1 files changed, 444 insertions, 118 deletions

diff --git a/zebra/zebra_dplane.c b/zebra/zebra_dplane.c
index feede21cd9..fc316dbcb6 100644
--- a/zebra/zebra_dplane.c
+++ b/zebra/zebra_dplane.c
@@ -62,49 +62,25 @@ const uint32_t DPLANE_DEFAULT_NEW_WORK = 100;
 #endif	/* DPLANE_DEBUG */
 
 /*
- * The context block used to exchange info about route updates across
- * the boundary between the zebra main context (and pthread) and the
- * dataplane layer (and pthread).
+ * Route information captured for route updates.
  */
-struct zebra_dplane_ctx {
-
-	/* Operation code */
-	enum dplane_op_e zd_op;
-
-	/* Status on return */
-	enum zebra_dplane_result zd_status;
-
-	/* Dplane provider id */
-	uint32_t zd_provider;
-
-	/* Flags - used by providers, e.g. */
-	int zd_flags;
-
-	/* TODO -- internal/sub-operation status? */
-	enum zebra_dplane_result zd_remote_status;
-	enum zebra_dplane_result zd_kernel_status;
+struct dplane_route_info {
 
 	/* Dest and (optional) source prefixes */
 	struct prefix zd_dest;
 	struct prefix zd_src;
 
-	bool zd_is_update;
-
-	uint32_t zd_seq;
-	uint32_t zd_old_seq;
-	vrf_id_t zd_vrf_id;
-	uint32_t zd_table_id;
+	afi_t zd_afi;
+	safi_t zd_safi;
 
 	int zd_type;
 	int zd_old_type;
 
-	afi_t zd_afi;
-	safi_t zd_safi;
-
 	route_tag_t zd_tag;
 	route_tag_t zd_old_tag;
 	uint32_t zd_metric;
 	uint32_t zd_old_metric;
+
 	uint16_t zd_instance;
 	uint16_t zd_old_instance;
 
@@ -114,9 +90,6 @@ struct zebra_dplane_ctx {
 	uint32_t zd_mtu;
 	uint32_t zd_nexthop_mtu;
 
-	/* Namespace info */
-	struct zebra_dplane_info zd_ns_info;
-
 	/* Nexthops */
 	struct nexthop_group zd_ng;
 
@@ -125,6 +98,48 @@ struct zebra_dplane_ctx {
 
 	/* TODO -- use fixed array of nexthops, to avoid mallocs? */
 
+};
+
+/*
+ * The context block used to exchange info about route updates across
+ * the boundary between the zebra main context (and pthread) and the
+ * dataplane layer (and pthread).
+ */
+struct zebra_dplane_ctx {
+
+	/* Operation code */
+	enum dplane_op_e zd_op;
+
+	/* Status on return */
+	enum zebra_dplane_result zd_status;
+
+	/* Dplane provider id */
+	uint32_t zd_provider;
+
+	/* Flags - used by providers, e.g. */
+	int zd_flags;
+
+	bool zd_is_update;
+
+	uint32_t zd_seq;
+	uint32_t zd_old_seq;
+
+	/* TODO -- internal/sub-operation status? */
+	enum zebra_dplane_result zd_remote_status;
+	enum zebra_dplane_result zd_kernel_status;
+
+	vrf_id_t zd_vrf_id;
+	uint32_t zd_table_id;
+
+	/* Support info for either route or LSP update */
+	union {
+		struct dplane_route_info rinfo;
+		zebra_lsp_t lsp;
+	} u;
+
+	/* Namespace info, used especially for netlink kernel communication */
+	struct zebra_dplane_info zd_ns_info;
+
 	/* Embedded list linkage */
 	TAILQ_ENTRY(zebra_dplane_ctx) zd_q_entries;
 };
@@ -218,6 +233,13 @@ static struct zebra_dplane_globals {
 	_Atomic uint32_t dg_routes_queued;
 	_Atomic uint32_t dg_routes_queued_max;
 	_Atomic uint32_t dg_route_errors;
+	_Atomic uint32_t dg_other_errors;
+
+	_Atomic uint32_t dg_lsps_in;
+	_Atomic uint32_t dg_lsps_queued;
+	_Atomic uint32_t dg_lsps_queued_max;
+	_Atomic uint32_t dg_lsp_errors;
+
 	_Atomic uint32_t dg_update_yields;
 
