[v5,04/14] drivers/net/ipn3ke: add IPN3KE representor of PMD driver

diff --git a/drivers/net/ipn3ke/Makefile b/drivers/net/ipn3ke/Makefile
index d7aa79b..828df3a 100644
--- a/drivers/net/ipn3ke/Makefile
+++ b/drivers/net/ipn3ke/Makefile
@@ -32,5 +32,6 @@  LIBABIVER := 1
 # all source are stored in SRCS-y
 #
 SRCS-$(CONFIG_RTE_LIBRTE_IPN3KE_PMD) += ipn3ke_ethdev.c
+SRCS-$(CONFIG_RTE_LIBRTE_IPN3KE_PMD) += ipn3ke_representor.c
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/ipn3ke/ipn3ke_ethdev.c b/drivers/net/ipn3ke/ipn3ke_ethdev.c
index 372ce80..dc20009 100644
--- a/drivers/net/ipn3ke/ipn3ke_ethdev.c
+++ b/drivers/net/ipn3ke/ipn3ke_ethdev.c
@@ -404,9 +404,23 @@  static int ipn3ke_vswitch_probe(struct rte_afu_device *afu_dev)
 
 	/* probe representor ports */
 	for (i = 0; i < hw->port_num; i++) {
+		struct ipn3ke_rpst rpst = {
+			.port_id = i,
+			.switch_domain_id = hw->switch_domain_id,
+			.hw = hw
+		};
+
 		/* representor port net_bdf_port */
 		snprintf(name, sizeof(name), "net_%s_representor_%d",
 			afu_dev->device.name, i);
+
+		retval = rte_eth_dev_create(&afu_dev->device, name,
+			sizeof(struct ipn3ke_rpst), NULL, NULL,
+			ipn3ke_rpst_init, &rpst);
+
+		if (retval)
+			IPN3KE_AFU_PMD_ERR("failed to create ipn3ke representor %s.",
+								name);
 	}
 
 	return 0;
@@ -430,6 +444,8 @@  static int ipn3ke_vswitch_remove(struct rte_afu_device *afu_dev)
 		ethdev = rte_eth_dev_allocated(afu_dev->device.name);
 		if (!ethdev)
 			return -ENODEV;
+
+		rte_eth_dev_destroy(ethdev, ipn3ke_rpst_uninit);
 	}
 
 	ret = rte_eth_switch_domain_free(hw->switch_domain_id);
diff --git a/drivers/net/ipn3ke/ipn3ke_representor.c b/drivers/net/ipn3ke/ipn3ke_representor.c
new file mode 100644
index 0000000..fdb4b5c
--- /dev/null
+++ b/drivers/net/ipn3ke/ipn3ke_representor.c
@@ -0,0 +1,961 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation
+ */
+
+#include <stdint.h>
+
+#include <rte_bus_pci.h>
+#include <rte_ethdev.h>
+#include <rte_pci.h>
+#include <rte_malloc.h>
+
+#include <rte_mbuf.h>
+#include <rte_sched.h>
+#include <rte_ethdev_driver.h>
+#include <rte_spinlock.h>
+
+#include <rte_io.h>
+#include <rte_rawdev.h>
+#include <rte_rawdev_pmd.h>
+#include <rte_bus_ifpga.h>
+#include <ifpga_logs.h>
+
+#include "ipn3ke_rawdev_api.h"
+#include "ipn3ke_logs.h"
+#include "ipn3ke_ethdev.h"
+
+static int ipn3ke_rpst_scan_num;
+static pthread_t ipn3ke_rpst_scan_thread;
+
+/** Double linked list of representor port. */
+TAILQ_HEAD(ipn3ke_rpst_list, ipn3ke_rpst);
+
+static struct ipn3ke_rpst_list ipn3ke_rpst_list =
+	TAILQ_HEAD_INITIALIZER(ipn3ke_rpst_list);
+
+static rte_spinlock_t ipn3ke_link_notify_list_lk = RTE_SPINLOCK_INITIALIZER;
+
+static int
+ipn3ke_rpst_link_check(struct ipn3ke_rpst *rpst);
+
+static void
+ipn3ke_rpst_dev_infos_get(struct rte_eth_dev *ethdev,
+	struct rte_eth_dev_info *dev_info)
+{
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+
+	dev_info->speed_capa =
+		(hw->retimer.mac_type ==
+			IFPGA_RAWDEV_RETIMER_MAC_TYPE_10GE_XFI) ?
+		ETH_LINK_SPEED_10G :
+		((hw->retimer.mac_type ==
+			IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) ?
