diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index e7e85cf304..bf3fdd8609 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -990,9 +990,6 @@ static void cmd_help_long_parsed(void *parsed_result,
 			" priority (prio_value) queue (queue_id)\n"
 			"    Add/Del a 5tuple filter.\n\n"
 
-			"syn_filter (port_id) (add|del) priority (high|low) queue (queue_id)"
-			"    Add/Del syn filter.\n\n"
-
 			"flow_director_filter (port_id) mode IP (add|del|update)"
 			" flow (ipv4-other|ipv4-frag|ipv6-other|ipv6-frag)"
 			" src (src_ip_address) dst (dst_ip_address)"
@@ -9982,97 +9979,6 @@ cmdline_parse_inst_t cmd_dump_one = {
 	},
 };
 
-/* *** Add/Del syn filter *** */
-struct cmd_syn_filter_result {
-	cmdline_fixed_string_t filter;
-	portid_t port_id;
-	cmdline_fixed_string_t ops;
-	cmdline_fixed_string_t priority;
-	cmdline_fixed_string_t high;
-	cmdline_fixed_string_t queue;
-	uint16_t queue_id;
-};
-
-static void
-cmd_syn_filter_parsed(void *parsed_result,
-			__rte_unused struct cmdline *cl,
-			__rte_unused void *data)
-{
-	struct cmd_syn_filter_result *res = parsed_result;
-	struct rte_eth_syn_filter syn_filter;
-	int ret = 0;
-
-	ret = rte_eth_dev_filter_supported(res->port_id,
-					RTE_ETH_FILTER_SYN);
-	if (ret < 0) {
-		printf("syn filter is not supported on port %u.\n",
-				res->port_id);
-		return;
-	}
-
-	memset(&syn_filter, 0, sizeof(syn_filter));
-
-	if (!strcmp(res->ops, "add")) {
-		if (!strcmp(res->high, "high"))
-			syn_filter.hig_pri = 1;
-		else
-			syn_filter.hig_pri = 0;
-
-		syn_filter.queue = res->queue_id;
-		ret = rte_eth_dev_filter_ctrl(res->port_id,
-						RTE_ETH_FILTER_SYN,
-						RTE_ETH_FILTER_ADD,
-						&syn_filter);
-	} else
-		ret = rte_eth_dev_filter_ctrl(res->port_id,
-						RTE_ETH_FILTER_SYN,
-						RTE_ETH_FILTER_DELETE,
-						&syn_filter);
-
-	if (ret < 0)
-		printf("syn filter programming error: (%s)\n",
-				strerror(-ret));
-}
-
-cmdline_parse_token_string_t cmd_syn_filter_filter =
-	TOKEN_STRING_INITIALIZER(struct cmd_syn_filter_result,
-	filter, "syn_filter");
-cmdline_parse_token_num_t cmd_syn_filter_port_id =
-	TOKEN_NUM_INITIALIZER(struct cmd_syn_filter_result,
-	port_id, UINT16);
-cmdline_parse_token_string_t cmd_syn_filter_ops =
-	TOKEN_STRING_INITIALIZER(struct cmd_syn_filter_result,
-	ops, "add#del");
-cmdline_parse_token_string_t cmd_syn_filter_priority =
-	TOKEN_STRING_INITIALIZER(struct cmd_syn_filter_result,
-				priority, "priority");
-cmdline_parse_token_string_t cmd_syn_filter_high =
-	TOKEN_STRING_INITIALIZER(struct cmd_syn_filter_result,
-				high, "high#low");
-cmdline_parse_token_string_t cmd_syn_filter_queue =
-	TOKEN_STRING_INITIALIZER(struct cmd_syn_filter_result,
-				queue, "queue");
-cmdline_parse_token_num_t cmd_syn_filter_queue_id =
-	TOKEN_NUM_INITIALIZER(struct cmd_syn_filter_result,
-				queue_id, UINT16);
-
-cmdline_parse_inst_t cmd_syn_filter = {
-	.f = cmd_syn_filter_parsed,
-	.data = NULL,
-	.help_str = "syn_filter <port_id> add|del priority high|low queue "
-		"<queue_id>: Add/Delete syn filter",
-	.tokens = {
-		(void *)&cmd_syn_filter_filter,
-		(void *)&cmd_syn_filter_port_id,
-		(void *)&cmd_syn_filter_ops,
-		(void *)&cmd_syn_filter_priority,
-		(void *)&cmd_syn_filter_high,
-		(void *)&cmd_syn_filter_queue,
-		(void *)&cmd_syn_filter_queue_id,
-		NULL,
-	},
-};
-
 /* *** queue region set *** */
 struct cmd_queue_region_result {
 	cmdline_fixed_string_t set;
@@ -19636,7 +19542,6 @@ cmdline_parse_ctx_t main_ctx[] = {
 	(cmdline_parse_inst_t *)&cmd_config_rss_hash_key,
 	(cmdline_parse_inst_t *)&cmd_dump,
 	(cmdline_parse_inst_t *)&cmd_dump_one,
-	(cmdline_parse_inst_t *)&cmd_syn_filter,
 	(cmdline_parse_inst_t *)&cmd_2tuple_filter,
 	(cmdline_parse_inst_t *)&cmd_5tuple_filter,
 	(cmdline_parse_inst_t *)&cmd_add_del_ip_flow_director,
diff --git a/doc/guides/rel_notes/deprecation.rst b/doc/guides/rel_notes/deprecation.rst
index 4ed78809c0..8a7839152e 100644
--- a/doc/guides/rel_notes/deprecation.rst
+++ b/doc/guides/rel_notes/deprecation.rst
@@ -108,7 +108,7 @@ Deprecation Notices
 