 	/* Dataplane pthread */
@@ -251,6 +273,8 @@ static struct zebra_dplane_globals {
 static int dplane_thread_loop(struct thread *event);
 static void dplane_info_from_zns(struct zebra_dplane_info *ns_info,
 				 struct zebra_ns *zns);
+static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp,
+						    enum dplane_op_e op);
 
 /*
  * Public APIs
@@ -282,27 +306,68 @@ static struct zebra_dplane_ctx *dplane_ctx_alloc(void)
  */
 static void dplane_ctx_free(struct zebra_dplane_ctx **pctx)
 {
-	if (pctx) {
-		DPLANE_CTX_VALID(*pctx);
+	if (pctx == NULL)
+		return;
 
-		/* TODO -- just freeing memory, but would like to maintain
-		 * a pool
-		 */
+	DPLANE_CTX_VALID(*pctx);
 
-		/* Free embedded nexthops */
-		if ((*pctx)->zd_ng.nexthop) {
+	/* TODO -- just freeing memory, but would like to maintain
+	 * a pool
+	 */
+
+	/* Some internal allocations may need to be freed, depending on
+	 * the type of info captured in the ctx.
+	 */
+	switch ((*pctx)->zd_op) {
+	case DPLANE_OP_ROUTE_INSTALL:
+	case DPLANE_OP_ROUTE_UPDATE:
+	case DPLANE_OP_ROUTE_DELETE:
+
+		/* Free allocated nexthops */
+		if ((*pctx)->u.rinfo.zd_ng.nexthop) {
 			/* This deals with recursive nexthops too */
-			nexthops_free((*pctx)->zd_ng.nexthop);
+			nexthops_free((*pctx)->u.rinfo.zd_ng.nexthop);
+
+			(*pctx)->u.rinfo.zd_ng.nexthop = NULL;
 		}
 
-		if ((*pctx)->zd_old_ng.nexthop) {
+		if ((*pctx)->u.rinfo.zd_old_ng.nexthop) {
 			/* This deals with recursive nexthops too */
-			nexthops_free((*pctx)->zd_old_ng.nexthop);
+			nexthops_free((*pctx)->u.rinfo.zd_old_ng.nexthop);
+
+			(*pctx)->u.rinfo.zd_old_ng.nexthop = NULL;
 		}
 
-		XFREE(MTYPE_DP_CTX, *pctx);
-		*pctx = NULL;
+		break;
+
+	case DPLANE_OP_LSP_INSTALL:
+	case DPLANE_OP_LSP_UPDATE:
+	case DPLANE_OP_LSP_DELETE:
+	{
+		zebra_nhlfe_t *nhlfe, *next;
+
+		/* Free allocated NHLFEs */
+		for (nhlfe = (*pctx)->u.lsp.nhlfe_list; nhlfe; nhlfe = next) {
+			next = nhlfe->next;
+
+			zebra_mpls_nhlfe_del(nhlfe);
+		}
+
+		/* Clear pointers in lsp struct, in case we're cacheing
+		 * free context structs.
+		 */
+		(*pctx)->u.lsp.nhlfe_list = NULL;
+		(*pctx)->u.lsp.best_nhlfe = NULL;
+
+		break;
+	}
+
+	case DPLANE_OP_NONE:
+		break;
 	}
+
+	XFREE(MTYPE_DP_CTX, *pctx);
+	*pctx = NULL;
 }
 
 /*
@@ -414,6 +479,16 @@ const char *dplane_op2str(enum dplane_op_e op)
 		ret = "ROUTE_DELETE";
 		break;
 
+	case DPLANE_OP_LSP_INSTALL:
+		ret = "LSP_INSTALL";
+		break;
+	case DPLANE_OP_LSP_UPDATE:
+		ret = "LSP_UPDATE";
+		break;
+	case DPLANE_OP_LSP_DELETE:
+		ret = "LSP_DELETE";
+		break;
+
 	};
 
 	return ret;
@@ -442,7 +517,7 @@ const struct prefix *dplane_ctx_get_dest(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return &(ctx->zd_dest);
+	return &(ctx->u.rinfo.zd_dest);
 }
 
