Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

5 files changed, 1442 insertions, 0 deletions

diff --git a/src/spdk/dpdk/drivers/net/af_xdp/Makefile b/src/spdk/dpdk/drivers/net/af_xdp/Makefile
new file mode 100644
index 000000000..55db6085a
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/af_xdp/Makefile
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2019 Intel Corporation
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_af_xdp.a
+
+EXPORT_MAP := rte_pmd_af_xdp_version.map
+
+CFLAGS += -O3
+
+CFLAGS += $(WERROR_FLAGS)
+LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool -lrte_ring
+LDLIBS += -lrte_ethdev -lrte_net -lrte_kvargs
+LDLIBS += -lrte_bus_vdev
+LDLIBS += $(shell command -v pkg-config > /dev/null 2>&1 && pkg-config --libs libbpf || echo "-lbpf")
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_AF_XDP) += rte_eth_af_xdp.c
+
+include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/src/spdk/dpdk/drivers/net/af_xdp/af_xdp_deps.h b/src/spdk/dpdk/drivers/net/af_xdp/af_xdp_deps.h
new file mode 100644
index 000000000..18416d094
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/af_xdp/af_xdp_deps.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation.
+ */
+
+#ifndef AF_XDP_DEPS_H_
+#define AF_XDP_DEPS_H_
+
+#include <rte_atomic.h>
+#include <rte_branch_prediction.h>
+
+/* This is to fix the xsk.h's dependency on asm/barrier.h */
+#define smp_rmb() rte_rmb()
+#define smp_wmb() rte_wmb()
+
+#endif /* AF_XDP_DEPS_H_ */
diff --git a/src/spdk/dpdk/drivers/net/af_xdp/meson.build b/src/spdk/dpdk/drivers/net/af_xdp/meson.build
new file mode 100644
index 000000000..307aa0e38
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/af_xdp/meson.build
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2019 Intel Corporation
+
+sources = files('rte_eth_af_xdp.c')
+
+bpf_dep = dependency('libbpf', required: false)
+if not bpf_dep.found()
+	bpf_dep = cc.find_library('bpf', required: false)
+endif
+
+if bpf_dep.found() and cc.has_header('bpf/xsk.h') and cc.has_header('linux/if_xdp.h')
+	ext_deps += bpf_dep
+else
+	build = false
+	reason = 'missing dependency, "libbpf"'
+endif
diff --git a/src/spdk/dpdk/drivers/net/af_xdp/rte_eth_af_xdp.c b/src/spdk/dpdk/drivers/net/af_xdp/rte_eth_af_xdp.c
new file mode 100644
index 000000000..06124ba78
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/af_xdp/rte_eth_af_xdp.c
@@ -0,0 +1,1382 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2019 Intel Corporation.
+ */
+#include <unistd.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <poll.h>
+#include <netinet/in.h>
+#include <net/if.h>
+#include <sys/socket.h>
+#include <sys/ioctl.h>
+#include <linux/if_ether.h>
+#include <linux/if_xdp.h>
+#include <linux/if_link.h>
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+#include "af_xdp_deps.h"
+#include <bpf/xsk.h>
+
+#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
+#include <rte_ethdev_vdev.h>
+#include <rte_kvargs.h>
+#include <rte_bus_vdev.h>
+#include <rte_string_fns.h>
+#include <rte_branch_prediction.h>
+#include <rte_common.h>
+#include <rte_dev.h>
+#include <rte_eal.h>
+#include <rte_ether.h>
+#include <rte_lcore.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_mempool.h>
+#include <rte_mbuf.h>
+#include <rte_malloc.h>
+#include <rte_ring.h>
+
+#ifndef SOL_XDP
+#define SOL_XDP 283
+#endif
+
+#ifndef AF_XDP
+#define AF_XDP 44
+#endif
+
+#ifndef PF_XDP
+#define PF_XDP AF_XDP
+#endif
+
+static int af_xdp_logtype;
+
+#define AF_XDP_LOG(level, fmt, args...)			\
+	rte_log(RTE_LOG_ ## level, af_xdp_logtype,	\
+		"%s(): " fmt, __func__, ##args)
+
+#define ETH_AF_XDP_FRAME_SIZE		2048
+#define ETH_AF_XDP_NUM_BUFFERS		4096
+#define ETH_AF_XDP_DFLT_NUM_DESCS	XSK_RING_CONS__DEFAULT_NUM_DESCS
+#define ETH_AF_XDP_DFLT_START_QUEUE_IDX	0
+#define ETH_AF_XDP_DFLT_QUEUE_COUNT	1
+
+#define ETH_AF_XDP_RX_BATCH_SIZE	32
+#define ETH_AF_XDP_TX_BATCH_SIZE	32
+
+
+struct xsk_umem_info {
+	struct xsk_ring_prod fq;
+	struct xsk_ring_cons cq;
+	struct xsk_umem *umem;
+	struct rte_ring *buf_ring;
+	const struct rte_memzone *mz;
+	struct rte_mempool *mb_pool;
+	void *buffer;
+};
+
+struct rx_stats {
+	uint64_t rx_pkts;
+	uint64_t rx_bytes;
+	uint64_t rx_dropped;
+};
+
+struct pkt_rx_queue {
+	struct xsk_ring_cons rx;
+	struct xsk_umem_info *umem;
+	struct xsk_socket *xsk;
+	struct rte_mempool *mb_pool;
+
+	struct rx_stats stats;
+
+	struct pkt_tx_queue *pair;
+	struct pollfd fds[1];
+	int xsk_queue_idx;
+};
+
+struct tx_stats {
+	uint64_t tx_pkts;
+	uint64_t tx_bytes;
+	uint64_t tx_dropped;
+};
+
+struct pkt_tx_queue {
+	struct xsk_ring_prod tx;
