diff --git a/Documentation/networking/af_xdp.rst b/Documentation/networking/af_xdp.rst
index 4ae4f9d8f8fe..e14d7d40fc75 100644
--- a/Documentation/networking/af_xdp.rst
+++ b/Documentation/networking/af_xdp.rst
@@ -295,6 +295,41 @@ using::
 For XDP_SKB mode, use the switch "-S" instead of "-N" and all options
 can be displayed with "-h", as usual.
 
+FAQ
+=======
+
+Q: I am not seeing any traffic on the socket. What am I doing wrong?
+
+A: When a netdev of a physical NIC is initialized, Linux usually
+   allocates one Rx and Tx queue pair per core. So on a 8 core system,
+   queue ids 0 to 7 will be allocated, one per core. In the AF_XDP
+   bind call or the xsk_socket__create libbpf function call, you
+   specify a specific queue id to bind to and it is only the traffic
+   towards that queue you are going to get on you socket. So in the
+   example above, if you bind to queue 0, you are NOT going to get any
+   traffic that is distributed to queues 1 through 7. If you are
+   lucky, you will see the traffic, but usually it will end up on one
+   of the queues you have not bound to.
+
+   There are a number of ways to solve the problem of getting the
+   traffic you want to the queue id you bound to. If you want to see
+   all the traffic, you can force the netdev to only have 1 queue, queue
+   id 0, and then bind to queue 0. You can use ethtool to do this::
+
+   sudo ethtool -L <interface> combined 1
+
+   If you want to only see part of the traffic, you can program the
+   NIC through ethtool to filter out your traffic to a single queue id
+   that you can bind your XDP socket to. Here is one example in which
+   UDP traffic to and from port 4242 are sent to queue 2::
+
+   sudo ethtool -N <interface> rx-flow-hash udp4 fn
+   sudo ethtool -N <interface> flow-type udp4 src-port 4242 dst-port \
+   4242 action 2
+
+   A number of other ways are possible all up to the capabilitites of
+   the NIC you have.
+
 Credits
 =======
 
@@ -309,4 +344,3 @@ Credits
 - Michael S. Tsirkin
 - Qi Z Zhang
 - Willem de Bruijn
-
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index a0ef7eddd0b3..a333e258f319 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -163,7 +163,6 @@ always += xdp2skb_meta_kern.o
 always += syscall_tp_kern.o
 always += cpustat_kern.o
 always += xdp_adjust_tail_kern.o
-always += xdpsock_kern.o
 always += xdp_fwd_kern.o
 always += task_fd_query_kern.o
 always += xdp_sample_pkts_kern.o
diff --git a/samples/bpf/xdpsock.h b/samples/bpf/xdpsock.h
deleted file mode 100644
index 533ab81adfa1..000000000000
--- a/samples/bpf/xdpsock.h
+++ /dev/null
@@ -1,11 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef XDPSOCK_H_
-#define XDPSOCK_H_
-
-/* Power-of-2 number of sockets */
-#define MAX_SOCKS 4
-
-/* Round-robin receive */
-#define RR_LB 0
-
-#endif /* XDPSOCK_H_ */
diff --git a/samples/bpf/xdpsock_kern.c b/samples/bpf/xdpsock_kern.c
deleted file mode 100644
index b8ccd0802b3f..000000000000
--- a/samples/bpf/xdpsock_kern.c
+++ /dev/null
@@ -1,56 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#define KBUILD_MODNAME "foo"
-#include <uapi/linux/bpf.h>
-#include "bpf_helpers.h"
-
-#include "xdpsock.h"
-
-struct bpf_map_def SEC("maps") qidconf_map = {
-	.type		= BPF_MAP_TYPE_ARRAY,
-	.key_size	= sizeof(int),
-	.value_size	= sizeof(int),
-	.max_entries	= 1,
-};
-
-struct bpf_map_def SEC("maps") xsks_map = {
-	.type = BPF_MAP_TYPE_XSKMAP,
-	.key_size = sizeof(int),
-	.value_size = sizeof(int),
-	.max_entries = MAX_SOCKS,
-};
-
-struct bpf_map_def SEC("maps") rr_map = {
-	.type = BPF_MAP_TYPE_PERCPU_ARRAY,
-	.key_size = sizeof(int),
-	.value_size = sizeof(unsigned int),
-	.max_entries = 1,
-};
-
-SEC("xdp_sock")
-int xdp_sock_prog(struct xdp_md *ctx)
-{
-	int *qidconf, key = 0, idx;
-	unsigned int *rr;
-
-	qidconf = bpf_map_lookup_elem(&qidconf_map, &key);
-	if (!qidconf)
-		return XDP_ABORTED;
-
-	if (*qidconf != ctx->rx_queue_index)
-		return XDP_PASS;
-
-#if RR_LB /* NB! RR_LB is configured in xdpsock.h */
-	rr = bpf_map_lookup_elem(&rr_map, &key);
-	if (!rr)
-		return XDP_ABORTED;
-
-	*rr = (*rr + 1) & (MAX_SOCKS - 1);
-	idx = *rr;
-#else
-	idx = 0;
-#endif
-
-	return bpf_redirect_map(&xsks_map, idx, 0);
-}
-
-char _license[] SEC("license") = "GPL";
diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c
index f73055e0191f..9c76d6d43deb 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c
@@ -1,37 +1,36 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright(c) 2017 - 2018 Intel Corporation. */
 
-#include <assert.h>
+#include <asm/barrier.h>
 #include <errno.h>
 #include <getopt.h>
 #include <libgen.h>
 #include <linux/bpf.h>
+#include <linux/compiler.h>
 #include <linux/if_link.h>
 #include <linux/if_xdp.h>
 #include <linux/if_ether.h>
+#include <locale.h>
+#include <net/ethernet.h>
 #include <net/if.h>
+#include <poll.h>
+#include <pthread.h>
 #include <signal.h>
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <net/ethernet.h>
+#include <sys/mman.h>
 #include <sys/resource.h>
 #include <sys/socket.h>
-#include <sys/mman.h>
+#include <sys/types.h>
 #include <time.h>
 #include <unistd.h>
-#include <pthread.h>
-#include <locale.h>
-#include <sys/types.h>
-#include <poll.h>
 
 #include "bpf/libbpf.h"
-#include "bpf_util.h"
+#include "bpf/xsk.h"
 #include <bpf/bpf.h>
 
-#include "xdpsock.h"
-
 #ifndef SOL_XDP
 #define SOL_XDP 283
 #endif
@@ -44,17 +43,11 @@
 #define PF_XDP AF_XDP
 #endif
 
-#define NUM_FRAMES 131072
-#define FRAME_HEADROOM 0
-#define FRAME_SHIFT 11
-#define FRAME_SIZE 2048
-#define NUM_DESCS 1024
-#define BATCH_SIZE 16
-
-#define FQ_NUM_DESCS 1024
-#define CQ_NUM_DESCS 1024
+#define NUM_FRAMES (4 * 1024)
+#define BATCH_SIZE 64
 
 #define DEBUG_HEXDUMP 0
+#define MAX_SOCKS 8
 
 typedef __u64 u64;
 typedef __u32 u32;
@@ -73,54 +66,31 @@ static const char *opt_if = "";
 static int opt_ifindex;
 static int opt_queue;
 static int opt_poll;
-static int opt_shared_packet_buffer;
 static int opt_interval = 1;
 static u32 opt_xdp_bind_flags;
 static __u32 prog_id;
 
-struct xdp_umem_uqueue {
-	u32 cached_prod;
-	u32 cached_cons;
-	u32 mask;
-	u32 size;
-	u32 *producer;
-	u32 *consumer;
-	u64 *ring;
-	void *map;
+struct xsk_umem_info {
+	struct xsk_ring_prod fq;
+	struct xsk_ring_cons cq;
+	struct xsk_umem *umem;
+	void *buffer;
 };
 
-struct xdp_umem {
-	char *frames;
-	struct xdp_umem_uqueue fq;
-	struct xdp_umem_uqueue cq;
-	int fd;
-};
-
-struct xdp_uqueue {
-	u32 cached_prod;
-	u32 cached_cons;
-	u32 mask;
-	u32 size;
-	u32 *producer;
-	u32 *consumer;
-	struct xdp_desc *ring;
-	void *map;
-};
-
-struct xdpsock {
-	struct xdp_uqueue rx;
-	struct xdp_uqueue tx;
-	int sfd;
-	struct xdp_umem *umem;
-	u32 outstanding_tx;
+struct xsk_socket_info {
+	struct xsk_ring_cons rx;
+	struct xsk_ring_prod tx;
+	struct xsk_umem_info *umem;
+	struct xsk_socket *xsk;
 	unsigned long rx_npkts;
 	unsigned long tx_npkts;
 	unsigned long prev_rx_npkts;
 	unsigned long prev_tx_npkts;
+	u32 outstanding_tx;
 };
 
 static int num_socks;
-struct xdpsock *xsks[MAX_SOCKS];
+struct xsk_socket_info *xsks[MAX_SOCKS];
 
 static unsigned long get_nsecs(void)
 {
@@ -130,436 +100,6 @@ static unsigned long get_nsecs(void)
 	return ts.tv_sec * 1000000000UL + ts.tv_nsec;
 }
 
