Merge tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking changes from Paolo Abeni: "Core: - Refactor the forward memory allocation to better cope with memory pressure with many open sockets, moving from a per socket cache to a per-CPU one - Replace rwlocks with RCU for better fairness in ping, raw sockets and IP multicast router. - Network-side support for IO uring zero-copy send. - A few skb drop reason improvements, including codegen the source file with string mapping instead of using macro magic. - Rename reference tracking helpers to a more consistent netdev_* schema. - Adapt u64_stats_t type to address load/store tearing issues. - Refine debug helper usage to reduce the log noise caused by bots. BPF: - Improve socket map performance, avoiding skb cloning on read operation. - Add support for 64 bits enum, to match types exposed by kernel. - Introduce support for sleepable uprobes program. - Introduce support for enum textual representation in libbpf. - New helpers to implement synproxy with eBPF/XDP. - Improve loop performances, inlining indirect calls when possible. - Removed all the deprecated libbpf APIs. - Implement new eBPF-based LSM flavor. - Add type match support, which allow accurate queries to the eBPF used types. - A few TCP congetsion control framework usability improvements. - Add new infrastructure to manipulate CT entries via eBPF programs. - Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function. Protocols: - Introduce per network namespace lookup tables for unix sockets, increasing scalability and reducing contention. - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support. - Add support to forciby close TIME_WAIT TCP sockets via user-space tools. - Significant performance improvement for the TLS 1.3 receive path, both for zero-copy and not-zero-copy. - Support for changing the initial MTPCP subflow priority/backup status - Introduce virtually contingus buffers for sockets over RDMA, to cope better with memory pressure. - Extend CAN ethtool support with timestamping capabilities - Refactor CAN build infrastructure to allow building only the needed features. Driver API: - Remove devlink mutex to allow parallel commands on multiple links. - Add support for pause stats in distributed switch. - Implement devlink helpers to query and flash line cards. - New helper for phy mode to register conversion. New hardware / drivers: - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro. - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch. - Ethernet DSA driver for the Microchip LAN937x switch. - Ethernet PHY driver for the Aquantia AQR113C EPHY. - CAN driver for the OBD-II ELM327 interface. - CAN driver for RZ/N1 SJA1000 CAN controller. - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device. Drivers: - Intel Ethernet NICs: - i40e: add support for vlan pruning - i40e: add support for XDP framented packets - ice: improved vlan offload support - ice: add support for PPPoE offload - Mellanox Ethernet (mlx5) - refactor packet steering offload for performance and scalability - extend support for TC offload - refactor devlink code to clean-up the locking schema - support stacked vlans for bridge offloads - use TLS objects pool to improve connection rate - Netronome Ethernet NICs (nfp): - extend support for IPv6 fields mangling offload - add support for vepa mode in HW bridge - better support for virtio data path acceleration (VDPA) - enable TSO by default - Microsoft vNIC driver (mana) - add support for XDP redirect - Others Ethernet drivers: - bonding: add per-port priority support - microchip lan743x: extend phy support - Fungible funeth: support UDP segmentation offload and XDP xmit - Solarflare EF100: add support for virtual function representors - MediaTek SoC: add XDP support - Mellanox Ethernet/IB switch (mlxsw): - dropped support for unreleased H/W (XM router). - improved stats accuracy - unified bridge model coversion improving scalability (parts 1-6) - support for PTP in Spectrum-2 asics - Broadcom PHYs - add PTP support for BCM54210E - add support for the BCM53128 internal PHY - Marvell Ethernet switches (prestera): - implement support for multicast forwarding offload - Embedded Ethernet switches: - refactor OcteonTx MAC filter for better scalability - improve TC H/W offload for the Felix driver - refactor the Microchip ksz8 and ksz9477 drivers to share the probe code (parts 1, 2), add support for phylink mac configuration - Other WiFi: - Microchip wilc1000: diable WEP support and enable WPA3 - Atheros ath10k: encapsulation offload support Old code removal: - Neterion vxge ethernet driver: this is untouched since more than 10 years" * tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits) doc: sfp-phylink: Fix a broken reference wireguard: selftests: support UML wireguard: allowedips: don't corrupt stack when detecting overflow wireguard: selftests: update config fragments wireguard: ratelimiter: use hrtimer in selftest net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ net: usb: ax88179_178a: Bind only to vendor-specific interface selftests: net: fix IOAM test skip return code net: usb: make USB_RTL8153_ECM non user configurable net: marvell: prestera: remove reduntant code octeontx2-pf: Reduce minimum mtu size to 60 net: devlink: Fix missing mutex_unlock() call net/tls: Remove redundant workqueue flush before destroy net: txgbe: Fix an error handling path in txgbe_probe() net: dsa: Fix spelling mistakes and cleanup code Documentation: devlink: add add devlink-selftests to the table of contents dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: ionic: fix error check for vlan flags in ionic_set_nic_features() net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr() nfp: flower: add support for tunnel offload without key ID ...
author: Linus Torvalds <torvalds@linux-foundation.org> 2022-08-03 16:29:08 -0700
committer: Linus Torvalds <torvalds@linux-foundation.org> 2022-08-03 16:29:08 -0700
commit: f86d1fbbe7858884d6754534a0afbb74fc30bc26 (patch)
tree: f61796870edefbe77d495e9d719c68af1d14275b /tools/testing
parent: Merge tag 'ata-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata (diff)
parent: Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff)
download: wireguard-linux-f86d1fbbe7858884d6754534a0afbb74fc30bc26.tar.xz
wireguard-linux-f86d1fbbe7858884d6754534a0afbb74fc30bc26.zip
131 files changed, 11061 insertions, 604 deletions
diff --git a/tools/testing/selftests/bpf/.gitignore b/tools/testing/selftests/bpf/.gitignore
index 595565eb68c0..3a8cb2404ea6 100644
--- a/tools/testing/selftests/bpf/.gitignore
+++ b/tools/testing/selftests/bpf/.gitignore
@@ -41,5 +41,6 @@ test_cpp
 /bench
 *.ko
 *.tmp
-xdpxceiver
+xskxceiver
 xdp_redirect_multi
+xdp_synproxy
diff --git a/tools/testing/selftests/bpf/DENYLIST b/tools/testing/selftests/bpf/DENYLIST
new file mode 100644
index 000000000000..939de574fc7f
--- /dev/null
+++ b/tools/testing/selftests/bpf/DENYLIST
@@ -0,0 +1,6 @@
+# TEMPORARY
+get_stack_raw_tp    # spams with kernel warnings until next bpf -> bpf-next merge
+stacktrace_build_id_nmi
+stacktrace_build_id
+task_fd_query_rawtp
+varlen
diff --git a/tools/testing/selftests/bpf/DENYLIST.s390x b/tools/testing/selftests/bpf/DENYLIST.s390x
new file mode 100644
index 000000000000..e33cab34d22f
--- /dev/null
+++ b/tools/testing/selftests/bpf/DENYLIST.s390x
@@ -0,0 +1,67 @@
+# TEMPORARY
+atomics                                  # attach(add): actual -524 <= expected 0                                      (trampoline)
+bpf_iter_setsockopt                      # JIT does not support calling kernel function                                (kfunc)
+bloom_filter_map                         # failed to find kernel BTF type ID of '__x64_sys_getpgid': -3                (?)
+bpf_tcp_ca                               # JIT does not support calling kernel function                                (kfunc)
+bpf_loop                                 # attaches to __x64_sys_nanosleep
+bpf_mod_race                             # BPF trampoline
+bpf_nf                                   # JIT does not support calling kernel function
+core_read_macros                         # unknown func bpf_probe_read#4                                               (overlapping)
+d_path                                   # failed to auto-attach program 'prog_stat': -524                             (trampoline)
+dummy_st_ops                             # test_run unexpected error: -524 (errno 524)                                 (trampoline)
+fentry_fexit                             # fentry attach failed: -524                                                  (trampoline)
+fentry_test                              # fentry_first_attach unexpected error: -524                                  (trampoline)
+fexit_bpf2bpf                            # freplace_attach_trace unexpected error: -524                                (trampoline)
+fexit_sleep                              # fexit_skel_load fexit skeleton failed                                       (trampoline)
+fexit_stress                             # fexit attach failed prog 0 failed: -524                                     (trampoline)
+fexit_test                               # fexit_first_attach unexpected error: -524                                   (trampoline)
+get_func_args_test	                 # trampoline
+get_func_ip_test                         # get_func_ip_test__attach unexpected error: -524                             (trampoline)
+get_stack_raw_tp                         # user_stack corrupted user stack                                             (no backchain userspace)
+kfree_skb                                # attach fentry unexpected error: -524                                        (trampoline)
+kfunc_call                               # 'bpf_prog_active': not found in kernel BTF                                  (?)
+ksyms_module                             # test_ksyms_module__open_and_load unexpected error: -9                       (?)
+ksyms_module_libbpf                      # JIT does not support calling kernel function                                (kfunc)
+ksyms_module_lskel                       # test_ksyms_module_lskel__open_and_load unexpected error: -9                 (?)
+modify_return                            # modify_return attach failed: -524                                           (trampoline)
+module_attach                            # skel_attach skeleton attach failed: -524                                    (trampoline)
+mptcp
+kprobe_multi_test                        # relies on fentry
+netcnt                                   # failed to load BPF skeleton 'netcnt_prog': -7                               (?)
+probe_user                               # check_kprobe_res wrong kprobe res from probe read                           (?)
+recursion                                # skel_attach unexpected error: -524                                          (trampoline)
+ringbuf                                  # skel_load skeleton load failed                                              (?)
+sk_assign                                # Can't read on server: Invalid argument                                      (?)
+sk_lookup                                # endianness problem
+sk_storage_tracing                       # test_sk_storage_tracing__attach unexpected error: -524                      (trampoline)
+skc_to_unix_sock                         # could not attach BPF object unexpected error: -524                          (trampoline)
+socket_cookie                            # prog_attach unexpected error: -524                                          (trampoline)
+stacktrace_build_id                      # compare_map_keys stackid_hmap vs. stackmap err -2 errno 2                   (?)
+tailcalls                                # tail_calls are not allowed in non-JITed programs with bpf-to-bpf calls      (?)
+task_local_storage                       # failed to auto-attach program 'trace_exit_creds': -524                      (trampoline)
+test_bpffs                               # bpffs test  failed 255                                                      (iterator)
+test_bprm_opts                           # failed to auto-attach program 'secure_exec': -524                           (trampoline)
+test_ima                                 # failed to auto-attach program 'ima': -524                                   (trampoline)
+test_local_storage                       # failed to auto-attach program 'unlink_hook': -524                           (trampoline)
+test_lsm                                 # failed to find kernel BTF type ID of '__x64_sys_setdomainname': -3          (?)
+test_overhead                            # attach_fentry unexpected error: -524                                        (trampoline)
+test_profiler                            # unknown func bpf_probe_read_str#45                                          (overlapping)
+timer                                    # failed to auto-attach program 'test1': -524                                 (trampoline)
+timer_crash                              # trampoline
+timer_mim                                # failed to auto-attach program 'test1': -524                                 (trampoline)
+trace_ext                                # failed to auto-attach program 'test_pkt_md_access_new': -524                (trampoline)
+trace_printk                             # trace_printk__load unexpected error: -2 (errno 2)                           (?)
+trace_vprintk                            # trace_vprintk__open_and_load unexpected error: -9                           (?)
+trampoline_count                         # prog 'prog1': failed to attach: ERROR: strerror_r(-524)=22                  (trampoline)
+verif_stats                              # trace_vprintk__open_and_load unexpected error: -9                           (?)
+vmlinux                                  # failed to auto-attach program 'handle__fentry': -524                        (trampoline)
+xdp_adjust_tail                          # case-128 err 0 errno 28 retval 1 size 128 expect-size 3520                  (?)
+xdp_bonding                              # failed to auto-attach program 'trace_on_entry': -524                        (trampoline)
+xdp_bpf2bpf                              # failed to auto-attach program 'trace_on_entry': -524                        (trampoline)
+map_kptr                                 # failed to open_and_load program: -524 (trampoline)
+bpf_cookie                               # failed to open_and_load program: -524 (trampoline)
+xdp_do_redirect                          # prog_run_max_size unexpected error: -22 (errno 22)
+send_signal                              # intermittently fails to receive signal
+select_reuseport                         # intermittently fails on new s390x setup
+xdp_synproxy                             # JIT does not support calling kernel function                                (kfunc)
+unpriv_bpf_disabled                      # fentry
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index 2d3c8c8f558a..8d59ec7f4c2d 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -82,7 +82,7 @@ TEST_PROGS_EXTENDED := with_addr.sh \
 TEST_GEN_PROGS_EXTENDED = test_sock_addr test_skb_cgroup_id_user \
 	flow_dissector_load test_flow_dissector test_tcp_check_syncookie_user \
 	test_lirc_mode2_user xdping test_cpp runqslower bench bpf_testmod.ko \
-	xdpxceiver xdp_redirect_multi
+	xskxceiver xdp_redirect_multi xdp_synproxy
 
 TEST_CUSTOM_PROGS = $(OUTPUT)/urandom_read
 
@@ -168,17 +168,26 @@ $(OUTPUT)/%:%.c
 	$(call msg,BINARY,,$@)
 	$(Q)$(LINK.c) $^ $(LDLIBS) -o $@
 
+# LLVM's ld.lld doesn't support all the architectures, so use it only on x86
+ifeq ($(SRCARCH),x86)
+LLD := lld
+else
+LLD := ld
+endif
+
 # Filter out -static for liburandom_read.so and its dependent targets so that static builds
 # do not fail. Static builds leave urandom_read relying on system-wide shared libraries.
 $(OUTPUT)/liburandom_read.so: urandom_read_lib1.c urandom_read_lib2.c
 	$(call msg,LIB,,$@)
-	$(Q)$(CC) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $^ $(LDLIBS) -fPIC -shared -o $@
+	$(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $^ $(LDLIBS)   \
+		     -fuse-ld=$(LLD) -Wl,-znoseparate-code -fPIC -shared -o $@
 
 $(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_read.so
 	$(call msg,BINARY,,$@)
-	$(Q)$(CC) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^)  \
-		  liburandom_read.so $(LDLIBS)	       			       \
-		  -Wl,-rpath=. -Wl,--build-id=sha1 -o $@
+	$(Q)$(CLANG) $(filter-out -static,$(CFLAGS) $(LDFLAGS)) $(filter %.c,$^) \
+		     liburandom_read.so $(LDLIBS)			       \
+		     -fuse-ld=$(LLD) -Wl,-znoseparate-code		       \
+		     -Wl,-rpath=. -Wl,--build-id=sha1 -o $@
 
 $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch])
 	$(call msg,MOD,,$@)
@@ -221,6 +230,8 @@ $(OUTPUT)/xdping: $(TESTING_HELPERS)
 $(OUTPUT)/flow_dissector_load: $(TESTING_HELPERS)
 $(OUTPUT)/test_maps: $(TESTING_HELPERS)
 $(OUTPUT)/test_verifier: $(TESTING_HELPERS) $(CAP_HELPERS)
+$(OUTPUT)/xsk.o: $(BPFOBJ)
+$(OUTPUT)/xskxceiver: $(OUTPUT)/xsk.o
 
 BPFTOOL ?= $(DEFAULT_BPFTOOL)
 $(DEFAULT_BPFTOOL): $(wildcard $(BPFTOOLDIR)/*.[ch] $(BPFTOOLDIR)/Makefile)    \
@@ -502,6 +513,7 @@ TRUNNER_EXTRA_SOURCES := test_progs.c cgroup_helpers.c trace_helpers.c	\
 			 cap_helpers.c
 TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read $(OUTPUT)/bpf_testmod.ko	\
 		       $(OUTPUT)/liburandom_read.so			\
+		       $(OUTPUT)/xdp_synproxy				\
 		       ima_setup.sh					\
 		       $(wildcard progs/btf_dump_test_case_*.c)
 TRUNNER_BPF_BUILD_RULE := CLANG_BPF_BUILD_RULE
@@ -560,6 +572,9 @@ $(OUTPUT)/bench_ringbufs.o: $(OUTPUT)/ringbuf_bench.skel.h \
 $(OUTPUT)/bench_bloom_filter_map.o: $(OUTPUT)/bloom_filter_bench.skel.h
 $(OUTPUT)/bench_bpf_loop.o: $(OUTPUT)/bpf_loop_bench.skel.h
 $(OUTPUT)/bench_strncmp.o: $(OUTPUT)/strncmp_bench.skel.h
+$(OUTPUT)/bench_bpf_hashmap_full_update.o: $(OUTPUT)/bpf_hashmap_full_update_bench.skel.h
+$(OUTPUT)/bench_local_storage.o: $(OUTPUT)/local_storage_bench.skel.h
+$(OUTPUT)/bench_local_storage_rcu_tasks_trace.o: $(OUTPUT)/local_storage_rcu_tasks_trace_bench.skel.h
 $(OUTPUT)/bench.o: bench.h testing_helpers.h $(BPFOBJ)
 $(OUTPUT)/bench: LDLIBS += -lm
 $(OUTPUT)/bench: $(OUTPUT)/bench.o \
@@ -571,13 +586,18 @@ $(OUTPUT)/bench: $(OUTPUT)/bench.o \
 		 $(OUTPUT)/bench_ringbufs.o \
 		 $(OUTPUT)/bench_bloom_filter_map.o \
 		 $(OUTPUT)/bench_bpf_loop.o \
-		 $(OUTPUT)/bench_strncmp.o
+		 $(OUTPUT)/bench_strncmp.o \
+		 $(OUTPUT)/bench_bpf_hashmap_full_update.o \
+		 $(OUTPUT)/bench_local_storage.o \
+		 $(OUTPUT)/bench_local_storage_rcu_tasks_trace.o
 	$(call msg,BINARY,,$@)
 	$(Q)$(CC) $(CFLAGS) $(LDFLAGS) $(filter %.a %.o,$^) $(LDLIBS) -o $@
 
 EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(SCRATCH_DIR) $(HOST_SCRATCH_DIR)	\
 	prog_tests/tests.h map_tests/tests.h verifier/tests.h		\
 	feature bpftool							\
-	$(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h *.subskel.h no_alu32 bpf_gcc bpf_testmod.ko)
+	$(addprefix $(OUTPUT)/,*.o *.skel.h *.lskel.h *.subskel.h	\
+			       no_alu32 bpf_gcc bpf_testmod.ko		\
+			       liburandom_read.so)
 
 .PHONY: docs docs-clean
diff --git a/tools/testing/selftests/bpf/bench.c b/tools/testing/selftests/bpf/bench.c
index f061cc20e776..c1f20a147462 100644
--- a/tools/testing/selftests/bpf/bench.c
+++ b/tools/testing/selftests/bpf/bench.c
@@ -79,6 +79,43 @@ void hits_drops_report_progress(int iter, struct bench_res *res, long delta_ns)
 	       hits_per_sec, hits_per_prod, drops_per_sec, hits_per_sec + drops_per_sec);
 }
 
+void
+grace_period_latency_basic_stats(struct bench_res res[], int res_cnt, struct basic_stats *gp_stat)
+{
+	int i;
+
+	memset(gp_stat, 0, sizeof(struct basic_stats));
+
+	for (i = 0; i < res_cnt; i++)
+		gp_stat->mean += res[i].gp_ns / 1000.0 / (double)res[i].gp_ct / (0.0 + res_cnt);
+
+#define IT_MEAN_DIFF (res[i].gp_ns / 1000.0 / (double)res[i].gp_ct - gp_stat->mean)
+	if (res_cnt > 1) {
+		for (i = 0; i < res_cnt; i++)
+			gp_stat->stddev += (IT_MEAN_DIFF * IT_MEAN_DIFF) / (res_cnt - 1.0);
+	}
+	gp_stat->stddev = sqrt(gp_stat->stddev);
+#undef IT_MEAN_DIFF
+}
+
+void
+grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt, struct basic_stats *gp_stat)
+{
+	int i;
+
+	memset(gp_stat, 0, sizeof(struct basic_stats));
+	for (i = 0; i < res_cnt; i++)
+		gp_stat->mean += res[i].stime / (double)res[i].gp_ct / (0.0 + res_cnt);
+
+#define IT_MEAN_DIFF (res[i].stime / (double)res[i].gp_ct - gp_stat->mean)
+	if (res_cnt > 1) {
+		for (i = 0; i < res_cnt; i++)
+			gp_stat->stddev += (IT_MEAN_DIFF * IT_MEAN_DIFF) / (res_cnt - 1.0);
+	}
+	gp_stat->stddev = sqrt(gp_stat->stddev);
+#undef IT_MEAN_DIFF
+}
+
 void hits_drops_report_final(struct bench_res res[], int res_cnt)
 {
 	int i;
@@ -150,6 +187,53 @@ void ops_report_final(struct bench_res res[], int res_cnt)
 	printf("latency %8.3lf ns/op\n", 1000.0 / hits_mean * env.producer_cnt);
 }
 
+void local_storage_report_progress(int iter, struct bench_res *res,
+				   long delta_ns)
+{
+	double important_hits_per_sec, hits_per_sec;
+	double delta_sec = delta_ns / 1000000000.0;
+
+	hits_per_sec = res->hits / 1000000.0 / delta_sec;
+	important_hits_per_sec = res->important_hits / 1000000.0 / delta_sec;
+
+	printf("Iter %3d (%7.3lfus): ", iter, (delta_ns - 1000000000) / 1000.0);
+
+	printf("hits %8.3lfM/s ", hits_per_sec);
+	printf("important_hits %8.3lfM/s\n", important_hits_per_sec);
+}
+
+void local_storage_report_final(struct bench_res res[], int res_cnt)
+{
+	double important_hits_mean = 0.0, important_hits_stddev = 0.0;
+	double hits_mean = 0.0, hits_stddev = 0.0;
+	int i;
+
+	for (i = 0; i < res_cnt; i++) {
+		hits_mean += res[i].hits / 1000000.0 / (0.0 + res_cnt);
+		important_hits_mean += res[i].important_hits / 1000000.0 / (0.0 + res_cnt);
+	}
+
+	if (res_cnt > 1)  {
+		for (i = 0; i < res_cnt; i++) {
+			hits_stddev += (hits_mean - res[i].hits / 1000000.0) *
+				       (hits_mean - res[i].hits / 1000000.0) /
+				       (res_cnt - 1.0);
+			important_hits_stddev +=
+				       (important_hits_mean - res[i].important_hits / 1000000.0) *
+				       (important_hits_mean - res[i].important_hits / 1000000.0) /
+				       (res_cnt - 1.0);
+		}
+
+		hits_stddev = sqrt(hits_stddev);
+		important_hits_stddev = sqrt(important_hits_stddev);
+	}
+	printf("Summary: hits throughput %8.3lf \u00B1 %5.3lf M ops/s, ",
+	       hits_mean, hits_stddev);
+	printf("hits latency %8.3lf ns/op, ", 1000.0 / hits_mean);
+	printf("important_hits throughput %8.3lf \u00B1 %5.3lf M ops/s\n",
+	       important_hits_mean, important_hits_stddev);
+}
+
 const char *argp_program_version = "benchmark";
 const char *argp_program_bug_address = "<bpf@vger.kernel.org>";
 const char argp_program_doc[] =
@@ -188,13 +272,18 @@ static const struct argp_option opts[] = {
 extern struct argp bench_ringbufs_argp;
 extern struct argp bench_bloom_map_argp;
 extern struct argp bench_bpf_loop_argp;
+extern struct argp bench_local_storage_argp;
+extern struct argp bench_local_storage_rcu_tasks_trace_argp;
 extern struct argp bench_strncmp_argp;
 
 static const struct argp_child bench_parsers[] = {
 	{ &bench_ringbufs_argp, 0, "Ring buffers benchmark", 0 },
 	{ &bench_bloom_map_argp, 0, "Bloom filter map benchmark", 0 },
 	{ &bench_bpf_loop_argp, 0, "bpf_loop helper benchmark", 0 },
+	{ &bench_local_storage_argp, 0, "local_storage benchmark", 0 },
 	{ &bench_strncmp_argp, 0, "bpf_strncmp helper benchmark", 0 },
+	{ &bench_local_storage_rcu_tasks_trace_argp, 0,
+		"local_storage RCU Tasks Trace slowdown benchmark", 0 },
 	{},
 };
 
@@ -396,6 +485,11 @@ extern const struct bench bench_hashmap_with_bloom;
 extern const struct bench bench_bpf_loop;
 extern const struct bench bench_strncmp_no_helper;
 extern const struct bench bench_strncmp_helper;
+extern const struct bench bench_bpf_hashmap_full_update;
+extern const struct bench bench_local_storage_cache_seq_get;
+extern const struct bench bench_local_storage_cache_interleaved_get;
+extern const struct bench bench_local_storage_cache_hashmap_control;
+extern const struct bench bench_local_storage_tasks_trace;
 
 static const struct bench *benchs[] = {
 	&bench_count_global,
@@ -430,6 +524,11 @@ static const struct bench *benchs[] = {
 	&bench_bpf_loop,
 	&bench_strncmp_no_helper,
 	&bench_strncmp_helper,
+	&bench_bpf_hashmap_full_update,
+	&bench_local_storage_cache_seq_get,
+	&bench_local_storage_cache_interleaved_get,
+	&bench_local_storage_cache_hashmap_control,
+	&bench_local_storage_tasks_trace,
 };
 
 static void setup_benchmark()
diff --git a/tools/testing/selftests/bpf/bench.h b/tools/testing/selftests/bpf/bench.h
index fb3e213df3dc..d748255877e2 100644
--- a/tools/testing/selftests/bpf/bench.h
+++ b/tools/testing/selftests/bpf/bench.h
@@ -30,10 +30,19 @@ struct env {
 	struct cpu_set cons_cpus;
 };
 
+struct basic_stats {
+	double mean;
+	double stddev;
+};
+
 struct bench_res {
 	long hits;
 	long drops;
 	long false_hits;
+	long important_hits;
+	unsigned long gp_ns;
+	unsigned long gp_ct;
+	unsigned int stime;
 };
 
 struct bench {
@@ -61,6 +70,13 @@ void false_hits_report_progress(int iter, struct bench_res *res, long delta_ns);
 void false_hits_report_final(struct bench_res res[], int res_cnt);
 void ops_report_progress(int iter, struct bench_res *res, long delta_ns);
 void ops_report_final(struct bench_res res[], int res_cnt);
+void local_storage_report_progress(int iter, struct bench_res *res,
+				   long delta_ns);
+void local_storage_report_final(struct bench_res res[], int res_cnt);
+void grace_period_latency_basic_stats(struct bench_res res[], int res_cnt,
+				      struct basic_stats *gp_stat);
+void grace_period_ticks_basic_stats(struct bench_res res[], int res_cnt,
+				    struct basic_stats *gp_stat);
 
 static inline __u64 get_time_ns(void)
 {
diff --git a/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_full_update.c b/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_full_update.c
new file mode 100644
index 000000000000..cec51e0ff4b8
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_bpf_hashmap_full_update.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include <argp.h>
+#include "bench.h"
+#include "bpf_hashmap_full_update_bench.skel.h"
+#include "bpf_util.h"
+
+/* BPF triggering benchmarks */
+static struct ctx {
+	struct bpf_hashmap_full_update_bench *skel;
+} ctx;
+
+#define MAX_LOOP_NUM 10000
+
+static void validate(void)
+{
+	if (env.consumer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-consumer!\n");
+		exit(1);
+	}
+}
+
+static void *producer(void *input)
+{
+	while (true) {
+		/* trigger the bpf program */
+		syscall(__NR_getpgid);
+	}
+
+	return NULL;
+}
+
+static void *consumer(void *input)
+{
+	return NULL;
+}
+
+static void measure(struct bench_res *res)
+{
+}
+
+static void setup(void)
+{
+	struct bpf_link *link;
+	int map_fd, i, max_entries;
+
+	setup_libbpf();
+
+	ctx.skel = bpf_hashmap_full_update_bench__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "failed to open skeleton\n");
+		exit(1);
+	}
+
+	ctx.skel->bss->nr_loops = MAX_LOOP_NUM;
+
+	link = bpf_program__attach(ctx.skel->progs.benchmark);
+	if (!link) {
+		fprintf(stderr, "failed to attach program!\n");
+		exit(1);
+	}
+
+	/* fill hash_map */
+	map_fd = bpf_map__fd(ctx.skel->maps.hash_map_bench);
+	max_entries = bpf_map__max_entries(ctx.skel->maps.hash_map_bench);
+	for (i = 0; i < max_entries; i++)
+		bpf_map_update_elem(map_fd, &i, &i, BPF_ANY);
+}
+
+void hashmap_report_final(struct bench_res res[], int res_cnt)
+{
+	unsigned int nr_cpus = bpf_num_possible_cpus();
+	int i;
+
+	for (i = 0; i < nr_cpus; i++) {
+		u64 time = ctx.skel->bss->percpu_time[i];
+
+		if (!time)
+			continue;
+
+		printf("%d:hash_map_full_perf %lld events per sec\n",
+		       i, ctx.skel->bss->nr_loops * 1000000000ll / time);
+	}
+}
+
+const struct bench bench_bpf_hashmap_full_update = {
+	.name = "bpf-hashmap-ful-update",
+	.validate = validate,
+	.setup = setup,
+	.producer_thread = producer,
+	.consumer_thread = consumer,
+	.measure = measure,
+	.report_progress = NULL,
+	.report_final = hashmap_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage.c b/tools/testing/selftests/bpf/benchs/bench_local_storage.c
new file mode 100644
index 000000000000..5a378c84e81f
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_local_storage.c
@@ -0,0 +1,287 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <argp.h>
+#include <linux/btf.h>
+
+#include "local_storage_bench.skel.h"
+#include "bench.h"
+
+#include <test_btf.h>
+
+static struct {
+	__u32 nr_maps;
+	__u32 hashmap_nr_keys_used;
+} args = {
+	.nr_maps = 1000,
+	.hashmap_nr_keys_used = 1000,
+};
+
+enum {
+	ARG_NR_MAPS = 6000,
+	ARG_HASHMAP_NR_KEYS_USED = 6001,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_maps", ARG_NR_MAPS, "NR_MAPS", 0,
+		"Set number of local_storage maps"},
+	{ "hashmap_nr_keys_used", ARG_HASHMAP_NR_KEYS_USED, "NR_KEYS",
+		0, "When doing hashmap test, set number of hashmap keys test uses"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_NR_MAPS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid nr_maps");
+			argp_usage(state);
+		}
+		args.nr_maps = ret;
+		break;
+	case ARG_HASHMAP_NR_KEYS_USED:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid hashmap_nr_keys_used");
+			argp_usage(state);
+		}
+		args.hashmap_nr_keys_used = ret;
+		break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_local_storage_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+/* Keep in sync w/ array of maps in bpf */
+#define MAX_NR_MAPS 1000
+/* keep in sync w/ same define in bpf */
+#define HASHMAP_SZ 4194304
+
+static void validate(void)
+{
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-producer!\n");
+		exit(1);
+	}
+	if (env.consumer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-consumer!\n");
+		exit(1);
+	}
+
+	if (args.nr_maps > MAX_NR_MAPS) {
+		fprintf(stderr, "nr_maps must be <= 1000\n");
+		exit(1);
+	}
+
+	if (args.hashmap_nr_keys_used > HASHMAP_SZ) {
+		fprintf(stderr, "hashmap_nr_keys_used must be <= %u\n", HASHMAP_SZ);
+		exit(1);
+	}
+}
+
+static struct {
+	struct local_storage_bench *skel;
+	void *bpf_obj;
+	struct bpf_map *array_of_maps;
+} ctx;
+
+static void prepopulate_hashmap(int fd)
+{
+	int i, key, val;
+
+	/* local_storage gets will have BPF_LOCAL_STORAGE_GET_F_CREATE flag set, so
+	 * populate the hashmap for a similar comparison
+	 */
+	for (i = 0; i < HASHMAP_SZ; i++) {
+		key = val = i;
+		if (bpf_map_update_elem(fd, &key, &val, 0)) {
+			fprintf(stderr, "Error prepopulating hashmap (key %d)\n", key);
+			exit(1);
+		}
+	}
+}
+
+static void __setup(struct bpf_program *prog, bool hashmap)
+{
+	struct bpf_map *inner_map;
+	int i, fd, mim_fd, err;
+
+	LIBBPF_OPTS(bpf_map_create_opts, create_opts);
+
+	if (!hashmap)
+		create_opts.map_flags = BPF_F_NO_PREALLOC;
+
+	ctx.skel->rodata->num_maps = args.nr_maps;
+	ctx.skel->rodata->hashmap_num_keys = args.hashmap_nr_keys_used;
+	inner_map = bpf_map__inner_map(ctx.array_of_maps);
+	create_opts.btf_key_type_id = bpf_map__btf_key_type_id(inner_map);
+	create_opts.btf_value_type_id = bpf_map__btf_value_type_id(inner_map);
+
+	err = local_storage_bench__load(ctx.skel);
+	if (err) {
+		fprintf(stderr, "Error loading skeleton\n");
+		goto err_out;
+	}
+
+	create_opts.btf_fd = bpf_object__btf_fd(ctx.skel->obj);
+
+	mim_fd = bpf_map__fd(ctx.array_of_maps);
+	if (mim_fd < 0) {
+		fprintf(stderr, "Error getting map_in_map fd\n");
+		goto err_out;
+	}
+
+	for (i = 0; i < args.nr_maps; i++) {
+		if (hashmap)
+			fd = bpf_map_create(BPF_MAP_TYPE_HASH, NULL, sizeof(int),
+					    sizeof(int), HASHMAP_SZ, &create_opts);
+		else
+			fd = bpf_map_create(BPF_MAP_TYPE_TASK_STORAGE, NULL, sizeof(int),
+					    sizeof(int), 0, &create_opts);
+		if (fd < 0) {
+			fprintf(stderr, "Error creating map %d: %d\n", i, fd);
+			goto err_out;
+		}
+
+		if (hashmap)
+			prepopulate_hashmap(fd);
+
+		err = bpf_map_update_elem(mim_fd, &i, &fd, 0);
+		if (err) {
+			fprintf(stderr, "Error updating array-of-maps w/ map %d\n", i);
+			goto err_out;
+		}
+	}
+
+	if (!bpf_program__attach(prog)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	return;
+err_out:
+	exit(1);
+}
+
+static void hashmap_setup(void)
+{
+	struct local_storage_bench *skel;
+
+	setup_libbpf();
+
+	skel = local_storage_bench__open();
+	ctx.skel = skel;
+	ctx.array_of_maps = skel->maps.array_of_hash_maps;
+	skel->rodata->use_hashmap = 1;
+	skel->rodata->interleave = 0;
+
+	__setup(skel->progs.get_local, true);
+}
+
+static void local_storage_cache_get_setup(void)
+{
+	struct local_storage_bench *skel;
+
+	setup_libbpf();
+
+	skel = local_storage_bench__open();
+	ctx.skel = skel;
+	ctx.array_of_maps = skel->maps.array_of_local_storage_maps;
+	skel->rodata->use_hashmap = 0;
+	skel->rodata->interleave = 0;
+
+	__setup(skel->progs.get_local, false);
+}
+
+static void local_storage_cache_get_interleaved_setup(void)
+{
+	struct local_storage_bench *skel;
+
+	setup_libbpf();
+
+	skel = local_storage_bench__open();
+	ctx.skel = skel;
+	ctx.array_of_maps = skel->maps.array_of_local_storage_maps;
+	skel->rodata->use_hashmap = 0;
+	skel->rodata->interleave = 1;
+
+	__setup(skel->progs.get_local, false);
+}
+
+static void measure(struct bench_res *res)
+{
+	res->hits = atomic_swap(&ctx.skel->bss->hits, 0);
+	res->important_hits = atomic_swap(&ctx.skel->bss->important_hits, 0);
+}
+
+static inline void trigger_bpf_program(void)
+{
+	syscall(__NR_getpgid);
+}
+
+static void *consumer(void *input)
+{
+	return NULL;
+}
+
+static void *producer(void *input)
+{
+	while (true)
+		trigger_bpf_program();
+
+	return NULL;
+}
+
+/* cache sequential and interleaved get benchs test local_storage get
+ * performance, specifically they demonstrate performance cliff of
+ * current list-plus-cache local_storage model.
+ *
+ * cache sequential get: call bpf_task_storage_get on n maps in order
+ * cache interleaved get: like "sequential get", but interleave 4 calls to the
+ *	'important' map (idx 0 in array_of_maps) for every 10 calls. Goal
+ *	is to mimic environment where many progs are accessing their local_storage
+ *	maps, with 'our' prog needing to access its map more often than others
+ */
+const struct bench bench_local_storage_cache_seq_get = {
+	.name = "local-storage-cache-seq-get",
+	.validate = validate,
+	.setup = local_storage_cache_get_setup,
+	.producer_thread = producer,
+	.consumer_thread = consumer,
+	.measure = measure,
+	.report_progress = local_storage_report_progress,
+	.report_final = local_storage_report_final,
+};
+
+const struct bench bench_local_storage_cache_interleaved_get = {
+	.name = "local-storage-cache-int-get",
+	.validate = validate,
+	.setup = local_storage_cache_get_interleaved_setup,
+	.producer_thread = producer,
+	.consumer_thread = consumer,
+	.measure = measure,
+	.report_progress = local_storage_report_progress,
+	.report_final = local_storage_report_final,
+};
+
+const struct bench bench_local_storage_cache_hashmap_control = {
+	.name = "local-storage-cache-hashmap-control",
+	.validate = validate,
+	.setup = hashmap_setup,
+	.producer_thread = producer,
+	.consumer_thread = consumer,
+	.measure = measure,
+	.report_progress = local_storage_report_progress,
+	.report_final = local_storage_report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c b/tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c
new file mode 100644
index 000000000000..43f109d93130
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/bench_local_storage_rcu_tasks_trace.c
@@ -0,0 +1,281 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <argp.h>
+
+#include <sys/prctl.h>
+#include "local_storage_rcu_tasks_trace_bench.skel.h"
+#include "bench.h"
+
+#include <signal.h>
+
+static struct {
+	__u32 nr_procs;
+	__u32 kthread_pid;
+	bool quiet;
+} args = {
+	.nr_procs = 1000,
+	.kthread_pid = 0,
+	.quiet = false,
+};
+
+enum {
+	ARG_NR_PROCS = 7000,
+	ARG_KTHREAD_PID = 7001,
+	ARG_QUIET = 7002,
+};
+
+static const struct argp_option opts[] = {
+	{ "nr_procs", ARG_NR_PROCS, "NR_PROCS", 0,
+		"Set number of user processes to spin up"},
+	{ "kthread_pid", ARG_KTHREAD_PID, "PID", 0,
+		"Pid of rcu_tasks_trace kthread for ticks tracking"},
+	{ "quiet", ARG_QUIET, "{0,1}", 0,
+		"If true, don't report progress"},
+	{},
+};
+
+static error_t parse_arg(int key, char *arg, struct argp_state *state)
+{
+	long ret;
+
+	switch (key) {
+	case ARG_NR_PROCS:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1 || ret > UINT_MAX) {
+			fprintf(stderr, "invalid nr_procs\n");
+			argp_usage(state);
+		}
+		args.nr_procs = ret;
+		break;
+	case ARG_KTHREAD_PID:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 1) {
+			fprintf(stderr, "invalid kthread_pid\n");
+			argp_usage(state);
+		}
+		args.kthread_pid = ret;
+		break;
+	case ARG_QUIET:
+		ret = strtol(arg, NULL, 10);
+		if (ret < 0 || ret > 1) {
+			fprintf(stderr, "invalid quiet %ld\n", ret);
+			argp_usage(state);
+		}
+		args.quiet = ret;
+		break;
+break;
+	default:
+		return ARGP_ERR_UNKNOWN;
+	}
+
+	return 0;
+}
+
+const struct argp bench_local_storage_rcu_tasks_trace_argp = {
+	.options = opts,
+	.parser = parse_arg,
+};
+
+#define MAX_SLEEP_PROCS 150000
+
+static void validate(void)
+{
+	if (env.producer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-producer!\n");
+		exit(1);
+	}
+	if (env.consumer_cnt != 1) {
+		fprintf(stderr, "benchmark doesn't support multi-consumer!\n");
+		exit(1);
+	}
+
+	if (args.nr_procs > MAX_SLEEP_PROCS) {
+		fprintf(stderr, "benchmark supports up to %u sleeper procs!\n",
+			MAX_SLEEP_PROCS);
+		exit(1);
+	}
+}
+
+static long kthread_pid_ticks(void)
+{
+	char procfs_path[100];
+	long stime;
+	FILE *f;
+
+	if (!args.kthread_pid)
+		return -1;
+
+	sprintf(procfs_path, "/proc/%u/stat", args.kthread_pid);
+	f = fopen(procfs_path, "r");
+	if (!f) {
+		fprintf(stderr, "couldn't open %s, exiting\n", procfs_path);
+		goto err_out;
+	}
+	if (fscanf(f, "%*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %*s %ld", &stime) != 1) {
+		fprintf(stderr, "fscanf of %s failed, exiting\n", procfs_path);
+		goto err_out;
+	}
+	fclose(f);
+	return stime;
+
+err_out:
+	if (f)
+		fclose(f);
+	exit(1);
+	return 0;
+}
+
+static struct {
+	struct local_storage_rcu_tasks_trace_bench *skel;
+	long prev_kthread_stime;
+} ctx;
+
+static void sleep_and_loop(void)
+{
+	while (true) {
+		sleep(rand() % 4);
+		syscall(__NR_getpgid);
+	}
+}
+
+static void local_storage_tasks_trace_setup(void)
+{
+	int i, err, forkret, runner_pid;
+
+	runner_pid = getpid();
+
+	for (i = 0; i < args.nr_procs; i++) {
+		forkret = fork();
+		if (forkret < 0) {
+			fprintf(stderr, "Error forking sleeper proc %u of %u, exiting\n", i,
+				args.nr_procs);
+			goto err_out;
+		}
+
+		if (!forkret) {
+			err = prctl(PR_SET_PDEATHSIG, SIGKILL);
+			if (err < 0) {
+				fprintf(stderr, "prctl failed with err %d, exiting\n", errno);
+				goto err_out;
+			}
+
+			if (getppid() != runner_pid) {
+				fprintf(stderr, "Runner died while spinning up procs, exiting\n");
+				goto err_out;
+			}
+			sleep_and_loop();
+		}
+	}
+	printf("Spun up %u procs (our pid %d)\n", args.nr_procs, runner_pid);
+
+	setup_libbpf();
+
+	ctx.skel = local_storage_rcu_tasks_trace_bench__open_and_load();
+	if (!ctx.skel) {
+		fprintf(stderr, "Error doing open_and_load, exiting\n");
+		goto err_out;
+	}
+
+	ctx.prev_kthread_stime = kthread_pid_ticks();
+
+	if (!bpf_program__attach(ctx.skel->progs.get_local)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	if (!bpf_program__attach(ctx.skel->progs.pregp_step)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	if (!bpf_program__attach(ctx.skel->progs.postgp)) {
+		fprintf(stderr, "Error attaching bpf program\n");
+		goto err_out;
+	}
+
+	return;
+err_out:
+	exit(1);
+}
+
+static void measure(struct bench_res *res)
+{
+	long ticks;
+
+	res->gp_ct = atomic_swap(&ctx.skel->bss->gp_hits, 0);
+	res->gp_ns = atomic_swap(&ctx.skel->bss->gp_times, 0);
+	ticks = kthread_pid_ticks();
+	res->stime = ticks - ctx.prev_kthread_stime;
+	ctx.prev_kthread_stime = ticks;
+}
+
+static void *consumer(void *input)
+{
+	return NULL;
+}
+
+static void *producer(void *input)
+{
+	while (true)
+		syscall(__NR_getpgid);
+	return NULL;
+}
+
+static void report_progress(int iter, struct bench_res *res, long delta_ns)
+{
+	if (ctx.skel->bss->unexpected) {
+		fprintf(stderr, "Error: Unexpected order of bpf prog calls (postgp after pregp).");
+		fprintf(stderr, "Data can't be trusted, exiting\n");
+		exit(1);
+	}
+
+	if (args.quiet)
+		return;
+
+	printf("Iter %d\t avg tasks_trace grace period latency\t%lf ns\n",
+	       iter, res->gp_ns / (double)res->gp_ct);
+	printf("Iter %d\t avg ticks per tasks_trace grace period\t%lf\n",
+	       iter, res->stime / (double)res->gp_ct);
+}
+
+static void report_final(struct bench_res res[], int res_cnt)
+{
+	struct basic_stats gp_stat;
+
+	grace_period_latency_basic_stats(res, res_cnt, &gp_stat);
+	printf("SUMMARY tasks_trace grace period latency");
+	printf("\tavg %.3lf us\tstddev %.3lf us\n", gp_stat.mean, gp_stat.stddev);
+	grace_period_ticks_basic_stats(res, res_cnt, &gp_stat);
+	printf("SUMMARY ticks per tasks_trace grace period");
+	printf("\tavg %.3lf\tstddev %.3lf\n", gp_stat.mean, gp_stat.stddev);
+}
+
+/* local-storage-tasks-trace: Benchmark performance of BPF local_storage's use
+ * of RCU Tasks-Trace.
+ *
+ * Stress RCU Tasks Trace by forking many tasks, all of which do no work aside
+ * from sleep() loop, and creating/destroying BPF task-local storage on wakeup.
+ * The number of forked tasks is configurable.
+ *
+ * exercising code paths which call call_rcu_tasks_trace while there are many
+ * thousands of tasks on the system should result in RCU Tasks-Trace having to
+ * do a noticeable amount of work.
+ *
+ * This should be observable by measuring rcu_tasks_trace_kthread CPU usage
+ * after the grace period has ended, or by measuring grace period latency.
+ *
+ * This benchmark uses both approaches, attaching to rcu_tasks_trace_pregp_step
+ * and rcu_tasks_trace_postgp functions to measure grace period latency and
+ * using /proc/PID/stat to measure rcu_tasks_trace_kthread kernel ticks
+ */
+const struct bench bench_local_storage_tasks_trace = {
+	.name = "local-storage-tasks-trace",
+	.validate = validate,
+	.setup = local_storage_tasks_trace_setup,
+	.producer_thread = producer,
+	.consumer_thread = consumer,
+	.measure = measure,
+	.report_progress = report_progress,
+	.report_final = report_final,
+};
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_bpf_hashmap_full_update.sh b/tools/testing/selftests/bpf/benchs/run_bench_bpf_hashmap_full_update.sh
new file mode 100755
index 000000000000..1e2de838f9fa
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_bpf_hashmap_full_update.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+nr_threads=`expr $(cat /proc/cpuinfo | grep "processor"| wc -l) - 1`
+summary=$($RUN_BENCH -p $nr_threads bpf-hashmap-ful-update)
+printf "$summary"
+printf "\n"
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_local_storage.sh b/tools/testing/selftests/bpf/benchs/run_bench_local_storage.sh
new file mode 100755
index 000000000000..2eb2b513a173
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_local_storage.sh
@@ -0,0 +1,24 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+source ./benchs/run_common.sh
+
+set -eufo pipefail
+
+header "Hashmap Control"
+for i in 10 1000 10000 100000 4194304; do
+subtitle "num keys: $i"
+	summarize_local_storage "hashmap (control) sequential    get: "\
+		"$(./bench --nr_maps 1 --hashmap_nr_keys_used=$i local-storage-cache-hashmap-control)"
+	printf "\n"
+done
+
+header "Local Storage"
+for i in 1 10 16 17 24 32 100 1000; do
+subtitle "num_maps: $i"
+	summarize_local_storage "local_storage cache sequential  get: "\
+		"$(./bench --nr_maps $i local-storage-cache-seq-get)"
+	summarize_local_storage "local_storage cache interleaved get: "\
+		"$(./bench --nr_maps $i local-storage-cache-int-get)"
+	printf "\n"
+done
diff --git a/tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh b/tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh
new file mode 100755
index 000000000000..5dac1f02892c
--- /dev/null
+++ b/tools/testing/selftests/bpf/benchs/run_bench_local_storage_rcu_tasks_trace.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+kthread_pid=`pgrep rcu_tasks_trace_kthread`
+
+if [ -z $kthread_pid ]; then
+	echo "error: Couldn't find rcu_tasks_trace_kthread"
+	exit 1
+fi
+
+./bench --nr_procs 15000 --kthread_pid $kthread_pid -d 600 --quiet 1 local-storage-tasks-trace
diff --git a/tools/testing/selftests/bpf/benchs/run_common.sh b/tools/testing/selftests/bpf/benchs/run_common.sh
index 6c5e6023a69f..d9f40af82006 100644
--- a/tools/testing/selftests/bpf/benchs/run_common.sh
+++ b/tools/testing/selftests/bpf/benchs/run_common.sh
@@ -41,6 +41,16 @@ function ops()
 	echo "$*" | sed -E "s/.*latency\s+([0-9]+\.[0-9]+\sns\/op).*/\1/"
 }
 
+function local_storage()
+{
+	echo -n "hits throughput: "
+	echo -n "$*" | sed -E "s/.* hits throughput\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+\sM\sops\/s).*/\1/"
+	echo -n -e ", hits latency: "
+	echo -n "$*" | sed -E "s/.* hits latency\s+([0-9]+\.[0-9]+\sns\/op).*/\1/"
+	echo -n ", important_hits throughput: "
+	echo "$*" | sed -E "s/.*important_hits throughput\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+\sM\sops\/s).*/\1/"
+}
+
 function total()
 {
 	echo "$*" | sed -E "s/.*total operations\s+([0-9]+\.[0-9]+ ± [0-9]+\.[0-9]+M\/s).*/\1/"
@@ -67,6 +77,13 @@ function summarize_ops()
 	printf "%-20s %s\n" "$bench" "$(ops $summary)"
 }
 
+function summarize_local_storage()
+{
+	bench="$1"
+	summary=$(echo $2 | tail -n1)
+	printf "%-20s %s\n" "$bench" "$(local_storage $summary)"
+}
+
 function summarize_total()
 {
 	bench="$1"
diff --git a/tools/testing/selftests/bpf/bpf_legacy.h b/tools/testing/selftests/bpf/bpf_legacy.h
index 719ab56cdb5d..845209581440 100644
--- a/tools/testing/selftests/bpf/bpf_legacy.h
+++ b/tools/testing/selftests/bpf/bpf_legacy.h
@@ -2,15 +2,6 @@
 #ifndef __BPF_LEGACY__
 #define __BPF_LEGACY__
 
-#define BPF_ANNOTATE_KV_PAIR(name, type_key, type_val)		\
-	struct ____btf_map_##name {				\
-		type_key key;					\
-		type_val value;					\
-	};							\
-	struct ____btf_map_##name				\
-	__attribute__ ((section(".maps." #name), used))		\
-		____btf_map_##name = { }
-
 /* llvm builtin functions that eBPF C program may use to
  * emit BPF_LD_ABS and BPF_LD_IND instructions
  */
diff --git a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
index e585e1cefc77..792cb15bac40 100644
--- a/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
+++ b/tools/testing/selftests/bpf/bpf_testmod/bpf_testmod.c
@@ -148,13 +148,13 @@ static struct bin_attribute bin_attr_bpf_testmod_file __ro_after_init = {
 	.write = bpf_testmod_test_write,
 };
 
-BTF_SET_START(bpf_testmod_check_kfunc_ids)
-BTF_ID(func, bpf_testmod_test_mod_kfunc)
-BTF_SET_END(bpf_testmod_check_kfunc_ids)
+BTF_SET8_START(bpf_testmod_check_kfunc_ids)
+BTF_ID_FLAGS(func, bpf_testmod_test_mod_kfunc)
+BTF_SET8_END(bpf_testmod_check_kfunc_ids)
 
 static const struct btf_kfunc_id_set bpf_testmod_kfunc_set = {
-	.owner     = THIS_MODULE,
-	.check_set = &bpf_testmod_check_kfunc_ids,
+	.owner = THIS_MODULE,
+	.set   = &bpf_testmod_check_kfunc_ids,
 };
 
 extern int bpf_fentry_test1(int a);
diff --git a/tools/testing/selftests/bpf/btf_helpers.c b/tools/testing/selftests/bpf/btf_helpers.c
index b5941d514e17..1c1c2c26690a 100644
--- a/tools/testing/selftests/bpf/btf_helpers.c
+++ b/tools/testing/selftests/bpf/btf_helpers.c
@@ -26,11 +26,12 @@ static const char * const btf_kind_str_mapping[] = {
 	[BTF_KIND_FLOAT]	= "FLOAT",
 	[BTF_KIND_DECL_TAG]	= "DECL_TAG",
 	[BTF_KIND_TYPE_TAG]	= "TYPE_TAG",
+	[BTF_KIND_ENUM64]	= "ENUM64",
 };
 
 static const char *btf_kind_str(__u16 kind)
 {
-	if (kind > BTF_KIND_TYPE_TAG)
+	if (kind > BTF_KIND_ENUM64)
 		return "UNKNOWN";
 	return btf_kind_str_mapping[kind];
 }
@@ -139,14 +140,32 @@ int fprintf_btf_type_raw(FILE *out, const struct btf *btf, __u32 id)
 	}
 	case BTF_KIND_ENUM: {
 		const struct btf_enum *v = btf_enum(t);
+		const char *fmt_str;
 
-		fprintf(out, " size=%u vlen=%u", t->size, vlen);
+		fmt_str = btf_kflag(t) ? "\n\t'%s' val=%d" : "\n\t'%s' val=%u";
+		fprintf(out, " encoding=%s size=%u vlen=%u",
+			btf_kflag(t) ? "SIGNED" : "UNSIGNED", t->size, vlen);
 		for (i = 0; i < vlen; i++, v++) {
-			fprintf(out, "\n\t'%s' val=%u",
+			fprintf(out, fmt_str,
 				btf_str(btf, v->name_off), v->val);
 		}
 		break;
 	}
+	case BTF_KIND_ENUM64: {
+		const struct btf_enum64 *v = btf_enum64(t);
+		const char *fmt_str;
+
+		fmt_str = btf_kflag(t) ? "\n\t'%s' val=%lld" : "\n\t'%s' val=%llu";
+
+		fprintf(out, " encoding=%s size=%u vlen=%u",
+			btf_kflag(t) ? "SIGNED" : "UNSIGNED", t->size, vlen);
+		for (i = 0; i < vlen; i++, v++) {
+			fprintf(out, fmt_str,
+				btf_str(btf, v->name_off),
+				((__u64)v->val_hi32 << 32) | v->val_lo32);
+		}
+		break;
+	}
 	case BTF_KIND_FWD:
 		fprintf(out, " fwd_kind=%s", btf_kflag(t) ? "union" : "struct");
 		break;
diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config
index 3b3edc0fc8a6..fabf0c014349 100644
--- a/tools/testing/selftests/bpf/config
+++ b/tools/testing/selftests/bpf/config
@@ -1,59 +1,64 @@
+CONFIG_BLK_DEV_LOOP=y
 CONFIG_BPF=y
-CONFIG_BPF_SYSCALL=y
-CONFIG_NET_CLS_BPF=m
 CONFIG_BPF_EVENTS=y
-CONFIG_TEST_BPF=m
+CONFIG_BPF_JIT=y
+CONFIG_BPF_LIRC_MODE2=y
+CONFIG_BPF_LSM=y
+CONFIG_BPF_STREAM_PARSER=y
+CONFIG_BPF_SYSCALL=y
 CONFIG_CGROUP_BPF=y
-CONFIG_NETDEVSIM=m
-CONFIG_NET_CLS_ACT=y
-CONFIG_NET_SCHED=y
-CONFIG_NET_SCH_INGRESS=y
-CONFIG_NET_IPIP=y
-CONFIG_IPV6=y
-CONFIG_NET_IPGRE_DEMUX=y
-CONFIG_NET_IPGRE=y
-CONFIG_IPV6_GRE=y
-CONFIG_CRYPTO_USER_API_HASH=m
 CONFIG_CRYPTO_HMAC=m
 CONFIG_CRYPTO_SHA256=m
-CONFIG_VXLAN=y
-CONFIG_GENEVE=y
-CONFIG_NET_CLS_FLOWER=m
-CONFIG_LWTUNNEL=y
-CONFIG_BPF_STREAM_PARSER=y
-CONFIG_XDP_SOCKETS=y
+CONFIG_CRYPTO_USER_API_HASH=m
+CONFIG_DYNAMIC_FTRACE=y
+CONFIG_FPROBE=y
 CONFIG_FTRACE_SYSCALLS=y
-CONFIG_IPV6_TUNNEL=y
+CONFIG_FUNCTION_TRACER=y
+CONFIG_GENEVE=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_IMA=y
+CONFIG_IMA_READ_POLICY=y
+CONFIG_IMA_WRITE_POLICY=y
+CONFIG_IP_NF_FILTER=y
+CONFIG_IP_NF_RAW=y
+CONFIG_IP_NF_TARGET_SYNPROXY=y
+CONFIG_IPV6=y
+CONFIG_IPV6_FOU=m
+CONFIG_IPV6_FOU_TUNNEL=m
 CONFIG_IPV6_GRE=y
 CONFIG_IPV6_SEG6_BPF=y
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_TUNNEL=y
+CONFIG_LIRC=y
+CONFIG_LWTUNNEL=y
+CONFIG_MPLS=y
+CONFIG_MPLS_IPTUNNEL=m
+CONFIG_MPLS_ROUTING=m
+CONFIG_MPTCP=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_CLS_BPF=y
+CONFIG_NET_CLS_FLOWER=m
 CONFIG_NET_FOU=m
 CONFIG_NET_FOU_IP_TUNNELS=y
-CONFIG_IPV6_FOU=m
-CONFIG_IPV6_FOU_TUNNEL=m
-CONFIG_MPLS=y
+CONFIG_NET_IPGRE=y
+CONFIG_NET_IPGRE_DEMUX=y
+CONFIG_NET_IPIP=y
 CONFIG_NET_MPLS_GSO=m
-CONFIG_MPLS_ROUTING=m
-CONFIG_MPLS_IPTUNNEL=m
-CONFIG_IPV6_SIT=m
-CONFIG_BPF_JIT=y
-CONFIG_BPF_LSM=y
-CONFIG_SECURITY=y
-CONFIG_RC_CORE=y
-CONFIG_LIRC=y
-CONFIG_BPF_LIRC_MODE2=y
-CONFIG_IMA=y
-CONFIG_SECURITYFS=y
-CONFIG_IMA_WRITE_POLICY=y
-CONFIG_IMA_READ_POLICY=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_FUNCTION_TRACER=y
-CONFIG_DYNAMIC_FTRACE=y
+CONFIG_NET_SCH_INGRESS=y
+CONFIG_NET_SCHED=y
+CONFIG_NETDEVSIM=m
 CONFIG_NETFILTER=y
+CONFIG_NETFILTER_SYNPROXY=y
+CONFIG_NETFILTER_XT_MATCH_STATE=y
+CONFIG_NETFILTER_XT_TARGET_CT=y
+CONFIG_NF_CONNTRACK=y
 CONFIG_NF_DEFRAG_IPV4=y
 CONFIG_NF_DEFRAG_IPV6=y
-CONFIG_NF_CONNTRACK=y
+CONFIG_RC_CORE=y
+CONFIG_SECURITY=y
+CONFIG_SECURITYFS=y
+CONFIG_TEST_BPF=m
 CONFIG_USERFAULTFD=y
-CONFIG_FPROBE=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_MPTCP=y
+CONFIG_VXLAN=y
+CONFIG_XDP_SOCKETS=y
diff --git a/tools/testing/selftests/bpf/config.s390x b/tools/testing/selftests/bpf/config.s390x
new file mode 100644
index 000000000000..f8a7a258a718
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.s390x
@@ -0,0 +1,147 @@
+CONFIG_9P_FS=y
+CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y
+CONFIG_AUDIT=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BONDING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_JIT_DEFAULT_ON=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BPFILTER=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_NET_CLASSID=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CHECKPOINT_RESTORE=y
+CONFIG_CPUSETS=y
+CONFIG_CRASH_DUMP=y
+CONFIG_CRYPTO_USER_API_RNG=y
+CONFIG_CRYPTO_USER_API_SKCIPHER=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_DWARF4=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_LOCKDEP=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_DEBUG_PAGEALLOC=y
+CONFIG_DEBUG_SECTION_MISMATCH=y
+CONFIG_DEBUG_SG=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_DEVTMPFS=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_FANOTIFY=y
+CONFIG_FUNCTION_PROFILER=y
+CONFIG_GDB_SCRIPTS=y
+CONFIG_HAVE_EBPF_JIT=y
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KPROBES_ON_FTRACE=y
+CONFIG_HAVE_KRETPROBES=y
+CONFIG_HAVE_MARCH_Z10_FEATURES=y
+CONFIG_HAVE_MARCH_Z196_FEATURES=y
+CONFIG_HEADERS_INSTALL=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HUGETLBFS=y
+CONFIG_HW_RANDOM=y
+CONFIG_HZ_100=y
+CONFIG_IDLE_PAGE_TRACKING=y
+CONFIG_IKHEADERS=y
+CONFIG_INET6_ESP=y
+CONFIG_INET=y
+CONFIG_INET_ESP=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPVLAN=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KERNEL_UNCOMPRESSED=y
+CONFIG_KPROBES=y
+CONFIG_KPROBES_ON_FTRACE=y
+CONFIG_KRETPROBES=y
+CONFIG_KSM=y
+CONFIG_LATENCYTOP=y
+CONFIG_LIVEPATCH=y
+CONFIG_LOCK_STAT=y
+CONFIG_MACVLAN=y
+CONFIG_MACVTAP=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MARCH_Z196=y
+CONFIG_MARCH_Z196_TUNE=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULES=y
+CONFIG_NAMESPACES=y
+CONFIG_NET=y
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_ACT_GACT=y
+CONFIG_NET_KEY=y
+CONFIG_NET_SCH_FQ=y
+CONFIG_NET_VRF=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_TARGET_MARK=y
+CONFIG_NF_TABLES=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NR_CPUS=256
+CONFIG_NUMA=y
+CONFIG_PACKET=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTDUMP_DEBUGFS=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_SAMPLE_SECCOMP=y
+CONFIG_SAMPLES=y
+CONFIG_SCHED_TRACER=y
+CONFIG_SCSI=y
+CONFIG_SCSI_VIRTIO=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_STACK_TRACER=y
+CONFIG_STATIC_KEYS_SELFTEST=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASKSTATS=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_DCTCP=y
+CONFIG_TLS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UPROBES=y
+CONFIG_USELIB=y
+CONFIG_USER_NS=y
+CONFIG_VETH=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VLAN_8021Q=y
+CONFIG_XFRM_USER=y
diff --git a/tools/testing/selftests/bpf/config.x86_64 b/tools/testing/selftests/bpf/config.x86_64
new file mode 100644
index 000000000000..f0859a1d37ab
--- /dev/null
+++ b/tools/testing/selftests/bpf/config.x86_64
@@ -0,0 +1,251 @@
+CONFIG_9P_FS=y
+CONFIG_9P_FS_POSIX_ACL=y
+CONFIG_9P_FS_SECURITY=y
+CONFIG_AGP=y
+CONFIG_AGP_AMD64=y
+CONFIG_AGP_INTEL=y
+CONFIG_AGP_SIS=y
+CONFIG_AGP_VIA=y
+CONFIG_AMIGA_PARTITION=y
+CONFIG_AUDIT=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BINFMT_MISC=y
+CONFIG_BLK_CGROUP=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_DEV_BSGLIB=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_BONDING=y
+CONFIG_BOOTPARAM_HARDLOCKUP_PANIC=y
+CONFIG_BOOTTIME_TRACING=y
+CONFIG_BPF_JIT_ALWAYS_ON=y
+CONFIG_BPF_KPROBE_OVERRIDE=y
+CONFIG_BPF_PRELOAD=y
+CONFIG_BPF_PRELOAD_UMD=y
+CONFIG_BPFILTER=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUPS=y
+CONFIG_CMA=y
+CONFIG_CMA_AREAS=7
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPUSETS=y
+CONFIG_CRC_T10DIF=y
+CONFIG_CRYPTO_BLAKE2B=y
+CONFIG_CRYPTO_DEV_VIRTIO=m
+CONFIG_CRYPTO_SEQIV=y
+CONFIG_CRYPTO_XXHASH=y
+CONFIG_DCB=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_CREDENTIALS=y
+CONFIG_DEBUG_INFO_BTF=y
+CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEFAULT_FQ_CODEL=y
+CONFIG_DEFAULT_RENO=y
+CONFIG_DEFAULT_SECURITY_DAC=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DMA_CMA=y
+CONFIG_DNS_RESOLVER=y
+CONFIG_EFI=y
+CONFIG_EFI_STUB=y
+CONFIG_EXPERT=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_FAIL_FUNCTION=y
+CONFIG_FAULT_INJECTION=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
+CONFIG_FB=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_TILEBLITTING=y
+CONFIG_FB_VESA=y
+CONFIG_FONT_8x16=y
+CONFIG_FONT_MINI_4x6=y
+CONFIG_FONTS=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_GART_IOMMU=y
+CONFIG_GENERIC_PHY=y
+CONFIG_HARDLOCKUP_DETECTOR=y
+CONFIG_HID_A4TECH=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_GREENASIA=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_KYE=y
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SMARTJOYPLUS=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_HID_TOPSEED=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_ZEROPLUS=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_HPET=y
+CONFIG_HUGETLBFS=y
+CONFIG_HWPOISON_INJECT=y
+CONFIG_HZ_1000=y
+CONFIG_INET=y
+CONFIG_INPUT_EVDEV=y
+CONFIG_INTEL_POWERCLAMP=y
+CONFIG_IP6_NF_IPTABLES=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_NF_IPTABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IPV6_MIP6=y
+CONFIG_IPV6_ROUTE_INFO=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_SEG6_LWTUNNEL=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_IRQ_POLL=y
+CONFIG_JUMP_LABEL=y
+CONFIG_KARMA_PARTITION=y
+CONFIG_KEXEC=y
+CONFIG_KPROBES=y
+CONFIG_KSM=y
+CONFIG_LEGACY_VSYSCALL_NONE=y
+CONFIG_LOG_BUF_SHIFT=21
+CONFIG_LOG_CPU_MAX_BUF_SHIFT=0
+CONFIG_LOGO=y
+CONFIG_LSM="selinux,bpf,integrity"
+CONFIG_MAC_PARTITION=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_MCORE2=y
+CONFIG_MEMCG=y
+CONFIG_MEMORY_FAILURE=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_MODULE_SIG=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULES=y
+CONFIG_MODVERSIONS=y
+CONFIG_NAMESPACES=y
+CONFIG_NET=y
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_NET_ACT_BPF=y
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_EMATCH=y
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_NET_L3_MASTER_DEV=y
+CONFIG_NET_SCH_DEFAULT=y
+CONFIG_NET_SCH_FQ_CODEL=y
+CONFIG_NET_TC_SKB_EXT=y
+CONFIG_NET_VRF=y
+CONFIG_NETDEVICES=y
+CONFIG_NETFILTER_NETLINK_LOG=y
+CONFIG_NETFILTER_NETLINK_QUEUE=y
+CONFIG_NETFILTER_XT_MATCH_BPF=y
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=y
+CONFIG_NETLABEL=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NO_HZ=y
+CONFIG_NR_CPUS=128
+CONFIG_NUMA=y
+CONFIG_NUMA_BALANCING=y
+CONFIG_NVMEM=y
+CONFIG_OSF_PARTITION=y
+CONFIG_PACKET=y
+CONFIG_PANIC_ON_OOPS=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PCI=y
+CONFIG_PCI_IOV=y
+CONFIG_PCI_MSI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PHYSICAL_ALIGN=0x1000000
+CONFIG_POSIX_MQUEUE=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_PREEMPT=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROFILING=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_PTP_1588_CLOCK=y
+CONFIG_RC_DEVICES=y
+CONFIG_RC_LOOPBACK=y
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_SCHEDSTATS=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_DETECT_IRQ=y
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_NR_UARTS=32
+CONFIG_SERIAL_8250_RSA=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_NONSTANDARD=y
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SGI_PARTITION=y
+CONFIG_SMP=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_SUN_PARTITION=y
+CONFIG_SYNC_FILE=y
+CONFIG_SYSVIPC=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASKSTATS=y
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_MD5SIG=y
+CONFIG_TLS=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y
+CONFIG_TUN=y
+CONFIG_UNIX=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_USER_NS=y
+CONFIG_VALIDATE_FS_PARSER=y
+CONFIG_VETH=y
+CONFIG_VIRT_DRIVERS=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VLAN_8021Q=y
+CONFIG_X86_ACPI_CPUFREQ=y
+CONFIG_X86_CPUID=y
+CONFIG_X86_MSR=y
+CONFIG_X86_POWERNOW_K8=y
+CONFIG_XDP_SOCKETS_DIAG=y
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_USER=y
+CONFIG_ZEROPLUS_FF=y
diff --git a/tools/testing/selftests/bpf/network_helpers.c b/tools/testing/selftests/bpf/network_helpers.c
index 59cf81ec55af..bec15558fd93 100644
--- a/tools/testing/selftests/bpf/network_helpers.c
+++ b/tools/testing/selftests/bpf/network_helpers.c
@@ -436,7 +436,7 @@ struct nstoken *open_netns(const char *name)
 	int err;
 	struct nstoken *token;
 