+	struct xsk_umem_info *umem;
+
+	struct tx_stats stats;
+
+	struct pkt_rx_queue *pair;
+	int xsk_queue_idx;
+};
+
+struct pmd_internals {
+	int if_index;
+	char if_name[IFNAMSIZ];
+	int start_queue_idx;
+	int queue_cnt;
+	int max_queue_cnt;
+	int combined_queue_cnt;
+
+	struct rte_ether_addr eth_addr;
+
+	struct pkt_rx_queue *rx_queues;
+	struct pkt_tx_queue *tx_queues;
+};
+
+#define ETH_AF_XDP_IFACE_ARG			"iface"
+#define ETH_AF_XDP_START_QUEUE_ARG		"start_queue"
+#define ETH_AF_XDP_QUEUE_COUNT_ARG		"queue_count"
+
+static const char * const valid_arguments[] = {
+	ETH_AF_XDP_IFACE_ARG,
+	ETH_AF_XDP_START_QUEUE_ARG,
+	ETH_AF_XDP_QUEUE_COUNT_ARG,
+	NULL
+};
+
+static const struct rte_eth_link pmd_link = {
+	.link_speed = ETH_SPEED_NUM_10G,
+	.link_duplex = ETH_LINK_FULL_DUPLEX,
+	.link_status = ETH_LINK_DOWN,
+	.link_autoneg = ETH_LINK_AUTONEG
+};
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+static inline int
+reserve_fill_queue_zc(struct xsk_umem_info *umem, uint16_t reserve_size,
+		      struct rte_mbuf **bufs)
+{
+	struct xsk_ring_prod *fq = &umem->fq;
+	uint32_t idx;
+	uint16_t i;
+
+	if (unlikely(!xsk_ring_prod__reserve(fq, reserve_size, &idx))) {
+		for (i = 0; i < reserve_size; i++)
+			rte_pktmbuf_free(bufs[i]);
+		AF_XDP_LOG(DEBUG, "Failed to reserve enough fq descs.\n");
+		return -1;
+	}
+
+	for (i = 0; i < reserve_size; i++) {
+		__u64 *fq_addr;
+		uint64_t addr;
+
+		fq_addr = xsk_ring_prod__fill_addr(fq, idx++);
+		addr = (uint64_t)bufs[i] - (uint64_t)umem->buffer -
+				umem->mb_pool->header_size;
+		*fq_addr = addr;
+	}
+
+	xsk_ring_prod__submit(fq, reserve_size);
+
+	return 0;
+}
+#else
+static inline int
+reserve_fill_queue_cp(struct xsk_umem_info *umem, uint16_t reserve_size,
+		      struct rte_mbuf **bufs __rte_unused)
+{
+	struct xsk_ring_prod *fq = &umem->fq;
+	void *addrs[reserve_size];
+	uint32_t idx;
+	uint16_t i;
+
+	if (rte_ring_dequeue_bulk(umem->buf_ring, addrs, reserve_size, NULL)
+		    != reserve_size) {
+		AF_XDP_LOG(DEBUG, "Failed to get enough buffers for fq.\n");
+		return -1;
+	}
+
+	if (unlikely(!xsk_ring_prod__reserve(fq, reserve_size, &idx))) {
+		AF_XDP_LOG(DEBUG, "Failed to reserve enough fq descs.\n");
+		rte_ring_enqueue_bulk(umem->buf_ring, addrs,
+				reserve_size, NULL);
+		return -1;
+	}
+
+	for (i = 0; i < reserve_size; i++) {
+		__u64 *fq_addr;
+
+		fq_addr = xsk_ring_prod__fill_addr(fq, idx++);
+		*fq_addr = (uint64_t)addrs[i];
+	}
+
+	xsk_ring_prod__submit(fq, reserve_size);
+
+	return 0;
+}
+#endif
+
+static inline int
+reserve_fill_queue(struct xsk_umem_info *umem, uint16_t reserve_size,
+		   struct rte_mbuf **bufs)
+{
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	return reserve_fill_queue_zc(umem, reserve_size, bufs);
+#else
+	return reserve_fill_queue_cp(umem, reserve_size, bufs);
+#endif
+}
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+static uint16_t
+af_xdp_rx_zc(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+	struct pkt_rx_queue *rxq = queue;
+	struct xsk_ring_cons *rx = &rxq->rx;
+	struct xsk_umem_info *umem = rxq->umem;
+	uint32_t idx_rx = 0;
+	unsigned long rx_bytes = 0;
+	int rcvd, i;
+	struct rte_mbuf *fq_bufs[ETH_AF_XDP_RX_BATCH_SIZE];
+
+	/* allocate bufs for fill queue replenishment after rx */
+	if (rte_pktmbuf_alloc_bulk(umem->mb_pool, fq_bufs, nb_pkts)) {
+		AF_XDP_LOG(DEBUG,
+			"Failed to get enough buffers for fq.\n");
+		return -1;
+	}
+
+	rcvd = xsk_ring_cons__peek(rx, nb_pkts, &idx_rx);
+
+	if (rcvd == 0) {
+#if defined(XDP_USE_NEED_WAKEUP)
+		if (xsk_ring_prod__needs_wakeup(&umem->fq))
+			(void)poll(rxq->fds, 1, 1000);
+#endif
+
+		goto out;
+	}
+
+	for (i = 0; i < rcvd; i++) {
+		const struct xdp_desc *desc;
+		uint64_t addr;
+		uint32_t len;
+		uint64_t offset;
+
+		desc = xsk_ring_cons__rx_desc(rx, idx_rx++);
+		addr = desc->addr;
+		len = desc->len;
+
+		offset = xsk_umem__extract_offset(addr);
+		addr = xsk_umem__extract_addr(addr);
+
+		bufs[i] = (struct rte_mbuf *)
+				xsk_umem__get_data(umem->buffer, addr +
+					umem->mb_pool->header_size);
+		bufs[i]->data_off = offset - sizeof(struct rte_mbuf) -
+			rte_pktmbuf_priv_size(umem->mb_pool) -
+			umem->mb_pool->header_size;
+
+		rte_pktmbuf_pkt_len(bufs[i]) = len;
+		rte_pktmbuf_data_len(bufs[i]) = len;
+		rx_bytes += len;
+	}
+
+	xsk_ring_cons__release(rx, rcvd);
+
+	(void)reserve_fill_queue(umem, rcvd, fq_bufs);
+
+	/* statistics */
+	rxq->stats.rx_pkts += rcvd;
+	rxq->stats.rx_bytes += rx_bytes;
+
+out:
+	if (rcvd != nb_pkts)
+		rte_mempool_put_bulk(umem->mb_pool, (void **)&fq_bufs[rcvd],
+				     nb_pkts - rcvd);
+
+	return rcvd;
+}