-static void dump_stats(void);
-
-#define lassert(expr)							\
-	do {								\
-		if (!(expr)) {						\
-			fprintf(stderr, "%s:%s:%i: Assertion failed: "	\
-				#expr ": errno: %d/\"%s\"\n",		\
-				__FILE__, __func__, __LINE__,		\
-				errno, strerror(errno));		\
-			dump_stats();					\
-			exit(EXIT_FAILURE);				\
-		}							\
-	} while (0)
-
-#define barrier() __asm__ __volatile__("": : :"memory")
-#ifdef __aarch64__
-#define u_smp_rmb() __asm__ __volatile__("dmb ishld": : :"memory")
-#define u_smp_wmb() __asm__ __volatile__("dmb ishst": : :"memory")
-#else
-#define u_smp_rmb() barrier()
-#define u_smp_wmb() barrier()
-#endif
-#define likely(x) __builtin_expect(!!(x), 1)
-#define unlikely(x) __builtin_expect(!!(x), 0)
-
-static const char pkt_data[] =
-	"\x3c\xfd\xfe\x9e\x7f\x71\xec\xb1\xd7\x98\x3a\xc0\x08\x00\x45\x00"
-	"\x00\x2e\x00\x00\x00\x00\x40\x11\x88\x97\x05\x08\x07\x08\xc8\x14"
-	"\x1e\x04\x10\x92\x10\x92\x00\x1a\x6d\xa3\x34\x33\x1f\x69\x40\x6b"
-	"\x54\x59\xb6\x14\x2d\x11\x44\xbf\xaf\xd9\xbe\xaa";
-
-static inline u32 umem_nb_free(struct xdp_umem_uqueue *q, u32 nb)
-{
-	u32 free_entries = q->cached_cons - q->cached_prod;
-
-	if (free_entries >= nb)
-		return free_entries;
-
-	/* Refresh the local tail pointer */
-	q->cached_cons = *q->consumer + q->size;
-
-	return q->cached_cons - q->cached_prod;
-}
-
-static inline u32 xq_nb_free(struct xdp_uqueue *q, u32 ndescs)
-{
-	u32 free_entries = q->cached_cons - q->cached_prod;
-
-	if (free_entries >= ndescs)
-		return free_entries;
-
-	/* Refresh the local tail pointer */
-	q->cached_cons = *q->consumer + q->size;
-	return q->cached_cons - q->cached_prod;
-}
-
-static inline u32 umem_nb_avail(struct xdp_umem_uqueue *q, u32 nb)
-{
-	u32 entries = q->cached_prod - q->cached_cons;
-
-	if (entries == 0) {
-		q->cached_prod = *q->producer;
-		entries = q->cached_prod - q->cached_cons;
-	}
-
-	return (entries > nb) ? nb : entries;
-}
-
-static inline u32 xq_nb_avail(struct xdp_uqueue *q, u32 ndescs)
-{
-	u32 entries = q->cached_prod - q->cached_cons;
-
-	if (entries == 0) {
-		q->cached_prod = *q->producer;
-		entries = q->cached_prod - q->cached_cons;
-	}
-
-	return (entries > ndescs) ? ndescs : entries;
-}
-
-static inline int umem_fill_to_kernel_ex(struct xdp_umem_uqueue *fq,
-					 struct xdp_desc *d,
-					 size_t nb)
-{
-	u32 i;
-
-	if (umem_nb_free(fq, nb) < nb)
-		return -ENOSPC;
-
-	for (i = 0; i < nb; i++) {
-		u32 idx = fq->cached_prod++ & fq->mask;
-
-		fq->ring[idx] = d[i].addr;
-	}
-
-	u_smp_wmb();
-
-	*fq->producer = fq->cached_prod;
-
-	return 0;
-}
-
-static inline int umem_fill_to_kernel(struct xdp_umem_uqueue *fq, u64 *d,
-				      size_t nb)
-{
-	u32 i;
-
-	if (umem_nb_free(fq, nb) < nb)
-		return -ENOSPC;
-
-	for (i = 0; i < nb; i++) {
-		u32 idx = fq->cached_prod++ & fq->mask;
-
-		fq->ring[idx] = d[i];
-	}
-
-	u_smp_wmb();
-
-	*fq->producer = fq->cached_prod;
-
-	return 0;
-}
-
-static inline size_t umem_complete_from_kernel(struct xdp_umem_uqueue *cq,
-					       u64 *d, size_t nb)
-{
-	u32 idx, i, entries = umem_nb_avail(cq, nb);
-
-	u_smp_rmb();
-
-	for (i = 0; i < entries; i++) {
-		idx = cq->cached_cons++ & cq->mask;
-		d[i] = cq->ring[idx];
-	}
-
-	if (entries > 0) {
-		u_smp_wmb();
-
-		*cq->consumer = cq->cached_cons;
-	}
-
-	return entries;
-}
-
-static inline void *xq_get_data(struct xdpsock *xsk, u64 addr)
-{
-	return &xsk->umem->frames[addr];
-}
-
-static inline int xq_enq(struct xdp_uqueue *uq,
-			 const struct xdp_desc *descs,
-			 unsigned int ndescs)
-{
-	struct xdp_desc *r = uq->ring;
-	unsigned int i;
-
-	if (xq_nb_free(uq, ndescs) < ndescs)
-		return -ENOSPC;
-
-	for (i = 0; i < ndescs; i++) {
-		u32 idx = uq->cached_prod++ & uq->mask;
-
-		r[idx].addr = descs[i].addr;
-		r[idx].len = descs[i].len;
-	}
-
-	u_smp_wmb();
-
-	*uq->producer = uq->cached_prod;
-	return 0;
-}
-
-static inline int xq_enq_tx_only(struct xdp_uqueue *uq,
-				 unsigned int id, unsigned int ndescs)
-{
-	struct xdp_desc *r = uq->ring;
-	unsigned int i;
-
-	if (xq_nb_free(uq, ndescs) < ndescs)
-		return -ENOSPC;
-
-	for (i = 0; i < ndescs; i++) {
-		u32 idx = uq->cached_prod++ & uq->mask;
-
-		r[idx].addr	= (id + i) << FRAME_SHIFT;
-		r[idx].len	= sizeof(pkt_data) - 1;
-	}
-
-	u_smp_wmb();
-
-	*uq->producer = uq->cached_prod;
-	return 0;
-}
-
-static inline int xq_deq(struct xdp_uqueue *uq,
-			 struct xdp_desc *descs,
-			 int ndescs)
-{
-	struct xdp_desc *r = uq->ring;
-	unsigned int idx;
-	int i, entries;
-
-	entries = xq_nb_avail(uq, ndescs);
-
-	u_smp_rmb();
-
-	for (i = 0; i < entries; i++) {
-		idx = uq->cached_cons++ & uq->mask;
-		descs[i] = r[idx];
-	}
-
-	if (entries > 0) {
-		u_smp_wmb();
-
-		*uq->consumer = uq->cached_cons;
-	}
-
-	return entries;
-}
-
-static void swap_mac_addresses(void *data)
-{
-	struct ether_header *eth = (struct ether_header *)data;
-	struct ether_addr *src_addr = (struct ether_addr *)&eth->ether_shost;
-	struct ether_addr *dst_addr = (struct ether_addr *)&eth->ether_dhost;
-	struct ether_addr tmp;
-
-	tmp = *src_addr;
-	*src_addr = *dst_addr;
-	*dst_addr = tmp;
-}
-
-static void hex_dump(void *pkt, size_t length, u64 addr)
-{
-	const unsigned char *address = (unsigned char *)pkt;
-	const unsigned char *line = address;
-	size_t line_size = 32;
-	unsigned char c;
-	char buf[32];
-	int i = 0;
-
-	if (!DEBUG_HEXDUMP)
-		return;
-
-	sprintf(buf, "addr=%llu", addr);
-	printf("length = %zu\n", length);
-	printf("%s | ", buf);
-	while (length-- > 0) {
-		printf("%02X ", *address++);
-		if (!(++i % line_size) || (length == 0 && i % line_size)) {
-			if (length == 0) {
-				while (i++ % line_size)
-					printf("__ ");
-			}
-			printf(" | ");	/* right close */
-			while (line < address) {
-				c = *line++;
-				printf("%c", (c < 33 || c == 255) ? 0x2E : c);
-			}
-			printf("\n");
-			if (length > 0)
-				printf("%s | ", buf);
-		}
-	}
-	printf("\n");
-}
-
-static size_t gen_eth_frame(char *frame)
-{
-	memcpy(frame, pkt_data, sizeof(pkt_data) - 1);
-	return sizeof(pkt_data) - 1;
-}
-
-static struct xdp_umem *xdp_umem_configure(int sfd)
-{
-	int fq_size = FQ_NUM_DESCS, cq_size = CQ_NUM_DESCS;
-	struct xdp_mmap_offsets off;
-	struct xdp_umem_reg mr;
-	struct xdp_umem *umem;
-	socklen_t optlen;
-	void *bufs;
-
-	umem = calloc(1, sizeof(*umem));
-	lassert(umem);
-
-	lassert(posix_memalign(&bufs, getpagesize(), /* PAGE_SIZE aligned */
-			       NUM_FRAMES * FRAME_SIZE) == 0);
-
-	mr.addr = (__u64)bufs;
-	mr.len = NUM_FRAMES * FRAME_SIZE;
-	mr.chunk_size = FRAME_SIZE;
-	mr.headroom = FRAME_HEADROOM;
-
-	lassert(setsockopt(sfd, SOL_XDP, XDP_UMEM_REG, &mr, sizeof(mr)) == 0);
-	lassert(setsockopt(sfd, SOL_XDP, XDP_UMEM_FILL_RING, &fq_size,
-			   sizeof(int)) == 0);
-	lassert(setsockopt(sfd, SOL_XDP, XDP_UMEM_COMPLETION_RING, &cq_size,
-			   sizeof(int)) == 0);
-
-	optlen = sizeof(off);
-	lassert(getsockopt(sfd, SOL_XDP, XDP_MMAP_OFFSETS, &off,
-			   &optlen) == 0);
-
-	umem->fq.map = mmap(0, off.fr.desc +
-			    FQ_NUM_DESCS * sizeof(u64),
-			    PROT_READ | PROT_WRITE,
-			    MAP_SHARED | MAP_POPULATE, sfd,
-			    XDP_UMEM_PGOFF_FILL_RING);
-	lassert(umem->fq.map != MAP_FAILED);
-
-	umem->fq.mask = FQ_NUM_DESCS - 1;
-	umem->fq.size = FQ_NUM_DESCS;
-	umem->fq.producer = umem->fq.map + off.fr.producer;
-	umem->fq.consumer = umem->fq.map + off.fr.consumer;
-	umem->fq.ring = umem->fq.map + off.fr.desc;
-	umem->fq.cached_cons = FQ_NUM_DESCS;
-
-	umem->cq.map = mmap(0, off.cr.desc +
-			     CQ_NUM_DESCS * sizeof(u64),
-			     PROT_READ | PROT_WRITE,
-			     MAP_SHARED | MAP_POPULATE, sfd,
-			     XDP_UMEM_PGOFF_COMPLETION_RING);
-	lassert(umem->cq.map != MAP_FAILED);
-
-	umem->cq.mask = CQ_NUM_DESCS - 1;
-	umem->cq.size = CQ_NUM_DESCS;
-	umem->cq.producer = umem->cq.map + off.cr.producer;
-	umem->cq.consumer = umem->cq.map + off.cr.consumer;
-	umem->cq.ring = umem->cq.map + off.cr.desc;
-
-	umem->frames = bufs;
-	umem->fd = sfd;
-
-	if (opt_bench == BENCH_TXONLY) {
-		int i;
-
-		for (i = 0; i < NUM_FRAMES * FRAME_SIZE; i += FRAME_SIZE)
-			(void)gen_eth_frame(&umem->frames[i]);
-	}
-
-	return umem;
-}
-
-static struct xdpsock *xsk_configure(struct xdp_umem *umem)
-{
-	struct sockaddr_xdp sxdp = {};
-	struct xdp_mmap_offsets off;
-	int sfd, ndescs = NUM_DESCS;
-	struct xdpsock *xsk;
-	bool shared = true;
-	socklen_t optlen;
-	u64 i;
-
-	sfd = socket(PF_XDP, SOCK_RAW, 0);
-	lassert(sfd >= 0);
-
-	xsk = calloc(1, sizeof(*xsk));
-	lassert(xsk);
-
-	xsk->sfd = sfd;
-	xsk->outstanding_tx = 0;
-
-	if (!umem) {
-		shared = false;
-		xsk->umem = xdp_umem_configure(sfd);
-	} else {
-		xsk->umem = umem;
-	}
-
-	lassert(setsockopt(sfd, SOL_XDP, XDP_RX_RING,
-			   &ndescs, sizeof(int)) == 0);
-	lassert(setsockopt(sfd, SOL_XDP, XDP_TX_RING,
-			   &ndescs, sizeof(int)) == 0);
-	optlen = sizeof(off);
-	lassert(getsockopt(sfd, SOL_XDP, XDP_MMAP_OFFSETS, &off,
-			   &optlen) == 0);
-
-	/* Rx */
-	xsk->rx.map = mmap(NULL,
-			   off.rx.desc +
-			   NUM_DESCS * sizeof(struct xdp_desc),
-			   PROT_READ | PROT_WRITE,
-			   MAP_SHARED | MAP_POPULATE, sfd,
-			   XDP_PGOFF_RX_RING);
-	lassert(xsk->rx.map != MAP_FAILED);
-
-	if (!shared) {
-		for (i = 0; i < NUM_DESCS * FRAME_SIZE; i += FRAME_SIZE)
-			lassert(umem_fill_to_kernel(&xsk->umem->fq, &i, 1)
-				== 0);
-	}
-
-	/* Tx */
-	xsk->tx.map = mmap(NULL,
-			   off.tx.desc +
-			   NUM_DESCS * sizeof(struct xdp_desc),
-			   PROT_READ | PROT_WRITE,
-			   MAP_SHARED | MAP_POPULATE, sfd,
-			   XDP_PGOFF_TX_RING);
-	lassert(xsk->tx.map != MAP_FAILED);
-
-	xsk->rx.mask = NUM_DESCS - 1;
-	xsk->rx.size = NUM_DESCS;
-	xsk->rx.producer = xsk->rx.map + off.rx.producer;
-	xsk->rx.consumer = xsk->rx.map + off.rx.consumer;
-	xsk->rx.ring = xsk->rx.map + off.rx.desc;
-
-	xsk->tx.mask = NUM_DESCS - 1;
-	xsk->tx.size = NUM_DESCS;
-	xsk->tx.producer = xsk->tx.map + off.tx.producer;
-	xsk->tx.consumer = xsk->tx.map + off.tx.consumer;
-	xsk->tx.ring = xsk->tx.map + off.tx.desc;
-	xsk->tx.cached_cons = NUM_DESCS;
-
-	sxdp.sxdp_family = PF_XDP;
-	sxdp.sxdp_ifindex = opt_ifindex;
-	sxdp.sxdp_queue_id = opt_queue;
-
-	if (shared) {
-		sxdp.sxdp_flags = XDP_SHARED_UMEM;
-		sxdp.sxdp_shared_umem_fd = umem->fd;
-	} else {
-		sxdp.sxdp_flags = opt_xdp_bind_flags;
-	}
-
-	lassert(bind(sfd, (struct sockaddr *)&sxdp, sizeof(sxdp)) == 0);
-
-	return xsk;
-}
-
 static void print_benchmark(bool running)
 {
 	const char *bench_str = "INVALID";
@@ -630,12 +170,10 @@ static void *poller(void *arg)
 	return NULL;
 }
 
