1 files changed, 0 insertions, 992 deletions

diff --git a/samples/bpf/xdp_redirect_cpu_user.c b/samples/bpf/xdp_redirect_cpu_user.c
deleted file mode 100644
index 004c0622c913..000000000000
--- a/samples/bpf/xdp_redirect_cpu_user.c
+++ /dev/null
@@ -1,992 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* Copyright(c) 2017 Jesper Dangaard Brouer, Red Hat, Inc.
- */
-static const char *__doc__ =
-	" XDP redirect with a CPU-map type \"BPF_MAP_TYPE_CPUMAP\"";
-
-#include <errno.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <string.h>
-#include <unistd.h>
-#include <locale.h>
-#include <sys/resource.h>
-#include <sys/sysinfo.h>
-#include <getopt.h>
-#include <net/if.h>
-#include <time.h>
-#include <linux/limits.h>
-
-#include <arpa/inet.h>
-#include <linux/if_link.h>
-
-/* How many xdp_progs are defined in _kern.c */
-#define MAX_PROG 6
-
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-
-#include "bpf_util.h"
-
-static int ifindex = -1;
-static char ifname_buf[IF_NAMESIZE];
-static char *ifname;
-static __u32 prog_id;
-
-static __u32 xdp_flags = XDP_FLAGS_UPDATE_IF_NOEXIST;
-static int n_cpus;
-static int cpu_map_fd;
-static int rx_cnt_map_fd;
-static int redirect_err_cnt_map_fd;
-static int cpumap_enqueue_cnt_map_fd;
-static int cpumap_kthread_cnt_map_fd;
-static int cpus_available_map_fd;
-static int cpus_count_map_fd;
-static int cpus_iterator_map_fd;
-static int exception_cnt_map_fd;
-
-#define NUM_TP 5
-struct bpf_link *tp_links[NUM_TP] = { 0 };
-static int tp_cnt = 0;
-
-/* Exit return codes */
-#define EXIT_OK		0
-#define EXIT_FAIL		1
-#define EXIT_FAIL_OPTION	2
-#define EXIT_FAIL_XDP		3
-#define EXIT_FAIL_BPF		4
-#define EXIT_FAIL_MEM		5
-
-static const struct option long_options[] = {
-	{"help",	no_argument,		NULL, 'h' },
-	{"dev",		required_argument,	NULL, 'd' },
-	{"skb-mode",	no_argument,		NULL, 'S' },
-	{"sec",		required_argument,	NULL, 's' },
-	{"progname",	required_argument,	NULL, 'p' },
-	{"qsize",	required_argument,	NULL, 'q' },
-	{"cpu",		required_argument,	NULL, 'c' },
-	{"stress-mode", no_argument,		NULL, 'x' },
-	{"no-separators", no_argument,		NULL, 'z' },
-	{"force",	no_argument,		NULL, 'F' },
-	{"mprog-disable", no_argument,		NULL, 'n' },
-	{"mprog-name",	required_argument,	NULL, 'e' },
-	{"mprog-filename", required_argument,	NULL, 'f' },
-	{"redirect-device", required_argument,	NULL, 'r' },
-	{"redirect-map", required_argument,	NULL, 'm' },
-	{0, 0, NULL,  0 }
-};
-
-static void int_exit(int sig)
-{
-	__u32 curr_prog_id = 0;
-
-	if (ifindex > -1) {
-		if (bpf_get_link_xdp_id(ifindex, &curr_prog_id, xdp_flags)) {
-			printf("bpf_get_link_xdp_id failed\n");
-			exit(EXIT_FAIL);
-		}
-		if (prog_id == curr_prog_id) {
-			fprintf(stderr,
-				"Interrupted: Removing XDP program on ifindex:%d device:%s\n",
-				ifindex, ifname);
-			bpf_set_link_xdp_fd(ifindex, -1, xdp_flags);
-		} else if (!curr_prog_id) {
-			printf("couldn't find a prog id on a given iface\n");
-		} else {
-			printf("program on interface changed, not removing\n");
-		}
-	}
-	/* Detach tracepoints */
-	while (tp_cnt)
-		bpf_link__destroy(tp_links[--tp_cnt]);
-
-	exit(EXIT_OK);
-}
-
-static void print_avail_progs(struct bpf_object *obj)
-{
-	struct bpf_program *pos;
-
-	bpf_object__for_each_program(pos, obj) {
-		if (bpf_program__is_xdp(pos))
-			printf(" %s\n", bpf_program__title(pos, false));
-	}
-}
-
-static void usage(char *argv[], struct bpf_object *obj)
-{
-	int i;
-
-	printf("\nDOCUMENTATION:\n%s\n", __doc__);
-	printf("\n");
-	printf(" Usage: %s (options-see-below)\n", argv[0]);
-	printf(" Listing options:\n");
-	for (i = 0; long_options[i].name != 0; i++) {
-		printf(" --%-12s", long_options[i].name);
-		if (long_options[i].flag != NULL)
-			printf(" flag (internal value:%d)",
-				*long_options[i].flag);
-		else
-			printf(" short-option: -%c",
-				long_options[i].val);
-		printf("\n");
-	}
-	printf("\n Programs to be used for --progname:\n");
-	print_avail_progs(obj);
-	printf("\n");
-}
-
-/* gettime returns the current time of day in nanoseconds.