+#else
+static uint16_t
+af_xdp_rx_cp(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+	struct pkt_rx_queue *rxq = queue;
+	struct xsk_ring_cons *rx = &rxq->rx;
+	struct xsk_umem_info *umem = rxq->umem;
+	struct xsk_ring_prod *fq = &umem->fq;
+	uint32_t idx_rx = 0;
+	unsigned long rx_bytes = 0;
+	int rcvd, i;
+	uint32_t free_thresh = fq->size >> 1;
+	struct rte_mbuf *mbufs[ETH_AF_XDP_RX_BATCH_SIZE];
+
+	if (unlikely(rte_pktmbuf_alloc_bulk(rxq->mb_pool, mbufs, nb_pkts) != 0))
+		return 0;
+
+	rcvd = xsk_ring_cons__peek(rx, nb_pkts, &idx_rx);
+	if (rcvd == 0) {
+#if defined(XDP_USE_NEED_WAKEUP)
+		if (xsk_ring_prod__needs_wakeup(fq))
+			(void)poll(rxq->fds, 1, 1000);
+#endif
+
+		goto out;
+	}
+
+	if (xsk_prod_nb_free(fq, free_thresh) >= free_thresh)
+		(void)reserve_fill_queue(umem, ETH_AF_XDP_RX_BATCH_SIZE, NULL);
+
+	for (i = 0; i < rcvd; i++) {
+		const struct xdp_desc *desc;
+		uint64_t addr;
+		uint32_t len;
+		void *pkt;
+
+		desc = xsk_ring_cons__rx_desc(rx, idx_rx++);
+		addr = desc->addr;
+		len = desc->len;
+		pkt = xsk_umem__get_data(rxq->umem->mz->addr, addr);
+
+		rte_memcpy(rte_pktmbuf_mtod(mbufs[i], void *), pkt, len);
+		rte_ring_enqueue(umem->buf_ring, (void *)addr);
+		rte_pktmbuf_pkt_len(mbufs[i]) = len;
+		rte_pktmbuf_data_len(mbufs[i]) = len;
+		rx_bytes += len;
+		bufs[i] = mbufs[i];
+	}
+
+	xsk_ring_cons__release(rx, rcvd);
+
+	/* statistics */
+	rxq->stats.rx_pkts += rcvd;
+	rxq->stats.rx_bytes += rx_bytes;
+
+out:
+	if (rcvd != nb_pkts)
+		rte_mempool_put_bulk(rxq->mb_pool, (void **)&mbufs[rcvd],
+				     nb_pkts - rcvd);
+
+	return rcvd;
+}
+#endif
+
+static uint16_t
+eth_af_xdp_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+	nb_pkts = RTE_MIN(nb_pkts, ETH_AF_XDP_RX_BATCH_SIZE);
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	return af_xdp_rx_zc(queue, bufs, nb_pkts);
+#else
+	return af_xdp_rx_cp(queue, bufs, nb_pkts);
+#endif
+}
+
+static void
+pull_umem_cq(struct xsk_umem_info *umem, int size)
+{
+	struct xsk_ring_cons *cq = &umem->cq;
+	size_t i, n;
+	uint32_t idx_cq = 0;
+
+	n = xsk_ring_cons__peek(cq, size, &idx_cq);
+
+	for (i = 0; i < n; i++) {
+		uint64_t addr;
+		addr = *xsk_ring_cons__comp_addr(cq, idx_cq++);
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+		addr = xsk_umem__extract_addr(addr);
+		rte_pktmbuf_free((struct rte_mbuf *)
+					xsk_umem__get_data(umem->buffer,
+					addr + umem->mb_pool->header_size));
+#else
+		rte_ring_enqueue(umem->buf_ring, (void *)addr);
+#endif
+	}
+
+	xsk_ring_cons__release(cq, n);
+}
+
+static void
+kick_tx(struct pkt_tx_queue *txq)
+{
+	struct xsk_umem_info *umem = txq->umem;
+
+#if defined(XDP_USE_NEED_WAKEUP)
+	if (xsk_ring_prod__needs_wakeup(&txq->tx))
+#endif
+		while (send(xsk_socket__fd(txq->pair->xsk), NULL,
+			    0, MSG_DONTWAIT) < 0) {
+			/* some thing unexpected */
+			if (errno != EBUSY && errno != EAGAIN && errno != EINTR)
+				break;
+
+			/* pull from completion queue to leave more space */
+			if (errno == EAGAIN)
+				pull_umem_cq(umem, ETH_AF_XDP_TX_BATCH_SIZE);
+		}
+#ifndef XDP_UMEM_UNALIGNED_CHUNK_FLAG
+	pull_umem_cq(umem, ETH_AF_XDP_TX_BATCH_SIZE);
+#endif
+}
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+static uint16_t
+af_xdp_tx_zc(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+	struct pkt_tx_queue *txq = queue;
+	struct xsk_umem_info *umem = txq->umem;
+	struct rte_mbuf *mbuf;
+	unsigned long tx_bytes = 0;
+	int i;
+	uint32_t idx_tx;
+	uint16_t count = 0;
+	struct xdp_desc *desc;
+	uint64_t addr, offset;
+
+	pull_umem_cq(umem, nb_pkts);
+
+	for (i = 0; i < nb_pkts; i++) {
+		mbuf = bufs[i];
+
+		if (mbuf->pool == umem->mb_pool) {
+			if (!xsk_ring_prod__reserve(&txq->tx, 1, &idx_tx)) {
+				kick_tx(txq);
+				goto out;
+			}
+			desc = xsk_ring_prod__tx_desc(&txq->tx, idx_tx);
+			desc->len = mbuf->pkt_len;
+			addr = (uint64_t)mbuf - (uint64_t)umem->buffer -
+					umem->mb_pool->header_size;
+			offset = rte_pktmbuf_mtod(mbuf, uint64_t) -
+					(uint64_t)mbuf +
+					umem->mb_pool->header_size;
+			offset = offset << XSK_UNALIGNED_BUF_OFFSET_SHIFT;
+			desc->addr = addr | offset;
+			count++;
+		} else {
+			struct rte_mbuf *local_mbuf =
+					rte_pktmbuf_alloc(umem->mb_pool);
+			void *pkt;
+
+			if (local_mbuf == NULL)
+				goto out;
+
+			if (!xsk_ring_prod__reserve(&txq->tx, 1, &idx_tx)) {
+				rte_pktmbuf_free(local_mbuf);
+				kick_tx(txq);
+				goto out;
+			}
+
+			desc = xsk_ring_prod__tx_desc(&txq->tx, idx_tx);
+			desc->len = mbuf->pkt_len;
+
+			addr = (uint64_t)local_mbuf - (uint64_t)umem->buffer -
+					umem->mb_pool->header_size;
+			offset = rte_pktmbuf_mtod(local_mbuf, uint64_t) -