+		ETH_LINK_SPEED_25G :
+		ETH_LINK_SPEED_AUTONEG);
+
+	dev_info->max_rx_queues  = 1;
+	dev_info->max_tx_queues  = 1;
+	dev_info->min_rx_bufsize = IPN3KE_AFU_BUF_SIZE_MIN;
+	dev_info->max_rx_pktlen  = IPN3KE_AFU_FRAME_SIZE_MAX;
+	dev_info->max_mac_addrs  = hw->port_num;
+	dev_info->max_vfs = 0;
+	dev_info->default_txconf = (struct rte_eth_txconf) {
+		.offloads = 0,
+	};
+	dev_info->rx_queue_offload_capa = 0;
+	dev_info->rx_offload_capa =
+		DEV_RX_OFFLOAD_VLAN_STRIP |
+		DEV_RX_OFFLOAD_QINQ_STRIP |
+		DEV_RX_OFFLOAD_IPV4_CKSUM |
+		DEV_RX_OFFLOAD_UDP_CKSUM |
+		DEV_RX_OFFLOAD_TCP_CKSUM |
+		DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
+		DEV_RX_OFFLOAD_VLAN_EXTEND |
+		DEV_RX_OFFLOAD_VLAN_FILTER |
+		DEV_RX_OFFLOAD_JUMBO_FRAME;
+
+	dev_info->tx_queue_offload_capa = DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+	dev_info->tx_offload_capa =
+		DEV_TX_OFFLOAD_VLAN_INSERT |
+		DEV_TX_OFFLOAD_QINQ_INSERT |
+		DEV_TX_OFFLOAD_IPV4_CKSUM |
+		DEV_TX_OFFLOAD_UDP_CKSUM |
+		DEV_TX_OFFLOAD_TCP_CKSUM |
+		DEV_TX_OFFLOAD_SCTP_CKSUM |
+		DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM |
+		DEV_TX_OFFLOAD_TCP_TSO |
+		DEV_TX_OFFLOAD_VXLAN_TNL_TSO |
+		DEV_TX_OFFLOAD_GRE_TNL_TSO |
+		DEV_TX_OFFLOAD_IPIP_TNL_TSO |
+		DEV_TX_OFFLOAD_GENEVE_TNL_TSO |
+		DEV_TX_OFFLOAD_MULTI_SEGS |
+		dev_info->tx_queue_offload_capa;
+
+	dev_info->dev_capa =
+		RTE_ETH_DEV_CAPA_RUNTIME_RX_QUEUE_SETUP |
+		RTE_ETH_DEV_CAPA_RUNTIME_TX_QUEUE_SETUP;
+
+	dev_info->switch_info.name = ethdev->device->name;
+	dev_info->switch_info.domain_id = rpst->switch_domain_id;
+	dev_info->switch_info.port_id = rpst->port_id;
+}
+
+static int
+ipn3ke_rpst_dev_configure(__rte_unused struct rte_eth_dev *dev)
+{
+	return 0;
+}
+
+static int
+ipn3ke_rpst_dev_start(struct rte_eth_dev *dev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(dev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(dev);
+	struct rte_rawdev *rawdev;
+	uint64_t base_mac;
+	uint32_t val;
+	char attr_name[IPN3KE_RAWDEV_ATTR_LEN_MAX];
+
+	rawdev = hw->rawdev;
+
+	memset(attr_name, 0, sizeof(attr_name));
+	snprintf(attr_name, IPN3KE_RAWDEV_ATTR_LEN_MAX, "%s",
+			"LineSideBaseMAC");
+	rawdev->dev_ops->attr_get(rawdev, attr_name, &base_mac);
+	ether_addr_copy((struct ether_addr *)&base_mac, &rpst->mac_addr);
+
+	ether_addr_copy(&rpst->mac_addr, &dev->data->mac_addrs[0]);
+	dev->data->mac_addrs->addr_bytes[ETHER_ADDR_LEN - 1] =
+		(uint8_t)rpst->port_id + 1;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Set mac address */
+		rte_memcpy(((char *)(&val)),
+			(char *)&dev->data->mac_addrs->addr_bytes[0],
+			sizeof(uint32_t));
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_PRIMARY_MAC_ADDR0,
+				rpst->port_id,
+				0);
+		rte_memcpy(((char *)(&val)),
+			(char *)&dev->data->mac_addrs->addr_bytes[4],
+			sizeof(uint16_t));
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_PRIMARY_MAC_ADDR1,
+				rpst->port_id,
+				0);
+
+		/* Enable the TX path */
+		val = 0;
+		val &= IPN3KE_MAC_TX_PACKET_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_TX_PACKET_CONTROL,
+				rpst->port_id,
+				0);
+
+		/* Disables source address override */
+		val = 0;
+		val &= IPN3KE_MAC_TX_SRC_ADDR_OVERRIDE_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_TX_SRC_ADDR_OVERRIDE,
+				rpst->port_id,
+				0);