- * Cost: clock_gettime (ns) => 26ns (CLOCK_MONOTONIC)
- *       clock_gettime (ns) =>  9ns (CLOCK_MONOTONIC_COARSE)
- */
-#define NANOSEC_PER_SEC 1000000000 /* 10^9 */
-static __u64 gettime(void)
-{
-	struct timespec t;
-	int res;
-
-	res = clock_gettime(CLOCK_MONOTONIC, &t);
-	if (res < 0) {
-		fprintf(stderr, "Error with gettimeofday! (%i)\n", res);
-		exit(EXIT_FAIL);
-	}
-	return (__u64) t.tv_sec * NANOSEC_PER_SEC + t.tv_nsec;
-}
-
-/* Common stats data record shared with _kern.c */
-struct datarec {
-	__u64 processed;
-	__u64 dropped;
-	__u64 issue;
-	__u64 xdp_pass;
-	__u64 xdp_drop;
-	__u64 xdp_redirect;
-};
-struct record {
-	__u64 timestamp;
-	struct datarec total;
-	struct datarec *cpu;
-};
-struct stats_record {
-	struct record rx_cnt;
-	struct record redir_err;
-	struct record kthread;
-	struct record exception;
-	struct record enq[];
-};
-
-static bool map_collect_percpu(int fd, __u32 key, struct record *rec)
-{
-	/* For percpu maps, userspace gets a value per possible CPU */
-	unsigned int nr_cpus = bpf_num_possible_cpus();
-	struct datarec values[nr_cpus];
-	__u64 sum_xdp_redirect = 0;
-	__u64 sum_xdp_pass = 0;
-	__u64 sum_xdp_drop = 0;
-	__u64 sum_processed = 0;
-	__u64 sum_dropped = 0;
-	__u64 sum_issue = 0;
-	int i;
-
-	if ((bpf_map_lookup_elem(fd, &key, values)) != 0) {
-		fprintf(stderr,
-			"ERR: bpf_map_lookup_elem failed key:0x%X\n", key);
-		return false;
-	}
-	/* Get time as close as possible to reading map contents */
-	rec->timestamp = gettime();
-
-	/* Record and sum values from each CPU */
-	for (i = 0; i < nr_cpus; i++) {
-		rec->cpu[i].processed = values[i].processed;
-		sum_processed        += values[i].processed;
-		rec->cpu[i].dropped = values[i].dropped;
-		sum_dropped        += values[i].dropped;
-		rec->cpu[i].issue = values[i].issue;
-		sum_issue        += values[i].issue;
-		rec->cpu[i].xdp_pass = values[i].xdp_pass;
-		sum_xdp_pass += values[i].xdp_pass;
-		rec->cpu[i].xdp_drop = values[i].xdp_drop;
-		sum_xdp_drop += values[i].xdp_drop;
-		rec->cpu[i].xdp_redirect = values[i].xdp_redirect;
-		sum_xdp_redirect += values[i].xdp_redirect;
-	}
-	rec->total.processed = sum_processed;
-	rec->total.dropped   = sum_dropped;
-	rec->total.issue     = sum_issue;
-	rec->total.xdp_pass  = sum_xdp_pass;
-	rec->total.xdp_drop  = sum_xdp_drop;
-	rec->total.xdp_redirect = sum_xdp_redirect;
-	return true;
-}
-
-static struct datarec *alloc_record_per_cpu(void)
-{
-	unsigned int nr_cpus = bpf_num_possible_cpus();
-	struct datarec *array;
-
-	array = calloc(nr_cpus, sizeof(struct datarec));
-	if (!array) {
-		fprintf(stderr, "Mem alloc error (nr_cpus:%u)\n", nr_cpus);
-		exit(EXIT_FAIL_MEM);
-	}
-	return array;
-}
-
-static struct stats_record *alloc_stats_record(void)
-{
-	struct stats_record *rec;
-	int i, size;
-
-	size = sizeof(*rec) + n_cpus * sizeof(struct record);
-	rec = malloc(size);
-	if (!rec) {
-		fprintf(stderr, "Mem alloc error\n");
-		exit(EXIT_FAIL_MEM);
-	}
-	memset(rec, 0, size);
-	rec->rx_cnt.cpu    = alloc_record_per_cpu();
-	rec->redir_err.cpu = alloc_record_per_cpu();
-	rec->kthread.cpu   = alloc_record_per_cpu();
-	rec->exception.cpu = alloc_record_per_cpu();
-	for (i = 0; i < n_cpus; i++)
-		rec->enq[i].cpu = alloc_record_per_cpu();
-
-	return rec;
-}
-
-static void free_stats_record(struct stats_record *r)
-{
-	int i;
-
-	for (i = 0; i < n_cpus; i++)
-		free(r->enq[i].cpu);