+					(uint64_t)local_mbuf +
+					umem->mb_pool->header_size;
+			pkt = xsk_umem__get_data(umem->buffer, addr + offset);
+			offset = offset << XSK_UNALIGNED_BUF_OFFSET_SHIFT;
+			desc->addr = addr | offset;
+			rte_memcpy(pkt, rte_pktmbuf_mtod(mbuf, void *),
+					desc->len);
+			rte_pktmbuf_free(mbuf);
+			count++;
+		}
+
+		tx_bytes += mbuf->pkt_len;
+	}
+
+	kick_tx(txq);
+
+out:
+	xsk_ring_prod__submit(&txq->tx, count);
+
+	txq->stats.tx_pkts += count;
+	txq->stats.tx_bytes += tx_bytes;
+	txq->stats.tx_dropped += nb_pkts - count;
+
+	return count;
+}
+#else
+static uint16_t
+af_xdp_tx_cp(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+	struct pkt_tx_queue *txq = queue;
+	struct xsk_umem_info *umem = txq->umem;
+	struct rte_mbuf *mbuf;
+	void *addrs[ETH_AF_XDP_TX_BATCH_SIZE];
+	unsigned long tx_bytes = 0;
+	int i;
+	uint32_t idx_tx;
+
+	nb_pkts = RTE_MIN(nb_pkts, ETH_AF_XDP_TX_BATCH_SIZE);
+
+	pull_umem_cq(umem, nb_pkts);
+
+	nb_pkts = rte_ring_dequeue_bulk(umem->buf_ring, addrs,
+					nb_pkts, NULL);
+	if (nb_pkts == 0)
+		return 0;
+
+	if (xsk_ring_prod__reserve(&txq->tx, nb_pkts, &idx_tx) != nb_pkts) {
+		kick_tx(txq);
+		rte_ring_enqueue_bulk(umem->buf_ring, addrs, nb_pkts, NULL);
+		return 0;
+	}
+
+	for (i = 0; i < nb_pkts; i++) {
+		struct xdp_desc *desc;
+		void *pkt;
+
+		desc = xsk_ring_prod__tx_desc(&txq->tx, idx_tx + i);
+		mbuf = bufs[i];
+		desc->len = mbuf->pkt_len;
+
+		desc->addr = (uint64_t)addrs[i];
+		pkt = xsk_umem__get_data(umem->mz->addr,
+					 desc->addr);
+		rte_memcpy(pkt, rte_pktmbuf_mtod(mbuf, void *), desc->len);
+		tx_bytes += mbuf->pkt_len;
+		rte_pktmbuf_free(mbuf);
+	}
+
+	xsk_ring_prod__submit(&txq->tx, nb_pkts);
+
+	kick_tx(txq);
+
+	txq->stats.tx_pkts += nb_pkts;
+	txq->stats.tx_bytes += tx_bytes;
+
+	return nb_pkts;
+}
+#endif
+
+static uint16_t
+eth_af_xdp_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts)
+{
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	return af_xdp_tx_zc(queue, bufs, nb_pkts);
+#else
+	return af_xdp_tx_cp(queue, bufs, nb_pkts);
+#endif
+}
+
+static int
+eth_dev_start(struct rte_eth_dev *dev)
+{
+	dev->data->dev_link.link_status = ETH_LINK_UP;
+
+	return 0;
+}
+
+/* This function gets called when the current port gets stopped. */
+static void
+eth_dev_stop(struct rte_eth_dev *dev)
+{
+	dev->data->dev_link.link_status = ETH_LINK_DOWN;
+}
+
+static int
+eth_dev_configure(struct rte_eth_dev *dev)
+{
+	/* rx/tx must be paired */
+	if (dev->data->nb_rx_queues != dev->data->nb_tx_queues)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int
+eth_dev_info(struct rte_eth_dev *dev, struct rte_eth_dev_info *dev_info)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+
+	dev_info->if_index = internals->if_index;
+	dev_info->max_mac_addrs = 1;
+	dev_info->max_rx_pktlen = ETH_FRAME_LEN;
+	dev_info->max_rx_queues = internals->queue_cnt;
+	dev_info->max_tx_queues = internals->queue_cnt;
+
+	dev_info->min_mtu = RTE_ETHER_MIN_MTU;
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	dev_info->max_mtu = getpagesize() -
+				sizeof(struct rte_mempool_objhdr) -
+				sizeof(struct rte_mbuf) -
+				RTE_PKTMBUF_HEADROOM - XDP_PACKET_HEADROOM;
+#else
+	dev_info->max_mtu = ETH_AF_XDP_FRAME_SIZE - XDP_PACKET_HEADROOM;
+#endif
+
+	dev_info->default_rxportconf.nb_queues = 1;
+	dev_info->default_txportconf.nb_queues = 1;
+	dev_info->default_rxportconf.ring_size = ETH_AF_XDP_DFLT_NUM_DESCS;
+	dev_info->default_txportconf.ring_size = ETH_AF_XDP_DFLT_NUM_DESCS;
+
+	return 0;
+}
+
+static int
+eth_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *stats)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	struct xdp_statistics xdp_stats;
+	struct pkt_rx_queue *rxq;
+	struct pkt_tx_queue *txq;
+	socklen_t optlen;
+	int i, ret;
+
+	for (i = 0; i < dev->data->nb_rx_queues; i++) {
+		optlen = sizeof(struct xdp_statistics);
+		rxq = &internals->rx_queues[i];
+		txq = rxq->pair;
+		stats->q_ipackets[i] = rxq->stats.rx_pkts;
+		stats->q_ibytes[i] = rxq->stats.rx_bytes;
+
+		stats->q_opackets[i] = txq->stats.tx_pkts;
+		stats->q_obytes[i] = txq->stats.tx_bytes;
+
+		stats->ipackets += stats->q_ipackets[i];
+		stats->ibytes += stats->q_ibytes[i];
+		stats->imissed += rxq->stats.rx_dropped;
+		stats->oerrors += txq->stats.tx_dropped;
+		ret = getsockopt(xsk_socket__fd(rxq->xsk), SOL_XDP,
+				XDP_STATISTICS, &xdp_stats, &optlen);
+		if (ret != 0) {
+			AF_XDP_LOG(ERR, "getsockopt() failed for XDP_STATISTICS.\n");
+			return -1;
+		}
+		stats->imissed += xdp_stats.rx_dropped;
+
+		stats->opackets += stats->q_opackets[i];