-static void int_exit(int sig)
+static void remove_xdp_program(void)
 {
 	__u32 curr_prog_id = 0;
 
-	(void)sig;
-	dump_stats();
 	if (bpf_get_link_xdp_id(opt_ifindex, &curr_prog_id, opt_xdp_flags)) {
 		printf("bpf_get_link_xdp_id failed\n");
 		exit(EXIT_FAILURE);
@@ -646,9 +184,156 @@ static void int_exit(int sig)
 		printf("couldn't find a prog id on a given interface\n");
 	else
 		printf("program on interface changed, not removing\n");
+}
+
+static void int_exit(int sig)
+{
+	struct xsk_umem *umem = xsks[0]->umem->umem;
+
+	(void)sig;
+
+	dump_stats();
+	xsk_socket__delete(xsks[0]->xsk);
+	(void)xsk_umem__delete(umem);
+	remove_xdp_program();
+
 	exit(EXIT_SUCCESS);
 }
 
+static void __exit_with_error(int error, const char *file, const char *func,
+			      int line)
+{
+	fprintf(stderr, "%s:%s:%i: errno: %d/\"%s\"\n", file, func,
+		line, error, strerror(error));
+	dump_stats();
+	remove_xdp_program();
+	exit(EXIT_FAILURE);
+}
+
+#define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, \
+						 __LINE__)
+
+static const char pkt_data[] =
+	"\x3c\xfd\xfe\x9e\x7f\x71\xec\xb1\xd7\x98\x3a\xc0\x08\x00\x45\x00"
+	"\x00\x2e\x00\x00\x00\x00\x40\x11\x88\x97\x05\x08\x07\x08\xc8\x14"
+	"\x1e\x04\x10\x92\x10\x92\x00\x1a\x6d\xa3\x34\x33\x1f\x69\x40\x6b"
+	"\x54\x59\xb6\x14\x2d\x11\x44\xbf\xaf\xd9\xbe\xaa";
+
+static void swap_mac_addresses(void *data)
+{
+	struct ether_header *eth = (struct ether_header *)data;
+	struct ether_addr *src_addr = (struct ether_addr *)&eth->ether_shost;
+	struct ether_addr *dst_addr = (struct ether_addr *)&eth->ether_dhost;
+	struct ether_addr tmp;
+
+	tmp = *src_addr;
+	*src_addr = *dst_addr;
+	*dst_addr = tmp;
+}
+
+static void hex_dump(void *pkt, size_t length, u64 addr)
+{
+	const unsigned char *address = (unsigned char *)pkt;
+	const unsigned char *line = address;
+	size_t line_size = 32;
+	unsigned char c;
+	char buf[32];
+	int i = 0;
+
+	if (!DEBUG_HEXDUMP)
+		return;
+
+	sprintf(buf, "addr=%llu", addr);
+	printf("length = %zu\n", length);
+	printf("%s | ", buf);
+	while (length-- > 0) {
+		printf("%02X ", *address++);
+		if (!(++i % line_size) || (length == 0 && i % line_size)) {
+			if (length == 0) {
+				while (i++ % line_size)
+					printf("__ ");
+			}
+			printf(" | ");	/* right close */
+			while (line < address) {
+				c = *line++;
+				printf("%c", (c < 33 || c == 255) ? 0x2E : c);
+			}
+			printf("\n");
+			if (length > 0)
+				printf("%s | ", buf);
+		}
+	}
+	printf("\n");
+}
+
+static size_t gen_eth_frame(struct xsk_umem_info *umem, u64 addr)
+{
+	memcpy(xsk_umem__get_data(umem->buffer, addr), pkt_data,
+	       sizeof(pkt_data) - 1);
+	return sizeof(pkt_data) - 1;
+}
+
+static struct xsk_umem_info *xsk_configure_umem(void *buffer, u64 size)
+{
+	struct xsk_umem_info *umem;
+	int ret;
+
+	umem = calloc(1, sizeof(*umem));
+	if (!umem)
+		exit_with_error(errno);
+
+	ret = xsk_umem__create(&umem->umem, buffer, size, &umem->fq, &umem->cq,
+			       NULL);
+	if (ret)
+		exit_with_error(-ret);
+
+	umem->buffer = buffer;
+	return umem;
+}
+
+static struct xsk_socket_info *xsk_configure_socket(struct xsk_umem_info *umem)
+{
+	struct xsk_socket_config cfg;
+	struct xsk_socket_info *xsk;
+	int ret;
+	u32 idx;
+	int i;
+
+	xsk = calloc(1, sizeof(*xsk));
+	if (!xsk)
+		exit_with_error(errno);
+
+	xsk->umem = umem;
+	cfg.rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+	cfg.tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+	cfg.libbpf_flags = 0;
+	cfg.xdp_flags = opt_xdp_flags;
+	cfg.bind_flags = opt_xdp_bind_flags;
+	ret = xsk_socket__create(&xsk->xsk, opt_if, opt_queue, umem->umem,
+				 &xsk->rx, &xsk->tx, &cfg);
+	if (ret)
+		exit_with_error(-ret);
+
+	ret = bpf_get_link_xdp_id(opt_ifindex, &prog_id, opt_xdp_flags);
+	if (ret)
+		exit_with_error(-ret);
+
+	ret = xsk_ring_prod__reserve(&xsk->umem->fq,
+				     XSK_RING_PROD__DEFAULT_NUM_DESCS,
+				     &idx);
+	if (ret != XSK_RING_PROD__DEFAULT_NUM_DESCS)
+		exit_with_error(-ret);
+	for (i = 0;
+	     i < XSK_RING_PROD__DEFAULT_NUM_DESCS *
+		     XSK_UMEM__DEFAULT_FRAME_SIZE;
+	     i += XSK_UMEM__DEFAULT_FRAME_SIZE)
+		*xsk_ring_prod__fill_addr(&xsk->umem->fq, idx++) = i;
+	xsk_ring_prod__submit(&xsk->umem->fq,
+			      XSK_RING_PROD__DEFAULT_NUM_DESCS);
+
+	return xsk;
+}
+
 static struct option long_options[] = {
 	{"rxdrop", no_argument, 0, 'r'},
 	{"txonly", no_argument, 0, 't'},
@@ -656,7 +341,6 @@ static struct option long_options[] = {
 	{"interface", required_argument, 0, 'i'},
 	{"queue", required_argument, 0, 'q'},
 	{"poll", no_argument, 0, 'p'},
-	{"shared-buffer", no_argument, 0, 's'},
 	{"xdp-skb", no_argument, 0, 'S'},
 	{"xdp-native", no_argument, 0, 'N'},
 	{"interval", required_argument, 0, 'n'},
@@ -676,7 +360,6 @@ static void usage(const char *prog)
 		"  -i, --interface=n	Run on interface n\n"
 		"  -q, --queue=n	Use queue n (default 0)\n"
 		"  -p, --poll		Use poll syscall\n"
-		"  -s, --shared-buffer	Use shared packet buffer\n"
 		"  -S, --xdp-skb=n	Use XDP skb-mod\n"
 		"  -N, --xdp-native=n	Enfore XDP native mode\n"
 		"  -n, --interval=n	Specify statistics update interval (default 1 sec).\n"
@@ -715,9 +398,6 @@ static void parse_command_line(int argc, char **argv)
 		case 'q':
 			opt_queue = atoi(optarg);
 			break;
-		case 's':
-			opt_shared_packet_buffer = 1;
-			break;
 		case 'p':
 			opt_poll = 1;
 			break;
@@ -751,75 +431,104 @@ static void parse_command_line(int argc, char **argv)
 			opt_if);
 		usage(basename(argv[0]));
 	}
+
 }
 