 /* Source prefix is a little special - return NULL for "no src prefix" */
@@ -450,11 +525,11 @@ const struct prefix *dplane_ctx_get_src(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	if (ctx->zd_src.prefixlen == 0 &&
-	    IN6_IS_ADDR_UNSPECIFIED(&(ctx->zd_src.u.prefix6))) {
+	if (ctx->u.rinfo.zd_src.prefixlen == 0 &&
+	    IN6_IS_ADDR_UNSPECIFIED(&(ctx->u.rinfo.zd_src.u.prefix6))) {
 		return NULL;
 	} else {
-		return &(ctx->zd_src);
+		return &(ctx->u.rinfo.zd_src);
 	}
 }
 
@@ -490,28 +565,28 @@ int dplane_ctx_get_type(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_type;
+	return ctx->u.rinfo.zd_type;
 }
 
 int dplane_ctx_get_old_type(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_old_type;
+	return ctx->u.rinfo.zd_old_type;
 }
 
 afi_t dplane_ctx_get_afi(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_afi;
+	return ctx->u.rinfo.zd_afi;
 }
 
 safi_t dplane_ctx_get_safi(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_safi;
+	return ctx->u.rinfo.zd_safi;
 }
 
 uint32_t dplane_ctx_get_table(const struct zebra_dplane_ctx *ctx)
@@ -525,70 +600,70 @@ route_tag_t dplane_ctx_get_tag(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_tag;
+	return ctx->u.rinfo.zd_tag;
 }
 
 route_tag_t dplane_ctx_get_old_tag(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_old_tag;
+	return ctx->u.rinfo.zd_old_tag;
 }
 
 uint16_t dplane_ctx_get_instance(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_instance;
+	return ctx->u.rinfo.zd_instance;
 }
 
 uint16_t dplane_ctx_get_old_instance(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_old_instance;
+	return ctx->u.rinfo.zd_old_instance;
 }
 
 uint32_t dplane_ctx_get_metric(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_metric;
+	return ctx->u.rinfo.zd_metric;
 }
 
 uint32_t dplane_ctx_get_old_metric(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_old_metric;
+	return ctx->u.rinfo.zd_old_metric;
 }
 
 uint32_t dplane_ctx_get_mtu(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_mtu;
+	return ctx->u.rinfo.zd_mtu;
 }
 
 uint32_t dplane_ctx_get_nh_mtu(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_nexthop_mtu;
+	return ctx->u.rinfo.zd_nexthop_mtu;
 }
 
 uint8_t dplane_ctx_get_distance(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_distance;
+	return ctx->u.rinfo.zd_distance;
 }
 
 uint8_t dplane_ctx_get_old_distance(const struct zebra_dplane_ctx *ctx)
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return ctx->zd_old_distance;
+	return ctx->u.rinfo.zd_old_distance;
 }
 
 const struct nexthop_group *dplane_ctx_get_ng(
@@ -596,7 +671,7 @@ const struct nexthop_group *dplane_ctx_get_ng(
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return &(ctx->zd_ng);
+	return &(ctx->u.rinfo.zd_ng);
 }
 
 const struct nexthop_group *dplane_ctx_get_old_ng(
@@ -604,7 +679,7 @@ const struct nexthop_group *dplane_ctx_get_old_ng(
 {
 	DPLANE_CTX_VALID(ctx);
 
-	return &(ctx->zd_old_ng);
+	return &(ctx->u.rinfo.zd_old_ng);
 }
 
 const struct zebra_dplane_info *dplane_ctx_get_ns(
@@ -615,6 +690,50 @@ const struct zebra_dplane_info *dplane_ctx_get_ns(
 	return &(ctx->zd_ns_info);
 }
 
+/* Accessors for LSP information */
+
+mpls_label_t dplane_ctx_get_in_label(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.lsp.ile.in_label;
+}
+
+uint8_t dplane_ctx_get_addr_family(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.lsp.addr_family;
+}
+
+uint32_t dplane_ctx_get_lsp_flags(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.lsp.flags;
+}
+
+zebra_nhlfe_t *dplane_ctx_get_nhlfe(struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.lsp.nhlfe_list;
+}
+
+zebra_nhlfe_t *dplane_ctx_get_best_nhlfe(struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.lsp.best_nhlfe;
+}
+
+uint32_t dplane_ctx_get_lsp_num_ecmp(const struct zebra_dplane_ctx *ctx)
+{
+	DPLANE_CTX_VALID(ctx);
+
+	return ctx->u.lsp.num_ecmp;
+}
+
 /*
  * End of dplane context accessors
  */
@@ -652,6 +771,28 @@ uint32_t dplane_get_in_queue_len(void)
 }
 