-	token = malloc(sizeof(struct nstoken));
+	token = calloc(1, sizeof(struct nstoken));
 	if (!ASSERT_OK_PTR(token, "malloc token"))
 		return NULL;
 
diff --git a/tools/testing/selftests/bpf/prog_tests/attach_probe.c b/tools/testing/selftests/bpf/prog_tests/attach_probe.c
index 08c0601b3e84..0b899d2d8ea7 100644
--- a/tools/testing/selftests/bpf/prog_tests/attach_probe.c
+++ b/tools/testing/selftests/bpf/prog_tests/attach_probe.c
@@ -17,6 +17,14 @@ static void trigger_func2(void)
 	asm volatile ("");
 }
 
+/* attach point for byname sleepable uprobe */
+static void trigger_func3(void)
+{
+	asm volatile ("");
+}
+
+static char test_data[] = "test_data";
+
 void test_attach_probe(void)
 {
 	DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, uprobe_opts);
@@ -49,9 +57,17 @@ void test_attach_probe(void)
 	if (!ASSERT_GE(ref_ctr_offset, 0, "ref_ctr_offset"))
 		return;
 
-	skel = test_attach_probe__open_and_load();
+	skel = test_attach_probe__open();
 	if (!ASSERT_OK_PTR(skel, "skel_open"))
 		return;
+
+	/* sleepable kprobe test case needs flags set before loading */
+	if (!ASSERT_OK(bpf_program__set_flags(skel->progs.handle_kprobe_sleepable,
+		BPF_F_SLEEPABLE), "kprobe_sleepable_flags"))
+		goto cleanup;
+
+	if (!ASSERT_OK(test_attach_probe__load(skel), "skel_load"))
+		goto cleanup;
 	if (!ASSERT_OK_PTR(skel->bss, "check_bss"))
 		goto cleanup;
 
@@ -151,6 +167,30 @@ void test_attach_probe(void)
 	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname2, "attach_uretprobe_byname2"))
 		goto cleanup;
 
+	/* sleepable kprobes should not attach successfully */
+	skel->links.handle_kprobe_sleepable = bpf_program__attach(skel->progs.handle_kprobe_sleepable);
+	if (!ASSERT_ERR_PTR(skel->links.handle_kprobe_sleepable, "attach_kprobe_sleepable"))
+		goto cleanup;
+
+	/* test sleepable uprobe and uretprobe variants */
+	skel->links.handle_uprobe_byname3_sleepable = bpf_program__attach(skel->progs.handle_uprobe_byname3_sleepable);
+	if (!ASSERT_OK_PTR(skel->links.handle_uprobe_byname3_sleepable, "attach_uprobe_byname3_sleepable"))
+		goto cleanup;
+
+	skel->links.handle_uprobe_byname3 = bpf_program__attach(skel->progs.handle_uprobe_byname3);
+	if (!ASSERT_OK_PTR(skel->links.handle_uprobe_byname3, "attach_uprobe_byname3"))
+		goto cleanup;
+
+	skel->links.handle_uretprobe_byname3_sleepable = bpf_program__attach(skel->progs.handle_uretprobe_byname3_sleepable);
+	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname3_sleepable, "attach_uretprobe_byname3_sleepable"))
+		goto cleanup;
+
+	skel->links.handle_uretprobe_byname3 = bpf_program__attach(skel->progs.handle_uretprobe_byname3);
+	if (!ASSERT_OK_PTR(skel->links.handle_uretprobe_byname3, "attach_uretprobe_byname3"))
+		goto cleanup;
+
+	skel->bss->user_ptr = test_data;
+
 	/* trigger & validate kprobe && kretprobe */
 	usleep(1);
 
@@ -164,6 +204,9 @@ void test_attach_probe(void)
 	/* trigger & validate uprobe attached by name */
 	trigger_func2();
 
+	/* trigger & validate sleepable uprobe attached by name */
+	trigger_func3();
+
 	ASSERT_EQ(skel->bss->kprobe_res, 1, "check_kprobe_res");
 	ASSERT_EQ(skel->bss->kprobe2_res, 11, "check_kprobe_auto_res");
 	ASSERT_EQ(skel->bss->kretprobe_res, 2, "check_kretprobe_res");
@@ -174,6 +217,10 @@ void test_attach_probe(void)
 	ASSERT_EQ(skel->bss->uretprobe_byname_res, 6, "check_uretprobe_byname_res");
 	ASSERT_EQ(skel->bss->uprobe_byname2_res, 7, "check_uprobe_byname2_res");
 	ASSERT_EQ(skel->bss->uretprobe_byname2_res, 8, "check_uretprobe_byname2_res");
+	ASSERT_EQ(skel->bss->uprobe_byname3_sleepable_res, 9, "check_uprobe_byname3_sleepable_res");
+	ASSERT_EQ(skel->bss->uprobe_byname3_res, 10, "check_uprobe_byname3_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname3_sleepable_res, 11, "check_uretprobe_byname3_sleepable_res");
+	ASSERT_EQ(skel->bss->uretprobe_byname3_res, 12, "check_uretprobe_byname3_res");
 
 cleanup:
 	test_attach_probe__destroy(skel);
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
index 7ff5fa93d056..a33874b081b6 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_iter.c
@@ -27,6 +27,7 @@
 #include "bpf_iter_test_kern5.skel.h"
 #include "bpf_iter_test_kern6.skel.h"
 #include "bpf_iter_bpf_link.skel.h"
+#include "bpf_iter_ksym.skel.h"
 
 static int duration;
 
@@ -1120,6 +1121,19 @@ static void test_link_iter(void)
 	bpf_iter_bpf_link__destroy(skel);
 }
 
+static void test_ksym_iter(void)
+{
+	struct bpf_iter_ksym *skel;
+
+	skel = bpf_iter_ksym__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "bpf_iter_ksym__open_and_load"))
+		return;
+
+	do_dummy_read(skel->progs.dump_ksym);
+
+	bpf_iter_ksym__destroy(skel);
+}
+
 #define CMP_BUFFER_SIZE 1024
 static char task_vma_output[CMP_BUFFER_SIZE];
 static char proc_maps_output[CMP_BUFFER_SIZE];
@@ -1267,4 +1281,6 @@ void test_bpf_iter(void)
 		test_buf_neg_offset();
 	if (test__start_subtest("link-iter"))
 		test_link_iter();
+	if (test__start_subtest("ksym"))
+		test_ksym_iter();
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_loop.c b/tools/testing/selftests/bpf/prog_tests/bpf_loop.c
index 380d7a2072e3..4cd8a25afe68 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_loop.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_loop.c
@@ -120,6 +120,64 @@ static void check_nested_calls(struct bpf_loop *skel)
 	bpf_link__destroy(link);
 }
 
+static void check_non_constant_callback(struct bpf_loop *skel)
+{
+	struct bpf_link *link =
+		bpf_program__attach(skel->progs.prog_non_constant_callback);
+
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	skel->bss->callback_selector = 0x0F;
+	usleep(1);
+	ASSERT_EQ(skel->bss->g_output, 0x0F, "g_output #1");
+
+	skel->bss->callback_selector = 0xF0;
+	usleep(1);
+	ASSERT_EQ(skel->bss->g_output, 0xF0, "g_output #2");
+
+	bpf_link__destroy(link);
+}
+
+static void check_stack(struct bpf_loop *skel)
+{
+	struct bpf_link *link = bpf_program__attach(skel->progs.stack_check);
+	const int max_key = 12;
+	int key;
+	int map_fd;
+
+	if (!ASSERT_OK_PTR(link, "link"))
+		return;
+
+	map_fd = bpf_map__fd(skel->maps.map1);
+
+	if (!ASSERT_GE(map_fd, 0, "bpf_map__fd"))
+		goto out;
+
+	for (key = 1; key <= max_key; ++key) {
+		int val = key;
+		int err = bpf_map_update_elem(map_fd, &key, &val, BPF_NOEXIST);
+
+		if (!ASSERT_OK(err, "bpf_map_update_elem"))
+			goto out;
+	}
+
+	usleep(1);
+
+	for (key = 1; key <= max_key; ++key) {
+		int val;
+		int err = bpf_map_lookup_elem(map_fd, &key, &val);
+
+		if (!ASSERT_OK(err, "bpf_map_lookup_elem"))
+			goto out;
+		if (!ASSERT_EQ(val, key + 1, "bad value in the map"))
+			goto out;
+	}
+
+out:
+	bpf_link__destroy(link);
+}
+
 void test_bpf_loop(void)
 {
 	struct bpf_loop *skel;
@@ -140,6 +198,10 @@ void test_bpf_loop(void)
 		check_invalid_flags(skel);
 	if (test__start_subtest("check_nested_calls"))
 		check_nested_calls(skel);
+	if (test__start_subtest("check_non_constant_callback"))
+		check_non_constant_callback(skel);
+	if (test__start_subtest("check_stack"))
+		check_stack(skel);
 
 	bpf_loop__destroy(skel);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_nf.c b/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
index dd30b1e3a67c..7a74a1579076 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_nf.c
@@ -2,13 +2,29 @@
 #include <test_progs.h>
 #include <network_helpers.h>
 #include "test_bpf_nf.skel.h"
+#include "test_bpf_nf_fail.skel.h"
+
+static char log_buf[1024 * 1024];
+
+struct {
+	const char *prog_name;
+	const char *err_msg;
+} test_bpf_nf_fail_tests[] = {
+	{ "alloc_release", "kernel function bpf_ct_release args#0 expected pointer to STRUCT nf_conn but" },
+	{ "insert_insert", "kernel function bpf_ct_insert_entry args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "lookup_insert", "kernel function bpf_ct_insert_entry args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "set_timeout_after_insert", "kernel function bpf_ct_set_timeout args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "set_status_after_insert", "kernel function bpf_ct_set_status args#0 expected pointer to STRUCT nf_conn___init but" },
+	{ "change_timeout_after_alloc", "kernel function bpf_ct_change_timeout args#0 expected pointer to STRUCT nf_conn but" },
+	{ "change_status_after_alloc", "kernel function bpf_ct_change_status args#0 expected pointer to STRUCT nf_conn but" },
+};
 
 enum {
 	TEST_XDP,
 	TEST_TC_BPF,
 };
 
-void test_bpf_nf_ct(int mode)
+static void test_bpf_nf_ct(int mode)
 {
 	struct test_bpf_nf *skel;
 	int prog_fd, err;
@@ -39,14 +55,60 @@ void test_bpf_nf_ct(int mode)
 	ASSERT_EQ(skel->bss->test_enonet_netns_id, -ENONET, "Test ENONET for bad but valid netns_id");
 	ASSERT_EQ(skel->bss->test_enoent_lookup, -ENOENT, "Test ENOENT for failed lookup");
 	ASSERT_EQ(skel->bss->test_eafnosupport, -EAFNOSUPPORT, "Test EAFNOSUPPORT for invalid len__tuple");
+	ASSERT_EQ(skel->data->test_alloc_entry, 0, "Test for alloc new entry");
+	ASSERT_EQ(skel->data->test_insert_entry, 0, "Test for insert new entry");
+	ASSERT_EQ(skel->data->test_succ_lookup, 0, "Test for successful lookup");
+	/* allow some tolerance for test_delta_timeout value to avoid races. */
+	ASSERT_GT(skel->bss->test_delta_timeout, 8, "Test for min ct timeout update");
+	ASSERT_LE(skel->bss->test_delta_timeout, 10, "Test for max ct timeout update");
+	/* expected status is IPS_SEEN_REPLY */
+	ASSERT_EQ(skel->bss->test_status, 2, "Test for ct status update ");
 end:
 	test_bpf_nf__destroy(skel);
 }
 
+static void test_bpf_nf_ct_fail(const char *prog_name, const char *err_msg)
+{
+	LIBBPF_OPTS(bpf_object_open_opts, opts, .kernel_log_buf = log_buf,
+						.kernel_log_size = sizeof(log_buf),
+						.kernel_log_level = 1);
+	struct test_bpf_nf_fail *skel;
+	struct bpf_program *prog;
+	int ret;
+
+	skel = test_bpf_nf_fail__open_opts(&opts);
+	if (!ASSERT_OK_PTR(skel, "test_bpf_nf_fail__open"))
+		return;
+
+	prog = bpf_object__find_program_by_name(skel->obj, prog_name);
+	if (!ASSERT_OK_PTR(prog, "bpf_object__find_program_by_name"))
+		goto end;
+
+	bpf_program__set_autoload(prog, true);
+
+	ret = test_bpf_nf_fail__load(skel);
+	if (!ASSERT_ERR(ret, "test_bpf_nf_fail__load must fail"))
+		goto end;
+
+	if (!ASSERT_OK_PTR(strstr(log_buf, err_msg), "expected error message")) {
+		fprintf(stderr, "Expected: %s\n", err_msg);
+		fprintf(stderr, "Verifier: %s\n", log_buf);
+	}
+
+end:
+	test_bpf_nf_fail__destroy(skel);
+}
+
 void test_bpf_nf(void)
 {
+	int i;
 	if (test__start_subtest("xdp-ct"))
 		test_bpf_nf_ct(TEST_XDP);
 	if (test__start_subtest("tc-bpf-ct"))
 		test_bpf_nf_ct(TEST_TC_BPF);
+	for (i = 0; i < ARRAY_SIZE(test_bpf_nf_fail_tests); i++) {
+		if (test__start_subtest(test_bpf_nf_fail_tests[i].prog_name))
+			test_bpf_nf_ct_fail(test_bpf_nf_fail_tests[i].prog_name,
+					    test_bpf_nf_fail_tests[i].err_msg);
+	}
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
index e9a9a31b2ffe..2959a52ced06 100644
--- a/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
+++ b/tools/testing/selftests/bpf/prog_tests/bpf_tcp_ca.c
@@ -9,6 +9,9 @@
 #include "bpf_cubic.skel.h"
 #include "bpf_tcp_nogpl.skel.h"
 #include "bpf_dctcp_release.skel.h"
+#include "tcp_ca_write_sk_pacing.skel.h"
+#include "tcp_ca_incompl_cong_ops.skel.h"
+#include "tcp_ca_unsupp_cong_op.skel.h"
 
 #ifndef ENOTSUPP
 #define ENOTSUPP 524
@@ -322,6 +325,58 @@ static void test_rel_setsockopt(void)
 	bpf_dctcp_release__destroy(rel_skel);
 }
 
+static void test_write_sk_pacing(void)
+{
+	struct tcp_ca_write_sk_pacing *skel;
+	struct bpf_link *link;
+
+	skel = tcp_ca_write_sk_pacing__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	link = bpf_map__attach_struct_ops(skel->maps.write_sk_pacing);
+	ASSERT_OK_PTR(link, "attach_struct_ops");
+
+	bpf_link__destroy(link);
+	tcp_ca_write_sk_pacing__destroy(skel);
+}
+
+static void test_incompl_cong_ops(void)
+{
+	struct tcp_ca_incompl_cong_ops *skel;
+	struct bpf_link *link;
+
+	skel = tcp_ca_incompl_cong_ops__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		return;
+
+	/* That cong_avoid() and cong_control() are missing is only reported at
+	 * this point:
+	 */
+	link = bpf_map__attach_struct_ops(skel->maps.incompl_cong_ops);
+	ASSERT_ERR_PTR(link, "attach_struct_ops");
+
+	bpf_link__destroy(link);
+	tcp_ca_incompl_cong_ops__destroy(skel);
+}
+
+static void test_unsupp_cong_op(void)
+{
+	libbpf_print_fn_t old_print_fn;
+	struct tcp_ca_unsupp_cong_op *skel;
+
+	err_str = "attach to unsupported member get_info";
+	found = false;
+	old_print_fn = libbpf_set_print(libbpf_debug_print);
+
+	skel = tcp_ca_unsupp_cong_op__open_and_load();
+	ASSERT_NULL(skel, "open_and_load");
+	ASSERT_EQ(found, true, "expected_err_msg");
+
+	tcp_ca_unsupp_cong_op__destroy(skel);
+	libbpf_set_print(old_print_fn);
+}
+
 void test_bpf_tcp_ca(void)
 {
 	if (test__start_subtest("dctcp"))
@@ -334,4 +389,10 @@ void test_bpf_tcp_ca(void)
 		test_dctcp_fallback();
 	if (test__start_subtest("rel_setsockopt"))
 		test_rel_setsockopt();
+	if (test__start_subtest("write_sk_pacing"))
+		test_write_sk_pacing();
+	if (test__start_subtest("incompl_cong_ops"))
+		test_incompl_cong_ops();
+	if (test__start_subtest("unsupp_cong_op"))
+		test_unsupp_cong_op();
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/btf.c b/tools/testing/selftests/bpf/prog_tests/btf.c
index ba5bde53d418..ef6528b8084c 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf.c
@@ -34,7 +34,6 @@ static bool always_log;
 #undef CHECK
 #define CHECK(condition, format...) _CHECK(condition, "check", duration, format)
 
-#define BTF_END_RAW 0xdeadbeef
 #define NAME_TBD 0xdeadb33f
 
 #define NAME_NTH(N) (0xfffe0000 | N)
@@ -2897,26 +2896,6 @@ static struct btf_raw_test raw_tests[] = {
 },
 
 {
-	.descr = "invalid enum kind_flag",
-	.raw_types = {
-		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
-		BTF_TYPE_ENC(0, BTF_INFO_ENC(BTF_KIND_ENUM, 1, 1), 4),	/* [2] */
-		BTF_ENUM_ENC(NAME_TBD, 0),
-		BTF_END_RAW,
-	},
-	BTF_STR_SEC("\0A"),
-	.map_type = BPF_MAP_TYPE_ARRAY,
-	.map_name = "enum_type_check_btf",
-	.key_size = sizeof(int),
-	.value_size = sizeof(int),
-	.key_type_id = 1,
-	.value_type_id = 1,
-	.max_entries = 4,
-	.btf_load_err = true,
-	.err_str = "Invalid btf_info kind_flag",
-},
-
-{
 	.descr = "valid fwd kind_flag",
 	.raw_types = {
 		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),		/* [1] */
@@ -4072,6 +4051,42 @@ static struct btf_raw_test raw_tests[] = {
 	.btf_load_err = true,
 	.err_str = "Type tags don't precede modifiers",
 },
+{
+	.descr = "enum64 test #1, unsigned, size 8",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8),	/* [2] */
+		BTF_ENUM64_ENC(NAME_TBD, 0, 0),
+		BTF_ENUM64_ENC(NAME_TBD, 1, 1),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0a\0b\0c"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 8,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+},
+{
+	.descr = "enum64 test #2, signed, size 4",
+	.raw_types = {
+		BTF_TYPE_INT_ENC(0, BTF_INT_SIGNED, 0, 32, 4),			/* [1] */
+		BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 1, 2), 4),	/* [2] */
+		BTF_ENUM64_ENC(NAME_TBD, -1, 0),
+		BTF_ENUM64_ENC(NAME_TBD, 1, 0),
+		BTF_END_RAW,
+	},
+	BTF_STR_SEC("\0a\0b\0c"),
+	.map_type = BPF_MAP_TYPE_ARRAY,
+	.map_name = "tag_type_check_btf",
+	.key_size = sizeof(int),
+	.value_size = 4,
+	.key_type_id = 1,
+	.value_type_id = 2,
+	.max_entries = 1,
+},
 
 }; /* struct btf_raw_test raw_tests[] */
 
@@ -4636,7 +4651,6 @@ struct btf_file_test {
 };
 
 static struct btf_file_test file_tests[] = {
-	{ .file = "test_btf_haskv.o", },
 	{ .file = "test_btf_newkv.o", },
 	{ .file = "test_btf_nokv.o", .btf_kv_notfound = true, },
 };
@@ -5324,7 +5338,7 @@ static void do_test_pprint(int test_num)
 	ret = snprintf(pin_path, sizeof(pin_path), "%s/%s",
 		       "/sys/fs/bpf", test->map_name);
 
-	if (CHECK(ret == sizeof(pin_path), "pin_path %s/%s is too long",
+	if (CHECK(ret >= sizeof(pin_path), "pin_path %s/%s is too long",
 		  "/sys/fs/bpf", test->map_name)) {
 		err = -1;
 		goto done;
@@ -7000,9 +7014,12 @@ static struct btf_dedup_test dedup_tests[] = {
 			BTF_DECL_TAG_ENC(NAME_TBD, 13, 1),				/* [16] decl_tag */
 			BTF_DECL_TAG_ENC(NAME_TBD, 7, -1),				/* [17] decl_tag */
 			BTF_TYPE_TAG_ENC(NAME_TBD, 8),					/* [18] type_tag */
+			BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8),	/* [19] enum64 */
+				BTF_ENUM64_ENC(NAME_TBD, 0, 0),
+				BTF_ENUM64_ENC(NAME_TBD, 1, 1),
 			BTF_END_RAW,
 		},
-		BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R"),
+		BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"),
 	},
 	.expect = {
 		.raw_types = {
@@ -7030,9 +7047,12 @@ static struct btf_dedup_test dedup_tests[] = {
 			BTF_DECL_TAG_ENC(NAME_TBD, 13, 1),				/* [16] decl_tag */
 			BTF_DECL_TAG_ENC(NAME_TBD, 7, -1),				/* [17] decl_tag */
 			BTF_TYPE_TAG_ENC(NAME_TBD, 8),					/* [18] type_tag */
+			BTF_TYPE_ENC(NAME_TBD, BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 2), 8),	/* [19] enum64 */
+				BTF_ENUM64_ENC(NAME_TBD, 0, 0),
+				BTF_ENUM64_ENC(NAME_TBD, 1, 1),
 			BTF_END_RAW,
 		},
-		BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R"),
+		BTF_STR_SEC("\0A\0B\0C\0D\0E\0F\0G\0H\0I\0J\0K\0L\0M\0N\0O\0P\0Q\0R\0S\0T\0U"),
 	},
 },
 {
@@ -7493,6 +7513,91 @@ static struct btf_dedup_test dedup_tests[] = {
 		BTF_STR_SEC("\0tag1\0t\0m"),
 	},
 },
+{
+	.descr = "dedup: enum64, standalone",
+	.input = {
+		.raw_types = {
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+	.expect = {
+		.raw_types = {
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+},
+{
+	.descr = "dedup: enum64, fwd resolution",
+	.input = {
+		.raw_types = {
+			/* [1] fwd enum64 'e1' before full enum */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
+			/* [2] full enum64 'e1' after fwd */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			/* [3] full enum64 'e2' before fwd */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(4), 0, 456),
+			/* [4] fwd enum64 'e2' after full enum */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 0), 8),
+			/* [5] incompatible full enum64 with different value */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 0, 321),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] full enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 123),
+			/* [2] full enum64 'e2' */
+			BTF_TYPE_ENC(NAME_NTH(3), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(4), 0, 456),
+			/* [3] incompatible full enum64 with different value */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 8),
+				BTF_ENUM64_ENC(NAME_NTH(2), 0, 321),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val\0e2\0e2_val"),
+	},
+},
+{
+	.descr = "dedup: enum and enum64, no dedup",
+	.input = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+	.expect = {
+		.raw_types = {
+			/* [1] enum 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM, 0, 1), 4),
+				BTF_ENUM_ENC(NAME_NTH(2), 1),
+			/* [2] enum64 'e1' */
+			BTF_TYPE_ENC(NAME_NTH(1), BTF_INFO_ENC(BTF_KIND_ENUM64, 0, 1), 4),
+				BTF_ENUM64_ENC(NAME_NTH(2), 1, 0),
+			BTF_END_RAW,
+		},
+		BTF_STR_SEC("\0e1\0e1_val"),
+	},
+},
 
 };
 
@@ -7517,6 +7622,8 @@ static int btf_type_size(const struct btf_type *t)
 		return base_size + sizeof(__u32);
 	case BTF_KIND_ENUM:
 		return base_size + vlen * sizeof(struct btf_enum);
+	case BTF_KIND_ENUM64:
+		return base_size + vlen * sizeof(struct btf_enum64);
 	case BTF_KIND_ARRAY:
 		return base_size + sizeof(struct btf_array);
 	case BTF_KIND_STRUCT:
diff --git a/tools/testing/selftests/bpf/prog_tests/btf_write.c b/tools/testing/selftests/bpf/prog_tests/btf_write.c
index addf99c05896..6e36de1302fc 100644
--- a/tools/testing/selftests/bpf/prog_tests/btf_write.c
+++ b/tools/testing/selftests/bpf/prog_tests/btf_write.c
@@ -9,6 +9,7 @@ static void gen_btf(struct btf *btf)
 	const struct btf_var_secinfo *vi;
 	const struct btf_type *t;
 	const struct btf_member *m;
+	const struct btf_enum64 *v64;
 	const struct btf_enum *v;
 	const struct btf_param *p;
 	int id, err, str_off;
@@ -171,7 +172,7 @@ static void gen_btf(struct btf *btf)
 	ASSERT_STREQ(btf__str_by_offset(btf, v->name_off), "v2", "v2_name");
 	ASSERT_EQ(v->val, 2, "v2_val");
 	ASSERT_STREQ(btf_type_raw_dump(btf, 9),
-		     "[9] ENUM 'e1' size=4 vlen=2\n"
+		     "[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
 		     "\t'v1' val=1\n"
 		     "\t'v2' val=2", "raw_dump");
 
@@ -202,7 +203,7 @@ static void gen_btf(struct btf *btf)
 	ASSERT_EQ(btf_vlen(t), 0, "enum_fwd_kind");
 	ASSERT_EQ(t->size, 4, "enum_fwd_sz");
 	ASSERT_STREQ(btf_type_raw_dump(btf, 12),
-		     "[12] ENUM 'enum_fwd' size=4 vlen=0", "raw_dump");
+		     "[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0", "raw_dump");
 
 	/* TYPEDEF */
 	id = btf__add_typedef(btf, "typedef1", 1);
@@ -307,6 +308,48 @@ static void gen_btf(struct btf *btf)
 	ASSERT_EQ(t->type, 1, "tag_type");
 	ASSERT_STREQ(btf_type_raw_dump(btf, 20),
 		     "[20] TYPE_TAG 'tag1' type_id=1", "raw_dump");
+
+	/* ENUM64 */
+	id = btf__add_enum64(btf, "e1", 8, true);
+	ASSERT_EQ(id, 21, "enum64_id");
+	err = btf__add_enum64_value(btf, "v1", -1);
+	ASSERT_OK(err, "v1_res");
+	err = btf__add_enum64_value(btf, "v2", 0x123456789); /* 4886718345 */
+	ASSERT_OK(err, "v2_res");
+	t = btf__type_by_id(btf, 21);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum64_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM64, "enum64_kind");
+	ASSERT_EQ(btf_vlen(t), 2, "enum64_vlen");
+	ASSERT_EQ(t->size, 8, "enum64_sz");
+	v64 = btf_enum64(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v1", "v1_name");
+	ASSERT_EQ(v64->val_hi32, 0xffffffff, "v1_val");
+	ASSERT_EQ(v64->val_lo32, 0xffffffff, "v1_val");
+	v64 = btf_enum64(t) + 1;
+	ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v2", "v2_name");
+	ASSERT_EQ(v64->val_hi32, 0x1, "v2_val");
+	ASSERT_EQ(v64->val_lo32, 0x23456789, "v2_val");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 21),
+		     "[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		     "\t'v1' val=-1\n"
+		     "\t'v2' val=4886718345", "raw_dump");
+
+	id = btf__add_enum64(btf, "e1", 8, false);
+	ASSERT_EQ(id, 22, "enum64_id");
+	err = btf__add_enum64_value(btf, "v1", 0xffffffffFFFFFFFF); /* 18446744073709551615 */
+	ASSERT_OK(err, "v1_res");
+	t = btf__type_by_id(btf, 22);
+	ASSERT_STREQ(btf__str_by_offset(btf, t->name_off), "e1", "enum64_name");
+	ASSERT_EQ(btf_kind(t), BTF_KIND_ENUM64, "enum64_kind");
+	ASSERT_EQ(btf_vlen(t), 1, "enum64_vlen");
+	ASSERT_EQ(t->size, 8, "enum64_sz");
+	v64 = btf_enum64(t) + 0;
+	ASSERT_STREQ(btf__str_by_offset(btf, v64->name_off), "v1", "v1_name");
+	ASSERT_EQ(v64->val_hi32, 0xffffffff, "v1_val");
+	ASSERT_EQ(v64->val_lo32, 0xffffffff, "v1_val");
+	ASSERT_STREQ(btf_type_raw_dump(btf, 22),
+		     "[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		     "\t'v1' val=18446744073709551615", "raw_dump");
 }
 
 static void test_btf_add()
@@ -332,12 +375,12 @@ static void test_btf_add()
 		"\t'f2' type_id=1 bits_offset=32 bitfield_size=16",
 		"[8] UNION 'u1' size=8 vlen=1\n"
 		"\t'f1' type_id=1 bits_offset=0 bitfield_size=16",
-		"[9] ENUM 'e1' size=4 vlen=2\n"
+		"[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
 		"\t'v1' val=1\n"
 		"\t'v2' val=2",
 		"[10] FWD 'struct_fwd' fwd_kind=struct",
 		"[11] FWD 'union_fwd' fwd_kind=union",
-		"[12] ENUM 'enum_fwd' size=4 vlen=0",
+		"[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
 		"[13] TYPEDEF 'typedef1' type_id=1",
 		"[14] FUNC 'func1' type_id=15 linkage=global",
 		"[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
@@ -348,7 +391,12 @@ static void test_btf_add()
 		"\ttype_id=1 offset=4 size=8",
 		"[18] DECL_TAG 'tag1' type_id=16 component_idx=-1",
 		"[19] DECL_TAG 'tag2' type_id=14 component_idx=1",
-		"[20] TYPE_TAG 'tag1' type_id=1");
+		"[20] TYPE_TAG 'tag1' type_id=1",
+		"[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		"\t'v1' val=-1\n"
+		"\t'v2' val=4886718345",
+		"[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		"\t'v1' val=18446744073709551615");
 
 	btf__free(btf);
 }
@@ -370,7 +418,7 @@ static void test_btf_add_btf()
 	gen_btf(btf2);
 
 	id = btf__add_btf(btf1, btf2);
-	if (!ASSERT_EQ(id, 21, "id"))
+	if (!ASSERT_EQ(id, 23, "id"))
 		goto cleanup;
 
 	VALIDATE_RAW_BTF(
@@ -386,12 +434,12 @@ static void test_btf_add_btf()
 		"\t'f2' type_id=1 bits_offset=32 bitfield_size=16",
 		"[8] UNION 'u1' size=8 vlen=1\n"
 		"\t'f1' type_id=1 bits_offset=0 bitfield_size=16",
-		"[9] ENUM 'e1' size=4 vlen=2\n"
+		"[9] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
 		"\t'v1' val=1\n"
 		"\t'v2' val=2",
 		"[10] FWD 'struct_fwd' fwd_kind=struct",
 		"[11] FWD 'union_fwd' fwd_kind=union",
-		"[12] ENUM 'enum_fwd' size=4 vlen=0",
+		"[12] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
 		"[13] TYPEDEF 'typedef1' type_id=1",
 		"[14] FUNC 'func1' type_id=15 linkage=global",
 		"[15] FUNC_PROTO '(anon)' ret_type_id=1 vlen=2\n"
@@ -403,36 +451,46 @@ static void test_btf_add_btf()
 		"[18] DECL_TAG 'tag1' type_id=16 component_idx=-1",
 		"[19] DECL_TAG 'tag2' type_id=14 component_idx=1",
 		"[20] TYPE_TAG 'tag1' type_id=1",
+		"[21] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		"\t'v1' val=-1\n"
+		"\t'v2' val=4886718345",
+		"[22] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		"\t'v1' val=18446744073709551615",
 
 		/* types appended from the second BTF */
-		"[21] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
-		"[22] PTR '(anon)' type_id=21",
-		"[23] CONST '(anon)' type_id=25",
-		"[24] VOLATILE '(anon)' type_id=23",
-		"[25] RESTRICT '(anon)' type_id=24",
-		"[26] ARRAY '(anon)' type_id=22 index_type_id=21 nr_elems=10",
-		"[27] STRUCT 's1' size=8 vlen=2\n"
-		"\t'f1' type_id=21 bits_offset=0\n"
-		"\t'f2' type_id=21 bits_offset=32 bitfield_size=16",
-		"[28] UNION 'u1' size=8 vlen=1\n"
-		"\t'f1' type_id=21 bits_offset=0 bitfield_size=16",
-		"[29] ENUM 'e1' size=4 vlen=2\n"
+		"[23] INT 'int' size=4 bits_offset=0 nr_bits=32 encoding=SIGNED",
+		"[24] PTR '(anon)' type_id=23",
+		"[25] CONST '(anon)' type_id=27",
+		"[26] VOLATILE '(anon)' type_id=25",
+		"[27] RESTRICT '(anon)' type_id=26",
+		"[28] ARRAY '(anon)' type_id=24 index_type_id=23 nr_elems=10",
+		"[29] STRUCT 's1' size=8 vlen=2\n"
+		"\t'f1' type_id=23 bits_offset=0\n"
+		"\t'f2' type_id=23 bits_offset=32 bitfield_size=16",
+		"[30] UNION 'u1' size=8 vlen=1\n"
+		"\t'f1' type_id=23 bits_offset=0 bitfield_size=16",
+		"[31] ENUM 'e1' encoding=UNSIGNED size=4 vlen=2\n"
 		"\t'v1' val=1\n"
 		"\t'v2' val=2",
-		"[30] FWD 'struct_fwd' fwd_kind=struct",
-		"[31] FWD 'union_fwd' fwd_kind=union",
-		"[32] ENUM 'enum_fwd' size=4 vlen=0",
-		"[33] TYPEDEF 'typedef1' type_id=21",
-		"[34] FUNC 'func1' type_id=35 linkage=global",
-		"[35] FUNC_PROTO '(anon)' ret_type_id=21 vlen=2\n"
-		"\t'p1' type_id=21\n"
-		"\t'p2' type_id=22",
-		"[36] VAR 'var1' type_id=21, linkage=global-alloc",
-		"[37] DATASEC 'datasec1' size=12 vlen=1\n"
-		"\ttype_id=21 offset=4 size=8",
-		"[38] DECL_TAG 'tag1' type_id=36 component_idx=-1",
-		"[39] DECL_TAG 'tag2' type_id=34 component_idx=1",
-		"[40] TYPE_TAG 'tag1' type_id=21");
+		"[32] FWD 'struct_fwd' fwd_kind=struct",
+		"[33] FWD 'union_fwd' fwd_kind=union",
+		"[34] ENUM 'enum_fwd' encoding=UNSIGNED size=4 vlen=0",
+		"[35] TYPEDEF 'typedef1' type_id=23",
+		"[36] FUNC 'func1' type_id=37 linkage=global",
+		"[37] FUNC_PROTO '(anon)' ret_type_id=23 vlen=2\n"
+		"\t'p1' type_id=23\n"
+		"\t'p2' type_id=24",
+		"[38] VAR 'var1' type_id=23, linkage=global-alloc",
+		"[39] DATASEC 'datasec1' size=12 vlen=1\n"
+		"\ttype_id=23 offset=4 size=8",
+		"[40] DECL_TAG 'tag1' type_id=38 component_idx=-1",
+		"[41] DECL_TAG 'tag2' type_id=36 component_idx=1",
+		"[42] TYPE_TAG 'tag1' type_id=23",
+		"[43] ENUM64 'e1' encoding=SIGNED size=8 vlen=2\n"
+		"\t'v1' val=-1\n"
+		"\t'v2' val=4886718345",
+		"[44] ENUM64 'e1' encoding=UNSIGNED size=8 vlen=1\n"
+		"\t'v1' val=18446744073709551615");
 
 cleanup:
 	btf__free(btf1);
diff --git a/tools/testing/selftests/bpf/prog_tests/core_extern.c b/tools/testing/selftests/bpf/prog_tests/core_extern.c
index 1931a158510e..63a51e9f3630 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_extern.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_extern.c
@@ -39,6 +39,7 @@ static struct test_case {
 		       "CONFIG_STR=\"abracad\"\n"
 		       "CONFIG_MISSING=0",
 		.data = {
+			.unkn_virt_val = 0,
 			.bpf_syscall = false,
 			.tristate_val = TRI_MODULE,
 			.bool_val = true,
@@ -121,7 +122,7 @@ static struct test_case {
 void test_core_extern(void)
 {
 	const uint32_t kern_ver = get_kernel_version();
-	int err, duration = 0, i, j;
+	int err, i, j;
 	struct test_core_extern *skel = NULL;
 	uint64_t *got, *exp;
 	int n = sizeof(*skel->data) / sizeof(uint64_t);
@@ -136,19 +137,17 @@ void test_core_extern(void)
 			continue;
 
 		skel = test_core_extern__open_opts(&opts);
-		if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
+		if (!ASSERT_OK_PTR(skel, "skel_open"))
 			goto cleanup;
 		err = test_core_extern__load(skel);
 		if (t->fails) {
-			CHECK(!err, "skel_load",
-			      "shouldn't succeed open/load of skeleton\n");
+			ASSERT_ERR(err, "skel_load_should_fail");
 			goto cleanup;
-		} else if (CHECK(err, "skel_load",
-				 "failed to open/load skeleton\n")) {
+		} else if (!ASSERT_OK(err, "skel_load")) {
 			goto cleanup;
 		}
 		err = test_core_extern__attach(skel);
-		if (CHECK(err, "attach_raw_tp", "failed attach: %d\n", err))
+		if (!ASSERT_OK(err, "attach_raw_tp"))
 			goto cleanup;
 
 		usleep(1);
@@ -158,9 +157,7 @@ void test_core_extern(void)
 		got = (uint64_t *)skel->data;
 		exp = (uint64_t *)&t->data;
 		for (j = 0; j < n; j++) {
-			CHECK(got[j] != exp[j], "check_res",
-			      "result #%d: expected %llx, but got %llx\n",
-			       j, (__u64)exp[j], (__u64)got[j]);
+			ASSERT_EQ(got[j], exp[j], "result");
 		}
 cleanup:
 		test_core_extern__destroy(skel);
diff --git a/tools/testing/selftests/bpf/prog_tests/core_reloc.c b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
index 3712dfe1be59..c8655ba9a88f 100644
--- a/tools/testing/selftests/bpf/prog_tests/core_reloc.c
+++ b/tools/testing/selftests/bpf/prog_tests/core_reloc.c
@@ -84,6 +84,7 @@ static int duration = 0;
 #define NESTING_ERR_CASE(name) {					\
 	NESTING_CASE_COMMON(name),					\
 	.fails = true,							\
+	.run_btfgen_fails = true,							\
 }
 
 #define ARRAYS_DATA(struct_name) STRUCT_TO_CHAR_PTR(struct_name) {	\
@@ -258,12 +259,14 @@ static int duration = 0;
 	BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_probed.o",	\
 			      "probed:", name),				\
 	.fails = true,							\
+	.run_btfgen_fails = true,							\
 	.raw_tp_name = "sys_enter",					\
 	.prog_name = "test_core_bitfields",				\
 }, {									\
 	BITFIELDS_CASE_COMMON("test_core_reloc_bitfields_direct.o",	\
 			      "direct:", name),				\
 	.fails = true,							\
+	.run_btfgen_fails = true,							\
 	.prog_name = "test_core_bitfields_direct",			\
 }
 
@@ -304,6 +307,7 @@ static int duration = 0;
 #define SIZE_ERR_CASE(name) {						\
 	SIZE_CASE_COMMON(name),						\
 	.fails = true,							\
+	.run_btfgen_fails = true,							\
 }
 
 #define TYPE_BASED_CASE_COMMON(name)					\
@@ -363,6 +367,25 @@ static int duration = 0;
 	.fails = true,							\
 }
 
+#define ENUM64VAL_CASE_COMMON(name)					\
+	.case_name = #name,						\
+	.bpf_obj_file = "test_core_reloc_enum64val.o",			\
+	.btf_src_file = "btf__core_reloc_" #name ".o",			\
+	.raw_tp_name = "sys_enter",					\
+	.prog_name = "test_core_enum64val"
+
+#define ENUM64VAL_CASE(name, ...) {					\
+	ENUM64VAL_CASE_COMMON(name),					\
+	.output = STRUCT_TO_CHAR_PTR(core_reloc_enum64val_output)	\
+			__VA_ARGS__,					\
+	.output_len = sizeof(struct core_reloc_enum64val_output),	\
+}
+
+#define ENUM64VAL_ERR_CASE(name) {					\
+	ENUM64VAL_CASE_COMMON(name),					\
+	.fails = true,							\
+}
+
 struct core_reloc_test_case;
 
 typedef int (*setup_test_fn)(struct core_reloc_test_case *test);
@@ -377,6 +400,7 @@ struct core_reloc_test_case {
 	const char *output;
 	int output_len;
 	bool fails;
+	bool run_btfgen_fails;
 	bool needs_testmod;
 	bool relaxed_core_relocs;
 	const char *prog_name;
@@ -519,7 +543,6 @@ static int __trigger_module_test_read(const struct core_reloc_test_case *test)
 	return 0;
 }
 
-
 static const struct core_reloc_test_case test_cases[] = {
 	/* validate we can find kernel image and use its BTF for relocs */
 	{
@@ -532,6 +555,7 @@ static const struct core_reloc_test_case test_cases[] = {
 			.valid = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, },
 			.comm = "test_progs",
 			.comm_len = sizeof("test_progs"),
+			.local_task_struct_matches = true,
 		},
 		.output_len = sizeof(struct core_reloc_kernel_output),
 		.raw_tp_name = "sys_enter",
@@ -728,9 +752,10 @@ static const struct core_reloc_test_case test_cases[] = {
 	SIZE_CASE(size___diff_offs),
 	SIZE_ERR_CASE(size___err_ambiguous),
 
-	/* validate type existence and size relocations */
+	/* validate type existence, match, and size relocations */
 	TYPE_BASED_CASE(type_based, {
 		.struct_exists = 1,
+		.complex_struct_exists = 1,
 		.union_exists = 1,
 		.enum_exists = 1,
 		.typedef_named_struct_exists = 1,
@@ -739,8 +764,24 @@ static const struct core_reloc_test_case test_cases[] = {
 		.typedef_int_exists = 1,
 		.typedef_enum_exists = 1,
 		.typedef_void_ptr_exists = 1,
+		.typedef_restrict_ptr_exists = 1,
 		.typedef_func_proto_exists = 1,
 		.typedef_arr_exists = 1,
+
+		.struct_matches = 1,
+		.complex_struct_matches = 1,
+		.union_matches = 1,
+		.enum_matches = 1,
+		.typedef_named_struct_matches = 1,
+		.typedef_anon_struct_matches = 1,
+		.typedef_struct_ptr_matches = 1,
+		.typedef_int_matches = 1,
+		.typedef_enum_matches = 1,
+		.typedef_void_ptr_matches = 1,
+		.typedef_restrict_ptr_matches = 1,
+		.typedef_func_proto_matches = 1,
+		.typedef_arr_matches = 1,
+
 		.struct_sz = sizeof(struct a_struct),
 		.union_sz = sizeof(union a_union),
 		.enum_sz = sizeof(enum an_enum),
@@ -756,6 +797,45 @@ static const struct core_reloc_test_case test_cases[] = {
 	TYPE_BASED_CASE(type_based___all_missing, {
 		/* all zeros */
 	}),
+	TYPE_BASED_CASE(type_based___diff, {
+		.struct_exists = 1,
+		.complex_struct_exists = 1,
+		.union_exists = 1,
+		.enum_exists = 1,
+		.typedef_named_struct_exists = 1,
+		.typedef_anon_struct_exists = 1,
+		.typedef_struct_ptr_exists = 1,
+		.typedef_int_exists = 1,
+		.typedef_enum_exists = 1,
+		.typedef_void_ptr_exists = 1,
+		.typedef_func_proto_exists = 1,
+		.typedef_arr_exists = 1,
+
+		.struct_matches = 1,
+		.complex_struct_matches = 1,
+		.union_matches = 1,
+		.enum_matches = 1,
+		.typedef_named_struct_matches = 1,
+		.typedef_anon_struct_matches = 1,
+		.typedef_struct_ptr_matches = 1,
+		.typedef_int_matches = 0,
+		.typedef_enum_matches = 1,
+		.typedef_void_ptr_matches = 1,
+		.typedef_func_proto_matches = 0,
+		.typedef_arr_matches = 0,
+
+		.struct_sz = sizeof(struct a_struct___diff),
+		.union_sz = sizeof(union a_union___diff),
+		.enum_sz = sizeof(enum an_enum___diff),
+		.typedef_named_struct_sz = sizeof(named_struct_typedef___diff),
+		.typedef_anon_struct_sz = sizeof(anon_struct_typedef___diff),
+		.typedef_struct_ptr_sz = sizeof(struct_ptr_typedef___diff),
+		.typedef_int_sz = sizeof(int_typedef___diff),
+		.typedef_enum_sz = sizeof(enum_typedef___diff),
+		.typedef_void_ptr_sz = sizeof(void_ptr_typedef___diff),
+		.typedef_func_proto_sz = sizeof(func_proto_typedef___diff),
+		.typedef_arr_sz = sizeof(arr_typedef___diff),
+	}),
 	TYPE_BASED_CASE(type_based___diff_sz, {
 		.struct_exists = 1,
 		.union_exists = 1,
@@ -768,6 +848,19 @@ static const struct core_reloc_test_case test_cases[] = {
 		.typedef_void_ptr_exists = 1,
 		.typedef_func_proto_exists = 1,
 		.typedef_arr_exists = 1,
+
+		.struct_matches = 0,
+		.union_matches = 0,
+		.enum_matches = 0,
+		.typedef_named_struct_matches = 0,
+		.typedef_anon_struct_matches = 0,
+		.typedef_struct_ptr_matches = 1,
+		.typedef_int_matches = 0,
+		.typedef_enum_matches = 0,
+		.typedef_void_ptr_matches = 1,
+		.typedef_func_proto_matches = 0,
+		.typedef_arr_matches = 0,
+
 		.struct_sz = sizeof(struct a_struct___diff_sz),
 		.union_sz = sizeof(union a_union___diff_sz),
 		.enum_sz = sizeof(enum an_enum___diff_sz),
@@ -782,10 +875,12 @@ static const struct core_reloc_test_case test_cases[] = {
 	}),
 	TYPE_BASED_CASE(type_based___incompat, {
 		.enum_exists = 1,
+		.enum_matches = 1,
 		.enum_sz = sizeof(enum an_enum),
 	}),
 	TYPE_BASED_CASE(type_based___fn_wrong_args, {
 		.struct_exists = 1,
+		.struct_matches = 1,
 		.struct_sz = sizeof(struct a_struct),
 	}),
 
@@ -831,6 +926,45 @@ static const struct core_reloc_test_case test_cases[] = {
 		.anon_val2 = 0x222,
 	}),
 	ENUMVAL_ERR_CASE(enumval___err_missing),
+
+	/* 64bit enumerator value existence and value relocations */
+	ENUM64VAL_CASE(enum64val, {
+		.unsigned_val1_exists = true,
+		.unsigned_val2_exists = true,
+		.unsigned_val3_exists = true,
+		.signed_val1_exists = true,
+		.signed_val2_exists = true,
+		.signed_val3_exists = true,
+		.unsigned_val1 = 0x1ffffffffULL,
+		.unsigned_val2 = 0x2,
+		.signed_val1 = 0x1ffffffffLL,
+		.signed_val2 = -2,
+	}),
+	ENUM64VAL_CASE(enum64val___diff, {
+		.unsigned_val1_exists = true,
+		.unsigned_val2_exists = true,
+		.unsigned_val3_exists = true,
+		.signed_val1_exists = true,
+		.signed_val2_exists = true,
+		.signed_val3_exists = true,
+		.unsigned_val1 = 0x101ffffffffULL,
+		.unsigned_val2 = 0x202ffffffffULL,
+		.signed_val1 = -101,
+		.signed_val2 = -202,
+	}),
+	ENUM64VAL_CASE(enum64val___val3_missing, {
+		.unsigned_val1_exists = true,
+		.unsigned_val2_exists = true,
+		.unsigned_val3_exists = false,
+		.signed_val1_exists = true,
+		.signed_val2_exists = true,
+		.signed_val3_exists = false,
+		.unsigned_val1 = 0x111ffffffffULL,
+		.unsigned_val2 = 0x222,
+		.signed_val1 = 0x111ffffffffLL,
+		.signed_val2 = -222,
+	}),
+	ENUM64VAL_ERR_CASE(enum64val___err_missing),
 };
 
 struct data {
@@ -894,7 +1028,7 @@ static void run_core_reloc_tests(bool use_btfgen)
 		/* generate a "minimal" BTF file and use it as source */
 		if (use_btfgen) {
 
-			if (!test_case->btf_src_file || test_case->fails) {
+			if (!test_case->btf_src_file || test_case->run_btfgen_fails) {
 				test__skip();
 				continue;
 			}
diff --git a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
index a7e74297f15f..5a7e6011f6bf 100644
--- a/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
+++ b/tools/testing/selftests/bpf/prog_tests/fexit_stress.c
@@ -7,11 +7,9 @@
 
 void serial_test_fexit_stress(void)
 {
-	char test_skb[128] = {};
 	int fexit_fd[CNT] = {};
 	int link_fd[CNT] = {};
-	char error[4096];
-	int err, i, filter_fd;
+	int err, i;
 
 	const struct bpf_insn trace_program[] = {
 		BPF_MOV64_IMM(BPF_REG_0, 0),
@@ -20,25 +18,9 @@ void serial_test_fexit_stress(void)
 
 	LIBBPF_OPTS(bpf_prog_load_opts, trace_opts,
 		.expected_attach_type = BPF_TRACE_FEXIT,
-		.log_buf = error,
-		.log_size = sizeof(error),
 	);
 
-	const struct bpf_insn skb_program[] = {
-		BPF_MOV64_IMM(BPF_REG_0, 0),
-		BPF_EXIT_INSN(),
-	};
-
-	LIBBPF_OPTS(bpf_prog_load_opts, skb_opts,
-		.log_buf = error,
-		.log_size = sizeof(error),
-	);
-
-	LIBBPF_OPTS(bpf_test_run_opts, topts,
-		.data_in = test_skb,
-		.data_size_in = sizeof(test_skb),
-		.repeat = 1,
-	);
+	LIBBPF_OPTS(bpf_test_run_opts, topts);
 
 	err = libbpf_find_vmlinux_btf_id("bpf_fentry_test1",
 					 trace_opts.expected_attach_type);
@@ -58,15 +40,9 @@ void serial_test_fexit_stress(void)
 			goto out;
 	}
 
-	filter_fd = bpf_prog_load(BPF_PROG_TYPE_SOCKET_FILTER, NULL, "GPL",
-				  skb_program, sizeof(skb_program) / sizeof(struct bpf_insn),
-				  &skb_opts);
-	if (!ASSERT_GE(filter_fd, 0, "test_program_loaded"))
-		goto out;
+	err = bpf_prog_test_run_opts(fexit_fd[0], &topts);
+	ASSERT_OK(err, "bpf_prog_test_run_opts");
 
-	err = bpf_prog_test_run_opts(filter_fd, &topts);
-	close(filter_fd);
-	CHECK_FAIL(err);
 out:
 	for (i = 0; i < CNT; i++) {
 		if (link_fd[i])
diff --git a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
index 5b93d5d0bd93..d457a55ff408 100644
--- a/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
+++ b/tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c
@@ -329,7 +329,7 @@ static int get_syms(char ***symsp, size_t *cntp)
 	struct hashmap *map;
 	char buf[256];
 	FILE *f;
-	int err;
+	int err = 0;
 