+
+		/* Enable the RX path */
+		val = 0;
+		val &= IPN3KE_MAC_RX_TRANSFER_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_TRANSFER_CONTROL,
+				rpst->port_id,
+				0);
+
+		/* Clear all TX statistics counters */
+		val = 1;
+		val &= IPN3KE_MAC_TX_STATS_CLR_CLEAR_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_TX_STATS_CLR,
+				rpst->port_id,
+				0);
+
+		/* Clear all RX statistics counters */
+		val = 1;
+		val &= IPN3KE_MAC_RX_STATS_CLR_CLEAR_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_STATS_CLR,
+				rpst->port_id,
+				0);
+	}
+
+	ipn3ke_rpst_link_update(dev, 0);
+
+	return 0;
+}
+
+static void
+ipn3ke_rpst_dev_stop(__rte_unused struct rte_eth_dev *dev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(dev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(dev);
+	uint32_t val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+	/* Disable the TX path */
+		val = 1;
+		val &= IPN3KE_MAC_TX_PACKET_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_TX_PACKET_CONTROL,
+				rpst->port_id,
+				0);
+
+		/* Disable the RX path */
+		val = 1;
+		val &= IPN3KE_MAC_RX_TRANSFER_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_TRANSFER_CONTROL,
+				rpst->port_id,
+				0);
+	}
+}
+
+static void
+ipn3ke_rpst_dev_close(struct rte_eth_dev *dev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(dev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(dev);
+	uint32_t val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Disable the TX path */
+		val = 1;
+		val &= IPN3KE_MAC_TX_PACKET_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_TX_PACKET_CONTROL,
+				rpst->port_id,
+				0);
+
+		/* Disable the RX path */
+		val = 1;
+		val &= IPN3KE_MAC_RX_TRANSFER_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_TRANSFER_CONTROL,
+				rpst->port_id,
+				0);
+	}
+}
+
+/*
+ * Reset PF device only to re-initialize resources in PMD layer
+ */
+static int
+ipn3ke_rpst_dev_reset(struct rte_eth_dev *dev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(dev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(dev);
+	uint32_t val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Disable the TX path */
+		val = 1;
+		val &= IPN3KE_MAC_TX_PACKET_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_TX_PACKET_CONTROL,
+				rpst->port_id,
+				0);
+
+		/* Disable the RX path */
+		val = 1;
+		val &= IPN3KE_MAC_RX_TRANSFER_CONTROL_MASK;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_TRANSFER_CONTROL,
+				rpst->port_id,
+				0);
+	}
+
+	return 0;
+}
+
+static int
+ipn3ke_rpst_rx_queue_start(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused uint16_t rx_queue_id)
+{
+	return 0;
+}
+static int
+ipn3ke_rpst_rx_queue_stop(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused uint16_t rx_queue_id)
+{
+	return 0;
+}
+static int
+ipn3ke_rpst_tx_queue_start(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused uint16_t tx_queue_id)
+{
+	return 0;
+}
+static int
+ipn3ke_rpst_tx_queue_stop(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused uint16_t tx_queue_id)
+{
+	return 0;
+}
+static int
+ipn3ke_rpst_rx_queue_setup(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused uint16_t queue_idx, __rte_unused uint16_t nb_desc,
+	__rte_unused unsigned int socket_id,
+	__rte_unused const struct rte_eth_rxconf *rx_conf,