-	free(r->exception.cpu);
-	free(r->kthread.cpu);
-	free(r->redir_err.cpu);
-	free(r->rx_cnt.cpu);
-	free(r);
-}
-
-static double calc_period(struct record *r, struct record *p)
-{
-	double period_ = 0;
-	__u64 period = 0;
-
-	period = r->timestamp - p->timestamp;
-	if (period > 0)
-		period_ = ((double) period / NANOSEC_PER_SEC);
-
-	return period_;
-}
-
-static __u64 calc_pps(struct datarec *r, struct datarec *p, double period_)
-{
-	__u64 packets = 0;
-	__u64 pps = 0;
-
-	if (period_ > 0) {
-		packets = r->processed - p->processed;
-		pps = packets / period_;
-	}
-	return pps;
-}
-
-static __u64 calc_drop_pps(struct datarec *r, struct datarec *p, double period_)
-{
-	__u64 packets = 0;
-	__u64 pps = 0;
-
-	if (period_ > 0) {
-		packets = r->dropped - p->dropped;
-		pps = packets / period_;
-	}
-	return pps;
-}
-
-static __u64 calc_errs_pps(struct datarec *r,
-			    struct datarec *p, double period_)
-{
-	__u64 packets = 0;
-	__u64 pps = 0;
-
-	if (period_ > 0) {
-		packets = r->issue - p->issue;
-		pps = packets / period_;
-	}
-	return pps;
-}
-
-static void calc_xdp_pps(struct datarec *r, struct datarec *p,
-			 double *xdp_pass, double *xdp_drop,
-			 double *xdp_redirect, double period_)
-{
-	*xdp_pass = 0, *xdp_drop = 0, *xdp_redirect = 0;
-	if (period_ > 0) {
-		*xdp_redirect = (r->xdp_redirect - p->xdp_redirect) / period_;
-		*xdp_pass = (r->xdp_pass - p->xdp_pass) / period_;
-		*xdp_drop = (r->xdp_drop - p->xdp_drop) / period_;
-	}
-}
-
-static void stats_print(struct stats_record *stats_rec,
-			struct stats_record *stats_prev,
-			char *prog_name, char *mprog_name, int mprog_fd)
-{
-	unsigned int nr_cpus = bpf_num_possible_cpus();
-	double pps = 0, drop = 0, err = 0;
-	bool mprog_enabled = false;
-	struct record *rec, *prev;
-	int to_cpu;
-	double t;
-	int i;
-
-	if (mprog_fd > 0)
-		mprog_enabled = true;
-
-	/* Header */
-	printf("Running XDP/eBPF prog_name:%s\n", prog_name);
-	printf("%-15s %-7s %-14s %-11s %-9s\n",
-	       "XDP-cpumap", "CPU:to", "pps", "drop-pps", "extra-info");
-
-	/* XDP rx_cnt */
-	{
-		char *fmt_rx = "%-15s %-7d %'-14.0f %'-11.0f %'-10.0f %s\n";
-		char *fm2_rx = "%-15s %-7s %'-14.0f %'-11.0f\n";
-		char *errstr = "";
-
-		rec  = &stats_rec->rx_cnt;
-		prev = &stats_prev->rx_cnt;
-		t = calc_period(rec, prev);
-		for (i = 0; i < nr_cpus; i++) {
-			struct datarec *r = &rec->cpu[i];
-			struct datarec *p = &prev->cpu[i];
-
-			pps = calc_pps(r, p, t);
-			drop = calc_drop_pps(r, p, t);
-			err  = calc_errs_pps(r, p, t);
-			if (err > 0)
-				errstr = "cpu-dest/err";
-			if (pps > 0)
-				printf(fmt_rx, "XDP-RX",
-					i, pps, drop, err, errstr);
-		}
-		pps  = calc_pps(&rec->total, &prev->total, t);
-		drop = calc_drop_pps(&rec->total, &prev->total, t);
-		err  = calc_errs_pps(&rec->total, &prev->total, t);
-		printf(fm2_rx, "XDP-RX", "total", pps, drop);
-	}
-
-	/* cpumap enqueue stats */
-	for (to_cpu = 0; to_cpu < n_cpus; to_cpu++) {
-		char *fmt = "%-15s %3d:%-3d %'-14.0f %'-11.0f %'-10.2f %s\n";
-		char *fm2 = "%-15s %3s:%-3d %'-14.0f %'-11.0f %'-10.2f %s\n";
-		char *errstr = "";
-
-		rec  =  &stats_rec->enq[to_cpu];
-		prev = &stats_prev->enq[to_cpu];
-		t = calc_period(rec, prev);
-		for (i = 0; i < nr_cpus; i++) {
-			struct datarec *r = &rec->cpu[i];
-			struct datarec *p = &prev->cpu[i];
-
-			pps  = calc_pps(r, p, t);
-			drop = calc_drop_pps(r, p, t);
