diff --git a/lib/librte_ether/rte_eth_ctrl.h b/lib/librte_ether/rte_eth_ctrl.h
index 34ab278..df1ce4b 100644
--- a/lib/librte_ether/rte_eth_ctrl.h
+++ b/lib/librte_ether/rte_eth_ctrl.h
@@ -71,6 +71,165 @@ enum rte_filter_op {
 	RTE_ETH_FILTER_OP_MAX,
 };
 
+/**
+ * Define all structures for Flow Director Filter type corresponding with specific operations.
+ */
+
+/**
+ * flow type
+ */
+enum rte_eth_flow_type {
+	RTE_ETH_FLOW_TYPE_NONE = 0x0,
+	RTE_ETH_FLOW_TYPE_UDPV4,
+	RTE_ETH_FLOW_TYPE_TCPV4,
+	RTE_ETH_FLOW_TYPE_SCTPV4,
+	RTE_ETH_FLOW_TYPE_IPV4_OTHER,
+	RTE_ETH_FLOW_TYPE_UDPV6,
+	RTE_ETH_FLOW_TYPE_TCPV6,
+	RTE_ETH_FLOW_TYPE_SCTPV6,
+	RTE_ETH_FLOW_TYPE_IPV6_OTHER,
+};
+
+/**
+ * A structure used to define the input for IPV4 UDP flow
+ */
+struct rte_eth_udpv4_flow {
+	uint32_t src_ip;      /**< IPv4 source address to match. */
+	uint32_t dst_ip;      /**< IPv4 destination address to match. */
+	uint16_t src_port;    /**< UDP Source port to match. */
+	uint16_t dst_port;    /**< UDP Destination port to match. */
+};
+
+/**
+ * A structure used to define the input for IPV4 TCP flow
+ */
+struct rte_eth_tcpv4_flow {
+	uint32_t src_ip;      /**< IPv4 source address to match. */
+	uint32_t dst_ip;      /**< IPv4 destination address to match. */
+	uint16_t src_port;    /**< TCP Source port to match. */
+	uint16_t dst_port;    /**< TCP Destination port to match. */
+};
+
+/**
+ * A structure used to define the input for IPV4 SCTP flow
+ */
+struct rte_eth_sctpv4_flow {
+	uint32_t src_ip;          /**< IPv4 source address to match. */
+	uint32_t dst_ip;          /**< IPv4 destination address to match. */
+	uint32_t verify_tag;      /**< verify tag to match */
+};
+
+/**
+ * A structure used to define the input for IPV4 flow
+ */
+struct rte_eth_ipv4_flow {
+	uint32_t src_ip;      /**< IPv4 source address to match. */
+	uint32_t dst_ip;      /**< IPv4 destination address to match. */
+};
+
+/**
+ * A structure used to define the input for IPV6 UDP flow
+ */
+struct rte_eth_udpv6_flow {
+	uint32_t src_ip[4];      /**< IPv6 source address to match. */
+	uint32_t dst_ip[4];      /**< IPv6 destination address to match. */
+	uint16_t src_port;       /**< UDP Source port to match. */
+	uint16_t dst_port;       /**< UDP Destination port to match. */
+};
+
+/**
+ * A structure used to define the input for IPV6 TCP flow
+ */
+struct rte_eth_tcpv6_flow {
+	uint32_t src_ip[4];      /**< IPv6 source address to match. */
+	uint32_t dst_ip[4];      /**< IPv6 destination address to match. */
+	uint16_t src_port;       /**< TCP Source port to match. */
+	uint16_t dst_port;       /**< TCP Destination port to match. */
+};
+
+/**
+ * A structure used to define the input for IPV6 SCTP flow
+ */
+struct rte_eth_sctpv6_flow {
+	uint32_t src_ip[4];      /**< IPv6 source address to match. */
+	uint32_t dst_ip[4];      /**< IPv6 destination address to match. */
+	uint32_t verify_tag;     /**< verify tag to match */
+};
+
+/**
+ * A structure used to define the input for IPV6 flow
+ */
+struct rte_eth_ipv6_flow {
+	uint32_t src_ip[4];      /**< IPv6 source address to match. */
+	uint32_t dst_ip[4];      /**< IPv6 destination address to match. */
+};
+
+/**
+ * A union constains the inputs for all types of flow
+ */
+union rte_eth_fdir_flow {
+	struct rte_eth_udpv4_flow  udp4_flow;
+	struct rte_eth_tcpv4_flow  tcp4_flow;
+	struct rte_eth_sctpv4_flow sctp4_flow;
+	struct rte_eth_ipv4_flow   ip4_flow;
+	struct rte_eth_udpv6_flow  udp6_flow;
+	struct rte_eth_tcpv6_flow  tcp6_flow;
+	struct rte_eth_sctpv6_flow sctp6_flow;
+	struct rte_eth_ipv6_flow   ip6_flow;
+};
+
+#define RTE_ETH_FDIR_MAX_FLEXWORD_LEN  8
+/**
+ * A structure used to contain extend input of flow
+ */
+struct rte_eth_fdir_flow_ext {
+	uint16_t vlan_tci;
+	uint8_t num_flexwords;         /**< number of flexwords */
+	uint16_t flexwords[RTE_ETH_FDIR_MAX_FLEXWORD_LEN];
+	uint16_t dest_id;              /**< destination vsi or pool id*/
+};
+
+/**
+ * A structure used to define the input for an flow director filter entry
+ */
+struct rte_eth_fdir_input {
+	enum rte_eth_flow_type flow_type;      /**< type of flow */
+	union rte_eth_fdir_flow flow;          /**< specific flow structure */
+	struct rte_eth_fdir_flow_ext flow_ext; /**< specific flow info */
+};
+
+/**
+ * Flow director report status
+ */
+enum rte_eth_fdir_status {
+	RTE_ETH_FDIR_NO_REPORT_STATUS = 0, /**< no report FDIR. */
+	RTE_ETH_FDIR_REPORT_FD_ID,         /**< only report FD ID. */
+	RTE_ETH_FDIR_REPORT_FD_ID_FLEX_4,  /**< report FD ID and 4 flex bytes. */
+	RTE_ETH_FDIR_REPORT_FLEX_8,        /**< report 8 flex bytes. */
+};
+
+/**
+ * A structure used to define an action when match FDIR packet filter.
+ */
+struct rte_eth_fdir_action {
+	uint16_t rx_queue;        /**< queue assigned to if fdir match. */
+	uint16_t cnt_idx;         /**< statistic count index */
+	uint8_t  drop;            /**< accept or reject */
+	uint8_t  flex_off;        /**< offset used define words to report */
+	enum rte_eth_fdir_status report_status;  /**< status report option */
+};
+
+/**
+ * A structure used to define the flow director filter entry by filter_ctl API
+ * to support RTE_ETH_FILTER_FDIR with RTE_ETH_FILTER_OP_ADD and
+ * RTE_ETH_FILTER_OP_DELETE operations.
+ */
+struct rte_eth_fdir_filter {
+	uint16_t soft_id;                   /**< id */
+	struct rte_eth_fdir_input input;    /**< input set */
+	struct rte_eth_fdir_action action;  /**< action taken when match */
+};
+
 #ifdef __cplusplus
 }
 #endif