+	__rte_unused struct rte_mempool *mp)
+{
+	return 0;
+}
+static void
+ipn3ke_rpst_rx_queue_release(__rte_unused void *rxq)
+{
+}
+static int
+ipn3ke_rpst_tx_queue_setup(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused uint16_t queue_idx, __rte_unused uint16_t nb_desc,
+	__rte_unused unsigned int socket_id,
+	__rte_unused const struct rte_eth_txconf *tx_conf)
+{
+	return 0;
+}
+static void
+ipn3ke_rpst_tx_queue_release(__rte_unused void *txq)
+{
+}
+
+static int
+ipn3ke_rpst_stats_get(__rte_unused struct rte_eth_dev *ethdev,
+	__rte_unused struct rte_eth_stats *stats)
+{
+	return 0;
+}
+static int
+ipn3ke_rpst_xstats_get(__rte_unused struct rte_eth_dev *dev,
+	__rte_unused struct rte_eth_xstat *xstats,
+	__rte_unused unsigned int n)
+{
+	return 0;
+}
+static int ipn3ke_rpst_xstats_get_names(__rte_unused struct rte_eth_dev *dev,
+		__rte_unused struct rte_eth_xstat_name *xstats_names,
+		__rte_unused unsigned int limit)
+{
+	return 0;
+}
+
+static void
+ipn3ke_rpst_stats_reset(__rte_unused struct rte_eth_dev *ethdev)
+{
+}
+
+static void
+ipn3ke_update_link(struct rte_rawdev *rawdev,
+	uint16_t port, struct rte_eth_link *link)
+{
+	uint64_t line_link_bitmap = 0;
+	enum ifpga_rawdev_link_speed link_speed;
+
+	rawdev->dev_ops->attr_get(rawdev,
+				"LineSideLinkStatus",
+				(uint64_t *)&line_link_bitmap);
+
+	/* Parse the link status */
+	if ((1 << port) & line_link_bitmap)
+		link->link_status = 1;
+	else
+		link->link_status = 0;
+
+	IPN3KE_AFU_PMD_DEBUG("port is %d\n", port);
+	IPN3KE_AFU_PMD_DEBUG("link->link_status is %d\n", link->link_status);
+
+	rawdev->dev_ops->attr_get(rawdev,
+				"LineSideLinkSpeed",
+				(uint64_t *)&link_speed);
+	switch (link_speed) {
+	case IFPGA_RAWDEV_LINK_SPEED_10GB:
+		link->link_speed = ETH_SPEED_NUM_10G;
+		break;
+	case IFPGA_RAWDEV_LINK_SPEED_25GB:
+		link->link_speed = ETH_SPEED_NUM_25G;
+		break;
+	default:
+		IPN3KE_AFU_PMD_ERR("Unknown link speed info %u", link_speed);
+		break;
+	}
+}
+
+/*
+ * Set device link up.
+ */
+int
+ipn3ke_rpst_dev_set_link_up(struct rte_eth_dev *dev)
+{
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(dev);
+	struct rte_eth_dev *pf;
+	int ret = 0;
+
+	if (rpst->i40e_pf_eth) {
+		ret = rte_eth_dev_set_link_up(rpst->i40e_pf_eth_port_id);
+		pf = rpst->i40e_pf_eth;
+		(*rpst->i40e_pf_eth->dev_ops->link_update)(pf, 1);
+	}
+
+	return ret;
+}
+
+/*
+ * Set device link down.
+ */
+int
+ipn3ke_rpst_dev_set_link_down(struct rte_eth_dev *dev)
+{
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(dev);
+	struct rte_eth_dev *pf;
+	int ret = 0;
+
+	if (rpst->i40e_pf_eth) {
+		ret = rte_eth_dev_set_link_down(rpst->i40e_pf_eth_port_id);
+		pf = rpst->i40e_pf_eth;
+		(*rpst->i40e_pf_eth->dev_ops->link_update)(pf, 1);
+	}
+
+	return ret;
+}
+int
+ipn3ke_rpst_link_update(struct rte_eth_dev *ethdev,
+	__rte_unused int wait_to_complete)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	struct rte_rawdev *rawdev;
+	struct rte_eth_link link;
+	struct rte_eth_dev *pf;
+
+	memset(&link, 0, sizeof(link));
+
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_autoneg = !(ethdev->data->dev_conf.link_speeds &
+				ETH_LINK_SPEED_FIXED);
+
+	rawdev = hw->rawdev;
+	ipn3ke_update_link(rawdev, rpst->port_id, &link);
+
+	if (!rpst->ori_linfo.link_status &&
+		link.link_status) {