 /*
+ * Common dataplane context init with zebra namespace info.
+ */
+static int dplane_ctx_ns_init(struct zebra_dplane_ctx *ctx,
+			      struct zebra_ns *zns,
+			      bool is_update)
+{
+	dplane_info_from_zns(&(ctx->zd_ns_info), zns);
+
+#if defined(HAVE_NETLINK)
+	/* Increment message counter after copying to context struct - may need
+	 * two messages in some 'update' cases.
+	 */
+	if (is_update)
+		zns->netlink_dplane.seq += 2;
+	else
+		zns->netlink_dplane.seq++;
+#endif	/* HAVE_NETLINK */
+
+	return AOK;
+}
+
+/*
  * Initialize a context block for a route update from zebra data structs.
  */
 static int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx,
@@ -673,61 +814,50 @@ static int dplane_ctx_route_init(struct zebra_dplane_ctx *ctx,
 	ctx->zd_op = op;
 	ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS;
 
-	ctx->zd_type = re->type;
-	ctx->zd_old_type = re->type;
+	ctx->u.rinfo.zd_type = re->type;
+	ctx->u.rinfo.zd_old_type = re->type;
 
 	/* Prefixes: dest, and optional source */
 	srcdest_rnode_prefixes(rn, &p, &src_p);
 
-	prefix_copy(&(ctx->zd_dest), p);
+	prefix_copy(&(ctx->u.rinfo.zd_dest), p);
 
 	if (src_p)
-		prefix_copy(&(ctx->zd_src), src_p);
+		prefix_copy(&(ctx->u.rinfo.zd_src), src_p);
 	else
-		memset(&(ctx->zd_src), 0, sizeof(ctx->zd_src));
+		memset(&(ctx->u.rinfo.zd_src), 0, sizeof(ctx->u.rinfo.zd_src));
 
 	ctx->zd_table_id = re->table;
 
-	ctx->zd_metric = re->metric;
-	ctx->zd_old_metric = re->metric;
+	ctx->u.rinfo.zd_metric = re->metric;
+	ctx->u.rinfo.zd_old_metric = re->metric;
 	ctx->zd_vrf_id = re->vrf_id;
-	ctx->zd_mtu = re->mtu;
-	ctx->zd_nexthop_mtu = re->nexthop_mtu;
-	ctx->zd_instance = re->instance;
-	ctx->zd_tag = re->tag;
-	ctx->zd_old_tag = re->tag;
-	ctx->zd_distance = re->distance;
+	ctx->u.rinfo.zd_mtu = re->mtu;
+	ctx->u.rinfo.zd_nexthop_mtu = re->nexthop_mtu;
+	ctx->u.rinfo.zd_instance = re->instance;
+	ctx->u.rinfo.zd_tag = re->tag;
+	ctx->u.rinfo.zd_old_tag = re->tag;
+	ctx->u.rinfo.zd_distance = re->distance;
 
 	table = srcdest_rnode_table(rn);
 	info = table->info;
 
-	ctx->zd_afi = info->afi;
-	ctx->zd_safi = info->safi;
+	ctx->u.rinfo.zd_afi = info->afi;
+	ctx->u.rinfo.zd_safi = info->safi;
 
 	/* Extract ns info - can't use pointers to 'core' structs */
 	zvrf = vrf_info_lookup(re->vrf_id);
 	zns = zvrf->zns;
 
-	/* Internal copy helper */
-	dplane_info_from_zns(&(ctx->zd_ns_info), zns);
-
-#if defined(HAVE_NETLINK)
-	/* Increment message counter after copying to context struct - may need
-	 * two messages in some 'update' cases.
-	 */
-	if (op == DPLANE_OP_ROUTE_UPDATE)
-		zns->netlink_dplane.seq += 2;
-	else
-		zns->netlink_dplane.seq++;
-#endif /* NETLINK*/
+	dplane_ctx_ns_init(ctx, zns, (op == DPLANE_OP_ROUTE_UPDATE));
 
 	/* Copy nexthops; recursive info is included too */
-	copy_nexthops(&(ctx->zd_ng.nexthop), re->ng.nexthop, NULL);
+	copy_nexthops(&(ctx->u.rinfo.zd_ng.nexthop), re->ng.nexthop, NULL);
 