 	/*
 	 * The available_filter_functions contains many duplicates,
@@ -364,6 +364,8 @@ static int get_syms(char ***symsp, size_t *cntp)
 			continue;
 		if (!strncmp(name, "rcu_", 4))
 			continue;
+		if (!strcmp(name, "bpf_dispatcher_xdp_func"))
+			continue;
 		if (!strncmp(name, "__ftrace_invalid_address__",
 			     sizeof("__ftrace_invalid_address__") - 1))
 			continue;
@@ -407,7 +409,7 @@ static void test_bench_attach(void)
 	double attach_delta, detach_delta;
 	struct bpf_link *link = NULL;
 	char **syms = NULL;
-	size_t cnt, i;
+	size_t cnt = 0, i;
 
 	if (!ASSERT_OK(get_syms(&syms, &cnt), "get_syms"))
 		return;
diff --git a/tools/testing/selftests/bpf/prog_tests/libbpf_str.c b/tools/testing/selftests/bpf/prog_tests/libbpf_str.c
new file mode 100644
index 000000000000..93e9cddaadcf
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/libbpf_str.c
@@ -0,0 +1,207 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <ctype.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+/*
+ * Utility function uppercasing an entire string.
+ */
+static void uppercase(char *s)
+{
+	for (; *s != '\0'; s++)
+		*s = toupper(*s);
+}
+
+/*
+ * Test case to check that all bpf_attach_type variants are covered by
+ * libbpf_bpf_attach_type_str.
+ */
+static void test_libbpf_bpf_attach_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_attach_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_attach_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_attach_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_attach_type attach_type = (enum bpf_attach_type)e->val;
+		const char *attach_type_name;
+		const char *attach_type_str;
+		char buf[256];
+
+		if (attach_type == __MAX_BPF_ATTACH_TYPE)
+			continue;
+
+		attach_type_name = btf__str_by_offset(btf, e->name_off);
+		attach_type_str = libbpf_bpf_attach_type_str(attach_type);
+		ASSERT_OK_PTR(attach_type_str, attach_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_%s", attach_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, attach_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Test case to check that all bpf_link_type variants are covered by
+ * libbpf_bpf_link_type_str.
+ */
+static void test_libbpf_bpf_link_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_link_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_link_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_link_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_link_type link_type = (enum bpf_link_type)e->val;
+		const char *link_type_name;
+		const char *link_type_str;
+		char buf[256];
+
+		if (link_type == MAX_BPF_LINK_TYPE)
+			continue;
+
+		link_type_name = btf__str_by_offset(btf, e->name_off);
+		link_type_str = libbpf_bpf_link_type_str(link_type);
+		ASSERT_OK_PTR(link_type_str, link_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_LINK_TYPE_%s", link_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, link_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Test case to check that all bpf_map_type variants are covered by
+ * libbpf_bpf_map_type_str.
+ */
+static void test_libbpf_bpf_map_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_map_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_map_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_map_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_map_type map_type = (enum bpf_map_type)e->val;
+		const char *map_type_name;
+		const char *map_type_str;
+		char buf[256];
+
+		map_type_name = btf__str_by_offset(btf, e->name_off);
+		map_type_str = libbpf_bpf_map_type_str(map_type);
+		ASSERT_OK_PTR(map_type_str, map_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_MAP_TYPE_%s", map_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, map_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Test case to check that all bpf_prog_type variants are covered by
+ * libbpf_bpf_prog_type_str.
+ */
+static void test_libbpf_bpf_prog_type_str(void)
+{
+	struct btf *btf;
+	const struct btf_type *t;
+	const struct btf_enum *e;
+	int i, n, id;
+
+	btf = btf__parse("/sys/kernel/btf/vmlinux", NULL);
+	if (!ASSERT_OK_PTR(btf, "btf_parse"))
+		return;
+
+	/* find enum bpf_prog_type and enumerate each value */
+	id = btf__find_by_name_kind(btf, "bpf_prog_type", BTF_KIND_ENUM);
+	if (!ASSERT_GT(id, 0, "bpf_prog_type_id"))
+		goto cleanup;
+	t = btf__type_by_id(btf, id);
+	e = btf_enum(t);
+	n = btf_vlen(t);
+	for (i = 0; i < n; e++, i++) {
+		enum bpf_prog_type prog_type = (enum bpf_prog_type)e->val;
+		const char *prog_type_name;
+		const char *prog_type_str;
+		char buf[256];
+
+		prog_type_name = btf__str_by_offset(btf, e->name_off);
+		prog_type_str = libbpf_bpf_prog_type_str(prog_type);
+		ASSERT_OK_PTR(prog_type_str, prog_type_name);
+
+		snprintf(buf, sizeof(buf), "BPF_PROG_TYPE_%s", prog_type_str);
+		uppercase(buf);
+
+		ASSERT_STREQ(buf, prog_type_name, "exp_str_value");
+	}
+
+cleanup:
+	btf__free(btf);
+}
+
+/*
+ * Run all libbpf str conversion tests.
+ */
+void test_libbpf_str(void)
+{
+	if (test__start_subtest("bpf_attach_type_str"))
+		test_libbpf_bpf_attach_type_str();
+
+	if (test__start_subtest("bpf_link_type_str"))
+		test_libbpf_bpf_link_type_str();
+
+	if (test__start_subtest("bpf_map_type_str"))
+		test_libbpf_bpf_map_type_str();
+
+	if (test__start_subtest("bpf_prog_type_str"))
+		test_libbpf_bpf_prog_type_str();
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/lsm_cgroup.c b/tools/testing/selftests/bpf/prog_tests/lsm_cgroup.c
new file mode 100644
index 000000000000..1102e4f42d2d
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/lsm_cgroup.c
@@ -0,0 +1,313 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <test_progs.h>
+#include <bpf/btf.h>
+
+#include "lsm_cgroup.skel.h"
+#include "lsm_cgroup_nonvoid.skel.h"
+#include "cgroup_helpers.h"
+#include "network_helpers.h"
+
+#ifndef ENOTSUPP
+#define ENOTSUPP 524
+#endif
+
+static struct btf *btf;
+
+static __u32 query_prog_cnt(int cgroup_fd, const char *attach_func)
+{
+	LIBBPF_OPTS(bpf_prog_query_opts, p);
+	int cnt = 0;
+	int i;
+
+	ASSERT_OK(bpf_prog_query_opts(cgroup_fd, BPF_LSM_CGROUP, &p), "prog_query");
+
+	if (!attach_func)
+		return p.prog_cnt;
+
+	/* When attach_func is provided, count the number of progs that
+	 * attach to the given symbol.
+	 */
+
+	if (!btf)
+		btf = btf__load_vmlinux_btf();
+	if (!ASSERT_OK(libbpf_get_error(btf), "btf_vmlinux"))
+		return -1;
+
+	p.prog_ids = malloc(sizeof(u32) * p.prog_cnt);
+	p.prog_attach_flags = malloc(sizeof(u32) * p.prog_cnt);
+	ASSERT_OK(bpf_prog_query_opts(cgroup_fd, BPF_LSM_CGROUP, &p), "prog_query");
+
+	for (i = 0; i < p.prog_cnt; i++) {
+		struct bpf_prog_info info = {};
+		__u32 info_len = sizeof(info);
+		int fd;
+
+		fd = bpf_prog_get_fd_by_id(p.prog_ids[i]);
+		ASSERT_GE(fd, 0, "prog_get_fd_by_id");
+		ASSERT_OK(bpf_obj_get_info_by_fd(fd, &info, &info_len), "prog_info_by_fd");
+		close(fd);
+
+		if (info.attach_btf_id ==
+		    btf__find_by_name_kind(btf, attach_func, BTF_KIND_FUNC))
+			cnt++;
+	}
+
+	free(p.prog_ids);
+	free(p.prog_attach_flags);
+
+	return cnt;
+}
+
+static void test_lsm_cgroup_functional(void)
+{
+	DECLARE_LIBBPF_OPTS(bpf_prog_attach_opts, attach_opts);
+	DECLARE_LIBBPF_OPTS(bpf_link_update_opts, update_opts);
+	int cgroup_fd = -1, cgroup_fd2 = -1, cgroup_fd3 = -1;
+	int listen_fd, client_fd, accepted_fd;
+	struct lsm_cgroup *skel = NULL;
+	int post_create_prog_fd2 = -1;
+	int post_create_prog_fd = -1;
+	int bind_link_fd2 = -1;
+	int bind_prog_fd2 = -1;
+	int alloc_prog_fd = -1;
+	int bind_prog_fd = -1;
+	int bind_link_fd = -1;
+	int clone_prog_fd = -1;
+	int err, fd, prio;
+	socklen_t socklen;
+
+	cgroup_fd3 = test__join_cgroup("/sock_policy_empty");
+	if (!ASSERT_GE(cgroup_fd3, 0, "create empty cgroup"))
+		goto close_cgroup;
+
+	cgroup_fd2 = test__join_cgroup("/sock_policy_reuse");
+	if (!ASSERT_GE(cgroup_fd2, 0, "create cgroup for reuse"))
+		goto close_cgroup;
+
+	cgroup_fd = test__join_cgroup("/sock_policy");
+	if (!ASSERT_GE(cgroup_fd, 0, "join_cgroup"))
+		goto close_cgroup;
+
+	skel = lsm_cgroup__open_and_load();
+	if (!ASSERT_OK_PTR(skel, "open_and_load"))
+		goto close_cgroup;
+
+	post_create_prog_fd = bpf_program__fd(skel->progs.socket_post_create);
+	post_create_prog_fd2 = bpf_program__fd(skel->progs.socket_post_create2);
+	bind_prog_fd = bpf_program__fd(skel->progs.socket_bind);
+	bind_prog_fd2 = bpf_program__fd(skel->progs.socket_bind2);
+	alloc_prog_fd = bpf_program__fd(skel->progs.socket_alloc);
+	clone_prog_fd = bpf_program__fd(skel->progs.socket_clone);
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_sk_alloc_security"), 0, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 0, "total prog count");
+	err = bpf_prog_attach(alloc_prog_fd, cgroup_fd, BPF_LSM_CGROUP, 0);
+	if (err == -ENOTSUPP) {
+		test__skip();
+		goto close_cgroup;
+	}
+	if (!ASSERT_OK(err, "attach alloc_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_sk_alloc_security"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 1, "total prog count");
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_inet_csk_clone"), 0, "prog count");
+	err = bpf_prog_attach(clone_prog_fd, cgroup_fd, BPF_LSM_CGROUP, 0);
+	if (!ASSERT_OK(err, "attach clone_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_inet_csk_clone"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 2, "total prog count");
+
+	/* Make sure replacing works. */
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_post_create"), 0, "prog count");
+	err = bpf_prog_attach(post_create_prog_fd, cgroup_fd,
+			      BPF_LSM_CGROUP, 0);
+	if (!ASSERT_OK(err, "attach post_create_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_post_create"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 3, "total prog count");
+
+	attach_opts.replace_prog_fd = post_create_prog_fd;
+	err = bpf_prog_attach_opts(post_create_prog_fd2, cgroup_fd,
+				   BPF_LSM_CGROUP, &attach_opts);
+	if (!ASSERT_OK(err, "prog replace post_create_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_post_create"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 3, "total prog count");
+
+	/* Try the same attach/replace via link API. */
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 0, "prog count");
+	bind_link_fd = bpf_link_create(bind_prog_fd, cgroup_fd,
+				       BPF_LSM_CGROUP, NULL);
+	if (!ASSERT_GE(bind_link_fd, 0, "link create bind_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 4, "total prog count");
+
+	update_opts.old_prog_fd = bind_prog_fd;
+	update_opts.flags = BPF_F_REPLACE;
+
+	err = bpf_link_update(bind_link_fd, bind_prog_fd2, &update_opts);
+	if (!ASSERT_OK(err, "link update bind_prog_fd"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 4, "total prog count");
+
+	/* Attach another instance of bind program to another cgroup.
+	 * This should trigger the reuse of the trampoline shim (two
+	 * programs attaching to the same btf_id).
+	 */
+
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd2, "bpf_lsm_socket_bind"), 0, "prog count");
+	bind_link_fd2 = bpf_link_create(bind_prog_fd2, cgroup_fd2,
+					BPF_LSM_CGROUP, NULL);
+	if (!ASSERT_GE(bind_link_fd2, 0, "link create bind_prog_fd2"))
+		goto detach_cgroup;
+	ASSERT_EQ(query_prog_cnt(cgroup_fd2, "bpf_lsm_socket_bind"), 1, "prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd, NULL), 4, "total prog count");
+	ASSERT_EQ(query_prog_cnt(cgroup_fd2, NULL), 1, "total prog count");
+
+	/* AF_UNIX is prohibited. */
+
+	fd = socket(AF_UNIX, SOCK_STREAM, 0);
+	ASSERT_LT(fd, 0, "socket(AF_UNIX)");
+	close(fd);
+
+	/* AF_INET6 gets default policy (sk_priority). */
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket(SOCK_STREAM)"))
+		goto detach_cgroup;
+
+	prio = 0;
+	socklen = sizeof(prio);
+	ASSERT_GE(getsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, &socklen), 0,
+		  "getsockopt");
+	ASSERT_EQ(prio, 123, "sk_priority");
+
+	close(fd);
+
+	/* TX-only AF_PACKET is allowed. */
+
+	ASSERT_LT(socket(AF_PACKET, SOCK_RAW, htons(ETH_P_ALL)), 0,
+		  "socket(AF_PACKET, ..., ETH_P_ALL)");
+
+	fd = socket(AF_PACKET, SOCK_RAW, 0);
+	ASSERT_GE(fd, 0, "socket(AF_PACKET, ..., 0)");
+
+	/* TX-only AF_PACKET can not be rebound. */
+
+	struct sockaddr_ll sa = {
+		.sll_family = AF_PACKET,
+		.sll_protocol = htons(ETH_P_ALL),
+	};
+	ASSERT_LT(bind(fd, (struct sockaddr *)&sa, sizeof(sa)), 0,
+		  "bind(ETH_P_ALL)");
+
+	close(fd);
+
+	/* Trigger passive open. */
+
+	listen_fd = start_server(AF_INET6, SOCK_STREAM, "::1", 0, 0);
+	ASSERT_GE(listen_fd, 0, "start_server");
+	client_fd = connect_to_fd(listen_fd, 0);
+	ASSERT_GE(client_fd, 0, "connect_to_fd");
+	accepted_fd = accept(listen_fd, NULL, NULL);
+	ASSERT_GE(accepted_fd, 0, "accept");
+
+	prio = 0;
+	socklen = sizeof(prio);
+	ASSERT_GE(getsockopt(accepted_fd, SOL_SOCKET, SO_PRIORITY, &prio, &socklen), 0,
+		  "getsockopt");
+	ASSERT_EQ(prio, 234, "sk_priority");
+
+	/* These are replaced and never called. */
+	ASSERT_EQ(skel->bss->called_socket_post_create, 0, "called_create");
+	ASSERT_EQ(skel->bss->called_socket_bind, 0, "called_bind");
+
+	/* AF_INET6+SOCK_STREAM
+	 * AF_PACKET+SOCK_RAW
+	 * listen_fd
+	 * client_fd
+	 * accepted_fd
+	 */
+	ASSERT_EQ(skel->bss->called_socket_post_create2, 5, "called_create2");
+
+	/* start_server
+	 * bind(ETH_P_ALL)
+	 */
+	ASSERT_EQ(skel->bss->called_socket_bind2, 2, "called_bind2");
+	/* Single accept(). */
+	ASSERT_EQ(skel->bss->called_socket_clone, 1, "called_clone");
+
+	/* AF_UNIX+SOCK_STREAM (failed)
+	 * AF_INET6+SOCK_STREAM
+	 * AF_PACKET+SOCK_RAW (failed)
+	 * AF_PACKET+SOCK_RAW
+	 * listen_fd
+	 * client_fd
+	 * accepted_fd
+	 */
+	ASSERT_EQ(skel->bss->called_socket_alloc, 7, "called_alloc");
+
+	close(listen_fd);
+	close(client_fd);
+	close(accepted_fd);
+
+	/* Make sure other cgroup doesn't trigger the programs. */
+
+	if (!ASSERT_OK(join_cgroup("/sock_policy_empty"), "join root cgroup"))
+		goto detach_cgroup;
+
+	fd = socket(AF_INET6, SOCK_STREAM, 0);
+	if (!ASSERT_GE(fd, 0, "socket(SOCK_STREAM)"))
+		goto detach_cgroup;
+
+	prio = 0;
+	socklen = sizeof(prio);
+	ASSERT_GE(getsockopt(fd, SOL_SOCKET, SO_PRIORITY, &prio, &socklen), 0,
+		  "getsockopt");
+	ASSERT_EQ(prio, 0, "sk_priority");
+
+	close(fd);
+
+detach_cgroup:
+	ASSERT_GE(bpf_prog_detach2(post_create_prog_fd2, cgroup_fd,
+				   BPF_LSM_CGROUP), 0, "detach_create");
+	close(bind_link_fd);
+	/* Don't close bind_link_fd2, exercise cgroup release cleanup. */
+	ASSERT_GE(bpf_prog_detach2(alloc_prog_fd, cgroup_fd,
+				   BPF_LSM_CGROUP), 0, "detach_alloc");
+	ASSERT_GE(bpf_prog_detach2(clone_prog_fd, cgroup_fd,
+				   BPF_LSM_CGROUP), 0, "detach_clone");
+
+close_cgroup:
+	close(cgroup_fd);
+	close(cgroup_fd2);
+	close(cgroup_fd3);
+	lsm_cgroup__destroy(skel);
+}
+
+static void test_lsm_cgroup_nonvoid(void)
+{
+	struct lsm_cgroup_nonvoid *skel = NULL;
+
+	skel = lsm_cgroup_nonvoid__open_and_load();
+	ASSERT_NULL(skel, "open succeeds");
+	lsm_cgroup_nonvoid__destroy(skel);
+}
+
+void test_lsm_cgroup(void)
+{
+	if (test__start_subtest("functional"))
+		test_lsm_cgroup_functional();
+	if (test__start_subtest("nonvoid"))
+		test_lsm_cgroup_nonvoid();
+	btf__free(btf);
+}
diff --git a/tools/testing/selftests/bpf/prog_tests/probe_user.c b/tools/testing/selftests/bpf/prog_tests/probe_user.c
index abf890d066eb..34dbd2adc157 100644
--- a/tools/testing/selftests/bpf/prog_tests/probe_user.c
+++ b/tools/testing/selftests/bpf/prog_tests/probe_user.c
@@ -4,25 +4,35 @@
 /* TODO: corrupts other tests uses connect() */
 void serial_test_probe_user(void)
 {
-	const char *prog_name = "handle_sys_connect";
+	static const char *const prog_names[] = {
+		"handle_sys_connect",
+#if defined(__s390x__)
+		"handle_sys_socketcall",
+#endif
+	};
+	enum { prog_count = ARRAY_SIZE(prog_names) };
 	const char *obj_file = "./test_probe_user.o";
 	DECLARE_LIBBPF_OPTS(bpf_object_open_opts, opts, );
 	int err, results_map_fd, sock_fd, duration = 0;
 	struct sockaddr curr, orig, tmp;
 	struct sockaddr_in *in = (struct sockaddr_in *)&curr;
-	struct bpf_link *kprobe_link = NULL;
-	struct bpf_program *kprobe_prog;
+	struct bpf_link *kprobe_links[prog_count] = {};
+	struct bpf_program *kprobe_progs[prog_count];
 	struct bpf_object *obj;
 	static const int zero = 0;
+	size_t i;
 
 	obj = bpf_object__open_file(obj_file, &opts);
 	if (!ASSERT_OK_PTR(obj, "obj_open_file"))
 		return;
 
-	kprobe_prog = bpf_object__find_program_by_name(obj, prog_name);
-	if (CHECK(!kprobe_prog, "find_probe",
-		  "prog '%s' not found\n", prog_name))
-		goto cleanup;
+	for (i = 0; i < prog_count; i++) {
+		kprobe_progs[i] =
+			bpf_object__find_program_by_name(obj, prog_names[i]);
+		if (CHECK(!kprobe_progs[i], "find_probe",
+			  "prog '%s' not found\n", prog_names[i]))
+			goto cleanup;
+	}
 
 	err = bpf_object__load(obj);
 	if (CHECK(err, "obj_load", "err %d\n", err))
@@ -33,9 +43,11 @@ void serial_test_probe_user(void)
 		  "err %d\n", results_map_fd))
 		goto cleanup;
 
-	kprobe_link = bpf_program__attach(kprobe_prog);
-	if (!ASSERT_OK_PTR(kprobe_link, "attach_kprobe"))
-		goto cleanup;
+	for (i = 0; i < prog_count; i++) {
+		kprobe_links[i] = bpf_program__attach(kprobe_progs[i]);
+		if (!ASSERT_OK_PTR(kprobe_links[i], "attach_kprobe"))
+			goto cleanup;
+	}
 
 	memset(&curr, 0, sizeof(curr));
 	in->sin_family = AF_INET;
@@ -69,6 +81,7 @@ void serial_test_probe_user(void)
 		  inet_ntoa(in->sin_addr), ntohs(in->sin_port)))
 		goto cleanup;
 cleanup:
-	bpf_link__destroy(kprobe_link);
+	for (i = 0; i < prog_count; i++)
+		bpf_link__destroy(kprobe_links[i]);
 	bpf_object__close(obj);
 }
diff --git a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
index f4a13d9dd5c8..c197261d02e2 100644
--- a/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
+++ b/tools/testing/selftests/bpf/prog_tests/resolve_btfids.c
@@ -44,7 +44,7 @@ BTF_ID(union,   U)
 BTF_ID(func,    func)
 
 extern __u32 test_list_global[];
-BTF_ID_LIST_GLOBAL(test_list_global)
+BTF_ID_LIST_GLOBAL(test_list_global, 1)
 BTF_ID_UNUSED
 BTF_ID(typedef, S)
 BTF_ID(typedef, T)
diff --git a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
index eb5f7f5aa81a..1455911d9fcb 100644
--- a/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
+++ b/tools/testing/selftests/bpf/prog_tests/ringbuf_multi.c
@@ -50,6 +50,13 @@ void test_ringbuf_multi(void)
 	if (CHECK(!skel, "skel_open", "skeleton open failed\n"))
 		return;
 
+	/* validate ringbuf size adjustment logic */
+	ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), page_size, "rb1_size_before");
+	ASSERT_OK(bpf_map__set_max_entries(skel->maps.ringbuf1, page_size + 1), "rb1_resize");
+	ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), 2 * page_size, "rb1_size_after");
+	ASSERT_OK(bpf_map__set_max_entries(skel->maps.ringbuf1, page_size), "rb1_reset");
+	ASSERT_EQ(bpf_map__max_entries(skel->maps.ringbuf1), page_size, "rb1_size_final");
+
 	proto_fd = bpf_map_create(BPF_MAP_TYPE_RINGBUF, NULL, 0, 0, page_size, NULL);
 	if (CHECK(proto_fd < 0, "bpf_map_create", "bpf_map_create failed\n"))
 		goto cleanup;
@@ -65,6 +72,10 @@ void test_ringbuf_multi(void)
 	close(proto_fd);
 	proto_fd = -1;
 
+	/* make sure we can't resize ringbuf after object load */
+	if (!ASSERT_ERR(bpf_map__set_max_entries(skel->maps.ringbuf1, 3 * page_size), "rb1_resize_after_load"))
+		goto cleanup;
+
 	/* only trigger BPF program for current process */
 	skel->bss->pid = getpid();
 
diff --git a/tools/testing/selftests/bpf/prog_tests/send_signal.c b/tools/testing/selftests/bpf/prog_tests/send_signal.c
index d71226e34c34..d63a20fbed33 100644
--- a/tools/testing/selftests/bpf/prog_tests/send_signal.c
+++ b/tools/testing/selftests/bpf/prog_tests/send_signal.c
@@ -64,7 +64,7 @@ static void test_send_signal_common(struct perf_event_attr *attr,
 		ASSERT_EQ(read(pipe_p2c[0], buf, 1), 1, "pipe_read");
 
 		/* wait a little for signal handler */
-		for (int i = 0; i < 100000000 && !sigusr1_received; i++)
+		for (int i = 0; i < 1000000000 && !sigusr1_received; i++)
 			j /= i + j + 1;
 
 		buf[0] = sigusr1_received ? '2' : '0';
diff --git a/tools/testing/selftests/bpf/prog_tests/skeleton.c b/tools/testing/selftests/bpf/prog_tests/skeleton.c
index 180afd632f4c..99dac5292b41 100644
--- a/tools/testing/selftests/bpf/prog_tests/skeleton.c
+++ b/tools/testing/selftests/bpf/prog_tests/skeleton.c
@@ -122,6 +122,8 @@ void test_skeleton(void)
 
 	ASSERT_EQ(skel->bss->out_mostly_var, 123, "out_mostly_var");
 
+	ASSERT_EQ(bss->huge_arr[ARRAY_SIZE(bss->huge_arr) - 1], 123, "huge_arr");
+
 	elf_bytes = test_skeleton__elf_bytes(&elf_bytes_sz);
 	ASSERT_OK_PTR(elf_bytes, "elf_bytes");
 	ASSERT_GE(elf_bytes_sz, 0, "elf_bytes_sz");
diff --git a/tools/testing/selftests/bpf/prog_tests/sock_fields.c b/tools/testing/selftests/bpf/prog_tests/sock_fields.c
index 9d211b5c22c4..7d23166c77af 100644
--- a/tools/testing/selftests/bpf/prog_tests/sock_fields.c
+++ b/tools/testing/selftests/bpf/prog_tests/sock_fields.c
@@ -394,7 +394,6 @@ void serial_test_sock_fields(void)
 	test();
 
 done:
-	test_sock_fields__detach(skel);
 	test_sock_fields__destroy(skel);
 	if (child_cg_fd >= 0)
 		close(child_cg_fd);
diff --git a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
index 958dae769c52..cb6a53b3e023 100644
--- a/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
+++ b/tools/testing/selftests/bpf/prog_tests/tc_redirect.c
@@ -646,7 +646,7 @@ static void test_tcp_clear_dtime(struct test_tc_dtime *skel)
 	__u32 *errs = skel->bss->errs[t];
 
 	skel->bss->test = t;
-	test_inet_dtime(AF_INET6, SOCK_STREAM, IP6_DST, 0);
+	test_inet_dtime(AF_INET6, SOCK_STREAM, IP6_DST, 50000 + t);
 
 	ASSERT_EQ(dtimes[INGRESS_FWDNS_P100], 0,
 		  dtime_cnt_str(t, INGRESS_FWDNS_P100));
@@ -683,7 +683,7 @@ static void test_tcp_dtime(struct test_tc_dtime *skel, int family, bool bpf_fwd)
 	errs = skel->bss->errs[t];
 
 	skel->bss->test = t;
-	test_inet_dtime(family, SOCK_STREAM, addr, 0);
+	test_inet_dtime(family, SOCK_STREAM, addr, 50000 + t);
 
 	/* fwdns_prio100 prog does not read delivery_time_type, so
 	 * kernel puts the (rcv) timetamp in __sk_buff->tstamp
@@ -715,13 +715,13 @@ static void test_udp_dtime(struct test_tc_dtime *skel, int family, bool bpf_fwd)
 	errs = skel->bss->errs[t];
 
 	skel->bss->test = t;
-	test_inet_dtime(family, SOCK_DGRAM, addr, 0);
+	test_inet_dtime(family, SOCK_DGRAM, addr, 50000 + t);
 
 	ASSERT_EQ(dtimes[INGRESS_FWDNS_P100], 0,
 		  dtime_cnt_str(t, INGRESS_FWDNS_P100));
 	/* non mono delivery time is not forwarded */
 	ASSERT_EQ(dtimes[INGRESS_FWDNS_P101], 0,
-		  dtime_cnt_str(t, INGRESS_FWDNS_P100));
+		  dtime_cnt_str(t, INGRESS_FWDNS_P101));
 	for (i = EGRESS_FWDNS_P100; i < SET_DTIME; i++)
 		ASSERT_GT(dtimes[i], 0, dtime_cnt_str(t, i));
 
diff --git a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
index 3bba4a2a0530..eea274110267 100644
--- a/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
+++ b/tools/testing/selftests/bpf/prog_tests/test_tunnel.c
@@ -82,6 +82,7 @@
 
 #define MAC_TUNL_DEV0 "52:54:00:d9:01:00"
 #define MAC_TUNL_DEV1 "52:54:00:d9:02:00"
+#define MAC_VETH1 "52:54:00:d9:03:00"
 
 #define VXLAN_TUNL_DEV0 "vxlan00"
 #define VXLAN_TUNL_DEV1 "vxlan11"
@@ -108,10 +109,9 @@
 static int config_device(void)
 {
 	SYS("ip netns add at_ns0");
-	SYS("ip link add veth0 type veth peer name veth1");
+	SYS("ip link add veth0 address " MAC_VETH1 " type veth peer name veth1");
 	SYS("ip link set veth0 netns at_ns0");
 	SYS("ip addr add " IP4_ADDR1_VETH1 "/24 dev veth1");
-	SYS("ip addr add " IP4_ADDR2_VETH1 "/24 dev veth1");
 	SYS("ip link set dev veth1 up mtu 1500");
 	SYS("ip netns exec at_ns0 ip addr add " IP4_ADDR_VETH0 "/24 dev veth0");
 	SYS("ip netns exec at_ns0 ip link set dev veth0 up mtu 1500");
@@ -140,6 +140,8 @@ static int add_vxlan_tunnel(void)
 	    VXLAN_TUNL_DEV0, IP4_ADDR_TUNL_DEV0);
 	SYS("ip netns exec at_ns0 ip neigh add %s lladdr %s dev %s",
 	    IP4_ADDR_TUNL_DEV1, MAC_TUNL_DEV1, VXLAN_TUNL_DEV0);
+	SYS("ip netns exec at_ns0 ip neigh add %s lladdr %s dev veth0",
+	    IP4_ADDR2_VETH1, MAC_VETH1);
 
 	/* root namespace */
 	SYS("ip link add dev %s type vxlan external gbp dstport 4789",
@@ -277,6 +279,17 @@ static void test_vxlan_tunnel(void)
 	if (attach_tc_prog(&tc_hook, get_src_prog_fd, set_src_prog_fd))
 		goto done;
 
+	/* load and attach bpf prog to veth dev tc hook point */
+	ifindex = if_nametoindex("veth1");
+	if (!ASSERT_NEQ(ifindex, 0, "veth1 ifindex"))
+		goto done;
+	tc_hook.ifindex = ifindex;
+	set_dst_prog_fd = bpf_program__fd(skel->progs.veth_set_outer_dst);
+	if (!ASSERT_GE(set_dst_prog_fd, 0, "bpf_program__fd"))
+		goto done;
+	if (attach_tc_prog(&tc_hook, set_dst_prog_fd, -1))
+		goto done;
+
 	/* load and attach prog set_md to tunnel dev tc hook point at_ns0 */
 	nstoken = open_netns("at_ns0");
 	if (!ASSERT_OK_PTR(nstoken, "setns src"))
diff --git a/tools/testing/selftests/bpf/prog_tests/usdt.c b/tools/testing/selftests/bpf/prog_tests/usdt.c
index 5f733d50b0d7..9ad9da0f215e 100644
--- a/tools/testing/selftests/bpf/prog_tests/usdt.c
+++ b/tools/testing/selftests/bpf/prog_tests/usdt.c
@@ -12,7 +12,7 @@ int lets_test_this(int);
 
 static volatile int idx = 2;
 static volatile __u64 bla = 0xFEDCBA9876543210ULL;
-static volatile short nums[] = {-1, -2, -3, };
+static volatile short nums[] = {-1, -2, -3, -4};
 
 static volatile struct {
 	int x;
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
new file mode 100644
index 000000000000..874a846e298c
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xdp_synproxy.c
@@ -0,0 +1,183 @@
+// SPDX-License-Identifier: LGPL-2.1 OR BSD-2-Clause
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#define _GNU_SOURCE
+#include <test_progs.h>
+#include <network_helpers.h>
+#include <ctype.h>
+
+#define CMD_OUT_BUF_SIZE 1023
+
+#define SYS(cmd) ({ \
+	if (!ASSERT_OK(system(cmd), (cmd))) \
+		goto out; \
+})
+
+#define SYS_OUT(cmd, ...) ({ \
+	char buf[1024]; \
+	snprintf(buf, sizeof(buf), (cmd), ##__VA_ARGS__); \
+	FILE *f = popen(buf, "r"); \
+	if (!ASSERT_OK_PTR(f, buf)) \
+		goto out; \
+	f; \
+})
+
+/* out must be at least `size * 4 + 1` bytes long */
+static void escape_str(char *out, const char *in, size_t size)
+{
+	static const char *hex = "0123456789ABCDEF";
+	size_t i;
+
+	for (i = 0; i < size; i++) {
+		if (isprint(in[i]) && in[i] != '\\' && in[i] != '\'') {
+			*out++ = in[i];
+		} else {
+			*out++ = '\\';
+			*out++ = 'x';
+			*out++ = hex[(in[i] >> 4) & 0xf];
+			*out++ = hex[in[i] & 0xf];
+		}
+	}
+	*out++ = '\0';
+}
+
+static bool expect_str(char *buf, size_t size, const char *str, const char *name)
+{
+	static char escbuf_expected[CMD_OUT_BUF_SIZE * 4];
+	static char escbuf_actual[CMD_OUT_BUF_SIZE * 4];
+	static int duration = 0;
+	bool ok;
+
+	ok = size == strlen(str) && !memcmp(buf, str, size);
+
+	if (!ok) {
+		escape_str(escbuf_expected, str, strlen(str));
+		escape_str(escbuf_actual, buf, size);
+	}
+	CHECK(!ok, name, "unexpected %s: actual '%s' != expected '%s'\n",
+	      name, escbuf_actual, escbuf_expected);
+
+	return ok;
+}
+
+static void test_synproxy(bool xdp)
+{
+	int server_fd = -1, client_fd = -1, accept_fd = -1;
+	char *prog_id = NULL, *prog_id_end;
+	struct nstoken *ns = NULL;
+	FILE *ctrl_file = NULL;
+	char buf[CMD_OUT_BUF_SIZE];
+	size_t size;
+
+	SYS("ip netns add synproxy");
+
+	SYS("ip link add tmp0 type veth peer name tmp1");
+	SYS("ip link set tmp1 netns synproxy");
+	SYS("ip link set tmp0 up");
+	SYS("ip addr replace 198.18.0.1/24 dev tmp0");
+
+	/* When checksum offload is enabled, the XDP program sees wrong
+	 * checksums and drops packets.
+	 */
+	SYS("ethtool -K tmp0 tx off");
+	if (xdp)
+		/* Workaround required for veth. */
+		SYS("ip link set tmp0 xdp object xdp_dummy.o section xdp 2> /dev/null");
+
+	ns = open_netns("synproxy");
+	if (!ASSERT_OK_PTR(ns, "setns"))
+		goto out;
+
+	SYS("ip link set lo up");
+	SYS("ip link set tmp1 up");
+	SYS("ip addr replace 198.18.0.2/24 dev tmp1");
+	SYS("sysctl -w net.ipv4.tcp_syncookies=2");
+	SYS("sysctl -w net.ipv4.tcp_timestamps=1");
+	SYS("sysctl -w net.netfilter.nf_conntrack_tcp_loose=0");
+	SYS("iptables -t raw -I PREROUTING \
+	    -i tmp1 -p tcp -m tcp --syn --dport 8080 -j CT --notrack");
+	SYS("iptables -t filter -A INPUT \
+	    -i tmp1 -p tcp -m tcp --dport 8080 -m state --state INVALID,UNTRACKED \
+	    -j SYNPROXY --sack-perm --timestamp --wscale 7 --mss 1460");
+	SYS("iptables -t filter -A INPUT \
+	    -i tmp1 -m state --state INVALID -j DROP");
+
+	ctrl_file = SYS_OUT("./xdp_synproxy --iface tmp1 --ports 8080 \
+			    --single --mss4 1460 --mss6 1440 \
+			    --wscale 7 --ttl 64%s", xdp ? "" : " --tc");
+	size = fread(buf, 1, sizeof(buf), ctrl_file);
+	pclose(ctrl_file);
+	if (!expect_str(buf, size, "Total SYNACKs generated: 0\n",
+			"initial SYNACKs"))
+		goto out;
+
+	if (!xdp) {
+		ctrl_file = SYS_OUT("tc filter show dev tmp1 ingress");
+		size = fread(buf, 1, sizeof(buf), ctrl_file);
+		pclose(ctrl_file);
+		prog_id = memmem(buf, size, " id ", 4);
+		if (!ASSERT_OK_PTR(prog_id, "find prog id"))
+			goto out;
+		prog_id += 4;
+		if (!ASSERT_LT(prog_id, buf + size, "find prog id begin"))
+			goto out;
+		prog_id_end = prog_id;
+		while (prog_id_end < buf + size && *prog_id_end >= '0' &&
+		       *prog_id_end <= '9')
+			prog_id_end++;
+		if (!ASSERT_LT(prog_id_end, buf + size, "find prog id end"))
+			goto out;
+		*prog_id_end = '\0';
+	}
+
+	server_fd = start_server(AF_INET, SOCK_STREAM, "198.18.0.2", 8080, 0);
+	if (!ASSERT_GE(server_fd, 0, "start_server"))
+		goto out;
+
+	close_netns(ns);
+	ns = NULL;
+
+	client_fd = connect_to_fd(server_fd, 10000);
+	if (!ASSERT_GE(client_fd, 0, "connect_to_fd"))
+		goto out;
+
+	accept_fd = accept(server_fd, NULL, NULL);
+	if (!ASSERT_GE(accept_fd, 0, "accept"))
+		goto out;
+
+	ns = open_netns("synproxy");
+	if (!ASSERT_OK_PTR(ns, "setns"))
+		goto out;
+
+	if (xdp)
+		ctrl_file = SYS_OUT("./xdp_synproxy --iface tmp1 --single");
+	else
+		ctrl_file = SYS_OUT("./xdp_synproxy --prog %s --single",
+				    prog_id);
+	size = fread(buf, 1, sizeof(buf), ctrl_file);
+	pclose(ctrl_file);
+	if (!expect_str(buf, size, "Total SYNACKs generated: 1\n",
+			"SYNACKs after connection"))
+		goto out;
+
+out:
+	if (accept_fd >= 0)
+		close(accept_fd);
+	if (client_fd >= 0)
+		close(client_fd);
+	if (server_fd >= 0)
+		close(server_fd);
+	if (ns)
+		close_netns(ns);
+
+	system("ip link del tmp0");
+	system("ip netns del synproxy");
+}
+
+void test_xdp_synproxy(void)
+{
+	if (test__start_subtest("xdp"))
+		test_synproxy(true);
+	if (test__start_subtest("tc"))
+		test_synproxy(false);
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_hashmap_full_update_bench.c b/tools/testing/selftests/bpf/progs/bpf_hashmap_full_update_bench.c
new file mode 100644
index 000000000000..56957557e3e1
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_hashmap_full_update_bench.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Bytedance */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+#define MAX_ENTRIES 1000
+
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__type(key, u32);
+	__type(value, u64);
+	__uint(max_entries, MAX_ENTRIES);
+} hash_map_bench SEC(".maps");
+
+u64 __attribute__((__aligned__(256))) percpu_time[256];
+u64 nr_loops;
+
+static int loop_update_callback(__u32 index, u32 *key)
+{
+	u64 init_val = 1;
+
+	bpf_map_update_elem(&hash_map_bench, key, &init_val, BPF_ANY);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int benchmark(void *ctx)
+{
+	u32 cpu = bpf_get_smp_processor_id();
+	u32 key = cpu + MAX_ENTRIES;
+	u64 start_time = bpf_ktime_get_ns();
+
+	bpf_loop(nr_loops, loop_update_callback, &key, 0);
+	percpu_time[cpu & 255] = bpf_ktime_get_ns() - start_time;
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter.h b/tools/testing/selftests/bpf/progs/bpf_iter.h
index 97ec8bc76ae6..e9846606690d 100644
--- a/tools/testing/selftests/bpf/progs/bpf_iter.h
+++ b/tools/testing/selftests/bpf/progs/bpf_iter.h
@@ -22,6 +22,7 @@
 #define BTF_F_NONAME BTF_F_NONAME___not_used
 #define BTF_F_PTR_RAW BTF_F_PTR_RAW___not_used
 #define BTF_F_ZERO BTF_F_ZERO___not_used
+#define bpf_iter__ksym bpf_iter__ksym___not_used
 #include "vmlinux.h"
 #undef bpf_iter_meta
 #undef bpf_iter__bpf_map
@@ -44,6 +45,7 @@
 #undef BTF_F_NONAME
 #undef BTF_F_PTR_RAW
 #undef BTF_F_ZERO
+#undef bpf_iter__ksym
 
 struct bpf_iter_meta {
 	struct seq_file *seq;
@@ -151,3 +153,8 @@ enum {
 	BTF_F_PTR_RAW	=	(1ULL << 2),
 	BTF_F_ZERO	=	(1ULL << 3),
 };
+
+struct bpf_iter__ksym {
+	struct bpf_iter_meta *meta;
+	struct kallsym_iter *ksym;
+};
diff --git a/tools/testing/selftests/bpf/progs/bpf_iter_ksym.c b/tools/testing/selftests/bpf/progs/bpf_iter_ksym.c
new file mode 100644
index 000000000000..285c008cbf9c
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/bpf_iter_ksym.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022, Oracle and/or its affiliates. */
+#include "bpf_iter.h"
+#include <bpf/bpf_helpers.h>
+
+char _license[] SEC("license") = "GPL";
+
+unsigned long last_sym_value = 0;
+
+static inline char tolower(char c)
+{
+	if (c >= 'A' && c <= 'Z')
+		c += ('a' - 'A');
+	return c;
+}
+
+static inline char toupper(char c)
+{
+	if (c >= 'a' && c <= 'z')
+		c -= ('a' - 'A');
+	return c;
+}
+
+/* Dump symbols with max size; the latter is calculated by caching symbol N value
+ * and when iterating on symbol N+1, we can print max size of symbol N via
+ * address of N+1 - address of N.
+ */
+SEC("iter/ksym")
+int dump_ksym(struct bpf_iter__ksym *ctx)
+{
+	struct seq_file *seq = ctx->meta->seq;
+	struct kallsym_iter *iter = ctx->ksym;
+	__u32 seq_num = ctx->meta->seq_num;
+	unsigned long value;
+	char type;
+	int ret;
+
+	if (!iter)
+		return 0;
+
+	if (seq_num == 0) {
+		BPF_SEQ_PRINTF(seq, "ADDR TYPE NAME MODULE_NAME KIND MAX_SIZE\n");
+		return 0;
+	}
+	if (last_sym_value)
+		BPF_SEQ_PRINTF(seq, "0x%x\n", iter->value - last_sym_value);
+	else
+		BPF_SEQ_PRINTF(seq, "\n");
+
+	value = iter->show_value ? iter->value : 0;
+
+	last_sym_value = value;
+
+	type = iter->type;
+
+	if (iter->module_name[0]) {
+		type = iter->exported ? toupper(type) : tolower(type);
+		BPF_SEQ_PRINTF(seq, "0x%llx %c %s [ %s ] ",
+			       value, type, iter->name, iter->module_name);
+	} else {
+		BPF_SEQ_PRINTF(seq, "0x%llx %c %s ", value, type, iter->name);
+	}
+	if (!iter->pos_arch_end || iter->pos_arch_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "CORE ");
+	else if (!iter->pos_mod_end || iter->pos_mod_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "MOD ");
+	else if (!iter->pos_ftrace_mod_end || iter->pos_ftrace_mod_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "FTRACE_MOD ");
+	else if (!iter->pos_bpf_end || iter->pos_bpf_end > iter->pos)
+		BPF_SEQ_PRINTF(seq, "BPF ");
+	else
+		BPF_SEQ_PRINTF(seq, "KPROBE ");
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_loop.c b/tools/testing/selftests/bpf/progs/bpf_loop.c
index e08565282759..de1fc82d2710 100644
--- a/tools/testing/selftests/bpf/progs/bpf_loop.c
+++ b/tools/testing/selftests/bpf/progs/bpf_loop.c
@@ -11,11 +11,19 @@ struct callback_ctx {
 	int output;
 };
 
+struct {
+	__uint(type, BPF_MAP_TYPE_HASH);
+	__uint(max_entries, 32);
+	__type(key, int);
+	__type(value, int);
+} map1 SEC(".maps");
+
 /* These should be set by the user program */
 u32 nested_callback_nr_loops;
 u32 stop_index = -1;
 u32 nr_loops;
 int pid;
+int callback_selector;
 
 /* Making these global variables so that the userspace program
  * can verify the output through the skeleton
@@ -111,3 +119,109 @@ int prog_nested_calls(void *ctx)
 
 	return 0;
 }
+
+static int callback_set_f0(int i, void *ctx)
+{
+	g_output = 0xF0;
+	return 0;
+}
+
+static int callback_set_0f(int i, void *ctx)
+{
+	g_output = 0x0F;
+	return 0;
+}
+
+/*
+ * non-constant callback is a corner case for bpf_loop inline logic
+ */
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int prog_non_constant_callback(void *ctx)
+{
+	struct callback_ctx data = {};
+
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	int (*callback)(int i, void *ctx);
+
+	g_output = 0;
+
+	if (callback_selector == 0x0F)
+		callback = callback_set_0f;
+	else
+		callback = callback_set_f0;
+
+	bpf_loop(1, callback, NULL, 0);
+
+	return 0;
+}
+
+static int stack_check_inner_callback(void *ctx)
+{
+	return 0;
+}
+
+static int map1_lookup_elem(int key)
+{
+	int *val = bpf_map_lookup_elem(&map1, &key);
+
+	return val ? *val : -1;
+}
+
+static void map1_update_elem(int key, int val)
+{
+	bpf_map_update_elem(&map1, &key, &val, BPF_ANY);
+}
+
+static int stack_check_outer_callback(void *ctx)
+{
+	int a = map1_lookup_elem(1);
+	int b = map1_lookup_elem(2);
+	int c = map1_lookup_elem(3);
+	int d = map1_lookup_elem(4);
+	int e = map1_lookup_elem(5);
+	int f = map1_lookup_elem(6);
+
+	bpf_loop(1, stack_check_inner_callback, NULL, 0);
+
+	map1_update_elem(1, a + 1);
+	map1_update_elem(2, b + 1);
+	map1_update_elem(3, c + 1);
+	map1_update_elem(4, d + 1);
+	map1_update_elem(5, e + 1);
+	map1_update_elem(6, f + 1);
+
+	return 0;
+}
+
+/* Some of the local variables in stack_check and
+ * stack_check_outer_callback would be allocated on stack by
+ * compiler. This test should verify that stack content for these
+ * variables is preserved between calls to bpf_loop (might be an issue
+ * if loop inlining allocates stack slots incorrectly).
+ */
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int stack_check(void *ctx)
+{
+	if (bpf_get_current_pid_tgid() >> 32 != pid)
+		return 0;
+
+	int a = map1_lookup_elem(7);
+	int b = map1_lookup_elem(8);
+	int c = map1_lookup_elem(9);
+	int d = map1_lookup_elem(10);
+	int e = map1_lookup_elem(11);
+	int f = map1_lookup_elem(12);
+
+	bpf_loop(1, stack_check_outer_callback, NULL, 0);
+
+	map1_update_elem(7,  a + 1);
+	map1_update_elem(8, b + 1);
+	map1_update_elem(9, c + 1);
+	map1_update_elem(10, d + 1);
+	map1_update_elem(11, e + 1);
+	map1_update_elem(12, f + 1);
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c b/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
index 05838ed9b89c..e1e11897e99b 100644
--- a/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
+++ b/tools/testing/selftests/bpf/progs/bpf_syscall_macro.c
@@ -64,9 +64,9 @@ int BPF_KPROBE(handle_sys_prctl)
 	return 0;
 }
 
-SEC("kprobe/" SYS_PREFIX "sys_prctl")
-int BPF_KPROBE_SYSCALL(prctl_enter, int option, unsigned long arg2,
-		       unsigned long arg3, unsigned long arg4, unsigned long arg5)
+SEC("ksyscall/prctl")
+int BPF_KSYSCALL(prctl_enter, int option, unsigned long arg2,
+		 unsigned long arg3, unsigned long arg4, unsigned long arg5)
 {
 	pid_t pid = bpf_get_current_pid_tgid() >> 32;
 
diff --git a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
index 1c1289ba5fc5..98dd2c4815f0 100644
--- a/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
+++ b/tools/testing/selftests/bpf/progs/bpf_tracing_net.h
@@ -8,6 +8,7 @@
 #define SOL_SOCKET		1
 #define SO_SNDBUF		7
 #define __SO_ACCEPTCON		(1 << 16)
+#define SO_PRIORITY		12
 
 #define SOL_TCP			6
 #define TCP_CONGESTION		13
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
new file mode 100644
index 000000000000..888e79db6a77
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
new file mode 100644
index 000000000000..194749130d87
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___diff.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___diff x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
new file mode 100644
index 000000000000..3d732d4193e4
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___err_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___err_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
new file mode 100644
index 000000000000..17cf5d6a848d
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_enum64val___val3_missing.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_enum64val___val3_missing x) {}
diff --git a/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff.c b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff.c
new file mode 100644
index 000000000000..57ae2c258928
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/btf__core_reloc_type_based___diff.c
@@ -0,0 +1,3 @@
+#include "core_reloc_types.h"
+
+void f(struct core_reloc_type_based___diff x) {}
diff --git a/tools/testing/selftests/bpf/progs/core_reloc_types.h b/tools/testing/selftests/bpf/progs/core_reloc_types.h
index f9dc9766546e..fd8e1b4c6762 100644
--- a/tools/testing/selftests/bpf/progs/core_reloc_types.h
+++ b/tools/testing/selftests/bpf/progs/core_reloc_types.h
@@ -13,6 +13,7 @@ struct core_reloc_kernel_output {
 	int valid[10];
 	char comm[sizeof("test_progs")];
 	int comm_len;
+	bool local_task_struct_matches;
 };
 
 /*
@@ -860,10 +861,11 @@ struct core_reloc_size___err_ambiguous2 {
 };
 
 /*
- * TYPE EXISTENCE & SIZE
+ * TYPE EXISTENCE, MATCH & SIZE
  */
 struct core_reloc_type_based_output {
 	bool struct_exists;
+	bool complex_struct_exists;
 	bool union_exists;
 	bool enum_exists;
 	bool typedef_named_struct_exists;
@@ -872,9 +874,24 @@ struct core_reloc_type_based_output {
 	bool typedef_int_exists;
 	bool typedef_enum_exists;
 	bool typedef_void_ptr_exists;
+	bool typedef_restrict_ptr_exists;
 	bool typedef_func_proto_exists;
 	bool typedef_arr_exists;
 
+	bool struct_matches;
+	bool complex_struct_matches;
+	bool union_matches;
+	bool enum_matches;
+	bool typedef_named_struct_matches;
+	bool typedef_anon_struct_matches;
+	bool typedef_struct_ptr_matches;
+	bool typedef_int_matches;
+	bool typedef_enum_matches;
+	bool typedef_void_ptr_matches;
+	bool typedef_restrict_ptr_matches;
+	bool typedef_func_proto_matches;
+	bool typedef_arr_matches;
+
 	int struct_sz;
 	int union_sz;
 	int enum_sz;
@@ -892,6 +909,14 @@ struct a_struct {
 	int x;
 };
 
+struct a_complex_struct {
+	union {
+		struct a_struct * restrict a;
+		void *b;
+	} x;
+	volatile long y;
+};
+
 union a_union {
 	int y;
 	int z;
@@ -916,6 +941,7 @@ typedef int int_typedef;
 typedef enum { TYPEDEF_ENUM_VAL1, TYPEDEF_ENUM_VAL2 } enum_typedef;
 
 typedef void *void_ptr_typedef;
+typedef int *restrict restrict_ptr_typedef;
 
 typedef int (*func_proto_typedef)(long);
 
@@ -923,22 +949,86 @@ typedef char arr_typedef[20];
 
 struct core_reloc_type_based {
 	struct a_struct f1;
-	union a_union f2;
-	enum an_enum f3;
-	named_struct_typedef f4;
-	anon_struct_typedef f5;
-	struct_ptr_typedef f6;
-	int_typedef f7;
-	enum_typedef f8;
-	void_ptr_typedef f9;
-	func_proto_typedef f10;
-	arr_typedef f11;
+	struct a_complex_struct f2;
+	union a_union f3;
+	enum an_enum f4;
+	named_struct_typedef f5;
+	anon_struct_typedef f6;
+	struct_ptr_typedef f7;
+	int_typedef f8;
+	enum_typedef f9;
+	void_ptr_typedef f10;
+	restrict_ptr_typedef f11;
+	func_proto_typedef f12;
+	arr_typedef f13;
 };
 
 /* no types in target */
 struct core_reloc_type_based___all_missing {
 };
 
+/* different member orders, enum variant values, signedness, etc */
+struct a_struct___diff {
+	int x;
+	int a;
+};
+
+struct a_struct___forward;
+
+struct a_complex_struct___diff {
+	union {
+		struct a_struct___forward *a;
+		void *b;
+	} x;
+	volatile long y;
+};
+
+union a_union___diff {
+	int z;
+	int y;
+};
+
+typedef struct a_struct___diff named_struct_typedef___diff;
+
+typedef struct { int z, x, y; } anon_struct_typedef___diff;
+
+typedef struct {
+	int c;
+	int b;
+	int a;
+} *struct_ptr_typedef___diff;
+
+enum an_enum___diff {
+	AN_ENUM_VAL2___diff = 0,
+	AN_ENUM_VAL1___diff = 42,
+	AN_ENUM_VAL3___diff = 1,
+};
+
+typedef unsigned int int_typedef___diff;
+
+typedef enum { TYPEDEF_ENUM_VAL2___diff, TYPEDEF_ENUM_VAL1___diff = 50 } enum_typedef___diff;
+
+typedef const void *void_ptr_typedef___diff;
+
+typedef int_typedef___diff (*func_proto_typedef___diff)(long);
+
+typedef char arr_typedef___diff[3];
+
+struct core_reloc_type_based___diff {
+	struct a_struct___diff f1;
+	struct a_complex_struct___diff f2;
+	union a_union___diff f3;
+	enum an_enum___diff f4;
+	named_struct_typedef___diff f5;
+	anon_struct_typedef___diff f6;
+	struct_ptr_typedef___diff f7;
+	int_typedef___diff f8;
+	enum_typedef___diff f9;
+	void_ptr_typedef___diff f10;
+	func_proto_typedef___diff f11;
+	arr_typedef___diff f12;
+};
+
 /* different type sizes, extra modifiers, anon vs named enums, etc */
 struct a_struct___diff_sz {
 	long x;
@@ -1117,6 +1207,20 @@ struct core_reloc_enumval_output {
 	int anon_val2;
 };
 
+struct core_reloc_enum64val_output {
+	bool unsigned_val1_exists;
+	bool unsigned_val2_exists;
+	bool unsigned_val3_exists;
+	bool signed_val1_exists;
+	bool signed_val2_exists;
+	bool signed_val3_exists;
+
+	long unsigned_val1;
+	long unsigned_val2;
+	long signed_val1;
+	long signed_val2;
+};
+
 enum named_enum {
 	NAMED_ENUM_VAL1 = 1,
 	NAMED_ENUM_VAL2 = 2,
@@ -1134,6 +1238,23 @@ struct core_reloc_enumval {
 	anon_enum f2;
 };
 
+enum named_unsigned_enum64 {
+	UNSIGNED_ENUM64_VAL1 = 0x1ffffffffULL,
+	UNSIGNED_ENUM64_VAL2 = 0x2,
+	UNSIGNED_ENUM64_VAL3 = 0x3ffffffffULL,
+};
+
+enum named_signed_enum64 {
+	SIGNED_ENUM64_VAL1 = 0x1ffffffffLL,
+	SIGNED_ENUM64_VAL2 = -2,
+	SIGNED_ENUM64_VAL3 = 0x3ffffffffLL,
+};
+
+struct core_reloc_enum64val {
+	enum named_unsigned_enum64 f1;
+	enum named_signed_enum64 f2;
+};
+
 /* differing enumerator values */
 enum named_enum___diff {
 	NAMED_ENUM_VAL1___diff = 101,
@@ -1152,6 +1273,23 @@ struct core_reloc_enumval___diff {
 	anon_enum___diff f2;
 };
 
+enum named_unsigned_enum64___diff {
+	UNSIGNED_ENUM64_VAL1___diff = 0x101ffffffffULL,
+	UNSIGNED_ENUM64_VAL2___diff = 0x202ffffffffULL,
+	UNSIGNED_ENUM64_VAL3___diff = 0x303ffffffffULL,
+};
+
+enum named_signed_enum64___diff {
+	SIGNED_ENUM64_VAL1___diff = -101,
+	SIGNED_ENUM64_VAL2___diff = -202,
+	SIGNED_ENUM64_VAL3___diff = -303,
+};
+
+struct core_reloc_enum64val___diff {
+	enum named_unsigned_enum64___diff f1;
+	enum named_signed_enum64___diff f2;
+};
+
 /* missing (optional) third enum value */
 enum named_enum___val3_missing {
 	NAMED_ENUM_VAL1___val3_missing = 111,
@@ -1168,6 +1306,21 @@ struct core_reloc_enumval___val3_missing {
 	anon_enum___val3_missing f2;
 };
 
