diff --git a/doc/guides/nics/atlantic.rst b/doc/guides/nics/atlantic.rst
index 80591b13c185..22f2410d0e9a 100644
--- a/doc/guides/nics/atlantic.rst
+++ b/doc/guides/nics/atlantic.rst
@@ -19,6 +19,12 @@ Supported features
 - RSS (Receive Side Scaling)
 - Checksum offload
 - Jumbo Frame upto 16K
+- MACSEC offload
+
+Experimental API features
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+- MACSEC PMD API is considered as experimental and is subject to change/removal in next DPDK releases.
 
 Configuration Information
 ^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/doc/guides/nics/features/atlantic.ini b/doc/guides/nics/features/atlantic.ini
index 5ed095b14323..2bb8ecc01789 100644
--- a/doc/guides/nics/features/atlantic.ini
+++ b/doc/guides/nics/features/atlantic.ini
@@ -20,6 +20,7 @@ VLAN filter          = Y
 Flow control         = Y
 CRC offload          = Y
 VLAN offload         = Y
+MACsec offload       = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
 Packet type parsing  = Y
diff --git a/drivers/net/atlantic/Makefile b/drivers/net/atlantic/Makefile
index 62dcdbffa69c..263f12b5575f 100644
--- a/drivers/net/atlantic/Makefile
+++ b/drivers/net/atlantic/Makefile
@@ -31,5 +31,6 @@ SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += hw_atl_utils.c
 SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += hw_atl_llh.c
 SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += hw_atl_utils_fw2x.c
 SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += hw_atl_b0.c
+SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += rte_pmd_atlantic.c
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/atlantic/atl_ethdev.c b/drivers/net/atlantic/atl_ethdev.c
index 8327863cd9b6..7ea6919ff1ca 100644
--- a/drivers/net/atlantic/atl_ethdev.c
+++ b/drivers/net/atlantic/atl_ethdev.c
@@ -167,6 +167,7 @@ static struct rte_pci_driver rte_atl_pmd = {
 			| DEV_RX_OFFLOAD_UDP_CKSUM \
 			| DEV_RX_OFFLOAD_TCP_CKSUM \
 			| DEV_RX_OFFLOAD_JUMBO_FRAME \
+			| DEV_RX_OFFLOAD_MACSEC_STRIP \
 			| DEV_RX_OFFLOAD_VLAN_FILTER)
 
 #define ATL_TX_OFFLOADS (DEV_TX_OFFLOAD_VLAN_INSERT \
@@ -174,6 +175,7 @@ static struct rte_pci_driver rte_atl_pmd = {
 			| DEV_TX_OFFLOAD_UDP_CKSUM \
 			| DEV_TX_OFFLOAD_TCP_CKSUM \
 			| DEV_TX_OFFLOAD_TCP_TSO \
+			| DEV_TX_OFFLOAD_MACSEC_INSERT \
 			| DEV_TX_OFFLOAD_MULTI_SEGS)
 
 static const struct rte_eth_desc_lim rx_desc_lim = {
@@ -698,6 +700,82 @@ atl_dev_reset(struct rte_eth_dev *dev)
 	return ret;
 }
 