+		IPN3KE_AFU_PMD_DEBUG("Update Rpst %d Up\n", rpst->port_id);
+		rpst->ori_linfo.link_status = link.link_status;
+		rpst->ori_linfo.link_speed = link.link_speed;
+
+		rte_eth_linkstatus_set(ethdev, &link);
+
+		if (rpst->i40e_pf_eth) {
+			IPN3KE_AFU_PMD_DEBUG("Update FVL PF %d Up\n",
+				rpst->i40e_pf_eth_port_id);
+			rte_eth_dev_set_link_up(rpst->i40e_pf_eth_port_id);
+			pf = rpst->i40e_pf_eth;
+			(*rpst->i40e_pf_eth->dev_ops->link_update)(pf, 1);
+		}
+	} else if (rpst->ori_linfo.link_status &&
+				!link.link_status) {
+		IPN3KE_AFU_PMD_DEBUG("Update Rpst %d Down\n",
+			rpst->port_id);
+		rpst->ori_linfo.link_status = link.link_status;
+		rpst->ori_linfo.link_speed = link.link_speed;
+
+		rte_eth_linkstatus_set(ethdev, &link);
+
+		if (rpst->i40e_pf_eth) {
+			IPN3KE_AFU_PMD_DEBUG("Update FVL PF %d Down\n",
+				rpst->i40e_pf_eth_port_id);
+			rte_eth_dev_set_link_down(rpst->i40e_pf_eth_port_id);
+			pf = rpst->i40e_pf_eth;
+			(*rpst->i40e_pf_eth->dev_ops->link_update)(pf, 1);
+		}
+	}
+
+	return 0;
+}
+
+static int
+ipn3ke_rpst_link_check(struct ipn3ke_rpst *rpst)
+{
+	struct ipn3ke_hw *hw;
+	struct rte_rawdev *rawdev;
+	struct rte_eth_link link;
+	struct rte_eth_dev *pf;
+
+	if (rpst == NULL)
+		return -1;
+
+	hw = rpst->hw;
+
+	memset(&link, 0, sizeof(link));
+
+	link.link_duplex = ETH_LINK_FULL_DUPLEX;
+	link.link_autoneg = !(rpst->ethdev->data->dev_conf.link_speeds &
+				ETH_LINK_SPEED_FIXED);
+
+	rawdev = hw->rawdev;
+	ipn3ke_update_link(rawdev, rpst->port_id, &link);
+
+	if (!rpst->ori_linfo.link_status &&
+		link.link_status) {
+		IPN3KE_AFU_PMD_DEBUG("Check Rpst %d Up\n", rpst->port_id);
+		rpst->ori_linfo.link_status = link.link_status;
+		rpst->ori_linfo.link_speed = link.link_speed;
+
+		rte_eth_linkstatus_set(rpst->ethdev, &link);
+
+		if (rpst->i40e_pf_eth) {
+			IPN3KE_AFU_PMD_DEBUG("Check FVL PF %d Up\n",
+				rpst->i40e_pf_eth_port_id);
+			rte_eth_dev_set_link_up(rpst->i40e_pf_eth_port_id);
+			pf = rpst->i40e_pf_eth;
+			(*rpst->i40e_pf_eth->dev_ops->link_update)(pf, 1);
+		}
+	} else if (rpst->ori_linfo.link_status &&
+		!link.link_status) {
+		IPN3KE_AFU_PMD_DEBUG("Check Rpst %d Down\n", rpst->port_id);
+		rpst->ori_linfo.link_status = link.link_status;
+		rpst->ori_linfo.link_speed = link.link_speed;
+
+		rte_eth_linkstatus_set(rpst->ethdev, &link);
+
+		if (rpst->i40e_pf_eth) {
+			IPN3KE_AFU_PMD_DEBUG("Check FVL PF %d Down\n",
+				rpst->i40e_pf_eth_port_id);
+			rte_eth_dev_set_link_down(rpst->i40e_pf_eth_port_id);
+			pf = rpst->i40e_pf_eth;
+			(*rpst->i40e_pf_eth->dev_ops->link_update)(pf, 1);
+		}
+	}
+
+	return 0;
+}
+
+static void *
+ipn3ke_rpst_scan_handle_request(__rte_unused void *param)
+{
+	struct ipn3ke_rpst *rpst;
+	int num = 0;
+#define MS 1000
+#define SCAN_NUM 32
+
+	for (;;) {
+		num = 0;
+		TAILQ_FOREACH(rpst, &ipn3ke_rpst_list, next) {
+			if (rpst->i40e_pf_eth &&
+				rpst->ethdev->data->dev_started &&
+				rpst->i40e_pf_eth->data->dev_started)
+				ipn3ke_rpst_link_check(rpst);
+
+			if (++num > SCAN_NUM)
+				rte_delay_us(1 * MS);
+		}
+		rte_delay_us(50 * MS);
+
+		if (num == 0xffffff)
+			return NULL;
+	}
+
+	return NULL;
+}
+static int
+ipn3ke_rpst_scan_check(void)
+{
+	int ret;
+
+	if (ipn3ke_rpst_scan_num == 1) {
+		ret = pthread_create(&ipn3ke_rpst_scan_thread,
+			NULL,