+enum named_unsigned_enum64___val3_missing {
+	UNSIGNED_ENUM64_VAL1___val3_missing = 0x111ffffffffULL,
+	UNSIGNED_ENUM64_VAL2___val3_missing = 0x222,
+};
+
+enum named_signed_enum64___val3_missing {
+	SIGNED_ENUM64_VAL1___val3_missing = 0x111ffffffffLL,
+	SIGNED_ENUM64_VAL2___val3_missing = -222,
+};
+
+struct core_reloc_enum64val___val3_missing {
+	enum named_unsigned_enum64___val3_missing f1;
+	enum named_signed_enum64___val3_missing f2;
+};
+
 /* missing (mandatory) second enum value, should fail */
 enum named_enum___err_missing {
 	NAMED_ENUM_VAL1___err_missing = 1,
@@ -1183,3 +1336,18 @@ struct core_reloc_enumval___err_missing {
 	enum named_enum___err_missing f1;
 	anon_enum___err_missing f2;
 };
+
+enum named_unsigned_enum64___err_missing {
+	UNSIGNED_ENUM64_VAL1___err_missing = 0x1ffffffffULL,
+	UNSIGNED_ENUM64_VAL3___err_missing = 0x3ffffffffULL,
+};
+
+enum named_signed_enum64___err_missing {
+	SIGNED_ENUM64_VAL1___err_missing = 0x1ffffffffLL,
+	SIGNED_ENUM64_VAL3___err_missing = -3,
+};
+
+struct core_reloc_enum64val___err_missing {
+	enum named_unsigned_enum64___err_missing f1;
+	enum named_signed_enum64___err_missing f2;
+};
diff --git a/tools/testing/selftests/bpf/progs/local_storage_bench.c b/tools/testing/selftests/bpf/progs/local_storage_bench.c
new file mode 100644
index 000000000000..2c3234c5b73a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_storage_bench.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+#define HASHMAP_SZ 4194304
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+		__uint(map_flags, BPF_F_NO_PREALLOC);
+		__type(key, int);
+		__type(value, int);
+	});
+} array_of_local_storage_maps SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
+	__uint(max_entries, 1000);
+	__type(key, int);
+	__type(value, int);
+	__array(values, struct {
+		__uint(type, BPF_MAP_TYPE_HASH);
+		__uint(max_entries, HASHMAP_SZ);
+		__type(key, int);
+		__type(value, int);
+	});
+} array_of_hash_maps SEC(".maps");
+
+long important_hits;
+long hits;
+
+/* set from user-space */
+const volatile unsigned int use_hashmap;
+const volatile unsigned int hashmap_num_keys;
+const volatile unsigned int num_maps;
+const volatile unsigned int interleave;
+
+struct loop_ctx {
+	struct task_struct *task;
+	long loop_hits;
+	long loop_important_hits;
+};
+
+static int do_lookup(unsigned int elem, struct loop_ctx *lctx)
+{
+	void *map, *inner_map;
+	int idx = 0;
+
+	if (use_hashmap)
+		map = &array_of_hash_maps;
+	else
+		map = &array_of_local_storage_maps;
+
+	inner_map = bpf_map_lookup_elem(map, &elem);
+	if (!inner_map)
+		return -1;
+
+	if (use_hashmap) {
+		idx = bpf_get_prandom_u32() % hashmap_num_keys;
+		bpf_map_lookup_elem(inner_map, &idx);
+	} else {
+		bpf_task_storage_get(inner_map, lctx->task, &idx,
+				     BPF_LOCAL_STORAGE_GET_F_CREATE);
+	}
+
+	lctx->loop_hits++;
+	if (!elem)
+		lctx->loop_important_hits++;
+	return 0;
+}
+
+static long loop(u32 index, void *ctx)
+{
+	struct loop_ctx *lctx = (struct loop_ctx *)ctx;
+	unsigned int map_idx = index % num_maps;
+
+	do_lookup(map_idx, lctx);
+	if (interleave && map_idx % 3 == 0)
+		do_lookup(0, lctx);
+	return 0;
+}
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int get_local(void *ctx)
+{
+	struct loop_ctx lctx;
+
+	lctx.task = bpf_get_current_task_btf();
+	lctx.loop_hits = 0;
+	lctx.loop_important_hits = 0;
+	bpf_loop(10000, &loop, &lctx, 0);
+	__sync_add_and_fetch(&hits, lctx.loop_hits);
+	__sync_add_and_fetch(&important_hits, lctx.loop_important_hits);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/local_storage_rcu_tasks_trace_bench.c b/tools/testing/selftests/bpf/progs/local_storage_rcu_tasks_trace_bench.c
new file mode 100644
index 000000000000..03bf69f49075
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/local_storage_rcu_tasks_trace_bench.c
@@ -0,0 +1,67 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include "bpf_misc.h"
+
+struct {
+	__uint(type, BPF_MAP_TYPE_TASK_STORAGE);
+	__uint(map_flags, BPF_F_NO_PREALLOC);
+	__type(key, int);
+	__type(value, int);
+} task_storage SEC(".maps");
+
+long hits;
+long gp_hits;
+long gp_times;
+long current_gp_start;
+long unexpected;
+bool postgp_seen;
+
+SEC("fentry/" SYS_PREFIX "sys_getpgid")
+int get_local(void *ctx)
+{
+	struct task_struct *task;
+	int idx;
+	int *s;
+
+	idx = 0;
+	task = bpf_get_current_task_btf();
+	s = bpf_task_storage_get(&task_storage, task, &idx,
+				 BPF_LOCAL_STORAGE_GET_F_CREATE);
+	if (!s)
+		return 0;
+
+	*s = 3;
+	bpf_task_storage_delete(&task_storage, task);
+	__sync_add_and_fetch(&hits, 1);
+	return 0;
+}
+
+SEC("fentry/rcu_tasks_trace_pregp_step")
+int pregp_step(struct pt_regs *ctx)
+{
+	current_gp_start = bpf_ktime_get_ns();
+	return 0;
+}
+
+SEC("fentry/rcu_tasks_trace_postgp")
+int postgp(struct pt_regs *ctx)
+{
+	if (!current_gp_start && postgp_seen) {
+		/* Will only happen if prog tracing rcu_tasks_trace_pregp_step doesn't
+		 * execute before this prog
+		 */
+		__sync_add_and_fetch(&unexpected, 1);
+		return 0;
+	}
+
+	__sync_add_and_fetch(&gp_times, bpf_ktime_get_ns() - current_gp_start);
+	__sync_add_and_fetch(&gp_hits, 1);
+	current_gp_start = 0;
+	postgp_seen = true;
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/lsm_cgroup.c b/tools/testing/selftests/bpf/progs/lsm_cgroup.c
new file mode 100644
index 000000000000..4f2d60b87b75
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lsm_cgroup.c
@@ -0,0 +1,180 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include "bpf_tracing_net.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#ifndef AF_PACKET
+#define AF_PACKET 17
+#endif
+
+#ifndef AF_UNIX
+#define AF_UNIX 1
+#endif
+
+#ifndef EPERM
+#define EPERM 1
+#endif
+
+struct {
+	__uint(type, BPF_MAP_TYPE_CGROUP_STORAGE);
+	__type(key, __u64);
+	__type(value, __u64);
+} cgroup_storage SEC(".maps");
+
+int called_socket_post_create;
+int called_socket_post_create2;
+int called_socket_bind;
+int called_socket_bind2;
+int called_socket_alloc;
+int called_socket_clone;
+
+static __always_inline int test_local_storage(void)
+{
+	__u64 *val;
+
+	val = bpf_get_local_storage(&cgroup_storage, 0);
+	if (!val)
+		return 0;
+	*val += 1;
+
+	return 1;
+}
+
+static __always_inline int real_create(struct socket *sock, int family,
+				       int protocol)
+{
+	struct sock *sk;
+	int prio = 123;
+
+	/* Reject non-tx-only AF_PACKET. */
+	if (family == AF_PACKET && protocol != 0)
+		return 0; /* EPERM */
+
+	sk = sock->sk;
+	if (!sk)
+		return 1;
+
+	/* The rest of the sockets get default policy. */
+	if (bpf_setsockopt(sk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 0; /* EPERM */
+
+	/* Make sure bpf_getsockopt is allowed and works. */
+	prio = 0;
+	if (bpf_getsockopt(sk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 0; /* EPERM */
+	if (prio != 123)
+		return 0; /* EPERM */
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 0; /* EPERM */
+
+	return 1;
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_post_create")
+int BPF_PROG(socket_post_create, struct socket *sock, int family,
+	     int type, int protocol, int kern)
+{
+	called_socket_post_create++;
+	return real_create(sock, family, protocol);
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_post_create")
+int BPF_PROG(socket_post_create2, struct socket *sock, int family,
+	     int type, int protocol, int kern)
+{
+	called_socket_post_create2++;
+	return real_create(sock, family, protocol);
+}
+
+static __always_inline int real_bind(struct socket *sock,
+				     struct sockaddr *address,
+				     int addrlen)
+{
+	struct sockaddr_ll sa = {};
+
+	if (sock->sk->__sk_common.skc_family != AF_PACKET)
+		return 1;
+
+	if (sock->sk->sk_kern_sock)
+		return 1;
+
+	bpf_probe_read_kernel(&sa, sizeof(sa), address);
+	if (sa.sll_protocol)
+		return 0; /* EPERM */
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 0; /* EPERM */
+
+	return 1;
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_bind")
+int BPF_PROG(socket_bind, struct socket *sock, struct sockaddr *address,
+	     int addrlen)
+{
+	called_socket_bind++;
+	return real_bind(sock, address, addrlen);
+}
+
+/* __cgroup_bpf_run_lsm_socket */
+SEC("lsm_cgroup/socket_bind")
+int BPF_PROG(socket_bind2, struct socket *sock, struct sockaddr *address,
+	     int addrlen)
+{
+	called_socket_bind2++;
+	return real_bind(sock, address, addrlen);
+}
+
+/* __cgroup_bpf_run_lsm_current (via bpf_lsm_current_hooks) */
+SEC("lsm_cgroup/sk_alloc_security")
+int BPF_PROG(socket_alloc, struct sock *sk, int family, gfp_t priority)
+{
+	called_socket_alloc++;
+	if (family == AF_UNIX)
+		return 0; /* EPERM */
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 0; /* EPERM */
+
+	return 1;
+}
+
+/* __cgroup_bpf_run_lsm_sock */
+SEC("lsm_cgroup/inet_csk_clone")
+int BPF_PROG(socket_clone, struct sock *newsk, const struct request_sock *req)
+{
+	int prio = 234;
+
+	if (!newsk)
+		return 1;
+
+	/* Accepted request sockets get a different priority. */
+	if (bpf_setsockopt(newsk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 1;
+
+	/* Make sure bpf_getsockopt is allowed and works. */
+	prio = 0;
+	if (bpf_getsockopt(newsk, SOL_SOCKET, SO_PRIORITY, &prio, sizeof(prio)))
+		return 1;
+	if (prio != 234)
+		return 1;
+
+	/* Can access cgroup local storage. */
+	if (!test_local_storage())
+		return 1;
+
+	called_socket_clone++;
+
+	return 1;
+}
diff --git a/tools/testing/selftests/bpf/progs/lsm_cgroup_nonvoid.c b/tools/testing/selftests/bpf/progs/lsm_cgroup_nonvoid.c
new file mode 100644
index 000000000000..6cb0f161f417
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/lsm_cgroup_nonvoid.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("lsm_cgroup/inet_csk_clone")
+int BPF_PROG(nonvoid_socket_clone, struct sock *newsk, const struct request_sock *req)
+{
+	/* Can not return any errors from void LSM hooks. */
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c b/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c
new file mode 100644
index 000000000000..7bb872fb22dd
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_incompl_cong_ops.c
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+static inline struct tcp_sock *tcp_sk(const struct sock *sk)
+{
+	return (struct tcp_sock *)sk;
+}
+
+SEC("struct_ops/incompl_cong_ops_ssthresh")
+__u32 BPF_PROG(incompl_cong_ops_ssthresh, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_ssthresh;
+}
+
+SEC("struct_ops/incompl_cong_ops_undo_cwnd")
+__u32 BPF_PROG(incompl_cong_ops_undo_cwnd, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_cwnd;
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops incompl_cong_ops = {
+	/* Intentionally leaving out any of the required cong_avoid() and
+	 * cong_control() here.
+	 */
+	.ssthresh = (void *)incompl_cong_ops_ssthresh,
+	.undo_cwnd = (void *)incompl_cong_ops_undo_cwnd,
+	.name = "bpf_incompl_ops",
+};
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c b/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c
new file mode 100644
index 000000000000..c06f4a41c21a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_unsupp_cong_op.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+SEC("struct_ops/unsupp_cong_op_get_info")
+size_t BPF_PROG(unsupp_cong_op_get_info, struct sock *sk, u32 ext, int *attr,
+		union tcp_cc_info *info)
+{
+	return 0;
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops unsupp_cong_op = {
+	.get_info = (void *)unsupp_cong_op_get_info,
+	.name = "bpf_unsupp_op",
+};
diff --git a/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c b/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c
new file mode 100644
index 000000000000..43447704cf0e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/tcp_ca_write_sk_pacing.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_tracing.h>
+
+char _license[] SEC("license") = "GPL";
+
+#define USEC_PER_SEC 1000000UL
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+
+static inline struct tcp_sock *tcp_sk(const struct sock *sk)
+{
+	return (struct tcp_sock *)sk;
+}
+
+SEC("struct_ops/write_sk_pacing_init")
+void BPF_PROG(write_sk_pacing_init, struct sock *sk)
+{
+#ifdef ENABLE_ATOMICS_TESTS
+	__sync_bool_compare_and_swap(&sk->sk_pacing_status, SK_PACING_NONE,
+				     SK_PACING_NEEDED);
+#else
+	sk->sk_pacing_status = SK_PACING_NEEDED;
+#endif
+}
+
+SEC("struct_ops/write_sk_pacing_cong_control")
+void BPF_PROG(write_sk_pacing_cong_control, struct sock *sk,
+	      const struct rate_sample *rs)
+{
+	const struct tcp_sock *tp = tcp_sk(sk);
+	unsigned long rate =
+		((tp->snd_cwnd * tp->mss_cache * USEC_PER_SEC) << 3) /
+		(tp->srtt_us ?: 1U << 3);
+	sk->sk_pacing_rate = min(rate, sk->sk_max_pacing_rate);
+}
+
+SEC("struct_ops/write_sk_pacing_ssthresh")
+__u32 BPF_PROG(write_sk_pacing_ssthresh, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_ssthresh;
+}
+
+SEC("struct_ops/write_sk_pacing_undo_cwnd")
+__u32 BPF_PROG(write_sk_pacing_undo_cwnd, struct sock *sk)
+{
+	return tcp_sk(sk)->snd_cwnd;
+}
+
+SEC(".struct_ops")
+struct tcp_congestion_ops write_sk_pacing = {
+	.init = (void *)write_sk_pacing_init,
+	.cong_control = (void *)write_sk_pacing_cong_control,
+	.ssthresh = (void *)write_sk_pacing_ssthresh,
+	.undo_cwnd = (void *)write_sk_pacing_undo_cwnd,
+	.name = "bpf_w_sk_pacing",
+};
diff --git a/tools/testing/selftests/bpf/progs/test_attach_probe.c b/tools/testing/selftests/bpf/progs/test_attach_probe.c
index ce9acf4db8d2..a1e45fec8938 100644
--- a/tools/testing/selftests/bpf/progs/test_attach_probe.c
+++ b/tools/testing/selftests/bpf/progs/test_attach_probe.c
@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0
 // Copyright (c) 2017 Facebook
 
-#include <linux/ptrace.h>
-#include <linux/bpf.h>
+#include "vmlinux.h"
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
 #include "bpf_misc.h"
 
 int kprobe_res = 0;
@@ -17,6 +17,11 @@ int uprobe_byname_res = 0;
 int uretprobe_byname_res = 0;
 int uprobe_byname2_res = 0;
 int uretprobe_byname2_res = 0;
+int uprobe_byname3_sleepable_res = 0;
+int uprobe_byname3_res = 0;
+int uretprobe_byname3_sleepable_res = 0;
+int uretprobe_byname3_res = 0;
+void *user_ptr = 0;
 
 SEC("kprobe")
 int handle_kprobe(struct pt_regs *ctx)
@@ -25,13 +30,24 @@ int handle_kprobe(struct pt_regs *ctx)
 	return 0;
 }
 
-SEC("kprobe/" SYS_PREFIX "sys_nanosleep")
-int BPF_KPROBE(handle_kprobe_auto)
+SEC("ksyscall/nanosleep")
+int BPF_KSYSCALL(handle_kprobe_auto, struct __kernel_timespec *req, struct __kernel_timespec *rem)
 {
 	kprobe2_res = 11;
 	return 0;
 }
 
+/**
+ * This program will be manually made sleepable on the userspace side
+ * and should thus be unattachable.
+ */
+SEC("kprobe/" SYS_PREFIX "sys_nanosleep")
+int handle_kprobe_sleepable(struct pt_regs *ctx)
+{
+	kprobe_res = 2;
+	return 0;
+}
+
 SEC("kretprobe")
 int handle_kretprobe(struct pt_regs *ctx)
 {
@@ -39,11 +55,11 @@ int handle_kretprobe(struct pt_regs *ctx)
 	return 0;
 }
 
-SEC("kretprobe/" SYS_PREFIX "sys_nanosleep")
-int BPF_KRETPROBE(handle_kretprobe_auto)
+SEC("kretsyscall/nanosleep")
+int BPF_KRETPROBE(handle_kretprobe_auto, int ret)
 {
 	kretprobe2_res = 22;
-	return 0;
+	return ret;
 }
 
 SEC("uprobe")
@@ -93,4 +109,47 @@ int handle_uretprobe_byname2(struct pt_regs *ctx)
 	return 0;
 }
 
+static __always_inline bool verify_sleepable_user_copy(void)
+{
+	char data[9];
+
+	bpf_copy_from_user(data, sizeof(data), user_ptr);
+	return bpf_strncmp(data, sizeof(data), "test_data") == 0;
+}
+
+SEC("uprobe.s//proc/self/exe:trigger_func3")
+int handle_uprobe_byname3_sleepable(struct pt_regs *ctx)
+{
+	if (verify_sleepable_user_copy())
+		uprobe_byname3_sleepable_res = 9;
+	return 0;
+}
+
+/**
+ * same target as the uprobe.s above to force sleepable and non-sleepable
+ * programs in the same bpf_prog_array
+ */
+SEC("uprobe//proc/self/exe:trigger_func3")
+int handle_uprobe_byname3(struct pt_regs *ctx)
+{
+	uprobe_byname3_res = 10;
+	return 0;
+}
+
+SEC("uretprobe.s//proc/self/exe:trigger_func3")
+int handle_uretprobe_byname3_sleepable(struct pt_regs *ctx)
+{
+	if (verify_sleepable_user_copy())
+		uretprobe_byname3_sleepable_res = 11;
+	return 0;
+}
+
+SEC("uretprobe//proc/self/exe:trigger_func3")
+int handle_uretprobe_byname3(struct pt_regs *ctx)
+{
+	uretprobe_byname3_res = 12;
+	return 0;
+}
+
+
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_bpf_nf.c b/tools/testing/selftests/bpf/progs/test_bpf_nf.c
index f00a9731930e..196cd8dfe42a 100644
--- a/tools/testing/selftests/bpf/progs/test_bpf_nf.c
+++ b/tools/testing/selftests/bpf/progs/test_bpf_nf.c
@@ -8,6 +8,8 @@
 #define EINVAL 22
 #define ENOENT 2
 
+extern unsigned long CONFIG_HZ __kconfig;
+
 int test_einval_bpf_tuple = 0;
 int test_einval_reserved = 0;
 int test_einval_netns_id = 0;
@@ -16,6 +18,11 @@ int test_eproto_l4proto = 0;
 int test_enonet_netns_id = 0;
 int test_enoent_lookup = 0;
 int test_eafnosupport = 0;
+int test_alloc_entry = -EINVAL;
+int test_insert_entry = -EAFNOSUPPORT;
+int test_succ_lookup = -ENOENT;
+u32 test_delta_timeout = 0;
+u32 test_status = 0;
 
 struct nf_conn;
 
@@ -26,31 +33,44 @@ struct bpf_ct_opts___local {
 	u8 reserved[3];
 } __attribute__((preserve_access_index));
 
+struct nf_conn *bpf_xdp_ct_alloc(struct xdp_md *, struct bpf_sock_tuple *, u32,
+				 struct bpf_ct_opts___local *, u32) __ksym;
 struct nf_conn *bpf_xdp_ct_lookup(struct xdp_md *, struct bpf_sock_tuple *, u32,
 				  struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_skb_ct_alloc(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				 struct bpf_ct_opts___local *, u32) __ksym;
 struct nf_conn *bpf_skb_ct_lookup(struct __sk_buff *, struct bpf_sock_tuple *, u32,
 				  struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_ct_insert_entry(struct nf_conn *) __ksym;
 void bpf_ct_release(struct nf_conn *) __ksym;
+void bpf_ct_set_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_set_status(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_status(struct nf_conn *, u32) __ksym;
 
 static __always_inline void
-nf_ct_test(struct nf_conn *(*func)(void *, struct bpf_sock_tuple *, u32,
-				   struct bpf_ct_opts___local *, u32),
+nf_ct_test(struct nf_conn *(*lookup_fn)(void *, struct bpf_sock_tuple *, u32,
+					struct bpf_ct_opts___local *, u32),
+	   struct nf_conn *(*alloc_fn)(void *, struct bpf_sock_tuple *, u32,
+				       struct bpf_ct_opts___local *, u32),
 	   void *ctx)
 {
 	struct bpf_ct_opts___local opts_def = { .l4proto = IPPROTO_TCP, .netns_id = -1 };
 	struct bpf_sock_tuple bpf_tuple;
 	struct nf_conn *ct;
+	int err;
 
 	__builtin_memset(&bpf_tuple, 0, sizeof(bpf_tuple.ipv4));
 
-	ct = func(ctx, NULL, 0, &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, NULL, 0, &opts_def, sizeof(opts_def));
 	if (ct)
 		bpf_ct_release(ct);
 	else
 		test_einval_bpf_tuple = opts_def.error;
 
 	opts_def.reserved[0] = 1;
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
 	opts_def.reserved[0] = 0;
 	opts_def.l4proto = IPPROTO_TCP;
 	if (ct)
@@ -59,21 +79,24 @@ nf_ct_test(struct nf_conn *(*func)(void *, struct bpf_sock_tuple *, u32,
 		test_einval_reserved = opts_def.error;
 
 	opts_def.netns_id = -2;
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
 	opts_def.netns_id = -1;
 	if (ct)
 		bpf_ct_release(ct);
 	else
 		test_einval_netns_id = opts_def.error;
 
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def, sizeof(opts_def) - 1);
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def) - 1);
 	if (ct)
 		bpf_ct_release(ct);
 	else
 		test_einval_len_opts = opts_def.error;
 
 	opts_def.l4proto = IPPROTO_ICMP;
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
 	opts_def.l4proto = IPPROTO_TCP;
 	if (ct)
 		bpf_ct_release(ct);
@@ -81,37 +104,75 @@ nf_ct_test(struct nf_conn *(*func)(void *, struct bpf_sock_tuple *, u32,
 		test_eproto_l4proto = opts_def.error;
 
 	opts_def.netns_id = 0xf00f;
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
 	opts_def.netns_id = -1;
 	if (ct)
 		bpf_ct_release(ct);
 	else
 		test_enonet_netns_id = opts_def.error;
 
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		       sizeof(opts_def));
 	if (ct)
 		bpf_ct_release(ct);
 	else
 		test_enoent_lookup = opts_def.error;
 
-	ct = func(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4) - 1, &opts_def, sizeof(opts_def));
+	ct = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4) - 1, &opts_def,
+		       sizeof(opts_def));
 	if (ct)
 		bpf_ct_release(ct);
 	else
 		test_eafnosupport = opts_def.error;
+
+	bpf_tuple.ipv4.saddr = bpf_get_prandom_u32(); /* src IP */
+	bpf_tuple.ipv4.daddr = bpf_get_prandom_u32(); /* dst IP */
+	bpf_tuple.ipv4.sport = bpf_get_prandom_u32(); /* src port */
+	bpf_tuple.ipv4.dport = bpf_get_prandom_u32(); /* dst port */
+
+	ct = alloc_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4), &opts_def,
+		      sizeof(opts_def));
+	if (ct) {
+		struct nf_conn *ct_ins;
+
+		bpf_ct_set_timeout(ct, 10000);
+		bpf_ct_set_status(ct, IPS_CONFIRMED);
+
+		ct_ins = bpf_ct_insert_entry(ct);
+		if (ct_ins) {
+			struct nf_conn *ct_lk;
+
+			ct_lk = lookup_fn(ctx, &bpf_tuple, sizeof(bpf_tuple.ipv4),
+					  &opts_def, sizeof(opts_def));
+			if (ct_lk) {
+				/* update ct entry timeout */
+				bpf_ct_change_timeout(ct_lk, 10000);
+				test_delta_timeout = ct_lk->timeout - bpf_jiffies64();
+				test_delta_timeout /= CONFIG_HZ;
+				test_status = IPS_SEEN_REPLY;
+				bpf_ct_change_status(ct_lk, IPS_SEEN_REPLY);
+				bpf_ct_release(ct_lk);
+				test_succ_lookup = 0;
+			}
+			bpf_ct_release(ct_ins);
+			test_insert_entry = 0;
+		}
+		test_alloc_entry = 0;
+	}
 }
 
 SEC("xdp")
 int nf_xdp_ct_test(struct xdp_md *ctx)
 {
-	nf_ct_test((void *)bpf_xdp_ct_lookup, ctx);
+	nf_ct_test((void *)bpf_xdp_ct_lookup, (void *)bpf_xdp_ct_alloc, ctx);
 	return 0;
 }
 
 SEC("tc")
 int nf_skb_ct_test(struct __sk_buff *ctx)
 {
-	nf_ct_test((void *)bpf_skb_ct_lookup, ctx);
+	nf_ct_test((void *)bpf_skb_ct_lookup, (void *)bpf_skb_ct_alloc, ctx);
 	return 0;
 }
 
diff --git a/tools/testing/selftests/bpf/progs/test_bpf_nf_fail.c b/tools/testing/selftests/bpf/progs/test_bpf_nf_fail.c
new file mode 100644
index 000000000000..bf79af15c808
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_bpf_nf_fail.c
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <vmlinux.h>
+#include <bpf/bpf_tracing.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+struct nf_conn;
+
+struct bpf_ct_opts___local {
+	s32 netns_id;
+	s32 error;
+	u8 l4proto;
+	u8 reserved[3];
+} __attribute__((preserve_access_index));
+
+struct nf_conn *bpf_skb_ct_alloc(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				 struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_skb_ct_lookup(struct __sk_buff *, struct bpf_sock_tuple *, u32,
+				  struct bpf_ct_opts___local *, u32) __ksym;
+struct nf_conn *bpf_ct_insert_entry(struct nf_conn *) __ksym;
+void bpf_ct_release(struct nf_conn *) __ksym;
+void bpf_ct_set_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_timeout(struct nf_conn *, u32) __ksym;
+int bpf_ct_set_status(struct nf_conn *, u32) __ksym;
+int bpf_ct_change_status(struct nf_conn *, u32) __ksym;
+
+SEC("?tc")
+int alloc_release(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_release(ct);
+	return 0;
+}
+
+SEC("?tc")
+int insert_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	return 0;
+}
+
+SEC("?tc")
+int lookup_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_lookup(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_insert_entry(ct);
+	return 0;
+}
+
+SEC("?tc")
+int set_timeout_after_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	if (!ct)
+		return 0;
+	bpf_ct_set_timeout(ct, 0);
+	return 0;
+}
+
+SEC("?tc")
+int set_status_after_insert(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	ct = bpf_ct_insert_entry(ct);
+	if (!ct)
+		return 0;
+	bpf_ct_set_status(ct, 0);
+	return 0;
+}
+
+SEC("?tc")
+int change_timeout_after_alloc(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_change_timeout(ct, 0);
+	return 0;
+}
+
+SEC("?tc")
+int change_status_after_alloc(struct __sk_buff *ctx)
+{
+	struct bpf_ct_opts___local opts = {};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+
+	ct = bpf_skb_ct_alloc(ctx, &tup, sizeof(tup.ipv4), &opts, sizeof(opts));
+	if (!ct)
+		return 0;
+	bpf_ct_change_status(ct, 0);
+	return 0;
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_haskv.c b/tools/testing/selftests/bpf/progs/test_btf_haskv.c
deleted file mode 100644
index 07c94df13660..000000000000
--- a/tools/testing/selftests/bpf/progs/test_btf_haskv.c
+++ /dev/null
@@ -1,51 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* Copyright (c) 2018 Facebook */
-#include <linux/bpf.h>
-#include <bpf/bpf_helpers.h>
-#include "bpf_legacy.h"
-
-struct ipv_counts {
-	unsigned int v4;
-	unsigned int v6;
-};
-
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-struct bpf_map_def SEC("maps") btf_map = {
-	.type = BPF_MAP_TYPE_ARRAY,
-	.key_size = sizeof(int),
-	.value_size = sizeof(struct ipv_counts),
-	.max_entries = 4,
-};
-#pragma GCC diagnostic pop
-
-BPF_ANNOTATE_KV_PAIR(btf_map, int, struct ipv_counts);
-
-__attribute__((noinline))
-int test_long_fname_2(void)
-{
-	struct ipv_counts *counts;
-	int key = 0;
-
-	counts = bpf_map_lookup_elem(&btf_map, &key);
-	if (!counts)
-		return 0;
-
-	counts->v6++;
-
-	return 0;
-}
-
-__attribute__((noinline))
-int test_long_fname_1(void)
-{
-	return test_long_fname_2();
-}
-
-SEC("dummy_tracepoint")
-int _dummy_tracepoint(void *arg)
-{
-	return test_long_fname_1();
-}
-
-char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_btf_newkv.c b/tools/testing/selftests/bpf/progs/test_btf_newkv.c
index 762671a2e90c..251854a041b5 100644
--- a/tools/testing/selftests/bpf/progs/test_btf_newkv.c
+++ b/tools/testing/selftests/bpf/progs/test_btf_newkv.c
@@ -9,19 +9,6 @@ struct ipv_counts {
 	unsigned int v6;
 };
 
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
-/* just to validate we can handle maps in multiple sections */
-struct bpf_map_def SEC("maps") btf_map_legacy = {
-	.type = BPF_MAP_TYPE_ARRAY,
-	.key_size = sizeof(int),
-	.value_size = sizeof(long long),
-	.max_entries = 4,
-};
-#pragma GCC diagnostic pop
-
-BPF_ANNOTATE_KV_PAIR(btf_map_legacy, int, struct ipv_counts);
-
 struct {
 	__uint(type, BPF_MAP_TYPE_ARRAY);
 	__uint(max_entries, 4);
@@ -41,11 +28,6 @@ int test_long_fname_2(void)
 
 	counts->v6++;
 
-	/* just verify we can reference both maps */
-	counts = bpf_map_lookup_elem(&btf_map_legacy, &key);
-	if (!counts)
-		return 0;
-
 	return 0;
 }
 
diff --git a/tools/testing/selftests/bpf/progs/test_core_extern.c b/tools/testing/selftests/bpf/progs/test_core_extern.c
index 3ac3603ad53d..a3c7c1042f35 100644
--- a/tools/testing/selftests/bpf/progs/test_core_extern.c
+++ b/tools/testing/selftests/bpf/progs/test_core_extern.c
@@ -11,6 +11,7 @@
 static int (*bpf_missing_helper)(const void *arg1, int arg2) = (void *) 999;
 
 extern int LINUX_KERNEL_VERSION __kconfig;
+extern int LINUX_UNKNOWN_VIRTUAL_EXTERN __kconfig __weak;
 extern bool CONFIG_BPF_SYSCALL __kconfig; /* strong */
 extern enum libbpf_tristate CONFIG_TRISTATE __kconfig __weak;
 extern bool CONFIG_BOOL __kconfig __weak;
@@ -22,6 +23,7 @@ extern const char CONFIG_STR[8] __kconfig __weak;
 extern uint64_t CONFIG_MISSING __kconfig __weak;
 
 uint64_t kern_ver = -1;
+uint64_t unkn_virt_val = -1;
 uint64_t bpf_syscall = -1;
 uint64_t tristate_val = -1;
 uint64_t bool_val = -1;
@@ -38,6 +40,7 @@ int handle_sys_enter(struct pt_regs *ctx)
 	int i;
 
 	kern_ver = LINUX_KERNEL_VERSION;
+	unkn_virt_val = LINUX_UNKNOWN_VIRTUAL_EXTERN;
 	bpf_syscall = CONFIG_BPF_SYSCALL;
 	tristate_val = CONFIG_TRISTATE;
 	bool_val = CONFIG_BOOL;
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c b/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
new file mode 100644
index 000000000000..63147fbfae6e
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_enum64val.c
@@ -0,0 +1,70 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2022 Meta Platforms, Inc. and affiliates. */
+
+#include <linux/bpf.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_core_read.h>
+
+char _license[] SEC("license") = "GPL";
+
+struct {
+	char in[256];
+	char out[256];
+	bool skip;
+} data = {};
+
+enum named_unsigned_enum64 {
+	UNSIGNED_ENUM64_VAL1 = 0x1ffffffffULL,
+	UNSIGNED_ENUM64_VAL2 = 0x2ffffffffULL,
+	UNSIGNED_ENUM64_VAL3 = 0x3ffffffffULL,
+};
+
+enum named_signed_enum64 {
+	SIGNED_ENUM64_VAL1 = 0x1ffffffffLL,
+	SIGNED_ENUM64_VAL2 = -2,
+	SIGNED_ENUM64_VAL3 = 0x3ffffffffLL,
+};
+
+struct core_reloc_enum64val_output {
+	bool unsigned_val1_exists;
+	bool unsigned_val2_exists;
+	bool unsigned_val3_exists;
+	bool signed_val1_exists;
+	bool signed_val2_exists;
+	bool signed_val3_exists;
+
+	long unsigned_val1;
+	long unsigned_val2;
+	long signed_val1;
+	long signed_val2;
+};
+
+SEC("raw_tracepoint/sys_enter")
+int test_core_enum64val(void *ctx)
+{
+#if __clang_major__ >= 15
+	struct core_reloc_enum64val_output *out = (void *)&data.out;
+	enum named_unsigned_enum64 named_unsigned = 0;
+	enum named_signed_enum64 named_signed = 0;
+
+	out->unsigned_val1_exists = bpf_core_enum_value_exists(named_unsigned, UNSIGNED_ENUM64_VAL1);
+	out->unsigned_val2_exists = bpf_core_enum_value_exists(enum named_unsigned_enum64, UNSIGNED_ENUM64_VAL2);
+	out->unsigned_val3_exists = bpf_core_enum_value_exists(enum named_unsigned_enum64, UNSIGNED_ENUM64_VAL3);
+	out->signed_val1_exists = bpf_core_enum_value_exists(named_signed, SIGNED_ENUM64_VAL1);
+	out->signed_val2_exists = bpf_core_enum_value_exists(enum named_signed_enum64, SIGNED_ENUM64_VAL2);
+	out->signed_val3_exists = bpf_core_enum_value_exists(enum named_signed_enum64, SIGNED_ENUM64_VAL3);
+
+	out->unsigned_val1 = bpf_core_enum_value(named_unsigned, UNSIGNED_ENUM64_VAL1);
+	out->unsigned_val2 = bpf_core_enum_value(named_unsigned, UNSIGNED_ENUM64_VAL2);
+	out->signed_val1 = bpf_core_enum_value(named_signed, SIGNED_ENUM64_VAL1);
+	out->signed_val2 = bpf_core_enum_value(named_signed, SIGNED_ENUM64_VAL2);
+	/* NAMED_ENUM64_VAL3 value is optional */
+
+#else
+	data.skip = true;
+#endif
+
+	return 0;
+}
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c b/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c
index 145028b52ad8..a17dd83eae67 100644
--- a/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_kernel.c
@@ -21,6 +21,7 @@ struct core_reloc_kernel_output {
 	/* we have test_progs[-flavor], so cut flavor part */
 	char comm[sizeof("test_progs")];
 	int comm_len;
+	bool local_task_struct_matches;
 };
 
 struct task_struct {
@@ -30,11 +31,25 @@ struct task_struct {
 	struct task_struct *group_leader;
 };
 
+struct mm_struct___wrong {
+    int abc_whatever_should_not_exist;
+};
+
+struct task_struct___local {
+    int pid;
+    struct mm_struct___wrong *mm;
+};
+
 #define CORE_READ(dst, src) bpf_core_read(dst, sizeof(*(dst)), src)
 
 SEC("raw_tracepoint/sys_enter")
 int test_core_kernel(void *ctx)
 {
+	/* Support for the BPF_TYPE_MATCHES argument to the
+	 * __builtin_preserve_type_info builtin was added at some point during
+	 * development of clang 15 and it's what we require for this test.
+	 */
+#if __has_builtin(__builtin_preserve_type_info) && __clang_major__ >= 15
 	struct task_struct *task = (void *)bpf_get_current_task();
 	struct core_reloc_kernel_output *out = (void *)&data.out;
 	uint64_t pid_tgid = bpf_get_current_pid_tgid();
@@ -93,6 +108,10 @@ int test_core_kernel(void *ctx)
 		group_leader, group_leader, group_leader, group_leader,
 		comm);
 
+	out->local_task_struct_matches = bpf_core_type_matches(struct task_struct___local);
+#else
+	data.skip = true;
+#endif
 	return 0;
 }
 
diff --git a/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c b/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c
index fb60f8195c53..2edb4df35e6e 100644
--- a/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c
+++ b/tools/testing/selftests/bpf/progs/test_core_reloc_type_based.c
@@ -19,6 +19,14 @@ struct a_struct {
 	int x;
 };
 
+struct a_complex_struct {
+	union {
+		struct a_struct *a;
+		void *b;
+	} x;
+	volatile long y;
+};
+
 union a_union {
 	int y;
 	int z;
@@ -43,6 +51,7 @@ typedef int int_typedef;
 typedef enum { TYPEDEF_ENUM_VAL1, TYPEDEF_ENUM_VAL2 } enum_typedef;
 
 typedef void *void_ptr_typedef;
+typedef int *restrict restrict_ptr_typedef;
 
 typedef int (*func_proto_typedef)(long);
 
@@ -50,6 +59,7 @@ typedef char arr_typedef[20];
 
 struct core_reloc_type_based_output {
 	bool struct_exists;
+	bool complex_struct_exists;
 	bool union_exists;
 	bool enum_exists;
 	bool typedef_named_struct_exists;
@@ -58,9 +68,24 @@ struct core_reloc_type_based_output {
 	bool typedef_int_exists;
 	bool typedef_enum_exists;
 	bool typedef_void_ptr_exists;
+	bool typedef_restrict_ptr_exists;
 	bool typedef_func_proto_exists;
 	bool typedef_arr_exists;
 
+	bool struct_matches;
+	bool complex_struct_matches;
+	bool union_matches;
+	bool enum_matches;
+	bool typedef_named_struct_matches;
+	bool typedef_anon_struct_matches;
+	bool typedef_struct_ptr_matches;
+	bool typedef_int_matches;
+	bool typedef_enum_matches;
+	bool typedef_void_ptr_matches;
+	bool typedef_restrict_ptr_matches;
+	bool typedef_func_proto_matches;
+	bool typedef_arr_matches;
+
 	int struct_sz;
 	int union_sz;
 	int enum_sz;
@@ -77,10 +102,17 @@ struct core_reloc_type_based_output {
 SEC("raw_tracepoint/sys_enter")
 int test_core_type_based(void *ctx)
 {
-#if __has_builtin(__builtin_preserve_type_info)
+	/* Support for the BPF_TYPE_MATCHES argument to the
+	 * __builtin_preserve_type_info builtin was added at some point during
+	 * development of clang 15 and it's what we require for this test. Part of it
+	 * could run with merely __builtin_preserve_type_info (which could be checked
+	 * separately), but we have to find an upper bound.
+	 */
+#if __has_builtin(__builtin_preserve_type_info) && __clang_major__ >= 15
 	struct core_reloc_type_based_output *out = (void *)&data.out;
 
 	out->struct_exists = bpf_core_type_exists(struct a_struct);
+	out->complex_struct_exists = bpf_core_type_exists(struct a_complex_struct);
 	out->union_exists = bpf_core_type_exists(union a_union);
 	out->enum_exists = bpf_core_type_exists(enum an_enum);
 	out->typedef_named_struct_exists = bpf_core_type_exists(named_struct_typedef);
@@ -89,9 +121,24 @@ int test_core_type_based(void *ctx)
 	out->typedef_int_exists = bpf_core_type_exists(int_typedef);
 	out->typedef_enum_exists = bpf_core_type_exists(enum_typedef);
 	out->typedef_void_ptr_exists = bpf_core_type_exists(void_ptr_typedef);
+	out->typedef_restrict_ptr_exists = bpf_core_type_exists(restrict_ptr_typedef);
 	out->typedef_func_proto_exists = bpf_core_type_exists(func_proto_typedef);
 	out->typedef_arr_exists = bpf_core_type_exists(arr_typedef);
 
+	out->struct_matches = bpf_core_type_matches(struct a_struct);
+	out->complex_struct_matches = bpf_core_type_matches(struct a_complex_struct);
+	out->union_matches = bpf_core_type_matches(union a_union);
+	out->enum_matches = bpf_core_type_matches(enum an_enum);
+	out->typedef_named_struct_matches = bpf_core_type_matches(named_struct_typedef);
+	out->typedef_anon_struct_matches = bpf_core_type_matches(anon_struct_typedef);
+	out->typedef_struct_ptr_matches = bpf_core_type_matches(struct_ptr_typedef);
+	out->typedef_int_matches = bpf_core_type_matches(int_typedef);
+	out->typedef_enum_matches = bpf_core_type_matches(enum_typedef);
+	out->typedef_void_ptr_matches = bpf_core_type_matches(void_ptr_typedef);
+	out->typedef_restrict_ptr_matches = bpf_core_type_matches(restrict_ptr_typedef);
+	out->typedef_func_proto_matches = bpf_core_type_matches(func_proto_typedef);
+	out->typedef_arr_matches = bpf_core_type_matches(arr_typedef);
+
 	out->struct_sz = bpf_core_type_size(struct a_struct);
 	out->union_sz = bpf_core_type_size(union a_union);
 	out->enum_sz = bpf_core_type_size(enum an_enum);
diff --git a/tools/testing/selftests/bpf/progs/test_probe_user.c b/tools/testing/selftests/bpf/progs/test_probe_user.c
index 702578a5e496..a8e501af9604 100644
--- a/tools/testing/selftests/bpf/progs/test_probe_user.c
+++ b/tools/testing/selftests/bpf/progs/test_probe_user.c
@@ -1,37 +1,47 @@
 // SPDX-License-Identifier: GPL-2.0
-
-#include <linux/ptrace.h>
-#include <linux/bpf.h>
-
-#include <netinet/in.h>
-
+#include "vmlinux.h"
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_tracing.h>
+#include <bpf/bpf_core_read.h>
 #include "bpf_misc.h"
 
 static struct sockaddr_in old;
 
-SEC("kprobe/" SYS_PREFIX "sys_connect")
-int BPF_KPROBE(handle_sys_connect)
+static int handle_sys_connect_common(struct sockaddr_in *uservaddr)
 {
-#if SYSCALL_WRAPPER == 1
-	struct pt_regs *real_regs;
-#endif
 	struct sockaddr_in new;
-	void *ptr;
 
-#if SYSCALL_WRAPPER == 0
-	ptr = (void *)PT_REGS_PARM2(ctx);
-#else
-	real_regs = (struct pt_regs *)PT_REGS_PARM1(ctx);
-	bpf_probe_read_kernel(&ptr, sizeof(ptr), &PT_REGS_PARM2(real_regs));
+	bpf_probe_read_user(&old, sizeof(old), uservaddr);
+	__builtin_memset(&new, 0xab, sizeof(new));
+	bpf_probe_write_user(uservaddr, &new, sizeof(new));
+
+	return 0;
+}
+
+SEC("ksyscall/connect")
+int BPF_KSYSCALL(handle_sys_connect, int fd, struct sockaddr_in *uservaddr,
+		 int addrlen)
+{
+	return handle_sys_connect_common(uservaddr);
+}
+
+#if defined(bpf_target_s390)
+#ifndef SYS_CONNECT
+#define SYS_CONNECT 3
 #endif
 
-	bpf_probe_read_user(&old, sizeof(old), ptr);
-	__builtin_memset(&new, 0xab, sizeof(new));
-	bpf_probe_write_user(ptr, &new, sizeof(new));
+SEC("ksyscall/socketcall")
+int BPF_KSYSCALL(handle_sys_socketcall, int call, unsigned long *args)
+{
+	if (call == SYS_CONNECT) {
+		struct sockaddr_in *uservaddr;
+
+		bpf_probe_read_user(&uservaddr, sizeof(uservaddr), &args[1]);
+		return handle_sys_connect_common(uservaddr);
+	}
 
 	return 0;
 }
+#endif
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/progs/test_skeleton.c b/tools/testing/selftests/bpf/progs/test_skeleton.c
index 1b1187d2967b..1a4e93f6d9df 100644
--- a/tools/testing/selftests/bpf/progs/test_skeleton.c
+++ b/tools/testing/selftests/bpf/progs/test_skeleton.c
@@ -51,6 +51,8 @@ int out_dynarr[4] SEC(".data.dyn") = { 1, 2, 3, 4 };
 int read_mostly_var __read_mostly;
 int out_mostly_var;
 
+char huge_arr[16 * 1024 * 1024];
+
 SEC("raw_tp/sys_enter")
 int handler(const void *ctx)
 {
@@ -71,6 +73,8 @@ int handler(const void *ctx)
 
 	out_mostly_var = read_mostly_var;
 
+	huge_arr[sizeof(huge_arr) - 1] = 123;
+
 	return 0;
 }
 
diff --git a/tools/testing/selftests/bpf/progs/test_tc_dtime.c b/tools/testing/selftests/bpf/progs/test_tc_dtime.c
index 06f300d06dbd..b596479a9ebe 100644
--- a/tools/testing/selftests/bpf/progs/test_tc_dtime.c
+++ b/tools/testing/selftests/bpf/progs/test_tc_dtime.c
@@ -11,6 +11,8 @@
 #include <linux/in.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_endian.h>
 #include <sys/socket.h>
@@ -115,6 +117,19 @@ static bool bpf_fwd(void)
 	return test < TCP_IP4_RT_FWD;
 }
 
+static __u8 get_proto(void)
+{
+	switch (test) {
+	case UDP_IP4:
+	case UDP_IP6:
+	case UDP_IP4_RT_FWD:
+	case UDP_IP6_RT_FWD:
+		return IPPROTO_UDP;
+	default:
+		return IPPROTO_TCP;
+	}
+}
+
 /* -1: parse error: TC_ACT_SHOT
  *  0: not testing traffic: TC_ACT_OK
  * >0: first byte is the inet_proto, second byte has the netns
@@ -122,11 +137,16 @@ static bool bpf_fwd(void)
  */
 static int skb_get_type(struct __sk_buff *skb)
 {
+	__u16 dst_ns_port = __bpf_htons(50000 + test);
 	void *data_end = ctx_ptr(skb->data_end);
 	void *data = ctx_ptr(skb->data);
 	__u8 inet_proto = 0, ns = 0;
 	struct ipv6hdr *ip6h;
+	__u16 sport, dport;
 	struct iphdr *iph;
+	struct tcphdr *th;
+	struct udphdr *uh;
+	void *trans;
 
 	switch (skb->protocol) {
 	case __bpf_htons(ETH_P_IP):
@@ -138,6 +158,7 @@ static int skb_get_type(struct __sk_buff *skb)
 		else if (iph->saddr == ip4_dst)
 			ns = DST_NS;
 		inet_proto = iph->protocol;
+		trans = iph + 1;
 		break;
 	case __bpf_htons(ETH_P_IPV6):
 		ip6h = data + sizeof(struct ethhdr);
@@ -148,15 +169,43 @@ static int skb_get_type(struct __sk_buff *skb)
 		else if (v6_equal(ip6h->saddr, (struct in6_addr)ip6_dst))
 			ns = DST_NS;
 		inet_proto = ip6h->nexthdr;
+		trans = ip6h + 1;
 		break;
 	default:
 		return 0;
 	}
 
-	if ((inet_proto != IPPROTO_TCP && inet_proto != IPPROTO_UDP) || !ns)
+	/* skb is not from src_ns or dst_ns.
+	 * skb is not the testing IPPROTO.
+	 */
+	if (!ns || inet_proto != get_proto())
 		return 0;
 
-	return (ns << 8 | inet_proto);
+	switch (inet_proto) {
+	case IPPROTO_TCP:
+		th = trans;
+		if (th + 1 > data_end)
+			return -1;
+		sport = th->source;
+		dport = th->dest;
+		break;
+	case IPPROTO_UDP:
+		uh = trans;
+		if (uh + 1 > data_end)
+			return -1;
+		sport = uh->source;
+		dport = uh->dest;
+		break;
+	default:
+		return 0;
+	}
+
+	/* The skb is the testing traffic */
+	if ((ns == SRC_NS && dport == dst_ns_port) ||
+	    (ns == DST_NS && sport == dst_ns_port))
+		return (ns << 8 | inet_proto);
+
+	return 0;
 }
 
 /* format: direction@iface@netns
diff --git a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
index 17f2f325b3f3..df0673c4ecbe 100644
--- a/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
+++ b/tools/testing/selftests/bpf/progs/test_tunnel_kern.c
@@ -14,15 +14,24 @@
 #include <linux/if_packet.h>
 #include <linux/ip.h>
 #include <linux/ipv6.h>
+#include <linux/icmp.h>
 #include <linux/types.h>
 #include <linux/socket.h>
 #include <linux/pkt_cls.h>
 #include <linux/erspan.h>
+#include <linux/udp.h>
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_endian.h>
 
 #define log_err(__ret) bpf_printk("ERROR line:%d ret:%d\n", __LINE__, __ret)
 
+#define VXLAN_UDP_PORT 4789
+
+/* Only IPv4 address assigned to veth1.
+ * 172.16.1.200
+ */
+#define ASSIGNED_ADDR_VETH1 0xac1001c8
+
 struct geneve_opt {
 	__be16	opt_class;
 	__u8	type;
@@ -33,6 +42,11 @@ struct geneve_opt {
 	__u8	opt_data[8]; /* hard-coded to 8 byte */
 };
 
+struct vxlanhdr {
+	__be32 vx_flags;
+	__be32 vx_vni;
+} __attribute__((packed));
+
 struct vxlan_metadata {
 	__u32     gbp;
 };
@@ -369,14 +383,8 @@ int vxlan_get_tunnel_src(struct __sk_buff *skb)
 	int ret;
 	struct bpf_tunnel_key key;
 	struct vxlan_metadata md;
+	__u32 orig_daddr;
 	__u32 index = 0;
-	__u32 *local_ip = NULL;
-
-	local_ip = bpf_map_lookup_elem(&local_ip_map, &index);
-	if (!local_ip) {
-		log_err(ret);
-		return TC_ACT_SHOT;
-	}
 
 	ret = bpf_skb_get_tunnel_key(skb, &key, sizeof(key), 0);
 	if (ret < 0) {
@@ -390,11 +398,10 @@ int vxlan_get_tunnel_src(struct __sk_buff *skb)
 		return TC_ACT_SHOT;
 	}
 
-	if (key.local_ipv4 != *local_ip || md.gbp != 0x800FF) {
+	if (key.local_ipv4 != ASSIGNED_ADDR_VETH1 || md.gbp != 0x800FF) {
 		bpf_printk("vxlan key %d local ip 0x%x remote ip 0x%x gbp 0x%x\n",
 			   key.tunnel_id, key.local_ipv4,
 			   key.remote_ipv4, md.gbp);
-		bpf_printk("local_ip 0x%x\n", *local_ip);
 		log_err(ret);
 		return TC_ACT_SHOT;
 	}
@@ -403,6 +410,61 @@ int vxlan_get_tunnel_src(struct __sk_buff *skb)
 }
 
 SEC("tc")
+int veth_set_outer_dst(struct __sk_buff *skb)
+{
+	struct ethhdr *eth = (struct ethhdr *)(long)skb->data;
+	__u32 assigned_ip = bpf_htonl(ASSIGNED_ADDR_VETH1);
+	void *data_end = (void *)(long)skb->data_end;
+	struct udphdr *udph;
+	struct iphdr *iph;
+	__u32 index = 0;
+	int ret = 0;
+	int shrink;
+	__s64 csum;
+
+	if ((void *)eth + sizeof(*eth) > data_end) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+
+	if (eth->h_proto != bpf_htons(ETH_P_IP))
+		return TC_ACT_OK;
+
+	iph = (struct iphdr *)(eth + 1);
+	if ((void *)iph + sizeof(*iph) > data_end) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+	if (iph->protocol != IPPROTO_UDP)
+		return TC_ACT_OK;
+
+	udph = (struct udphdr *)(iph + 1);
+	if ((void *)udph + sizeof(*udph) > data_end) {
+		log_err(ret);
+		return TC_ACT_SHOT;
+	}
+	if (udph->dest != bpf_htons(VXLAN_UDP_PORT))
+		return TC_ACT_OK;
+
+	if (iph->daddr != assigned_ip) {
+		csum = bpf_csum_diff(&iph->daddr, sizeof(__u32), &assigned_ip,
+				     sizeof(__u32), 0);
+		if (bpf_skb_store_bytes(skb, ETH_HLEN + offsetof(struct iphdr, daddr),
+					&assigned_ip, sizeof(__u32), 0) < 0) {
+			log_err(ret);
+			return TC_ACT_SHOT;
+		}
+		if (bpf_l3_csum_replace(skb, ETH_HLEN + offsetof(struct iphdr, check),
+					0, csum, 0) < 0) {
+			log_err(ret);
+			return TC_ACT_SHOT;
+		}
+		bpf_skb_change_type(skb, PACKET_HOST);
+	}
+	return TC_ACT_OK;
+}
+
+SEC("tc")
 int ip6vxlan_set_tunnel_dst(struct __sk_buff *skb)
 {
 	struct bpf_tunnel_key key;
diff --git a/tools/testing/selftests/bpf/progs/test_varlen.c b/tools/testing/selftests/bpf/progs/test_varlen.c
index 913acdffd90f..3987ff174f1f 100644
--- a/tools/testing/selftests/bpf/progs/test_varlen.c
+++ b/tools/testing/selftests/bpf/progs/test_varlen.c
@@ -41,20 +41,20 @@ int handler64_unsigned(void *regs)
 {
 	int pid = bpf_get_current_pid_tgid() >> 32;
 	void *payload = payload1;
-	u64 len;
+	long len;
 
 	/* ignore irrelevant invocations */
 	if (test_pid != pid || !capture)
 		return 0;
 
 	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in1[0]);
-	if (len <= MAX_LEN) {
+	if (len >= 0) {
 		payload += len;
 		payload1_len1 = len;
 	}
 
 	len = bpf_probe_read_kernel_str(payload, MAX_LEN, &buf_in2[0]);
-	if (len <= MAX_LEN) {
+	if (len >= 0) {
 		payload += len;
 		payload1_len2 = len;
 	}
@@ -123,7 +123,7 @@ int handler32_signed(void *regs)
 {
 	int pid = bpf_get_current_pid_tgid() >> 32;
 	void *payload = payload4;
-	int len;
+	long len;
 
 	/* ignore irrelevant invocations */
 	if (test_pid != pid || !capture)
diff --git a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c
index 125d872d7981..ba48fcb98ab2 100644
--- a/tools/testing/selftests/bpf/progs/test_xdp_noinline.c
+++ b/tools/testing/selftests/bpf/progs/test_xdp_noinline.c
@@ -239,7 +239,7 @@ bool parse_udp(void *data, void *data_end,
 	udp = data + off;
 
 	if (udp + 1 > data_end)
-		return 0;
+		return false;
 	if (!is_icmp) {
 		pckt->flow.port16[0] = udp->source;
 		pckt->flow.port16[1] = udp->dest;
@@ -247,7 +247,7 @@ bool parse_udp(void *data, void *data_end,
 		pckt->flow.port16[0] = udp->dest;
 		pckt->flow.port16[1] = udp->source;
 	}
-	return 1;
+	return true;
 }
 
 static __attribute__ ((noinline))
@@ -261,7 +261,7 @@ bool parse_tcp(void *data, void *data_end,
 
 	tcp = data + off;
 	if (tcp + 1 > data_end)
-		return 0;
+		return false;
 	if (tcp->syn)
 		pckt->flags |= (1 << 1);
 	if (!is_icmp) {
@@ -271,7 +271,7 @@ bool parse_tcp(void *data, void *data_end,
 		pckt->flow.port16[0] = tcp->dest;
 		pckt->flow.port16[1] = tcp->source;
 	}
-	return 1;
+	return true;
 }
 
 static __attribute__ ((noinline))
@@ -287,7 +287,7 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval,
 	void *data;
 
 	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct ipv6hdr)))
-		return 0;
+		return false;
 	data = (void *)(long)xdp->data;
 	data_end = (void *)(long)xdp->data_end;
 	new_eth = data;
@@ -295,7 +295,7 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval,
 	old_eth = data + sizeof(struct ipv6hdr);
 	if (new_eth + 1 > data_end ||
 	    old_eth + 1 > data_end || ip6h + 1 > data_end)
-		return 0;
+		return false;
 	memcpy(new_eth->eth_dest, cval->mac, 6);
 	memcpy(new_eth->eth_source, old_eth->eth_dest, 6);
 	new_eth->eth_proto = 56710;
@@ -314,7 +314,7 @@ bool encap_v6(struct xdp_md *xdp, struct ctl_value *cval,
 	ip6h->saddr.in6_u.u6_addr32[2] = 3;
 	ip6h->saddr.in6_u.u6_addr32[3] = ip_suffix;
 	memcpy(ip6h->daddr.in6_u.u6_addr32, dst->dstv6, 16);
-	return 1;
+	return true;
 }
 
 static __attribute__ ((noinline))
@@ -335,7 +335,7 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval,
 	ip_suffix <<= 15;
 	ip_suffix ^= pckt->flow.src;
 	if (bpf_xdp_adjust_head(xdp, 0 - (int)sizeof(struct iphdr)))
-		return 0;
+		return false;
 	data = (void *)(long)xdp->data;
 	data_end = (void *)(long)xdp->data_end;
 	new_eth = data;
@@ -343,7 +343,7 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval,
 	old_eth = data + sizeof(struct iphdr);
 	if (new_eth + 1 > data_end ||
 	    old_eth + 1 > data_end || iph + 1 > data_end)
-		return 0;
+		return false;
 	memcpy(new_eth->eth_dest, cval->mac, 6);
 	memcpy(new_eth->eth_source, old_eth->eth_dest, 6);
 	new_eth->eth_proto = 8;
@@ -367,8 +367,8 @@ bool encap_v4(struct xdp_md *xdp, struct ctl_value *cval,
 		csum += *next_iph_u16++;
 	iph->check = ~((csum & 0xffff) + (csum >> 16));
 	if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct iphdr)))
-		return 0;
-	return 1;
+		return false;
+	return true;
 }
 
 static __attribute__ ((noinline))
@@ -386,10 +386,10 @@ bool decap_v6(struct xdp_md *xdp, void **data, void **data_end, bool inner_v4)
 	else
 		new_eth->eth_proto = 56710;
 	if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct ipv6hdr)))
-		return 0;
+		return false;
 	*data = (void *)(long)xdp->data;
 	*data_end = (void *)(long)xdp->data_end;
-	return 1;
+	return true;
 }
 
 static __attribute__ ((noinline))
@@ -404,10 +404,10 @@ bool decap_v4(struct xdp_md *xdp, void **data, void **data_end)
 	memcpy(new_eth->eth_dest, old_eth->eth_dest, 6);
 	new_eth->eth_proto = 8;
 	if (bpf_xdp_adjust_head(xdp, (int)sizeof(struct iphdr)))
-		return 0;
+		return false;
 	*data = (void *)(long)xdp->data;
 	*data_end = (void *)(long)xdp->data_end;
-	return 1;
+	return true;
 }
 