 * ethdev: the legacy filter API, including
   ``rte_eth_dev_filter_supported()``, ``rte_eth_dev_filter_ctrl()`` as well
-  as filter types SYN, NTUPLE, TUNNEL, FDIR,
+  as filter types NTUPLE, TUNNEL, FDIR,
   HASH and L2_TUNNEL, is superseded by the generic flow API (rte_flow) in
   PMDs that implement the latter.
   The legacy API will be removed in DPDK 20.11.
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index db67bcb7f9..7e2c77d356 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -186,11 +186,6 @@ static int eth_igb_rss_reta_query(struct rte_eth_dev *dev,
 				  struct rte_eth_rss_reta_entry64 *reta_conf,
 				  uint16_t reta_size);
 
-static int eth_igb_syn_filter_get(struct rte_eth_dev *dev,
-			struct rte_eth_syn_filter *filter);
-static int eth_igb_syn_filter_handle(struct rte_eth_dev *dev,
-			enum rte_filter_op filter_op,
-			void *arg);
 static int igb_add_2tuple_filter(struct rte_eth_dev *dev,
 			struct rte_eth_ntuple_filter *ntuple_filter);
 static int igb_remove_2tuple_filter(struct rte_eth_dev *dev,
@@ -3670,68 +3665,6 @@ eth_igb_syn_filter_set(struct rte_eth_dev *dev,
 	return 0;
 }
 