-			err  = calc_errs_pps(r, p, t);
-			if (err > 0) {
-				errstr = "bulk-average";
-				err = pps / err; /* calc average bulk size */
-			}
-			if (pps > 0)
-				printf(fmt, "cpumap-enqueue",
-				       i, to_cpu, pps, drop, err, errstr);
-		}
-		pps = calc_pps(&rec->total, &prev->total, t);
-		if (pps > 0) {
-			drop = calc_drop_pps(&rec->total, &prev->total, t);
-			err  = calc_errs_pps(&rec->total, &prev->total, t);
-			if (err > 0) {
-				errstr = "bulk-average";
-				err = pps / err; /* calc average bulk size */
-			}
-			printf(fm2, "cpumap-enqueue",
-			       "sum", to_cpu, pps, drop, err, errstr);
-		}
-	}
-
-	/* cpumap kthread stats */
-	{
-		char *fmt_k = "%-15s %-7d %'-14.0f %'-11.0f %'-10.0f %s\n";
-		char *fm2_k = "%-15s %-7s %'-14.0f %'-11.0f %'-10.0f %s\n";
-		char *e_str = "";
-
-		rec  = &stats_rec->kthread;
-		prev = &stats_prev->kthread;
-		t = calc_period(rec, prev);
-		for (i = 0; i < nr_cpus; i++) {
-			struct datarec *r = &rec->cpu[i];
-			struct datarec *p = &prev->cpu[i];
-
-			pps  = calc_pps(r, p, t);
-			drop = calc_drop_pps(r, p, t);
-			err  = calc_errs_pps(r, p, t);
-			if (err > 0)
-				e_str = "sched";
-			if (pps > 0)
-				printf(fmt_k, "cpumap_kthread",
-				       i, pps, drop, err, e_str);
-		}
-		pps = calc_pps(&rec->total, &prev->total, t);
-		drop = calc_drop_pps(&rec->total, &prev->total, t);
-		err  = calc_errs_pps(&rec->total, &prev->total, t);
-		if (err > 0)
-			e_str = "sched-sum";
-		printf(fm2_k, "cpumap_kthread", "total", pps, drop, err, e_str);
-	}
-
-	/* XDP redirect err tracepoints (very unlikely) */
-	{
-		char *fmt_err = "%-15s %-7d %'-14.0f %'-11.0f\n";
-		char *fm2_err = "%-15s %-7s %'-14.0f %'-11.0f\n";
-
-		rec  = &stats_rec->redir_err;
-		prev = &stats_prev->redir_err;
-		t = calc_period(rec, prev);
-		for (i = 0; i < nr_cpus; i++) {
-			struct datarec *r = &rec->cpu[i];
-			struct datarec *p = &prev->cpu[i];
-
-			pps  = calc_pps(r, p, t);
-			drop = calc_drop_pps(r, p, t);
-			if (pps > 0)
-				printf(fmt_err, "redirect_err", i, pps, drop);
-		}
-		pps = calc_pps(&rec->total, &prev->total, t);
-		drop = calc_drop_pps(&rec->total, &prev->total, t);
-		printf(fm2_err, "redirect_err", "total", pps, drop);
-	}
-
-	/* XDP general exception tracepoints */
-	{
-		char *fmt_err = "%-15s %-7d %'-14.0f %'-11.0f\n";
-		char *fm2_err = "%-15s %-7s %'-14.0f %'-11.0f\n";
-
-		rec  = &stats_rec->exception;
-		prev = &stats_prev->exception;
-		t = calc_period(rec, prev);
-		for (i = 0; i < nr_cpus; i++) {
-			struct datarec *r = &rec->cpu[i];
-			struct datarec *p = &prev->cpu[i];
-
-			pps  = calc_pps(r, p, t);
-			drop = calc_drop_pps(r, p, t);
-			if (pps > 0)
-				printf(fmt_err, "xdp_exception", i, pps, drop);
-		}
-		pps = calc_pps(&rec->total, &prev->total, t);
-		drop = calc_drop_pps(&rec->total, &prev->total, t);
-		printf(fm2_err, "xdp_exception", "total", pps, drop);
-	}
-
-	/* CPUMAP attached XDP program that runs on remote/destination CPU */
-	if (mprog_enabled) {
-		char *fmt_k = "%-15s %-7d %'-14.0f %'-11.0f %'-10.0f\n";
-		char *fm2_k = "%-15s %-7s %'-14.0f %'-11.0f %'-10.0f\n";
-		double xdp_pass, xdp_drop, xdp_redirect;
-
-		printf("\n2nd remote XDP/eBPF prog_name: %s\n", mprog_name);
-		printf("%-15s %-7s %-14s %-11s %-9s\n",
-		       "XDP-cpumap", "CPU:to", "xdp-pass", "xdp-drop", "xdp-redir");
-
-		rec  = &stats_rec->kthread;
-		prev = &stats_prev->kthread;