 static __attribute__ ((noinline))
diff --git a/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c b/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
new file mode 100644
index 000000000000..736686e903f6
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/xdp_synproxy_kern.c
@@ -0,0 +1,843 @@
+// SPDX-License-Identifier: LGPL-2.1 OR BSD-2-Clause
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#include "vmlinux.h"
+
+#include <bpf/bpf_helpers.h>
+#include <bpf/bpf_endian.h>
+#include <asm/errno.h>
+
+#define TC_ACT_OK 0
+#define TC_ACT_SHOT 2
+
+#define NSEC_PER_SEC 1000000000L
+
+#define ETH_ALEN 6
+#define ETH_P_IP 0x0800
+#define ETH_P_IPV6 0x86DD
+
+#define tcp_flag_word(tp) (((union tcp_word_hdr *)(tp))->words[3])
+
+#define IP_DF 0x4000
+#define IP_MF 0x2000
+#define IP_OFFSET 0x1fff
+
+#define NEXTHDR_TCP 6
+
+#define TCPOPT_NOP 1
+#define TCPOPT_EOL 0
+#define TCPOPT_MSS 2
+#define TCPOPT_WINDOW 3
+#define TCPOPT_SACK_PERM 4
+#define TCPOPT_TIMESTAMP 8
+
+#define TCPOLEN_MSS 4
+#define TCPOLEN_WINDOW 3
+#define TCPOLEN_SACK_PERM 2
+#define TCPOLEN_TIMESTAMP 10
+
+#define TCP_TS_HZ 1000
+#define TS_OPT_WSCALE_MASK 0xf
+#define TS_OPT_SACK (1 << 4)
+#define TS_OPT_ECN (1 << 5)
+#define TSBITS 6
+#define TSMASK (((__u32)1 << TSBITS) - 1)
+#define TCP_MAX_WSCALE 14U
+
+#define IPV4_MAXLEN 60
+#define TCP_MAXLEN 60
+
+#define DEFAULT_MSS4 1460
+#define DEFAULT_MSS6 1440
+#define DEFAULT_WSCALE 7
+#define DEFAULT_TTL 64
+#define MAX_ALLOWED_PORTS 8
+
+#define swap(a, b) \
+	do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
+
+#define __get_unaligned_t(type, ptr) ({						\
+	const struct { type x; } __attribute__((__packed__)) *__pptr = (typeof(__pptr))(ptr); \
+	__pptr->x;								\
+})
+
+#define get_unaligned(ptr) __get_unaligned_t(typeof(*(ptr)), (ptr))
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u64);
+	__uint(max_entries, 2);
+} values SEC(".maps");
+
+struct {
+	__uint(type, BPF_MAP_TYPE_ARRAY);
+	__type(key, __u32);
+	__type(value, __u16);
+	__uint(max_entries, MAX_ALLOWED_PORTS);
+} allowed_ports SEC(".maps");
+
+/* Some symbols defined in net/netfilter/nf_conntrack_bpf.c are unavailable in
+ * vmlinux.h if CONFIG_NF_CONNTRACK=m, so they are redefined locally.
+ */
+
+struct bpf_ct_opts___local {
+	s32 netns_id;
+	s32 error;
+	u8 l4proto;
+	u8 dir;
+	u8 reserved[2];
+} __attribute__((preserve_access_index));
+
+#define BPF_F_CURRENT_NETNS (-1)
+
+extern struct nf_conn *bpf_xdp_ct_lookup(struct xdp_md *xdp_ctx,
+					 struct bpf_sock_tuple *bpf_tuple,
+					 __u32 len_tuple,
+					 struct bpf_ct_opts___local *opts,
+					 __u32 len_opts) __ksym;
+
+extern struct nf_conn *bpf_skb_ct_lookup(struct __sk_buff *skb_ctx,
+					 struct bpf_sock_tuple *bpf_tuple,
+					 u32 len_tuple,
+					 struct bpf_ct_opts___local *opts,
+					 u32 len_opts) __ksym;
+
+extern void bpf_ct_release(struct nf_conn *ct) __ksym;
+
+static __always_inline void swap_eth_addr(__u8 *a, __u8 *b)
+{
+	__u8 tmp[ETH_ALEN];
+
+	__builtin_memcpy(tmp, a, ETH_ALEN);
+	__builtin_memcpy(a, b, ETH_ALEN);
+	__builtin_memcpy(b, tmp, ETH_ALEN);
+}
+
+static __always_inline __u16 csum_fold(__u32 csum)
+{
+	csum = (csum & 0xffff) + (csum >> 16);
+	csum = (csum & 0xffff) + (csum >> 16);
+	return (__u16)~csum;
+}
+
+static __always_inline __u16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+					       __u32 len, __u8 proto,
+					       __u32 csum)
+{
+	__u64 s = csum;
+
+	s += (__u32)saddr;
+	s += (__u32)daddr;
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+	s += proto + len;
+#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+	s += (proto + len) << 8;
+#else
+#error Unknown endian
+#endif
+	s = (s & 0xffffffff) + (s >> 32);
+	s = (s & 0xffffffff) + (s >> 32);
+
+	return csum_fold((__u32)s);
+}
+
+static __always_inline __u16 csum_ipv6_magic(const struct in6_addr *saddr,
+					     const struct in6_addr *daddr,
+					     __u32 len, __u8 proto, __u32 csum)
+{
+	__u64 sum = csum;
+	int i;
+
+#pragma unroll
+	for (i = 0; i < 4; i++)
+		sum += (__u32)saddr->in6_u.u6_addr32[i];
+
+#pragma unroll
+	for (i = 0; i < 4; i++)
+		sum += (__u32)daddr->in6_u.u6_addr32[i];
+
+	/* Don't combine additions to avoid 32-bit overflow. */
+	sum += bpf_htonl(len);
+	sum += bpf_htonl(proto);
+
+	sum = (sum & 0xffffffff) + (sum >> 32);
+	sum = (sum & 0xffffffff) + (sum >> 32);
+
+	return csum_fold((__u32)sum);
+}
+
+static __always_inline __u64 tcp_clock_ns(void)
+{
+	return bpf_ktime_get_ns();
+}
+
+static __always_inline __u32 tcp_ns_to_ts(__u64 ns)
+{
+	return ns / (NSEC_PER_SEC / TCP_TS_HZ);
+}
+
+static __always_inline __u32 tcp_time_stamp_raw(void)
+{
+	return tcp_ns_to_ts(tcp_clock_ns());
+}
+
+struct tcpopt_context {
+	__u8 *ptr;
+	__u8 *end;
+	void *data_end;
+	__be32 *tsecr;
+	__u8 wscale;
+	bool option_timestamp;
+	bool option_sack;
+};
+
+static int tscookie_tcpopt_parse(struct tcpopt_context *ctx)
+{
+	__u8 opcode, opsize;
+
+	if (ctx->ptr >= ctx->end)
+		return 1;
+	if (ctx->ptr >= ctx->data_end)
+		return 1;
+
+	opcode = ctx->ptr[0];
+
+	if (opcode == TCPOPT_EOL)
+		return 1;
+	if (opcode == TCPOPT_NOP) {
+		++ctx->ptr;
+		return 0;
+	}
+
+	if (ctx->ptr + 1 >= ctx->end)
+		return 1;
+	if (ctx->ptr + 1 >= ctx->data_end)
+		return 1;
+	opsize = ctx->ptr[1];
+	if (opsize < 2)
+		return 1;
+
+	if (ctx->ptr + opsize > ctx->end)
+		return 1;
+
+	switch (opcode) {
+	case TCPOPT_WINDOW:
+		if (opsize == TCPOLEN_WINDOW && ctx->ptr + TCPOLEN_WINDOW <= ctx->data_end)
+			ctx->wscale = ctx->ptr[2] < TCP_MAX_WSCALE ? ctx->ptr[2] : TCP_MAX_WSCALE;
+		break;
+	case TCPOPT_TIMESTAMP:
+		if (opsize == TCPOLEN_TIMESTAMP && ctx->ptr + TCPOLEN_TIMESTAMP <= ctx->data_end) {
+			ctx->option_timestamp = true;
+			/* Client's tsval becomes our tsecr. */
+			*ctx->tsecr = get_unaligned((__be32 *)(ctx->ptr + 2));
+		}
+		break;
+	case TCPOPT_SACK_PERM:
+		if (opsize == TCPOLEN_SACK_PERM)
+			ctx->option_sack = true;
+		break;
+	}
+
+	ctx->ptr += opsize;
+
+	return 0;
+}
+
+static int tscookie_tcpopt_parse_batch(__u32 index, void *context)
+{
+	int i;
+
+	for (i = 0; i < 7; i++)
+		if (tscookie_tcpopt_parse(context))
+			return 1;
+	return 0;
+}
+
+static __always_inline bool tscookie_init(struct tcphdr *tcp_header,
+					  __u16 tcp_len, __be32 *tsval,
+					  __be32 *tsecr, void *data_end)
+{
+	struct tcpopt_context loop_ctx = {
+		.ptr = (__u8 *)(tcp_header + 1),
+		.end = (__u8 *)tcp_header + tcp_len,
+		.data_end = data_end,
+		.tsecr = tsecr,
+		.wscale = TS_OPT_WSCALE_MASK,
+		.option_timestamp = false,
+		.option_sack = false,
+	};
+	u32 cookie;
+
+	bpf_loop(6, tscookie_tcpopt_parse_batch, &loop_ctx, 0);
+
+	if (!loop_ctx.option_timestamp)
+		return false;
+
+	cookie = tcp_time_stamp_raw() & ~TSMASK;
+	cookie |= loop_ctx.wscale & TS_OPT_WSCALE_MASK;
+	if (loop_ctx.option_sack)
+		cookie |= TS_OPT_SACK;
+	if (tcp_header->ece && tcp_header->cwr)
+		cookie |= TS_OPT_ECN;
+	*tsval = bpf_htonl(cookie);
+
+	return true;
+}
+
+static __always_inline void values_get_tcpipopts(__u16 *mss, __u8 *wscale,
+						 __u8 *ttl, bool ipv6)
+{
+	__u32 key = 0;
+	__u64 *value;
+
+	value = bpf_map_lookup_elem(&values, &key);
+	if (value && *value != 0) {
+		if (ipv6)
+			*mss = (*value >> 32) & 0xffff;
+		else
+			*mss = *value & 0xffff;
+		*wscale = (*value >> 16) & 0xf;
+		*ttl = (*value >> 24) & 0xff;
+		return;
+	}
+
+	*mss = ipv6 ? DEFAULT_MSS6 : DEFAULT_MSS4;
+	*wscale = DEFAULT_WSCALE;
+	*ttl = DEFAULT_TTL;
+}
+
+static __always_inline void values_inc_synacks(void)
+{
+	__u32 key = 1;
+	__u32 *value;
+
+	value = bpf_map_lookup_elem(&values, &key);
+	if (value)
+		__sync_fetch_and_add(value, 1);
+}
+
+static __always_inline bool check_port_allowed(__u16 port)
+{
+	__u32 i;
+
+	for (i = 0; i < MAX_ALLOWED_PORTS; i++) {
+		__u32 key = i;
+		__u16 *value;
+
+		value = bpf_map_lookup_elem(&allowed_ports, &key);
+
+		if (!value)
+			break;
+		/* 0 is a terminator value. Check it first to avoid matching on
+		 * a forbidden port == 0 and returning true.
+		 */
+		if (*value == 0)
+			break;
+
+		if (*value == port)
+			return true;
+	}
+
+	return false;
+}
+
+struct header_pointers {
+	struct ethhdr *eth;
+	struct iphdr *ipv4;
+	struct ipv6hdr *ipv6;
+	struct tcphdr *tcp;
+	__u16 tcp_len;
+};
+
+static __always_inline int tcp_dissect(void *data, void *data_end,
+				       struct header_pointers *hdr)
+{
+	hdr->eth = data;
+	if (hdr->eth + 1 > data_end)
+		return XDP_DROP;
+
+	switch (bpf_ntohs(hdr->eth->h_proto)) {
+	case ETH_P_IP:
+		hdr->ipv6 = NULL;
+
+		hdr->ipv4 = (void *)hdr->eth + sizeof(*hdr->eth);
+		if (hdr->ipv4 + 1 > data_end)
+			return XDP_DROP;
+		if (hdr->ipv4->ihl * 4 < sizeof(*hdr->ipv4))
+			return XDP_DROP;
+		if (hdr->ipv4->version != 4)
+			return XDP_DROP;
+
+		if (hdr->ipv4->protocol != IPPROTO_TCP)
+			return XDP_PASS;
+
+		hdr->tcp = (void *)hdr->ipv4 + hdr->ipv4->ihl * 4;
+		break;
+	case ETH_P_IPV6:
+		hdr->ipv4 = NULL;
+
+		hdr->ipv6 = (void *)hdr->eth + sizeof(*hdr->eth);
+		if (hdr->ipv6 + 1 > data_end)
+			return XDP_DROP;
+		if (hdr->ipv6->version != 6)
+			return XDP_DROP;
+
+		/* XXX: Extension headers are not supported and could circumvent
+		 * XDP SYN flood protection.
+		 */
+		if (hdr->ipv6->nexthdr != NEXTHDR_TCP)
+			return XDP_PASS;
+
+		hdr->tcp = (void *)hdr->ipv6 + sizeof(*hdr->ipv6);
+		break;
+	default:
+		/* XXX: VLANs will circumvent XDP SYN flood protection. */
+		return XDP_PASS;
+	}
+
+	if (hdr->tcp + 1 > data_end)
+		return XDP_DROP;
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	if (hdr->tcp_len < sizeof(*hdr->tcp))
+		return XDP_DROP;
+
+	return XDP_TX;
+}
+
+static __always_inline int tcp_lookup(void *ctx, struct header_pointers *hdr, bool xdp)
+{
+	struct bpf_ct_opts___local ct_lookup_opts = {
+		.netns_id = BPF_F_CURRENT_NETNS,
+		.l4proto = IPPROTO_TCP,
+	};
+	struct bpf_sock_tuple tup = {};
+	struct nf_conn *ct;
+	__u32 tup_size;
+
+	if (hdr->ipv4) {
+		/* TCP doesn't normally use fragments, and XDP can't reassemble
+		 * them.
+		 */
+		if ((hdr->ipv4->frag_off & bpf_htons(IP_DF | IP_MF | IP_OFFSET)) != bpf_htons(IP_DF))
+			return XDP_DROP;
+
+		tup.ipv4.saddr = hdr->ipv4->saddr;
+		tup.ipv4.daddr = hdr->ipv4->daddr;
+		tup.ipv4.sport = hdr->tcp->source;
+		tup.ipv4.dport = hdr->tcp->dest;
+		tup_size = sizeof(tup.ipv4);
+	} else if (hdr->ipv6) {
+		__builtin_memcpy(tup.ipv6.saddr, &hdr->ipv6->saddr, sizeof(tup.ipv6.saddr));
+		__builtin_memcpy(tup.ipv6.daddr, &hdr->ipv6->daddr, sizeof(tup.ipv6.daddr));
+		tup.ipv6.sport = hdr->tcp->source;
+		tup.ipv6.dport = hdr->tcp->dest;
+		tup_size = sizeof(tup.ipv6);
+	} else {
+		/* The verifier can't track that either ipv4 or ipv6 is not
+		 * NULL.
+		 */
+		return XDP_ABORTED;
+	}
+	if (xdp)
+		ct = bpf_xdp_ct_lookup(ctx, &tup, tup_size, &ct_lookup_opts, sizeof(ct_lookup_opts));
+	else
+		ct = bpf_skb_ct_lookup(ctx, &tup, tup_size, &ct_lookup_opts, sizeof(ct_lookup_opts));
+	if (ct) {
+		unsigned long status = ct->status;
+
+		bpf_ct_release(ct);
+		if (status & IPS_CONFIRMED_BIT)
+			return XDP_PASS;
+	} else if (ct_lookup_opts.error != -ENOENT) {
+		return XDP_ABORTED;
+	}
+
+	/* error == -ENOENT || !(status & IPS_CONFIRMED_BIT) */
+	return XDP_TX;
+}
+
+static __always_inline __u8 tcp_mkoptions(__be32 *buf, __be32 *tsopt, __u16 mss,
+					  __u8 wscale)
+{
+	__be32 *start = buf;
+
+	*buf++ = bpf_htonl((TCPOPT_MSS << 24) | (TCPOLEN_MSS << 16) | mss);
+
+	if (!tsopt)
+		return buf - start;
+
+	if (tsopt[0] & bpf_htonl(1 << 4))
+		*buf++ = bpf_htonl((TCPOPT_SACK_PERM << 24) |
+				   (TCPOLEN_SACK_PERM << 16) |
+				   (TCPOPT_TIMESTAMP << 8) |
+				   TCPOLEN_TIMESTAMP);
+	else
+		*buf++ = bpf_htonl((TCPOPT_NOP << 24) |
+				   (TCPOPT_NOP << 16) |
+				   (TCPOPT_TIMESTAMP << 8) |
+				   TCPOLEN_TIMESTAMP);
+	*buf++ = tsopt[0];
+	*buf++ = tsopt[1];
+
+	if ((tsopt[0] & bpf_htonl(0xf)) != bpf_htonl(0xf))
+		*buf++ = bpf_htonl((TCPOPT_NOP << 24) |
+				   (TCPOPT_WINDOW << 16) |
+				   (TCPOLEN_WINDOW << 8) |
+				   wscale);
+
+	return buf - start;
+}
+
+static __always_inline void tcp_gen_synack(struct tcphdr *tcp_header,
+					   __u32 cookie, __be32 *tsopt,
+					   __u16 mss, __u8 wscale)
+{
+	void *tcp_options;
+
+	tcp_flag_word(tcp_header) = TCP_FLAG_SYN | TCP_FLAG_ACK;
+	if (tsopt && (tsopt[0] & bpf_htonl(1 << 5)))
+		tcp_flag_word(tcp_header) |= TCP_FLAG_ECE;
+	tcp_header->doff = 5; /* doff is part of tcp_flag_word. */
+	swap(tcp_header->source, tcp_header->dest);
+	tcp_header->ack_seq = bpf_htonl(bpf_ntohl(tcp_header->seq) + 1);
+	tcp_header->seq = bpf_htonl(cookie);
+	tcp_header->window = 0;
+	tcp_header->urg_ptr = 0;
+	tcp_header->check = 0; /* Calculate checksum later. */
+
+	tcp_options = (void *)(tcp_header + 1);
+	tcp_header->doff += tcp_mkoptions(tcp_options, tsopt, mss, wscale);
+}
+
+static __always_inline void tcpv4_gen_synack(struct header_pointers *hdr,
+					     __u32 cookie, __be32 *tsopt)
+{
+	__u8 wscale;
+	__u16 mss;
+	__u8 ttl;
+
+	values_get_tcpipopts(&mss, &wscale, &ttl, false);
+
+	swap_eth_addr(hdr->eth->h_source, hdr->eth->h_dest);
+
+	swap(hdr->ipv4->saddr, hdr->ipv4->daddr);
+	hdr->ipv4->check = 0; /* Calculate checksum later. */
+	hdr->ipv4->tos = 0;
+	hdr->ipv4->id = 0;
+	hdr->ipv4->ttl = ttl;
+
+	tcp_gen_synack(hdr->tcp, cookie, tsopt, mss, wscale);
+
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	hdr->ipv4->tot_len = bpf_htons(sizeof(*hdr->ipv4) + hdr->tcp_len);
+}
+
+static __always_inline void tcpv6_gen_synack(struct header_pointers *hdr,
+					     __u32 cookie, __be32 *tsopt)
+{
+	__u8 wscale;
+	__u16 mss;
+	__u8 ttl;
+
+	values_get_tcpipopts(&mss, &wscale, &ttl, true);
+
+	swap_eth_addr(hdr->eth->h_source, hdr->eth->h_dest);
+
+	swap(hdr->ipv6->saddr, hdr->ipv6->daddr);
+	*(__be32 *)hdr->ipv6 = bpf_htonl(0x60000000);
+	hdr->ipv6->hop_limit = ttl;
+
+	tcp_gen_synack(hdr->tcp, cookie, tsopt, mss, wscale);
+
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	hdr->ipv6->payload_len = bpf_htons(hdr->tcp_len);
+}
+
+static __always_inline int syncookie_handle_syn(struct header_pointers *hdr,
+						void *ctx,
+						void *data, void *data_end,
+						bool xdp)
+{
+	__u32 old_pkt_size, new_pkt_size;
+	/* Unlike clang 10, clang 11 and 12 generate code that doesn't pass the
+	 * BPF verifier if tsopt is not volatile. Volatile forces it to store
+	 * the pointer value and use it directly, otherwise tcp_mkoptions is
+	 * (mis)compiled like this:
+	 *   if (!tsopt)
+	 *       return buf - start;
+	 *   reg = stored_return_value_of_tscookie_init;
+	 *   if (reg)
+	 *       tsopt = tsopt_buf;
+	 *   else
+	 *       tsopt = NULL;
+	 *   ...
+	 *   *buf++ = tsopt[1];
+	 * It creates a dead branch where tsopt is assigned NULL, but the
+	 * verifier can't prove it's dead and blocks the program.
+	 */
+	__be32 * volatile tsopt = NULL;
+	__be32 tsopt_buf[2] = {};
+	__u16 ip_len;
+	__u32 cookie;
+	__s64 value;
+
+	/* Checksum is not yet verified, but both checksum failure and TCP
+	 * header checks return XDP_DROP, so the order doesn't matter.
+	 */
+	if (hdr->tcp->fin || hdr->tcp->rst)
+		return XDP_DROP;
+
+	/* Issue SYN cookies on allowed ports, drop SYN packets on blocked
+	 * ports.
+	 */
+	if (!check_port_allowed(bpf_ntohs(hdr->tcp->dest)))
+		return XDP_DROP;
+
+	if (hdr->ipv4) {
+		/* Check the IPv4 and TCP checksums before creating a SYNACK. */
+		value = bpf_csum_diff(0, 0, (void *)hdr->ipv4, hdr->ipv4->ihl * 4, 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		if (csum_fold(value) != 0)
+			return XDP_DROP; /* Bad IPv4 checksum. */
+
+		value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		if (csum_tcpudp_magic(hdr->ipv4->saddr, hdr->ipv4->daddr,
+				      hdr->tcp_len, IPPROTO_TCP, value) != 0)
+			return XDP_DROP; /* Bad TCP checksum. */
+
+		ip_len = sizeof(*hdr->ipv4);
+
+		value = bpf_tcp_raw_gen_syncookie_ipv4(hdr->ipv4, hdr->tcp,
+						       hdr->tcp_len);
+	} else if (hdr->ipv6) {
+		/* Check the TCP checksum before creating a SYNACK. */
+		value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		if (csum_ipv6_magic(&hdr->ipv6->saddr, &hdr->ipv6->daddr,
+				    hdr->tcp_len, IPPROTO_TCP, value) != 0)
+			return XDP_DROP; /* Bad TCP checksum. */
+
+		ip_len = sizeof(*hdr->ipv6);
+
+		value = bpf_tcp_raw_gen_syncookie_ipv6(hdr->ipv6, hdr->tcp,
+						       hdr->tcp_len);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	if (value < 0)
+		return XDP_ABORTED;
+	cookie = (__u32)value;
+
+	if (tscookie_init((void *)hdr->tcp, hdr->tcp_len,
+			  &tsopt_buf[0], &tsopt_buf[1], data_end))
+		tsopt = tsopt_buf;
+
+	/* Check that there is enough space for a SYNACK. It also covers
+	 * the check that the destination of the __builtin_memmove below
+	 * doesn't overflow.
+	 */
+	if (data + sizeof(*hdr->eth) + ip_len + TCP_MAXLEN > data_end)
+		return XDP_ABORTED;
+
+	if (hdr->ipv4) {
+		if (hdr->ipv4->ihl * 4 > sizeof(*hdr->ipv4)) {
+			struct tcphdr *new_tcp_header;
+
+			new_tcp_header = data + sizeof(*hdr->eth) + sizeof(*hdr->ipv4);
+			__builtin_memmove(new_tcp_header, hdr->tcp, sizeof(*hdr->tcp));
+			hdr->tcp = new_tcp_header;
+
+			hdr->ipv4->ihl = sizeof(*hdr->ipv4) / 4;
+		}
+
+		tcpv4_gen_synack(hdr, cookie, tsopt);
+	} else if (hdr->ipv6) {
+		tcpv6_gen_synack(hdr, cookie, tsopt);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	/* Recalculate checksums. */
+	hdr->tcp->check = 0;
+	value = bpf_csum_diff(0, 0, (void *)hdr->tcp, hdr->tcp_len, 0);
+	if (value < 0)
+		return XDP_ABORTED;
+	if (hdr->ipv4) {
+		hdr->tcp->check = csum_tcpudp_magic(hdr->ipv4->saddr,
+						    hdr->ipv4->daddr,
+						    hdr->tcp_len,
+						    IPPROTO_TCP,
+						    value);
+
+		hdr->ipv4->check = 0;
+		value = bpf_csum_diff(0, 0, (void *)hdr->ipv4, sizeof(*hdr->ipv4), 0);
+		if (value < 0)
+			return XDP_ABORTED;
+		hdr->ipv4->check = csum_fold(value);
+	} else if (hdr->ipv6) {
+		hdr->tcp->check = csum_ipv6_magic(&hdr->ipv6->saddr,
+						  &hdr->ipv6->daddr,
+						  hdr->tcp_len,
+						  IPPROTO_TCP,
+						  value);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	/* Set the new packet size. */
+	old_pkt_size = data_end - data;
+	new_pkt_size = sizeof(*hdr->eth) + ip_len + hdr->tcp->doff * 4;
+	if (xdp) {
+		if (bpf_xdp_adjust_tail(ctx, new_pkt_size - old_pkt_size))
+			return XDP_ABORTED;
+	} else {
+		if (bpf_skb_change_tail(ctx, new_pkt_size, 0))
+			return XDP_ABORTED;
+	}
+
+	values_inc_synacks();
+
+	return XDP_TX;
+}
+
+static __always_inline int syncookie_handle_ack(struct header_pointers *hdr)
+{
+	int err;
+
+	if (hdr->tcp->rst)
+		return XDP_DROP;
+
+	if (hdr->ipv4)
+		err = bpf_tcp_raw_check_syncookie_ipv4(hdr->ipv4, hdr->tcp);
+	else if (hdr->ipv6)
+		err = bpf_tcp_raw_check_syncookie_ipv6(hdr->ipv6, hdr->tcp);
+	else
+		return XDP_ABORTED;
+	if (err)
+		return XDP_DROP;
+
+	return XDP_PASS;
+}
+
+static __always_inline int syncookie_part1(void *ctx, void *data, void *data_end,
+					   struct header_pointers *hdr, bool xdp)
+{
+	int ret;
+
+	ret = tcp_dissect(data, data_end, hdr);
+	if (ret != XDP_TX)
+		return ret;
+
+	ret = tcp_lookup(ctx, hdr, xdp);
+	if (ret != XDP_TX)
+		return ret;
+
+	/* Packet is TCP and doesn't belong to an established connection. */
+
+	if ((hdr->tcp->syn ^ hdr->tcp->ack) != 1)
+		return XDP_DROP;
+
+	/* Grow the TCP header to TCP_MAXLEN to be able to pass any hdr->tcp_len
+	 * to bpf_tcp_raw_gen_syncookie_ipv{4,6} and pass the verifier.
+	 */
+	if (xdp) {
+		if (bpf_xdp_adjust_tail(ctx, TCP_MAXLEN - hdr->tcp_len))
+			return XDP_ABORTED;
+	} else {
+		/* Without volatile the verifier throws this error:
+		 * R9 32-bit pointer arithmetic prohibited
+		 */
+		volatile u64 old_len = data_end - data;
+
+		if (bpf_skb_change_tail(ctx, old_len + TCP_MAXLEN - hdr->tcp_len, 0))
+			return XDP_ABORTED;
+	}
+
+	return XDP_TX;
+}
+
+static __always_inline int syncookie_part2(void *ctx, void *data, void *data_end,
+					   struct header_pointers *hdr, bool xdp)
+{
+	if (hdr->ipv4) {
+		hdr->eth = data;
+		hdr->ipv4 = (void *)hdr->eth + sizeof(*hdr->eth);
+		/* IPV4_MAXLEN is needed when calculating checksum.
+		 * At least sizeof(struct iphdr) is needed here to access ihl.
+		 */
+		if ((void *)hdr->ipv4 + IPV4_MAXLEN > data_end)
+			return XDP_ABORTED;
+		hdr->tcp = (void *)hdr->ipv4 + hdr->ipv4->ihl * 4;
+	} else if (hdr->ipv6) {
+		hdr->eth = data;
+		hdr->ipv6 = (void *)hdr->eth + sizeof(*hdr->eth);
+		hdr->tcp = (void *)hdr->ipv6 + sizeof(*hdr->ipv6);
+	} else {
+		return XDP_ABORTED;
+	}
+
+	if ((void *)hdr->tcp + TCP_MAXLEN > data_end)
+		return XDP_ABORTED;
+
+	/* We run out of registers, tcp_len gets spilled to the stack, and the
+	 * verifier forgets its min and max values checked above in tcp_dissect.
+	 */
+	hdr->tcp_len = hdr->tcp->doff * 4;
+	if (hdr->tcp_len < sizeof(*hdr->tcp))
+		return XDP_ABORTED;
+
+	return hdr->tcp->syn ? syncookie_handle_syn(hdr, ctx, data, data_end, xdp) :
+			       syncookie_handle_ack(hdr);
+}
+
+SEC("xdp")
+int syncookie_xdp(struct xdp_md *ctx)
+{
+	void *data_end = (void *)(long)ctx->data_end;
+	void *data = (void *)(long)ctx->data;
+	struct header_pointers hdr;
+	int ret;
+
+	ret = syncookie_part1(ctx, data, data_end, &hdr, true);
+	if (ret != XDP_TX)
+		return ret;
+
+	data_end = (void *)(long)ctx->data_end;
+	data = (void *)(long)ctx->data;
+
+	return syncookie_part2(ctx, data, data_end, &hdr, true);
+}
+
+SEC("tc")
+int syncookie_tc(struct __sk_buff *skb)
+{
+	void *data_end = (void *)(long)skb->data_end;
+	void *data = (void *)(long)skb->data;
+	struct header_pointers hdr;
+	int ret;
+
+	ret = syncookie_part1(skb, data, data_end, &hdr, false);
+	if (ret != XDP_TX)
+		return ret == XDP_PASS ? TC_ACT_OK : TC_ACT_SHOT;
+
+	data_end = (void *)(long)skb->data_end;
+	data = (void *)(long)skb->data;
+
+	ret = syncookie_part2(skb, data, data_end, &hdr, false);
+	switch (ret) {
+	case XDP_PASS:
+		return TC_ACT_OK;
+	case XDP_TX:
+		return bpf_redirect(skb->ifindex, 0);
+	default:
+		return TC_ACT_SHOT;
+	}
+}
+
+char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/test_bpftool_synctypes.py b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
index c0e7acd698ed..a6410bebe603 100755
--- a/tools/testing/selftests/bpf/test_bpftool_synctypes.py
+++ b/tools/testing/selftests/bpf/test_bpftool_synctypes.py
@@ -58,7 +58,7 @@ class BlockParser(object):
 
 class ArrayParser(BlockParser):
     """
-    A parser for extracting dicionaries of values from some BPF-related arrays.
+    A parser for extracting a set of values from some BPF-related arrays.
     @reader: a pointer to the open file to parse
     @array_name: name of the array to parse
     """
@@ -66,7 +66,7 @@ class ArrayParser(BlockParser):
 
     def __init__(self, reader, array_name):
         self.array_name = array_name
-        self.start_marker = re.compile(f'(static )?const char \* const {self.array_name}\[.*\] = {{\n')
+        self.start_marker = re.compile(f'(static )?const bool {self.array_name}\[.*\] = {{\n')
         super().__init__(reader)
 
     def search_block(self):
@@ -80,15 +80,15 @@ class ArrayParser(BlockParser):
         Parse a block and return data as a dictionary. Items to extract must be
         on separate lines in the file.
         """
-        pattern = re.compile('\[(BPF_\w*)\]\s*= "(.*)",?$')
-        entries = {}
+        pattern = re.compile('\[(BPF_\w*)\]\s*= (true|false),?$')
+        entries = set()
         while True:
             line = self.reader.readline()
             if line == '' or re.match(self.end_marker, line):
                 break
             capture = pattern.search(line)
             if capture:
-                entries[capture.group(1)] = capture.group(2)
+                entries |= {capture.group(1)}
         return entries
 
 class InlineListParser(BlockParser):
@@ -115,7 +115,7 @@ class InlineListParser(BlockParser):
 class FileExtractor(object):
     """
     A generic reader for extracting data from a given file. This class contains
-    several helper methods that wrap arround parser objects to extract values
+    several helper methods that wrap around parser objects to extract values
     from different structures.
     This class does not offer a way to set a filename, which is expected to be
     defined in children classes.
@@ -139,21 +139,19 @@ class FileExtractor(object):
 
     def get_types_from_array(self, array_name):
         """
-        Search for and parse an array associating names to BPF_* enum members,
-        for example:
+        Search for and parse a list of allowed BPF_* enum members, for example:
 
-            const char * const prog_type_name[] = {
-                    [BPF_PROG_TYPE_UNSPEC]                  = "unspec",
-                    [BPF_PROG_TYPE_SOCKET_FILTER]           = "socket_filter",
-                    [BPF_PROG_TYPE_KPROBE]                  = "kprobe",
+            const bool prog_type_name[] = {
+                    [BPF_PROG_TYPE_UNSPEC]                  = true,
+                    [BPF_PROG_TYPE_SOCKET_FILTER]           = true,
+                    [BPF_PROG_TYPE_KPROBE]                  = true,
             };
 
-        Return a dictionary with the enum member names as keys and the
-        associated names as values, for example:
+        Return a set of the enum members, for example:
 
-            {'BPF_PROG_TYPE_UNSPEC': 'unspec',
-             'BPF_PROG_TYPE_SOCKET_FILTER': 'socket_filter',
-             'BPF_PROG_TYPE_KPROBE': 'kprobe'}
+            {'BPF_PROG_TYPE_UNSPEC',
+             'BPF_PROG_TYPE_SOCKET_FILTER',
+             'BPF_PROG_TYPE_KPROBE'}
 
         @array_name: name of the array to parse
         """
@@ -186,6 +184,27 @@ class FileExtractor(object):
         parser.search_block(start_marker)
         return parser.parse(pattern, end_marker)
 
+    def make_enum_map(self, names, enum_prefix):
+        """
+        Search for and parse an enum containing BPF_* members, just as get_enum
+        does. However, instead of just returning a set of the variant names,
+        also generate a textual representation from them by (assuming and)
+        removing a provided prefix and lowercasing the remainder. Then return a
+        dict mapping from name to textual representation.
+
+        @enum_values: a set of enum values; e.g., as retrieved by get_enum
+        @enum_prefix: the prefix to remove from each of the variants to infer
+        textual representation
+        """
+        mapping = {}
+        for name in names:
+            if not name.startswith(enum_prefix):
+                raise Exception(f"enum variant {name} does not start with {enum_prefix}")
+            text = name[len(enum_prefix):].lower()
+            mapping[name] = text
+
+        return mapping
+
     def __get_description_list(self, start_marker, pattern, end_marker):
         parser = InlineListParser(self.reader)
         parser.search_block(start_marker)
@@ -333,11 +352,9 @@ class ProgFileExtractor(SourceFileExtractor):
     """
     filename = os.path.join(BPFTOOL_DIR, 'prog.c')
 
-    def get_prog_types(self):
-        return self.get_types_from_array('prog_type_name')
-
     def get_attach_types(self):
-        return self.get_types_from_array('attach_type_strings')
+        types = self.get_types_from_array('attach_types')
+        return self.make_enum_map(types, 'BPF_')
 
     def get_prog_attach_help(self):
         return self.get_help_list('ATTACH_TYPE')
@@ -348,9 +365,6 @@ class MapFileExtractor(SourceFileExtractor):
     """
     filename = os.path.join(BPFTOOL_DIR, 'map.c')
 
-    def get_map_types(self):
-        return self.get_types_from_array('map_type_name')
-
     def get_map_help(self):
         return self.get_help_list('TYPE')
 
@@ -363,30 +377,6 @@ class CgroupFileExtractor(SourceFileExtractor):
     def get_prog_attach_help(self):
         return self.get_help_list('ATTACH_TYPE')
 
-class CommonFileExtractor(SourceFileExtractor):
-    """
-    An extractor for bpftool's common.c.
-    """
-    filename = os.path.join(BPFTOOL_DIR, 'common.c')
-
-    def __init__(self):
-        super().__init__()
-        self.attach_types = {}
-
-    def get_attach_types(self):
-        if not self.attach_types:
-            self.attach_types = self.get_types_from_array('attach_type_name')
-        return self.attach_types
-
-    def get_cgroup_attach_types(self):
-        if not self.attach_types:
-            self.get_attach_types()
-        cgroup_types = {}
-        for (key, value) in self.attach_types.items():
-            if key.find('BPF_CGROUP') != -1:
-                cgroup_types[key] = value
-        return cgroup_types
-
 class GenericSourceExtractor(SourceFileExtractor):
     """
     An extractor for generic source code files.
@@ -403,14 +393,28 @@ class BpfHeaderExtractor(FileExtractor):
     """
     filename = os.path.join(INCLUDE_DIR, 'uapi/linux/bpf.h')
 
+    def __init__(self):
+        super().__init__()
+        self.attach_types = {}
+
     def get_prog_types(self):
         return self.get_enum('bpf_prog_type')
 
-    def get_map_types(self):
-        return self.get_enum('bpf_map_type')
+    def get_map_type_map(self):
+        names = self.get_enum('bpf_map_type')
+        return self.make_enum_map(names, 'BPF_MAP_TYPE_')
 
-    def get_attach_types(self):
-        return self.get_enum('bpf_attach_type')
+    def get_attach_type_map(self):
+        if not self.attach_types:
+          names = self.get_enum('bpf_attach_type')
+          self.attach_types = self.make_enum_map(names, 'BPF_')
+        return self.attach_types
+
+    def get_cgroup_attach_type_map(self):
+        if not self.attach_types:
+            self.get_attach_type_map()
+        return {name: text for name, text in self.attach_types.items()
+            if name.startswith('BPF_CGROUP')}
 
 class ManPageExtractor(FileExtractor):
     """
@@ -467,12 +471,6 @@ class BashcompExtractor(FileExtractor):
     def get_prog_attach_types(self):
         return self.get_bashcomp_list('BPFTOOL_PROG_ATTACH_TYPES')
 
-    def get_map_types(self):
-        return self.get_bashcomp_list('BPFTOOL_MAP_CREATE_TYPES')
-
-    def get_cgroup_attach_types(self):
-        return self.get_bashcomp_list('BPFTOOL_CGROUP_ATTACH_TYPES')
-
 def verify(first_set, second_set, message):
     """
     Print all values that differ between two sets.
@@ -495,21 +493,12 @@ def main():
     """)
     args = argParser.parse_args()
 
-    # Map types (enum)
-
     bpf_info = BpfHeaderExtractor()
-    ref = bpf_info.get_map_types()
-
-    map_info = MapFileExtractor()
-    source_map_items = map_info.get_map_types()
-    map_types_enum = set(source_map_items.keys())
-
-    verify(ref, map_types_enum,
-            f'Comparing BPF header (enum bpf_map_type) and {MapFileExtractor.filename} (map_type_name):')
 
     # Map types (names)
 
-    source_map_types = set(source_map_items.values())
+    map_info = MapFileExtractor()
+    source_map_types = set(bpf_info.get_map_type_map().values())
     source_map_types.discard('unspec')
 
     help_map_types = map_info.get_map_help()
@@ -521,41 +510,16 @@ def main():
     man_map_types = man_map_info.get_map_types()
     man_map_info.close()
 
-    bashcomp_info = BashcompExtractor()
-    bashcomp_map_types = bashcomp_info.get_map_types()
-
     verify(source_map_types, help_map_types,
-            f'Comparing {MapFileExtractor.filename} (map_type_name) and {MapFileExtractor.filename} (do_help() TYPE):')
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_map_type) and {MapFileExtractor.filename} (do_help() TYPE):')
     verify(source_map_types, man_map_types,
-            f'Comparing {MapFileExtractor.filename} (map_type_name) and {ManMapExtractor.filename} (TYPE):')
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_map_type) and {ManMapExtractor.filename} (TYPE):')
     verify(help_map_options, man_map_options,
             f'Comparing {MapFileExtractor.filename} (do_help() OPTIONS) and {ManMapExtractor.filename} (OPTIONS):')
-    verify(source_map_types, bashcomp_map_types,
-            f'Comparing {MapFileExtractor.filename} (map_type_name) and {BashcompExtractor.filename} (BPFTOOL_MAP_CREATE_TYPES):')
-
-    # Program types (enum)
-
-    ref = bpf_info.get_prog_types()
-
-    prog_info = ProgFileExtractor()
-    prog_types = set(prog_info.get_prog_types().keys())
-
-    verify(ref, prog_types,
-            f'Comparing BPF header (enum bpf_prog_type) and {ProgFileExtractor.filename} (prog_type_name):')
-
-    # Attach types (enum)
-
-    ref = bpf_info.get_attach_types()
-    bpf_info.close()
-
-    common_info = CommonFileExtractor()
-    attach_types = common_info.get_attach_types()
-
-    verify(ref, attach_types,
-            f'Comparing BPF header (enum bpf_attach_type) and {CommonFileExtractor.filename} (attach_type_name):')
 
     # Attach types (names)
 
+    prog_info = ProgFileExtractor()
     source_prog_attach_types = set(prog_info.get_attach_types().values())
 
     help_prog_attach_types = prog_info.get_prog_attach_help()
@@ -567,22 +531,23 @@ def main():
     man_prog_attach_types = man_prog_info.get_attach_types()
     man_prog_info.close()
 
-    bashcomp_info.reset_read() # We stopped at map types, rewind
+
+    bashcomp_info = BashcompExtractor()
     bashcomp_prog_attach_types = bashcomp_info.get_prog_attach_types()
+    bashcomp_info.close()
 
     verify(source_prog_attach_types, help_prog_attach_types,
-            f'Comparing {ProgFileExtractor.filename} (attach_type_strings) and {ProgFileExtractor.filename} (do_help() ATTACH_TYPE):')
+            f'Comparing {ProgFileExtractor.filename} (bpf_attach_type) and {ProgFileExtractor.filename} (do_help() ATTACH_TYPE):')
     verify(source_prog_attach_types, man_prog_attach_types,
-            f'Comparing {ProgFileExtractor.filename} (attach_type_strings) and {ManProgExtractor.filename} (ATTACH_TYPE):')
+            f'Comparing {ProgFileExtractor.filename} (bpf_attach_type) and {ManProgExtractor.filename} (ATTACH_TYPE):')
     verify(help_prog_options, man_prog_options,
             f'Comparing {ProgFileExtractor.filename} (do_help() OPTIONS) and {ManProgExtractor.filename} (OPTIONS):')
     verify(source_prog_attach_types, bashcomp_prog_attach_types,
-            f'Comparing {ProgFileExtractor.filename} (attach_type_strings) and {BashcompExtractor.filename} (BPFTOOL_PROG_ATTACH_TYPES):')
+            f'Comparing {ProgFileExtractor.filename} (bpf_attach_type) and {BashcompExtractor.filename} (BPFTOOL_PROG_ATTACH_TYPES):')
 
     # Cgroup attach types
-
-    source_cgroup_attach_types = set(common_info.get_cgroup_attach_types().values())
-    common_info.close()
+    source_cgroup_attach_types = set(bpf_info.get_cgroup_attach_type_map().values())
+    bpf_info.close()
 
     cgroup_info = CgroupFileExtractor()
     help_cgroup_attach_types = cgroup_info.get_prog_attach_help()
@@ -594,17 +559,12 @@ def main():
     man_cgroup_attach_types = man_cgroup_info.get_attach_types()
     man_cgroup_info.close()
 
-    bashcomp_cgroup_attach_types = bashcomp_info.get_cgroup_attach_types()
-    bashcomp_info.close()
-
     verify(source_cgroup_attach_types, help_cgroup_attach_types,
-            f'Comparing {CommonFileExtractor.filename} (attach_type_strings) and {CgroupFileExtractor.filename} (do_help() ATTACH_TYPE):')
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_attach_type) and {CgroupFileExtractor.filename} (do_help() ATTACH_TYPE):')
     verify(source_cgroup_attach_types, man_cgroup_attach_types,
-            f'Comparing {CommonFileExtractor.filename} (attach_type_strings) and {ManCgroupExtractor.filename} (ATTACH_TYPE):')
+            f'Comparing {BpfHeaderExtractor.filename} (bpf_attach_type) and {ManCgroupExtractor.filename} (ATTACH_TYPE):')
     verify(help_cgroup_options, man_cgroup_options,
             f'Comparing {CgroupFileExtractor.filename} (do_help() OPTIONS) and {ManCgroupExtractor.filename} (OPTIONS):')
-    verify(source_cgroup_attach_types, bashcomp_cgroup_attach_types,
-            f'Comparing {CommonFileExtractor.filename} (attach_type_strings) and {BashcompExtractor.filename} (BPFTOOL_CGROUP_ATTACH_TYPES):')
 
     # Options for remaining commands
 
diff --git a/tools/testing/selftests/bpf/test_btf.h b/tools/testing/selftests/bpf/test_btf.h
index 128989bed8b7..fb4f4714eeb4 100644
--- a/tools/testing/selftests/bpf/test_btf.h
+++ b/tools/testing/selftests/bpf/test_btf.h
@@ -4,6 +4,8 @@
 #ifndef _TEST_BTF_H
 #define _TEST_BTF_H
 
+#define BTF_END_RAW 0xdeadbeef
+
 #define BTF_INFO_ENC(kind, kind_flag, vlen)			\
 	((!!(kind_flag) << 31) | ((kind) << 24) | ((vlen) & BTF_MAX_VLEN))
 
@@ -39,6 +41,7 @@
 #define BTF_MEMBER_ENC(name, type, bits_offset)	\
 	(name), (type), (bits_offset)
 #define BTF_ENUM_ENC(name, val) (name), (val)
+#define BTF_ENUM64_ENC(name, val_lo32, val_hi32) (name), (val_lo32), (val_hi32)
 #define BTF_MEMBER_OFFSET(bitfield_size, bits_offset) \
 	((bitfield_size) << 24 | (bits_offset))
 
diff --git a/tools/testing/selftests/bpf/test_progs.c b/tools/testing/selftests/bpf/test_progs.c
index c639f2e56fc5..3561c97701f2 100644
--- a/tools/testing/selftests/bpf/test_progs.c
+++ b/tools/testing/selftests/bpf/test_progs.c
@@ -1604,11 +1604,8 @@ int main(int argc, char **argv)
 		struct prog_test_def *test = &prog_test_defs[i];
 
 		test->test_num = i + 1;
-		if (should_run(&env.test_selector,
-				test->test_num, test->test_name))
-			test->should_run = true;
-		else
-			test->should_run = false;
+		test->should_run = should_run(&env.test_selector,
+					      test->test_num, test->test_name);
 
 		if ((test->run_test == NULL && test->run_serial_test == NULL) ||
 		    (test->run_test != NULL && test->run_serial_test != NULL)) {
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 372579c9f45e..f9d553fbf68a 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -51,12 +51,24 @@
 #endif
 
 #define MAX_INSNS	BPF_MAXINSNS
+#define MAX_EXPECTED_INSNS	32
+#define MAX_UNEXPECTED_INSNS	32
 #define MAX_TEST_INSNS	1000000
 #define MAX_FIXUPS	8
 #define MAX_NR_MAPS	23
 #define MAX_TEST_RUNS	8
 #define POINTER_VALUE	0xcafe4all
 #define TEST_DATA_LEN	64
+#define MAX_FUNC_INFOS	8
+#define MAX_BTF_STRINGS	256
+#define MAX_BTF_TYPES	256
+
+#define INSN_OFF_MASK	((__s16)0xFFFF)
+#define INSN_IMM_MASK	((__s32)0xFFFFFFFF)
+#define SKIP_INSNS()	BPF_RAW_INSN(0xde, 0xa, 0xd, 0xbeef, 0xdeadbeef)
+
+#define DEFAULT_LIBBPF_LOG_LEVEL	4
+#define VERBOSE_LIBBPF_LOG_LEVEL	1
 
 #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS	(1 << 0)
 #define F_LOAD_WITH_STRICT_ALIGNMENT		(1 << 1)
@@ -79,6 +91,23 @@ struct bpf_test {
 	const char *descr;
 	struct bpf_insn	insns[MAX_INSNS];
 	struct bpf_insn	*fill_insns;
+	/* If specified, test engine looks for this sequence of
+	 * instructions in the BPF program after loading. Allows to
+	 * test rewrites applied by verifier.  Use values
+	 * INSN_OFF_MASK and INSN_IMM_MASK to mask `off` and `imm`
+	 * fields if content does not matter.  The test case fails if
+	 * specified instructions are not found.
+	 *
+	 * The sequence could be split into sub-sequences by adding
+	 * SKIP_INSNS instruction at the end of each sub-sequence. In
+	 * such case sub-sequences are searched for one after another.
+	 */
+	struct bpf_insn expected_insns[MAX_EXPECTED_INSNS];
+	/* If specified, test engine applies same pattern matching
+	 * logic as for `expected_insns`. If the specified pattern is
+	 * matched test case is marked as failed.
+	 */
+	struct bpf_insn unexpected_insns[MAX_UNEXPECTED_INSNS];
 	int fixup_map_hash_8b[MAX_FIXUPS];
 	int fixup_map_hash_48b[MAX_FIXUPS];
 	int fixup_map_hash_16b[MAX_FIXUPS];
@@ -135,6 +164,14 @@ struct bpf_test {
 	};
 	enum bpf_attach_type expected_attach_type;
 	const char *kfunc;
+	struct bpf_func_info func_info[MAX_FUNC_INFOS];
+	int func_info_cnt;
+	char btf_strings[MAX_BTF_STRINGS];
+	/* A set of BTF types to load when specified,
+	 * use macro definitions from test_btf.h,
+	 * must end with BTF_END_RAW
+	 */
+	__u32 btf_types[MAX_BTF_TYPES];
 };
 
 /* Note we want this to be 64 bit aligned so that the end of our array is
@@ -388,6 +425,45 @@ static void bpf_fill_torturous_jumps(struct bpf_test *self)
 	}
 }
 
+static void bpf_fill_big_prog_with_loop_1(struct bpf_test *self)
+{
+	struct bpf_insn *insn = self->fill_insns;
+	/* This test was added to catch a specific use after free
+	 * error, which happened upon BPF program reallocation.
+	 * Reallocation is handled by core.c:bpf_prog_realloc, which
+	 * reuses old memory if page boundary is not crossed. The
+	 * value of `len` is chosen to cross this boundary on bpf_loop
+	 * patching.
+	 */
+	const int len = getpagesize() - 25;
+	int callback_load_idx;
+	int callback_idx;
+	int i = 0;
+
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1);
+	callback_load_idx = i;
+	insn[i++] = BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW,
+				 BPF_REG_2, BPF_PSEUDO_FUNC, 0,
+				 777 /* filled below */);
+	insn[i++] = BPF_RAW_INSN(0, 0, 0, 0, 0);
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0);
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0);
+	insn[i++] = BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop);
+
+	while (i < len - 3)
+		insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0);
+	insn[i++] = BPF_EXIT_INSN();
+
+	callback_idx = i;
+	insn[i++] = BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0);
+	insn[i++] = BPF_EXIT_INSN();
+
+	insn[callback_load_idx].imm = callback_idx - callback_load_idx - 1;
+	self->func_info[1].insn_off = callback_idx;
+	self->prog_len = i;
+	assert(i == len);
+}
+
 /* BPF_SK_LOOKUP contains 13 instructions, if you need to fix up maps */
 #define BPF_SK_LOOKUP(func)						\
 	/* struct bpf_sock_tuple tuple = {} */				\
@@ -664,34 +740,66 @@ static __u32 btf_raw_types[] = {
 	BTF_MEMBER_ENC(71, 13, 128), /* struct prog_test_member __kptr_ref *ptr; */
 };
 
-static int load_btf(void)
+static char bpf_vlog[UINT_MAX >> 8];
+
+static int load_btf_spec(__u32 *types, int types_len,
+			 const char *strings, int strings_len)
 {
 	struct btf_header hdr = {
 		.magic = BTF_MAGIC,
 		.version = BTF_VERSION,
 		.hdr_len = sizeof(struct btf_header),
-		.type_len = sizeof(btf_raw_types),
-		.str_off = sizeof(btf_raw_types),
-		.str_len = sizeof(btf_str_sec),
+		.type_len = types_len,
+		.str_off = types_len,
+		.str_len = strings_len,
 	};
 	void *ptr, *raw_btf;
 	int btf_fd;
+	LIBBPF_OPTS(bpf_btf_load_opts, opts,
+		    .log_buf = bpf_vlog,
+		    .log_size = sizeof(bpf_vlog),
+		    .log_level = (verbose
+				  ? VERBOSE_LIBBPF_LOG_LEVEL
+				  : DEFAULT_LIBBPF_LOG_LEVEL),
+	);
 
-	ptr = raw_btf = malloc(sizeof(hdr) + sizeof(btf_raw_types) +
-			       sizeof(btf_str_sec));
+	raw_btf = malloc(sizeof(hdr) + types_len + strings_len);
 
+	ptr = raw_btf;
 	memcpy(ptr, &hdr, sizeof(hdr));
 	ptr += sizeof(hdr);
-	memcpy(ptr, btf_raw_types, hdr.type_len);
+	memcpy(ptr, types, hdr.type_len);
 	ptr += hdr.type_len;
-	memcpy(ptr, btf_str_sec, hdr.str_len);
+	memcpy(ptr, strings, hdr.str_len);
 	ptr += hdr.str_len;
 
-	btf_fd = bpf_btf_load(raw_btf, ptr - raw_btf, NULL);
-	free(raw_btf);
+	btf_fd = bpf_btf_load(raw_btf, ptr - raw_btf, &opts);
 	if (btf_fd < 0)
-		return -1;
-	return btf_fd;
+		printf("Failed to load BTF spec: '%s'\n", strerror(errno));
+
+	free(raw_btf);
+
+	return btf_fd < 0 ? -1 : btf_fd;
+}
+
+static int load_btf(void)
+{
+	return load_btf_spec(btf_raw_types, sizeof(btf_raw_types),
+			     btf_str_sec, sizeof(btf_str_sec));
+}
+
+static int load_btf_for_test(struct bpf_test *test)
+{
+	int types_num = 0;
+
+	while (types_num < MAX_BTF_TYPES &&
+	       test->btf_types[types_num] != BTF_END_RAW)
+		++types_num;
+
+	int types_len = types_num * sizeof(test->btf_types[0]);
+
+	return load_btf_spec(test->btf_types, types_len,
+			     test->btf_strings, sizeof(test->btf_strings));
 }
 
 static int create_map_spin_lock(void)
@@ -770,8 +878,6 @@ static int create_map_kptr(void)
 	return fd;
 }
 
-static char bpf_vlog[UINT_MAX >> 8];
-
 static void do_test_fixup(struct bpf_test *test, enum bpf_prog_type prog_type,
 			  struct bpf_insn *prog, int *map_fds)
 {
@@ -1126,10 +1232,218 @@ static bool cmp_str_seq(const char *log, const char *exp)
 	return true;
 }
 
+static int get_xlated_program(int fd_prog, struct bpf_insn **buf, int *cnt)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	__u32 xlated_prog_len;
+	__u32 buf_element_size = sizeof(struct bpf_insn);
+
+	if (bpf_obj_get_info_by_fd(fd_prog, &info, &info_len)) {
+		perror("bpf_obj_get_info_by_fd failed");
+		return -1;
+	}
+
+	xlated_prog_len = info.xlated_prog_len;
+	if (xlated_prog_len % buf_element_size) {
+		printf("Program length %d is not multiple of %d\n",
+		       xlated_prog_len, buf_element_size);
+		return -1;
+	}
+
+	*cnt = xlated_prog_len / buf_element_size;
+	*buf = calloc(*cnt, buf_element_size);
+	if (!buf) {
+		perror("can't allocate xlated program buffer");
+		return -ENOMEM;
+	}
+
+	bzero(&info, sizeof(info));
+	info.xlated_prog_len = xlated_prog_len;
+	info.xlated_prog_insns = (__u64)*buf;
+	if (bpf_obj_get_info_by_fd(fd_prog, &info, &info_len)) {
+		perror("second bpf_obj_get_info_by_fd failed");
+		goto out_free_buf;
+	}
+
+	return 0;
+
+out_free_buf:
+	free(*buf);
+	return -1;
+}
+
+static bool is_null_insn(struct bpf_insn *insn)
+{
+	struct bpf_insn null_insn = {};
+
+	return memcmp(insn, &null_insn, sizeof(null_insn)) == 0;
+}
+
+static bool is_skip_insn(struct bpf_insn *insn)
+{
+	struct bpf_insn skip_insn = SKIP_INSNS();
+
+	return memcmp(insn, &skip_insn, sizeof(skip_insn)) == 0;
+}
+
+static int null_terminated_insn_len(struct bpf_insn *seq, int max_len)
+{
+	int i;
+
+	for (i = 0; i < max_len; ++i) {
+		if (is_null_insn(&seq[i]))
+			return i;
+	}
+	return max_len;
+}
+
+static bool compare_masked_insn(struct bpf_insn *orig, struct bpf_insn *masked)
+{
+	struct bpf_insn orig_masked;
+
+	memcpy(&orig_masked, orig, sizeof(orig_masked));
+	if (masked->imm == INSN_IMM_MASK)
+		orig_masked.imm = INSN_IMM_MASK;
+	if (masked->off == INSN_OFF_MASK)
+		orig_masked.off = INSN_OFF_MASK;
+
+	return memcmp(&orig_masked, masked, sizeof(orig_masked)) == 0;
+}
+
+static int find_insn_subseq(struct bpf_insn *seq, struct bpf_insn *subseq,
+			    int seq_len, int subseq_len)
+{
+	int i, j;
+
+	if (subseq_len > seq_len)
+		return -1;
+
+	for (i = 0; i < seq_len - subseq_len + 1; ++i) {
+		bool found = true;
+
+		for (j = 0; j < subseq_len; ++j) {
+			if (!compare_masked_insn(&seq[i + j], &subseq[j])) {
+				found = false;
+				break;
+			}
+		}
+		if (found)
+			return i;
+	}
+
+	return -1;
+}
+
+static int find_skip_insn_marker(struct bpf_insn *seq, int len)
+{
+	int i;
+
+	for (i = 0; i < len; ++i)
+		if (is_skip_insn(&seq[i]))
+			return i;
+
+	return -1;
+}
+
+/* Return true if all sub-sequences in `subseqs` could be found in
+ * `seq` one after another. Sub-sequences are separated by a single
+ * nil instruction.
+ */
+static bool find_all_insn_subseqs(struct bpf_insn *seq, struct bpf_insn *subseqs,
+				  int seq_len, int max_subseqs_len)
+{
+	int subseqs_len = null_terminated_insn_len(subseqs, max_subseqs_len);
+
+	while (subseqs_len > 0) {
+		int skip_idx = find_skip_insn_marker(subseqs, subseqs_len);
+		int cur_subseq_len = skip_idx < 0 ? subseqs_len : skip_idx;
+		int subseq_idx = find_insn_subseq(seq, subseqs,
+						  seq_len, cur_subseq_len);
+
+		if (subseq_idx < 0)
+			return false;
+		seq += subseq_idx + cur_subseq_len;
+		seq_len -= subseq_idx + cur_subseq_len;
+		subseqs += cur_subseq_len + 1;
+		subseqs_len -= cur_subseq_len + 1;
+	}
+
+	return true;
+}
+
+static void print_insn(struct bpf_insn *buf, int cnt)
+{
+	int i;
+
+	printf("  addr  op d s off  imm\n");
+	for (i = 0; i < cnt; ++i) {
+		struct bpf_insn *insn = &buf[i];
+
+		if (is_null_insn(insn))
+			break;
+
+		if (is_skip_insn(insn))
+			printf("  ...\n");
+		else
+			printf("  %04x: %02x %1x %x %04hx %08x\n",
+			       i, insn->code, insn->dst_reg,
+			       insn->src_reg, insn->off, insn->imm);
+	}
+}
+
+static bool check_xlated_program(struct bpf_test *test, int fd_prog)
+{
+	struct bpf_insn *buf;
+	int cnt;
+	bool result = true;
+	bool check_expected = !is_null_insn(test->expected_insns);
+	bool check_unexpected = !is_null_insn(test->unexpected_insns);
+
+	if (!check_expected && !check_unexpected)
+		goto out;
+
+	if (get_xlated_program(fd_prog, &buf, &cnt)) {
+		printf("FAIL: can't get xlated program\n");
+		result = false;
+		goto out;
+	}
+
+	if (check_expected &&
+	    !find_all_insn_subseqs(buf, test->expected_insns,
+				   cnt, MAX_EXPECTED_INSNS)) {
+		printf("FAIL: can't find expected subsequence of instructions\n");
+		result = false;
+		if (verbose) {
+			printf("Program:\n");
+			print_insn(buf, cnt);
+			printf("Expected subsequence:\n");
+			print_insn(test->expected_insns, MAX_EXPECTED_INSNS);
+		}
+	}
+
+	if (check_unexpected &&
+	    find_all_insn_subseqs(buf, test->unexpected_insns,
+				  cnt, MAX_UNEXPECTED_INSNS)) {
+		printf("FAIL: found unexpected subsequence of instructions\n");
+		result = false;
+		if (verbose) {
+			printf("Program:\n");
+			print_insn(buf, cnt);
+			printf("Un-expected subsequence:\n");
+			print_insn(test->unexpected_insns, MAX_UNEXPECTED_INSNS);
+		}
+	}
+
+	free(buf);
+ out:
+	return result;
+}
+
 static void do_test_single(struct bpf_test *test, bool unpriv,
 			   int *passes, int *errors)
 {
-	int fd_prog, expected_ret, alignment_prevented_execution;
+	int fd_prog, btf_fd, expected_ret, alignment_prevented_execution;
 	int prog_len, prog_type = test->prog_type;
 	struct bpf_insn *prog = test->insns;
 	LIBBPF_OPTS(bpf_prog_load_opts, opts);
@@ -1141,8 +1455,10 @@ static void do_test_single(struct bpf_test *test, bool unpriv,
 	__u32 pflags;
 	int i, err;
 
+	fd_prog = -1;
 	for (i = 0; i < MAX_NR_MAPS; i++)
 		map_fds[i] = -1;
+	btf_fd = -1;
 
 	if (!prog_type)
 		prog_type = BPF_PROG_TYPE_SOCKET_FILTER;
@@ -1175,11 +1491,11 @@ static void do_test_single(struct bpf_test *test, bool unpriv,
 
 	opts.expected_attach_type = test->expected_attach_type;
 	if (verbose)
-		opts.log_level = 1;
+		opts.log_level = VERBOSE_LIBBPF_LOG_LEVEL;
 	else if (expected_ret == VERBOSE_ACCEPT)
 		opts.log_level = 2;
 	else
-		opts.log_level = 4;
+		opts.log_level = DEFAULT_LIBBPF_LOG_LEVEL;
 	opts.prog_flags = pflags;
 
 	if (prog_type == BPF_PROG_TYPE_TRACING && test->kfunc) {
@@ -1197,6 +1513,19 @@ static void do_test_single(struct bpf_test *test, bool unpriv,
 		opts.attach_btf_id = attach_btf_id;
 	}
 
+	if (test->btf_types[0] != 0) {
+		btf_fd = load_btf_for_test(test);
+		if (btf_fd < 0)
+			goto fail_log;
+		opts.prog_btf_fd = btf_fd;
+	}
+
+	if (test->func_info_cnt != 0) {
+		opts.func_info = test->func_info;
+		opts.func_info_cnt = test->func_info_cnt;
+		opts.func_info_rec_size = sizeof(test->func_info[0]);
+	}
+
 	opts.log_buf = bpf_vlog;
 	opts.log_size = sizeof(bpf_vlog);
 	fd_prog = bpf_prog_load(prog_type, NULL, "GPL", prog, prog_len, &opts);
@@ -1262,6 +1591,9 @@ static void do_test_single(struct bpf_test *test, bool unpriv,
 	if (verbose)
 		printf(", verifier log:\n%s", bpf_vlog);
 
+	if (!check_xlated_program(test, fd_prog))
+		goto fail_log;
+
 	run_errs = 0;
 	run_successes = 0;
 	if (!alignment_prevented_execution && fd_prog >= 0 && test->runs >= 0) {
@@ -1305,6 +1637,7 @@ close_fds:
 	if (test->fill_insns)
 		free(test->fill_insns);
 	close(fd_prog);
+	close(btf_fd);
 	for (i = 0; i < MAX_NR_MAPS; i++)
 		close(map_fds[i]);
 	sched_yield();
diff --git a/tools/testing/selftests/bpf/test_xdp_veth.sh b/tools/testing/selftests/bpf/test_xdp_veth.sh
index 392d28cc4e58..49936c4c8567 100755
--- a/tools/testing/selftests/bpf/test_xdp_veth.sh
+++ b/tools/testing/selftests/bpf/test_xdp_veth.sh
@@ -106,9 +106,9 @@ bpftool prog loadall \
 bpftool map update pinned $BPF_DIR/maps/tx_port key 0 0 0 0 value 122 0 0 0
 bpftool map update pinned $BPF_DIR/maps/tx_port key 1 0 0 0 value 133 0 0 0
 bpftool map update pinned $BPF_DIR/maps/tx_port key 2 0 0 0 value 111 0 0 0
-ip link set dev veth1 xdp pinned $BPF_DIR/progs/redirect_map_0
-ip link set dev veth2 xdp pinned $BPF_DIR/progs/redirect_map_1
-ip link set dev veth3 xdp pinned $BPF_DIR/progs/redirect_map_2
+ip link set dev veth1 xdp pinned $BPF_DIR/progs/xdp_redirect_map_0
+ip link set dev veth2 xdp pinned $BPF_DIR/progs/xdp_redirect_map_1
+ip link set dev veth3 xdp pinned $BPF_DIR/progs/xdp_redirect_map_2
 
 ip -n ${NS1} link set dev veth11 xdp obj xdp_dummy.o sec xdp
 ip -n ${NS2} link set dev veth22 xdp obj xdp_tx.o sec xdp
diff --git a/tools/testing/selftests/bpf/test_xdping.sh b/tools/testing/selftests/bpf/test_xdping.sh
index c2f0ddb45531..c3d82e0a7378 100755
--- a/tools/testing/selftests/bpf/test_xdping.sh
+++ b/tools/testing/selftests/bpf/test_xdping.sh
@@ -95,5 +95,9 @@ for server_args in "" "-I veth0 -s -S" ; do
 	test "$client_args" "$server_args"
 done
 
+# Test drv mode
+test "-I veth1 -N" "-I veth0 -s -N"
+test "-I veth1 -N -c 10" "-I veth0 -s -N"
+
 echo "OK. All tests passed"
 exit 0
diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
index 567500299231..096a957594cd 100755
--- a/tools/testing/selftests/bpf/test_xsk.sh
+++ b/tools/testing/selftests/bpf/test_xsk.sh
@@ -47,7 +47,7 @@
 #       conflict with any existing interface
 #   * tests the veth and xsk layers of the topology
 #
-# See the source xdpxceiver.c for information on each test
+# See the source xskxceiver.c for information on each test
 #
 # Kernel configuration:
 # ---------------------
@@ -160,14 +160,14 @@ statusList=()
 
 TEST_NAME="XSK_SELFTESTS_SOFTIRQ"
 