+			ipn3ke_rpst_scan_handle_request, NULL);
+		if (ret) {
+			IPN3KE_AFU_PMD_ERR("Fail to create ipn3ke rpst scan thread");
+			return -1;
+		}
+	} else if (ipn3ke_rpst_scan_num == 0) {
+		ret = pthread_cancel(ipn3ke_rpst_scan_thread);
+		if (ret)
+			IPN3KE_AFU_PMD_ERR("Can't cancel the thread");
+
+		ret = pthread_join(ipn3ke_rpst_scan_thread, NULL);
+		if (ret)
+			IPN3KE_AFU_PMD_ERR("Can't join the thread");
+
+		return ret;
+	}
+
+	return 0;
+}
+
+void
+ipn3ke_rpst_promiscuous_enable(struct rte_eth_dev *ethdev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	uint32_t rddata, val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Enable all unicast */
+		(*hw->f_mac_read)(hw,
+				&rddata,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+		val = 1;
+		val &= IPN3KE_MAC_RX_FRAME_CONTROL_EN_ALLUCAST_MASK;
+		val |= rddata;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+	}
+}
+
+void
+ipn3ke_rpst_promiscuous_disable(struct rte_eth_dev *ethdev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	uint32_t rddata, val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Disable all unicast */
+		(*hw->f_mac_read)(hw,
+				&rddata,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+		val = 0;
+		val &= IPN3KE_MAC_RX_FRAME_CONTROL_EN_ALLUCAST_MASK;
+		val |= rddata;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+	}
+}
+
+void
+ipn3ke_rpst_allmulticast_enable(struct rte_eth_dev *ethdev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	uint32_t rddata, val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Enable all unicast */
+		(*hw->f_mac_read)(hw,
+				&rddata,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+		val = 1;
+		val <<= IPN3KE_MAC_RX_FRAME_CONTROL_EN_ALLMCAST_SHIFT;
+		val &= IPN3KE_MAC_RX_FRAME_CONTROL_EN_ALLMCAST_MASK;
+		val |= rddata;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+	}
+}
+
+void
+ipn3ke_rpst_allmulticast_disable(struct rte_eth_dev *ethdev)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	uint32_t rddata, val;
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		/* Disable all unicast */
+		(*hw->f_mac_read)(hw,
+				&rddata,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+		val = 0;
+		val <<= IPN3KE_MAC_RX_FRAME_CONTROL_EN_ALLMCAST_SHIFT;
+		val &= IPN3KE_MAC_RX_FRAME_CONTROL_EN_ALLMCAST_MASK;
+		val |= rddata;
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_RX_FRAME_CONTROL,
+				rpst->port_id,
+				0);
+	}
+}
+
+int
+ipn3ke_rpst_mac_addr_set(struct rte_eth_dev *ethdev,
+				struct ether_addr *mac_addr)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	uint32_t val;
+
+	if (!is_valid_assigned_ether_addr(mac_addr)) {
+		IPN3KE_AFU_PMD_ERR("Tried to set invalid MAC address.");
+		return -EINVAL;
+	}
+
+	if (hw->retimer.mac_type == IFPGA_RAWDEV_RETIMER_MAC_TYPE_25GE_25GAUI) {
+	} else {
+		ether_addr_copy(&mac_addr[0], &rpst->mac_addr);
+
+		/* Set mac address */
+		rte_memcpy(((char *)(&val)), &mac_addr[0], sizeof(uint32_t));
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_PRIMARY_MAC_ADDR0,
+				rpst->port_id,
+				0);
+		rte_memcpy(((char *)(&val)), &mac_addr[4], sizeof(uint16_t));
+		(*hw->f_mac_write)(hw,
+				val,
+				IPN3KE_MAC_PRIMARY_MAC_ADDR0,
+				rpst->port_id,
+				0);
+	}
+
+	return 0;
+}
+int
+ipn3ke_rpst_mtu_set(struct rte_eth_dev *ethdev, uint16_t mtu)