-static void kick_tx(int fd)
+static void kick_tx(struct xsk_socket_info *xsk)
 {
 	int ret;
 
-	ret = sendto(fd, NULL, 0, MSG_DONTWAIT, NULL, 0);
+	ret = sendto(xsk_socket__fd(xsk->xsk), NULL, 0, MSG_DONTWAIT, NULL, 0);
 	if (ret >= 0 || errno == ENOBUFS || errno == EAGAIN || errno == EBUSY)
 		return;
-	lassert(0);
+	exit_with_error(errno);
 }
 
-static inline void complete_tx_l2fwd(struct xdpsock *xsk)
+static inline void complete_tx_l2fwd(struct xsk_socket_info *xsk)
 {
-	u64 descs[BATCH_SIZE];
+	u32 idx_cq, idx_fq;
 	unsigned int rcvd;
 	size_t ndescs;
 
 	if (!xsk->outstanding_tx)
 		return;
 
-	kick_tx(xsk->sfd);
+	kick_tx(xsk);
 	ndescs = (xsk->outstanding_tx > BATCH_SIZE) ? BATCH_SIZE :
-		 xsk->outstanding_tx;
+		xsk->outstanding_tx;
 
 	/* re-add completed Tx buffers */
-	rcvd = umem_complete_from_kernel(&xsk->umem->cq, descs, ndescs);
+	rcvd = xsk_ring_cons__peek(&xsk->umem->cq, ndescs, &idx_cq);
 	if (rcvd > 0) {
-		umem_fill_to_kernel(&xsk->umem->fq, descs, rcvd);
+		unsigned int i;
+		int ret;
+
+		ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq);
+		while (ret != rcvd) {
+			if (ret < 0)
+				exit_with_error(-ret);
+			ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd,
+						     &idx_fq);
+		}
+		for (i = 0; i < rcvd; i++)
+			*xsk_ring_prod__fill_addr(&xsk->umem->fq, idx_fq++) =
+				*xsk_ring_cons__comp_addr(&xsk->umem->cq,
+							  idx_cq++);
+
+		xsk_ring_prod__submit(&xsk->umem->fq, rcvd);
+		xsk_ring_cons__release(&xsk->umem->cq, rcvd);
 		xsk->outstanding_tx -= rcvd;
 		xsk->tx_npkts += rcvd;
 	}
 }
 
-static inline void complete_tx_only(struct xdpsock *xsk)
+static inline void complete_tx_only(struct xsk_socket_info *xsk)
 {
-	u64 descs[BATCH_SIZE];
 	unsigned int rcvd;
+	u32 idx;
 
 	if (!xsk->outstanding_tx)
 		return;
 
-	kick_tx(xsk->sfd);
+	kick_tx(xsk);
 
-	rcvd = umem_complete_from_kernel(&xsk->umem->cq, descs, BATCH_SIZE);
+	rcvd = xsk_ring_cons__peek(&xsk->umem->cq, BATCH_SIZE, &idx);
 	if (rcvd > 0) {
+		xsk_ring_cons__release(&xsk->umem->cq, rcvd);
 		xsk->outstanding_tx -= rcvd;
 		xsk->tx_npkts += rcvd;
 	}
 }
 
-static void rx_drop(struct xdpsock *xsk)
+static void rx_drop(struct xsk_socket_info *xsk)
 {
-	struct xdp_desc descs[BATCH_SIZE];
 	unsigned int rcvd, i;
+	u32 idx_rx, idx_fq = 0;
+	int ret;
 
-	rcvd = xq_deq(&xsk->rx, descs, BATCH_SIZE);
+	rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE, &idx_rx);
 	if (!rcvd)
 		return;
 
-	for (i = 0; i < rcvd; i++) {
-		char *pkt = xq_get_data(xsk, descs[i].addr);
-
-		hex_dump(pkt, descs[i].len, descs[i].addr);
+	ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq);
+	while (ret != rcvd) {
+		if (ret < 0)
+			exit_with_error(-ret);
+		ret = xsk_ring_prod__reserve(&xsk->umem->fq, rcvd, &idx_fq);
 	}
 
-	xsk->rx_npkts += rcvd;
+	for (i = 0; i < rcvd; i++) {
+		u64 addr = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx)->addr;
+		u32 len = xsk_ring_cons__rx_desc(&xsk->rx, idx_rx++)->len;
+		char *pkt = xsk_umem__get_data(xsk->umem->buffer, addr);
 
-	umem_fill_to_kernel_ex(&xsk->umem->fq, descs, rcvd);
+		hex_dump(pkt, len, addr);
+		*xsk_ring_prod__fill_addr(&xsk->umem->fq, idx_fq++) = addr;
+	}
+
+	xsk_ring_prod__submit(&xsk->umem->fq, rcvd);
+	xsk_ring_cons__release(&xsk->rx, rcvd);
+	xsk->rx_npkts += rcvd;
 }
 
 static void rx_drop_all(void)
@@ -830,7 +539,7 @@ static void rx_drop_all(void)
 	memset(fds, 0, sizeof(fds));
 
 	for (i = 0; i < num_socks; i++) {
-		fds[i].fd = xsks[i]->sfd;
+		fds[i].fd = xsk_socket__fd(xsks[i]->xsk);
 		fds[i].events = POLLIN;
 		timeout = 1000; /* 1sn */
 	}
@@ -847,14 +556,14 @@ static void rx_drop_all(void)
 	}
 }
 
-static void tx_only(struct xdpsock *xsk)
+static void tx_only(struct xsk_socket_info *xsk)
 {
 	int timeout, ret, nfds = 1;
 	struct pollfd fds[nfds + 1];
-	unsigned int idx = 0;
+	u32 idx, frame_nb = 0;
 
 	memset(fds, 0, sizeof(fds));
-	fds[0].fd = xsk->sfd;
+	fds[0].fd = xsk_socket__fd(xsk->xsk);
 	fds[0].events = POLLOUT;
 	timeout = 1000; /* 1sn */
 
@@ -864,50 +573,73 @@ static void tx_only(struct xdpsock *xsk)
 			if (ret <= 0)
 				continue;
 
-			if (fds[0].fd != xsk->sfd ||
-			    !(fds[0].revents & POLLOUT))
+			if (!(fds[0].revents & POLLOUT))
 				continue;
 		}
 
-		if (xq_nb_free(&xsk->tx, BATCH_SIZE) >= BATCH_SIZE) {
-			lassert(xq_enq_tx_only(&xsk->tx, idx, BATCH_SIZE) == 0);
+		if (xsk_ring_prod__reserve(&xsk->tx, BATCH_SIZE, &idx) ==
+		    BATCH_SIZE) {
+			unsigned int i;
 
+			for (i = 0; i < BATCH_SIZE; i++) {
+				xsk_ring_prod__tx_desc(&xsk->tx, idx + i)->addr
+					= (frame_nb + i) <<
+					XSK_UMEM__DEFAULT_FRAME_SHIFT;
+				xsk_ring_prod__tx_desc(&xsk->tx, idx + i)->len =
+					sizeof(pkt_data) - 1;
+			}
+
+			xsk_ring_prod__submit(&xsk->tx, BATCH_SIZE);
 			xsk->outstanding_tx += BATCH_SIZE;
-			idx += BATCH_SIZE;
-			idx %= NUM_FRAMES;
+			frame_nb += BATCH_SIZE;
+			frame_nb %= NUM_FRAMES;
 		}
 
 		complete_tx_only(xsk);
 	}
 }
 
-static void l2fwd(struct xdpsock *xsk)
+static void l2fwd(struct xsk_socket_info *xsk)
 {
 	for (;;) {
-		struct xdp_desc descs[BATCH_SIZE];
 		unsigned int rcvd, i;
+		u32 idx_rx, idx_tx = 0;
 		int ret;
 
 		for (;;) {
 			complete_tx_l2fwd(xsk);
 
-			rcvd = xq_deq(&xsk->rx, descs, BATCH_SIZE);
+			rcvd = xsk_ring_cons__peek(&xsk->rx, BATCH_SIZE,
+						   &idx_rx);
 			if (rcvd > 0)
 				break;
 		}
 
+		ret = xsk_ring_prod__reserve(&xsk->tx, rcvd, &idx_tx);
+		while (ret != rcvd) {
+			if (ret < 0)
+				exit_with_error(-ret);
+			ret = xsk_ring_prod__reserve(&xsk->tx, rcvd, &idx_tx);
+		}
+
 		for (i = 0; i < rcvd; i++) {
-			char *pkt = xq_get_data(xsk, descs[i].addr);
+			u64 addr = xsk_ring_cons__rx_desc(&xsk->rx,
+							  idx_rx)->addr;
+			u32 len = xsk_ring_cons__rx_desc(&xsk->rx,
+							 idx_rx++)->len;
+			char *pkt = xsk_umem__get_data(xsk->umem->buffer, addr);
 
 			swap_mac_addresses(pkt);
 
-			hex_dump(pkt, descs[i].len, descs[i].addr);
+			hex_dump(pkt, len, addr);
+			xsk_ring_prod__tx_desc(&xsk->tx, idx_tx)->addr = addr;
+			xsk_ring_prod__tx_desc(&xsk->tx, idx_tx++)->len = len;
 		}
 
-		xsk->rx_npkts += rcvd;
+		xsk_ring_prod__submit(&xsk->tx, rcvd);
+		xsk_ring_cons__release(&xsk->rx, rcvd);
 
-		ret = xq_enq(&xsk->tx, descs, rcvd);
-		lassert(ret == 0);
+		xsk->rx_npkts += rcvd;
 		xsk->outstanding_tx += rcvd;
 	}
 }
@@ -915,17 +647,10 @@ static void l2fwd(struct xdpsock *xsk)
 int main(int argc, char **argv)
 {
 	struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
-	struct bpf_prog_load_attr prog_load_attr = {
-		.prog_type	= BPF_PROG_TYPE_XDP,
-	};
-	int prog_fd, qidconf_map, xsks_map;
-	struct bpf_prog_info info = {};
-	__u32 info_len = sizeof(info);
-	struct bpf_object *obj;
-	char xdp_filename[256];
-	struct bpf_map *map;
-	int i, ret, key = 0;
+	struct xsk_umem_info *umem;
 	pthread_t pt;
+	void *bufs;
+	int ret;
 
 	parse_command_line(argc, argv);
 