-execxdpxceiver
+exec_xskxceiver
 
 cleanup_exit ${VETH0} ${VETH1} ${NS1}
 TEST_NAME="XSK_SELFTESTS_BUSY_POLL"
 busy_poll=1
 
 setup_vethPairs
-execxdpxceiver
+exec_xskxceiver
 
 ## END TESTS
 
diff --git a/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c b/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c
new file mode 100644
index 000000000000..a535d41dc20d
--- /dev/null
+++ b/tools/testing/selftests/bpf/verifier/bpf_loop_inline.c
@@ -0,0 +1,264 @@
+#define BTF_TYPES \
+	.btf_strings = "\0int\0i\0ctx\0callback\0main\0", \
+	.btf_types = { \
+	/* 1: int   */ BTF_TYPE_INT_ENC(1, BTF_INT_SIGNED, 0, 32, 4), \
+	/* 2: int*  */ BTF_PTR_ENC(1), \
+	/* 3: void* */ BTF_PTR_ENC(0), \
+	/* 4: int __(void*) */ BTF_FUNC_PROTO_ENC(1, 1), \
+		BTF_FUNC_PROTO_ARG_ENC(7, 3), \
+	/* 5: int __(int, int*) */ BTF_FUNC_PROTO_ENC(1, 2), \
+		BTF_FUNC_PROTO_ARG_ENC(5, 1), \
+		BTF_FUNC_PROTO_ARG_ENC(7, 2), \
+	/* 6: main      */ BTF_FUNC_ENC(20, 4), \
+	/* 7: callback  */ BTF_FUNC_ENC(11, 5), \
+	BTF_END_RAW \
+	}
+
+#define MAIN_TYPE	6
+#define CALLBACK_TYPE	7
+
+/* can't use BPF_CALL_REL, jit_subprogs adjusts IMM & OFF
+ * fields for pseudo calls
+ */
+#define PSEUDO_CALL_INSN() \
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_CALL, \
+		     INSN_OFF_MASK, INSN_IMM_MASK)
+
+/* can't use BPF_FUNC_loop constant,
+ * do_mix_fixups adjusts the IMM field
+ */
+#define HELPER_CALL_INSN() \
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, INSN_OFF_MASK, INSN_IMM_MASK)
+
+{
+	"inline simple bpf_loop call",
+	.insns = {
+	/* main */
+	/* force verifier state branching to verify logic on first and
+	 * subsequent bpf_loop insn processing steps
+	 */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 777, 2),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 6),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { PSEUDO_CALL_INSN() },
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = { { 0, MAIN_TYPE }, { 12, CALLBACK_TYPE } },
+	.func_info_cnt = 2,
+	BTF_TYPES
+},
+{
+	"don't inline bpf_loop call, flags non-zero",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_ALU64_REG(BPF_MOV, BPF_REG_7, BPF_REG_0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 0, 9),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 7),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 1),
+	BPF_JMP_IMM(BPF_JA, 0, 0, -10),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { HELPER_CALL_INSN() },
+	.unexpected_insns = { PSEUDO_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = { { 0, MAIN_TYPE }, { 16, CALLBACK_TYPE } },
+	.func_info_cnt = 2,
+	BTF_TYPES
+},
+{
+	"don't inline bpf_loop call, callback non-constant",
+	.insns = {
+	/* main */
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_jiffies64),
+	BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 777, 4), /* pick a random callback */
+
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 10),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_JMP_IMM(BPF_JA, 0, 0, 3),
+
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 8),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	/* callback #2 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { HELPER_CALL_INSN() },
+	.unexpected_insns = { PSEUDO_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = {
+		{ 0, MAIN_TYPE },
+		{ 14, CALLBACK_TYPE },
+		{ 16, CALLBACK_TYPE }
+	},
+	.func_info_cnt = 3,
+	BTF_TYPES
+},
+{
+	"bpf_loop_inline and a dead func",
+	.insns = {
+	/* main */
+
+	/* A reference to callback #1 to make verifier count it as a func.
+	 * This reference is overwritten below and callback #1 is dead.
+	 */
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 9),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 8),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	/* callback #2 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = { PSEUDO_CALL_INSN() },
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+	.runs = 0,
+	.func_info = {
+		{ 0, MAIN_TYPE },
+		{ 10, CALLBACK_TYPE },
+		{ 12, CALLBACK_TYPE }
+	},
+	.func_info_cnt = 3,
+	BTF_TYPES
+},
+{
+	"bpf_loop_inline stack locations for loop vars",
+	.insns = {
+	/* main */
+	BPF_ST_MEM(BPF_W, BPF_REG_10, -12, 0x77),
+	/* bpf_loop call #1 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 1),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 22),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	/* bpf_loop call #2 */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 16),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	/* call func and exit */
+	BPF_CALL_REL(2),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* func */
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -32, 0x55),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_1, 2),
+	BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, BPF_REG_2, BPF_PSEUDO_FUNC, 0, 6),
+	BPF_RAW_INSN(0, 0, 0, 0, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_3, 0),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_4, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_loop),
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	/* callback */
+	BPF_ALU64_IMM(BPF_MOV, BPF_REG_0, 1),
+	BPF_EXIT_INSN(),
+	},
+	.expected_insns = {
+	BPF_ST_MEM(BPF_W, BPF_REG_10, -12, 0x77),
+	SKIP_INSNS(),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -40),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -32),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -24),
+	SKIP_INSNS(),
+	/* offsets are the same as in the first call */
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -40),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -32),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -24),
+	SKIP_INSNS(),
+	BPF_ST_MEM(BPF_DW, BPF_REG_10, -32, 0x55),
+	SKIP_INSNS(),
+	/* offsets differ from main because of different offset
+	 * in BPF_ST_MEM instruction
+	 */
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -56),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_7, -48),
+	BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_8, -40),
+	},
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.result = ACCEPT,
+	.func_info = {
+		{ 0, MAIN_TYPE },
+		{ 16, MAIN_TYPE },
+		{ 25, CALLBACK_TYPE },
+	},
+	.func_info_cnt = 3,
+	BTF_TYPES
+},
+{
+	"inline bpf_loop call in a big program",
+	.insns = {},
+	.fill_helper = bpf_fill_big_prog_with_loop_1,
+	.expected_insns = { PSEUDO_CALL_INSN() },
+	.unexpected_insns = { HELPER_CALL_INSN() },
+	.result = ACCEPT,
+	.prog_type = BPF_PROG_TYPE_TRACEPOINT,
+	.func_info = { { 0, MAIN_TYPE }, { 16, CALLBACK_TYPE } },
+	.func_info_cnt = 2,
+	BTF_TYPES
+},
+
+#undef HELPER_CALL_INSN
+#undef PSEUDO_CALL_INSN
+#undef CALLBACK_TYPE
+#undef MAIN_TYPE
+#undef BTF_TYPES
diff --git a/tools/testing/selftests/bpf/verifier/calls.c b/tools/testing/selftests/bpf/verifier/calls.c
index 743ed34c1238..3fb4f69b1962 100644
--- a/tools/testing/selftests/bpf/verifier/calls.c
+++ b/tools/testing/selftests/bpf/verifier/calls.c
@@ -219,6 +219,59 @@
 	.errstr = "variable ptr_ access var_off=(0x0; 0x7) disallowed",
 },
 {
+	"calls: invalid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 16),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_ref", 8 },
+		{ "bpf_kfunc_call_test_ref", 10 },
+	},
+	.result_unpriv = REJECT,
+	.result = REJECT,
+	.errstr = "R1 must be referenced",
+},
+{
+	"calls: valid kfunc call: referenced arg needs refcounted PTR_TO_BTF_ID",
+	.insns = {
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_10),
+	BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8),
+	BPF_ST_MEM(BPF_DW, BPF_REG_1, 0, 0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
+	BPF_EXIT_INSN(),
+	BPF_MOV64_REG(BPF_REG_6, BPF_REG_0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_REG(BPF_REG_1, BPF_REG_6),
+	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, BPF_PSEUDO_KFUNC_CALL, 0, 0),
+	BPF_MOV64_IMM(BPF_REG_0, 0),
+	BPF_EXIT_INSN(),
+	},
+	.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	.fixup_kfunc_btf_id = {
+		{ "bpf_kfunc_call_test_acquire", 3 },
+		{ "bpf_kfunc_call_test_ref", 8 },
+		{ "bpf_kfunc_call_test_release", 10 },
+	},
+	.result_unpriv = REJECT,
+	.result = ACCEPT,
+},
+{
 	"calls: basic sanity",
 	.insns = {
 	BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 1, 0, 2),
diff --git a/tools/testing/selftests/bpf/vmtest.sh b/tools/testing/selftests/bpf/vmtest.sh
index e0bb04a97e10..b86ae4a2e5c5 100755
--- a/tools/testing/selftests/bpf/vmtest.sh
+++ b/tools/testing/selftests/bpf/vmtest.sh
@@ -30,8 +30,7 @@ DEFAULT_COMMAND="./test_progs"
 MOUNT_DIR="mnt"
 ROOTFS_IMAGE="root.img"
 OUTPUT_DIR="$HOME/.bpf_selftests"
-KCONFIG_URL="https://raw.githubusercontent.com/libbpf/libbpf/master/travis-ci/vmtest/configs/config-latest.${ARCH}"
-KCONFIG_API_URL="https://api.github.com/repos/libbpf/libbpf/contents/travis-ci/vmtest/configs/config-latest.${ARCH}"
+KCONFIG_REL_PATHS=("tools/testing/selftests/bpf/config" "tools/testing/selftests/bpf/config.${ARCH}")
 INDEX_URL="https://raw.githubusercontent.com/libbpf/ci/master/INDEX"
 NUM_COMPILE_JOBS="$(nproc)"
 LOG_FILE_BASE="$(date +"bpf_selftests.%Y-%m-%d_%H-%M-%S")"
@@ -269,26 +268,42 @@ is_rel_path()
 	[[ ${path:0:1} != "/" ]]
 }
 
+do_update_kconfig()
+{
+	local kernel_checkout="$1"
+	local kconfig_file="$2"
+
+	rm -f "$kconfig_file" 2> /dev/null
+
+	for config in "${KCONFIG_REL_PATHS[@]}"; do
+		local kconfig_src="${kernel_checkout}/${config}"
+		cat "$kconfig_src" >> "$kconfig_file"
+	done
+}
+
 update_kconfig()
 {
-	local kconfig_file="$1"
-	local update_command="curl -sLf ${KCONFIG_URL} -o ${kconfig_file}"
-	# Github does not return the "last-modified" header when retrieving the
-	# raw contents of the file. Use the API call to get the last-modified
-	# time of the kernel config and only update the config if it has been
-	# updated after the previously cached config was created. This avoids
-	# unnecessarily compiling the kernel and selftests.
-	if [[ -f "${kconfig_file}" ]]; then
-		local last_modified_date="$(curl -sL -D - "${KCONFIG_API_URL}" -o /dev/null | \
-			grep "last-modified" | awk -F ': ' '{print $2}')"
-		local remote_modified_timestamp="$(date -d "${last_modified_date}" +"%s")"
-		local local_creation_timestamp="$(stat -c %Y "${kconfig_file}")"
+	local kernel_checkout="$1"
+	local kconfig_file="$2"
 
-		if [[ "${remote_modified_timestamp}" -gt "${local_creation_timestamp}" ]]; then
-			${update_command}
-		fi
+	if [[ -f "${kconfig_file}" ]]; then
+		local local_modified="$(stat -c %Y "${kconfig_file}")"
+
+		for config in "${KCONFIG_REL_PATHS[@]}"; do
+			local kconfig_src="${kernel_checkout}/${config}"
+			local src_modified="$(stat -c %Y "${kconfig_src}")"
+			# Only update the config if it has been updated after the
+			# previously cached config was created. This avoids
+			# unnecessarily compiling the kernel and selftests.
+			if [[ "${src_modified}" -gt "${local_modified}" ]]; then
+				do_update_kconfig "$kernel_checkout" "$kconfig_file"
+				# Once we have found one outdated configuration
+				# there is no need to check other ones.
+				break
+			fi
+		done
 	else
-		${update_command}
+		do_update_kconfig "$kernel_checkout" "$kconfig_file"
 	fi
 }
 
@@ -372,7 +387,7 @@ main()
 
 	mkdir -p "${OUTPUT_DIR}"
 	mkdir -p "${mount_dir}"
-	update_kconfig "${kconfig_file}"
+	update_kconfig "${kernel_checkout}" "${kconfig_file}"
 
 	recompile_kernel "${kernel_checkout}" "${make_command}"
 
diff --git a/tools/testing/selftests/bpf/xdp_synproxy.c b/tools/testing/selftests/bpf/xdp_synproxy.c
new file mode 100644
index 000000000000..d874ddfb39c4
--- /dev/null
+++ b/tools/testing/selftests/bpf/xdp_synproxy.c
@@ -0,0 +1,466 @@
+// SPDX-License-Identifier: LGPL-2.1 OR BSD-2-Clause
+/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
+
+#include <stdnoreturn.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <signal.h>
+#include <sys/types.h>
+#include <bpf/bpf.h>
+#include <bpf/libbpf.h>
+#include <net/if.h>
+#include <linux/if_link.h>
+#include <linux/limits.h>
+
+static unsigned int ifindex;
+static __u32 attached_prog_id;
+static bool attached_tc;
+
+static void noreturn cleanup(int sig)
+{
+	LIBBPF_OPTS(bpf_xdp_attach_opts, opts);
+	int prog_fd;
+	int err;
+
+	if (attached_prog_id == 0)
+		exit(0);
+
+	if (attached_tc) {
+		LIBBPF_OPTS(bpf_tc_hook, hook,
+			    .ifindex = ifindex,
+			    .attach_point = BPF_TC_INGRESS);
+
+		err = bpf_tc_hook_destroy(&hook);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_tc_hook_destroy: %s\n", strerror(-err));
+			fprintf(stderr, "Failed to destroy the TC hook\n");
+			exit(1);
+		}
+		exit(0);
+	}
+
+	prog_fd = bpf_prog_get_fd_by_id(attached_prog_id);
+	if (prog_fd < 0) {
+		fprintf(stderr, "Error: bpf_prog_get_fd_by_id: %s\n", strerror(-prog_fd));
+		err = bpf_xdp_attach(ifindex, -1, 0, NULL);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_set_link_xdp_fd: %s\n", strerror(-err));
+			fprintf(stderr, "Failed to detach XDP program\n");
+			exit(1);
+		}
+	} else {
+		opts.old_prog_fd = prog_fd;
+		err = bpf_xdp_attach(ifindex, -1, XDP_FLAGS_REPLACE, &opts);
+		close(prog_fd);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_set_link_xdp_fd_opts: %s\n", strerror(-err));
+			/* Not an error if already replaced by someone else. */
+			if (err != -EEXIST) {
+				fprintf(stderr, "Failed to detach XDP program\n");
+				exit(1);
+			}
+		}
+	}
+	exit(0);
+}
+
+static noreturn void usage(const char *progname)
+{
+	fprintf(stderr, "Usage: %s [--iface <iface>|--prog <prog_id>] [--mss4 <mss ipv4> --mss6 <mss ipv6> --wscale <wscale> --ttl <ttl>] [--ports <port1>,<port2>,...] [--single] [--tc]\n",
+		progname);
+	exit(1);
+}
+
+static unsigned long parse_arg_ul(const char *progname, const char *arg, unsigned long limit)
+{
+	unsigned long res;
+	char *endptr;
+
+	errno = 0;
+	res = strtoul(arg, &endptr, 10);
+	if (errno != 0 || *endptr != '\0' || arg[0] == '\0' || res > limit)
+		usage(progname);
+
+	return res;
+}
+
+static void parse_options(int argc, char *argv[], unsigned int *ifindex, __u32 *prog_id,
+			  __u64 *tcpipopts, char **ports, bool *single, bool *tc)
+{
+	static struct option long_options[] = {
+		{ "help", no_argument, NULL, 'h' },
+		{ "iface", required_argument, NULL, 'i' },
+		{ "prog", required_argument, NULL, 'x' },
+		{ "mss4", required_argument, NULL, 4 },
+		{ "mss6", required_argument, NULL, 6 },
+		{ "wscale", required_argument, NULL, 'w' },
+		{ "ttl", required_argument, NULL, 't' },
+		{ "ports", required_argument, NULL, 'p' },
+		{ "single", no_argument, NULL, 's' },
+		{ "tc", no_argument, NULL, 'c' },
+		{ NULL, 0, NULL, 0 },
+	};
+	unsigned long mss4, mss6, wscale, ttl;
+	unsigned int tcpipopts_mask = 0;
+
+	if (argc < 2)
+		usage(argv[0]);
+
+	*ifindex = 0;
+	*prog_id = 0;
+	*tcpipopts = 0;
+	*ports = NULL;
+	*single = false;
+
+	while (true) {
+		int opt;
+
+		opt = getopt_long(argc, argv, "", long_options, NULL);
+		if (opt == -1)
+			break;
+
+		switch (opt) {
+		case 'h':
+			usage(argv[0]);
+			break;
+		case 'i':
+			*ifindex = if_nametoindex(optarg);
+			if (*ifindex == 0)
+				usage(argv[0]);
+			break;
+		case 'x':
+			*prog_id = parse_arg_ul(argv[0], optarg, UINT32_MAX);
+			if (*prog_id == 0)
+				usage(argv[0]);
+			break;
+		case 4:
+			mss4 = parse_arg_ul(argv[0], optarg, UINT16_MAX);
+			tcpipopts_mask |= 1 << 0;
+			break;
+		case 6:
+			mss6 = parse_arg_ul(argv[0], optarg, UINT16_MAX);
+			tcpipopts_mask |= 1 << 1;
+			break;
+		case 'w':
+			wscale = parse_arg_ul(argv[0], optarg, 14);
+			tcpipopts_mask |= 1 << 2;
+			break;
+		case 't':
+			ttl = parse_arg_ul(argv[0], optarg, UINT8_MAX);
+			tcpipopts_mask |= 1 << 3;
+			break;
+		case 'p':
+			*ports = optarg;
+			break;
+		case 's':
+			*single = true;
+			break;
+		case 'c':
+			*tc = true;
+			break;
+		default:
+			usage(argv[0]);
+		}
+	}
+	if (optind < argc)
+		usage(argv[0]);
+
+	if (tcpipopts_mask == 0xf) {
+		if (mss4 == 0 || mss6 == 0 || wscale == 0 || ttl == 0)
+			usage(argv[0]);
+		*tcpipopts = (mss6 << 32) | (ttl << 24) | (wscale << 16) | mss4;
+	} else if (tcpipopts_mask != 0) {
+		usage(argv[0]);
+	}
+
+	if (*ifindex != 0 && *prog_id != 0)
+		usage(argv[0]);
+	if (*ifindex == 0 && *prog_id == 0)
+		usage(argv[0]);
+}
+
+static int syncookie_attach(const char *argv0, unsigned int ifindex, bool tc)
+{
+	struct bpf_prog_info info = {};
+	__u32 info_len = sizeof(info);
+	char xdp_filename[PATH_MAX];
+	struct bpf_program *prog;
+	struct bpf_object *obj;
+	int prog_fd;
+	int err;
+
+	snprintf(xdp_filename, sizeof(xdp_filename), "%s_kern.o", argv0);
+	obj = bpf_object__open_file(xdp_filename, NULL);
+	err = libbpf_get_error(obj);
+	if (err < 0) {
+		fprintf(stderr, "Error: bpf_object__open_file: %s\n", strerror(-err));
+		return err;
+	}
+
+	err = bpf_object__load(obj);
+	if (err < 0) {
+		fprintf(stderr, "Error: bpf_object__open_file: %s\n", strerror(-err));
+		return err;
+	}
+
+	prog = bpf_object__find_program_by_name(obj, tc ? "syncookie_tc" : "syncookie_xdp");
+	if (!prog) {
+		fprintf(stderr, "Error: bpf_object__find_program_by_name: program was not found\n");
+		return -ENOENT;
+	}
+
+	prog_fd = bpf_program__fd(prog);
+
+	err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len);
+	if (err < 0) {
+		fprintf(stderr, "Error: bpf_obj_get_info_by_fd: %s\n", strerror(-err));
+		goto out;
+	}
+	attached_tc = tc;
+	attached_prog_id = info.id;
+	signal(SIGINT, cleanup);
+	signal(SIGTERM, cleanup);
+	if (tc) {
+		LIBBPF_OPTS(bpf_tc_hook, hook,
+			    .ifindex = ifindex,
+			    .attach_point = BPF_TC_INGRESS);
+		LIBBPF_OPTS(bpf_tc_opts, opts,
+			    .handle = 1,
+			    .priority = 1,
+			    .prog_fd = prog_fd);
+
+		err = bpf_tc_hook_create(&hook);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_tc_hook_create: %s\n",
+				strerror(-err));
+			goto fail;
+		}
+		err = bpf_tc_attach(&hook, &opts);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_tc_attach: %s\n",
+				strerror(-err));
+			goto fail;
+		}
+
+	} else {
+		err = bpf_xdp_attach(ifindex, prog_fd,
+				     XDP_FLAGS_UPDATE_IF_NOEXIST, NULL);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_set_link_xdp_fd: %s\n",
+				strerror(-err));
+			goto fail;
+		}
+	}
+	err = 0;
+out:
+	bpf_object__close(obj);
+	return err;
+fail:
+	signal(SIGINT, SIG_DFL);
+	signal(SIGTERM, SIG_DFL);
+	attached_prog_id = 0;
+	goto out;
+}
+
+static int syncookie_open_bpf_maps(__u32 prog_id, int *values_map_fd, int *ports_map_fd)
+{
+	struct bpf_prog_info prog_info;
+	__u32 map_ids[8];
+	__u32 info_len;
+	int prog_fd;
+	int err;
+	int i;
+
+	*values_map_fd = -1;
+	*ports_map_fd = -1;
+
+	prog_fd = bpf_prog_get_fd_by_id(prog_id);
+	if (prog_fd < 0) {
+		fprintf(stderr, "Error: bpf_prog_get_fd_by_id: %s\n", strerror(-prog_fd));
+		return prog_fd;
+	}
+
+	prog_info = (struct bpf_prog_info) {
+		.nr_map_ids = 8,
+		.map_ids = (__u64)map_ids,
+	};
+	info_len = sizeof(prog_info);
+
+	err = bpf_obj_get_info_by_fd(prog_fd, &prog_info, &info_len);
+	if (err != 0) {
+		fprintf(stderr, "Error: bpf_obj_get_info_by_fd: %s\n", strerror(-err));
+		goto out;
+	}
+
+	if (prog_info.nr_map_ids < 2) {
+		fprintf(stderr, "Error: Found %u BPF maps, expected at least 2\n",
+			prog_info.nr_map_ids);
+		err = -ENOENT;
+		goto out;
+	}
+
+	for (i = 0; i < prog_info.nr_map_ids; i++) {
+		struct bpf_map_info map_info = {};
+		int map_fd;
+
+		err = bpf_map_get_fd_by_id(map_ids[i]);
+		if (err < 0) {
+			fprintf(stderr, "Error: bpf_map_get_fd_by_id: %s\n", strerror(-err));
+			goto err_close_map_fds;
+		}
+		map_fd = err;
+
+		info_len = sizeof(map_info);
+		err = bpf_obj_get_info_by_fd(map_fd, &map_info, &info_len);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_obj_get_info_by_fd: %s\n", strerror(-err));
+			close(map_fd);
+			goto err_close_map_fds;
+		}
+		if (strcmp(map_info.name, "values") == 0) {
+			*values_map_fd = map_fd;
+			continue;
+		}
+		if (strcmp(map_info.name, "allowed_ports") == 0) {
+			*ports_map_fd = map_fd;
+			continue;
+		}
+		close(map_fd);
+	}
+
+	if (*values_map_fd != -1 && *ports_map_fd != -1) {
+		err = 0;
+		goto out;
+	}
+
+	err = -ENOENT;
+
+err_close_map_fds:
+	if (*values_map_fd != -1)
+		close(*values_map_fd);
+	if (*ports_map_fd != -1)
+		close(*ports_map_fd);
+	*values_map_fd = -1;
+	*ports_map_fd = -1;
+
+out:
+	close(prog_fd);
+	return err;
+}
+
+int main(int argc, char *argv[])
+{
+	int values_map_fd, ports_map_fd;
+	__u64 tcpipopts;
+	bool firstiter;
+	__u64 prevcnt;
+	__u32 prog_id;
+	char *ports;
+	bool single;
+	int err = 0;
+	bool tc;
+
+	parse_options(argc, argv, &ifindex, &prog_id, &tcpipopts, &ports,
+		      &single, &tc);
+
+	if (prog_id == 0) {
+		if (!tc) {
+			err = bpf_xdp_query_id(ifindex, 0, &prog_id);
+			if (err < 0) {
+				fprintf(stderr, "Error: bpf_get_link_xdp_id: %s\n",
+					strerror(-err));
+				goto out;
+			}
+		}
+		if (prog_id == 0) {
+			err = syncookie_attach(argv[0], ifindex, tc);
+			if (err < 0)
+				goto out;
+			prog_id = attached_prog_id;
+		}
+	}
+
+	err = syncookie_open_bpf_maps(prog_id, &values_map_fd, &ports_map_fd);
+	if (err < 0)
+		goto out;
+
+	if (ports) {
+		__u16 port_last = 0;
+		__u32 port_idx = 0;
+		char *p = ports;
+
+		fprintf(stderr, "Replacing allowed ports\n");
+
+		while (p && *p != '\0') {
+			char *token = strsep(&p, ",");
+			__u16 port;
+
+			port = parse_arg_ul(argv[0], token, UINT16_MAX);
+			err = bpf_map_update_elem(ports_map_fd, &port_idx, &port, BPF_ANY);
+			if (err != 0) {
+				fprintf(stderr, "Error: bpf_map_update_elem: %s\n", strerror(-err));
+				fprintf(stderr, "Failed to add port %u (index %u)\n",
+					port, port_idx);
+				goto out_close_maps;
+			}
+			fprintf(stderr, "Added port %u\n", port);
+			port_idx++;
+		}
+		err = bpf_map_update_elem(ports_map_fd, &port_idx, &port_last, BPF_ANY);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_update_elem: %s\n", strerror(-err));
+			fprintf(stderr, "Failed to add the terminator value 0 (index %u)\n",
+				port_idx);
+			goto out_close_maps;
+		}
+	}
+
+	if (tcpipopts) {
+		__u32 key = 0;
+
+		fprintf(stderr, "Replacing TCP/IP options\n");
+
+		err = bpf_map_update_elem(values_map_fd, &key, &tcpipopts, BPF_ANY);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_update_elem: %s\n", strerror(-err));
+			goto out_close_maps;
+		}
+	}
+
+	if ((ports || tcpipopts) && attached_prog_id == 0 && !single)
+		goto out_close_maps;
+
+	prevcnt = 0;
+	firstiter = true;
+	while (true) {
+		__u32 key = 1;
+		__u64 value;
+
+		err = bpf_map_lookup_elem(values_map_fd, &key, &value);
+		if (err != 0) {
+			fprintf(stderr, "Error: bpf_map_lookup_elem: %s\n", strerror(-err));
+			goto out_close_maps;
+		}
+		if (firstiter) {
+			prevcnt = value;
+			firstiter = false;
+		}
+		if (single) {
+			printf("Total SYNACKs generated: %llu\n", value);
+			break;
+		}
+		printf("SYNACKs generated: %llu (total %llu)\n", value - prevcnt, value);
+		prevcnt = value;
+		sleep(1);
+	}
+
+out_close_maps:
+	close(values_map_fd);
+	close(ports_map_fd);
+out:
+	return err == 0 ? 0 : 1;
+}
diff --git a/tools/testing/selftests/bpf/xsk.c b/tools/testing/selftests/bpf/xsk.c
new file mode 100644
index 000000000000..f2721a4ae7c5
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk.c
@@ -0,0 +1,1268 @@
+// 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/kernel.h>
+#include <linux/list.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 <linux/if_link.h>
+
+#include <bpf/bpf.h>
+#include <bpf/libbpf.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
+
+#define pr_warn(fmt, ...) fprintf(stderr, fmt, ##__VA_ARGS__)
+
+enum xsk_prog {
+	XSK_PROG_FALLBACK,
+	XSK_PROG_REDIRECT_FLAGS,
+};
+
+struct xsk_umem {
+	struct xsk_ring_prod *fill_save;
+	struct xsk_ring_cons *comp_save;
+	char *umem_area;
+	struct xsk_umem_config config;
+	int fd;
+	int refcount;
+	struct list_head ctx_list;
+	bool rx_ring_setup_done;
+	bool tx_ring_setup_done;
+};
+
+struct xsk_ctx {
+	struct xsk_ring_prod *fill;
+	struct xsk_ring_cons *comp;
+	__u32 queue_id;
+	struct xsk_umem *umem;
+	int refcount;
+	int ifindex;
+	struct list_head list;
+	int prog_fd;
+	int link_fd;
+	int xsks_map_fd;
+	char ifname[IFNAMSIZ];
+	bool has_bpf_link;
+};
+
+struct xsk_socket {
+	struct xsk_ring_cons *rx;
+	struct xsk_ring_prod *tx;
+	__u64 outstanding_tx;
+	struct xsk_ctx *ctx;
+	struct xsk_socket_config config;
+	int fd;
+};
+
+struct xsk_nl_info {
+	bool xdp_prog_attached;
+	int ifindex;
+	int fd;
+};
+
+/* Up until and including Linux 5.3 */
+struct xdp_ring_offset_v1 {
+	__u64 producer;
+	__u64 consumer;
+	__u64 desc;
+};
+
+/* Up until and including Linux 5.3 */
+struct xdp_mmap_offsets_v1 {
+	struct xdp_ring_offset_v1 rx;
+	struct xdp_ring_offset_v1 tx;
+	struct xdp_ring_offset_v1 fr;
+	struct xdp_ring_offset_v1 cr;
+};
+
+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;
+		cfg->flags = XSK_UMEM__DEFAULT_FLAGS;
+		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;
+	cfg->flags = usr_cfg->flags;
+}
+
+static int 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 0;
+	}
+
+	if (usr_cfg->libbpf_flags & ~XSK_LIBBPF_FLAGS__INHIBIT_PROG_LOAD)
+		return -EINVAL;
+
+	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;
+
+	return 0;
+}
+
+static void xsk_mmap_offsets_v1(struct xdp_mmap_offsets *off)
+{
+	struct xdp_mmap_offsets_v1 off_v1;
+
+	/* getsockopt on a kernel <= 5.3 has no flags fields.
+	 * Copy over the offsets to the correct places in the >=5.4 format
+	 * and put the flags where they would have been on that kernel.
+	 */
+	memcpy(&off_v1, off, sizeof(off_v1));
+
+	off->rx.producer = off_v1.rx.producer;
+	off->rx.consumer = off_v1.rx.consumer;
+	off->rx.desc = off_v1.rx.desc;
+	off->rx.flags = off_v1.rx.consumer + sizeof(__u32);
+
+	off->tx.producer = off_v1.tx.producer;
+	off->tx.consumer = off_v1.tx.consumer;
+	off->tx.desc = off_v1.tx.desc;
+	off->tx.flags = off_v1.tx.consumer + sizeof(__u32);
+
+	off->fr.producer = off_v1.fr.producer;
+	off->fr.consumer = off_v1.fr.consumer;
+	off->fr.desc = off_v1.fr.desc;
+	off->fr.flags = off_v1.fr.consumer + sizeof(__u32);
+
+	off->cr.producer = off_v1.cr.producer;
+	off->cr.consumer = off_v1.cr.consumer;
+	off->cr.desc = off_v1.cr.desc;
+	off->cr.flags = off_v1.cr.consumer + sizeof(__u32);
+}
+
+static int xsk_get_mmap_offsets(int fd, struct xdp_mmap_offsets *off)
+{
+	socklen_t optlen;
+	int err;
+
+	optlen = sizeof(*off);
+	err = getsockopt(fd, SOL_XDP, XDP_MMAP_OFFSETS, off, &optlen);
+	if (err)
+		return err;
+
+	if (optlen == sizeof(*off))
+		return 0;
+
+	if (optlen == sizeof(struct xdp_mmap_offsets_v1)) {
+		xsk_mmap_offsets_v1(off);
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int xsk_create_umem_rings(struct xsk_umem *umem, int fd,
+				 struct xsk_ring_prod *fill,
+				 struct xsk_ring_cons *comp)
+{
+	struct xdp_mmap_offsets off;
+	void *map;
+	int err;
+
+	err = setsockopt(fd, SOL_XDP, XDP_UMEM_FILL_RING,
+			 &umem->config.fill_size,
+			 sizeof(umem->config.fill_size));
+	if (err)
+		return -errno;
+
+	err = setsockopt(fd, SOL_XDP, XDP_UMEM_COMPLETION_RING,
+			 &umem->config.comp_size,
+			 sizeof(umem->config.comp_size));
+	if (err)
+		return -errno;
+
+	err = xsk_get_mmap_offsets(fd, &off);
+	if (err)
+		return -errno;
+
+	map = mmap(NULL, off.fr.desc + umem->config.fill_size * sizeof(__u64),
+		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
+		   XDP_UMEM_PGOFF_FILL_RING);
+	if (map == MAP_FAILED)
+		return -errno;
+
+	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->flags = map + off.fr.flags;
+	fill->ring = map + off.fr.desc;
+	fill->cached_cons = umem->config.fill_size;
+
+	map = mmap(NULL, off.cr.desc + umem->config.comp_size * sizeof(__u64),
+		   PROT_READ | PROT_WRITE, MAP_SHARED | MAP_POPULATE, fd,
+		   XDP_UMEM_PGOFF_COMPLETION_RING);
+	if (map == MAP_FAILED) {
+		err = -errno;
+		goto out_mmap;
+	}
+
+	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->flags = map + off.cr.flags;
+	comp->ring = map + off.cr.desc;
+
+	return 0;
+
+out_mmap:
+	munmap(map, off.fr.desc + umem->config.fill_size * sizeof(__u64));
+	return err;
+}
+
+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_umem_reg mr;
+	struct xsk_umem *umem;
+	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 | SOCK_CLOEXEC, 0);
+	if (umem->fd < 0) {
+		err = -errno;
+		goto out_umem_alloc;
+	}
+
+	umem->umem_area = umem_area;
+	INIT_LIST_HEAD(&umem->ctx_list);
+	xsk_set_umem_config(&umem->config, usr_config);
+
+	memset(&mr, 0, sizeof(mr));
+	mr.addr = (uintptr_t)umem_area;
+	mr.len = size;
+	mr.chunk_size = umem->config.frame_size;
+	mr.headroom = umem->config.frame_headroom;
+	mr.flags = umem->config.flags;
+
+	err = setsockopt(umem->fd, SOL_XDP, XDP_UMEM_REG, &mr, sizeof(mr));
+	if (err) {
+		err = -errno;
+		goto out_socket;
+	}
+
+	err = xsk_create_umem_rings(umem, umem->fd, fill, comp);
+	if (err)
+		goto out_socket;
+
+	umem->fill_save = fill;
+	umem->comp_save = comp;
+	*umem_ptr = umem;
+	return 0;
+
+out_socket:
+	close(umem->fd);
+out_umem_alloc:
+	free(umem);
+	return err;
+}
+
+struct xsk_umem_config_v1 {
+	__u32 fill_size;
+	__u32 comp_size;
+	__u32 frame_size;
+	__u32 frame_headroom;
+};
+
+static enum xsk_prog get_xsk_prog(void)
+{
+	enum xsk_prog detected = XSK_PROG_FALLBACK;
+	char data_in = 0, data_out;
+	struct bpf_insn insns[] = {
+		BPF_LD_MAP_FD(BPF_REG_1, 0),
+		BPF_MOV64_IMM(BPF_REG_2, 0),
+		BPF_MOV64_IMM(BPF_REG_3, XDP_PASS),
+		BPF_EMIT_CALL(BPF_FUNC_redirect_map),
+		BPF_EXIT_INSN(),
+	};
+	LIBBPF_OPTS(bpf_test_run_opts, opts,
+		.data_in = &data_in,
+		.data_size_in = 1,
+		.data_out = &data_out,
+	);
+
+	int prog_fd, map_fd, ret, insn_cnt = ARRAY_SIZE(insns);
+
+	map_fd = bpf_map_create(BPF_MAP_TYPE_XSKMAP, NULL, sizeof(int), sizeof(int), 1, NULL);
+	if (map_fd < 0)
+		return detected;
+
+	insns[0].imm = map_fd;
+
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, NULL, "GPL", insns, insn_cnt, NULL);
+	if (prog_fd < 0) {
+		close(map_fd);
+		return detected;
+	}
+
+	ret = bpf_prog_test_run_opts(prog_fd, &opts);
+	if (!ret && opts.retval == XDP_PASS)
+		detected = XSK_PROG_REDIRECT_FLAGS;
+	close(prog_fd);
+	close(map_fd);
+	return detected;
+}
+
+static int xsk_load_xdp_prog(struct xsk_socket *xsk)
+{
+	static const int log_buf_size = 16 * 1024;
+	struct xsk_ctx *ctx = xsk->ctx;
+	char log_buf[log_buf_size];
+	int prog_fd;
+
+	/* This is the fallback C-program:
+	 * SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx)
+	 * {
+	 *     int ret, index = ctx->rx_queue_index;
+	 *
+	 *     // A set entry here means that the correspnding queue_id
+	 *     // has an active AF_XDP socket bound to it.
+	 *     ret = bpf_redirect_map(&xsks_map, index, XDP_PASS);
+	 *     if (ret > 0)
+	 *         return ret;
+	 *
+	 *     // Fallback for pre-5.3 kernels, not supporting default
+	 *     // action in the flags parameter.
+	 *     if (bpf_map_lookup_elem(&xsks_map, &index))
+	 *         return bpf_redirect_map(&xsks_map, index, 0);
+	 *     return XDP_PASS;
+	 * }
+	 */
+	struct bpf_insn prog[] = {
+		/* r2 = *(u32 *)(r1 + 16) */
+		BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 16),
+		/* *(u32 *)(r10 - 4) = r2 */
+		BPF_STX_MEM(BPF_W, BPF_REG_10, BPF_REG_2, -4),
+		/* r1 = xskmap[] */
+		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		/* r3 = XDP_PASS */
+		BPF_MOV64_IMM(BPF_REG_3, 2),
+		/* call bpf_redirect_map */
+		BPF_EMIT_CALL(BPF_FUNC_redirect_map),
+		/* if w0 != 0 goto pc+13 */
+		BPF_JMP32_IMM(BPF_JSGT, BPF_REG_0, 0, 13),
+		/* r2 = r10 */
+		BPF_MOV64_REG(BPF_REG_2, BPF_REG_10),
+		/* r2 += -4 */
+		BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4),
+		/* r1 = xskmap[] */
+		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		/* call bpf_map_lookup_elem */
+		BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
+		/* r1 = r0 */
+		BPF_MOV64_REG(BPF_REG_1, BPF_REG_0),
+		/* r0 = XDP_PASS */
+		BPF_MOV64_IMM(BPF_REG_0, 2),
+		/* if r1 == 0 goto pc+5 */
+		BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 5),
+		/* r2 = *(u32 *)(r10 - 4) */
+		BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_10, -4),
+		/* r1 = xskmap[] */
+		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		/* r3 = 0 */
+		BPF_MOV64_IMM(BPF_REG_3, 0),
+		/* call bpf_redirect_map */
+		BPF_EMIT_CALL(BPF_FUNC_redirect_map),
+		/* The jumps are to this instruction */
+		BPF_EXIT_INSN(),
+	};
+
+	/* This is the post-5.3 kernel C-program:
+	 * SEC("xdp_sock") int xdp_sock_prog(struct xdp_md *ctx)
+	 * {
+	 *     return bpf_redirect_map(&xsks_map, ctx->rx_queue_index, XDP_PASS);
+	 * }
+	 */
+	struct bpf_insn prog_redirect_flags[] = {
+		/* r2 = *(u32 *)(r1 + 16) */
+		BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 16),
+		/* r1 = xskmap[] */
+		BPF_LD_MAP_FD(BPF_REG_1, ctx->xsks_map_fd),
+		/* r3 = XDP_PASS */
+		BPF_MOV64_IMM(BPF_REG_3, 2),
+		/* call bpf_redirect_map */
+		BPF_EMIT_CALL(BPF_FUNC_redirect_map),
+		BPF_EXIT_INSN(),
+	};
+	size_t insns_cnt[] = {ARRAY_SIZE(prog),
+			      ARRAY_SIZE(prog_redirect_flags),
+	};
+	struct bpf_insn *progs[] = {prog, prog_redirect_flags};
+	enum xsk_prog option = get_xsk_prog();
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.log_buf = log_buf,
+		.log_size = log_buf_size,
+	);
+
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, NULL, "LGPL-2.1 or BSD-2-Clause",
+				progs[option], insns_cnt[option], &opts);
+	if (prog_fd < 0) {
+		pr_warn("BPF log buffer:\n%s", log_buf);
+		return prog_fd;
+	}
+
+	ctx->prog_fd = prog_fd;
+	return 0;
+}
+
+static int xsk_create_bpf_link(struct xsk_socket *xsk)
+{
+	DECLARE_LIBBPF_OPTS(bpf_link_create_opts, opts);
+	struct xsk_ctx *ctx = xsk->ctx;
+	__u32 prog_id = 0;
+	int link_fd;
+	int err;
+
+	err = bpf_xdp_query_id(ctx->ifindex, xsk->config.xdp_flags, &prog_id);
+	if (err) {
+		pr_warn("getting XDP prog id failed\n");
+		return err;
+	}
+
+	/* if there's a netlink-based XDP prog loaded on interface, bail out
+	 * and ask user to do the removal by himself
+	 */
+	if (prog_id) {
+		pr_warn("Netlink-based XDP prog detected, please unload it in order to launch AF_XDP prog\n");
+		return -EINVAL;
+	}
+
+	opts.flags = xsk->config.xdp_flags & ~(XDP_FLAGS_UPDATE_IF_NOEXIST | XDP_FLAGS_REPLACE);
+
+	link_fd = bpf_link_create(ctx->prog_fd, ctx->ifindex, BPF_XDP, &opts);
+	if (link_fd < 0) {
+		pr_warn("bpf_link_create failed: %s\n", strerror(errno));
+		return link_fd;
+	}
+
+	ctx->link_fd = link_fd;
+	return 0;
+}
+
+/* Copy up to sz - 1 bytes from zero-terminated src string and ensure that dst
+ * is zero-terminated string no matter what (unless sz == 0, in which case
+ * it's a no-op). It's conceptually close to FreeBSD's strlcpy(), but differs
+ * in what is returned. Given this is internal helper, it's trivial to extend
+ * this, when necessary. Use this instead of strncpy inside libbpf source code.
+ */
+static inline void libbpf_strlcpy(char *dst, const char *src, size_t sz)
+{
+        size_t i;
+
+        if (sz == 0)
+                return;
+
+        sz--;
+        for (i = 0; i < sz && src[i]; i++)
+                dst[i] = src[i];
+        dst[i] = '\0';
+}
+
+static int xsk_get_max_queues(struct xsk_socket *xsk)
+{
+	struct ethtool_channels channels = { .cmd = ETHTOOL_GCHANNELS };
+	struct xsk_ctx *ctx = xsk->ctx;
+	struct ifreq ifr = {};
+	int fd, err, ret;
+
+	fd = socket(AF_LOCAL, SOCK_DGRAM | SOCK_CLOEXEC, 0);
+	if (fd < 0)
+		return -errno;
+
+	ifr.ifr_data = (void *)&channels;
+	libbpf_strlcpy(ifr.ifr_name, ctx->ifname, IFNAMSIZ);
+	err = ioctl(fd, SIOCETHTOOL, &ifr);
+	if (err && errno != EOPNOTSUPP) {
+		ret = -errno;
+		goto out;
+	}
+
+	if (err) {
+		/* If the device says it has no channels, then all traffic
+		 * is sent to a single stream, so max queues = 1.
+		 */
+		ret = 1;
+	} else {
+		/* Take the max of rx, tx, combined. Drivers return
+		 * the number of channels in different ways.
+		 */
+		ret = max(channels.max_rx, channels.max_tx);
+		ret = max(ret, (int)channels.max_combined);
+	}
+
+out:
+	close(fd);
+	return ret;
+}
+
+static int xsk_create_bpf_maps(struct xsk_socket *xsk)
+{
+	struct xsk_ctx *ctx = xsk->ctx;
+	int max_queues;
+	int fd;
+
+	max_queues = xsk_get_max_queues(xsk);
+	if (max_queues < 0)
+		return max_queues;
+
+	fd = bpf_map_create(BPF_MAP_TYPE_XSKMAP, "xsks_map",
+			    sizeof(int), sizeof(int), max_queues, NULL);
+	if (fd < 0)
+		return fd;
+
+	ctx->xsks_map_fd = fd;
+
+	return 0;
+}
+
+static void xsk_delete_bpf_maps(struct xsk_socket *xsk)
+{
+	struct xsk_ctx *ctx = xsk->ctx;
+
+	bpf_map_delete_elem(ctx->xsks_map_fd, &ctx->queue_id);
+	close(ctx->xsks_map_fd);
+}
+
+static int xsk_lookup_bpf_maps(struct xsk_socket *xsk)
+{
+	__u32 i, *map_ids, num_maps, prog_len = sizeof(struct bpf_prog_info);
+	__u32 map_len = sizeof(struct bpf_map_info);
+	struct bpf_prog_info prog_info = {};
+	struct xsk_ctx *ctx = xsk->ctx;
+	struct bpf_map_info map_info;
+	int fd, err;
+
+	err = bpf_obj_get_info_by_fd(ctx->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(ctx->prog_fd, &prog_info, &prog_len);
+	if (err)
+		goto out_map_ids;
+
+	ctx->xsks_map_fd = -1;
+
+	for (i = 0; i < prog_info.nr_map_ids; i++) {
+		fd = bpf_map_get_fd_by_id(map_ids[i]);
+		if (fd < 0)
+			continue;
+
+		memset(&map_info, 0, map_len);
+		err = bpf_obj_get_info_by_fd(fd, &map_info, &map_len);
+		if (err) {
+			close(fd);
+			continue;
+		}
+
+		if (!strncmp(map_info.name, "xsks_map", sizeof(map_info.name))) {
+			ctx->xsks_map_fd = fd;
+			break;
+		}
+
+		close(fd);
+	}
+
+	if (ctx->xsks_map_fd == -1)
+		err = -ENOENT;
+
+out_map_ids:
+	free(map_ids);
+	return err;
+}
+
+static int xsk_set_bpf_maps(struct xsk_socket *xsk)
+{
+	struct xsk_ctx *ctx = xsk->ctx;
+
+	return bpf_map_update_elem(ctx->xsks_map_fd, &ctx->queue_id,
+				   &xsk->fd, 0);
+}
+
+static int xsk_link_lookup(int ifindex, __u32 *prog_id, int *link_fd)
+{
+	struct bpf_link_info link_info;
+	__u32 link_len;
+	__u32 id = 0;
+	int err;
+	int fd;
+
+	while (true) {
+		err = bpf_link_get_next_id(id, &id);
+		if (err) {
+			if (errno == ENOENT) {
+				err = 0;
+				break;
+			}
+			pr_warn("can't get next link: %s\n", strerror(errno));
+			break;
+		}
+
+		fd = bpf_link_get_fd_by_id(id);
+		if (fd < 0) {
+			if (errno == ENOENT)
+				continue;
+			pr_warn("can't get link by id (%u): %s\n", id, strerror(errno));
+			err = -errno;
+			break;
+		}
+
+		link_len = sizeof(struct bpf_link_info);
+		memset(&link_info, 0, link_len);
+		err = bpf_obj_get_info_by_fd(fd, &link_info, &link_len);
+		if (err) {
+			pr_warn("can't get link info: %s\n", strerror(errno));
+			close(fd);
+			break;
+		}
+		if (link_info.type == BPF_LINK_TYPE_XDP) {
+			if (link_info.xdp.ifindex == ifindex) {
+				*link_fd = fd;
+				if (prog_id)
+					*prog_id = link_info.prog_id;
+				break;
+			}
+		}
+		close(fd);
+	}
+
+	return err;
+}
+
+static bool xsk_probe_bpf_link(void)
+{
+	LIBBPF_OPTS(bpf_link_create_opts, opts, .flags = XDP_FLAGS_SKB_MODE);
+	struct bpf_insn insns[2] = {
+		BPF_MOV64_IMM(BPF_REG_0, XDP_PASS),
+		BPF_EXIT_INSN()
+	};
+	int prog_fd, link_fd = -1, insn_cnt = ARRAY_SIZE(insns);
+	int ifindex_lo = 1;
+	bool ret = false;
+	int err;
+
+	err = xsk_link_lookup(ifindex_lo, NULL, &link_fd);
+	if (err)
+		return ret;
+
+	if (link_fd >= 0)
+		return true;
+
+	prog_fd = bpf_prog_load(BPF_PROG_TYPE_XDP, NULL, "GPL", insns, insn_cnt, NULL);
+	if (prog_fd < 0)
+		return ret;
+
+	link_fd = bpf_link_create(prog_fd, ifindex_lo, BPF_XDP, &opts);
+	close(prog_fd);
+
+	if (link_fd >= 0) {
+		ret = true;
+		close(link_fd);
+	}
+
+	return ret;
+}
+
+static int xsk_create_xsk_struct(int ifindex, struct xsk_socket *xsk)
+{
+	char ifname[IFNAMSIZ];
+	struct xsk_ctx *ctx;
+	char *interface;
+
+	ctx = calloc(1, sizeof(*ctx));
+	if (!ctx)
+		return -ENOMEM;
+
+	interface = if_indextoname(ifindex, &ifname[0]);
+	if (!interface) {
+		free(ctx);
+		return -errno;
+	}
+
+	ctx->ifindex = ifindex;
+	libbpf_strlcpy(ctx->ifname, ifname, IFNAMSIZ);
+
+	xsk->ctx = ctx;
+	xsk->ctx->has_bpf_link = xsk_probe_bpf_link();
+
+	return 0;
+}
+
+static int xsk_init_xdp_res(struct xsk_socket *xsk,
+			    int *xsks_map_fd)
+{
+	struct xsk_ctx *ctx = xsk->ctx;
+	int err;
+
+	err = xsk_create_bpf_maps(xsk);
+	if (err)
+		return err;
+
+	err = xsk_load_xdp_prog(xsk);
+	if (err)
+		goto err_load_xdp_prog;
+
+	if (ctx->has_bpf_link)
+		err = xsk_create_bpf_link(xsk);
+	else
+		err = bpf_xdp_attach(xsk->ctx->ifindex, ctx->prog_fd,
+				     xsk->config.xdp_flags, NULL);
+
+	if (err)
+		goto err_attach_xdp_prog;
+
+	if (!xsk->rx)
+		return err;
+
+	err = xsk_set_bpf_maps(xsk);
+	if (err)
+		goto err_set_bpf_maps;
+
+	return err;
+
+err_set_bpf_maps:
+	if (ctx->has_bpf_link)
+		close(ctx->link_fd);
+	else
+		bpf_xdp_detach(ctx->ifindex, 0, NULL);
+err_attach_xdp_prog:
+	close(ctx->prog_fd);
+err_load_xdp_prog:
+	xsk_delete_bpf_maps(xsk);
+	return err;
+}
+
+static int xsk_lookup_xdp_res(struct xsk_socket *xsk, int *xsks_map_fd, int prog_id)
+{
+	struct xsk_ctx *ctx = xsk->ctx;
+	int err;
+
+	ctx->prog_fd = bpf_prog_get_fd_by_id(prog_id);
+	if (ctx->prog_fd < 0) {
+		err = -errno;
+		goto err_prog_fd;
+	}
+	err = xsk_lookup_bpf_maps(xsk);
+	if (err)
+		goto err_lookup_maps;
+
+	if (!xsk->rx)
+		return err;
+
+	err = xsk_set_bpf_maps(xsk);
+	if (err)
+		goto err_set_maps;
+
+	return err;
+
+err_set_maps:
+	close(ctx->xsks_map_fd);
+err_lookup_maps:
+	close(ctx->prog_fd);
+err_prog_fd:
+	if (ctx->has_bpf_link)
+		close(ctx->link_fd);
+	return err;
+}
+
+static int __xsk_setup_xdp_prog(struct xsk_socket *_xdp, int *xsks_map_fd)
+{
+	struct xsk_socket *xsk = _xdp;
+	struct xsk_ctx *ctx = xsk->ctx;
+	__u32 prog_id = 0;
+	int err;
+
+	if (ctx->has_bpf_link)
+		err = xsk_link_lookup(ctx->ifindex, &prog_id, &ctx->link_fd);
+	else
+		err = bpf_xdp_query_id(ctx->ifindex, xsk->config.xdp_flags, &prog_id);
+
+	if (err)
+		return err;
+
+	err = !prog_id ? xsk_init_xdp_res(xsk, xsks_map_fd) :
+			 xsk_lookup_xdp_res(xsk, xsks_map_fd, prog_id);
+
+	if (!err && xsks_map_fd)
+		*xsks_map_fd = ctx->xsks_map_fd;
+
+	return err;
+}
+
+int xsk_setup_xdp_prog_xsk(struct xsk_socket *xsk, int *xsks_map_fd)
+{
+	return __xsk_setup_xdp_prog(xsk, xsks_map_fd);
+}
+
+static struct xsk_ctx *xsk_get_ctx(struct xsk_umem *umem, int ifindex,
+				   __u32 queue_id)
+{
+	struct xsk_ctx *ctx;
+
+	if (list_empty(&umem->ctx_list))
+		return NULL;
+
+	list_for_each_entry(ctx, &umem->ctx_list, list) {
+		if (ctx->ifindex == ifindex && ctx->queue_id == queue_id) {
+			ctx->refcount++;
+			return ctx;
+		}
+	}
+
+	return NULL;
+}
+
+static void xsk_put_ctx(struct xsk_ctx *ctx, bool unmap)
+{
+	struct xsk_umem *umem = ctx->umem;
+	struct xdp_mmap_offsets off;
+	int err;
+
+	if (--ctx->refcount)
+		return;
+
+	if (!unmap)
+		goto out_free;
+
+	err = xsk_get_mmap_offsets(umem->fd, &off);
+	if (err)
+		goto out_free;
+
+	munmap(ctx->fill->ring - off.fr.desc, off.fr.desc + umem->config.fill_size *
+	       sizeof(__u64));
+	munmap(ctx->comp->ring - off.cr.desc, off.cr.desc + umem->config.comp_size *
+	       sizeof(__u64));
+
+out_free:
+	list_del(&ctx->list);
+	free(ctx);
+}
+
+static struct xsk_ctx *xsk_create_ctx(struct xsk_socket *xsk,
+				      struct xsk_umem *umem, int ifindex,
+				      const char *ifname, __u32 queue_id,
+				      struct xsk_ring_prod *fill,
+				      struct xsk_ring_cons *comp)
+{
+	struct xsk_ctx *ctx;
+	int err;
+
+	ctx = calloc(1, sizeof(*ctx));
+	if (!ctx)
+		return NULL;
+
+	if (!umem->fill_save) {
+		err = xsk_create_umem_rings(umem, xsk->fd, fill, comp);
+		if (err) {
+			free(ctx);
+			return NULL;
+		}
+	} else if (umem->fill_save != fill || umem->comp_save != comp) {
+		/* Copy over rings to new structs. */
+		memcpy(fill, umem->fill_save, sizeof(*fill));
+		memcpy(comp, umem->comp_save, sizeof(*comp));
+	}
+
+	ctx->ifindex = ifindex;
+	ctx->refcount = 1;
+	ctx->umem = umem;
+	ctx->queue_id = queue_id;
+	libbpf_strlcpy(ctx->ifname, ifname, IFNAMSIZ);
+
+	ctx->fill = fill;
+	ctx->comp = comp;
+	list_add(&ctx->list, &umem->ctx_list);
+	ctx->has_bpf_link = xsk_probe_bpf_link();
+	return ctx;
+}
+
+static void xsk_destroy_xsk_struct(struct xsk_socket *xsk)
+{
+	free(xsk->ctx);
+	free(xsk);
+}
+
+int xsk_socket__update_xskmap(struct xsk_socket *xsk, int fd)
+{
+	xsk->ctx->xsks_map_fd = fd;
+	return xsk_set_bpf_maps(xsk);
+}
+
+int xsk_setup_xdp_prog(int ifindex, int *xsks_map_fd)
+{
+	struct xsk_socket *xsk;
+	int res;
+
+	xsk = calloc(1, sizeof(*xsk));
+	if (!xsk)
+		return -ENOMEM;
+
+	res = xsk_create_xsk_struct(ifindex, xsk);
+	if (res) {
+		free(xsk);
+		return -EINVAL;
+	}
+
+	res = __xsk_setup_xdp_prog(xsk, xsks_map_fd);
+
+	xsk_destroy_xsk_struct(xsk);
+
+	return res;
+}
+
+int xsk_socket__create_shared(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,
+			      struct xsk_ring_prod *fill,
+			      struct xsk_ring_cons *comp,
+			      const struct xsk_socket_config *usr_config)
+{
+	bool unmap, rx_setup_done = false, tx_setup_done = false;
+	void *rx_map = NULL, *tx_map = NULL;
+	struct sockaddr_xdp sxdp = {};
+	struct xdp_mmap_offsets off;
+	struct xsk_socket *xsk;
+	struct xsk_ctx *ctx;
+	int err, ifindex;
+
+	if (!umem || !xsk_ptr || !(rx || tx))
+		return -EFAULT;
+
+	unmap = umem->fill_save != fill;
+
+	xsk = calloc(1, sizeof(*xsk));
+	if (!xsk)
+		return -ENOMEM;
+
+	err = xsk_set_xdp_socket_config(&xsk->config, usr_config);
+	if (err)
+		goto out_xsk_alloc;
+
+	xsk->outstanding_tx = 0;
+	ifindex = if_nametoindex(ifname);
+	if (!ifindex) {
+		err = -errno;
+		goto out_xsk_alloc;
+	}
+
+	if (umem->refcount++ > 0) {
+		xsk->fd = socket(AF_XDP, SOCK_RAW | SOCK_CLOEXEC, 0);
+		if (xsk->fd < 0) {
+			err = -errno;
+			goto out_xsk_alloc;
+		}
+	} else {
+		xsk->fd = umem->fd;
+		rx_setup_done = umem->rx_ring_setup_done;
+		tx_setup_done = umem->tx_ring_setup_done;
+	}
+
+	ctx = xsk_get_ctx(umem, ifindex, queue_id);
+	if (!ctx) {
+		if (!fill || !comp) {
+			err = -EFAULT;
+			goto out_socket;
+		}
+
+		ctx = xsk_create_ctx(xsk, umem, ifindex, ifname, queue_id,
+				     fill, comp);
+		if (!ctx) {
+			err = -ENOMEM;
+			goto out_socket;
+		}
+	}
+	xsk->ctx = ctx;
+
+	if (rx && !rx_setup_done) {
+		err = setsockopt(xsk->fd, SOL_XDP, XDP_RX_RING,
+				 &xsk->config.rx_size,
+				 sizeof(xsk->config.rx_size));
+		if (err) {
+			err = -errno;
+			goto out_put_ctx;
+		}
+		if (xsk->fd == umem->fd)
+			umem->rx_ring_setup_done = true;
+	}
+	if (tx && !tx_setup_done) {
+		err = setsockopt(xsk->fd, SOL_XDP, XDP_TX_RING,
+				 &xsk->config.tx_size,
+				 sizeof(xsk->config.tx_size));
+		if (err) {
+			err = -errno;
+			goto out_put_ctx;
+		}
+		if (xsk->fd == umem->fd)
+			umem->tx_ring_setup_done = true;
+	}
+
+	err = xsk_get_mmap_offsets(xsk->fd, &off);
+	if (err) {
+		err = -errno;
+		goto out_put_ctx;
+	}
+
+	if (rx) {
+		rx_map = 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 (rx_map == MAP_FAILED) {
+			err = -errno;
+			goto out_put_ctx;
+		}
+
+		rx->mask = xsk->config.rx_size - 1;
+		rx->size = xsk->config.rx_size;
+		rx->producer = rx_map + off.rx.producer;
+		rx->consumer = rx_map + off.rx.consumer;
+		rx->flags = rx_map + off.rx.flags;
+		rx->ring = rx_map + off.rx.desc;
+		rx->cached_prod = *rx->producer;
+		rx->cached_cons = *rx->consumer;
+	}
+	xsk->rx = rx;
+
+	if (tx) {
+		tx_map = 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 (tx_map == MAP_FAILED) {
+			err = -errno;
+			goto out_mmap_rx;
+		}
+
+		tx->mask = xsk->config.tx_size - 1;
+		tx->size = xsk->config.tx_size;
+		tx->producer = tx_map + off.tx.producer;
+		tx->consumer = tx_map + off.tx.consumer;
+		tx->flags = tx_map + off.tx.flags;
+		tx->ring = tx_map + off.tx.desc;
+		tx->cached_prod = *tx->producer;
+		/* cached_cons is r->size bigger than the real consumer pointer
+		 * See xsk_prod_nb_free
+		 */
+		tx->cached_cons = *tx->consumer + xsk->config.tx_size;
+	}
+	xsk->tx = tx;
+
+	sxdp.sxdp_family = PF_XDP;
+	sxdp.sxdp_ifindex = ctx->ifindex;
+	sxdp.sxdp_queue_id = ctx->queue_id;
+	if (umem->refcount > 1) {
+		sxdp.sxdp_flags |= XDP_SHARED_UMEM;
+		sxdp.sxdp_shared_umem_fd = umem->fd;
+	} else {
+		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, NULL);
+		if (err)
+			goto out_mmap_tx;
+	}
+
+	*xsk_ptr = xsk;
+	umem->fill_save = NULL;
+	umem->comp_save = NULL;
+	return 0;
+
+out_mmap_tx:
+	if (tx)
+		munmap(tx_map, off.tx.desc +
+		       xsk->config.tx_size * sizeof(struct xdp_desc));
+out_mmap_rx:
+	if (rx)
+		munmap(rx_map, off.rx.desc +
+		       xsk->config.rx_size * sizeof(struct xdp_desc));
+out_put_ctx:
+	xsk_put_ctx(ctx, unmap);
+out_socket:
+	if (--umem->refcount)
+		close(xsk->fd);
+out_xsk_alloc:
+	free(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)
+{
+	if (!umem)
+		return -EFAULT;
+
+	return xsk_socket__create_shared(xsk_ptr, ifname, queue_id, umem,
+					 rx, tx, umem->fill_save,
+					 umem->comp_save, usr_config);
+}
+
+int xsk_umem__delete(struct xsk_umem *umem)
+{
+	struct xdp_mmap_offsets off;
+	int err;
+
+	if (!umem)
+		return 0;
+
+	if (umem->refcount)
+		return -EBUSY;
+
+	err = xsk_get_mmap_offsets(umem->fd, &off);
+	if (!err && umem->fill_save && umem->comp_save) {
+		munmap(umem->fill_save->ring - off.fr.desc,
+		       off.fr.desc + umem->config.fill_size * sizeof(__u64));
+		munmap(umem->comp_save->ring - off.cr.desc,
+		       off.cr.desc + umem->config.comp_size * sizeof(__u64));
+	}
+
+	close(umem->fd);
+	free(umem);
+
+	return 0;
+}
+
+void xsk_socket__delete(struct xsk_socket *xsk)
+{
+	size_t desc_sz = sizeof(struct xdp_desc);
+	struct xdp_mmap_offsets off;
+	struct xsk_umem *umem;
+	struct xsk_ctx *ctx;
+	int err;
+
+	if (!xsk)
+		return;
+
+	ctx = xsk->ctx;
+	umem = ctx->umem;
+
+	xsk_put_ctx(ctx, true);
+
+	if (!ctx->refcount) {
+		xsk_delete_bpf_maps(xsk);
+		close(ctx->prog_fd);
+		if (ctx->has_bpf_link)
+			close(ctx->link_fd);
+	}
+
+	err = xsk_get_mmap_offsets(xsk->fd, &off);
+	if (!err) {
+		if (xsk->rx) {
+			munmap(xsk->rx->ring - off.rx.desc,
+			       off.rx.desc + xsk->config.rx_size * desc_sz);
+		}
+		if (xsk->tx) {
+			munmap(xsk->tx->ring - off.tx.desc,
+			       off.tx.desc + xsk->config.tx_size * desc_sz);
+		}
+	}
+
+	umem->refcount--;
+	/* Do not close an fd that also has an associated umem connected
+	 * to it.
+	 */
+	if (xsk->fd != umem->fd)
+		close(xsk->fd);
+	free(xsk);
+}
diff --git a/tools/testing/selftests/bpf/xsk.h b/tools/testing/selftests/bpf/xsk.h
new file mode 100644
index 000000000000..997723b0bfb2
--- /dev/null
+++ b/tools/testing/selftests/bpf/xsk.h
@@ -0,0 +1,316 @@
+/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
+
+/*
+ * AF_XDP user-space access library.
+ *
+ * Copyright (c) 2018 - 2019 Intel Corporation.
+ * Copyright (c) 2019 Facebook
+ *
+ * Author(s): Magnus Karlsson <magnus.karlsson@intel.com>
+ */
+
+#ifndef __XSK_H
+#define __XSK_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <linux/if_xdp.h>
+
+#include <bpf/libbpf.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* This whole API has been deprecated and moved to libxdp that can be found at
+ * https://github.com/xdp-project/xdp-tools. The APIs are exactly the same so
+ * it should just be linking with libxdp instead of libbpf for this set of
+ * functionality. If not, please submit a bug report on the aforementioned page.
+ */
+
+/* Load-Acquire Store-Release barriers used by the XDP socket
+ * library. The following macros should *NOT* be considered part of
+ * the xsk.h API, and is subject to change anytime.
+ *
+ * LIBRARY INTERNAL
+ */
+
+#define __XSK_READ_ONCE(x) (*(volatile typeof(x) *)&x)
+#define __XSK_WRITE_ONCE(x, v) (*(volatile typeof(x) *)&x) = (v)
+
+#if defined(__i386__) || defined(__x86_64__)
+# define libbpf_smp_store_release(p, v)					\
+	do {								\
+		asm volatile("" : : : "memory");			\
+		__XSK_WRITE_ONCE(*p, v);				\
+	} while (0)
+# define libbpf_smp_load_acquire(p)					\
+	({								\
+		typeof(*p) ___p1 = __XSK_READ_ONCE(*p);			\
+		asm volatile("" : : : "memory");			\
+		___p1;							\
+	})
+#elif defined(__aarch64__)
+# define libbpf_smp_store_release(p, v)					\
+		asm volatile ("stlr %w1, %0" : "=Q" (*p) : "r" (v) : "memory")
+# define libbpf_smp_load_acquire(p)					\
+	({								\
+		typeof(*p) ___p1;					\
+		asm volatile ("ldar %w0, %1"				\
+			      : "=r" (___p1) : "Q" (*p) : "memory");	\
+		___p1;							\
+	})
+#elif defined(__riscv)
+# define libbpf_smp_store_release(p, v)					\
+	do {								\
+		asm volatile ("fence rw,w" : : : "memory");		\
+		__XSK_WRITE_ONCE(*p, v);				\
+	} while (0)
+# define libbpf_smp_load_acquire(p)					\
+	({								\
+		typeof(*p) ___p1 = __XSK_READ_ONCE(*p);			\
+		asm volatile ("fence r,rw" : : : "memory");		\
+		___p1;							\
+	})
+#endif
+
+#ifndef libbpf_smp_store_release
+#define libbpf_smp_store_release(p, v)					\
+	do {								\
+		__sync_synchronize();					\
+		__XSK_WRITE_ONCE(*p, v);				\
+	} while (0)
+#endif
+
+#ifndef libbpf_smp_load_acquire
+#define libbpf_smp_load_acquire(p)					\
+	({								\
+		typeof(*p) ___p1 = __XSK_READ_ONCE(*p);			\
+		__sync_synchronize();					\
+		___p1;							\
+	})
+#endif
+
+/* LIBRARY INTERNAL -- END */
+
+/* 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; \
+	__u32 *flags; \
+}
+
+DEFINE_XSK_RING(xsk_ring_prod);
+DEFINE_XSK_RING(xsk_ring_cons);
+
+/* For a detailed explanation on the memory barriers associated with the
+ * ring, please take a look at net/xdp/xsk_queue.h.
+ */
+
+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 int xsk_ring_prod__needs_wakeup(const struct xsk_ring_prod *r)
+{
+	return *r->flags & XDP_RING_NEED_WAKEUP;
+}
+
+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 = libbpf_smp_load_acquire(r->consumer);
+	r->cached_cons += 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 = libbpf_smp_load_acquire(r->producer);
+		entries = r->cached_prod - r->cached_cons;
+	}
+
+	return (entries > nb) ? nb : entries;
+}
+
+static inline __u32 xsk_ring_prod__reserve(struct xsk_ring_prod *prod, __u32 nb, __u32 *idx)
+{
+	if (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, __u32 nb)
+{
+	/* Make sure everything has been written to the ring before indicating
+	 * this to the kernel by writing the producer pointer.
+	 */
+	libbpf_smp_store_release(prod->producer, *prod->producer + nb);
+}
+
+static inline __u32 xsk_ring_cons__peek(struct xsk_ring_cons *cons, __u32 nb, __u32 *idx)
+{
+	__u32 entries = xsk_cons_nb_avail(cons, nb);
+
+	if (entries > 0) {
+		*idx = cons->cached_cons;
+		cons->cached_cons += entries;
+	}
+
+	return entries;
+}
+
+static inline void xsk_ring_cons__cancel(struct xsk_ring_cons *cons, __u32 nb)
+{
+	cons->cached_cons -= nb;
+}
+
+static inline void xsk_ring_cons__release(struct xsk_ring_cons *cons, __u32 nb)
+{
+	/* Make sure data has been read before indicating we are done
+	 * with the entries by updating the consumer pointer.
+	 */
+	libbpf_smp_store_release(cons->consumer, *cons->consumer + nb);
+
+}
+
+static inline void *xsk_umem__get_data(void *umem_area, __u64 addr)
+{
+	return &((char *)umem_area)[addr];
+}
+
+static inline __u64 xsk_umem__extract_addr(__u64 addr)
+{
+	return addr & XSK_UNALIGNED_BUF_ADDR_MASK;
+}
+
+static inline __u64 xsk_umem__extract_offset(__u64 addr)
+{
+	return addr >> XSK_UNALIGNED_BUF_OFFSET_SHIFT;
+}
+
+static inline __u64 xsk_umem__add_offset_to_addr(__u64 addr)
+{
+	return xsk_umem__extract_addr(addr) + xsk_umem__extract_offset(addr);
+}
+
+int xsk_umem__fd(const struct xsk_umem *umem);
+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    12 /* 4096 bytes */
+#define XSK_UMEM__DEFAULT_FRAME_SIZE     (1 << XSK_UMEM__DEFAULT_FRAME_SHIFT)
+#define XSK_UMEM__DEFAULT_FRAME_HEADROOM 0
+#define XSK_UMEM__DEFAULT_FLAGS 0
+
+struct xsk_umem_config {
+	__u32 fill_size;
+	__u32 comp_size;
+	__u32 frame_size;
+	__u32 frame_headroom;
+	__u32 flags;
+};
+
+int xsk_setup_xdp_prog_xsk(struct xsk_socket *xsk, int *xsks_map_fd);
+int xsk_setup_xdp_prog(int ifindex, int *xsks_map_fd);
+int xsk_socket__update_xskmap(struct xsk_socket *xsk, int xsks_map_fd);
+
+/* 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. */
+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);
+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);
+int xsk_socket__create_shared(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,
+			      struct xsk_ring_prod *fill,
+			      struct xsk_ring_cons *comp,
+			      const struct xsk_socket_config *config);
+
+/* Returns 0 for success and -EBUSY if the umem is still in use. */
+int xsk_umem__delete(struct xsk_umem *umem);
+void xsk_socket__delete(struct xsk_socket *xsk);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* __XSK_H */
diff --git a/tools/testing/selftests/bpf/xsk_prereqs.sh b/tools/testing/selftests/bpf/xsk_prereqs.sh
index 684e813803ec..a0b71723a818 100755
--- a/tools/testing/selftests/bpf/xsk_prereqs.sh
+++ b/tools/testing/selftests/bpf/xsk_prereqs.sh
@@ -8,7 +8,7 @@ ksft_xfail=2
 ksft_xpass=3
 ksft_skip=4
 