 	/* TODO -- maybe use array of nexthops to avoid allocs? */
 
 	/* Ensure that the dplane's nexthops flags are clear. */
-	for (ALL_NEXTHOPS(ctx->zd_ng, nexthop))
+	for (ALL_NEXTHOPS(ctx->u.rinfo.zd_ng, nexthop))
 		UNSET_FLAG(nexthop->flags, NEXTHOP_FLAG_FIB);
 
 	/* Trying out the sequence number idea, so we can try to detect
@@ -743,15 +873,79 @@ done:
 }
 
 /*
+ * Capture information for an LSP update in a dplane context.
+ */
+static int dplane_ctx_lsp_init(struct zebra_dplane_ctx *ctx,
+			       enum dplane_op_e op,
+			       zebra_lsp_t *lsp)
+{
+	int ret = AOK;
+	zebra_nhlfe_t *nhlfe, *new_nhlfe;
+
+	if (IS_ZEBRA_DEBUG_DPLANE_DETAIL)
+		zlog_debug("init dplane ctx %s: in-label %u ecmp# %d",
+			   dplane_op2str(op), lsp->ile.in_label,
+			   lsp->num_ecmp);
+
+	ctx->zd_op = op;
+	ctx->zd_status = ZEBRA_DPLANE_REQUEST_SUCCESS;
+
+	/* Capture namespace info */
+	dplane_ctx_ns_init(ctx, zebra_ns_lookup(NS_DEFAULT),
+			   (op == DPLANE_OP_LSP_UPDATE));
+
+	memset(&ctx->u.lsp, 0, sizeof(ctx->u.lsp));
+
+	ctx->u.lsp.ile = lsp->ile;
+	ctx->u.lsp.addr_family = lsp->addr_family;
+	ctx->u.lsp.num_ecmp = lsp->num_ecmp;
+	ctx->u.lsp.flags = lsp->flags;
+
+	/* Copy source LSP's nhlfes, and capture 'best' nhlfe */
+	for (nhlfe = lsp->nhlfe_list; nhlfe; nhlfe = nhlfe->next) {
+		/* Not sure if this is meaningful... */
+		if (nhlfe->nexthop == NULL)
+			continue;
+
+		new_nhlfe =
+			zebra_mpls_lsp_add_nhlfe(
+				&(ctx->u.lsp),
+				nhlfe->type,
+				nhlfe->nexthop->type,
+				&(nhlfe->nexthop->gate),
+				nhlfe->nexthop->ifindex,
+				nhlfe->nexthop->nh_label->label[0]);
+
+		if (new_nhlfe == NULL || new_nhlfe->nexthop == NULL) {
+			ret = ENOMEM;
+			break;
+		}
+
+		/* Need to copy flags too */
+		new_nhlfe->flags = nhlfe->flags;
+		new_nhlfe->nexthop->flags = nhlfe->nexthop->flags;
+
+		if (nhlfe == lsp->best_nhlfe)
+			ctx->u.lsp.best_nhlfe = new_nhlfe;
+	}
+
+	/* On error the ctx will be cleaned-up, so we don't need to
+	 * deal with any allocated nhlfe or nexthop structs here.
+	 */
+
+	return ret;
+}
+
+/*
  * Enqueue a new route update,
- * and ensure an event is active for the dataplane thread.
+ * and ensure an event is active for the dataplane pthread.
  */
 static int dplane_route_enqueue(struct zebra_dplane_ctx *ctx)
 {
 	int ret = EINVAL;
 	uint32_t high, curr;
 
-	/* Enqueue for processing by the dataplane thread */
+	/* Enqueue for processing by the dataplane pthread */
 	DPLANE_LOCK();
 	{
 		TAILQ_INSERT_TAIL(&zdplane_info.dg_route_ctx_q, ctx,
@@ -821,17 +1015,17 @@ dplane_route_update_internal(struct route_node *rn,
 			old_re->dplane_sequence++;
 			ctx->zd_old_seq = old_re->dplane_sequence;
 
-			ctx->zd_old_tag = old_re->tag;
-			ctx->zd_old_type = old_re->type;
-			ctx->zd_old_instance = old_re->instance;
-			ctx->zd_old_distance = old_re->distance;
-			ctx->zd_old_metric = old_re->metric;
+			ctx->u.rinfo.zd_old_tag = old_re->tag;
+			ctx->u.rinfo.zd_old_type = old_re->type;
+			ctx->u.rinfo.zd_old_instance = old_re->instance;
+			ctx->u.rinfo.zd_old_distance = old_re->distance;
+			ctx->u.rinfo.zd_old_metric = old_re->metric;
 