@@ -935,67 +660,22 @@ int main(int argc, char **argv)
 		exit(EXIT_FAILURE);
 	}
 
-	snprintf(xdp_filename, sizeof(xdp_filename), "%s_kern.o", argv[0]);
-	prog_load_attr.file = xdp_filename;
+	ret = posix_memalign(&bufs, getpagesize(), /* PAGE_SIZE aligned */
+			     NUM_FRAMES * XSK_UMEM__DEFAULT_FRAME_SIZE);
+	if (ret)
+		exit_with_error(ret);
 
-	if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
-		exit(EXIT_FAILURE);
-	if (prog_fd < 0) {
-		fprintf(stderr, "ERROR: no program found: %s\n",
-			strerror(prog_fd));
-		exit(EXIT_FAILURE);
-	}
+       /* Create sockets... */
+	umem = xsk_configure_umem(bufs,
+				  NUM_FRAMES * XSK_UMEM__DEFAULT_FRAME_SIZE);
+	xsks[num_socks++] = xsk_configure_socket(umem);
 
-	map = bpf_object__find_map_by_name(obj, "qidconf_map");
-	qidconf_map = bpf_map__fd(map);
-	if (qidconf_map < 0) {
-		fprintf(stderr, "ERROR: no qidconf map found: %s\n",
-			strerror(qidconf_map));
-		exit(EXIT_FAILURE);
-	}
+	if (opt_bench == BENCH_TXONLY) {
+		int i;
 
-	map = bpf_object__find_map_by_name(obj, "xsks_map");
-	xsks_map = bpf_map__fd(map);
-	if (xsks_map < 0) {
-		fprintf(stderr, "ERROR: no xsks map found: %s\n",
-			strerror(xsks_map));
-		exit(EXIT_FAILURE);
-	}
-
-	if (bpf_set_link_xdp_fd(opt_ifindex, prog_fd, opt_xdp_flags) < 0) {
-		fprintf(stderr, "ERROR: link set xdp fd failed\n");
-		exit(EXIT_FAILURE);
-	}
-
-	ret = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
-	if (ret) {
-		printf("can't get prog info - %s\n", strerror(errno));
-		return 1;
-	}
-	prog_id = info.id;
-
-	ret = bpf_map_update_elem(qidconf_map, &key, &opt_queue, 0);
-	if (ret) {
-		fprintf(stderr, "ERROR: bpf_map_update_elem qidconf\n");
-		exit(EXIT_FAILURE);
-	}
-
-	/* Create sockets... */
-	xsks[num_socks++] = xsk_configure(NULL);
-
-#if RR_LB
-	for (i = 0; i < MAX_SOCKS - 1; i++)
-		xsks[num_socks++] = xsk_configure(xsks[0]->umem);
-#endif
-
-	/* ...and insert them into the map. */
-	for (i = 0; i < num_socks; i++) {
-		key = i;
-		ret = bpf_map_update_elem(xsks_map, &key, &xsks[i]->sfd, 0);
-		if (ret) {
-			fprintf(stderr, "ERROR: bpf_map_update_elem %d\n", i);
-			exit(EXIT_FAILURE);
-		}
+		for (i = 0; i < NUM_FRAMES * XSK_UMEM__DEFAULT_FRAME_SIZE;
+		     i += XSK_UMEM__DEFAULT_FRAME_SIZE)
+			(void)gen_eth_frame(umem, i);
 	}
 
 	signal(SIGINT, int_exit);
@@ -1005,7 +685,8 @@ int main(int argc, char **argv)
 	setlocale(LC_ALL, "");
 
 	ret = pthread_create(&pt, NULL, poller, NULL);
-	lassert(ret == 0);
+	if (ret)
+		exit_with_error(ret);
 
 	prev_time = get_nsecs();
 
diff --git a/tools/include/uapi/linux/ethtool.h b/tools/include/uapi/linux/ethtool.h
new file mode 100644
index 000000000000..c86c3e942df9
--- /dev/null
+++ b/tools/include/uapi/linux/ethtool.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * ethtool.h: Defines for Linux ethtool.
+ *
+ * Copyright (C) 1998 David S. Miller (davem@redhat.com)
+ * Copyright 2001 Jeff Garzik <jgarzik@pobox.com>
+ * Portions Copyright 2001 Sun Microsystems (thockin@sun.com)
+ * Portions Copyright 2002 Intel (eli.kupermann@intel.com,
+ *                                christopher.leech@intel.com,
+ *                                scott.feldman@intel.com)
+ * Portions Copyright (C) Sun Microsystems 2008
+ */
+
+#ifndef _UAPI_LINUX_ETHTOOL_H
+#define _UAPI_LINUX_ETHTOOL_H
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/if_ether.h>
+
+#define ETHTOOL_GCHANNELS       0x0000003c /* Get no of channels */
+
+/**
+ * struct ethtool_channels - configuring number of network channel
+ * @cmd: ETHTOOL_{G,S}CHANNELS
+ * @max_rx: Read only. Maximum number of receive channel the driver support.
+ * @max_tx: Read only. Maximum number of transmit channel the driver support.
+ * @max_other: Read only. Maximum number of other channel the driver support.
+ * @max_combined: Read only. Maximum number of combined channel the driver
+ *	support. Set of queues RX, TX or other.
+ * @rx_count: Valid values are in the range 1 to the max_rx.
+ * @tx_count: Valid values are in the range 1 to the max_tx.
+ * @other_count: Valid values are in the range 1 to the max_other.
+ * @combined_count: Valid values are in the range 1 to the max_combined.
+ *
+ * This can be used to configure RX, TX and other channels.
+ */
+
+struct ethtool_channels {
+	__u32	cmd;
+	__u32	max_rx;
+	__u32	max_tx;
+	__u32	max_other;
+	__u32	max_combined;
+	__u32	rx_count;
+	__u32	tx_count;
+	__u32	other_count;
+	__u32	combined_count;
+};
+
+#endif /* _UAPI_LINUX_ETHTOOL_H */
diff --git a/tools/include/uapi/linux/if_xdp.h b/tools/include/uapi/linux/if_xdp.h
new file mode 100644
index 000000000000..caed8b1614ff
--- /dev/null
+++ b/tools/include/uapi/linux/if_xdp.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * if_xdp: XDP socket user-space interface
+ * Copyright(c) 2018 Intel Corporation.
+ *
+ * Author(s): Björn Töpel <bjorn.topel@intel.com>
+ *	      Magnus Karlsson <magnus.karlsson@intel.com>
+ */
+
+#ifndef _LINUX_IF_XDP_H
+#define _LINUX_IF_XDP_H
+
+#include <linux/types.h>
+
+/* Options for the sxdp_flags field */
+#define XDP_SHARED_UMEM	(1 << 0)
+#define XDP_COPY	(1 << 1) /* Force copy-mode */
+#define XDP_ZEROCOPY	(1 << 2) /* Force zero-copy mode */
+
+struct sockaddr_xdp {
+	__u16 sxdp_family;
+	__u16 sxdp_flags;
+	__u32 sxdp_ifindex;
+	__u32 sxdp_queue_id;
+	__u32 sxdp_shared_umem_fd;
+};
+
+struct xdp_ring_offset {
+	__u64 producer;
+	__u64 consumer;
+	__u64 desc;
+};
+
+struct xdp_mmap_offsets {
+	struct xdp_ring_offset rx;
+	struct xdp_ring_offset tx;
+	struct xdp_ring_offset fr; /* Fill */
+	struct xdp_ring_offset cr; /* Completion */
+};
+
+/* XDP socket options */
+#define XDP_MMAP_OFFSETS		1
+#define XDP_RX_RING			2
+#define XDP_TX_RING			3
+#define XDP_UMEM_REG			4
+#define XDP_UMEM_FILL_RING		5
+#define XDP_UMEM_COMPLETION_RING	6
+#define XDP_STATISTICS			7
+
+struct xdp_umem_reg {
+	__u64 addr; /* Start of packet data area */
+	__u64 len; /* Length of packet data area */
+	__u32 chunk_size;
+	__u32 headroom;
+};
+
+struct xdp_statistics {
+	__u64 rx_dropped; /* Dropped for reasons other than invalid desc */
+	__u64 rx_invalid_descs; /* Dropped due to invalid descriptor */
+	__u64 tx_invalid_descs; /* Dropped due to invalid descriptor */
+};
+
+/* Pgoff for mmaping the rings */
+#define XDP_PGOFF_RX_RING			  0
+#define XDP_PGOFF_TX_RING		 0x80000000
+#define XDP_UMEM_PGOFF_FILL_RING	0x100000000ULL
+#define XDP_UMEM_PGOFF_COMPLETION_RING	0x180000000ULL
+
+/* Rx/Tx descriptor */
+struct xdp_desc {
+	__u64 addr;
+	__u32 len;
+	__u32 options;
+};
+
+/* UMEM descriptor is __u64 */
+
+#endif /* _LINUX_IF_XDP_H */
diff --git a/tools/lib/bpf/Build b/tools/lib/bpf/Build
index bfd9bfc82c3b..ee9d5362f35b 100644
--- a/tools/lib/bpf/Build
+++ b/tools/lib/bpf/Build
@@ -1 +1 @@
-libbpf-y := libbpf.o bpf.o nlattr.o btf.o libbpf_errno.o str_error.o netlink.o bpf_prog_linfo.o libbpf_probes.o
+libbpf-y := libbpf.o bpf.o nlattr.o btf.o libbpf_errno.o str_error.o netlink.o bpf_prog_linfo.o libbpf_probes.o xsk.o
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index 847916273696..761691bd72ad 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -164,6 +164,9 @@ $(BPF_IN): force elfdep bpfdep
 	@(test -f ../../include/uapi/linux/if_link.h -a -f ../../../include/uapi/linux/if_link.h && ( \
 	(diff -B ../../include/uapi/linux/if_link.h ../../../include/uapi/linux/if_link.h >/dev/null) || \
 	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_link.h' differs from latest version at 'include/uapi/linux/if_link.h'" >&2 )) || true
+	@(test -f ../../include/uapi/linux/if_xdp.h -a -f ../../../include/uapi/linux/if_xdp.h && ( \
+	(diff -B ../../include/uapi/linux/if_xdp.h ../../../include/uapi/linux/if_xdp.h >/dev/null) || \
+	echo "Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h' differs from latest version at 'include/uapi/linux/if_xdp.h'" >&2 )) || true
 	$(Q)$(MAKE) $(build)=libbpf
 
 $(OUTPUT)libbpf.so: $(BPF_IN)
@@ -174,7 +177,7 @@ $(OUTPUT)libbpf.a: $(BPF_IN)
 	$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
 
 $(OUTPUT)test_libbpf: test_libbpf.cpp $(OUTPUT)libbpf.a
-	$(QUIET_LINK)$(CXX) $^ -lelf -o $@
+	$(QUIET_LINK)$(CXX) $(INCLUDES) $^ -lelf -o $@
 
 check: check_abi
 
diff --git a/tools/lib/bpf/README.rst b/tools/lib/bpf/README.rst
index 607aae40f4ed..5788479384ca 100644
--- a/tools/lib/bpf/README.rst
+++ b/tools/lib/bpf/README.rst
@@ -9,7 +9,7 @@ described here. It's recommended to follow these conventions whenever a
 new function or type is added to keep libbpf API clean and consistent.
 