-static int
-eth_igb_syn_filter_get(struct rte_eth_dev *dev,
-			struct rte_eth_syn_filter *filter)
-{
-	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint32_t synqf, rfctl;
-
-	synqf = E1000_READ_REG(hw, E1000_SYNQF(0));
-	if (synqf & E1000_SYN_FILTER_ENABLE) {
-		rfctl = E1000_READ_REG(hw, E1000_RFCTL);
-		filter->hig_pri = (rfctl & E1000_RFCTL_SYNQFP) ? 1 : 0;
-		filter->queue = (uint8_t)((synqf & E1000_SYN_FILTER_QUEUE) >>
-				E1000_SYN_FILTER_QUEUE_SHIFT);
-		return 0;
-	}
-
-	return -ENOENT;
-}
-
-static int
-eth_igb_syn_filter_handle(struct rte_eth_dev *dev,
-			enum rte_filter_op filter_op,
-			void *arg)
-{
-	struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	int ret;
-
-	MAC_TYPE_FILTER_SUP(hw->mac.type);
-
-	if (filter_op == RTE_ETH_FILTER_NOP)
-		return 0;
-
-	if (arg == NULL) {
-		PMD_DRV_LOG(ERR, "arg shouldn't be NULL for operation %u",
-			    filter_op);
-		return -EINVAL;
-	}
-
-	switch (filter_op) {
-	case RTE_ETH_FILTER_ADD:
-		ret = eth_igb_syn_filter_set(dev,
-				(struct rte_eth_syn_filter *)arg,
-				TRUE);
-		break;
-	case RTE_ETH_FILTER_DELETE:
-		ret = eth_igb_syn_filter_set(dev,
-				(struct rte_eth_syn_filter *)arg,
-				FALSE);
-		break;
-	case RTE_ETH_FILTER_GET:
-		ret = eth_igb_syn_filter_get(dev,
-				(struct rte_eth_syn_filter *)arg);
-		break;
-	default:
-		PMD_DRV_LOG(ERR, "unsupported operation %u", filter_op);
-		ret = -EINVAL;
-		break;
-	}
-
-	return ret;
-}
-
 /* translate elements in struct rte_eth_ntuple_filter to struct e1000_2tuple_filter_info*/
 static inline int
 ntuple_filter_to_2tuple(struct rte_eth_ntuple_filter *filter,
@@ -4748,9 +4681,6 @@ eth_igb_filter_ctrl(struct rte_eth_dev *dev,
 	case RTE_ETH_FILTER_NTUPLE:
 		ret = igb_ntuple_filter_handle(dev, filter_op, arg);
 		break;
-	case RTE_ETH_FILTER_SYN:
-		ret = eth_igb_syn_filter_handle(dev, filter_op, arg);
-		break;
 	case RTE_ETH_FILTER_GENERIC:
 		if (filter_op != RTE_ETH_FILTER_GET)
 			return -EINVAL;
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 28a088a71b..f75725b433 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -300,11 +300,6 @@ static int ixgbevf_add_mac_addr(struct rte_eth_dev *dev,
 static void ixgbevf_remove_mac_addr(struct rte_eth_dev *dev, uint32_t index);
 static int ixgbevf_set_default_mac_addr(struct rte_eth_dev *dev,
 					     struct rte_ether_addr *mac_addr);
-static int ixgbe_syn_filter_get(struct rte_eth_dev *dev,
-			struct rte_eth_syn_filter *filter);
-static int ixgbe_syn_filter_handle(struct rte_eth_dev *dev,
-			enum rte_filter_op filter_op,
-			void *arg);
 static int ixgbe_add_5tuple_filter(struct rte_eth_dev *dev,
 			struct ixgbe_5tuple_filter *filter);
 static void ixgbe_remove_5tuple_filter(struct rte_eth_dev *dev,
@@ -6404,64 +6399,6 @@ ixgbe_syn_filter_set(struct rte_eth_dev *dev,
 	return 0;
 }
 
-static int
-ixgbe_syn_filter_get(struct rte_eth_dev *dev,
-			struct rte_eth_syn_filter *filter)
-{
-	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint32_t synqf = IXGBE_READ_REG(hw, IXGBE_SYNQF);
-
-	if (synqf & IXGBE_SYN_FILTER_ENABLE) {
-		filter->hig_pri = (synqf & IXGBE_SYN_FILTER_SYNQFP) ? 1 : 0;
-		filter->queue = (uint16_t)((synqf & IXGBE_SYN_FILTER_QUEUE) >> 1);
-		return 0;
-	}
-	return -ENOENT;
-}
-
-static int
-ixgbe_syn_filter_handle(struct rte_eth_dev *dev,
-			enum rte_filter_op filter_op,
-			void *arg)
-{
-	struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	int ret;
-
-	MAC_TYPE_FILTER_SUP(hw->mac.type);
-
-	if (filter_op == RTE_ETH_FILTER_NOP)
-		return 0;
-
-	if (arg == NULL) {
-		PMD_DRV_LOG(ERR, "arg shouldn't be NULL for operation %u",
-			    filter_op);
-		return -EINVAL;
-	}
-
-	switch (filter_op) {
-	case RTE_ETH_FILTER_ADD:
-		ret = ixgbe_syn_filter_set(dev,
-				(struct rte_eth_syn_filter *)arg,
-				TRUE);
-		break;
-	case RTE_ETH_FILTER_DELETE:
-		ret = ixgbe_syn_filter_set(dev,
-				(struct rte_eth_syn_filter *)arg,
-				FALSE);
-		break;
-	case RTE_ETH_FILTER_GET:
-		ret = ixgbe_syn_filter_get(dev,
-				(struct rte_eth_syn_filter *)arg);
-		break;
-	default:
-		PMD_DRV_LOG(ERR, "unsupported operation %u", filter_op);
-		ret = -EINVAL;
-		break;
-	}
-
-	return ret;
-}
-
 