+{
+	int ret = 0;
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	struct rte_eth_dev_data *dev_data = ethdev->data;
+	uint32_t frame_size = mtu  + IPN3KE_ETH_OVERHEAD;
+
+	/* check if mtu is within the allowed range */
+	if (mtu < ETHER_MIN_MTU ||
+		frame_size > IPN3KE_MAC_FRAME_SIZE_MAX)
+		return -EINVAL;
+
+	/* mtu setting is forbidden if port is start */
+	/* make sure NIC port is stopped */
+	if (rpst->i40e_pf_eth && rpst->i40e_pf_eth->data->dev_started) {
+		IPN3KE_AFU_PMD_ERR("NIC port %d must "
+			"be stopped before configuration",
+			rpst->i40e_pf_eth->data->port_id);
+		return -EBUSY;
+	}
+	/* mtu setting is forbidden if port is start */
+	if (dev_data->dev_started) {
+		IPN3KE_AFU_PMD_ERR("FPGA port %d must "
+			"be stopped before configuration",
+			dev_data->port_id);
+		return -EBUSY;
+	}
+
+	if (frame_size > ETHER_MAX_LEN)
+		dev_data->dev_conf.rxmode.offloads |=
+			(uint64_t)(DEV_RX_OFFLOAD_JUMBO_FRAME);
+	else
+		dev_data->dev_conf.rxmode.offloads &=
+			(uint64_t)(~DEV_RX_OFFLOAD_JUMBO_FRAME);
+
+	dev_data->dev_conf.rxmode.max_rx_pkt_len = frame_size;
+
+	if (rpst->i40e_pf_eth) {
+		ret = rpst->i40e_pf_eth->dev_ops->mtu_set(rpst->i40e_pf_eth,
+							mtu);
+		if (!ret)
+			rpst->i40e_pf_eth->data->mtu = mtu;
+	}
+
+	return ret;
+}
+
+static int
+ipn3ke_afu_filter_ctrl(struct rte_eth_dev *ethdev,
+				enum rte_filter_type filter_type,
+				enum rte_filter_op filter_op,
+				void *arg)
+{
+	struct ipn3ke_hw *hw = IPN3KE_DEV_PRIVATE_TO_HW(ethdev);
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	int ret = 0;
+
+	if (ethdev == NULL)
+		return -EINVAL;
+
+	if (hw->acc_flow)
+		switch (filter_type) {
+		case RTE_ETH_FILTER_GENERIC:
+			if (filter_op != RTE_ETH_FILTER_GET)
+				return -EINVAL;
+			*(const void **)arg = NULL;
+			break;
+		default:
+			IPN3KE_AFU_PMD_WARN("Filter type (%d) not supported",
+					filter_type);
+			ret = -EINVAL;
+			break;
+		}
+	else if (rpst->i40e_pf_eth)
+		(*rpst->i40e_pf_eth->dev_ops->filter_ctrl)(ethdev,
+							filter_type,
+							filter_op,
+							arg);
+	else
+		return -EINVAL;
+
+	return ret;
+}
+
+struct eth_dev_ops ipn3ke_rpst_dev_ops = {
+	.dev_infos_get        = ipn3ke_rpst_dev_infos_get,
+
+	.dev_configure        = ipn3ke_rpst_dev_configure,
+	.dev_start            = ipn3ke_rpst_dev_start,
+	.dev_stop             = ipn3ke_rpst_dev_stop,
+	.dev_close            = ipn3ke_rpst_dev_close,
+	.dev_reset            = ipn3ke_rpst_dev_reset,
+
+	.stats_get            = ipn3ke_rpst_stats_get,
+	.xstats_get           = ipn3ke_rpst_xstats_get,
+	.xstats_get_names     = ipn3ke_rpst_xstats_get_names,
+	.stats_reset          = ipn3ke_rpst_stats_reset,
+	.xstats_reset         = ipn3ke_rpst_stats_reset,
+
+	.filter_ctrl          = ipn3ke_afu_filter_ctrl,
+
+	.rx_queue_start       = ipn3ke_rpst_rx_queue_start,
+	.rx_queue_stop        = ipn3ke_rpst_rx_queue_stop,
+	.tx_queue_start       = ipn3ke_rpst_tx_queue_start,
+	.tx_queue_stop        = ipn3ke_rpst_tx_queue_stop,
+	.rx_queue_setup       = ipn3ke_rpst_rx_queue_setup,
+	.rx_queue_release     = ipn3ke_rpst_rx_queue_release,
+	.tx_queue_setup       = ipn3ke_rpst_tx_queue_setup,
+	.tx_queue_release     = ipn3ke_rpst_tx_queue_release,
+
+	.dev_set_link_up      = ipn3ke_rpst_dev_set_link_up,
+	.dev_set_link_down    = ipn3ke_rpst_dev_set_link_down,