 All types and functions provided by libbpf API should have one of the
-following prefixes: ``bpf_``, ``btf_``, ``libbpf_``.
+following prefixes: ``bpf_``, ``btf_``, ``libbpf_``, ``xsk_``.
 
 System call wrappers
 --------------------
@@ -62,6 +62,19 @@ Auxiliary functions and types that don't fit well in any of categories
 described above should have ``libbpf_`` prefix, e.g.
 ``libbpf_get_error`` or ``libbpf_prog_type_by_name``.
 
+AF_XDP functions
+-------------------
+
+AF_XDP functions should have an ``xsk_`` prefix, e.g.
+``xsk_umem__get_data`` or ``xsk_umem__create``. The interface consists
+of both low-level ring access functions and high-level configuration
+functions. These can be mixed and matched. Note that these functions
+are not reentrant for performance reasons.
+
+Please take a look at Documentation/networking/af_xdp.rst in the Linux
+kernel source tree on how to use XDP sockets and for some common
+mistakes in case you do not get any traffic up to user space.
+
 libbpf ABI
 ==========
 
diff --git a/tools/lib/bpf/libbpf.map b/tools/lib/bpf/libbpf.map
index 99dfa710c818..778a26702a70 100644
--- a/tools/lib/bpf/libbpf.map
+++ b/tools/lib/bpf/libbpf.map
@@ -147,4 +147,10 @@ LIBBPF_0.0.2 {
 		btf_ext__new;
 		btf_ext__reloc_func_info;
 		btf_ext__reloc_line_info;
+		xsk_umem__create;
+		xsk_socket__create;
+		xsk_umem__delete;
+		xsk_socket__delete;
+		xsk_umem__fd;
+		xsk_socket__fd;
 } LIBBPF_0.0.1;
diff --git a/tools/lib/bpf/xsk.c b/tools/lib/bpf/xsk.c
new file mode 100644
index 000000000000..f98ac82c9aea
--- /dev/null
+++ b/tools/lib/bpf/xsk.c
@@ -0,0 +1,723 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+
+/*
+ * AF_XDP user-space access library.
+ *
+ * Copyright(c) 2018 - 2019 Intel Corporation.
+ *
+ * Author(s): Magnus Karlsson <magnus.karlsson@intel.com>
+ */
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <arpa/inet.h>
+#include <asm/barrier.h>
+#include <linux/compiler.h>
+#include <linux/ethtool.h>
+#include <linux/filter.h>
+#include <linux/if_ether.h>
+#include <linux/if_packet.h>
+#include <linux/if_xdp.h>
+#include <linux/sockios.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+
+#include "bpf.h"
+#include "libbpf.h"
+#include "libbpf_util.h"
+#include "xsk.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
+
+struct xsk_umem {
+	struct xsk_ring_prod *fill;
+	struct xsk_ring_cons *comp;
+	char *umem_area;
+	struct xsk_umem_config config;
+	int fd;
+	int refcount;
+};
+
+struct xsk_socket {
+	struct xsk_ring_cons *rx;
+	struct xsk_ring_prod *tx;
+	__u64 outstanding_tx;
+	struct xsk_umem *umem;
+	struct xsk_socket_config config;
+	int fd;
+	int xsks_map;
+	int ifindex;
+	int prog_fd;
+	int qidconf_map_fd;
+	int xsks_map_fd;
+	__u32 queue_id;
+	char ifname[IFNAMSIZ];
+};
+
+struct xsk_nl_info {
+	bool xdp_prog_attached;
+	int ifindex;
+	int fd;
+};
+
+/* For 32-bit systems, we need to use mmap2 as the offsets are 64-bit.
+ * Unfortunately, it is not part of glibc.
+ */
+static inline void *xsk_mmap(void *addr, size_t length, int prot, int flags,
+			     int fd, __u64 offset)
+{
+#ifdef __NR_mmap2
+	unsigned int page_shift = __builtin_ffs(getpagesize()) - 1;
+	long ret = syscall(__NR_mmap2, addr, length, prot, flags, fd,
+			   (off_t)(offset >> page_shift));
+
+	return (void *)ret;
+#else
+	return mmap(addr, length, prot, flags, fd, offset);
+#endif
+}
+
+int xsk_umem__fd(const struct xsk_umem *umem)
+{
+	return umem ? umem->fd : -EINVAL;
+}
+
+int xsk_socket__fd(const struct xsk_socket *xsk)
+{
+	return xsk ? xsk->fd : -EINVAL;
+}
+
+static bool xsk_page_aligned(void *buffer)
+{
+	unsigned long addr = (unsigned long)buffer;
+
+	return !(addr & (getpagesize() - 1));
+}
+
+static void xsk_set_umem_config(struct xsk_umem_config *cfg,
+				const struct xsk_umem_config *usr_cfg)
+{
+	if (!usr_cfg) {
+		cfg->fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+		cfg->comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+		cfg->frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE;
+		cfg->frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM;
+		return;
+	}
+
+	cfg->fill_size = usr_cfg->fill_size;
+	cfg->comp_size = usr_cfg->comp_size;
+	cfg->frame_size = usr_cfg->frame_size;
+	cfg->frame_headroom = usr_cfg->frame_headroom;
+}
+
+static void xsk_set_xdp_socket_config(struct xsk_socket_config *cfg,
+				      const struct xsk_socket_config *usr_cfg)
+{
+	if (!usr_cfg) {
+		cfg->rx_size = XSK_RING_CONS__DEFAULT_NUM_DESCS;
+		cfg->tx_size = XSK_RING_PROD__DEFAULT_NUM_DESCS;
+		cfg->libbpf_flags = 0;
+		cfg->xdp_flags = 0;
+		cfg->bind_flags = 0;
+		return;
+	}
+
+	cfg->rx_size = usr_cfg->rx_size;
+	cfg->tx_size = usr_cfg->tx_size;
+	cfg->libbpf_flags = usr_cfg->libbpf_flags;
+	cfg->xdp_flags = usr_cfg->xdp_flags;
+	cfg->bind_flags = usr_cfg->bind_flags;
+}
+
+int xsk_umem__create(struct xsk_umem **umem_ptr, void *umem_area, __u64 size,
+		     struct xsk_ring_prod *fill, struct xsk_ring_cons *comp,
+		     const struct xsk_umem_config *usr_config)
+{
+	struct xdp_mmap_offsets off;
+	struct xdp_umem_reg mr;
+	struct xsk_umem *umem;
+	socklen_t optlen;
+	void *map;
+	int err;
+
+	if (!umem_area || !umem_ptr || !fill || !comp)
+		return -EFAULT;
+	if (!size && !xsk_page_aligned(umem_area))
+		return -EINVAL;
+
+	umem = calloc(1, sizeof(*umem));
+	if (!umem)
+		return -ENOMEM;
+
+	umem->fd = socket(AF_XDP, SOCK_RAW, 0);
+	if (umem->fd < 0) {
+		err = -errno;
+		goto out_umem_alloc;
+	}
+
+	umem->umem_area = umem_area;
+	xsk_set_umem_config(&umem->config, usr_config);
+
+	mr.addr = (uintptr_t)umem_area;
+	mr.len = size;
+	mr.chunk_size = umem->config.frame_size;
+	mr.headroom = umem->config.frame_headroom;
+
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_REG, &mr, sizeof(mr));
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_FILL_RING,
+			 &umem->config.fill_size,
+			 sizeof(umem->config.fill_size));
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_COMPLETION_RING,
+			 &umem->config.comp_size,
+			 sizeof(umem->config.comp_size));
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	optlen = sizeof(off);
+	err = getsockopt(umem->fd, SOL_XDP, XDP_MMAP_OFFSETS, &off, &optlen);
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	map = xsk_mmap(NULL, off.fr.desc +
+		       umem->config.fill_size * sizeof(__u64),
+		       PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
+		       umem->fd, XDP_UMEM_PGOFF_FILL_RING);
+	if (map == MAP_FAILED) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	umem->fill = fill;
+	fill->mask = umem->config.fill_size - 1;
+	fill->size = umem->config.fill_size;
+	fill->producer = map + off.fr.producer;
+	fill->consumer = map + off.fr.consumer;
+	fill->ring = map + off.fr.desc;
+	fill->cached_cons = umem->config.fill_size;
+
+	map = xsk_mmap(NULL,
+		       off.cr.desc + umem->config.comp_size * sizeof(__u64),
+		       PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE,
+		       umem->fd, XDP_UMEM_PGOFF_COMPLETION_RING);
+	if (map == MAP_FAILED) {
+		err = -errno;
+		goto out_mmap;
+	}
+
+	umem->comp = comp;
+	comp->mask = umem->config.comp_size - 1;
+	comp->size = umem->config.comp_size;
+	comp->producer = map + off.cr.producer;
+	comp->consumer = map + off.cr.consumer;
+	comp->ring = map + off.cr.desc;
+
+	*umem_ptr = umem;
+	return 0;
+
+out_mmap:
+	munmap(umem->fill,
+	       off.fr.desc + umem->config.fill_size * sizeof(__u64));
+out_socket:
+	close(umem->fd);
+out_umem_alloc:
+	free(umem);
+	return err;
+}
+
+static int xsk_load_xdp_prog(struct xsk_socket *xsk)
+{
+	char bpf_log_buf[BPF_LOG_BUF_SIZE];
+	int err, prog_fd;
+
+	/* This is the C-program:
+	 * SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx)
+	 * {
+	 *     int *qidconf, index = ctx->rx_queue_index;
+	 *
+	 *     // A set entry here means that the correspnding queue_id
+	 *     // has an active AF_XDP socket bound to it.
+	 *     qidconf = bpf_map_lookup_elem(&qidconf_map, &index);