+		stats->obytes += stats->q_obytes[i];
+	}
+
+	return 0;
+}
+
+static int
+eth_stats_reset(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	int i;
+
+	for (i = 0; i < internals->queue_cnt; i++) {
+		memset(&internals->rx_queues[i].stats, 0,
+					sizeof(struct rx_stats));
+		memset(&internals->tx_queues[i].stats, 0,
+					sizeof(struct tx_stats));
+	}
+
+	return 0;
+}
+
+static void
+remove_xdp_program(struct pmd_internals *internals)
+{
+	uint32_t curr_prog_id = 0;
+
+	if (bpf_get_link_xdp_id(internals->if_index, &curr_prog_id,
+				XDP_FLAGS_UPDATE_IF_NOEXIST)) {
+		AF_XDP_LOG(ERR, "bpf_get_link_xdp_id failed\n");
+		return;
+	}
+	bpf_set_link_xdp_fd(internals->if_index, -1,
+			XDP_FLAGS_UPDATE_IF_NOEXIST);
+}
+
+static void
+xdp_umem_destroy(struct xsk_umem_info *umem)
+{
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	rte_mempool_free(umem->mb_pool);
+	umem->mb_pool = NULL;
+#else
+	rte_memzone_free(umem->mz);
+	umem->mz = NULL;
+
+	rte_ring_free(umem->buf_ring);
+	umem->buf_ring = NULL;
+#endif
+
+	rte_free(umem);
+	umem = NULL;
+}
+
+static void
+eth_dev_close(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	struct pkt_rx_queue *rxq;
+	int i;
+
+	AF_XDP_LOG(INFO, "Closing AF_XDP ethdev on numa socket %u\n",
+		rte_socket_id());
+
+	for (i = 0; i < internals->queue_cnt; i++) {
+		rxq = &internals->rx_queues[i];
+		if (rxq->umem == NULL)
+			break;
+		xsk_socket__delete(rxq->xsk);
+		(void)xsk_umem__delete(rxq->umem->umem);
+		xdp_umem_destroy(rxq->umem);
+
+		/* free pkt_tx_queue */
+		rte_free(rxq->pair);
+		rte_free(rxq);
+	}
+
+	/*
+	 * MAC is not allocated dynamically, setting it to NULL would prevent
+	 * from releasing it in rte_eth_dev_release_port.
+	 */
+	dev->data->mac_addrs = NULL;
+
+	remove_xdp_program(internals);
+}
+
+static void
+eth_queue_release(void *q __rte_unused)
+{
+}
+
+static int
+eth_link_update(struct rte_eth_dev *dev __rte_unused,
+		int wait_to_complete __rte_unused)
+{
+	return 0;
+}
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+static inline uint64_t get_base_addr(struct rte_mempool *mp)
+{
+	struct rte_mempool_memhdr *memhdr;
+
+	memhdr = STAILQ_FIRST(&mp->mem_list);
+	return (uint64_t)memhdr->addr & ~(getpagesize() - 1);
+}
+
+static struct
+xsk_umem_info *xdp_umem_configure(struct pmd_internals *internals __rte_unused,
+				  struct pkt_rx_queue *rxq)
+{
+	struct xsk_umem_info *umem;
+	int ret;
+	struct xsk_umem_config usr_config = {
+		.fill_size = ETH_AF_XDP_DFLT_NUM_DESCS,
+		.comp_size = ETH_AF_XDP_DFLT_NUM_DESCS,
+		.flags = XDP_UMEM_UNALIGNED_CHUNK_FLAG};
+	void *base_addr = NULL;
+	struct rte_mempool *mb_pool = rxq->mb_pool;
+
+	usr_config.frame_size = rte_mempool_calc_obj_size(mb_pool->elt_size,
+								mb_pool->flags,
+								NULL);
+	usr_config.frame_headroom = mb_pool->header_size +
+					sizeof(struct rte_mbuf) +
+					rte_pktmbuf_priv_size(mb_pool) +
+					RTE_PKTMBUF_HEADROOM;
+
+	umem = rte_zmalloc_socket("umem", sizeof(*umem), 0, rte_socket_id());
+	if (umem == NULL) {
+		AF_XDP_LOG(ERR, "Failed to allocate umem info");
+		return NULL;
+	}
+
+	umem->mb_pool = mb_pool;
+	base_addr = (void *)get_base_addr(mb_pool);
+
+	ret = xsk_umem__create(&umem->umem, base_addr,
+			       mb_pool->populated_size * usr_config.frame_size,
+			       &umem->fq, &umem->cq,
+			       &usr_config);
+
+	if (ret) {
+		AF_XDP_LOG(ERR, "Failed to create umem");
+		goto err;
+	}
+	umem->buffer = base_addr;
+
+#else
+static struct
+xsk_umem_info *xdp_umem_configure(struct pmd_internals *internals,
+				  struct pkt_rx_queue *rxq)
+{
+	struct xsk_umem_info *umem;
+	const struct rte_memzone *mz;
+	struct xsk_umem_config usr_config = {
+		.fill_size = ETH_AF_XDP_DFLT_NUM_DESCS,
+		.comp_size = ETH_AF_XDP_DFLT_NUM_DESCS,
+		.frame_size = ETH_AF_XDP_FRAME_SIZE,
+		.frame_headroom = 0 };
+	char ring_name[RTE_RING_NAMESIZE];
+	char mz_name[RTE_MEMZONE_NAMESIZE];
+	int ret;
+	uint64_t i;
+
+	umem = rte_zmalloc_socket("umem", sizeof(*umem), 0, rte_socket_id());
+	if (umem == NULL) {
+		AF_XDP_LOG(ERR, "Failed to allocate umem info");
+		return NULL;
+	}
+
+	snprintf(ring_name, sizeof(ring_name), "af_xdp_ring_%s_%u",
+		       internals->if_name, rxq->xsk_queue_idx);
+	umem->buf_ring = rte_ring_create(ring_name,
+					 ETH_AF_XDP_NUM_BUFFERS,
+					 rte_socket_id(),
+					 RING_F_SP_ENQ | RING_F_SC_DEQ);
+	if (umem->buf_ring == NULL) {
+		AF_XDP_LOG(ERR, "Failed to create rte_ring\n");
+		goto err;
+	}
+
+	for (i = 0; i < ETH_AF_XDP_NUM_BUFFERS; i++)
+		rte_ring_enqueue(umem->buf_ring,
+				 (void *)(i * ETH_AF_XDP_FRAME_SIZE));
+
+	snprintf(mz_name, sizeof(mz_name), "af_xdp_umem_%s_%u",