-XSKOBJ=xdpxceiver
+XSKOBJ=xskxceiver
 
 validate_root_exec()
 {
@@ -77,7 +77,7 @@ validate_ip_utility()
 	[ ! $(type -P ip) ] && { echo "'ip' not found. Skipping tests."; test_exit $ksft_skip; }
 }
 
-execxdpxceiver()
+exec_xskxceiver()
 {
         if [[ $busy_poll -eq 1 ]]; then
 	        ARGS+="-b "
diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index e5992a6b5e09..74d56d971baf 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -97,12 +97,12 @@
 #include <time.h>
 #include <unistd.h>
 #include <stdatomic.h>
-#include <bpf/xsk.h>
-#include "xdpxceiver.h"
+#include "xsk.h"
+#include "xskxceiver.h"
 #include "../kselftest.h"
 
 /* AF_XDP APIs were moved into libxdp and marked as deprecated in libbpf.
- * Until xdpxceiver is either moved or re-writed into libxdp, suppress
+ * Until xskxceiver is either moved or re-writed into libxdp, suppress
  * deprecation warnings in this file
  */
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
@@ -1085,6 +1085,7 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 {
 	u64 umem_sz = ifobject->umem->num_frames * ifobject->umem->frame_size;
 	int mmap_flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
+	LIBBPF_OPTS(bpf_xdp_query_opts, opts);
 	int ret, ifindex;
 	void *bufs;
 	u32 i;
@@ -1130,10 +1131,26 @@ static void thread_common_ops(struct test_spec *test, struct ifobject *ifobject)
 	if (!ifindex)
 		exit_with_error(errno);
 
-	ret = xsk_setup_xdp_prog(ifindex, &ifobject->xsk_map_fd);
+	ret = xsk_setup_xdp_prog_xsk(ifobject->xsk->xsk, &ifobject->xsk_map_fd);
 	if (ret)
 		exit_with_error(-ret);
 
+	ret = bpf_xdp_query(ifindex, ifobject->xdp_flags, &opts);
+	if (ret)
+		exit_with_error(-ret);
+
+	if (ifobject->xdp_flags & XDP_FLAGS_SKB_MODE) {
+		if (opts.attach_mode != XDP_ATTACHED_SKB) {
+			ksft_print_msg("ERROR: [%s] XDP prog not in SKB mode\n");
+			exit_with_error(-EINVAL);
+		}
+	} else if (ifobject->xdp_flags & XDP_FLAGS_DRV_MODE) {
+		if (opts.attach_mode != XDP_ATTACHED_DRV) {
+			ksft_print_msg("ERROR: [%s] XDP prog not in DRV mode\n");
+			exit_with_error(-EINVAL);
+		}
+	}
+
 	ret = xsk_socket__update_xskmap(ifobject->xsk->xsk, ifobject->xsk_map_fd);
 	if (ret)
 		exit_with_error(-ret);
diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h
index 8f672b0fe0e1..3d17053f98e5 100644
--- a/tools/testing/selftests/bpf/xdpxceiver.h
+++ b/tools/testing/selftests/bpf/xskxceiver.h
@@ -2,8 +2,8 @@
  * Copyright(c) 2020 Intel Corporation.
  */
 
-#ifndef XDPXCEIVER_H_
-#define XDPXCEIVER_H_
+#ifndef XSKXCEIVER_H_
+#define XSKXCEIVER_H_
 
 #ifndef SOL_XDP
 #define SOL_XDP 283
@@ -169,4 +169,4 @@ pthread_cond_t pacing_cond = PTHREAD_COND_INITIALIZER;
 
 int pkts_in_flight;
 
-#endif				/* XDPXCEIVER_H */
+#endif				/* XSKXCEIVER_H_ */
diff --git a/tools/testing/selftests/drivers/net/dsa/Makefile b/tools/testing/selftests/drivers/net/dsa/Makefile
new file mode 100644
index 000000000000..2a731d5c6d85
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/dsa/Makefile
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0+ OR MIT
+
+TEST_PROGS = bridge_locked_port.sh \
+	bridge_mdb.sh \
+	bridge_mld.sh \
+	bridge_vlan_aware.sh \
+	bridge_vlan_mcast.sh \
+	bridge_vlan_unaware.sh \
+	local_termination.sh \
+	no_forwarding.sh \
+	test_bridge_fdb_stress.sh
+
+TEST_PROGS_EXTENDED := lib.sh
+
+TEST_FILES := forwarding.config
+
+include ../../../lib.mk
diff --git a/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh b/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh
index 08a922d8b86a..224ca3695c89 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/devlink_linecard.sh
@@ -84,6 +84,13 @@ lc_wait_until_port_count_is()
 	busywait "$timeout" until_lc_port_count_is "$port_count" lc_port_count_get "$lc"
 }
 
+lc_nested_devlink_dev_get()
+{
+	local lc=$1
+
+	devlink lc show $DEVLINK_DEV lc $lc -j | jq -e -r ".[][][].nested_devlink"
+}
+
 PROV_UNPROV_TIMEOUT=8000 # ms
 POST_PROV_ACT_TIMEOUT=2000 # ms
 PROV_PORTS_INSTANTIATION_TIMEOUT=15000 # ms
@@ -191,12 +198,30 @@ ports_check()
 	check_err $? "Unexpected port count linecard $lc (got $port_count, expected $expected_port_count)"
 }
 
+lc_dev_info_provisioned_check()
+{
+	local lc=$1
+	local nested_devlink_dev=$2
+	local fixed_hw_revision
+	local running_ini_version
+
+	fixed_hw_revision=$(devlink dev info $nested_devlink_dev -j | \
+			    jq -e -r '.[][].versions.fixed."hw.revision"')
+	check_err $? "Failed to get linecard $lc fixed.hw.revision"
+	log_info "Linecard $lc fixed.hw.revision: \"$fixed_hw_revision\""
+	running_ini_version=$(devlink dev info $nested_devlink_dev -j | \
+			      jq -e -r '.[][].versions.running."ini.version"')
+	check_err $? "Failed to get linecard $lc running.ini.version"
+	log_info "Linecard $lc running.ini.version: \"$running_ini_version\""
+}
+
 provision_test()
 {
 	RET=0
 	local lc
 	local type
 	local state
+	local nested_devlink_dev
 
 	lc=$LC_SLOT
 	supported_types_check $lc
@@ -207,6 +232,11 @@ provision_test()
 	fi
 	provision_one $lc $LC_16X100G_TYPE
 	ports_check $lc $LC_16X100G_PORT_COUNT
+
+	nested_devlink_dev=$(lc_nested_devlink_dev_get $lc)
+	check_err $? "Failed to get nested devlink handle of linecard $lc"
+	lc_dev_info_provisioned_check $lc $nested_devlink_dev
+
 	log_test "Provision"
 }
 
@@ -220,12 +250,32 @@ interface_check()
 	setup_wait
 }
 
+lc_dev_info_active_check()
+{
+	local lc=$1
+	local nested_devlink_dev=$2
+	local fixed_device_fw_psid
+	local running_device_fw
+
+	fixed_device_fw_psid=$(devlink dev info $nested_devlink_dev -j | \
+			       jq -e -r ".[][].versions.fixed" | \
+			       jq -e -r '."fw.psid"')
+	check_err $? "Failed to get linecard $lc fixed fw PSID"
+	log_info "Linecard $lc fixed.fw.psid: \"$fixed_device_fw_psid\""
+
+	running_device_fw=$(devlink dev info $nested_devlink_dev -j | \
+			    jq -e -r ".[][].versions.running.fw")
+	check_err $? "Failed to get linecard $lc running.fw.version"
+	log_info "Linecard $lc running.fw: \"$running_device_fw\""
+}
+
 activation_16x100G_test()
 {
 	RET=0
 	local lc
 	local type
 	local state
+	local nested_devlink_dev
 
 	lc=$LC_SLOT
 	type=$LC_16X100G_TYPE
@@ -238,6 +288,10 @@ activation_16x100G_test()
 
 	interface_check
 
+	nested_devlink_dev=$(lc_nested_devlink_dev_get $lc)
+	check_err $? "Failed to get nested devlink handle of linecard $lc"
+	lc_dev_info_active_check $lc $nested_devlink_dev
+
 	log_test "Activation 16x100G"
 }
 
diff --git a/tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh
new file mode 100644
index 000000000000..a43a9926e690
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/rif_counter_scale.sh
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: GPL-2.0
+
+RIF_COUNTER_NUM_NETIFS=2
+
+rif_counter_addr4()
+{
+	local i=$1; shift
+	local p=$1; shift
+
+	printf 192.0.%d.%d $((i / 64)) $(((4 * i % 256) + p))
+}
+
+rif_counter_addr4pfx()
+{
+	rif_counter_addr4 $@
+	printf /30
+}
+
+rif_counter_h1_create()
+{
+	simple_if_init $h1
+}
+
+rif_counter_h1_destroy()
+{
+	simple_if_fini $h1
+}
+
+rif_counter_h2_create()
+{
+	simple_if_init $h2
+}
+
+rif_counter_h2_destroy()
+{
+	simple_if_fini $h2
+}
+
+rif_counter_setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	h2=${NETIFS[p2]}
+
+	vrf_prepare
+
+	rif_counter_h1_create
+	rif_counter_h2_create
+}
+
+rif_counter_cleanup()
+{
+	local count=$1; shift
+
+	pre_cleanup
+
+	for ((i = 1; i <= count; i++)); do
+		vlan_destroy $h2 $i
+	done
+
+	rif_counter_h2_destroy
+	rif_counter_h1_destroy
+
+	vrf_cleanup
+
+	if [[ -v RIF_COUNTER_BATCH_FILE ]]; then
+		rm -f $RIF_COUNTER_BATCH_FILE
+	fi
+}
+
+
+rif_counter_test()
+{
+	local count=$1; shift
+	local should_fail=$1; shift
+
+	RIF_COUNTER_BATCH_FILE="$(mktemp)"
+
+	for ((i = 1; i <= count; i++)); do
+		vlan_create $h2 $i v$h2 $(rif_counter_addr4pfx $i 2)
+	done
+	for ((i = 1; i <= count; i++)); do
+		cat >> $RIF_COUNTER_BATCH_FILE <<-EOF
+			stats set dev $h2.$i l3_stats on
+		EOF
+	done
+
+	ip -b $RIF_COUNTER_BATCH_FILE
+	check_err_fail $should_fail $? "RIF counter enablement"
+}
+
+rif_counter_traffic_test()
+{
+	local count=$1; shift
+	local i;
+
+	for ((i = count; i > 0; i /= 2)); do
+		$MZ $h1 -Q $i -c 1 -d 20msec -p 100 -a own -b $(mac_get $h2) \
+		    -A $(rif_counter_addr4 $i 1) \
+		    -B $(rif_counter_addr4 $i 2) \
+		    -q -t udp sp=54321,dp=12345
+	done
+	for ((i = count; i > 0; i /= 2)); do
+		busywait "$TC_HIT_TIMEOUT" until_counter_is "== 1" \
+			 hw_stats_get l3_stats $h2.$i rx packets > /dev/null
+		check_err $? "Traffic not seen at RIF $h2.$i"
+	done
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
index e9f65bd2e299..688338bbeb97 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/resource_scale.sh
@@ -25,7 +25,16 @@ cleanup()
 
 trap cleanup EXIT
 
-ALL_TESTS="router tc_flower mirror_gre tc_police port rif_mac_profile"
+ALL_TESTS="
+	router
+	tc_flower
+	mirror_gre
+	tc_police
+	port
+	rif_mac_profile
+	rif_counter
+"
+
 for current_test in ${TESTS:-$ALL_TESTS}; do
 	RET_FIN=0
 	source ${current_test}_scale.sh
@@ -36,16 +45,32 @@ for current_test in ${TESTS:-$ALL_TESTS}; do
 	for should_fail in 0 1; do
 		RET=0
 		target=$(${current_test}_get_target "$should_fail")
+		if ((target == 0)); then
+			log_test_skip "'$current_test' should_fail=$should_fail test"
+			continue
+		fi
+
 		${current_test}_setup_prepare
 		setup_wait $num_netifs
+		# Update target in case occupancy of a certain resource changed
+		# following the test setup.
+		target=$(${current_test}_get_target "$should_fail")
 		${current_test}_test "$target" "$should_fail"
-		${current_test}_cleanup
-		devlink_reload
 		if [[ "$should_fail" -eq 0 ]]; then
 			log_test "'$current_test' $target"
+
+			if ((!RET)); then
+				tt=${current_test}_traffic_test
+				if [[ $(type -t $tt) == "function" ]]; then
+					$tt "$target"
+					log_test "'$current_test' $target traffic test"
+				fi
+			fi
 		else
 			log_test "'$current_test' overflow $target"
 		fi
+		${current_test}_cleanup $target
+		devlink_reload
 		RET_FIN=$(( RET_FIN || RET ))
 	done
 done
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_counter_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_counter_scale.sh
new file mode 120000
index 000000000000..1f5752e8ffc0
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/rif_counter_scale.sh
@@ -0,0 +1 @@
+../spectrum/rif_counter_scale.sh
+\ No newline at end of file
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
index efd798a85931..4444bbace1a9 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum-2/tc_flower_scale.sh
@@ -4,17 +4,22 @@ source ../tc_flower_scale.sh
 tc_flower_get_target()
 {
 	local should_fail=$1; shift
+	local max_cnts
 
 	# The driver associates a counter with each tc filter, which means the
 	# number of supported filters is bounded by the number of available
 	# counters.
-	# Currently, the driver supports 30K (30,720) flow counters and six of
-	# these are used for multicast routing.
-	local target=30714
+	max_cnts=$(devlink_resource_size_get counters flow)
+
+	# Remove already allocated counters.
+	((max_cnts -= $(devlink_resource_occ_get counters flow)))
+
+	# Each rule uses two counters, for packets and bytes.
+	((max_cnts /= 2))
 
 	if ((! should_fail)); then
-		echo $target
+		echo $max_cnts
 	else
-		echo $((target + 1))
+		echo $((max_cnts + 1))
 	fi
 }
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh
index dea33dc93790..95d9f710a630 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/resource_scale.sh
@@ -22,7 +22,16 @@ cleanup()
 devlink_sp_read_kvd_defaults
 trap cleanup EXIT
 
-ALL_TESTS="router tc_flower mirror_gre tc_police port rif_mac_profile"
+ALL_TESTS="
+	router
+	tc_flower
+	mirror_gre
+	tc_police
+	port
+	rif_mac_profile
+	rif_counter
+"
+
 for current_test in ${TESTS:-$ALL_TESTS}; do
 	RET_FIN=0
 	source ${current_test}_scale.sh
@@ -41,15 +50,31 @@ for current_test in ${TESTS:-$ALL_TESTS}; do
 		for should_fail in 0 1; do
 			RET=0
 			target=$(${current_test}_get_target "$should_fail")
+			if ((target == 0)); then
+				log_test_skip "'$current_test' [$profile] should_fail=$should_fail test"
+				continue
+			fi
 			${current_test}_setup_prepare
 			setup_wait $num_netifs
+			# Update target in case occupancy of a certain resource
+			# changed following the test setup.
+			target=$(${current_test}_get_target "$should_fail")
 			${current_test}_test "$target" "$should_fail"
-			${current_test}_cleanup
 			if [[ "$should_fail" -eq 0 ]]; then
 				log_test "'$current_test' [$profile] $target"
+
+				if ((!RET)); then
+					tt=${current_test}_traffic_test
+					if [[ $(type -t $tt) == "function" ]]
+					then
+						$tt "$target"
+						log_test "'$current_test' [$profile] $target traffic test"
+					fi
+				fi
 			else
 				log_test "'$current_test' [$profile] overflow $target"
 			fi
+			${current_test}_cleanup $target
 			RET_FIN=$(( RET_FIN || RET ))
 		done
 	done
diff --git a/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh
new file mode 100644
index 000000000000..d44536276e8a
--- /dev/null
+++ b/tools/testing/selftests/drivers/net/mlxsw/spectrum/rif_counter_scale.sh
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0
+source ../rif_counter_scale.sh
+
+rif_counter_get_target()
+{
+	local should_fail=$1; shift
+	local max_cnts
+	local max_rifs
+	local target
+
+	max_rifs=$(devlink_resource_size_get rifs)
+	max_cnts=$(devlink_resource_size_get counters rif)
+
+	# Remove already allocated RIFs.
+	((max_rifs -= $(devlink_resource_occ_get rifs)))
+
+	# 10 KVD slots per counter, ingress+egress counters per RIF
+	((max_cnts /= 20))
+
+	# Pointless to run the overflow test if we don't have enough RIFs to
+	# host all the counters.
+	if ((max_cnts > max_rifs && should_fail)); then
+		echo 0
+		return
+	fi
+
+	target=$((max_rifs < max_cnts ? max_rifs : max_cnts))
+
+	if ((! should_fail)); then
+		echo $target
+	else
+		echo $((target + 1))
+	fi
+}
diff --git a/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh b/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
index aa74be9f47c8..d3d9e60d6ddf 100644
--- a/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/tc_flower_scale.sh
@@ -77,6 +77,7 @@ tc_flower_rules_create()
 			filter add dev $h2 ingress \
 				prot ipv6 \
 				pref 1000 \
+				handle 42$i \
 				flower $tcflags dst_ip $(tc_flower_addr $i) \
 				action drop
 		EOF
@@ -121,3 +122,19 @@ tc_flower_test()
 	tcflags="skip_sw"
 	__tc_flower_test $count $should_fail
 }
+
+tc_flower_traffic_test()
+{
+	local count=$1; shift
+	local i;
+
+	for ((i = count - 1; i > 0; i /= 2)); do
+		$MZ -6 $h1 -c 1 -d 20msec -p 100 -a own -b $(mac_get $h2) \
+		    -A $(tc_flower_addr 0) -B $(tc_flower_addr $i) \
+		    -q -t udp sp=54321,dp=12345
+	done
+	for ((i = count - 1; i > 0; i /= 2)); do
+		tc_check_packets "dev $h2 ingress" 42$i 1
+		check_err $? "Traffic not seen at rule #$i"
+	done
+}
diff --git a/tools/testing/selftests/drivers/net/netdevsim/fib.sh b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
index fc794cd30389..6800de816e8b 100755
--- a/tools/testing/selftests/drivers/net/netdevsim/fib.sh
+++ b/tools/testing/selftests/drivers/net/netdevsim/fib.sh
@@ -16,6 +16,7 @@ ALL_TESTS="
 	ipv4_replay
 	ipv4_flush
 	ipv4_error_path
+	ipv4_delete_fail
 	ipv6_add
 	ipv6_metric
 	ipv6_append_single
@@ -29,11 +30,13 @@ ALL_TESTS="
 	ipv6_replay_single
 	ipv6_replay_multipath
 	ipv6_error_path
+	ipv6_delete_fail
 "
 NETDEVSIM_PATH=/sys/bus/netdevsim/
 DEV_ADDR=1337
 DEV=netdevsim${DEV_ADDR}
 SYSFS_NET_DIR=/sys/bus/netdevsim/devices/$DEV/net/
+DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/
 NUM_NETIFS=0
 source $lib_dir/lib.sh
 source $lib_dir/fib_offload_lib.sh
@@ -157,6 +160,27 @@ ipv4_error_path()
 	ipv4_error_path_replay
 }
 
+ipv4_delete_fail()
+{
+	RET=0
+
+	echo "y" > $DEBUGFS_DIR/fib/fail_route_delete
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	ip -n testns1 route add 192.0.2.0/24 dev dummy1
+	ip -n testns1 route del 192.0.2.0/24 dev dummy1 &> /dev/null
+
+	# We should not be able to delete the netdev if we are leaking a
+	# reference.
+	ip -n testns1 link del dev dummy1
+
+	log_test "IPv4 route delete failure"
+
+	echo "n" > $DEBUGFS_DIR/fib/fail_route_delete
+}
+
 ipv6_add()
 {
 	fib_ipv6_add_test "testns1"
@@ -304,6 +328,27 @@ ipv6_error_path()
 	ipv6_error_path_replay
 }
 
+ipv6_delete_fail()
+{
+	RET=0
+
+	echo "y" > $DEBUGFS_DIR/fib/fail_route_delete
+
+	ip -n testns1 link add name dummy1 type dummy
+	ip -n testns1 link set dev dummy1 up
+
+	ip -n testns1 route add 2001:db8:1::/64 dev dummy1
+	ip -n testns1 route del 2001:db8:1::/64 dev dummy1 &> /dev/null
+
+	# We should not be able to delete the netdev if we are leaking a
+	# reference.
+	ip -n testns1 link del dev dummy1
+
+	log_test "IPv6 route delete failure"
+
+	echo "n" > $DEBUGFS_DIR/fib/fail_route_delete
+}
+
 fib_notify_on_flag_change_set()
 {
 	local notify=$1; shift
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
index ffc35a22e914..892306bdb47d 100644
--- a/tools/testing/selftests/net/.gitignore
+++ b/tools/testing/selftests/net/.gitignore
@@ -38,3 +38,4 @@ ioam6_parser
 toeplitz
 tun
 cmsg_sender
+unix_connect
+\ No newline at end of file
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index d0460a969060..e2dfef8b78a7 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -35,9 +35,12 @@ TEST_PROGS += cmsg_time.sh cmsg_ipv6.sh
 TEST_PROGS += srv6_end_dt46_l3vpn_test.sh
 TEST_PROGS += srv6_end_dt4_l3vpn_test.sh
 TEST_PROGS += srv6_end_dt6_l3vpn_test.sh
+TEST_PROGS += srv6_hencap_red_l3vpn_test.sh
+TEST_PROGS += srv6_hl2encap_red_l2vpn_test.sh
 TEST_PROGS += vrf_strict_mode_test.sh
 TEST_PROGS += arp_ndisc_evict_nocarrier.sh
 TEST_PROGS += ndisc_unsolicited_na_test.sh
+TEST_PROGS += arp_ndisc_untracked_subnets.sh
 TEST_PROGS += stress_reuseport_listen.sh
 TEST_PROGS_EXTENDED := in_netns.sh setup_loopback.sh setup_veth.sh
 TEST_PROGS_EXTENDED += toeplitz_client.sh toeplitz.sh
diff --git a/tools/testing/selftests/net/af_unix/Makefile b/tools/testing/selftests/net/af_unix/Makefile
index df341648f818..969620ae9928 100644
--- a/tools/testing/selftests/net/af_unix/Makefile
+++ b/tools/testing/selftests/net/af_unix/Makefile
@@ -1,2 +1,3 @@
-TEST_GEN_PROGS := test_unix_oob
+TEST_GEN_PROGS := test_unix_oob unix_connect
+
 include ../../lib.mk
diff --git a/tools/testing/selftests/net/af_unix/unix_connect.c b/tools/testing/selftests/net/af_unix/unix_connect.c
new file mode 100644
index 000000000000..d799fd8f5c7c
--- /dev/null
+++ b/tools/testing/selftests/net/af_unix/unix_connect.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#define _GNU_SOURCE
+#include <sched.h>
+
+#include <stddef.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include "../../kselftest_harness.h"
+
+FIXTURE(unix_connect)
+{
+	int server, client;
+	int family;
+};
+
+FIXTURE_VARIANT(unix_connect)
+{
+	int type;
+	char sun_path[8];
+	int len;
+	int flags;
+	int err;
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_pathname)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_abstract)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_pathname_netns)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = CLONE_NEWNET,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, stream_abstract_netns)
+{
+	.type = SOCK_STREAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = CLONE_NEWNET,
+	.err = ECONNREFUSED,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_pathname)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_abstract)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = 0,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_pathname_netns)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "test",
+	.len = 4 + 1,
+	.flags = CLONE_NEWNET,
+	.err = 0,
+};
+
+FIXTURE_VARIANT_ADD(unix_connect, dgram_abstract_netns)
+{
+	.type = SOCK_DGRAM,
+	.sun_path = "\0test",
+	.len = 5,
+	.flags = CLONE_NEWNET,
+	.err = ECONNREFUSED,
+};
+
+FIXTURE_SETUP(unix_connect)
+{
+	self->family = AF_UNIX;
+}
+
+FIXTURE_TEARDOWN(unix_connect)
+{
+	close(self->server);
+	close(self->client);
+
+	if (variant->sun_path[0])
+		remove("test");
+}
+
+TEST_F(unix_connect, test)
+{
+	socklen_t addrlen;
+	struct sockaddr_un addr = {
+		.sun_family = self->family,
+	};
+	int err;
+
+	self->server = socket(self->family, variant->type, 0);
+	ASSERT_NE(-1, self->server);
+
+	addrlen = offsetof(struct sockaddr_un, sun_path) + variant->len;
+	memcpy(&addr.sun_path, variant->sun_path, variant->len);
+
+	err = bind(self->server, (struct sockaddr *)&addr, addrlen);
+	ASSERT_EQ(0, err);
+
+	if (variant->type == SOCK_STREAM) {
+		err = listen(self->server, 32);
+		ASSERT_EQ(0, err);
+	}
+
+	err = unshare(variant->flags);
+	ASSERT_EQ(0, err);
+
+	self->client = socket(self->family, variant->type, 0);
+	ASSERT_LT(0, self->client);
+
+	err = connect(self->client, (struct sockaddr *)&addr, addrlen);
+	ASSERT_EQ(variant->err, err == -1 ? errno : 0);
+}
+
+TEST_HARNESS_MAIN
diff --git a/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
new file mode 100755
index 000000000000..c899b446acb6
--- /dev/null
+++ b/tools/testing/selftests/net/arp_ndisc_untracked_subnets.sh
@@ -0,0 +1,308 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# 2 namespaces: one host and one router. Use arping from the host to send a
+# garp to the router. Router accepts or ignores based on its arp_accept
+# or accept_untracked_na configuration.
+
+TESTS="arp ndisc"
+
+ROUTER_NS="ns-router"
+ROUTER_NS_V6="ns-router-v6"
+ROUTER_INTF="veth-router"
+ROUTER_ADDR="10.0.10.1"
+ROUTER_ADDR_V6="2001:db8:abcd:0012::1"
+
+HOST_NS="ns-host"
+HOST_NS_V6="ns-host-v6"
+HOST_INTF="veth-host"
+HOST_ADDR="10.0.10.2"
+HOST_ADDR_V6="2001:db8:abcd:0012::2"
+
+SUBNET_WIDTH=24
+PREFIX_WIDTH_V6=64
+
+cleanup() {
+	ip netns del ${HOST_NS}
+	ip netns del ${ROUTER_NS}
+}
+
+cleanup_v6() {
+	ip netns del ${HOST_NS_V6}
+	ip netns del ${ROUTER_NS_V6}
+}
+
+setup() {
+	set -e
+	local arp_accept=$1
+
+	# Set up two namespaces
+	ip netns add ${ROUTER_NS}
+	ip netns add ${HOST_NS}
+
+	# Set up interfaces veth0 and veth1, which are pairs in separate
+	# namespaces. veth0 is veth-router, veth1 is veth-host.
+	# first, set up the inteface's link to the namespace
+	# then, set the interface "up"
+	ip netns exec ${ROUTER_NS} ip link add name ${ROUTER_INTF} \
+		type veth peer name ${HOST_INTF}
+
+	ip netns exec ${ROUTER_NS} ip link set dev ${ROUTER_INTF} up
+	ip netns exec ${ROUTER_NS} ip link set dev ${HOST_INTF} netns ${HOST_NS}
+
+	ip netns exec ${HOST_NS} ip link set dev ${HOST_INTF} up
+	ip netns exec ${ROUTER_NS} ip addr add ${ROUTER_ADDR}/${SUBNET_WIDTH} \
+		dev ${ROUTER_INTF}
+
+	ip netns exec ${HOST_NS} ip addr add ${HOST_ADDR}/${SUBNET_WIDTH} \
+		dev ${HOST_INTF}
+	ip netns exec ${HOST_NS} ip route add default via ${HOST_ADDR} \
+		dev ${HOST_INTF}
+	ip netns exec ${ROUTER_NS} ip route add default via ${ROUTER_ADDR} \
+		dev ${ROUTER_INTF}
+
+	ROUTER_CONF=net.ipv4.conf.${ROUTER_INTF}
+	ip netns exec ${ROUTER_NS} sysctl -w \
+		${ROUTER_CONF}.arp_accept=${arp_accept} >/dev/null 2>&1
+	set +e
+}
+
+setup_v6() {
+	set -e
+	local accept_untracked_na=$1
+
+	# Set up two namespaces
+	ip netns add ${ROUTER_NS_V6}
+	ip netns add ${HOST_NS_V6}
+
+	# Set up interfaces veth0 and veth1, which are pairs in separate
+	# namespaces. veth0 is veth-router, veth1 is veth-host.
+	# first, set up the inteface's link to the namespace
+	# then, set the interface "up"
+	ip -6 -netns ${ROUTER_NS_V6} link add name ${ROUTER_INTF} \
+		type veth peer name ${HOST_INTF}
+
+	ip -6 -netns ${ROUTER_NS_V6} link set dev ${ROUTER_INTF} up
+	ip -6 -netns ${ROUTER_NS_V6} link set dev ${HOST_INTF} netns \
+		${HOST_NS_V6}
+
+	ip -6 -netns ${HOST_NS_V6} link set dev ${HOST_INTF} up
+	ip -6 -netns ${ROUTER_NS_V6} addr add \
+		${ROUTER_ADDR_V6}/${PREFIX_WIDTH_V6} dev ${ROUTER_INTF} nodad
+
+	HOST_CONF=net.ipv6.conf.${HOST_INTF}
+	ip netns exec ${HOST_NS_V6} sysctl -qw ${HOST_CONF}.ndisc_notify=1
+	ip netns exec ${HOST_NS_V6} sysctl -qw ${HOST_CONF}.disable_ipv6=0
+	ip -6 -netns ${HOST_NS_V6} addr add ${HOST_ADDR_V6}/${PREFIX_WIDTH_V6} \
+		dev ${HOST_INTF}
+
+	ROUTER_CONF=net.ipv6.conf.${ROUTER_INTF}
+
+	ip netns exec ${ROUTER_NS_V6} sysctl -w \
+		${ROUTER_CONF}.forwarding=1 >/dev/null 2>&1
+	ip netns exec ${ROUTER_NS_V6} sysctl -w \
+		${ROUTER_CONF}.drop_unsolicited_na=0 >/dev/null 2>&1
+	ip netns exec ${ROUTER_NS_V6} sysctl -w \
+		${ROUTER_CONF}.accept_untracked_na=${accept_untracked_na} \
+		>/dev/null 2>&1
+	set +e
+}
+
+verify_arp() {
+	local arp_accept=$1
+	local same_subnet=$2
+
+	neigh_show_output=$(ip netns exec ${ROUTER_NS} ip neigh get \
+		${HOST_ADDR} dev ${ROUTER_INTF} 2>/dev/null)
+
+	if [ ${arp_accept} -eq 1 ]; then
+		# Neighbor entries expected
+		[[ ${neigh_show_output} ]]
+	elif [ ${arp_accept} -eq 2 ]; then
+		if [ ${same_subnet} -eq 1 ]; then
+			# Neighbor entries expected
+			[[ ${neigh_show_output} ]]
+		else
+			[[ -z "${neigh_show_output}" ]]
+		fi
+	else
+		[[ -z "${neigh_show_output}" ]]
+	fi
+ }
+
+arp_test_gratuitous() {
+	set -e
+	local arp_accept=$1
+	local same_subnet=$2
+
+	if [ ${arp_accept} -eq 2 ]; then
+		test_msg=("test_arp: "
+			  "accept_arp=$1 "
+			  "same_subnet=$2")
+		if [ ${same_subnet} -eq 0 ]; then
+			HOST_ADDR=10.0.11.3
+		else
+			HOST_ADDR=10.0.10.3
+		fi
+	else
+		test_msg=("test_arp: "
+			  "accept_arp=$1")
+	fi
+	# Supply arp_accept option to set up which sets it in sysctl
+	setup ${arp_accept}
+	ip netns exec ${HOST_NS} arping -A -U ${HOST_ADDR} -c1 2>&1 >/dev/null
+
+	if verify_arp $1 $2; then
+		printf "    TEST: %-60s  [ OK ]\n" "${test_msg[*]}"
+	else
+		printf "    TEST: %-60s  [FAIL]\n" "${test_msg[*]}"
+	fi
+	cleanup
+	set +e
+}
+
+arp_test_gratuitous_combinations() {
+	arp_test_gratuitous 0
+	arp_test_gratuitous 1
+	arp_test_gratuitous 2 0 # Second entry indicates subnet or not
+	arp_test_gratuitous 2 1
+}
+
+cleanup_tcpdump() {
+	set -e
+	[[ ! -z  ${tcpdump_stdout} ]] && rm -f ${tcpdump_stdout}
+	[[ ! -z  ${tcpdump_stderr} ]] && rm -f ${tcpdump_stderr}
+	tcpdump_stdout=
+	tcpdump_stderr=
+	set +e
+}
+
+start_tcpdump() {
+	set -e
+	tcpdump_stdout=`mktemp`
+	tcpdump_stderr=`mktemp`
+	ip netns exec ${ROUTER_NS_V6} timeout 15s \
+		tcpdump --immediate-mode -tpni ${ROUTER_INTF} -c 1 \
+		"icmp6 && icmp6[0] == 136 && src ${HOST_ADDR_V6}" \
+		> ${tcpdump_stdout} 2> /dev/null
+	set +e
+}
+
+verify_ndisc() {
+	local accept_untracked_na=$1
+	local same_subnet=$2
+
+	neigh_show_output=$(ip -6 -netns ${ROUTER_NS_V6} neigh show \
+		to ${HOST_ADDR_V6} dev ${ROUTER_INTF} nud stale)
+
+	if [ ${accept_untracked_na} -eq 1 ]; then
+		# Neighbour entry expected to be present
+		[[ ${neigh_show_output} ]]
+	elif [ ${accept_untracked_na} -eq 2 ]; then
+		if [ ${same_subnet} -eq 1 ]; then
+			[[ ${neigh_show_output} ]]
+		else
+			[[ -z "${neigh_show_output}" ]]
+		fi
+	else
+		# Neighbour entry expected to be absent for all other cases
+		[[ -z "${neigh_show_output}" ]]
+	fi
+}
+
+ndisc_test_untracked_advertisements() {
+	set -e
+	test_msg=("test_ndisc: "
+		  "accept_untracked_na=$1")
+
+	local accept_untracked_na=$1
+	local same_subnet=$2
+	if [ ${accept_untracked_na} -eq 2 ]; then
+		test_msg=("test_ndisc: "
+			  "accept_untracked_na=$1 "
+			  "same_subnet=$2")
+		if [ ${same_subnet} -eq 0 ]; then
+			# Not same subnet
+			HOST_ADDR_V6=2000:db8:abcd:0013::4
+		else
+			HOST_ADDR_V6=2001:db8:abcd:0012::3
+		fi
+	fi
+	setup_v6 $1 $2
+	start_tcpdump
+
+	if verify_ndisc $1 $2; then
+		printf "    TEST: %-60s  [ OK ]\n" "${test_msg[*]}"
+	else
+		printf "    TEST: %-60s  [FAIL]\n" "${test_msg[*]}"
+	fi
+
+	cleanup_tcpdump
+	cleanup_v6
+	set +e
+}
+
+ndisc_test_untracked_combinations() {
+	ndisc_test_untracked_advertisements 0
+	ndisc_test_untracked_advertisements 1
+	ndisc_test_untracked_advertisements 2 0
+	ndisc_test_untracked_advertisements 2 1
+}
+
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+	-t <test>       Test(s) to run (default: all)
+			(options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
+
+if [ "$(id -u)" -ne 0 ];then
+	echo "SKIP: Need root privileges"
+	exit $ksft_skip;
+fi
+
+if [ ! -x "$(command -v ip)" ]; then
+	echo "SKIP: Could not run test without ip tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v tcpdump)" ]; then
+	echo "SKIP: Could not run test without tcpdump tool"
+	exit $ksft_skip
+fi
+
+if [ ! -x "$(command -v arping)" ]; then
+	echo "SKIP: Could not run test without arping tool"
+	exit $ksft_skip
+fi
+
+# start clean
+cleanup &> /dev/null
+cleanup_v6 &> /dev/null
+
+for t in $TESTS
+do
+	case $t in
+	arp_test_gratuitous_combinations|arp) arp_test_gratuitous_combinations;;
+	ndisc_test_untracked_combinations|ndisc) \
+		ndisc_test_untracked_combinations;;
+	help) echo "Test names: $TESTS"; exit 0;;
+esac
+done
diff --git a/tools/testing/selftests/net/cmsg_sender.c b/tools/testing/selftests/net/cmsg_sender.c
index bc2162909a1a..75dd83e39207 100644
--- a/tools/testing/selftests/net/cmsg_sender.c
+++ b/tools/testing/selftests/net/cmsg_sender.c
@@ -456,7 +456,7 @@ int main(int argc, char *argv[])
 		buf[1] = 0;
 	} else if (opt.sock.type == SOCK_RAW) {
 		struct udphdr hdr = { 1, 2, htons(opt.size), 0 };
-		struct sockaddr_in6 *sin6 = (void *)ai->ai_addr;;
+		struct sockaddr_in6 *sin6 = (void *)ai->ai_addr;
 
 		memcpy(buf, &hdr, sizeof(hdr));
 		sin6->sin6_port = htons(opt.sock.proto);
diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh
index bbe3b379927a..c245476fa29d 100755
--- a/tools/testing/selftests/net/fib_rule_tests.sh
+++ b/tools/testing/selftests/net/fib_rule_tests.sh
@@ -303,6 +303,29 @@ run_fibrule_tests()
 	log_section "IPv6 fib rule"
 	fib_rule6_test
 }
+################################################################################
+# usage
+
+usage()
+{
+	cat <<EOF
+usage: ${0##*/} OPTS
+
+        -t <test>   Test(s) to run (default: all)
+                    (options: $TESTS)
+EOF
+}
+
+################################################################################
+# main
+
+while getopts ":t:h" opt; do
+	case $opt in
+		t) TESTS=$OPTARG;;
+		h) usage; exit 0;;
+		*) usage; exit 1;;
+	esac
+done
 
 if [ "$(id -u)" -ne 0 ];then
 	echo "SKIP: Need root privileges"
diff --git a/tools/testing/selftests/net/forwarding/Makefile b/tools/testing/selftests/net/forwarding/Makefile
index 57b84e0c879e..a9c5c1be5088 100644
--- a/tools/testing/selftests/net/forwarding/Makefile
+++ b/tools/testing/selftests/net/forwarding/Makefile
@@ -3,6 +3,7 @@
 TEST_PROGS = bridge_igmp.sh \
 	bridge_locked_port.sh \
 	bridge_mdb.sh \
+	bridge_mdb_port_down.sh \
 	bridge_mld.sh \
 	bridge_port_isolation.sh \
 	bridge_sticky_fdb.sh \
diff --git a/tools/testing/selftests/net/forwarding/bridge_mdb_port_down.sh b/tools/testing/selftests/net/forwarding/bridge_mdb_port_down.sh
new file mode 100755
index 000000000000..1a0480e71d83
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/bridge_mdb_port_down.sh
@@ -0,0 +1,118 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# Verify that permanent mdb entries can be added to and deleted from bridge
+# interfaces that are down, and works correctly when done so.
+
+ALL_TESTS="add_del_to_port_down"
+NUM_NETIFS=4
+
+TEST_GROUP="239.10.10.10"
+TEST_GROUP_MAC="01:00:5e:0a:0a:0a"
+
+source lib.sh
+
+
+add_del_to_port_down() {
+	RET=0
+
+	ip link set dev $swp2 down
+	bridge mdb add dev br0 port "$swp2" grp $TEST_GROUP permanent 2>/dev/null
+	check_err $? "Failed adding mdb entry"
+
+	ip link set dev $swp2 up
+	setup_wait_dev $swp2
+	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
+	check_fail $? "Traffic to $TEST_GROUP wasn't forwarded"
+
+	ip link set dev $swp2 down
+	bridge mdb show dev br0 | grep -q "$TEST_GROUP permanent" 2>/dev/null
+	check_err $? "MDB entry did not persist after link up/down"
+
+	bridge mdb del dev br0 port "$swp2" grp $TEST_GROUP 2>/dev/null
+	check_err $? "Failed deleting mdb entry"
+
+	ip link set dev $swp2 up
+	setup_wait_dev $swp2
+	mcast_packet_test $TEST_GROUP_MAC 192.0.2.1 $TEST_GROUP $h1 $h2
+	check_err $? "Traffic to $TEST_GROUP was forwarded after entry removed"
+
+	log_test "MDB add/del entry to port with state down "
+}
+
+h1_create()
+{
+	simple_if_init $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h1_destroy()
+{
+	simple_if_fini $h1 192.0.2.1/24 2001:db8:1::1/64
+}
+
+h2_create()
+{
+	simple_if_init $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+h2_destroy()
+{
+	simple_if_fini $h2 192.0.2.2/24 2001:db8:1::2/64
+}
+
+switch_create()
+{
+	# Enable multicast filtering
+	ip link add dev br0 type bridge mcast_snooping 1 mcast_querier 1
+
+	ip link set dev $swp1 master br0
+	ip link set dev $swp2 master br0
+
+	ip link set dev br0 up
+	ip link set dev $swp1 up
+
+	bridge link set dev $swp2 mcast_flood off
+	# Bridge currently has a "grace time" at creation time before it
+	# forwards multicast according to the mdb. Since we disable the
+	# mcast_flood setting per port
+	sleep 10
+}
+
+switch_destroy()
+{
+	ip link set dev $swp1 down
+	ip link set dev $swp2 down
+	ip link del dev br0
+}
+
+setup_prepare()
+{
+	h1=${NETIFS[p1]}
+	swp1=${NETIFS[p2]}
+
+	swp2=${NETIFS[p3]}
+	h2=${NETIFS[p4]}
+
+	vrf_prepare
+
+	h1_create
+	h2_create
+	switch_create
+}
+
+cleanup()
+{
+	pre_cleanup
+
+	switch_destroy
+	h1_destroy
+	h2_destroy
+
+	vrf_cleanup
+}
+
+trap cleanup EXIT
+
+setup_prepare
+tests_run
+exit $EXIT_STATUS
diff --git a/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh b/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh
index 4b42dfd4efd1..072faa77f53b 100755
--- a/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh
+++ b/tools/testing/selftests/net/forwarding/ethtool_extended_state.sh
@@ -11,6 +11,8 @@ NUM_NETIFS=2
 source lib.sh
 source ethtool_lib.sh
 
+TIMEOUT=$((WAIT_TIMEOUT * 1000)) # ms
+
 setup_prepare()
 {
 	swp1=${NETIFS[p1]}
@@ -18,7 +20,7 @@ setup_prepare()
 	swp3=$NETIF_NO_CABLE
 }
 
-ethtool_extended_state_check()
+ethtool_ext_state()
 {
 	local dev=$1; shift
 	local expected_ext_state=$1; shift
@@ -30,21 +32,27 @@ ethtool_extended_state_check()
 		| sed -e 's/^[[:space:]]*//')
 	ext_state=$(echo $ext_state | cut -d "," -f1)
 
-	[[ $ext_state == $expected_ext_state ]]
-	check_err $? "Expected \"$expected_ext_state\", got \"$ext_state\""
-
-	[[ $ext_substate == $expected_ext_substate ]]
-	check_err $? "Expected \"$expected_ext_substate\", got \"$ext_substate\""
+	if [[ $ext_state != $expected_ext_state ]]; then
+		echo "Expected \"$expected_ext_state\", got \"$ext_state\""
+		return 1
+	fi
+	if [[ $ext_substate != $expected_ext_substate ]]; then
+		echo "Expected \"$expected_ext_substate\", got \"$ext_substate\""
+		return 1
+	fi
 }
 
 autoneg()
 {
+	local msg
+
 	RET=0
 
 	ip link set dev $swp1 up
 
-	sleep 4
-	ethtool_extended_state_check $swp1 "Autoneg" "No partner detected"
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp1 \
+			"Autoneg" "No partner detected")
+	check_err $? "$msg"
 
 	log_test "Autoneg, No partner detected"
 
@@ -53,6 +61,8 @@ autoneg()
 
 autoneg_force_mode()
 {
+	local msg
+
 	RET=0
 
 	ip link set dev $swp1 up
@@ -65,12 +75,13 @@ autoneg_force_mode()
 	ethtool_set $swp1 speed $speed1 autoneg off
 	ethtool_set $swp2 speed $speed2 autoneg off
 
-	sleep 4
-	ethtool_extended_state_check $swp1 "Autoneg" \
-		"No partner detected during force mode"
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp1 \
+			"Autoneg" "No partner detected during force mode")
+	check_err $? "$msg"
 
-	ethtool_extended_state_check $swp2 "Autoneg" \
-		"No partner detected during force mode"
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp2 \
+			"Autoneg" "No partner detected during force mode")
+	check_err $? "$msg"
 
 	log_test "Autoneg, No partner detected during force mode"
 
@@ -83,12 +94,14 @@ autoneg_force_mode()
 
 no_cable()
 {
+	local msg
+
 	RET=0
 
 	ip link set dev $swp3 up
 
-	sleep 1
-	ethtool_extended_state_check $swp3 "No cable"
+	msg=$(busywait $TIMEOUT ethtool_ext_state $swp3 "No cable")
+	check_err $? "$msg"
 
 	log_test "No cable"
 
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
index 28d568c48a73..91e431cd919e 100755
--- a/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh
@@ -141,12 +141,13 @@ switch_create()
 	ip link set dev $swp4 up
 
 	ip link add name br1 type bridge vlan_filtering 1
-	ip link set dev br1 up
-	__addr_add_del br1 add 192.0.2.129/32
-	ip -4 route add 192.0.2.130/32 dev br1
 
 	team_create lag loadbalance $swp3 $swp4
 	ip link set dev lag master br1
+
+	ip link set dev br1 up
+	__addr_add_del br1 add 192.0.2.129/32
+	ip -4 route add 192.0.2.130/32 dev br1
 }
 
 switch_destroy()
diff --git a/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh b/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
index 0727e2012b68..43469c7de118 100755
--- a/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
+++ b/tools/testing/selftests/net/forwarding/vxlan_asymmetric.sh
@@ -525,7 +525,7 @@ arp_suppression()
 
 	log_test "neigh_suppress: on / neigh exists: yes"
 
-	# Delete the neighbour from the the SVI. A single ARP request should be
+	# Delete the neighbour from the SVI. A single ARP request should be
 	# received by the remote VTEP
 	RET=0
 
diff --git a/tools/testing/selftests/net/ioam6.sh b/tools/testing/selftests/net/ioam6.sh
index a2b9fad5a9a6..4ceb401da1bf 100755
--- a/tools/testing/selftests/net/ioam6.sh
+++ b/tools/testing/selftests/net/ioam6.sh
@@ -117,6 +117,8 @@
 #        | Schema Data         |                                     |
 #        +-----------------------------------------------------------+
 
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
 
 ################################################################################
 #                                                                              #
@@ -211,7 +213,7 @@ check_kernel_compatibility()
     echo "SKIP: kernel version probably too old, missing ioam support"
     ip link del veth0 2>/dev/null || true
     ip netns del ioam-tmp-node || true
-    exit 1
+    exit $ksft_skip
   fi
 
   ip -netns ioam-tmp-node route add db02::/64 encap ioam6 mode inline \
@@ -227,7 +229,7 @@ check_kernel_compatibility()
          "without CONFIG_IPV6_IOAM6_LWTUNNEL?"
     ip link del veth0 2>/dev/null || true
     ip netns del ioam-tmp-node || true
-    exit 1
+    exit $ksft_skip
   fi
 
   ip link del veth0 2>/dev/null || true
@@ -752,20 +754,20 @@ nfailed=0
 if [ "$(id -u)" -ne 0 ]
 then
   echo "SKIP: Need root privileges"
-  exit 1
+  exit $ksft_skip
 fi
 
 if [ ! -x "$(command -v ip)" ]
 then
   echo "SKIP: Could not run test without ip tool"
-  exit 1
+  exit $ksft_skip
 fi
 
 ip ioam &>/dev/null
 if [ $? = 1 ]
 then
   echo "SKIP: iproute2 too old, missing ioam command"
-  exit 1
+  exit $ksft_skip
 fi
 
 check_kernel_compatibility
diff --git a/tools/testing/selftests/net/ipv6_flowlabel.c b/tools/testing/selftests/net/ipv6_flowlabel.c
index a7c41375374f..708a9822259d 100644
--- a/tools/testing/selftests/net/ipv6_flowlabel.c
+++ b/tools/testing/selftests/net/ipv6_flowlabel.c
@@ -9,6 +9,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <limits.h>
+#include <linux/icmpv6.h>
 #include <linux/in6.h>
 #include <stdbool.h>
 #include <stdio.h>
@@ -29,26 +30,48 @@
 #ifndef IPV6_FLOWLABEL_MGR
 #define IPV6_FLOWLABEL_MGR 32
 #endif
+#ifndef IPV6_FLOWINFO_SEND
+#define IPV6_FLOWINFO_SEND 33
+#endif
 
 #define FLOWLABEL_WILDCARD	((uint32_t) -1)
 
 static const char cfg_data[]	= "a";
 static uint32_t cfg_label	= 1;
+static bool use_ping;
+static bool use_flowinfo_send;
+
+static struct icmp6hdr icmp6 = {
+	.icmp6_type = ICMPV6_ECHO_REQUEST
+};
+
+static struct sockaddr_in6 addr = {
+	.sin6_family = AF_INET6,
+	.sin6_addr = IN6ADDR_LOOPBACK_INIT,
+};
 
 static void do_send(int fd, bool with_flowlabel, uint32_t flowlabel)
 {
 	char control[CMSG_SPACE(sizeof(flowlabel))] = {0};
 	struct msghdr msg = {0};
-	struct iovec iov = {0};
+	struct iovec iov = {
+		.iov_base = (char *)cfg_data,
+		.iov_len = sizeof(cfg_data)
+	};
 	int ret;
 
-	iov.iov_base = (char *)cfg_data;
-	iov.iov_len = sizeof(cfg_data);
+	if (use_ping) {
+		iov.iov_base = &icmp6;
+		iov.iov_len = sizeof(icmp6);
+	}
 
 	msg.msg_iov = &iov;
 	msg.msg_iovlen = 1;
 
-	if (with_flowlabel) {
+	if (use_flowinfo_send) {
+		msg.msg_name = &addr;
+		msg.msg_namelen = sizeof(addr);
+	} else if (with_flowlabel) {
 		struct cmsghdr *cm;
 
 		cm = (void *)control;
@@ -94,6 +117,8 @@ static void do_recv(int fd, bool with_flowlabel, uint32_t expect)
 	ret = recvmsg(fd, &msg, 0);
 	if (ret == -1)
 		error(1, errno, "recv");
+	if (use_ping)
+		goto parse_cmsg;
 	if (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC))
 		error(1, 0, "recv: truncated");
 	if (ret != sizeof(cfg_data))
@@ -101,6 +126,7 @@ static void do_recv(int fd, bool with_flowlabel, uint32_t expect)
 	if (memcmp(data, cfg_data, sizeof(data)))
 		error(1, 0, "recv: data mismatch");
 