+	 *     if (!qidconf)
+	 *         return XDP_ABORTED;
+	 *
+	 *     if (*qidconf)
+	 *         return bpf_redirect_map(&xsks_map, index, 0);
+	 *
+	 *     return XDP_PASS;
+	 * }
+	 */
+	struct bpf_insn prog[] = {
+		/* r1 = *(u32 *)(r1 + 16) */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 16),
+		/* *(u32 *)(r10 - 4) = r1 */
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_1, -4),
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+		BPF_LD_MAP_FD(BPF_REG_1, xsk->qidconf_map_fd),
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+		BPF_MOV32_IMM(BPF_REG_0, 0),
+		/* if r1 == 0 goto +8 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 8),
+		BPF_MOV32_IMM(BPF_REG_0, 2),
+		/* r1 = *(u32 *)(r1 + 0) */
+		BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 0),
+		/* if r1 == 0 goto +5 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 5),
+		/* r2 = *(u32 *)(r10 - 4) */
+		BPF_LD_MAP_FD(BPF_REG_1, xsk->xsks_map_fd),
+		BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_10, -4),
+		BPF_MOV32_IMM(BPF_REG_3, 0),
+		BPF_EMIT_CALL(BPF_FUNC_redirect_map),
+		/* The jumps are to this instruction */
+		BPF_EXIT_INSN(),
+	};
+	size_t insns_cnt = sizeof(prog) / sizeof(struct bpf_insn);
+
+	prog_fd = bpf_load_program(BPF_PROG_TYPE_XDP, prog, insns_cnt,
+				   "LGPL-2.1 or BSD-2-Clause", 0, bpf_log_buf,
+				   BPF_LOG_BUF_SIZE);
+	if (prog_fd < 0) {
+		pr_warning("BPF log buffer:\n%s", bpf_log_buf);
+		return prog_fd;
+	}
+
+	err = bpf_set_link_xdp_fd(xsk->ifindex, prog_fd, xsk->config.xdp_flags);
+	if (err) {
+		close(prog_fd);
+		return err;
+	}
+
+	xsk->prog_fd = prog_fd;
+	return 0;
+}
+
+static int xsk_get_max_queues(struct xsk_socket *xsk)
+{
+	struct ethtool_channels channels;
+	struct ifreq ifr;
+	int fd, err, ret;
+
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd < 0)
+		return -errno;
+
+	channels.cmd = ETHTOOL_GCHANNELS;
+	ifr.ifr_data = (void *)&channels;
+	strncpy(ifr.ifr_name, xsk->ifname, IFNAMSIZ);
+	err = ioctl(fd, SIOCETHTOOL, &ifr);
+	if (err && errno != EOPNOTSUPP) {
+		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.
+		 */
+		ret = 1;
+	else
+		ret = channels.max_combined;
+
+out:
+	close(fd);
+	return ret;
+}
+
+static int xsk_create_bpf_maps(struct xsk_socket *xsk)
+{
+	int max_queues;
+	int fd;
+
+	max_queues = xsk_get_max_queues(xsk);
+	if (max_queues < 0)
+		return max_queues;
+
+	fd = bpf_create_map_name(BPF_MAP_TYPE_ARRAY, "qidconf_map",
+				 sizeof(int), sizeof(int), max_queues, 0);
+	if (fd < 0)
+		return fd;
+	xsk->qidconf_map_fd = fd;
+
+	fd = bpf_create_map_name(BPF_MAP_TYPE_XSKMAP, "xsks_map",
+				 sizeof(int), sizeof(int), max_queues, 0);
+	if (fd < 0) {
+		close(xsk->qidconf_map_fd);
+		return fd;
+	}
+	xsk->xsks_map_fd = fd;
+
+	return 0;
+}
+
+static void xsk_delete_bpf_maps(struct xsk_socket *xsk)
+{
+	close(xsk->qidconf_map_fd);
+	close(xsk->xsks_map_fd);
+}
+
+static int xsk_update_bpf_maps(struct xsk_socket *xsk, int qidconf_value,
+			       int xsks_value)
+{
+	bool qidconf_map_updated = false, xsks_map_updated = false;
+	struct bpf_prog_info prog_info = {};
+	__u32 prog_len = sizeof(prog_info);
+	struct bpf_map_info map_info;
+	__u32 map_len = sizeof(map_info);
+	__u32 *map_ids;
+	int reset_value = 0;
+	__u32 num_maps;
+	unsigned int i;
+	int err;
+
+	err = bpf_obj_get_info_by_fd(xsk->prog_fd, &prog_info, &prog_len);
+	if (err)
+		return err;
+
+	num_maps = prog_info.nr_map_ids;
+
+	map_ids = calloc(prog_info.nr_map_ids, sizeof(*map_ids));
+	if (!map_ids)
+		return -ENOMEM;
+
+	memset(&prog_info, 0, prog_len);
+	prog_info.nr_map_ids = num_maps;
+	prog_info.map_ids = (__u64)(unsigned long)map_ids;
+
+	err = bpf_obj_get_info_by_fd(xsk->prog_fd, &prog_info, &prog_len);
+	if (err)
+		goto out_map_ids;
+
+	for (i = 0; i < prog_info.nr_map_ids; i++) {
+		int fd;
+
+		fd = bpf_map_get_fd_by_id(map_ids[i]);
+		if (fd < 0) {
+			err = -errno;
+			goto out_maps;
+		}
+
+		err = bpf_obj_get_info_by_fd(fd, &map_info, &map_len);
+		if (err)
+			goto out_maps;
+
+		if (!strcmp(map_info.name, "qidconf_map")) {
+			err = bpf_map_update_elem(fd, &xsk->queue_id,
+						  &qidconf_value, 0);
+			if (err)
+				goto out_maps;
+			qidconf_map_updated = true;
+			xsk->qidconf_map_fd = fd;
+		} else if (!strcmp(map_info.name, "xsks_map")) {
+			err = bpf_map_update_elem(fd, &xsk->queue_id,
+						  &xsks_value, 0);
+			if (err)
+				goto out_maps;
+			xsks_map_updated = true;
+			xsk->xsks_map_fd = fd;
+		}
+
+		if (qidconf_map_updated && xsks_map_updated)
+			break;
+	}
+
+	if (!(qidconf_map_updated && xsks_map_updated)) {
+		err = -ENOENT;
+		goto out_maps;
+	}
+
+	err = 0;
+	goto out_success;
+
+out_maps:
+	if (qidconf_map_updated)
+		(void)bpf_map_update_elem(xsk->qidconf_map_fd, &xsk->queue_id,
+					  &reset_value, 0);
+	if (xsks_map_updated)
+		(void)bpf_map_update_elem(xsk->xsks_map_fd, &xsk->queue_id,
+					  &reset_value, 0);
+out_success:
+	if (qidconf_map_updated)
+		close(xsk->qidconf_map_fd);
+	if (xsks_map_updated)
+		close(xsk->xsks_map_fd);
+out_map_ids:
+	free(map_ids);
+	return err;
+}
+
+static int xsk_setup_xdp_prog(struct xsk_socket *xsk)
+{
+	bool prog_attached = false;
+	__u32 prog_id = 0;
+	int err;
+
+	err = bpf_get_link_xdp_id(xsk->ifindex, &prog_id,
+				  xsk->config.xdp_flags);
+	if (err)
+		return err;
+
+	if (!prog_id) {
+		prog_attached = true;
+		err = xsk_create_bpf_maps(xsk);
+		if (err)
+			return err;
+
+		err = xsk_load_xdp_prog(xsk);
+		if (err)
+			goto out_maps;
+	} else {
+		xsk->prog_fd = bpf_prog_get_fd_by_id(prog_id);
+	}
+
+	err = xsk_update_bpf_maps(xsk, true, xsk->fd);
+	if (err)
+		goto out_load;
+
+	return 0;
+
+out_load:
+	if (prog_attached)
+		close(xsk->prog_fd);
+out_maps:
+	if (prog_attached)
+		xsk_delete_bpf_maps(xsk);
+	return err;
+}
+
+int xsk_socket__create(struct xsk_socket **xsk_ptr, const char *ifname,
+		       __u32 queue_id, struct xsk_umem *umem,
+		       struct xsk_ring_cons *rx, struct xsk_ring_prod *tx,
+		       const struct xsk_socket_config *usr_config)
+{
+	struct sockaddr_xdp sxdp = {};
+	struct xdp_mmap_offsets off;
+	struct xsk_socket *xsk;
+	socklen_t optlen;
+	void *map;
+	int err;
+
+	if (!umem || !xsk_ptr || !rx || !tx)
+		return -EFAULT;
+
+	if (umem->refcount) {
+		pr_warning("Error: shared umems not supported by libbpf.\n");
+		return -EBUSY;
+	}
+
+	xsk = calloc(1, sizeof(*xsk));
+	if (!xsk)
+		return -ENOMEM;
+
+	if (umem->refcount++ > 0) {
+		xsk->fd = socket(AF_XDP, SOCK_RAW, 0);
+		if (xsk->fd < 0) {
+			err = -errno;
+			goto out_xsk_alloc;
+		}
+	} else {
+		xsk->fd = umem->fd;
+	}
+
+	xsk->outstanding_tx = 0;
+	xsk->queue_id = queue_id;
+	xsk->umem = umem;
+	xsk->ifindex = if_nametoindex(ifname);
+	if (!xsk->ifindex) {
+		err = -errno;
+		goto out_socket;
+	}
+	strncpy(xsk->ifname, ifname, IFNAMSIZ);
+
+	xsk_set_xdp_socket_config(&xsk->config, usr_config);
+
+	if (rx) {
+		err = setsockopt(xsk->fd, SOL_XDP, XDP_RX_RING,
+				 &xsk->config.rx_size,
+				 sizeof(xsk->config.rx_size));
+		if (err) {
+			err = -errno;
+			goto out_socket;
+		}
+	}
+	if (tx) {
+		err = setsockopt(xsk->fd, SOL_XDP, XDP_TX_RING,
+				 &xsk->config.tx_size,
+				 sizeof(xsk->config.tx_size));
+		if (err) {
+			err = -errno;
+			goto out_socket;
+		}
+	}
+
+	optlen = sizeof(off);
+	err = getsockopt(xsk->fd, SOL_XDP, XDP_MMAP_OFFSETS, &off, &optlen);
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	if (rx) {
+		map = xsk_mmap(NULL, off.rx.desc +
+			       xsk->config.rx_size * sizeof(struct xdp_desc),
+			       PROT_READ | PROT_WRITE,
+			       MAP_SHARED | MAP_POPULATE,
+			       xsk->fd, XDP_PGOFF_RX_RING);
+		if (map == MAP_FAILED) {
+			err = -errno;
+			goto out_socket;
+		}
+
+		rx->mask = xsk->config.rx_size - 1;
+		rx->size = xsk->config.rx_size;
+		rx->producer = map + off.rx.producer;
+		rx->consumer = map + off.rx.consumer;
+		rx->ring = map + off.rx.desc;
+	}
+	xsk->rx = rx;
+
+	if (tx) {
+		map = xsk_mmap(NULL, off.tx.desc +
