diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 16059c6..94eb38f 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -165,6 +165,74 @@ extern "C" {
 /* Use final bit of flags to indicate a control mbuf */
 #define CTRL_MBUF_FLAG       (1ULL << 63) /**< Mbuf contains control data */
 
+/*
+ * Sixteen bits are divided into several fields to mark packet types. Note that
+ * each field is indexical.
+ * - Bit 3:0 is for tunnel types.
+ * - Bit 7:4 is for L3 or outer L3 (for tunneling case) types.
+ * - Bit 10:8 is for L4 types. It can also be used for inner L4 types for
+ *   tunneling packets.
+ * - Bit 13:11 is for inner L3 types.
+ * - Bit 15:14 is reserved.
+ *
+ * To be compitable with Vector PMD, RTE_PTYPE_L3_IPV4, RTE_PTYPE_L3_IPV4_EXT,
+ * RTE_PTYPE_L3_IPV6, RTE_PTYPE_L3_IPV6_EXT, RTE_PTYPE_L4_TCP, RTE_PTYPE_L4_UDP
+ * and RTE_PTYPE_L4_SCTP should be kept as below in a contiguous 7 bits.
+ */
+#define RTE_PTYPE_UNKNOWN                   0x0000 /* 0b0000000000000000 */
+/* bit 3:0 for tunnel types */
+#define RTE_PTYPE_TUNNEL_IP                 0x0001 /* 0b0000000000000001 */
+#define RTE_PTYPE_TUNNEL_TCP                0x0002 /* 0b0000000000000010 */
+#define RTE_PTYPE_TUNNEL_UDP                0x0003 /* 0b0000000000000011 */
+#define RTE_PTYPE_TUNNEL_GRE                0x0004 /* 0b0000000000000100 */
+#define RTE_PTYPE_TUNNEL_VXLAN              0x0005 /* 0b0000000000000101 */
+#define RTE_PTYPE_TUNNEL_NVGRE              0x0006 /* 0b0000000000000110 */
+#define RTE_PTYPE_TUNNEL_GENEVE             0x0007 /* 0b0000000000000111 */
+#define RTE_PTYPE_TUNNEL_GRENAT             0x0008 /* 0b0000000000001000 */
+#define RTE_PTYPE_TUNNEL_GRENAT_MAC         0x0009 /* 0b0000000000001001 */
+#define RTE_PTYPE_TUNNEL_GRENAT_MACVLAN     0x000a /* 0b0000000000001010 */
+#define RTE_PTYPE_TUNNEL_MASK               0x000f /* 0b0000000000001111 */
+/* bit 7:4 for L3 types */
+#define RTE_PTYPE_L3_IPV4                   0x0010 /* 0b0000000000010000 */
+#define RTE_PTYPE_L3_IPV4_EXT               0x0030 /* 0b0000000000110000 */
+#define RTE_PTYPE_L3_IPV6                   0x0040 /* 0b0000000001000000 */
+#define RTE_PTYPE_L3_IPV6_EXT               0x00c0 /* 0b0000000011000000 */
+#define RTE_PTYPE_L3_IPV4_EXT_UNKNOWN       0x00d0 /* 0b0000000011010000 */
+#define RTE_PTYPE_L3_IPV6_EXT_UNKNOWN       0x00e0 /* 0b0000000011100000 */
+#define RTE_PTYPE_L3_MASK                   0x00f0 /* 0b0000000011110000 */
+/* bit 10:8 for L4 types */
+#define RTE_PTYPE_L4_TCP                    0x0100 /* 0b0000000100000000 */
+#define RTE_PTYPE_L4_UDP                    0x0200 /* 0b0000001000000000 */
+#define RTE_PTYPE_L4_FRAG                   0x0300 /* 0b0000001100000000 */
+#define RTE_PTYPE_L4_SCTP                   0x0400 /* 0b0000010000000000 */
+#define RTE_PTYPE_L4_ICMP                   0x0500 /* 0b0000010100000000 */
+#define RTE_PTYPE_L4_NONFRAG                0x0600 /* 0b0000011000000000 */
+#define RTE_PTYPE_L4_MASK                   0x0700 /* 0b0000011100000000 */
+/* bit 13:11 for inner L3 types */
+#define RTE_PTYPE_INNER_L3_IPV4             0x0800 /* 0b0000100000000000 */
+#define RTE_PTYPE_INNER_L3_IPV4_EXT         0x1000 /* 0b0001000000000000 */
+#define RTE_PTYPE_INNER_L3_IPV6             0x1800 /* 0b0001100000000000 */
+#define RTE_PTYPE_INNER_L3_IPV6_EXT         0x2000 /* 0b0010000000000000 */
+#define RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN 0x2800 /* 0b0010100000000000 */
+#define RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN 0x3000 /* 0b0011000000000000 */
+#define RTE_PTYPE_INNER_L3_MASK             0x3800 /* 0b0011100000000000 */
+/* bit 15:14 reserved */
+
+/* Check if the (outer) L3 header is IPv4 */
+#define  RTE_ETH_IS_IPV4_HDR(ptype) \
+	(((ptype) & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4 || \
+	((ptype) & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4_EXT || \
+	((ptype) & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV4_EXT_UNKNOWN)
+
+/* Check if the (outer) L3 header is IPv6 */
+#define  RTE_ETH_IS_IPV6_HDR(ptype) \
+	(((ptype) & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV6 || \
+	((ptype) & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV6_EXT || \
+	((ptype) & RTE_PTYPE_L3_MASK) == RTE_PTYPE_L3_IPV6_EXT_UNKNOWN)
+
+/* Check if it is a tunneling packet */
+#define RTE_ETH_IS_TUNNEL_PKT(ptype) ((ptype) & RTE_PTYPE_TUNNEL_MASK)
+
 /**
  * Get the name of a RX offload flag
  *