-		t = calc_period(rec, prev);
-		for (i = 0; i < nr_cpus; i++) {
-			struct datarec *r = &rec->cpu[i];
-			struct datarec *p = &prev->cpu[i];
-
-			calc_xdp_pps(r, p, &xdp_pass, &xdp_drop,
-				     &xdp_redirect, t);
-			if (xdp_pass > 0 || xdp_drop > 0 || xdp_redirect > 0)
-				printf(fmt_k, "xdp-in-kthread", i, xdp_pass, xdp_drop,
-				       xdp_redirect);
-		}
-		calc_xdp_pps(&rec->total, &prev->total, &xdp_pass, &xdp_drop,
-			     &xdp_redirect, t);
-		printf(fm2_k, "xdp-in-kthread", "total", xdp_pass, xdp_drop, xdp_redirect);
-	}
-
-	printf("\n");
-	fflush(stdout);
-}
-
-static void stats_collect(struct stats_record *rec)
-{
-	int fd, i;
-
-	fd = rx_cnt_map_fd;
-	map_collect_percpu(fd, 0, &rec->rx_cnt);
-
-	fd = redirect_err_cnt_map_fd;
-	map_collect_percpu(fd, 1, &rec->redir_err);
-
-	fd = cpumap_enqueue_cnt_map_fd;
-	for (i = 0; i < n_cpus; i++)
-		map_collect_percpu(fd, i, &rec->enq[i]);
-
-	fd = cpumap_kthread_cnt_map_fd;
-	map_collect_percpu(fd, 0, &rec->kthread);
-
-	fd = exception_cnt_map_fd;
-	map_collect_percpu(fd, 0, &rec->exception);
-}
-
-
-/* Pointer swap trick */
-static inline void swap(struct stats_record **a, struct stats_record **b)
-{
-	struct stats_record *tmp;
-
-	tmp = *a;
-	*a = *b;
-	*b = tmp;
-}
-
-static int create_cpu_entry(__u32 cpu, struct bpf_cpumap_val *value,
-			    __u32 avail_idx, bool new)
-{
-	__u32 curr_cpus_count = 0;
-	__u32 key = 0;
-	int ret;
-
-	/* Add a CPU entry to cpumap, as this allocate a cpu entry in
-	 * the kernel for the cpu.
-	 */
-	ret = bpf_map_update_elem(cpu_map_fd, &cpu, value, 0);
-	if (ret) {
-		fprintf(stderr, "Create CPU entry failed (err:%d)\n", ret);
-		exit(EXIT_FAIL_BPF);
-	}
-
-	/* Inform bpf_prog's that a new CPU is available to select
-	 * from via some control maps.
-	 */
-	ret = bpf_map_update_elem(cpus_available_map_fd, &avail_idx, &cpu, 0);
-	if (ret) {
-		fprintf(stderr, "Add to avail CPUs failed\n");
-		exit(EXIT_FAIL_BPF);
-	}
-
-	/* When not replacing/updating existing entry, bump the count */
-	ret = bpf_map_lookup_elem(cpus_count_map_fd, &key, &curr_cpus_count);
-	if (ret) {
-		fprintf(stderr, "Failed reading curr cpus_count\n");
-		exit(EXIT_FAIL_BPF);
-	}
-	if (new) {
-		curr_cpus_count++;
-		ret = bpf_map_update_elem(cpus_count_map_fd, &key,
-					  &curr_cpus_count, 0);
-		if (ret) {
-			fprintf(stderr, "Failed write curr cpus_count\n");
-			exit(EXIT_FAIL_BPF);
-		}
-	}
-	/* map_fd[7] = cpus_iterator */
-	printf("%s CPU:%u as idx:%u qsize:%d prog_fd: %d (cpus_count:%u)\n",
-	       new ? "Add-new":"Replace", cpu, avail_idx,
-	       value->qsize, value->bpf_prog.fd, curr_cpus_count);
-
-	return 0;
-}
-
-/* CPUs are zero-indexed. Thus, add a special sentinel default value
- * in map cpus_available to mark CPU index'es not configured
- */
-static void mark_cpus_unavailable(void)
-{
-	__u32 invalid_cpu = n_cpus;
-	int ret, i;
-
-	for (i = 0; i < n_cpus; i++) {
-		ret = bpf_map_update_elem(cpus_available_map_fd, &i,
-					  &invalid_cpu, 0);
-		if (ret) {
-			fprintf(stderr, "Failed marking CPU unavailable\n");
-			exit(EXIT_FAIL_BPF);
-		}
-	}
-}
-
-/* Stress cpumap management code by concurrently changing underlying cpumap */
-static void stress_cpumap(struct bpf_cpumap_val *value)
-{
-	/* Changing qsize will cause kernel to free and alloc a new
-	 * bpf_cpu_map_entry, with an associated/complicated tear-down
-	 * procedure.