+		       internals->if_name, rxq->xsk_queue_idx);
+	mz = rte_memzone_reserve_aligned(mz_name,
+			ETH_AF_XDP_NUM_BUFFERS * ETH_AF_XDP_FRAME_SIZE,
+			rte_socket_id(), RTE_MEMZONE_IOVA_CONTIG,
+			getpagesize());
+	if (mz == NULL) {
+		AF_XDP_LOG(ERR, "Failed to reserve memzone for af_xdp umem.\n");
+		goto err;
+	}
+
+	ret = xsk_umem__create(&umem->umem, mz->addr,
+			       ETH_AF_XDP_NUM_BUFFERS * ETH_AF_XDP_FRAME_SIZE,
+			       &umem->fq, &umem->cq,
+			       &usr_config);
+
+	if (ret) {
+		AF_XDP_LOG(ERR, "Failed to create umem");
+		goto err;
+	}
+	umem->mz = mz;
+
+#endif
+	return umem;
+
+err:
+	xdp_umem_destroy(umem);
+	return NULL;
+}
+
+static int
+xsk_configure(struct pmd_internals *internals, struct pkt_rx_queue *rxq,
+	      int ring_size)
+{
+	struct xsk_socket_config cfg;
+	struct pkt_tx_queue *txq = rxq->pair;
+	int ret = 0;
+	int reserve_size = ETH_AF_XDP_DFLT_NUM_DESCS / 2;
+	struct rte_mbuf *fq_bufs[reserve_size];
+
+	rxq->umem = xdp_umem_configure(internals, rxq);
+	if (rxq->umem == NULL)
+		return -ENOMEM;
+	txq->umem = rxq->umem;
+
+	cfg.rx_size = ring_size;
+	cfg.tx_size = ring_size;
+	cfg.libbpf_flags = 0;
+	cfg.xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
+	cfg.bind_flags = 0;
+
+#if defined(XDP_USE_NEED_WAKEUP)
+	cfg.bind_flags |= XDP_USE_NEED_WAKEUP;
+#endif
+
+	ret = xsk_socket__create(&rxq->xsk, internals->if_name,
+			rxq->xsk_queue_idx, rxq->umem->umem, &rxq->rx,
+			&txq->tx, &cfg);
+	if (ret) {
+		AF_XDP_LOG(ERR, "Failed to create xsk socket.\n");
+		goto err;
+	}
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	if (rte_pktmbuf_alloc_bulk(rxq->umem->mb_pool, fq_bufs, reserve_size)) {
+		AF_XDP_LOG(DEBUG, "Failed to get enough buffers for fq.\n");
+		goto err;
+	}
+#endif
+	ret = reserve_fill_queue(rxq->umem, reserve_size, fq_bufs);
+	if (ret) {
+		xsk_socket__delete(rxq->xsk);
+		AF_XDP_LOG(ERR, "Failed to reserve fill queue.\n");
+		goto err;
+	}
+
+	return 0;
+
+err:
+	xdp_umem_destroy(rxq->umem);
+
+	return ret;
+}
+
+static int
+eth_rx_queue_setup(struct rte_eth_dev *dev,
+		   uint16_t rx_queue_id,
+		   uint16_t nb_rx_desc,
+		   unsigned int socket_id __rte_unused,
+		   const struct rte_eth_rxconf *rx_conf __rte_unused,
+		   struct rte_mempool *mb_pool)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	struct pkt_rx_queue *rxq;
+	int ret;
+
+	rxq = &internals->rx_queues[rx_queue_id];
+
+	AF_XDP_LOG(INFO, "Set up rx queue, rx queue id: %d, xsk queue id: %d\n",
+		   rx_queue_id, rxq->xsk_queue_idx);
+
+#ifndef XDP_UMEM_UNALIGNED_CHUNK_FLAG
+	uint32_t buf_size, data_size;
+
+	/* Now get the space available for data in the mbuf */
+	buf_size = rte_pktmbuf_data_room_size(mb_pool) -
+		RTE_PKTMBUF_HEADROOM;
+	data_size = ETH_AF_XDP_FRAME_SIZE;
+
+	if (data_size > buf_size) {
+		AF_XDP_LOG(ERR, "%s: %d bytes will not fit in mbuf (%d bytes)\n",
+			dev->device->name, data_size, buf_size);
+		ret = -ENOMEM;
+		goto err;
+	}
+#endif
+
+	rxq->mb_pool = mb_pool;
+
+	if (xsk_configure(internals, rxq, nb_rx_desc)) {
+		AF_XDP_LOG(ERR, "Failed to configure xdp socket\n");
+		ret = -EINVAL;
+		goto err;
+	}
+
+	rxq->fds[0].fd = xsk_socket__fd(rxq->xsk);
+	rxq->fds[0].events = POLLIN;
+
+	dev->data->rx_queues[rx_queue_id] = rxq;
+	return 0;
+
+err:
+	return ret;
+}
+
+static int
+eth_tx_queue_setup(struct rte_eth_dev *dev,
+		   uint16_t tx_queue_id,
+		   uint16_t nb_tx_desc __rte_unused,
+		   unsigned int socket_id __rte_unused,
+		   const struct rte_eth_txconf *tx_conf __rte_unused)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	struct pkt_tx_queue *txq;
+
+	txq = &internals->tx_queues[tx_queue_id];
+
+	dev->data->tx_queues[tx_queue_id] = txq;
+	return 0;
+}
+
+static int
+eth_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+	struct ifreq ifr = { .ifr_mtu = mtu };
+	int ret;
+	int s;
+
+	s = socket(PF_INET, SOCK_DGRAM, 0);
+	if (s < 0)
+		return -EINVAL;
+
+	strlcpy(ifr.ifr_name, internals->if_name, IFNAMSIZ);
+	ret = ioctl(s, SIOCSIFMTU, &ifr);
+	close(s);
+
+	return (ret < 0) ? -errno : 0;
+}
+
+static int
+eth_dev_change_flags(char *if_name, uint32_t flags, uint32_t mask)
+{
+	struct ifreq ifr;
+	int ret = 0;
+	int s;
+
+	s = socket(PF_INET, SOCK_DGRAM, 0);
+	if (s < 0)
+		return -errno;
+
+	strlcpy(ifr.ifr_name, if_name, IFNAMSIZ);
+	if (ioctl(s, SIOCGIFFLAGS, &ifr) < 0) {
+		ret = -errno;
+		goto out;
+	}
+	ifr.ifr_flags &= mask;
+	ifr.ifr_flags |= flags;
+	if (ioctl(s, SIOCSIFFLAGS, &ifr) < 0) {
+		ret = -errno;
+		goto out;
+	}
+out:
+	close(s);
+	return ret;
+}
+
+static int
+eth_dev_promiscuous_enable(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+
