diff --git a/platform/linux-generic/include/odp_buffer_inlines.h b/platform/linux-generic/include/odp_buffer_inlines.h
index cf817d907ab5..4c0e73390948 100644
--- a/platform/linux-generic/include/odp_buffer_inlines.h
+++ b/platform/linux-generic/include/odp_buffer_inlines.h
@@ -21,6 +21,8 @@ extern "C" {
 
 odp_event_type_t _odp_buffer_event_type(odp_buffer_t buf);
 void _odp_buffer_event_type_set(odp_buffer_t buf, int ev);
+odp_event_subtype_t _odp_buffer_event_subtype(odp_buffer_t buf);
+void _odp_buffer_event_subtype_set(odp_buffer_t buf, int ev);
 int odp_buffer_snprint(char *str, uint32_t n, odp_buffer_t buf);
 
 static inline odp_buffer_t odp_hdr_to_buf(odp_buffer_hdr_t *hdr)
diff --git a/platform/linux-generic/include/odp_buffer_internal.h b/platform/linux-generic/include/odp_buffer_internal.h
index 076abe96e072..dadf285e796d 100644
--- a/platform/linux-generic/include/odp_buffer_internal.h
+++ b/platform/linux-generic/include/odp_buffer_internal.h
@@ -96,6 +96,9 @@ struct odp_buffer_hdr_t {
 	/* Event type. Maybe different than pool type (crypto compl event) */
 	int8_t    event_type;
 
+	/* Event subtype. Should be ODP_EVENT_NO_SUBTYPE except packets. */
+	int8_t    event_subtype;
+
 	/* Burst table */
 	struct odp_buffer_hdr_t *burst[BUFFER_BURST_SIZE];
 
diff --git a/platform/linux-generic/odp_crypto.c b/platform/linux-generic/odp_crypto.c
index 68fc5658b65b..0e2adad1f346 100644
--- a/platform/linux-generic/odp_crypto.c
+++ b/platform/linux-generic/odp_crypto.c
@@ -907,12 +907,13 @@ odp_crypto_operation(odp_crypto_op_param_t *param,
 	if (ODP_QUEUE_INVALID != session->p.compl_queue) {
 		odp_event_t completion_event;
 		odp_crypto_generic_op_result_t *op_result;
+		odp_buffer_t buf;
 
 		/* Linux generic will always use packet for completion event */
 		completion_event = odp_packet_to_event(param->out_pkt);
-		_odp_buffer_event_type_set(
-			odp_buffer_from_event(completion_event),
-			ODP_EVENT_CRYPTO_COMPL);
+		buf = odp_buffer_from_event(completion_event);
+		_odp_buffer_event_type_set(buf, ODP_EVENT_CRYPTO_COMPL);
+		_odp_buffer_event_subtype_set(buf, ODP_EVENT_NO_SUBTYPE);
 		/* Asynchronous, build result (no HW so no errors) and send it*/
 		op_result = get_op_result_from_event(completion_event);
 		op_result->magic = OP_RESULT_MAGIC;
@@ -1106,9 +1107,11 @@ odp_crypto_compl_result(odp_crypto_compl_t completion_event,
 void
 odp_crypto_compl_free(odp_crypto_compl_t completion_event)
 {
-	_odp_buffer_event_type_set(
-		odp_buffer_from_event((odp_event_t)completion_event),
-		ODP_EVENT_PACKET);
+	odp_buffer_t buf =
+		odp_buffer_from_event((odp_event_t)completion_event);
+
+	_odp_buffer_event_type_set(buf, ODP_EVENT_PACKET);
+	_odp_buffer_event_subtype_set(buf, ODP_EVENT_PACKET_BASIC);
 }
 
 void odp_crypto_session_param_init(odp_crypto_session_param_t *param)
diff --git a/platform/linux-generic/odp_event.c b/platform/linux-generic/odp_event.c
index d71f4464af48..23b410d8a60e 100644
--- a/platform/linux-generic/odp_event.c
+++ b/platform/linux-generic/odp_event.c
@@ -19,6 +19,21 @@ odp_event_type_t odp_event_type(odp_event_t event)
 	return _odp_buffer_event_type(odp_buffer_from_event(event));
 }
 
+odp_event_subtype_t odp_event_subtype(odp_event_t event)
+{
+	return _odp_buffer_event_subtype(odp_buffer_from_event(event));
+}
+
+odp_event_type_t odp_event_types(odp_event_t event,
+				 odp_event_subtype_t *subtype)
+{
+	odp_buffer_t buf = odp_buffer_from_event(event);
+
+	*subtype = _odp_buffer_event_subtype(buf);
+
+	return _odp_buffer_event_type(buf);
+}
+
 void odp_event_free(odp_event_t event)
 {
 	switch (odp_event_type(event)) {
diff --git a/platform/linux-generic/odp_packet.c b/platform/linux-generic/odp_packet.c
index eb66af2d3b9c..3789feca45f9 100644
--- a/platform/linux-generic/odp_packet.c
+++ b/platform/linux-generic/odp_packet.c
@@ -268,6 +268,7 @@ static inline void packet_init(odp_packet_hdr_t *pkt_hdr, uint32_t len)
 			     CONFIG_PACKET_TAILROOM;
 
 	pkt_hdr->input = ODP_PKTIO_INVALID;
+	pkt_hdr->buf_hdr.event_subtype = ODP_EVENT_PACKET_BASIC;
 }
 
 static inline void init_segments(odp_packet_hdr_t *pkt_hdr[], int num)
diff --git a/platform/linux-generic/odp_pool.c b/platform/linux-generic/odp_pool.c
index 9dba734130b4..23b80698d3b0 100644
--- a/platform/linux-generic/odp_pool.c
+++ b/platform/linux-generic/odp_pool.c
@@ -259,6 +259,7 @@ static void init_buffers(pool_t *pool)
 		buf_hdr->size = seg_size;
 		buf_hdr->type = type;
 		buf_hdr->event_type = type;
+		buf_hdr->event_subtype = ODP_EVENT_NO_SUBTYPE;
 		buf_hdr->pool_hdl = pool->pool_hdl;
 		buf_hdr->uarea_addr = uarea;
 		/* Show user requested size through API */
@@ -566,6 +567,16 @@ void _odp_buffer_event_type_set(odp_buffer_t buf, int ev)
 	buf_hdl_to_hdr(buf)->event_type = ev;
 }
 
+odp_event_subtype_t _odp_buffer_event_subtype(odp_buffer_t buf)
+{
+	return buf_hdl_to_hdr(buf)->event_subtype;
+}
+
+void _odp_buffer_event_subtype_set(odp_buffer_t buf, int ev)
+{
+	buf_hdl_to_hdr(buf)->event_subtype = ev;
+}
+
 odp_pool_t odp_pool_lookup(const char *name)
 {
 	uint32_t i;
