_global_path_list;
 
        /* Number of remote VNIs referencing this ES */
        uint32_t remote_es_evi_cnt;
@@ -125,9 +134,9 @@ struct bgp_evpn_es {
        /* preference config for BUM-DF election. advertised via the ESR. */
        uint16_t df_pref;
 
-       QOBJ_FIELDS
+       QOBJ_FIELDS;
 };
-DECLARE_QOBJ_TYPE(bgp_evpn_es)
+DECLARE_QOBJ_TYPE(bgp_evpn_es);
 RB_HEAD(bgp_es_rb_head, bgp_evpn_es);
 RB_PROTOTYPE(bgp_es_rb_head, bgp_evpn_es, rb_node, bgp_es_rb_cmp);
 
@@ -241,6 +250,26 @@ struct bgp_evpn_es_evi_vtep {
        struct bgp_evpn_es_vtep *es_vtep;
 };
 
+/* A nexthop is created when a path (imported from an EVPN type-2 route)
+ * is added to the VRF route table using that nexthop.
+ * It is added on first pi reference and removed on last pi deref.
+ */
+struct bgp_evpn_nh {
+       /* backpointer to the VRF */
+       struct bgp *bgp_vrf;
+       /* nexthop/VTEP IP */
+       struct ipaddr ip;
+       /* description for easy logging */
+       char nh_str[INET6_ADDRSTRLEN];
+       struct ethaddr rmac;
+       /* pi from which we are pulling the nh RMAC */
+       struct bgp_path_info *ref_pi;
+       /* List of VRF paths using this nexthop */
+       struct list *pi_list;
+       uint8_t flags;
+#define BGP_EVPN_NH_READY_FOR_ZEBRA (1 << 0)
+};
+
 /* multihoming information stored in bgp_master */
 #define bgp_mh_info (bm->mh_info)
 struct bgp_evpn_mh_info {
@@ -273,6 +302,12 @@ struct bgp_evpn_mh_info {
        /* Skip EAD-EVI advertisements by turning off this knob */
        bool ead_evi_tx;
 #define BGP_EVPN_MH_EAD_EVI_TX_DEF true
+       /* If the Local ES is inactive we advertise the MAC-IP without the
+        * L3 ecomm
+        */
+       bool suppress_l3_ecomm_on_inactive_es;
+       /* Setup EVPN PE nexthops and their RMAC in bgpd */
+       bool bgp_evpn_nh_setup;
 };
 
 /****************************************************************************/
@@ -330,11 +365,18 @@ static inline uint32_t bgp_evpn_attr_get_df_pref(struct attr *attr)
        return (attr) ? attr->df_pref : 0;
 }
 
+static inline bool bgp_evpn_local_es_is_active(struct bgp_evpn_es *es)
+{
+       return (es->flags & BGP_EVPNES_OPER_UP)
+              && !(es->flags & BGP_EVPNES_BYPASS);
+}
+
 /****************************************************************************/
 extern int bgp_evpn_es_route_install_uninstall(struct bgp *bgp,
                struct bgp_evpn_es *es, afi_t afi, safi_t safi,
                struct prefix_evpn *evp, struct bgp_path_info *pi,
                int install);
+extern void update_type1_routes_for_evi(struct bgp *bgp, struct bgpevpn *vpn);
 int bgp_evpn_type1_route_process(struct peer *peer, afi_t afi, safi_t safi,
                struct attr *attr, uint8_t *pfx, int psize,
                uint32_t addpath_id);
@@ -361,20 +403,28 @@ void bgp_evpn_es_evi_show_vni(struct vty *vty, vni_t vni,
                bool uj, bool detail);
 void bgp_evpn_es_evi_show(struct vty *vty, bool uj, bool detail);
 struct bgp_evpn_es *bgp_evpn_es_find(const esi_t *esi);
-extern bool bgp_evpn_is_esi_local(esi_t *esi);
 extern void bgp_evpn_vrf_es_init(struct bgp *bgp_vrf);
+extern bool bgp_evpn_is_esi_local_and_non_bypass(esi_t *esi);
 extern void bgp_evpn_es_vrf_deref(struct bgp_evpn_es_evi *es_evi);
 extern void bgp_evpn_es_vrf_ref(struct bgp_evpn_es_evi *es_evi,
                                struct bgp *bgp_vrf);
-extern void bgp_evpn_path_es_info_free(struct bgp_path_es_info *es_info);
-extern void bgp_evpn_path_es_unlink(struct bgp_path_es_info *es_info);
+extern void bgp_evpn_path_mh_info_free(struct bgp_path_mh_info *mh_info);
 extern void bgp_evpn_path_es_link(struct bgp_path_info *pi, vni_t vni,
                                  esi_t *esi);
-extern bool bgp_evpn_es_is_vtep_active(esi_t *esi, struct in_addr nh);
 extern bool bgp_evpn_path_es_use_nhg(struct bgp *bgp_vrf,
                                     struct bgp_path_info *pi, uint32_t *nhg_p);
 extern void bgp_evpn_es_vrf_show(struct vty *vty, bool uj,
                                 struct bgp_evpn_es *es);
 extern void bgp_evpn_es_vrf_show_esi(struct vty *vty, esi_t *esi, bool uj);
+extern void bgp_evpn_switch_ead_evi_rx(void);
+extern bool bgp_evpn_es_add_l3_ecomm_ok(esi_t *esi);
+extern void bgp_evpn_es_vrf_use_nhg(struct bgp *bgp_vrf, esi_t *esi,
+                                   bool *use_l3nhg, bool *is_l3nhg_active,
+                                   struct bgp_evpn_es_vrf **es_vrf_p);
+extern void bgp_evpn_nh_init(struct bgp *bgp_vrf);
+extern void bgp_evpn_nh_finish(struct bgp *bgp_vrf);
+extern void bgp_evpn_nh_show(struct vty *vty, bool uj);
+extern void bgp_evpn_path_nh_add(struct bgp *bgp_vrf, struct bgp_path_info *pi);
+extern void bgp_evpn_path_nh_del(struct bgp *bgp_vrf, struct bgp_path_info *pi);
 
 #endif /* _FRR_BGP_EVPN_MH_H */