 #ifndef HAVE_NETLINK
 			/* For bsd, capture previous re's nexthops too, sigh.
 			 * We'll need these to do per-nexthop deletes.
 			 */
-			copy_nexthops(&(ctx->zd_old_ng.nexthop),
+			copy_nexthops(&(ctx->u.rinfo.zd_old_ng.nexthop),
 				      old_re->ng.nexthop, NULL);
 #endif	/* !HAVE_NETLINK */
 		}
@@ -847,10 +1041,11 @@ done:
 
 	if (ret == AOK)
 		result = ZEBRA_DPLANE_REQUEST_QUEUED;
-	else if (ctx) {
+	else {
 		atomic_fetch_add_explicit(&zdplane_info.dg_route_errors, 1,
 					  memory_order_relaxed);
-		dplane_ctx_free(&ctx);
+		if (ctx)
+			dplane_ctx_free(&ctx);
 	}
 
 	return result;
@@ -911,11 +1106,85 @@ done:
 }
 
 /*
+ * Enqueue LSP add for the dataplane.
+ */
+enum zebra_dplane_result dplane_lsp_add(zebra_lsp_t *lsp)
+{
+	enum zebra_dplane_result ret =
+		lsp_update_internal(lsp, DPLANE_OP_LSP_INSTALL);
+
+	return ret;
+}
+
+/*
+ * Enqueue LSP update for the dataplane.
+ */
+enum zebra_dplane_result dplane_lsp_update(zebra_lsp_t *lsp)
+{
+	enum zebra_dplane_result ret =
+		lsp_update_internal(lsp, DPLANE_OP_LSP_UPDATE);
+
+	return ret;
+}
+
+/*
+ * Enqueue LSP delete for the dataplane.
+ */
+enum zebra_dplane_result dplane_lsp_delete(zebra_lsp_t *lsp)
+{
+	enum zebra_dplane_result ret =
+		lsp_update_internal(lsp, DPLANE_OP_LSP_DELETE);
+
+	return ret;
+}
+
+/*
+ * Common internal LSP update utility
+ */
+static enum zebra_dplane_result lsp_update_internal(zebra_lsp_t *lsp,
+						    enum dplane_op_e op)
+{
+	enum zebra_dplane_result result = ZEBRA_DPLANE_REQUEST_FAILURE;
+	int ret = EINVAL;
+	struct zebra_dplane_ctx *ctx = NULL;
+
+	/* Obtain context block */
+	ctx = dplane_ctx_alloc();
+	if (ctx == NULL) {
+		ret = ENOMEM;
+		goto done;
+	}
+
+	ret = dplane_ctx_lsp_init(ctx, op, lsp);
+	if (ret != AOK)
+		goto done;
+
+	ret = dplane_route_enqueue(ctx);
+
+done:
+	/* Update counter */
+	atomic_fetch_add_explicit(&zdplane_info.dg_lsps_in, 1,
+				  memory_order_relaxed);
+
+	if (ret == AOK)
+		result = ZEBRA_DPLANE_REQUEST_QUEUED;
+	else {
+		atomic_fetch_add_explicit(&zdplane_info.dg_lsp_errors, 1,
+					  memory_order_relaxed);
+		if (ctx)
+			dplane_ctx_free(&ctx);
+	}
+
+	return result;
+}
+
+/*
  * Handler for 'show dplane'
  */
 int dplane_show_helper(struct vty *vty, bool detailed)
 {
-	uint64_t queued, queue_max, limit, errs, incoming, yields;
+	uint64_t queued, queue_max, limit, errs, incoming, yields,
+		other_errs;
 