+int atl_macsec_enable(struct rte_eth_dev *dev,
+		      uint8_t encr, uint8_t repl_prot)
+{
+	struct aq_hw_cfg_s *cfg =
+		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+
+	cfg->aq_macsec.common.macsec_enabled = 1;
+	cfg->aq_macsec.common.encryption_enabled = encr;
+	cfg->aq_macsec.common.replay_protection_enabled = repl_prot;
+
+	return 0;
+}
+
+int atl_macsec_disable(struct rte_eth_dev *dev)
+{
+	struct aq_hw_cfg_s *cfg =
+		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+
+	cfg->aq_macsec.common.macsec_enabled = 0;
+
+	return 0;
+}
+
+int atl_macsec_config_txsc(struct rte_eth_dev *dev, uint8_t *mac)
+{
+	struct aq_hw_cfg_s *cfg =
+		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+
+	memset(&cfg->aq_macsec.txsc.mac, 0, sizeof(cfg->aq_macsec.txsc.mac));
+	memcpy((uint8_t *)&cfg->aq_macsec.txsc.mac + 2, mac, ETHER_ADDR_LEN);
+
+	return 0;
+}
+
+int atl_macsec_config_rxsc(struct rte_eth_dev *dev,
+			   uint8_t *mac, uint16_t pi)
+{
+	struct aq_hw_cfg_s *cfg =
+		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+
+	memset(&cfg->aq_macsec.rxsc.mac, 0, sizeof(cfg->aq_macsec.rxsc.mac));
+	memcpy((uint8_t *)&cfg->aq_macsec.rxsc.mac + 2, mac, ETHER_ADDR_LEN);
+	cfg->aq_macsec.rxsc.pi = pi;
+
+	return 0;
+}
+
+int atl_macsec_select_txsa(struct rte_eth_dev *dev,
+			   uint8_t idx, uint8_t an,
+			   uint32_t pn, uint8_t *key)
+{
+	struct aq_hw_cfg_s *cfg =
+		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+
+	cfg->aq_macsec.txsa.idx = idx;
+	cfg->aq_macsec.txsa.pn = pn;
+	cfg->aq_macsec.txsa.an = an;
+
+	memcpy(&cfg->aq_macsec.txsa.key, key, 16);
+	return 0;
+}
+
+int atl_macsec_select_rxsa(struct rte_eth_dev *dev,
+			   uint8_t idx, uint8_t an,
+			   uint32_t pn, uint8_t *key)
+{
+	struct aq_hw_cfg_s *cfg =
+		ATL_DEV_PRIVATE_TO_CFG(dev->data->dev_private);
+
+	cfg->aq_macsec.rxsa.idx = idx;
+	cfg->aq_macsec.rxsa.pn = pn;
+	cfg->aq_macsec.rxsa.an = an;
+
+	memcpy(&cfg->aq_macsec.rxsa.key, key, 16);
+	return 0;
+}
 
 static int
 atl_dev_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
@@ -1532,6 +1610,21 @@ atl_rss_hash_conf_get(struct rte_eth_dev *dev,
 	return 0;
 }
 
+static bool
+is_device_supported(struct rte_eth_dev *dev, struct rte_pci_driver *drv)
+{
+	if (strcmp(dev->device->driver->name, drv->driver.name))
+		return false;
+
+	return true;
+}
+
+bool
+is_atlantic_supported(struct rte_eth_dev *dev)
+{
+	return is_device_supported(dev, &rte_atl_pmd);
+}
+
 RTE_PMD_REGISTER_PCI(net_atlantic, rte_atl_pmd);
 RTE_PMD_REGISTER_PCI_TABLE(net_atlantic, pci_id_atl_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_atlantic, "* igb_uio | uio_pci_generic");
diff --git a/drivers/net/atlantic/atl_ethdev.h b/drivers/net/atlantic/atl_ethdev.h
index 1e29999b539c..b162138c59d3 100644
--- a/drivers/net/atlantic/atl_ethdev.h
+++ b/drivers/net/atlantic/atl_ethdev.h
@@ -104,4 +104,16 @@ uint16_t atl_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 uint16_t atl_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 		uint16_t nb_pkts);
 
