diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 6f8e1dd..2cdf8a0 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -192,6 +192,96 @@ extern "C" {
 /* Use final bit of flags to indicate a control mbuf */
 #define CTRL_MBUF_FLAG       (1ULL << 63) /**< Mbuf contains control data */
 
+/*
+ * 32 bits are divided into several fields to mark packet types. Note that
+ * each field is indexical.
+ * - Bit 3:0 is for L2 types.
+ * - Bit 7:4 is for L3 or outer L3 (for tunneling case) types.
+ * - Bit 11:8 is for L4 or outer L4 (for tunneling case) types.
+ * - Bit 15:12 is for tunnel types.
+ * - Bit 19:16 is for inner L2 types.
+ * - Bit 23:20 is for inner L3 types.
+ * - Bit 27:24 is for inner L4 types.
+ * - Bit 31:28 is reserved.
+ *
+ * To be compatible 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.
+ *
+ * Note that L3 types values are selected for checking IPV4/IPV6 header from
+ * performance point of view. Reading annotations of RTE_ETH_IS_IPV4_HDR and
+ * RTE_ETH_IS_IPV6_HDR is needed for any future changes of L3 type values.
+ */
+#define RTE_PTYPE_UNKNOWN                   0x00000000
+/* bit 3:0 for L2 types */
+#define RTE_PTYPE_L2_MAC                    0x00000001
+#define RTE_PTYPE_L2_MAC_TIMESYNC           0x00000002
+#define RTE_PTYPE_L2_ARP                    0x00000003
+#define RTE_PTYPE_L2_LLDP                   0x00000004
+#define RTE_PTYPE_L2_MASK                   0x0000000f
+/* bit 7:4 for L3 types */
+#define RTE_PTYPE_L3_IPV4                   0x00000010
+#define RTE_PTYPE_L3_IPV4_EXT               0x00000030
+#define RTE_PTYPE_L3_IPV6                   0x00000040
+#define RTE_PTYPE_L3_IPV4_EXT_UNKNOWN       0x00000090
+#define RTE_PTYPE_L3_IPV6_EXT               0x000000c0
+#define RTE_PTYPE_L3_IPV6_EXT_UNKNOWN       0x000000e0
+#define RTE_PTYPE_L3_MASK                   0x000000f0
+/* bit 11:8 for L4 types */
+#define RTE_PTYPE_L4_TCP                    0x00000100
+#define RTE_PTYPE_L4_UDP                    0x00000200
+#define RTE_PTYPE_L4_FRAG                   0x00000300
+#define RTE_PTYPE_L4_SCTP                   0x00000400
+#define RTE_PTYPE_L4_ICMP                   0x00000500
+#define RTE_PTYPE_L4_NONFRAG                0x00000600
+#define RTE_PTYPE_L4_MASK                   0x00000f00
+/* bit 15:12 for tunnel types */
+#define RTE_PTYPE_TUNNEL_IP                 0x00001000
+#define RTE_PTYPE_TUNNEL_GRE                0x00002000
+#define RTE_PTYPE_TUNNEL_VXLAN              0x00003000
+#define RTE_PTYPE_TUNNEL_NVGRE              0x00004000
+#define RTE_PTYPE_TUNNEL_GENEVE             0x00005000
+#define RTE_PTYPE_TUNNEL_GRENAT             0x00006000
+#define RTE_PTYPE_TUNNEL_MASK               0x0000f000
+/* bit 19:16 for inner L2 types */
+#define RTE_PTYPE_INNER_L2_MAC              0x00010000
+#define RTE_PTYPE_INNER_L2_MAC_VLAN         0x00020000
+#define RTE_PTYPE_INNER_L2_MASK             0x000f0000
+/* bit 23:20 for inner L3 types */
+#define RTE_PTYPE_INNER_L3_IPV4             0x00100000
+#define RTE_PTYPE_INNER_L3_IPV4_EXT         0x00200000
+#define RTE_PTYPE_INNER_L3_IPV6             0x00300000
+#define RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN 0x00400000
+#define RTE_PTYPE_INNER_L3_IPV6_EXT         0x00500000
+#define RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN 0x00600000
+#define RTE_PTYPE_INNER_INNER_L3_MASK       0x00f00000
+/* bit 27:24 for inner L4 types */
+#define RTE_PTYPE_INNER_L4_TCP              0x01000000
+#define RTE_PTYPE_INNER_L4_UDP              0x02000000
+#define RTE_PTYPE_INNER_L4_FRAG             0x03000000
+#define RTE_PTYPE_INNER_L4_SCTP             0x04000000
+#define RTE_PTYPE_INNER_L4_ICMP             0x05000000
+#define RTE_PTYPE_INNER_L4_NONFRAG          0x06000000
+#define RTE_PTYPE_INNER_L4_MASK             0x0f000000
+/* bit 31:28 reserved */
+
+/**
+ * Check if the (outer) L3 header is IPv4. To avoid comparing IPv4 types one by
+ * one, bit 4 is selected to be used for IPv4 only. Then checking bit 4 can
+ * determin if it is an IPV4 packet.
+ */
+#define  RTE_ETH_IS_IPV4_HDR(ptype) ((ptype) & RTE_PTYPE_L3_IPV4)
+
+/**
+ * Check if the (outer) L3 header is IPv4. To avoid comparing IPv4 types one by
+ * one, bit 6 is selected to be used for IPv4 only. Then checking bit 6 can
+ * determin if it is an IPV4 packet.
+ */
+#define  RTE_ETH_IS_IPV6_HDR(ptype) ((ptype) & RTE_PTYPE_L3_IPV6)
+
+/* 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
  *