-	 */
-	value->qsize = 1024;
-	create_cpu_entry(1, value, 0, false);
-	value->qsize = 8;
-	create_cpu_entry(1, value, 0, false);
-	value->qsize = 16000;
-	create_cpu_entry(1, value, 0, false);
-}
-
-static void stats_poll(int interval, bool use_separators, char *prog_name,
-		       char *mprog_name, struct bpf_cpumap_val *value,
-		       bool stress_mode)
-{
-	struct stats_record *record, *prev;
-	int mprog_fd;
-
-	record = alloc_stats_record();
-	prev   = alloc_stats_record();
-	stats_collect(record);
-
-	/* Trick to pretty printf with thousands separators use %' */
-	if (use_separators)
-		setlocale(LC_NUMERIC, "en_US");
-
-	while (1) {
-		swap(&prev, &record);
-		mprog_fd = value->bpf_prog.fd;
-		stats_collect(record);
-		stats_print(record, prev, prog_name, mprog_name, mprog_fd);
-		sleep(interval);
-		if (stress_mode)
-			stress_cpumap(value);
-	}
-
-	free_stats_record(record);
-	free_stats_record(prev);
-}
-
-static struct bpf_link * attach_tp(struct bpf_object *obj,
-				   const char *tp_category,
-				   const char* tp_name)
-{
-	struct bpf_program *prog;
-	struct bpf_link *link;
-	char sec_name[PATH_MAX];
-	int len;
-
-	len = snprintf(sec_name, PATH_MAX, "tracepoint/%s/%s",
-		       tp_category, tp_name);
-	if (len < 0)
-		exit(EXIT_FAIL);
-
-	prog = bpf_object__find_program_by_title(obj, sec_name);
-	if (!prog) {
-		fprintf(stderr, "ERR: finding progsec: %s\n", sec_name);
-		exit(EXIT_FAIL_BPF);
-	}
-
-	link = bpf_program__attach_tracepoint(prog, tp_category, tp_name);
-	if (libbpf_get_error(link))
-		exit(EXIT_FAIL_BPF);
-
-	return link;
-}
-
-static void init_tracepoints(struct bpf_object *obj) {
-	tp_links[tp_cnt++] = attach_tp(obj, "xdp", "xdp_redirect_err");
-	tp_links[tp_cnt++] = attach_tp(obj, "xdp", "xdp_redirect_map_err");
-	tp_links[tp_cnt++] = attach_tp(obj, "xdp", "xdp_exception");
-	tp_links[tp_cnt++] = attach_tp(obj, "xdp", "xdp_cpumap_enqueue");
-	tp_links[tp_cnt++] = attach_tp(obj, "xdp", "xdp_cpumap_kthread");
-}
-
-static int init_map_fds(struct bpf_object *obj)
-{
-	/* Maps updated by tracepoints */
-	redirect_err_cnt_map_fd =
-		bpf_object__find_map_fd_by_name(obj, "redirect_err_cnt");
-	exception_cnt_map_fd =
-		bpf_object__find_map_fd_by_name(obj, "exception_cnt");
-	cpumap_enqueue_cnt_map_fd =
-		bpf_object__find_map_fd_by_name(obj, "cpumap_enqueue_cnt");
-	cpumap_kthread_cnt_map_fd =
-		bpf_object__find_map_fd_by_name(obj, "cpumap_kthread_cnt");
-
-	/* Maps used by XDP */
-	rx_cnt_map_fd = bpf_object__find_map_fd_by_name(obj, "rx_cnt");
-	cpu_map_fd = bpf_object__find_map_fd_by_name(obj, "cpu_map");
-	cpus_available_map_fd =
-		bpf_object__find_map_fd_by_name(obj, "cpus_available");