+	return eth_dev_change_flags(internals->if_name, IFF_PROMISC, ~0);
+}
+
+static int
+eth_dev_promiscuous_disable(struct rte_eth_dev *dev)
+{
+	struct pmd_internals *internals = dev->data->dev_private;
+
+	return eth_dev_change_flags(internals->if_name, 0, ~IFF_PROMISC);
+}
+
+static const struct eth_dev_ops ops = {
+	.dev_start = eth_dev_start,
+	.dev_stop = eth_dev_stop,
+	.dev_close = eth_dev_close,
+	.dev_configure = eth_dev_configure,
+	.dev_infos_get = eth_dev_info,
+	.mtu_set = eth_dev_mtu_set,
+	.promiscuous_enable = eth_dev_promiscuous_enable,
+	.promiscuous_disable = eth_dev_promiscuous_disable,
+	.rx_queue_setup = eth_rx_queue_setup,
+	.tx_queue_setup = eth_tx_queue_setup,
+	.rx_queue_release = eth_queue_release,
+	.tx_queue_release = eth_queue_release,
+	.link_update = eth_link_update,
+	.stats_get = eth_stats_get,
+	.stats_reset = eth_stats_reset,
+};
+
+/** parse integer from integer argument */
+static int
+parse_integer_arg(const char *key __rte_unused,
+		  const char *value, void *extra_args)
+{
+	int *i = (int *)extra_args;
+	char *end;
+
+	*i = strtol(value, &end, 10);
+	if (*i < 0) {
+		AF_XDP_LOG(ERR, "Argument has to be positive.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/** parse name argument */
+static int
+parse_name_arg(const char *key __rte_unused,
+	       const char *value, void *extra_args)
+{
+	char *name = extra_args;
+
+	if (strnlen(value, IFNAMSIZ) > IFNAMSIZ - 1) {
+		AF_XDP_LOG(ERR, "Invalid name %s, should be less than %u bytes.\n",
+			   value, IFNAMSIZ);
+		return -EINVAL;
+	}
+
+	strlcpy(name, value, IFNAMSIZ);
+
+	return 0;
+}
+
+static int
+xdp_get_channels_info(const char *if_name, int *max_queues,
+				int *combined_queues)
+{
+	struct ethtool_channels channels;
+	struct ifreq ifr;
+	int fd, ret;
+
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0)
+		return -1;
+
+	channels.cmd = ETHTOOL_GCHANNELS;
+	ifr.ifr_data = (void *)&channels;
+	strncpy(ifr.ifr_name, if_name, IFNAMSIZ);
+	ret = ioctl(fd, SIOCETHTOOL, &ifr);
+	if (ret) {
+		if (errno == EOPNOTSUPP) {
+			ret = 0;
+		} else {
+			ret = -errno;
+			goto out;
+		}
+	}
+
+	if (channels.max_combined == 0 || errno == EOPNOTSUPP) {
+		/* If the device says it has no channels, then all traffic
+		 * is sent to a single stream, so max queues = 1.
+		 */
+		*max_queues = 1;
+		*combined_queues = 1;
+	} else {
+		*max_queues = channels.max_combined;
+		*combined_queues = channels.combined_count;
+	}
+
+ out:
+	close(fd);
+	return ret;
+}
+
+static int
+parse_parameters(struct rte_kvargs *kvlist, char *if_name, int *start_queue,
+			int *queue_cnt)
+{
+	int ret;
+
+	ret = rte_kvargs_process(kvlist, ETH_AF_XDP_IFACE_ARG,
+				 &parse_name_arg, if_name);
+	if (ret < 0)
+		goto free_kvlist;
+
+	ret = rte_kvargs_process(kvlist, ETH_AF_XDP_START_QUEUE_ARG,
+				 &parse_integer_arg, start_queue);
+	if (ret < 0)
+		goto free_kvlist;
+
+	ret = rte_kvargs_process(kvlist, ETH_AF_XDP_QUEUE_COUNT_ARG,
+				 &parse_integer_arg, queue_cnt);
+	if (ret < 0 || *queue_cnt <= 0) {
+		ret = -EINVAL;
+		goto free_kvlist;
+	}
+
+free_kvlist:
+	rte_kvargs_free(kvlist);
+	return ret;
+}
+
+static int
+get_iface_info(const char *if_name,
+	       struct rte_ether_addr *eth_addr,
+	       int *if_index)
+{
+	struct ifreq ifr;
+	int sock = socket(AF_INET, SOCK_DGRAM, IPPROTO_IP);
+
+	if (sock < 0)
+		return -1;
+
+	strlcpy(ifr.ifr_name, if_name, IFNAMSIZ);
+	if (ioctl(sock, SIOCGIFINDEX, &ifr))
+		goto error;
+
+	*if_index = ifr.ifr_ifindex;
+
+	if (ioctl(sock, SIOCGIFHWADDR, &ifr))
+		goto error;
+
+	rte_memcpy(eth_addr, ifr.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN);
+
+	close(sock);
+	return 0;
+
+error:
+	close(sock);
+	return -1;
+}
+
+static struct rte_eth_dev *
+init_internals(struct rte_vdev_device *dev, const char *if_name,
+			int start_queue_idx, int queue_cnt)
+{
+	const char *name = rte_vdev_device_name(dev);
+	const unsigned int numa_node = dev->device.numa_node;
+	struct pmd_internals *internals;
+	struct rte_eth_dev *eth_dev;
+	int ret;
+	int i;
+
+	internals = rte_zmalloc_socket(name, sizeof(*internals), 0, numa_node);
+	if (internals == NULL)
+		return NULL;
+
+	internals->start_queue_idx = start_queue_idx;
+	internals->queue_cnt = queue_cnt;
+	strlcpy(internals->if_name, if_name, IFNAMSIZ);
+
+	if (xdp_get_channels_info(if_name, &internals->max_queue_cnt,
+				  &internals->combined_queue_cnt)) {
+		AF_XDP_LOG(ERR, "Failed to get channel info of interface: %s\n",
+				if_name);
+		goto err_free_internals;
+	}
+
+	if (queue_cnt > internals->combined_queue_cnt) {
