diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index ee50e45..59a45c1 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -9983,7 +9983,7 @@ cmd_2tuple_filter_parsed(void *parsed_result,
 			" when protocol is TCP.\n");
 		return;
 	}
-	if (res->tcp_flags_value > TCP_FLAG_ALL) {
+	if (res->tcp_flags_value > RTE_NTUPLE_TCP_FLAGS_MASK) {
 		printf("invalid TCP flags.\n");
 		return;
 	}
@@ -10141,7 +10141,7 @@ cmd_5tuple_filter_parsed(void *parsed_result,
 			" when protocol is TCP.\n");
 		return;
 	}
-	if (res->tcp_flags_value > TCP_FLAG_ALL) {
+	if (res->tcp_flags_value > RTE_NTUPLE_TCP_FLAGS_MASK) {
 		printf("invalid TCP flags.\n");
 		return;
 	}
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index b897e8a..c2fe19a 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3702,7 +3702,7 @@ ntuple_filter_to_2tuple(struct rte_eth_ntuple_filter *filter,
 		return -EINVAL;
 	if (filter->priority > E1000_2TUPLE_MAX_PRI)
 		return -EINVAL;  /* filter index is out of range. */
-	if (filter->tcp_flags > TCP_FLAG_ALL)
+	if (filter->tcp_flags > RTE_NTUPLE_TCP_FLAGS_MASK)
 		return -EINVAL;  /* flags is invalid. */
 
 	switch (filter->dst_port_mask) {
@@ -3782,7 +3782,7 @@ igb_inject_2uple_filter(struct rte_eth_dev *dev,
 		ttqf &= ~E1000_TTQF_MASK_ENABLE;
 
 	/* tcp flags bits setting. */
-	if (filter->filter_info.tcp_flags & TCP_FLAG_ALL) {
+	if (filter->filter_info.tcp_flags & RTE_NTUPLE_TCP_FLAGS_MASK) {
 		if (filter->filter_info.tcp_flags & TCP_URG_FLAG)
 			imir_ext |= E1000_IMIREXT_CTRL_URG;
 		if (filter->filter_info.tcp_flags & TCP_ACK_FLAG)
@@ -4188,7 +4188,7 @@ ntuple_filter_to_5tuple_82576(struct rte_eth_ntuple_filter *filter,
 		return -EINVAL;
 	if (filter->priority > E1000_2TUPLE_MAX_PRI)
 		return -EINVAL;  /* filter index is out of range. */
-	if (filter->tcp_flags > TCP_FLAG_ALL)
+	if (filter->tcp_flags > RTE_NTUPLE_TCP_FLAGS_MASK)
 		return -EINVAL;  /* flags is invalid. */
 
 	switch (filter->dst_ip_mask) {
@@ -4318,7 +4318,7 @@ igb_inject_5tuple_filter_82576(struct rte_eth_dev *dev,
 	imir |= filter->filter_info.priority << E1000_IMIR_PRIORITY_SHIFT;
 
 	/* tcp flags bits setting. */
-	if (filter->filter_info.tcp_flags & TCP_FLAG_ALL) {
+	if (filter->filter_info.tcp_flags & RTE_NTUPLE_TCP_FLAGS_MASK) {
 		if (filter->filter_info.tcp_flags & TCP_URG_FLAG)
 			imir_ext |= E1000_IMIREXT_CTRL_URG;
 		if (filter->filter_info.tcp_flags & TCP_ACK_FLAG)
diff --git a/lib/librte_ethdev/rte_eth_ctrl.h b/lib/librte_ethdev/rte_eth_ctrl.h
index 5ea8ae2..f21e84b 100644
--- a/lib/librte_ethdev/rte_eth_ctrl.h
+++ b/lib/librte_ethdev/rte_eth_ctrl.h
@@ -184,13 +184,7 @@ struct rte_eth_syn_filter {
 		RTE_NTUPLE_FLAGS_DST_PORT | \
 		RTE_NTUPLE_FLAGS_PROTO)
 
-#define TCP_URG_FLAG 0x20
-#define TCP_ACK_FLAG 0x10
-#define TCP_PSH_FLAG 0x08
-#define TCP_RST_FLAG 0x04
-#define TCP_SYN_FLAG 0x02
-#define TCP_FIN_FLAG 0x01
-#define TCP_FLAG_ALL 0x3F
+#define RTE_NTUPLE_TCP_FLAGS_MASK 0x3F /**< TCP flags filter can match. */
 
 /**
  * A structure used to define the ntuple filter entry
diff --git a/lib/librte_net/rte_tcp.h b/lib/librte_net/rte_tcp.h
index 91f5898..2e89b5e 100644
--- a/lib/librte_net/rte_tcp.h
+++ b/lib/librte_net/rte_tcp.h
@@ -2,6 +2,7 @@
  * Copyright(c) 1982, 1986, 1990, 1993
  *      The Regents of the University of California.
  * Copyright(c) 2010-2014 Intel Corporation.
+ * Copyright(c) 2019 SmartShare Systems.
  * All rights reserved.
  */
 
@@ -35,6 +36,18 @@ struct tcp_hdr {
 	uint16_t tcp_urp;   /**< TCP urgent pointer, if any. */
 } __attribute__((__packed__));
 
+/**
+ * TCP Flags
+ */
+#define TCP_CWR_FLAG 0x80 /**< Congestion Window Reduced */
+#define TCP_ECE_FLAG 0x40 /**< ECN-Echo */
+#define TCP_URG_FLAG 0x20 /**< Urgent Pointer field significant */
+#define TCP_ACK_FLAG 0x10 /**< Acknowledgment field significant */
+#define TCP_PSH_FLAG 0x08 /**< Push Function */
+#define TCP_RST_FLAG 0x04 /**< Reset the connection */
+#define TCP_SYN_FLAG 0x02 /**< Synchronize sequence numbers */
+#define TCP_FIN_FLAG 0x01 /**< No more data from sender */
+
 #ifdef __cplusplus
 }
 #endif