+	.link_update          = ipn3ke_rpst_link_update,
+
+	.promiscuous_enable   = ipn3ke_rpst_promiscuous_enable,
+	.promiscuous_disable  = ipn3ke_rpst_promiscuous_disable,
+	.allmulticast_enable  = ipn3ke_rpst_allmulticast_enable,
+	.allmulticast_disable = ipn3ke_rpst_allmulticast_disable,
+	.mac_addr_set         = ipn3ke_rpst_mac_addr_set,
+	.mtu_set              = ipn3ke_rpst_mtu_set,
+
+	.tm_ops_get           = NULL,
+};
+
+static uint16_t ipn3ke_rpst_recv_pkts(__rte_unused void *rx_q,
+	__rte_unused struct rte_mbuf **rx_pkts, __rte_unused uint16_t nb_pkts)
+{
+	return 0;
+}
+
+static uint16_t
+ipn3ke_rpst_xmit_pkts(__rte_unused void *tx_queue,
+	__rte_unused struct rte_mbuf **tx_pkts, __rte_unused uint16_t nb_pkts)
+{
+	return 0;
+}
+
+int
+ipn3ke_rpst_init(struct rte_eth_dev *ethdev, void *init_params)
+{
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+	struct ipn3ke_rpst *representor_param =
+			(struct ipn3ke_rpst *)init_params;
+
+	if (representor_param->port_id >= representor_param->hw->port_num)
+		return -ENODEV;
+
+	rpst->ethdev = ethdev;
+	rpst->switch_domain_id = representor_param->switch_domain_id;
+	rpst->port_id = representor_param->port_id;
+	rpst->hw = representor_param->hw;
+	rpst->i40e_pf_eth = NULL;
+	rpst->i40e_pf_eth_port_id = 0xFFFF;
+
+	ethdev->data->mac_addrs = rte_zmalloc("ipn3ke", ETHER_ADDR_LEN, 0);
+	if (!ethdev->data->mac_addrs) {
+		IPN3KE_AFU_PMD_ERR("Failed to "
+			"allocated memory for storing mac address");
+		return -ENODEV;
+	}
+
+	/** representor shares the same driver as it's PF device */
+	/**
+	 * ethdev->device->driver = rpst->hw->eth_dev->device->driver;
+	 */
+
+	/* Set representor device ops */
+	ethdev->dev_ops = &ipn3ke_rpst_dev_ops;
+
+	/* No data-path, but need stub Rx/Tx functions to avoid crash
+	 * when testing with the likes of testpmd.
+	 */
+	ethdev->rx_pkt_burst = ipn3ke_rpst_recv_pkts;
+	ethdev->tx_pkt_burst = ipn3ke_rpst_xmit_pkts;
+
+	ethdev->data->nb_rx_queues = 1;
+	ethdev->data->nb_tx_queues = 1;
+
+	ethdev->data->mac_addrs = rte_zmalloc("ipn3ke_afu_representor",
+						ETHER_ADDR_LEN,
+						0);
+	if (!ethdev->data->mac_addrs) {
+		IPN3KE_AFU_PMD_ERR("Failed to "
+			"allocated memory for storing mac address");
+		return -ENODEV;
+	}
+
+	ethdev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
+
+	rte_spinlock_lock(&ipn3ke_link_notify_list_lk);
+	TAILQ_INSERT_TAIL(&ipn3ke_rpst_list, rpst, next);
+	ipn3ke_rpst_scan_num++;
+	ipn3ke_rpst_scan_check();
+	rte_spinlock_unlock(&ipn3ke_link_notify_list_lk);
+
+	return 0;
+}
+
+int
+ipn3ke_rpst_uninit(struct rte_eth_dev *ethdev)
+{
+	struct ipn3ke_rpst *rpst = IPN3KE_DEV_PRIVATE_TO_RPST(ethdev);
+
+	rte_spinlock_lock(&ipn3ke_link_notify_list_lk);
+	TAILQ_REMOVE(&ipn3ke_rpst_list, rpst, next);
+	ipn3ke_rpst_scan_num--;
+	ipn3ke_rpst_scan_check();
+	rte_spinlock_unlock(&ipn3ke_link_notify_list_lk);
+
+	return 0;
+}
diff --git a/drivers/net/ipn3ke/meson.build b/drivers/net/ipn3ke/meson.build
index e983bb3..7ba4ca9 100644
--- a/drivers/net/ipn3ke/meson.build
+++ b/drivers/net/ipn3ke/meson.build
@@ -2,5 +2,6 @@ 
 # Copyright(c) 2019 Intel Corporation
 
 allow_experimental_apis = true
-sources += files('ipn3ke_ethdev.c')
+sources += files('ipn3ke_ethdev.c',
+	'ipn3ke_representor.c')
 deps += ['bus_ifpga', 'sched']