 static inline enum ixgbe_5tuple_protocol
 convert_protocol_type(uint8_t protocol_value)
@@ -6974,9 +6911,6 @@ ixgbe_dev_filter_ctrl(struct rte_eth_dev *dev,
 	case RTE_ETH_FILTER_NTUPLE:
 		ret = ixgbe_ntuple_filter_handle(dev, filter_op, arg);
 		break;
-	case RTE_ETH_FILTER_SYN:
-		ret = ixgbe_syn_filter_handle(dev, filter_op, arg);
-		break;
 	case RTE_ETH_FILTER_FDIR:
 		ret = ixgbe_fdir_ctrl_func(dev, filter_op, arg);
 		break;
diff --git a/drivers/net/qede/qede_filter.c b/drivers/net/qede/qede_filter.c
index 28dc9d2234..f3da5ecd92 100644
--- a/drivers/net/qede/qede_filter.c
+++ b/drivers/net/qede/qede_filter.c
@@ -1561,7 +1561,6 @@ int qede_dev_filter_ctrl(struct rte_eth_dev *eth_dev,
 
 		*(const void **)arg = &qede_flow_ops;
 		return 0;
-	case RTE_ETH_FILTER_SYN:
 	case RTE_ETH_FILTER_HASH:
 	case RTE_ETH_FILTER_L2_TUNNEL:
 	case RTE_ETH_FILTER_MAX:
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index d976a57f2a..13f4355cf1 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -1748,9 +1748,6 @@ sfc_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
 	case RTE_ETH_FILTER_NONE:
 		sfc_err(sa, "Global filters configuration not supported");
 		break;
-	case RTE_ETH_FILTER_SYN:
-		sfc_err(sa, "SYN filters not supported");
-		break;
 	case RTE_ETH_FILTER_NTUPLE:
 		sfc_err(sa, "NTUPLE filters not supported");
 		break;
diff --git a/lib/librte_ethdev/rte_eth_ctrl.h b/lib/librte_ethdev/rte_eth_ctrl.h
index c5e33bec31..48515818dd 100644
--- a/lib/librte_ethdev/rte_eth_ctrl.h
+++ b/lib/librte_ethdev/rte_eth_ctrl.h
@@ -56,17 +56,6 @@ enum rte_filter_op {
 	RTE_ETH_FILTER_OP_MAX
 };
 
-/**
- * A structure used to define the TCP syn filter entry
- * to support RTE_ETH_FILTER_SYN with RTE_ETH_FILTER_ADD,
- * RTE_ETH_FILTER_DELETE and RTE_ETH_FILTER_GET operations.
- */
-struct rte_eth_syn_filter {
-	uint8_t hig_pri;     /**< 1 - higher priority than other filters,
-				  0 - lower priority. */
-	uint16_t queue;      /**< Queue assigned to when match */
-};
-
 /**
  * Define all structures for ntuple Filter type.
  */
diff --git a/lib/librte_ethdev/rte_ethdev_driver.h b/lib/librte_ethdev/rte_ethdev_driver.h
index 67a83dacc7..436e7ead9c 100644
--- a/lib/librte_ethdev/rte_ethdev_driver.h
+++ b/lib/librte_ethdev/rte_ethdev_driver.h
@@ -1365,6 +1365,16 @@ struct rte_eth_ethertype_filter {
 	uint16_t queue;               /**< Queue assigned to when match*/
 };
 
+/**
+ * A structure used to define the TCP syn filter entry
+ * to support RTE_ETH_FILTER_SYN data representation.
+ */
+struct rte_eth_syn_filter {
+	/** 1 - higher priority than other filters, 0 - lower priority. */
+	uint8_t hig_pri;
+	uint16_t queue;      /**< Queue assigned to when match */
+};
+
 #ifdef __cplusplus
 }
 #endif
