samples/bpf: Remove the xdp_monitor utility

This utility has been ported as-is to xdp-tools as 'xdp-monitor'. The only
difference in usage between the samples and xdp-tools versions is that the
'-v' command line parameter has been changed to '-e' in the xdp-tools
version for consistency with the other utilities.

Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20230824102255.1561885-2-toke@redhat.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index f90bcd3696bdffc751686540e900fe17b2e1f159..29b07c4ec066ad6267489ca062c1ed0819c9423c 100644 (file)
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -55,7 +55,6 @@ tprogs-y += xdp_redirect_cpu
 tprogs-y += xdp_redirect_map_multi
 tprogs-y += xdp_redirect_map
 tprogs-y += xdp_redirect
-tprogs-y += xdp_monitor
 
 # Libbpf dependencies
 LIBBPF_SRC = $(TOOLS_PATH)/lib/bpf
@@ -116,7 +115,6 @@ xdp_redirect_map_multi-objs := xdp_redirect_map_multi_user.o $(XDP_SAMPLE)
 xdp_redirect_cpu-objs := xdp_redirect_cpu_user.o $(XDP_SAMPLE)
 xdp_redirect_map-objs := xdp_redirect_map_user.o $(XDP_SAMPLE)
 xdp_redirect-objs := xdp_redirect_user.o $(XDP_SAMPLE)
-xdp_monitor-objs := xdp_monitor_user.o $(XDP_SAMPLE)
 xdp_router_ipv4-objs := xdp_router_ipv4_user.o $(XDP_SAMPLE)
 
 # Tell kbuild to always build the programs
@@ -207,7 +205,6 @@ TPROGS_LDFLAGS := -L$(SYSROOT)/usr/lib
 endif
 
 TPROGS_LDLIBS                  += $(LIBBPF) -lelf -lz
-TPROGLDLIBS_xdp_monitor                += -lm
 TPROGLDLIBS_xdp_redirect       += -lm
 TPROGLDLIBS_xdp_redirect_cpu   += -lm
 TPROGLDLIBS_xdp_redirect_map   += -lm
@@ -330,7 +327,6 @@ $(obj)/xdp_redirect_cpu_user.o: $(obj)/xdp_redirect_cpu.skel.h
 $(obj)/xdp_redirect_map_multi_user.o: $(obj)/xdp_redirect_map_multi.skel.h
 $(obj)/xdp_redirect_map_user.o: $(obj)/xdp_redirect_map.skel.h
 $(obj)/xdp_redirect_user.o: $(obj)/xdp_redirect.skel.h
-$(obj)/xdp_monitor_user.o: $(obj)/xdp_monitor.skel.h
 $(obj)/xdp_router_ipv4_user.o: $(obj)/xdp_router_ipv4.skel.h
 
 $(obj)/tracex5.bpf.o: $(obj)/syscall_nrs.h
@@ -387,7 +383,6 @@ $(obj)/xdp_redirect_cpu.bpf.o: $(obj)/xdp_sample.bpf.o
 $(obj)/xdp_redirect_map_multi.bpf.o: $(obj)/xdp_sample.bpf.o
 $(obj)/xdp_redirect_map.bpf.o: $(obj)/xdp_sample.bpf.o
 $(obj)/xdp_redirect.bpf.o: $(obj)/xdp_sample.bpf.o
-$(obj)/xdp_monitor.bpf.o: $(obj)/xdp_sample.bpf.o
 $(obj)/xdp_router_ipv4.bpf.o: $(obj)/xdp_sample.bpf.o
 
 $(obj)/%.bpf.o: $(src)/%.bpf.c $(obj)/vmlinux.h $(src)/xdp_sample.bpf.h $(src)/xdp_sample_shared.h
@@ -399,7 +394,7 @@ $(obj)/%.bpf.o: $(src)/%.bpf.c $(obj)/vmlinux.h $(src)/xdp_sample.bpf.h $(src)/x
                -c $(filter %.bpf.c,$^) -o $@
 
 LINKED_SKELS := xdp_redirect_cpu.skel.h xdp_redirect_map_multi.skel.h \
-               xdp_redirect_map.skel.h xdp_redirect.skel.h xdp_monitor.skel.h \
+               xdp_redirect_map.skel.h xdp_redirect.skel.h \
                xdp_router_ipv4.skel.h
 clean-files += $(LINKED_SKELS)
 
@@ -407,7 +402,6 @@ xdp_redirect_cpu.skel.h-deps := xdp_redirect_cpu.bpf.o xdp_sample.bpf.o
 xdp_redirect_map_multi.skel.h-deps := xdp_redirect_map_multi.bpf.o xdp_sample.bpf.o
 xdp_redirect_map.skel.h-deps := xdp_redirect_map.bpf.o xdp_sample.bpf.o
 xdp_redirect.skel.h-deps := xdp_redirect.bpf.o xdp_sample.bpf.o
-xdp_monitor.skel.h-deps := xdp_monitor.bpf.o xdp_sample.bpf.o
 xdp_router_ipv4.skel.h-deps := xdp_router_ipv4.bpf.o xdp_sample.bpf.o
 