+int atl_macsec_enable(struct rte_eth_dev *dev, uint8_t encr, uint8_t repl_prot);
+int atl_macsec_disable(struct rte_eth_dev *dev);
+int atl_macsec_config_txsc(struct rte_eth_dev *dev, uint8_t *mac);
+int atl_macsec_config_rxsc(struct rte_eth_dev *dev,
+			   uint8_t *mac, uint16_t pi);
+int atl_macsec_select_txsa(struct rte_eth_dev *dev, uint8_t idx,
+			   uint8_t an, uint32_t pn, uint8_t *key);
+int atl_macsec_select_rxsa(struct rte_eth_dev *dev, uint8_t idx,
+			   uint8_t an, uint32_t pn, uint8_t *key);
+
+bool is_atlantic_supported(struct rte_eth_dev *dev);
+
 #endif /* _ATLANTIC_ETHDEV_H_ */
diff --git a/drivers/net/atlantic/meson.build b/drivers/net/atlantic/meson.build
index 28fb97cace6e..60b84684ec0a 100644
--- a/drivers/net/atlantic/meson.build
+++ b/drivers/net/atlantic/meson.build
@@ -9,4 +9,5 @@ sources = files(
 	'hw_atl/hw_atl_llh.c',
 	'hw_atl/hw_atl_utils_fw2x.c',
 	'hw_atl/hw_atl_utils.c',
+	'rte_pmd_atlantic.c',
 )
diff --git a/drivers/net/atlantic/rte_pmd_atlantic.c b/drivers/net/atlantic/rte_pmd_atlantic.c
new file mode 100644
index 000000000000..5bf4da27fdd0
--- /dev/null
+++ b/drivers/net/atlantic/rte_pmd_atlantic.c
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Aquantia Corporation
+ */
+
+#include <rte_ethdev_driver.h>
+
+#include "rte_pmd_atlantic.h"
+#include "atl_ethdev.h"
+
+
+__rte_experimental int
+rte_pmd_atl_macsec_enable(uint16_t port,
+			  uint8_t encr, uint8_t repl_prot)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_atlantic_supported(dev))
+		return -ENOTSUP;
+
+	return atl_macsec_enable(dev, encr, repl_prot);
+}
+
+__rte_experimental int
+rte_pmd_atl_macsec_disable(uint16_t port)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_atlantic_supported(dev))
+		return -ENOTSUP;
+
+	return atl_macsec_disable(dev);
+}
+
+__rte_experimental int
+rte_pmd_atl_macsec_config_txsc(uint16_t port, uint8_t *mac)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_atlantic_supported(dev))
+		return -ENOTSUP;
+
+	return atl_macsec_config_txsc(dev, mac);
+}
+
+__rte_experimental int
+rte_pmd_atl_macsec_config_rxsc(uint16_t port, uint8_t *mac, uint16_t pi)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_atlantic_supported(dev))
+		return -ENOTSUP;
+
+	return atl_macsec_config_rxsc(dev, mac, pi);
+}
+
+__rte_experimental int
+rte_pmd_atl_macsec_select_txsa(uint16_t port, uint8_t idx, uint8_t an,
+				 uint32_t pn, uint8_t *key)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_atlantic_supported(dev))
+		return -ENOTSUP;
+
+	return atl_macsec_select_txsa(dev, idx, an, pn, key);
+}
+
+__rte_experimental int
+rte_pmd_atl_macsec_select_rxsa(uint16_t port, uint8_t idx, uint8_t an,
+				 uint32_t pn, uint8_t *key)
+{
+	struct rte_eth_dev *dev;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port, -ENODEV);
+
+	dev = &rte_eth_devices[port];
+
+	if (!is_atlantic_supported(dev))
+		return -ENOTSUP;
+
+	return atl_macsec_select_rxsa(dev, idx, an, pn, key);
+}
diff --git a/drivers/net/atlantic/rte_pmd_atlantic.h b/drivers/net/atlantic/rte_pmd_atlantic.h
new file mode 100644
index 000000000000..e4db7c6c278c
--- /dev/null
+++ b/drivers/net/atlantic/rte_pmd_atlantic.h
@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Aquantia Corporation
+ */
+
+/**
+ * @file rte_pmd_atlantic.h
+ * atlantic PMD specific functions.
+ *
+ **/
+
+#ifndef _PMD_ATLANTIC_H_
+#define _PMD_ATLANTIC_H_