+		AF_XDP_LOG(ERR, "Specified queue count %d is larger than combined queue count %d.\n",
+				queue_cnt, internals->combined_queue_cnt);
+		goto err_free_internals;
+	}
+
+	internals->rx_queues = rte_zmalloc_socket(NULL,
+					sizeof(struct pkt_rx_queue) * queue_cnt,
+					0, numa_node);
+	if (internals->rx_queues == NULL) {
+		AF_XDP_LOG(ERR, "Failed to allocate memory for rx queues.\n");
+		goto err_free_internals;
+	}
+
+	internals->tx_queues = rte_zmalloc_socket(NULL,
+					sizeof(struct pkt_tx_queue) * queue_cnt,
+					0, numa_node);
+	if (internals->tx_queues == NULL) {
+		AF_XDP_LOG(ERR, "Failed to allocate memory for tx queues.\n");
+		goto err_free_rx;
+	}
+	for (i = 0; i < queue_cnt; i++) {
+		internals->tx_queues[i].pair = &internals->rx_queues[i];
+		internals->rx_queues[i].pair = &internals->tx_queues[i];
+		internals->rx_queues[i].xsk_queue_idx = start_queue_idx + i;
+		internals->tx_queues[i].xsk_queue_idx = start_queue_idx + i;
+	}
+
+	ret = get_iface_info(if_name, &internals->eth_addr,
+			     &internals->if_index);
+	if (ret)
+		goto err_free_tx;
+
+	eth_dev = rte_eth_vdev_allocate(dev, 0);
+	if (eth_dev == NULL)
+		goto err_free_tx;
+
+	eth_dev->data->dev_private = internals;
+	eth_dev->data->dev_link = pmd_link;
+	eth_dev->data->mac_addrs = &internals->eth_addr;
+	eth_dev->dev_ops = &ops;
+	eth_dev->rx_pkt_burst = eth_af_xdp_rx;
+	eth_dev->tx_pkt_burst = eth_af_xdp_tx;
+	/* Let rte_eth_dev_close() release the port resources. */
+	eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
+
+#if defined(XDP_UMEM_UNALIGNED_CHUNK_FLAG)
+	AF_XDP_LOG(INFO, "Zero copy between umem and mbuf enabled.\n");
+#endif
+
+	return eth_dev;
+
+err_free_tx:
+	rte_free(internals->tx_queues);
+err_free_rx:
+	rte_free(internals->rx_queues);
+err_free_internals:
+	rte_free(internals);
+	return NULL;
+}
+
+static int
+rte_pmd_af_xdp_probe(struct rte_vdev_device *dev)
+{
+	struct rte_kvargs *kvlist;
+	char if_name[IFNAMSIZ] = {'\0'};
+	int xsk_start_queue_idx = ETH_AF_XDP_DFLT_START_QUEUE_IDX;
+	int xsk_queue_cnt = ETH_AF_XDP_DFLT_QUEUE_COUNT;
+	struct rte_eth_dev *eth_dev = NULL;
+	const char *name;
+
+	AF_XDP_LOG(INFO, "Initializing pmd_af_xdp for %s\n",
+		rte_vdev_device_name(dev));
+
+	name = rte_vdev_device_name(dev);
+	if (rte_eal_process_type() == RTE_PROC_SECONDARY &&
+		strlen(rte_vdev_device_args(dev)) == 0) {
+		eth_dev = rte_eth_dev_attach_secondary(name);
+		if (eth_dev == NULL) {
+			AF_XDP_LOG(ERR, "Failed to probe %s\n", name);
+			return -EINVAL;
+		}
+		eth_dev->dev_ops = &ops;
+		rte_eth_dev_probing_finish(eth_dev);
+		return 0;
+	}
+
+	kvlist = rte_kvargs_parse(rte_vdev_device_args(dev), valid_arguments);
+	if (kvlist == NULL) {
+		AF_XDP_LOG(ERR, "Invalid kvargs key\n");
+		return -EINVAL;
+	}
+
+	if (dev->device.numa_node == SOCKET_ID_ANY)
+		dev->device.numa_node = rte_socket_id();
+
+	if (parse_parameters(kvlist, if_name, &xsk_start_queue_idx,
+			     &xsk_queue_cnt) < 0) {
+		AF_XDP_LOG(ERR, "Invalid kvargs value\n");
+		return -EINVAL;
+	}
+
+	if (strlen(if_name) == 0) {
+		AF_XDP_LOG(ERR, "Network interface must be specified\n");
+		return -EINVAL;
+	}
+
+	eth_dev = init_internals(dev, if_name, xsk_start_queue_idx,
+					xsk_queue_cnt);
+	if (eth_dev == NULL) {
+		AF_XDP_LOG(ERR, "Failed to init internals\n");
+		return -1;
+	}
+
+	rte_eth_dev_probing_finish(eth_dev);
+
+	return 0;
+}
+
+static int
+rte_pmd_af_xdp_remove(struct rte_vdev_device *dev)
+{
+	struct rte_eth_dev *eth_dev = NULL;
+
+	AF_XDP_LOG(INFO, "Removing AF_XDP ethdev on numa socket %u\n",
+		rte_socket_id());
+
+	if (dev == NULL)
+		return -1;
+
+	/* find the ethdev entry */
+	eth_dev = rte_eth_dev_allocated(rte_vdev_device_name(dev));
+	if (eth_dev == NULL)
+		return 0;
+
+	eth_dev_close(eth_dev);
+	rte_eth_dev_release_port(eth_dev);
+
+
+	return 0;
+}
+
+static struct rte_vdev_driver pmd_af_xdp_drv = {
+	.probe = rte_pmd_af_xdp_probe,
+	.remove = rte_pmd_af_xdp_remove,
+};
+
+RTE_PMD_REGISTER_VDEV(net_af_xdp, pmd_af_xdp_drv);
+RTE_PMD_REGISTER_PARAM_STRING(net_af_xdp,
+			      "iface=<string> "
+			      "start_queue=<int> "
+			      "queue_count=<int> ");
+
+RTE_INIT(af_xdp_init_log)
+{
+	af_xdp_logtype = rte_log_register("pmd.net.af_xdp");
+	if (af_xdp_logtype >= 0)
+		rte_log_set_level(af_xdp_logtype, RTE_LOG_NOTICE);
+}
diff --git a/src/spdk/dpdk/drivers/net/af_xdp/rte_pmd_af_xdp_version.map b/src/spdk/dpdk/drivers/net/af_xdp/rte_pmd_af_xdp_version.map
new file mode 100644
index 000000000..f9f17e4f6
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/af_xdp/rte_pmd_af_xdp_version.map
@@ -0,0 +1,3 @@
+DPDK_20.0 {
+	local: *;
+};