-	cpus_count_map_fd = bpf_object__find_map_fd_by_name(obj, "cpus_count");
-	cpus_iterator_map_fd =
-		bpf_object__find_map_fd_by_name(obj, "cpus_iterator");
-
-	if (cpu_map_fd < 0 || rx_cnt_map_fd < 0 ||
-	    redirect_err_cnt_map_fd < 0 || cpumap_enqueue_cnt_map_fd < 0 ||
-	    cpumap_kthread_cnt_map_fd < 0 || cpus_available_map_fd < 0 ||
-	    cpus_count_map_fd < 0 || cpus_iterator_map_fd < 0 ||
-	    exception_cnt_map_fd < 0)
-		return -ENOENT;
-
-	return 0;
-}
-
-static int load_cpumap_prog(char *file_name, char *prog_name,
-			    char *redir_interface, char *redir_map)
-{
-	struct bpf_prog_load_attr prog_load_attr = {
-		.prog_type		= BPF_PROG_TYPE_XDP,
-		.expected_attach_type	= BPF_XDP_CPUMAP,
-		.file = file_name,
-	};
-	struct bpf_program *prog;
-	struct bpf_object *obj;
-	int fd;
-
-	if (bpf_prog_load_xattr(&prog_load_attr, &obj, &fd))
-		return -1;
-
-	if (fd < 0) {
-		fprintf(stderr, "ERR: bpf_prog_load_xattr: %s\n",
-			strerror(errno));
-		return fd;
-	}
-
-	if (redir_interface && redir_map) {
-		int err, map_fd, ifindex_out, key = 0;
-
-		map_fd = bpf_object__find_map_fd_by_name(obj, redir_map);
-		if (map_fd < 0)
-			return map_fd;
-
-		ifindex_out = if_nametoindex(redir_interface);
-		if (!ifindex_out)
-			return -1;
-
-		err = bpf_map_update_elem(map_fd, &key, &ifindex_out, 0);
-		if (err < 0)
-			return err;
-	}
-
-	prog = bpf_object__find_program_by_title(obj, prog_name);
-	if (!prog) {
-		fprintf(stderr, "bpf_object__find_program_by_title failed\n");
-		return EXIT_FAIL;
-	}
-
-	return bpf_program__fd(prog);
-}
-
-int main(int argc, char **argv)
-{
-	struct rlimit r = {10 * 1024 * 1024, RLIM_INFINITY};
-	char *prog_name = "xdp_cpu_map5_lb_hash_ip_pairs";
-	char *mprog_filename = "xdp_redirect_kern.o";
-	char *redir_interface = NULL, *redir_map = NULL;
-	char *mprog_name = "xdp_redirect_dummy";
-	bool mprog_disable = false;
-	struct bpf_prog_load_attr prog_load_attr = {
-		.prog_type	= BPF_PROG_TYPE_UNSPEC,
-	};
-	struct bpf_prog_info info = {};
-	__u32 info_len = sizeof(info);
-	struct bpf_cpumap_val value;
-	bool use_separators = true;
-	bool stress_mode = false;
-	struct bpf_program *prog;
-	struct bpf_object *obj;
-	char filename[256];
-	int added_cpus = 0;
-	int longindex = 0;
-	int interval = 2;
-	int add_cpu = -1;
-	int opt, err;
-	int prog_fd;
-	int *cpu, i;
-	__u32 qsize;
-
-	n_cpus = get_nprocs_conf();
-
-	/* Notice: choosing he queue size is very important with the
-	 * ixgbe driver, because it's driver page recycling trick is
-	 * dependend on pages being returned quickly.  The number of
-	 * out-standing packets in the system must be less-than 2x
-	 * RX-ring size.
