zebra: evpn pip mac vlan up-down event

macvlan interface up/down event triggers
bgp to send updates for evpn routes
with changed RMAC and nexthop IP values.

Ticket:CM-26190
Reviewed By:
Testing Done:

Signed-off-by: Chirag Shah <chirag@cumulusnetworks.com>

3 files changed, 68 insertions, 2 deletions

diff --git a/zebra/interface.c b/zebra/interface.c
index eea80652e..02c00ebfa 100644
--- a/zebra/interface.c
+++ b/zebra/interface.c
@@ -1060,7 +1060,9 @@ void if_up(struct interface *ifp)
 						    zif->link_ifindex);
 		if (link_if)
 			zebra_vxlan_svi_up(ifp, link_if);
-	}
+	} else if (IS_ZEBRA_IF_MACVLAN(ifp))
+		zebra_vxlan_macvlan_up(ifp);
+
 }
 
 /* Interface goes down.  We have to manage different behavior of based
@@ -1092,7 +1094,8 @@ void if_down(struct interface *ifp)
 						    zif->link_ifindex);
 		if (link_if)
 			zebra_vxlan_svi_down(ifp, link_if);
-	}
+	} else if (IS_ZEBRA_IF_MACVLAN(ifp))
+		zebra_vxlan_macvlan_down(ifp);
 
 
 	/* Notify to the protocol daemons. */
diff --git a/zebra/zebra_vxlan.c b/zebra/zebra_vxlan.c
index b2cb726fa..14df91f40 100644
--- a/zebra/zebra_vxlan.c
+++ b/zebra/zebra_vxlan.c
@@ -8563,6 +8563,67 @@ int zebra_vxlan_svi_up(struct interface *ifp, struct interface *link_if)
 }
 
 /*
+ * Handle MAC-VLAN interface going down.
+ * L3VNI: When MAC-VLAN interface goes down,
+ * find its associated SVI and update type2/type-5 routes
+ * with SVI as RMAC
+ */
+void zebra_vxlan_macvlan_down(struct interface *ifp)
+{
+	zebra_l3vni_t *zl3vni = NULL;
+	struct zebra_if *zif, *link_zif;
+	struct interface *link_ifp, *link_if;
+
+	zif = ifp->info;
+	assert(zif);
+	link_ifp = zif->link;
+	link_zif = link_ifp->info;
+	assert(link_zif);
+
+	link_if = if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT),
+					    link_zif->link_ifindex);
+
+	zl3vni = zl3vni_from_svi(link_ifp, link_if);
+	if (zl3vni) {
+		zl3vni->mac_vlan_if = NULL;
+		if (is_l3vni_oper_up(zl3vni))
+			zebra_vxlan_process_l3vni_oper_up(zl3vni);
+	}
+}
+
+/*
+ * Handle MAC-VLAN interface going up.
+ * L3VNI: When MAC-VLAN interface comes up,
+ * find its associated SVI and update type-2 routes
+ * with MAC-VLAN's MAC as RMAC and for type-5 routes
+ * use SVI's MAC as RMAC.
+ */
+void zebra_vxlan_macvlan_up(struct interface *ifp)
+{
+	zebra_l3vni_t *zl3vni = NULL;
+	struct zebra_if *zif, *link_zif;
+	struct interface *link_ifp, *link_if;
+
+	zif = ifp->info;
+	assert(zif);
+	link_ifp = zif->link;
+	link_zif = link_ifp->info;
+	assert(link_zif);
+
+	link_if = if_lookup_by_index_per_ns(zebra_ns_lookup(NS_DEFAULT),
+					    link_zif->link_ifindex);
+	zl3vni = zl3vni_from_svi(link_ifp, link_if);
+	if (zl3vni) {
+		/* associate with macvlan (VRR) interface */
+		zl3vni->mac_vlan_if = ifp;
+
+		/* process oper-up */
+		if (is_l3vni_oper_up(zl3vni))
+			zebra_vxlan_process_l3vni_oper_up(zl3vni);
+	}
+}
+
+/*
  * Handle VxLAN interface down
  */
 int zebra_vxlan_if_down(struct interface *ifp)
diff --git a/zebra/zebra_vxlan.h b/zebra/zebra_vxlan.h
index bb80ae1c9..1a85c6e51 100644
--- a/zebra/zebra_vxlan.h
+++ b/zebra/zebra_vxlan.h
@@ -217,6 +217,8 @@ extern int zebra_vxlan_clear_dup_detect_vni(struct vty *vty,
 extern void zebra_vxlan_handle_result(struct zebra_dplane_ctx *ctx);
 
 extern void zebra_evpn_init(void);
+extern void zebra_vxlan_macvlan_up(struct interface *ifp);
+extern void zebra_vxlan_macvlan_down(struct interface *ifp);
 
 #ifdef __cplusplus
 }