 	/* Using atomics because counters are being changed in different
 	 * pthread contexts.
@@ -932,14 +1201,17 @@ int dplane_show_helper(struct vty *vty, bool detailed)
 				    memory_order_relaxed);
 	yields = atomic_load_explicit(&zdplane_info.dg_update_yields,
 				      memory_order_relaxed);
+	other_errs = atomic_load_explicit(&zdplane_info.dg_other_errors,
+					  memory_order_relaxed);
 
 	vty_out(vty, "Zebra dataplane:\nRoute updates:            %"PRIu64"\n",
 		incoming);
 	vty_out(vty, "Route update errors:      %"PRIu64"\n", errs);
+	vty_out(vty, "Other errors       :      %"PRIu64"\n", other_errs);
 	vty_out(vty, "Route update queue limit: %"PRIu64"\n", limit);
 	vty_out(vty, "Route update queue depth: %"PRIu64"\n", queued);
 	vty_out(vty, "Route update queue max:   %"PRIu64"\n", queue_max);
-	vty_out(vty, "Route update yields:      %"PRIu64"\n", yields);
+	vty_out(vty, "Dplane update yields:      %"PRIu64"\n", yields);
 
 	return CMD_SUCCESS;
 }
@@ -1219,6 +1491,55 @@ int dplane_provider_work_ready(void)
  */
 
 /*
+ * Handler for kernel LSP updates
+ */
+static enum zebra_dplane_result
+kernel_dplane_lsp_update(struct zebra_dplane_ctx *ctx)
+{
+	enum zebra_dplane_result res;
+
+	/* Call into the synchronous kernel-facing code here */
+	res = kernel_lsp_update(ctx);
+
+	if (res != ZEBRA_DPLANE_REQUEST_SUCCESS)
+		atomic_fetch_add_explicit(
+			&zdplane_info.dg_lsp_errors, 1,
+			memory_order_relaxed);
+
+	return res;
+}
+
+/*
+ * Handler for kernel route updates
+ */
+static enum zebra_dplane_result
+kernel_dplane_route_update(struct zebra_dplane_ctx *ctx)
+{
+	enum zebra_dplane_result res;
+
+	if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) {
+		char dest_str[PREFIX_STRLEN];
+
+		prefix2str(dplane_ctx_get_dest(ctx),
+			   dest_str, sizeof(dest_str));
+
+		zlog_debug("%u:%s Dplane route update ctx %p op %s",
+			   dplane_ctx_get_vrf(ctx), dest_str,
+			   ctx, dplane_op2str(dplane_ctx_get_op(ctx)));
+	}
+
+	/* Call into the synchronous kernel-facing code here */
+	res = kernel_route_update(ctx);
+
+	if (res != ZEBRA_DPLANE_REQUEST_SUCCESS)
+		atomic_fetch_add_explicit(
+			&zdplane_info.dg_route_errors, 1,
+			memory_order_relaxed);
+
+	return res;
+}
+
+/*
  * Kernel provider callback
  */
 static int kernel_dplane_process_func(struct zebra_dplane_provider *prov)
@@ -1239,25 +1560,30 @@ static int kernel_dplane_process_func(struct zebra_dplane_provider *prov)
 		if (ctx == NULL)
 			break;
 
-		if (IS_ZEBRA_DEBUG_DPLANE_DETAIL) {
-			char dest_str[PREFIX_STRLEN];
-
-			prefix2str(dplane_ctx_get_dest(ctx),
-				   dest_str, sizeof(dest_str));
+		/* Dispatch to appropriate kernel-facing apis */
+		switch (dplane_ctx_get_op(ctx)) {
 
-			zlog_debug("%u:%s Dplane route update ctx %p op %s",
-				   dplane_ctx_get_vrf(ctx), dest_str,
-				   ctx, dplane_op2str(dplane_ctx_get_op(ctx)));
-		}
+		case DPLANE_OP_ROUTE_INSTALL:
+		case DPLANE_OP_ROUTE_UPDATE:
+		case DPLANE_OP_ROUTE_DELETE:
+			res = kernel_dplane_route_update(ctx);
+			break;
 
-		/* Call into the synchronous kernel-facing code here */
-		res = kernel_route_update(ctx);
+		case DPLANE_OP_LSP_INSTALL:
+		case DPLANE_OP_LSP_UPDATE:
+		case DPLANE_OP_LSP_DELETE:
+			res = kernel_dplane_lsp_update(ctx);
+			break;
 
-		if (res != ZEBRA_DPLANE_REQUEST_SUCCESS)
+		default:
 			atomic_fetch_add_explicit(
-				&zdplane_info.dg_route_errors, 1,
+				&zdplane_info.dg_other_errors, 1,
 				memory_order_relaxed);
 
+			res = ZEBRA_DPLANE_REQUEST_FAILURE;
+			break;
+		}
+
 		dplane_ctx_set_status(ctx, res);
 
 		dplane_provider_enqueue_out_ctx(prov, ctx);