-	 */
-	qsize = 128+64;
-
-	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
-	prog_load_attr.file = filename;
-
-	if (setrlimit(RLIMIT_MEMLOCK, &r)) {
-		perror("setrlimit(RLIMIT_MEMLOCK)");
-		return 1;
-	}
-
-	if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
-		return EXIT_FAIL;
-
-	if (prog_fd < 0) {
-		fprintf(stderr, "ERR: bpf_prog_load_xattr: %s\n",
-			strerror(errno));
-		return EXIT_FAIL;
-	}
-	init_tracepoints(obj);
-	if (init_map_fds(obj) < 0) {
-		fprintf(stderr, "bpf_object__find_map_fd_by_name failed\n");
-		return EXIT_FAIL;
-	}
-	mark_cpus_unavailable();
-
-	cpu = malloc(n_cpus * sizeof(int));
-	if (!cpu) {
-		fprintf(stderr, "failed to allocate cpu array\n");
-		return EXIT_FAIL;
-	}
-	memset(cpu, 0, n_cpus * sizeof(int));
-
-	/* Parse commands line args */
-	while ((opt = getopt_long(argc, argv, "hSd:s:p:q:c:xzFf:e:r:m:",
-				  long_options, &longindex)) != -1) {
-		switch (opt) {
-		case 'd':
-			if (strlen(optarg) >= IF_NAMESIZE) {
-				fprintf(stderr, "ERR: --dev name too long\n");
-				goto error;
-			}
-			ifname = (char *)&ifname_buf;
-			strncpy(ifname, optarg, IF_NAMESIZE);
-			ifindex = if_nametoindex(ifname);
-			if (ifindex == 0) {
-				fprintf(stderr,
-					"ERR: --dev name unknown err(%d):%s\n",
-					errno, strerror(errno));
-				goto error;
-			}
-			break;
-		case 's':
-			interval = atoi(optarg);
-			break;
-		case 'S':
-			xdp_flags |= XDP_FLAGS_SKB_MODE;
-			break;
-		case 'x':
-			stress_mode = true;
-			break;
-		case 'z':
-			use_separators = false;
-			break;
-		case 'p':
-			/* Selecting eBPF prog to load */
-			prog_name = optarg;
-			break;
-		case 'n':
-			mprog_disable = true;
-			break;
-		case 'f':
-			mprog_filename = optarg;
-			break;
-		case 'e':
-			mprog_name = optarg;
-			break;
-		case 'r':
-			redir_interface = optarg;
-			break;
-		case 'm':
-			redir_map = optarg;
-			break;
-		case 'c':
-			/* Add multiple CPUs */
-			add_cpu = strtoul(optarg, NULL, 0);
-			if (add_cpu >= n_cpus) {
-				fprintf(stderr,
-				"--cpu nr too large for cpumap err(%d):%s\n",
-					errno, strerror(errno));
-				goto error;
-			}
-			cpu[added_cpus++] = add_cpu;
-			break;
-		case 'q':
-			qsize = atoi(optarg);
-			break;
-		case 'F':
-			xdp_flags &= ~XDP_FLAGS_UPDATE_IF_NOEXIST;
-			break;
-		case 'h':
-		error:
-		default:
-			free(cpu);
-			usage(argv, obj);
-			return EXIT_FAIL_OPTION;
-		}
-	}
-
-	if (!(xdp_flags & XDP_FLAGS_SKB_MODE))
-		xdp_flags |= XDP_FLAGS_DRV_MODE;
-
-	/* Required option */
-	if (ifindex == -1) {
-		fprintf(stderr, "ERR: required option --dev missing\n");
-		usage(argv, obj);
-		err = EXIT_FAIL_OPTION;
-		goto out;
-	}
-	/* Required option */
-	if (add_cpu == -1) {
-		fprintf(stderr, "ERR: required option --cpu missing\n");
-		fprintf(stderr, " Specify multiple --cpu option to add more\n");
-		usage(argv, obj);
-		err = EXIT_FAIL_OPTION;
-		goto out;
-	}
-
-	value.bpf_prog.fd = 0;
-	if (!mprog_disable)
-		value.bpf_prog.fd = load_cpumap_prog(mprog_filename, mprog_name,
-						     redir_interface, redir_map);
-	if (value.bpf_prog.fd < 0) {
-		err = value.bpf_prog.fd;
-		goto out;
-	}
-	value.qsize = qsize;
-
-	for (i = 0; i < added_cpus; i++)
-		create_cpu_entry(cpu[i], &value, i, true);
-
-	/* Remove XDP program when program is interrupted or killed */
-	signal(SIGINT, int_exit);
-	signal(SIGTERM, int_exit);
-
-	prog = bpf_object__find_program_by_title(obj, prog_name);
-	if (!prog) {
-		fprintf(stderr, "bpf_object__find_program_by_title failed\n");
-		err = EXIT_FAIL;
-		goto out;
-	}
-
-	prog_fd = bpf_program__fd(prog);
-	if (prog_fd < 0) {
-		fprintf(stderr, "bpf_program__fd failed\n");
-		err = EXIT_FAIL;
-		goto out;
-	}
-
-	if (bpf_set_link_xdp_fd(ifindex, prog_fd, xdp_flags) < 0) {
-		fprintf(stderr, "link set xdp fd failed\n");
-		err = EXIT_FAIL_XDP;
-		goto out;
-	}
-
-	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
-	if (err) {
-		printf("can't get prog info - %s\n", strerror(errno));
-		goto out;
-	}
-	prog_id = info.id;
-
-	stats_poll(interval, use_separators, prog_name, mprog_name,
-		   &value, stress_mode);
-out:
-	free(cpu);
-	return err;
-}