+			       xsk->config.tx_size * sizeof(struct xdp_desc),
+			       PROT_READ | PROT_WRITE,
+			       MAP_SHARED | MAP_POPULATE,
+			       xsk->fd, XDP_PGOFF_TX_RING);
+		if (map == MAP_FAILED) {
+			err = -errno;
+			goto out_mmap_rx;
+		}
+
+		tx->mask = xsk->config.tx_size - 1;
+		tx->size = xsk->config.tx_size;
+		tx->producer = map + off.tx.producer;
+		tx->consumer = map + off.tx.consumer;
+		tx->ring = map + off.tx.desc;
+		tx->cached_cons = xsk->config.tx_size;
+	}
+	xsk->tx = tx;
+
+	sxdp.sxdp_family = PF_XDP;
+	sxdp.sxdp_ifindex = xsk->ifindex;
+	sxdp.sxdp_queue_id = xsk->queue_id;
+	sxdp.sxdp_flags = xsk->config.bind_flags;
+
+	err = bind(xsk->fd, (struct sockaddr *)&sxdp, sizeof(sxdp));
+	if (err) {
+		err = -errno;
+		goto out_mmap_tx;
+	}
+
+	if (!(xsk->config.libbpf_flags & XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD)) {
+		err = xsk_setup_xdp_prog(xsk);
+		if (err)
+			goto out_mmap_tx;
+	}
+
+	*xsk_ptr = xsk;
+	return 0;
+
+out_mmap_tx:
+	if (tx)
+		munmap(xsk->tx,
+		       off.tx.desc +
+		       xsk->config.tx_size * sizeof(struct xdp_desc));
+out_mmap_rx:
+	if (rx)
+		munmap(xsk->rx,
+		       off.rx.desc +
+		       xsk->config.rx_size * sizeof(struct xdp_desc));
+out_socket:
+	if (--umem->refcount)
+		close(xsk->fd);
+out_xsk_alloc:
+	free(xsk);
+	return err;
+}
+
+int xsk_umem__delete(struct xsk_umem *umem)
+{
+	struct xdp_mmap_offsets off;
+	socklen_t optlen;
+	int err;
+
+	if (!umem)
+		return 0;
+
+	if (umem->refcount)
+		return -EBUSY;
+
+	optlen = sizeof(off);
+	err = getsockopt(umem->fd, SOL_XDP, XDP_MMAP_OFFSETS, &off, &optlen);
+	if (!err) {
+		munmap(umem->fill->ring,
+		       off.fr.desc + umem->config.fill_size * sizeof(__u64));
+		munmap(umem->comp->ring,
+		       off.cr.desc + umem->config.comp_size * sizeof(__u64));
+	}
+
+	close(umem->fd);
+	free(umem);
+
+	return 0;
+}
+
+void xsk_socket__delete(struct xsk_socket *xsk)
+{
+	struct xdp_mmap_offsets off;
+	socklen_t optlen;
+	int err;
+
+	if (!xsk)
+		return;
+
+	(void)xsk_update_bpf_maps(xsk, 0, 0);
+
+	optlen = sizeof(off);
+	err = getsockopt(xsk->fd, SOL_XDP, XDP_MMAP_OFFSETS, &off, &optlen);
+	if (!err) {
+		if (xsk->rx)
+			munmap(xsk->rx->ring,
+			       off.rx.desc +
+			       xsk->config.rx_size * sizeof(struct xdp_desc));
+		if (xsk->tx)
+			munmap(xsk->tx->ring,
+			       off.tx.desc +
+			       xsk->config.tx_size * sizeof(struct xdp_desc));
+	}
+
+	xsk->umem->refcount--;
+	/* Do not close an fd that also has an associated umem connected
+	 * to it.
+	 */
+	if (xsk->fd != xsk->umem->fd)
+		close(xsk->fd);
+	free(xsk);
+}
diff --git a/tools/lib/bpf/xsk.h b/tools/lib/bpf/xsk.h
new file mode 100644
index 000000000000..a497f00e2962
--- /dev/null
+++ b/tools/lib/bpf/xsk.h
@@ -0,0 +1,203 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+
+/*
+ * AF_XDP user-space access library.
+ *
+ * Copyright(c) 2018 - 2019 Intel Corporation.
+ *
+ * Author(s): Magnus Karlsson <magnus.karlsson@intel.com>
+ */
+
+#ifndef __LIBBPF_XSK_H
+#define __LIBBPF_XSK_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <linux/if_xdp.h>
+
+#include "libbpf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Do not access these members directly. Use the functions below. */
+#define DEFINE_XSK_RING(name) \
+struct name { \
+	__u32 cached_prod; \
+	__u32 cached_cons; \
+	__u32 mask; \
+	__u32 size; \
+	__u32 *producer; \
+	__u32 *consumer; \
+	void *ring; \
+}
+
+DEFINE_XSK_RING(xsk_ring_prod);
+DEFINE_XSK_RING(xsk_ring_cons);
+
+struct xsk_umem;
+struct xsk_socket;
+
+static inline __u64 *xsk_ring_prod__fill_addr(struct xsk_ring_prod *fill,
+					      __u32 idx)
+{
+	__u64 *addrs = (__u64 *)fill->ring;
+
+	return &addrs[idx & fill->mask];
+}
+
+static inline const __u64 *
+xsk_ring_cons__comp_addr(const struct xsk_ring_cons *comp, __u32 idx)
+{
+	const __u64 *addrs = (const __u64 *)comp->ring;
+
+	return &addrs[idx & comp->mask];
+}
+
+static inline struct xdp_desc *xsk_ring_prod__tx_desc(struct xsk_ring_prod *tx,
+						      __u32 idx)
+{
+	struct xdp_desc *descs = (struct xdp_desc *)tx->ring;
+
+	return &descs[idx & tx->mask];
+}
+
+static inline const struct xdp_desc *
+xsk_ring_cons__rx_desc(const struct xsk_ring_cons *rx, __u32 idx)
+{
+	const struct xdp_desc *descs = (const struct xdp_desc *)rx->ring;
+
+	return &descs[idx & rx->mask];
+}
+
+static inline __u32 xsk_prod_nb_free(struct xsk_ring_prod *r, __u32 nb)
+{
+	__u32 free_entries = r->cached_cons - r->cached_prod;
+
+	if (free_entries >= nb)
+		return free_entries;
+
+	/* Refresh the local tail pointer.
+	 * cached_cons is r->size bigger than the real consumer pointer so
+	 * that this addition can be avoided in the more frequently
+	 * executed code that computs free_entries in the beginning of
+	 * this function. Without this optimization it whould have been
+	 * free_entries = r->cached_prod - r->cached_cons + r->size.
+	 */
+	r->cached_cons = *r->consumer + r->size;
+
+	return r->cached_cons - r->cached_prod;
+}
+
+static inline __u32 xsk_cons_nb_avail(struct xsk_ring_cons *r, __u32 nb)
+{
+	__u32 entries = r->cached_prod - r->cached_cons;
+
+	if (entries == 0) {
+		r->cached_prod = *r->producer;
+		entries = r->cached_prod - r->cached_cons;
+	}
+
+	return (entries > nb) ? nb : entries;
+}
+
+static inline size_t xsk_ring_prod__reserve(struct xsk_ring_prod *prod,
+					    size_t nb, __u32 *idx)
+{
+	if (unlikely(xsk_prod_nb_free(prod, nb) < nb))
+		return 0;
+
+	*idx = prod->cached_prod;
+	prod->cached_prod += nb;
+
+	return nb;
+}
+
+static inline void xsk_ring_prod__submit(struct xsk_ring_prod *prod, size_t nb)
+{
+	/* Make sure everything has been written to the ring before signalling
+	 * this to the kernel.
+	 */
+	smp_wmb();
+
+	*prod->producer += nb;
+}
+
+static inline size_t xsk_ring_cons__peek(struct xsk_ring_cons *cons,
+					 size_t nb, __u32 *idx)
+{
+	size_t entries = xsk_cons_nb_avail(cons, nb);
+
+	if (likely(entries > 0)) {
+		/* Make sure we do not speculatively read the data before
+		 * we have received the packet buffers from the ring.
+		 */
+		smp_rmb();
+
+		*idx = cons->cached_cons;
+		cons->cached_cons += entries;
+	}
+
+	return entries;
+}
+
+static inline void xsk_ring_cons__release(struct xsk_ring_cons *cons, size_t nb)
+{
+	*cons->consumer += nb;
+}
+
+static inline void *xsk_umem__get_data(void *umem_area, __u64 addr)
+{
+	return &((char *)umem_area)[addr];
+}
+
+LIBBPF_API int xsk_umem__fd(const struct xsk_umem *umem);
+LIBBPF_API int xsk_socket__fd(const struct xsk_socket *xsk);
+
+#define XSK_RING_CONS__DEFAULT_NUM_DESCS      2048
+#define XSK_RING_PROD__DEFAULT_NUM_DESCS      2048
+#define XSK_UMEM__DEFAULT_FRAME_SHIFT    11 /* 2048 bytes */
+#define XSK_UMEM__DEFAULT_FRAME_SIZE     (1 << XSK_UMEM__DEFAULT_FRAME_SHIFT)
+#define XSK_UMEM__DEFAULT_FRAME_HEADROOM 0
+
+struct xsk_umem_config {
+	__u32 fill_size;
+	__u32 comp_size;
+	__u32 frame_size;
+	__u32 frame_headroom;
+};
+
+/* Flags for the libbpf_flags field. */
+#define XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD (1 << 0)
+
+struct xsk_socket_config {
+	__u32 rx_size;
+	__u32 tx_size;
+	__u32 libbpf_flags;
+	__u32 xdp_flags;
+	__u16 bind_flags;
+};
+
+/* Set config to NULL to get the default configuration. */
+LIBBPF_API int xsk_umem__create(struct xsk_umem **umem,
+				void *umem_area, __u64 size,
+				struct xsk_ring_prod *fill,
+				struct xsk_ring_cons *comp,
+				const struct xsk_umem_config *config);
+LIBBPF_API int xsk_socket__create(struct xsk_socket **xsk,
+				  const char *ifname, __u32 queue_id,
+				  struct xsk_umem *umem,
+				  struct xsk_ring_cons *rx,
+				  struct xsk_ring_prod *tx,
+				  const struct xsk_socket_config *config);
+
+/* Returns 0 for success and -EBUSY if the umem is still in use. */
+LIBBPF_API int xsk_umem__delete(struct xsk_umem *umem);
+LIBBPF_API void xsk_socket__delete(struct xsk_socket *xsk);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* __LIBBPF_XSK_H */