 LINKED_BPF_SRCS := $(patsubst %.bpf.o,%.bpf.c,$(foreach skel,$(LINKED_SKELS),$($(skel)-deps)))

diff --git a/samples/bpf/xdp_monitor.bpf.c b/samples/bpf/xdp_monitor.bpf.c
deleted file mode 100644 (file)
index cfb41e2..0000000
--- a/samples/bpf/xdp_monitor.bpf.c
+++ /dev/null
@@ -1,8 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*  Copyright(c) 2017-2018 Jesper Dangaard Brouer, Red Hat Inc.
- *
- * XDP monitor tool, based on tracepoints
- */
-#include "xdp_sample.bpf.h"
-
-char _license[] SEC("license") = "GPL";

diff --git a/samples/bpf/xdp_monitor_user.c b/samples/bpf/xdp_monitor_user.c
deleted file mode 100644 (file)
index 58015eb..0000000
--- a/samples/bpf/xdp_monitor_user.c
+++ /dev/null
@@ -1,118 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 2017 Jesper Dangaard Brouer, Red Hat, Inc. */
-static const char *__doc__=
-"XDP monitor tool, based on tracepoints\n";
-
-static const char *__doc_err_only__=
-" NOTICE: Only tracking XDP redirect errors\n"
-"         Enable redirect success stats via '-s/--stats'\n"
-"         (which comes with a per packet processing overhead)\n";
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <stdint.h>
-#include <string.h>
-#include <ctype.h>
-#include <unistd.h>
-#include <locale.h>
-#include <getopt.h>
-#include <net/if.h>
-#include <time.h>
-#include <signal.h>
-#include <bpf/bpf.h>
-#include <bpf/libbpf.h>
-#include "bpf_util.h"
-#include "xdp_sample_user.h"
-#include "xdp_monitor.skel.h"
-
-static int mask = SAMPLE_REDIRECT_ERR_CNT | SAMPLE_CPUMAP_ENQUEUE_CNT |
-                 SAMPLE_CPUMAP_KTHREAD_CNT | SAMPLE_EXCEPTION_CNT |
-                 SAMPLE_DEVMAP_XMIT_CNT | SAMPLE_DEVMAP_XMIT_CNT_MULTI;
-
-DEFINE_SAMPLE_INIT(xdp_monitor);
-
-static const struct option long_options[] = {
-       { "help", no_argument, NULL, 'h' },
-       { "stats", no_argument, NULL, 's' },
-       { "interval", required_argument, NULL, 'i' },
-       { "verbose", no_argument, NULL, 'v' },
-       {}
-};
-
-int main(int argc, char **argv)
-{
-       unsigned long interval = 2;
-       int ret = EXIT_FAIL_OPTION;
-       struct xdp_monitor *skel;
-       bool errors_only = true;
-       int longindex = 0, opt;
-       bool error = true;
-
-       /* Parse commands line args */
-       while ((opt = getopt_long(argc, argv, "si:vh",
-                                 long_options, &longindex)) != -1) {
-               switch (opt) {
-               case 's':
-                       errors_only = false;
-                       mask |= SAMPLE_REDIRECT_CNT;
-                       break;
-               case 'i':
-                       interval = strtoul(optarg, NULL, 0);
-                       break;
-               case 'v':
-                       sample_switch_mode();
-                       break;
-               case 'h':
-                       error = false;
-               default:
-                       sample_usage(argv, long_options, __doc__, mask, error);
-                       return ret;
-               }
-       }
-
-       skel = xdp_monitor__open();
-       if (!skel) {
-               fprintf(stderr, "Failed to xdp_monitor__open: %s\n",
-                       strerror(errno));
-               ret = EXIT_FAIL_BPF;
-               goto end;
-       }
-
-       ret = sample_init_pre_load(skel);
-       if (ret < 0) {
-               fprintf(stderr, "Failed to sample_init_pre_load: %s\n", strerror(-ret));
-               ret = EXIT_FAIL_BPF;
-               goto end_destroy;
-       }
-
-       ret = xdp_monitor__load(skel);
-       if (ret < 0) {
-               fprintf(stderr, "Failed to xdp_monitor__load: %s\n", strerror(errno));
-               ret = EXIT_FAIL_BPF;
-               goto end_destroy;
-       }
-
-       ret = sample_init(skel, mask);
-       if (ret < 0) {
-               fprintf(stderr, "Failed to initialize sample: %s\n", strerror(-ret));
-               ret = EXIT_FAIL_BPF;
-               goto end_destroy;
-       }
-
-       if (errors_only)
-               printf("%s", __doc_err_only__);
-
-       ret = sample_run(interval, NULL, NULL);
-       if (ret < 0) {
-               fprintf(stderr, "Failed during sample run: %s\n", strerror(-ret));
-               ret = EXIT_FAIL;
-               goto end_destroy;
-       }
-       ret = EXIT_OK;
-end_destroy:
-       xdp_monitor__destroy(skel);
-end:
-       sample_exit(ret);
-}