+#define LIO_DATA(i) (0x11111111 + (i))
+
+/* used for NIC operations */
+#define LIO_OPCODE 1
+
+/* Subcodes are used by host driver/apps to identify the sub-operation
+ * for the core. They only need to by unique for a given subsystem.
+ */
+#define LIO_OPCODE_SUBCODE(op, sub) \
+ ((((op) & 0x0f) << 8) | ((sub) & 0x7f))
+
+/** LIO_OPCODE subcodes */
+/* This subcode is sent by core PCI driver to indicate cores are ready. */
+#define LIO_OPCODE_NW_DATA 0x02 /* network packet data */
+#define LIO_OPCODE_CMD 0x03
+#define LIO_OPCODE_INFO 0x04
+#define LIO_OPCODE_PORT_STATS 0x05
+#define LIO_OPCODE_IF_CFG 0x09
+
+#define LIO_MIN_RX_BUF_SIZE 64
+#define LIO_MAX_RX_PKTLEN (64 * 1024)
+
+/* NIC Command types */
+#define LIO_CMD_CHANGE_MTU 0x1
+#define LIO_CMD_CHANGE_DEVFLAGS 0x3
+#define LIO_CMD_RX_CTL 0x4
+#define LIO_CMD_CLEAR_STATS 0x6
+#define LIO_CMD_SET_RSS 0xD
+#define LIO_CMD_TNL_RX_CSUM_CTL 0x10
+#define LIO_CMD_TNL_TX_CSUM_CTL 0x11
+#define LIO_CMD_ADD_VLAN_FILTER 0x17
+#define LIO_CMD_DEL_VLAN_FILTER 0x18
+#define LIO_CMD_VXLAN_PORT_CONFIG 0x19
+
+#define LIO_CMD_VXLAN_PORT_ADD 0x0
+#define LIO_CMD_VXLAN_PORT_DEL 0x1
+#define LIO_CMD_RXCSUM_ENABLE 0x0
+#define LIO_CMD_TXCSUM_ENABLE 0x0
+
+/* RX(packets coming from wire) Checksum verification flags */
+/* TCP/UDP csum */
+#define LIO_L4_CSUM_VERIFIED 0x1
+#define LIO_IP_CSUM_VERIFIED 0x2
+
+/* RSS */
+#define LIO_RSS_PARAM_DISABLE_RSS 0x10
+#define LIO_RSS_PARAM_HASH_KEY_UNCHANGED 0x08
+#define LIO_RSS_PARAM_ITABLE_UNCHANGED 0x04
+#define LIO_RSS_PARAM_HASH_INFO_UNCHANGED 0x02
+
+#define LIO_RSS_HASH_IPV4 0x100
+#define LIO_RSS_HASH_TCP_IPV4 0x200
+#define LIO_RSS_HASH_IPV6 0x400
+#define LIO_RSS_HASH_TCP_IPV6 0x1000
+#define LIO_RSS_HASH_IPV6_EX 0x800
+#define LIO_RSS_HASH_TCP_IPV6_EX 0x2000
+
+#define LIO_RSS_OFFLOAD_ALL ( \
+ LIO_RSS_HASH_IPV4 | \
+ LIO_RSS_HASH_TCP_IPV4 | \
+ LIO_RSS_HASH_IPV6 | \
+ LIO_RSS_HASH_TCP_IPV6 | \
+ LIO_RSS_HASH_IPV6_EX | \
+ LIO_RSS_HASH_TCP_IPV6_EX)
+
+#define LIO_RSS_MAX_TABLE_SZ 128
+#define LIO_RSS_MAX_KEY_SZ 40
+#define LIO_RSS_PARAM_SIZE 16
+
+/* Interface flags communicated between host driver and core app. */
+enum lio_ifflags {
+ LIO_IFFLAG_PROMISC = 0x01,
+ LIO_IFFLAG_ALLMULTI = 0x02,
+ LIO_IFFLAG_UNICAST = 0x10
+};