+
+#include <rte_ethdev_driver.h>
+
+/**
+ * Enable MACsec offload.
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @param encr
+ *    1 - Enable encryption (encrypt and add integrity signature).
+ *    0 - Disable encryption (only add integrity signature).
+ * @param repl_prot
+ *    1 - Enable replay protection.
+ *    0 - Disable replay protection.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port* invalid.
+ *   - (-ENOTSUP) if hardware doesn't support this feature.
+ */
+int rte_pmd_atl_macsec_enable(uint16_t port, uint8_t encr, uint8_t repl_prot);
+
+/**
+ * Disable MACsec offload.
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port* invalid.
+ *   - (-ENOTSUP) if hardware doesn't support this feature.
+ */
+int rte_pmd_atl_macsec_disable(uint16_t port);
+
+/**
+ * Configure Tx SC (Secure Connection).
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @param mac
+ *   The MAC address on the local side.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port* invalid.
+ *   - (-ENOTSUP) if hardware doesn't support this feature.
+ */
+int rte_pmd_atl_macsec_config_txsc(uint16_t port, uint8_t *mac);
+
+/**
+ * Configure Rx SC (Secure Connection).
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @param mac
+ *   The MAC address on the remote side.
+ * @param pi
+ *   The PI (port identifier) on the remote side.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port* invalid.
+ *   - (-ENOTSUP) if hardware doesn't support this feature.
+ */
+int rte_pmd_atl_macsec_config_rxsc(uint16_t port, uint8_t *mac, uint16_t pi);
+
+/**
+ * Enable Tx SA (Secure Association).
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @param idx
+ *   The SA to be enabled (0 or 1).
+ * @param an
+ *   The association number on the local side.
+ * @param pn
+ *   The packet number on the local side.
+ * @param key
+ *   The key on the local side.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port* invalid.
+ *   - (-ENOTSUP) if hardware doesn't support this feature.
+ *   - (-EINVAL) if bad parameter.
+ */
+int rte_pmd_atl_macsec_select_txsa(uint16_t port, uint8_t idx, uint8_t an,
+				   uint32_t pn, uint8_t *key);
+
+/**
+ * Enable Rx SA (Secure Association).
+ *
+ * @param port
+ *   The port identifier of the Ethernet device.
+ * @param idx
+ *   The SA to be enabled (0 or 1)
+ * @param an
+ *   The association number on the remote side.
+ * @param pn
+ *   The packet number on the remote side.
+ * @param key
+ *   The key on the remote side.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENODEV) if *port* invalid.
+ *   - (-ENOTSUP) if hardware doesn't support this feature.
+ *   - (-EINVAL) if bad parameter.
+ */
+int rte_pmd_atl_macsec_select_rxsa(uint16_t port, uint8_t idx, uint8_t an,
+				   uint32_t pn, uint8_t *key);
+
+#endif /* _PMD_ATLANTIC_H_ */
diff --git a/drivers/net/atlantic/rte_pmd_atlantic_version.map b/drivers/net/atlantic/rte_pmd_atlantic_version.map
index 521e51f411fb..b16faa999f43 100644
--- a/drivers/net/atlantic/rte_pmd_atlantic_version.map
+++ b/drivers/net/atlantic/rte_pmd_atlantic_version.map
@@ -2,3 +2,15 @@ DPDK_18.11 {
 
 	local: *;
 };
+
+EXPERIMENTAL {
+	global:
+
+	rte_pmd_atl_macsec_enable;
+	rte_pmd_atl_macsec_disable;
+	rte_pmd_atl_macsec_config_txsc;
+	rte_pmd_atl_macsec_config_rxsc;
+	rte_pmd_atl_macsec_select_txsa;
+	rte_pmd_atl_macsec_select_rxsa;
+};
+