+parse_cmsg:
 	cm = CMSG_FIRSTHDR(&msg);
 	if (with_flowlabel) {
 		if (!cm)
@@ -114,9 +140,11 @@ static void do_recv(int fd, bool with_flowlabel, uint32_t expect)
 		flowlabel = ntohl(*(uint32_t *)CMSG_DATA(cm));
 		fprintf(stderr, "recv with label %u\n", flowlabel);
 
-		if (expect != FLOWLABEL_WILDCARD && expect != flowlabel)
+		if (expect != FLOWLABEL_WILDCARD && expect != flowlabel) {
 			fprintf(stderr, "recv: incorrect flowlabel %u != %u\n",
 					flowlabel, expect);
+			error(1, 0, "recv: flowlabel is wrong");
+		}
 
 	} else {
 		fprintf(stderr, "recv without label\n");
@@ -165,11 +193,17 @@ static void parse_opts(int argc, char **argv)
 {
 	int c;
 
-	while ((c = getopt(argc, argv, "l:")) != -1) {
+	while ((c = getopt(argc, argv, "l:ps")) != -1) {
 		switch (c) {
 		case 'l':
 			cfg_label = strtoul(optarg, NULL, 0);
 			break;
+		case 'p':
+			use_ping = true;
+			break;
+		case 's':
+			use_flowinfo_send = true;
+			break;
 		default:
 			error(1, 0, "%s: parse error", argv[0]);
 		}
@@ -178,27 +212,30 @@ static void parse_opts(int argc, char **argv)
 
 int main(int argc, char **argv)
 {
-	struct sockaddr_in6 addr = {
-		.sin6_family = AF_INET6,
-		.sin6_port = htons(8000),
-		.sin6_addr = IN6ADDR_LOOPBACK_INIT,
-	};
 	const int one = 1;
 	int fdt, fdr;
+	int prot = 0;
+
+	addr.sin6_port = htons(8000);
 
 	parse_opts(argc, argv);
 
-	fdt = socket(PF_INET6, SOCK_DGRAM, 0);
+	if (use_ping) {
+		fprintf(stderr, "attempting to use ping sockets\n");
+		prot = IPPROTO_ICMPV6;
+	}
+
+	fdt = socket(PF_INET6, SOCK_DGRAM, prot);
 	if (fdt == -1)
 		error(1, errno, "socket t");
 
-	fdr = socket(PF_INET6, SOCK_DGRAM, 0);
+	fdr = use_ping ? fdt : socket(PF_INET6, SOCK_DGRAM, 0);
 	if (fdr == -1)
 		error(1, errno, "socket r");
 
 	if (connect(fdt, (void *)&addr, sizeof(addr)))
 		error(1, errno, "connect");
-	if (bind(fdr, (void *)&addr, sizeof(addr)))
+	if (!use_ping && bind(fdr, (void *)&addr, sizeof(addr)))
 		error(1, errno, "bind");
 
 	flowlabel_get(fdt, cfg_label, IPV6_FL_S_EXCL, IPV6_FL_F_CREATE);
@@ -216,13 +253,21 @@ int main(int argc, char **argv)
 		do_recv(fdr, false, 0);
 	}
 
+	if (use_flowinfo_send) {
+		fprintf(stderr, "using IPV6_FLOWINFO_SEND to send label\n");
+		addr.sin6_flowinfo = htonl(cfg_label);
+		if (setsockopt(fdt, SOL_IPV6, IPV6_FLOWINFO_SEND, &one,
+			       sizeof(one)) == -1)
+			error(1, errno, "setsockopt flowinfo_send");
+	}
+
 	fprintf(stderr, "send label\n");
 	do_send(fdt, true, cfg_label);
 	do_recv(fdr, true, cfg_label);
 
 	if (close(fdr))
 		error(1, errno, "close r");
-	if (close(fdt))
+	if (!use_ping && close(fdt))
 		error(1, errno, "close t");
 
 	return 0;
diff --git a/tools/testing/selftests/net/ipv6_flowlabel.sh b/tools/testing/selftests/net/ipv6_flowlabel.sh
index d3bc6442704e..cee95e252bee 100755
--- a/tools/testing/selftests/net/ipv6_flowlabel.sh
+++ b/tools/testing/selftests/net/ipv6_flowlabel.sh
@@ -18,4 +18,20 @@ echo "TEST datapath (with auto-flowlabels)"
 ./in_netns.sh \
   sh -c 'sysctl -q -w net.ipv6.auto_flowlabels=1 && ./ipv6_flowlabel -l 1'
 
+echo "TEST datapath (with ping-sockets)"
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.ipv6.flowlabel_reflect=4 && \
+    sysctl -q -w net.ipv4.ping_group_range="0 2147483647" && \
+    ./ipv6_flowlabel -l 1 -p'
+
+echo "TEST datapath (with flowinfo-send)"
+./in_netns.sh \
+  sh -c './ipv6_flowlabel -l 1 -s'
+
+echo "TEST datapath (with ping-sockets flowinfo-send)"
+./in_netns.sh \
+  sh -c 'sysctl -q -w net.ipv6.flowlabel_reflect=4 && \
+    sysctl -q -w net.ipv4.ping_group_range="0 2147483647" && \
+    ./ipv6_flowlabel -l 1 -p -s'
+
 echo OK. All tests passed
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index a4406b7a8064..ff83ef426df5 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -455,6 +455,12 @@ wait_mpj()
 	done
 }
 
+kill_wait()
+{
+	kill $1 > /dev/null 2>&1
+	wait $1 2>/dev/null
+}
+
 pm_nl_set_limits()
 {
 	local ns=$1
@@ -654,6 +660,11 @@ do_transfer()
 
 	local port=$((10000 + TEST_COUNT - 1))
 	local cappid
+	local userspace_pm=0
+	local evts_ns1
+	local evts_ns1_pid
+	local evts_ns2
+	local evts_ns2_pid
 
 	:> "$cout"
 	:> "$sout"
@@ -690,10 +701,29 @@ do_transfer()
 		extra_args="-r ${speed:6}"
 	fi
 
+	if [[ "${addr_nr_ns1}" = "userspace_"* ]]; then
+		userspace_pm=1
+		addr_nr_ns1=${addr_nr_ns1:10}
+	fi
+
 	if [[ "${addr_nr_ns2}" = "fastclose_"* ]]; then
 		# disconnect
 		extra_args="$extra_args -I ${addr_nr_ns2:10}"
 		addr_nr_ns2=0
+	elif [[ "${addr_nr_ns2}" = "userspace_"* ]]; then
+		userspace_pm=1
+		addr_nr_ns2=${addr_nr_ns2:10}
+	fi
+
+	if [ $userspace_pm -eq 1 ]; then
+		evts_ns1=$(mktemp)
+		evts_ns2=$(mktemp)
+		:> "$evts_ns1"
+		:> "$evts_ns2"
+		ip netns exec ${listener_ns} ./pm_nl_ctl events >> "$evts_ns1" 2>&1 &
+		evts_ns1_pid=$!
+		ip netns exec ${connector_ns} ./pm_nl_ctl events >> "$evts_ns2" 2>&1 &
+		evts_ns2_pid=$!
 	fi
 
 	local local_addr
@@ -748,6 +778,8 @@ do_transfer()
 	if [ $addr_nr_ns1 -gt 0 ]; then
 		local counter=2
 		local add_nr_ns1=${addr_nr_ns1}
+		local id=10
+		local tk
 		while [ $add_nr_ns1 -gt 0 ]; do
 			local addr
 			if is_v6 "${connect_addr}"; then
@@ -755,9 +787,18 @@ do_transfer()
 			else
 				addr="10.0.$counter.1"
 			fi
-			pm_nl_add_endpoint $ns1 $addr flags signal
+			if [ $userspace_pm -eq 0 ]; then
+				pm_nl_add_endpoint $ns1 $addr flags signal
+			else
+				tk=$(sed -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evts_ns1")
+				ip netns exec ${listener_ns} ./pm_nl_ctl ann $addr token $tk id $id
+				sleep 1
+				ip netns exec ${listener_ns} ./pm_nl_ctl rem token $tk id $id
+			fi
+
 			counter=$((counter + 1))
 			add_nr_ns1=$((add_nr_ns1 - 1))
+			id=$((id + 1))
 		done
 	elif [ $addr_nr_ns1 -lt 0 ]; then
 		local rm_nr_ns1=$((-addr_nr_ns1))
@@ -804,6 +845,8 @@ do_transfer()
 	if [ $addr_nr_ns2 -gt 0 ]; then
 		local add_nr_ns2=${addr_nr_ns2}
 		local counter=3
+		local id=20
+		local tk da dp sp
 		while [ $add_nr_ns2 -gt 0 ]; do
 			local addr
 			if is_v6 "${connect_addr}"; then
@@ -811,9 +854,23 @@ do_transfer()
 			else
 				addr="10.0.$counter.2"
 			fi
-			pm_nl_add_endpoint $ns2 $addr flags $flags
+			if [ $userspace_pm -eq 0 ]; then
+				pm_nl_add_endpoint $ns2 $addr flags $flags
+			else
+				tk=$(sed -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$evts_ns2")
+				da=$(sed -n 's/.*\(daddr4:\)\([0-9.]*\).*$/\2/p;q' "$evts_ns2")
+				dp=$(sed -n 's/.*\(dport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts_ns2")
+				ip netns exec ${connector_ns} ./pm_nl_ctl csf lip $addr lid $id \
+									rip $da rport $dp token $tk
+				sleep 1
+				sp=$(grep "type:10" "$evts_ns2" |
+				     sed -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q')
+				ip netns exec ${connector_ns} ./pm_nl_ctl dsf lip $addr lport $sp \
+									rip $da rport $dp token $tk
+			fi
 			counter=$((counter + 1))
 			add_nr_ns2=$((add_nr_ns2 - 1))
+			id=$((id + 1))
 		done
 	elif [ $addr_nr_ns2 -lt 0 ]; then
 		local rm_nr_ns2=$((-addr_nr_ns2))
@@ -890,6 +947,12 @@ do_transfer()
 	    kill $cappid
 	fi
 
+	if [ $userspace_pm -eq 1 ]; then
+		kill_wait $evts_ns1_pid
+		kill_wait $evts_ns2_pid
+		rm -rf $evts_ns1 $evts_ns2
+	fi
+
 	NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
 		nstat | grep Tcp > /tmp/${listener_ns}.out
 	NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
@@ -2365,6 +2428,36 @@ backup_tests()
 		chk_add_nr 1 1
 		chk_prio_nr 1 1
 	fi
+
+	if reset "mpc backup"; then
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
+		run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
+		chk_join_nr 0 0 0
+		chk_prio_nr 0 1
+	fi
+
+	if reset "mpc backup both sides"; then
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow,backup
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
+		run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
+		chk_join_nr 0 0 0
+		chk_prio_nr 1 1
+	fi
+
+	if reset "mpc switch to backup"; then
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
+		chk_join_nr 0 0 0
+		chk_prio_nr 0 1
+	fi
+
+	if reset "mpc switch to backup both sides"; then
+		pm_nl_add_endpoint $ns1 10.0.1.1 flags subflow
+		pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
+		run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
+		chk_join_nr 0 0 0
+		chk_prio_nr 1 1
+	fi
 }
 
 add_addr_ports_tests()
@@ -2810,6 +2903,25 @@ userspace_tests()
 		chk_join_nr 0 0 0
 		chk_rm_nr 0 0
 	fi
+
+	# userspace pm add & remove address
+	if reset "userspace pm add & remove address"; then
+		set_userspace_pm $ns1
+		pm_nl_set_limits $ns2 1 1
+		run_tests $ns1 $ns2 10.0.1.1 0 userspace_1 0 slow
+		chk_join_nr 1 1 1
+		chk_add_nr 1 1
+		chk_rm_nr 1 1 invert
+	fi
+
+	# userspace pm create destroy subflow
+	if reset "userspace pm create destroy subflow"; then
+		set_userspace_pm $ns2
+		pm_nl_set_limits $ns1 0 1
+		run_tests $ns1 $ns2 10.0.1.1 0 0 userspace_1 slow
+		chk_join_nr 1 1 1
+		chk_rm_nr 0 1
+	fi
 }
 
 endpoint_tests()
diff --git a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
index cb79f0719e3b..abddf4c63e79 100644
--- a/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
+++ b/tools/testing/selftests/net/mptcp/pm_nl_ctl.c
@@ -31,7 +31,7 @@
 
 static void syntax(char *argv[])
 {
-	fprintf(stderr, "%s add|get|set|del|flush|dump|accept [<args>]\n", argv[0]);
+	fprintf(stderr, "%s add|ann|rem|csf|dsf|get|set|del|flush|dump|events|listen|accept [<args>]\n", argv[0]);
 	fprintf(stderr, "\tadd [flags signal|subflow|backup|fullmesh] [id <nr>] [dev <name>] <ip>\n");
 	fprintf(stderr, "\tann <local-ip> id <local-id> token <token> [port <local-port>] [dev <name>]\n");
 	fprintf(stderr, "\trem id <local-id> token <token>\n");
diff --git a/tools/testing/selftests/net/mptcp/simult_flows.sh b/tools/testing/selftests/net/mptcp/simult_flows.sh
index f441ff7904fc..ffa13a957a36 100755
--- a/tools/testing/selftests/net/mptcp/simult_flows.sh
+++ b/tools/testing/selftests/net/mptcp/simult_flows.sh
@@ -12,6 +12,7 @@ timeout_test=$((timeout_poll * 2 + 1))
 test_cnt=1
 ret=0
 bail=0
+slack=50
 
 usage() {
 	echo "Usage: $0 [ -b ] [ -c ] [ -d ]"
@@ -52,6 +53,7 @@ setup()
 	cout=$(mktemp)
 	capout=$(mktemp)
 	size=$((2 * 2048 * 4096))
+
 	dd if=/dev/zero of=$small bs=4096 count=20 >/dev/null 2>&1
 	dd if=/dev/zero of=$large bs=4096 count=$((size / 4096)) >/dev/null 2>&1
 
@@ -104,6 +106,16 @@ setup()
 	ip -net "$ns3" route add default via dead:beef:3::2
 
 	ip netns exec "$ns3" ./pm_nl_ctl limits 1 1
+
+	# debug build can slow down measurably the test program
+	# we use quite tight time limit on the run-time, to ensure
+	# maximum B/W usage.
+	# Use kmemleak/lockdep/kasan/prove_locking presence as a rough
+	# estimate for this being a debug kernel and increase the
+	# maximum run-time accordingly. Observed run times for CI builds
+	# running selftests, including kbuild, were used to determine the
+	# amount of time to add.
+	grep -q ' kmemleak_init$\| lockdep_init$\| kasan_init$\| prove_locking$' /proc/kallsyms && slack=$((slack+550))
 }
 
 # $1: ns, $2: port
@@ -241,7 +253,7 @@ run_test()
 
 	# mptcp_connect will do some sleeps to allow the mp_join handshake
 	# completion (see mptcp_connect): 200ms on each side, add some slack
-	time=$((time + 450))
+	time=$((time + 400 + slack))
 
 	printf "%-60s" "$msg"
 	do_transfer $small $large $time
diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index abe3d4ebe554..3229725b64b0 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -37,6 +37,12 @@ rndh=$(stdbuf -o0 -e0 printf %x "$sec")-$(mktemp -u XXXXXX)
 ns1="ns1-$rndh"
 ns2="ns2-$rndh"
 
+kill_wait()
+{
+	kill $1 > /dev/null 2>&1
+	wait $1 2>/dev/null
+}
+
 cleanup()
 {
 	echo "cleanup"
@@ -48,16 +54,16 @@ cleanup()
 		kill -SIGUSR1 $client4_pid > /dev/null 2>&1
 	fi
 	if [ $server4_pid -ne 0 ]; then
-		kill $server4_pid > /dev/null 2>&1
+		kill_wait $server4_pid
 	fi
 	if [ $client6_pid -ne 0 ]; then
 		kill -SIGUSR1 $client6_pid > /dev/null 2>&1
 	fi
 	if [ $server6_pid -ne 0 ]; then
-		kill $server6_pid > /dev/null 2>&1
+		kill_wait $server6_pid
 	fi
 	if [ $evts_pid -ne 0 ]; then
-		kill $evts_pid > /dev/null 2>&1
+		kill_wait $evts_pid
 	fi
 	local netns
 	for netns in "$ns1" "$ns2" ;do
@@ -153,7 +159,7 @@ make_connection()
 	sleep 1
 
 	# Capture client/server attributes from MPTCP connection netlink events
-	kill $client_evts_pid
+	kill_wait $client_evts_pid
 
 	local client_token
 	local client_port
@@ -165,7 +171,7 @@ make_connection()
 	client_port=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
 	client_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
 				      "$client_evts")
-	kill $server_evts_pid
+	kill_wait $server_evts_pid
 	server_token=$(sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 	server_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
 				      "$server_evts")
@@ -286,7 +292,7 @@ test_announce()
 	verify_announce_event "$evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
 			      "$client_addr_id" "$new4_port"
 
-	kill $evts_pid
+	kill_wait $evts_pid
 
 	# Capture events on the network namespace running the client
 	:>"$evts"
@@ -321,7 +327,7 @@ test_announce()
 	verify_announce_event "$evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
 			      "$server_addr_id" "$new4_port"
 
-	kill $evts_pid
+	kill_wait $evts_pid
 	rm -f "$evts"
 }
 
@@ -416,7 +422,7 @@ test_remove()
 	sleep 0.5
 	verify_remove_event "$evts" "$REMOVED" "$server6_token" "$client_addr_id"
 
-	kill $evts_pid
+	kill_wait $evts_pid
 
 	# Capture events on the network namespace running the client
 	:>"$evts"
@@ -449,7 +455,7 @@ test_remove()
 	sleep 0.5
 	verify_remove_event "$evts" "$REMOVED" "$client6_token" "$server_addr_id"
 
-	kill $evts_pid
+	kill_wait $evts_pid
 	rm -f "$evts"
 }
 
@@ -553,7 +559,7 @@ test_subflows()
 			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
 
 	# Delete the listener from the client ns, if one was created
-	kill $listener_pid > /dev/null 2>&1
+	kill_wait $listener_pid
 
 	local sport
 	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
@@ -592,7 +598,7 @@ test_subflows()
 			      "$client_addr_id" "ns1" "ns2"
 
 	# Delete the listener from the client ns, if one was created
-	kill $listener_pid > /dev/null 2>&1
+	kill_wait $listener_pid
 
 	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
 
@@ -631,7 +637,7 @@ test_subflows()
 			      "$client_addr_id" "ns1" "ns2"
 
 	# Delete the listener from the client ns, if one was created
-	kill $listener_pid > /dev/null 2>&1
+	kill_wait $listener_pid
 
 	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
 
@@ -647,7 +653,7 @@ test_subflows()
 	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
 	   "$client4_token" > /dev/null 2>&1
 
-	kill $evts_pid
+	kill_wait $evts_pid
 
 	# Capture events on the network namespace running the client
 	:>"$evts"
@@ -674,7 +680,7 @@ test_subflows()
 			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# Delete the listener from the server ns, if one was created
-	kill $listener_pid> /dev/null 2>&1
+	kill_wait $listener_pid
 
 	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
 
@@ -713,7 +719,7 @@ test_subflows()
 			      "$server_addr_id" "ns2" "ns1"
 
 	# Delete the listener from the server ns, if one was created
-	kill $listener_pid > /dev/null 2>&1
+	kill_wait $listener_pid
 
 	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
 
@@ -750,7 +756,7 @@ test_subflows()
 			      "10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# Delete the listener from the server ns, if one was created
-	kill $listener_pid > /dev/null 2>&1
+	kill_wait $listener_pid
 
 	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
 
@@ -766,7 +772,7 @@ test_subflows()
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
 	   "$server4_token" > /dev/null 2>&1
 
-	kill $evts_pid
+	kill_wait $evts_pid
 	rm -f "$evts"
 }
 
diff --git a/tools/testing/selftests/net/srv6_hencap_red_l3vpn_test.sh b/tools/testing/selftests/net/srv6_hencap_red_l3vpn_test.sh
new file mode 100755
index 000000000000..28a775654b92
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_hencap_red_l3vpn_test.sh
@@ -0,0 +1,879 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+#
+# This script is designed for testing the SRv6 H.Encaps.Red behavior.
+#
+# Below is depicted the IPv6 network of an operator which offers advanced
+# IPv4/IPv6 VPN services to hosts, enabling them to communicate with each
+# other.
+# In this example, hosts hs-1 and hs-2 are connected through an IPv4/IPv6 VPN
+# service, while hs-3 and hs-4 are connected using an IPv6 only VPN.
+#
+# Routers rt-1,rt-2,rt-3 and rt-4 implement IPv4/IPv6 L3 VPN services
+# leveraging the SRv6 architecture. The key components for such VPNs are:
+#
+#   i) The SRv6 H.Encaps.Red behavior applies SRv6 Policies on traffic received
+#      by connected hosts, initiating the VPN tunnel. Such a behavior is an
+#      optimization of the SRv6 H.Encap aiming to reduce the length of the SID
+#      List carried in the pushed SRH. Specifically, the H.Encaps.Red removes
+#      the first SID contained in the SID List (i.e. SRv6 Policy) by storing it
+#      into the IPv6 Destination Address. When a SRv6 Policy is made of only one
+#      SID, the SRv6 H.Encaps.Red behavior omits the SRH at all and pushes that
+#      SID directly into the IPv6 DA;
+#
+#  ii) The SRv6 End behavior advances the active SID in the SID List carried by
+#      the SRH;
+#
+# iii) The SRv6 End.DT46 behavior is used for removing the SRv6 Policy and,
+#      thus, it terminates the VPN tunnel. Such a behavior is capable of
+#      handling, at the same time, both tunneled IPv4 and IPv6 traffic.
+#
+#
+#               cafe::1                      cafe::2
+#              10.0.0.1                     10.0.0.2
+#             +--------+                   +--------+
+#             |        |                   |        |
+#             |  hs-1  |                   |  hs-2  |
+#             |        |                   |        |
+#             +---+----+                   +--- +---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +----+---+
+#             |        |  fcf0:0:1:2::/64  |        |
+#             |  rt-1  +-------------------+  rt-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#                 |      .               .      |
+#                 |  fcf0:0:1:3::/64   .        |
+#                 |          .       .          |
+#                 |            .   .            |
+# fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                 |            .   .            |
+#                 |          .       .          |
+#                 |  fcf0:0:2:4::/64   .        |
+#                 |      .               .      |
+#             +---+----+                   +----+---+
+#             |        |                   |        |
+#             |  rt-4  +-------------------+  rt-3  |
+#             |        |  fcf0:0:3:4::/64  |        |
+#             +---+----+                   +----+---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +--- +---+
+#             |        |                   |        |
+#             |  hs-4  |                   |  hs-3  |
+#             |        |                   |        |
+#             +--------+                   +--------+
+#               cafe::4                      cafe::3
+#              10.0.0.4                     10.0.0.3
+#
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y
+# in the IPv6 operator network.
+#
+# Local SID table
+# ===============
+#
+# Each SRv6 router is configured with a Local SID table in which SIDs are
+# stored. Considering the given SRv6 router rt-x, at least two SIDs are
+# configured in the Local SID table:
+#
+#   Local SID table for SRv6 router rt-x
+#   +----------------------------------------------------------+
+#   |fcff:x::e is associated with the SRv6 End behavior        |
+#   |fcff:x::d46 is associated with the SRv6 End.DT46 behavior |
+#   +----------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved by the operator for implementing SRv6 VPN
+# services. Reachability of SIDs is ensured by proper configuration of the IPv6
+# operator's network and SRv6 routers.
+#
+# # SRv6 Policies
+# ===============
+#
+# An SRv6 ingress router applies SRv6 policies to the traffic received from a
+# connected host. SRv6 policy enforcement consists of encapsulating the
+# received traffic into a new IPv6 packet with a given SID List contained in
+# the SRH.
+#
+# IPv4/IPv6 VPN between hs-1 and hs-2
+# -----------------------------------
+#
+# Hosts hs-1 and hs-2 are connected using dedicated IPv4/IPv6 VPNs.
+# Specifically, packets generated from hs-1 and directed towards hs-2 are
+# handled by rt-1 which applies the following SRv6 Policies:
+#
+#   i.a) IPv6 traffic, SID List=fcff:3::e,fcff:4::e,fcff:2::d46
+#  ii.a) IPv4 traffic, SID List=fcff:2::d46
+#
+# Policy (i.a) steers tunneled IPv6 traffic through SRv6 routers
+# rt-3,rt-4,rt-2. Instead, Policy (ii.a) steers tunneled IPv4 traffic through
+# rt-2.
+# The H.Encaps.Red reduces the SID List (i.a) carried in SRH by removing the
+# first SID (fcff:3::e) and pushing it into the IPv6 DA. In case of IPv4
+# traffic, the H.Encaps.Red omits the presence of SRH at all, since the SID
+# List (ii.a) consists of only one SID that can be stored directly in the IPv6
+# DA.
+#
+# On the reverse path (i.e. from hs-2 to hs-1), rt-2 applies the following
+# policies:
+#
+#   i.b) IPv6 traffic, SID List=fcff:1::d46
+#  ii.b) IPv4 traffic, SID List=fcff:4::e,fcff:3::e,fcff:1::d46
+#
+# Policy (i.b) steers tunneled IPv6 traffic through the SRv6 router rt-1.
+# Conversely, Policy (ii.b) steers tunneled IPv4 traffic through SRv6 routers
+# rt-4,rt-3,rt-1.
+# The H.Encaps.Red omits the SRH at all in case of (i.b) by pushing the single
+# SID (fcff::1::d46) inside the IPv6 DA.
+# The H.Encaps.Red reduces the SID List (ii.b) in the SRH by removing the first
+# SID (fcff:4::e) and pushing it into the IPv6 DA.
+#
+# In summary:
+#  hs-1->hs-2 |IPv6 DA=fcff:3::e|SRH SIDs=fcff:4::e,fcff:2::d46|IPv6|...| (i.a)
+#  hs-1->hs-2 |IPv6 DA=fcff:2::d46|IPv4|...|                              (ii.a)
+#
+#  hs-2->hs-1 |IPv6 DA=fcff:1::d46|IPv6|...|                              (i.b)
+#  hs-2->hs-1 |IPv6 DA=fcff:4::e|SRH SIDs=fcff:3::e,fcff:1::d46|IPv4|...| (ii.b)
+#
+#
+# IPv6 VPN between hs-3 and hs-4
+# ------------------------------
+#
+# Hosts hs-3 and hs-4 are connected using a dedicated IPv6 only VPN.
+# Specifically, packets generated from hs-3 and directed towards hs-4 are
+# handled by rt-3 which applies the following SRv6 Policy:
+#
+#  i.c) IPv6 traffic, SID List=fcff:2::e,fcff:4::d46
+#
+# Policy (i.c) steers tunneled IPv6 traffic through SRv6 routers rt-2,rt-4.
+# The H.Encaps.Red reduces the SID List (i.c) carried in SRH by pushing the
+# first SID (fcff:2::e) in the IPv6 DA.
+#
+# On the reverse path (i.e. from hs-4 to hs-3) the router rt-4 applies the
+# following SRv6 Policy:
+#
+#  i.d) IPv6 traffic, SID List=fcff:1::e,fcff:3::d46.
+#
+# Policy (i.d) steers tunneled IPv6 traffic through SRv6 routers rt-1,rt-3.
+# The H.Encaps.Red reduces the SID List (i.d) carried in SRH by pushing the
+# first SID (fcff:1::e) in the IPv6 DA.
+#
+# In summary:
+#  hs-3->hs-4 |IPv6 DA=fcff:2::e|SRH SIDs=fcff:4::d46|IPv6|...| (i.c)
+#  hs-4->hs-3 |IPv6 DA=fcff:1::e|SRH SIDs=fcff:3::d46|IPv6|...| (i.d)
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+readonly ksft_skip=4
+
+readonly RDMSUFF="$(mktemp -u XXXXXXXX)"
+readonly VRF_TID=100
+readonly VRF_DEVNAME="vrf-${VRF_TID}"
+readonly RT2HS_DEVNAME="veth-t${VRF_TID}"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fcff
+readonly END_FUNC=000e
+readonly DT46_FUNC=0d46
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_nodename()
+{
+	local name="$1"
+
+	echo "${name}-${RDMSUFF}"
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	get_nodename "rt-${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	get_nodename "hs-${hsid}"
+}
+
+__create_namespace()
+{
+	local name="$1"
+
+	ip netns add "${name}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+
+	__create_namespace "${nsname}"
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+
+	__create_namespace "${nsname}"
+}
+
+cleanup()
+{
+	local nsname
+	local i
+
+	# destroy routers
+	for i in ${ROUTERS}; do
+		nsname="$(get_rtname "${i}")"
+
+		ip netns del "${nsname}" &>/dev/null || true
+	done
+
+	# destroy hosts
+	for i in ${HOSTS}; do
+		nsname="$(get_hsname "${i}")"
+
+		ip netns del "${nsname}" &>/dev/null || true
+	done
+
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		neigh_nsname="$(get_rtname "${neigh}")"
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+	ip -netns "${nsname}" link set lo up
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.conf.all.rp_filter=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.conf.default.rp_filter=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.ip_forward=1
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			add "${VPN_LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+
+	# Local End behavior (note that "dev" is dummy and the VRF is chosen
+	# for the sake of simplicity).
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${END_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End dev "${VRF_DEVNAME}"
+
+	# Local End.DT46 behavior
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${DT46_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.DT46 vrftable "${VRF_TID}" \
+		dev "${VRF_DEVNAME}"
+
+	# all SIDs for VPNs start with a common locator. Routes and SRv6
+	# Endpoint behavior instaces are grouped together in the 'localsid'
+	# table.
+	ip -netns "${nsname}" -6 rule \
+		add to "${VPN_LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+
+	# set default routes to unreachable for both ipv4 and ipv6
+	ip -netns "${nsname}" -6 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+
+	ip -netns "${nsname}" -4 route \
+		add unreachable default metric 4278198272 \
+		vrf "${VRF_DEVNAME}"
+}
+
+# build and install the SRv6 policy into the ingress SRv6 router.
+# args:
+#  $1 - destination host (i.e. cafe::x host)
+#  $2 - SRv6 router configured for enforcing the SRv6 Policy
+#  $3 - SRv6 routers configured for steering traffic (End behaviors)
+#  $4 - SRv6 router configured for removing the SRv6 Policy (router connected
+#       to the destination host)
+#  $5 - encap mode (full or red)
+#  $6 - traffic type (IPv6 or IPv4)
+__setup_rt_policy()
+{
+	local dst="$1"
+	local encap_rt="$2"
+	local end_rts="$3"
+	local dec_rt="$4"
+	local mode="$5"
+	local traffic="$6"
+	local nsname
+	local policy=''
+	local n
+
+	nsname="$(get_rtname "${encap_rt}")"
+
+	for n in ${end_rts}; do
+		policy="${policy}${VPN_LOCATOR_SERVICE}:${n}::${END_FUNC},"
+	done
+
+	policy="${policy}${VPN_LOCATOR_SERVICE}:${dec_rt}::${DT46_FUNC}"
+
+	# add SRv6 policy to incoming traffic sent by connected hosts
+	if [ "${traffic}" -eq 6 ]; then
+		ip -netns "${nsname}" -6 route \
+			add "${IPv6_HS_NETWORK}::${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+
+		ip -netns "${nsname}" -6 neigh \
+			add proxy "${IPv6_HS_NETWORK}::${dst}" \
+			dev "${RT2HS_DEVNAME}"
+	else
+		# "dev" must be different from the one where the packet is
+		# received, otherwise the proxy arp does not work.
+		ip -netns "${nsname}" -4 route \
+			add "${IPv4_HS_NETWORK}.${dst}" vrf "${VRF_DEVNAME}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev "${VRF_DEVNAME}"
+	fi
+}
+
+# see __setup_rt_policy
+setup_rt_policy_ipv6()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 6
+}
+
+#see __setup_rt_policy
+setup_rt_policy_ipv4()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 4
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	hsname="$(get_hsname "${hs}")"
+	rtname="$(get_rtname "${rt}")"
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add veth0 type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr \
+		add "${IPv6_HS_NETWORK}::${hs}/64" dev veth0 nodad
+	ip -netns "${hsname}" addr add "${IPv4_HS_NETWORK}.${hs}/24" dev veth0
+
+	ip -netns "${hsname}" link set veth0 up
+	ip -netns "${hsname}" link set lo up
+
+	# configure the VRF on the router which is directly connected to the
+	# source host.
+	ip -netns "${rtname}" link \
+		add "${VRF_DEVNAME}" type vrf table "${VRF_TID}"
+	ip -netns "${rtname}" link set "${VRF_DEVNAME}" up
+
+	# enslave the veth interface connecting the router with the host to the
+	# VRF in the access router
+	ip -netns "${rtname}" link \
+		set "${RT2HS_DEVNAME}" master "${VRF_DEVNAME}"
+
+	ip -netns "${rtname}" addr \
+		add "${IPv6_HS_NETWORK}::254/64" dev "${RT2HS_DEVNAME}" nodad
+	ip -netns "${rtname}" addr \
+		add "${IPv4_HS_NETWORK}.254/24" dev "${RT2HS_DEVNAME}"
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv6.conf."${RT2HS_DEVNAME}".proxy_ndp=1
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv4.conf."${RT2HS_DEVNAME}".proxy_arp=1
+
+	# disable the rp_filter otherwise the kernel gets confused about how
+	# to route decap ipv4 packets.
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv4.conf."${RT2HS_DEVNAME}".rp_filter=0
+
+	ip netns exec "${rtname}" sh -c "echo 1 > /proc/sys/net/vrf/strict_mode"
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2 3 4"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+	setup_hs 3 3
+	setup_hs 4 4
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End and SRv6 End.DT46)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# set up SRv6 policies
+
+	# create an IPv6 VPN between hosts hs-1 and hs-2.
+	# the network path between hs-1 and hs-2 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-1 -> hs-2 (H.Encaps.Red)
+	#  - rt-3,rt-4 (SRv6 End behaviors)
+	#  - rt-2 (SRv6 End.DT46 behavior)
+	#
+	# Direction hs-2 -> hs-1 (H.Encaps.Red)
+	#  - rt-1 (SRv6 End.DT46 behavior)
+	setup_rt_policy_ipv6 2 1 "3 4" 2 encap.red
+	setup_rt_policy_ipv6 1 2 "" 1 encap.red
+
+	# create an IPv4 VPN between hosts hs-1 and hs-2
+	# the network path between hs-1 and hs-2 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-1 -> hs-2 (H.Encaps.Red)
+	# - rt-2 (SRv6 End.DT46 behavior)
+	#
+	# Direction hs-2 -> hs-1 (H.Encaps.Red)
+	#  - rt-4,rt-3 (SRv6 End behaviors)
+	#  - rt-1 (SRv6 End.DT46 behavior)
+	setup_rt_policy_ipv4 2 1 "" 2 encap.red
+	setup_rt_policy_ipv4 1 2 "4 3" 1 encap.red
+
+	# create an IPv6 VPN between hosts hs-3 and hs-4
+	# the network path between hs-3 and hs-4 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-3 -> hs-4 (H.Encaps.Red)
+	# - rt-2 (SRv6 End Behavior)
+	# - rt-4 (SRv6 End.DT46 behavior)
+	#
+	# Direction hs-4 -> hs-3 (H.Encaps.Red)
+	#  - rt-1 (SRv6 End behavior)
+	#  - rt-3 (SRv6 End.DT46 behavior)
+	setup_rt_policy_ipv6 4 3 "2" 4 encap.red
+	setup_rt_policy_ipv6 3 4 "1" 3 encap.red
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	rtsrc_nsname="$(get_rtname "${rtsrc}")"
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	hssrc_nsname="$(get_hsname "${hssrc}")"
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	hssrc_nsname="$(get_hsname "${hssrc}")"
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv4_HS_NETWORK}.${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+
+	check_hs_ipv4_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	check_and_log_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+}
+
+check_and_log_hs_ipv6_isolation()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	# in this case, the connectivity test must fail
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 1 "IPv6 Hosts isolation: hs-${hssrc} -X-> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_isolation()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	# in this case, the connectivity test must fail
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 1 "IPv4 Hosts isolation: hs-${hssrc} -X-> hs-${hsdst}"
+}
+
+check_and_log_hs_isolation()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv6_isolation "${hssrc}" "${hsdst}"
+	check_and_log_hs_ipv4_isolation "${hssrc}" "${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv4/IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 VPN connectivity test hosts (h1 <-> h2, IPv4/IPv6)"
+
+	check_and_log_hs_connectivity 1 2
+	check_and_log_hs_connectivity 2 1
+
+	log_section "SRv6 VPN connectivity test hosts (h3 <-> h4, IPv6 only)"
+
+	check_and_log_hs_ipv6_connectivity 3 4
+	check_and_log_hs_ipv6_connectivity 4 3
+}
+
+host_vpn_isolation_tests()
+{
+	local l1="1 2"
+	local l2="3 4"
+	local tmp
+	local i
+	local j
+	local k
+
+	log_section "SRv6 VPN isolation test among hosts"
+
+	for k in 0 1; do
+		for i in ${l1}; do
+			for j in ${l2}; do
+				check_and_log_hs_isolation "${i}" "${j}"
+			done
+		done
+
+		# let us test the reverse path
+		tmp="${l1}"; l1="${l2}"; l2="${tmp}"
+	done
+
+	log_section "SRv6 VPN isolation test among hosts (h2 <-> h4, IPv4 only)"
+
+	check_and_log_hs_ipv4_isolation 2 4
+	check_and_log_hs_ipv4_isolation 4 2
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	if ! ip route help 2>&1 | grep -qo "encap.red"; then
+		echo "SKIP: Missing SRv6 encap.red support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+test_vrf_or_ksft_skip()
+{
+	modprobe vrf &>/dev/null || true
+	if [ ! -e /proc/sys/net/vrf/strict_mode ]; then
+		echo "SKIP: vrf sysctl does not exist"
+		exit "${ksft_skip}"
+	fi
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+
+test_iproute2_supp_or_ksft_skip
+test_vrf_or_ksft_skip
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+host_vpn_isolation_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/srv6_hl2encap_red_l2vpn_test.sh b/tools/testing/selftests/net/srv6_hl2encap_red_l2vpn_test.sh
new file mode 100755
index 000000000000..cb4177d41b21
--- /dev/null
+++ b/tools/testing/selftests/net/srv6_hl2encap_red_l2vpn_test.sh
@@ -0,0 +1,821 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+#
+# author: Andrea Mayer <andrea.mayer@uniroma2.it>
+#
+# This script is designed for testing the SRv6 H.L2Encaps.Red behavior.
+#
+# Below is depicted the IPv6 network of an operator which offers L2 VPN
+# services to hosts, enabling them to communicate with each other.
+# In this example, hosts hs-1 and hs-2 are connected through an L2 VPN service.
+# Currently, the SRv6 subsystem in Linux allows hosts hs-1 and hs-2 to exchange
+# full L2 frames as long as they carry IPv4/IPv6.
+#
+# Routers rt-1,rt-2,rt-3 and rt-4 implement L2 VPN services
+# leveraging the SRv6 architecture. The key components for such VPNs are:
+#
+#   i) The SRv6 H.L2Encaps.Red behavior applies SRv6 Policies on traffic
+#      received by connected hosts, initiating the VPN tunnel. Such a behavior
+#      is an optimization of the SRv6 H.L2Encap aiming to reduce the
+#      length of the SID List carried in the pushed SRH. Specifically, the
+#      H.L2Encaps.Red removes the first SID contained in the SID List (i.e. SRv6
+#      Policy) by storing it into the IPv6 Destination Address. When a SRv6
+#      Policy is made of only one SID, the SRv6 H.L2Encaps.Red behavior omits
+#      the SRH at all and pushes that SID directly into the IPv6 DA;
+#
+#  ii) The SRv6 End behavior advances the active SID in the SID List
+#      carried by the SRH;
+#
+# iii) The SRv6 End.DX2 behavior is used for removing the SRv6 Policy
+#      and, thus, it terminates the VPN tunnel. The decapsulated L2 frame is
+#      sent over the interface connected with the destination host.
+#
+#               cafe::1                      cafe::2
+#              10.0.0.1                     10.0.0.2
+#             +--------+                   +--------+
+#             |        |                   |        |
+#             |  hs-1  |                   |  hs-2  |
+#             |        |                   |        |
+#             +---+----+                   +--- +---+
+#    cafe::/64    |                             |      cafe::/64
+#  10.0.0.0/24    |                             |    10.0.0.0/24
+#             +---+----+                   +----+---+
+#             |        |  fcf0:0:1:2::/64  |        |
+#             |  rt-1  +-------------------+  rt-2  |
+#             |        |                   |        |
+#             +---+----+                   +----+---+
+#                 |      .               .      |
+#                 |  fcf0:0:1:3::/64   .        |
+#                 |          .       .          |
+#                 |            .   .            |
+# fcf0:0:1:4::/64 |              .              | fcf0:0:2:3::/64
+#                 |            .   .            |
+#                 |          .       .          |
+#                 |  fcf0:0:2:4::/64   .        |
+#                 |      .               .      |
+#             +---+----+                   +----+---+
+#             |        |                   |        |
+#             |  rt-4  +-------------------+  rt-3  |
+#             |        |  fcf0:0:3:4::/64  |        |
+#             +---+----+                   +----+---+
+#
+#
+# Every fcf0:0:x:y::/64 network interconnects the SRv6 routers rt-x with rt-y
+# in the IPv6 operator network.
+#
+# Local SID table
+# ===============
+#
+# Each SRv6 router is configured with a Local SID table in which SIDs are
+# stored. Considering the given SRv6 router rt-x, at least two SIDs are
+# configured in the Local SID table:
+#
+#   Local SID table for SRv6 router rt-x
+#   +----------------------------------------------------------+
+#   |fcff:x::e is associated with the SRv6 End behavior        |
+#   |fcff:x::d2 is associated with the SRv6 End.DX2 behavior   |
+#   +----------------------------------------------------------+
+#
+# The fcff::/16 prefix is reserved by the operator for implementing SRv6 VPN
+# services. Reachability of SIDs is ensured by proper configuration of the IPv6
+# operator's network and SRv6 routers.
+#
+# SRv6 Policies
+# =============
+#
+# An SRv6 ingress router applies SRv6 policies to the traffic received from a
+# connected host. SRv6 policy enforcement consists of encapsulating the
+# received traffic into a new IPv6 packet with a given SID List contained in
+# the SRH.
+#
+# L2 VPN between hs-1 and hs-2
+# ----------------------------
+#
+# Hosts hs-1 and hs-2 are connected using a dedicated L2 VPN.
+# Specifically, packets generated from hs-1 and directed towards hs-2 are
+# handled by rt-1 which applies the following SRv6 Policies:
+#
+#   i.a) L2 traffic, SID List=fcff:2::d2
+#
+# Policy (i.a) steers tunneled L2 traffic through SRv6 router rt-2.
+# The H.L2Encaps.Red omits the presence of SRH at all, since the SID List
+# consists of only one SID (fcff:2::d2) that can be stored directly in the IPv6
+# DA.
+#
+# On the reverse path (i.e. from hs-2 to hs-1), rt-2 applies the following
+# policies:
+#
+#   i.b) L2 traffic, SID List=fcff:4::e,fcff:3::e,fcff:1::d2
+#
+# Policy (i.b) steers tunneled L2 traffic through the SRv6 routers
+# rt-4,rt-3,rt2. The H.L2Encaps.Red reduces the SID List in the SRH by removing
+# the first SID (fcff:4::e) and pushing it into the IPv6 DA.
+#
+# In summary:
+#  hs-1->hs-2 |IPv6 DA=fcff:2::d2|eth|...|                              (i.a)
+#  hs-2->hs-1 |IPv6 DA=fcff:4::e|SRH SIDs=fcff:3::e,fcff:1::d2|eth|...| (i.b)
+#
+
+# Kselftest framework requirement - SKIP code is 4.
+readonly ksft_skip=4
+
+readonly RDMSUFF="$(mktemp -u XXXXXXXX)"
+readonly DUMMY_DEVNAME="dum0"
+readonly RT2HS_DEVNAME="veth-hs"
+readonly HS_VETH_NAME="veth0"
+readonly LOCALSID_TABLE_ID=90
+readonly IPv6_RT_NETWORK=fcf0:0
+readonly IPv6_HS_NETWORK=cafe
+readonly IPv4_HS_NETWORK=10.0.0
+readonly VPN_LOCATOR_SERVICE=fcff
+readonly MAC_PREFIX=00:00:00:c0:01
+readonly END_FUNC=000e
+readonly DX2_FUNC=00d2
+
+PING_TIMEOUT_SEC=4
+PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}
+
+# IDs of routers and hosts are initialized during the setup of the testing
+# network
+ROUTERS=''
+HOSTS=''
+
+SETUP_ERR=1
+
+ret=${ksft_skip}
+nsuccess=0
+nfail=0
+
+log_test()
+{
+	local rc="$1"
+	local expected="$2"
+	local msg="$3"
+
+	if [ "${rc}" -eq "${expected}" ]; then
+		nsuccess=$((nsuccess+1))
+		printf "\n    TEST: %-60s  [ OK ]\n" "${msg}"
+	else
+		ret=1
+		nfail=$((nfail+1))
+		printf "\n    TEST: %-60s  [FAIL]\n" "${msg}"
+		if [ "${PAUSE_ON_FAIL}" = "yes" ]; then
+			echo
+			echo "hit enter to continue, 'q' to quit"
+			read a
+			[ "$a" = "q" ] && exit 1
+		fi
+	fi
+}
+
+print_log_test_results()
+{
+	printf "\nTests passed: %3d\n" "${nsuccess}"
+	printf "Tests failed: %3d\n"   "${nfail}"
+
+	# when a test fails, the value of 'ret' is set to 1 (error code).
+	# Conversely, when all tests are passed successfully, the 'ret' value
+	# is set to 0 (success code).
+	if [ "${ret}" -ne 1 ]; then
+		ret=0
+	fi
+}
+
+log_section()
+{
+	echo
+	echo "################################################################################"
+	echo "TEST SECTION: $*"
+	echo "################################################################################"
+}
+
+test_command_or_ksft_skip()
+{
+	local cmd="$1"
+
+	if [ ! -x "$(command -v "${cmd}")" ]; then
+		echo "SKIP: Could not run test without \"${cmd}\" tool";
+		exit "${ksft_skip}"
+	fi
+}
+
+get_nodename()
+{
+	local name="$1"
+
+	echo "${name}-${RDMSUFF}"
+}
+
+get_rtname()
+{
+	local rtid="$1"
+
+	get_nodename "rt-${rtid}"
+}
+
+get_hsname()
+{
+	local hsid="$1"
+
+	get_nodename "hs-${hsid}"
+}
+
+__create_namespace()
+{
+	local name="$1"
+
+	ip netns add "${name}"
+}
+
+create_router()
+{
+	local rtid="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rtid}")"
+
+	__create_namespace "${nsname}"
+}
+
+create_host()
+{
+	local hsid="$1"
+	local nsname
+
+	nsname="$(get_hsname "${hsid}")"
+
+	__create_namespace "${nsname}"
+}
+
+cleanup()
+{
+	local nsname
+	local i
+
+	# destroy routers
+	for i in ${ROUTERS}; do
+		nsname="$(get_rtname "${i}")"
+
+		ip netns del "${nsname}" &>/dev/null || true
+	done
+
+	# destroy hosts
+	for i in ${HOSTS}; do
+		nsname="$(get_hsname "${i}")"
+
+		ip netns del "${nsname}" &>/dev/null || true
+	done
+
+	# check whether the setup phase was completed successfully or not. In
+	# case of an error during the setup phase of the testing environment,
+	# the selftest is considered as "skipped".
+	if [ "${SETUP_ERR}" -ne 0 ]; then
+		echo "SKIP: Setting up the testing environment failed"
+		exit "${ksft_skip}"
+	fi
+
+	exit "${ret}"
+}
+
+add_link_rt_pairs()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local neigh
+	local nsname
+	local neigh_nsname
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		neigh_nsname="$(get_rtname "${neigh}")"
+
+		ip link add "veth-rt-${rt}-${neigh}" netns "${nsname}" \
+			type veth peer name "veth-rt-${neigh}-${rt}" \
+			netns "${neigh_nsname}"
+	done
+}
+
+get_network_prefix()
+{
+	local rt="$1"
+	local neigh="$2"
+	local p="${rt}"
+	local q="${neigh}"
+
+	if [ "${p}" -gt "${q}" ]; then
+		p="${q}"; q="${rt}"
+	fi
+
+	echo "${IPv6_RT_NETWORK}:${p}:${q}"
+}
+
+# Setup the basic networking for the routers
+setup_rt_networking()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local nsname
+	local net_prefix
+	local devname
+	local neigh
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		ip -netns "${nsname}" addr \
+			add "${net_prefix}::${rt}/64" dev "${devname}" nodad
+
+		ip -netns "${nsname}" link set "${devname}" up
+	done
+
+	ip -netns "${nsname}" link add "${DUMMY_DEVNAME}" type dummy
+
+	ip -netns "${nsname}" link set "${DUMMY_DEVNAME}" up
+	ip -netns "${nsname}" link set lo up
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv6.conf.all.forwarding=1
+
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.conf.all.rp_filter=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.conf.default.rp_filter=0
+	ip netns exec "${nsname}" sysctl -wq net.ipv4.ip_forward=1
+}
+
+# Setup local SIDs for an SRv6 router
+setup_rt_local_sids()
+{
+	local rt="$1"
+	local rt_neighs="$2"
+	local net_prefix
+	local devname
+	local nsname
+	local neigh
+
+	nsname="$(get_rtname "${rt}")"
+
+	for neigh in ${rt_neighs}; do
+		devname="veth-rt-${rt}-${neigh}"
+
+		net_prefix="$(get_network_prefix "${rt}" "${neigh}")"
+
+		# set underlay network routes for SIDs reachability
+		ip -netns "${nsname}" -6 route \
+			add "${VPN_LOCATOR_SERVICE}:${neigh}::/32" \
+			table "${LOCALSID_TABLE_ID}" \
+			via "${net_prefix}::${neigh}" dev "${devname}"
+	done
+
+	# Local End behavior (note that dev "${DUMMY_DEVNAME}" is a dummy
+	# interface)
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${END_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End dev "${DUMMY_DEVNAME}"
+
+	# all SIDs for VPNs start with a common locator. Routes and SRv6
+	# Endpoint behaviors instaces are grouped together in the 'localsid'
+	# table.
+	ip -netns "${nsname}" -6 rule add \
+		to "${VPN_LOCATOR_SERVICE}::/16" \
+		lookup "${LOCALSID_TABLE_ID}" prio 999
+}
+
+# build and install the SRv6 policy into the ingress SRv6 router.
+# args:
+#  $1 - destination host (i.e. cafe::x host)
+#  $2 - SRv6 router configured for enforcing the SRv6 Policy
+#  $3 - SRv6 routers configured for steering traffic (End behaviors)
+#  $4 - SRv6 router configured for removing the SRv6 Policy (router connected
+#       to the destination host)
+#  $5 - encap mode (full or red)
+#  $6 - traffic type (IPv6 or IPv4)
+__setup_rt_policy()
+{
+	local dst="$1"
+	local encap_rt="$2"
+	local end_rts="$3"
+	local dec_rt="$4"
+	local mode="$5"
+	local traffic="$6"
+	local nsname
+	local policy=''
+	local n
+
+	nsname="$(get_rtname "${encap_rt}")"
+
+	for n in ${end_rts}; do
+		policy="${policy}${VPN_LOCATOR_SERVICE}:${n}::${END_FUNC},"
+	done
+
+	policy="${policy}${VPN_LOCATOR_SERVICE}:${dec_rt}::${DX2_FUNC}"
+
+	# add SRv6 policy to incoming traffic sent by connected hosts
+	if [ "${traffic}" -eq 6 ]; then
+		ip -netns "${nsname}" -6 route \
+			add "${IPv6_HS_NETWORK}::${dst}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev dum0
+	else
+		ip -netns "${nsname}" -4 route \
+			add "${IPv4_HS_NETWORK}.${dst}" \
+			encap seg6 mode "${mode}" segs "${policy}" \
+			dev dum0
+	fi
+}
+
+# see __setup_rt_policy
+setup_rt_policy_ipv6()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 6
+}
+
+#see __setup_rt_policy
+setup_rt_policy_ipv4()
+{
+	__setup_rt_policy "$1" "$2" "$3" "$4" "$5" 4
+}
+
+setup_decap()
+{
+	local rt="$1"
+	local nsname
+
+	nsname="$(get_rtname "${rt}")"
+
+	# Local End.DX2 behavior
+	ip -netns "${nsname}" -6 route \
+		add "${VPN_LOCATOR_SERVICE}:${rt}::${DX2_FUNC}" \
+		table "${LOCALSID_TABLE_ID}" \
+		encap seg6local action End.DX2 oif "${RT2HS_DEVNAME}" \
+		dev "${RT2HS_DEVNAME}"
+}
+
+setup_hs()
+{
+	local hs="$1"
+	local rt="$2"
+	local hsname
+	local rtname
+
+	hsname="$(get_hsname "${hs}")"
+	rtname="$(get_rtname "${rt}")"
+
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.all.accept_dad=0
+	ip netns exec "${hsname}" sysctl -wq net.ipv6.conf.default.accept_dad=0
+
+	ip -netns "${hsname}" link add "${HS_VETH_NAME}" type veth \
+		peer name "${RT2HS_DEVNAME}" netns "${rtname}"
+
+	ip -netns "${hsname}" addr add "${IPv6_HS_NETWORK}::${hs}/64" \
+		dev "${HS_VETH_NAME}" nodad
+	ip -netns "${hsname}" addr add "${IPv4_HS_NETWORK}.${hs}/24" \
+		dev "${HS_VETH_NAME}"
+
+	ip -netns "${hsname}" link set "${HS_VETH_NAME}" up
+	ip -netns "${hsname}" link set lo up
+
+	ip -netns "${rtname}" addr add "${IPv6_HS_NETWORK}::254/64" \
+		dev "${RT2HS_DEVNAME}" nodad
+	ip -netns "${rtname}" addr \
+		add "${IPv4_HS_NETWORK}.254/24" dev "${RT2HS_DEVNAME}"
+
+	ip -netns "${rtname}" link set "${RT2HS_DEVNAME}" up
+
+	# disable the rp_filter otherwise the kernel gets confused about how
+	# to route decap ipv4 packets.
+	ip netns exec "${rtname}" \
+		sysctl -wq net.ipv4.conf."${RT2HS_DEVNAME}".rp_filter=0
+}
+
+# set an auto-generated mac address
+# args:
+#  $1 - name of the node (e.g.: hs-1, rt-3, etc)
+#  $2 - id of the node (e.g.: 1 for hs-1, 3 for rt-3, etc)
+#  $3 - host part of the IPv6 network address
+#  $4 - name of the network interface to which the generated mac address must
+#       be set.
+set_mac_address()
+{
+	local nodename="$1"
+	local nodeid="$2"
+	local host="$3"
+	local ifname="$4"
+	local nsname
+
+	nsname=$(get_nodename "${nodename}")
+
+	ip -netns "${nsname}" link set dev "${ifname}" down
+
+	ip -netns "${nsname}" link set address "${MAC_PREFIX}:${nodeid}" \
+		dev "${ifname}"
+
+	# the IPv6 address must be set once again after the MAC address has
+	# been changed.
+	ip -netns "${nsname}" addr add "${IPv6_HS_NETWORK}::${host}/64" \
+		dev "${ifname}" nodad
+
+	ip -netns "${nsname}" link set dev "${ifname}" up
+}
+
+set_host_l2peer()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local ipprefix="$3"
+	local proto="$4"
+	local hssrc_name
+	local ipaddr
+
+	hssrc_name="$(get_hsname "${hssrc}")"
+
+	if [ "${proto}" -eq 6 ]; then
+		ipaddr="${ipprefix}::${hsdst}"
+	else
+		ipaddr="${ipprefix}.${hsdst}"
+	fi
+
+	ip -netns "${hssrc_name}" route add "${ipaddr}" dev "${HS_VETH_NAME}"
+
+	ip -netns "${hssrc_name}" neigh \
+		add "${ipaddr}" lladdr "${MAC_PREFIX}:${hsdst}" \
+		dev "${HS_VETH_NAME}"
+}
+
+# setup an SRv6 L2 VPN between host hs-x and hs-y (currently, the SRv6
+# subsystem only supports L2 frames whose layer-3 is IPv4/IPv6).
+# args:
+#  $1 - source host
+#  $2 - SRv6 routers configured for steering tunneled traffic
+#  $3 - destination host
+setup_l2vpn()
+{
+	local hssrc="$1"
+	local end_rts="$2"
+	local hsdst="$3"
+	local rtsrc="${hssrc}"
+	local rtdst="${hsdst}"
+
+	# set fixed mac for source node and the neigh MAC address
+	set_mac_address "hs-${hssrc}" "${hssrc}" "${hssrc}" "${HS_VETH_NAME}"
+	set_host_l2peer "${hssrc}" "${hsdst}" "${IPv6_HS_NETWORK}" 6
+	set_host_l2peer "${hssrc}" "${hsdst}" "${IPv4_HS_NETWORK}" 4
+
+	# we have to set the mac address of the veth-host (on ingress router)
+	# to the mac address of the remote peer (L2 VPN destination host).
+	# Otherwise, traffic coming from the source host is dropped at the
+	# ingress router.
+	set_mac_address "rt-${rtsrc}" "${hsdst}" 254 "${RT2HS_DEVNAME}"
+
+	# set the SRv6 Policies at the ingress router
+	setup_rt_policy_ipv6 "${hsdst}" "${rtsrc}" "${end_rts}" "${rtdst}" \
+		l2encap.red 6
+	setup_rt_policy_ipv4 "${hsdst}" "${rtsrc}" "${end_rts}" "${rtdst}" \
+		l2encap.red 4
+
+	# set the decap behavior
+	setup_decap "${rtsrc}"
+}
+
+setup()
+{
+	local i
+
+	# create routers
+	ROUTERS="1 2 3 4"; readonly ROUTERS
+	for i in ${ROUTERS}; do
+		create_router "${i}"
+	done
+
+	# create hosts
+	HOSTS="1 2"; readonly HOSTS
+	for i in ${HOSTS}; do
+		create_host "${i}"
+	done
+
+	# set up the links for connecting routers
+	add_link_rt_pairs 1 "2 3 4"
+	add_link_rt_pairs 2 "3 4"
+	add_link_rt_pairs 3 "4"
+
+	# set up the basic connectivity of routers and routes required for
+	# reachability of SIDs.
+	setup_rt_networking 1 "2 3 4"
+	setup_rt_networking 2 "1 3 4"
+	setup_rt_networking 3 "1 2 4"
+	setup_rt_networking 4 "1 2 3"
+
+	# set up the hosts connected to routers
+	setup_hs 1 1
+	setup_hs 2 2
+
+	# set up default SRv6 Endpoints (i.e. SRv6 End and SRv6 End.DX2)
+	setup_rt_local_sids 1 "2 3 4"
+	setup_rt_local_sids 2 "1 3 4"
+	setup_rt_local_sids 3 "1 2 4"
+	setup_rt_local_sids 4 "1 2 3"
+
+	# create a L2 VPN between hs-1 and hs-2.
+	# NB: currently, H.L2Encap* enables tunneling of L2 frames whose
+	# layer-3 is IPv4/IPv6.
+	#
+	# the network path between hs-1 and hs-2 traverses several routers
+	# depending on the direction of traffic.
+	#
+	# Direction hs-1 -> hs-2 (H.L2Encaps.Red)
+	# - rt-2 (SRv6 End.DX2 behavior)
+	#
+	# Direction hs-2 -> hs-1 (H.L2Encaps.Red)
+	#  - rt-4,rt-3 (SRv6 End behaviors)
+	#  - rt-1 (SRv6 End.DX2 behavior)
+	setup_l2vpn 1 "" 2
+	setup_l2vpn 2 "4 3" 1
+
+	# testing environment was set up successfully
+	SETUP_ERR=0
+}
+
+check_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+	local prefix
+	local rtsrc_nsname
+
+	rtsrc_nsname="$(get_rtname "${rtsrc}")"
+
+	prefix="$(get_network_prefix "${rtsrc}" "${rtdst}")"
+
+	ip netns exec "${rtsrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${prefix}::${rtdst}" >/dev/null 2>&1
+}
+
+check_and_log_rt_connectivity()
+{
+	local rtsrc="$1"
+	local rtdst="$2"
+
+	check_rt_connectivity "${rtsrc}" "${rtdst}"
+	log_test $? 0 "Routers connectivity: rt-${rtsrc} -> rt-${rtdst}"
+}
+
+check_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	hssrc_nsname="$(get_hsname "${hssrc}")"
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv6_HS_NETWORK}::${hsdst}" >/dev/null 2>&1
+}
+
+check_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+	local hssrc_nsname
+
+	hssrc_nsname="$(get_hsname "${hssrc}")"
+
+	ip netns exec "${hssrc_nsname}" ping -c 1 -W "${PING_TIMEOUT_SEC}" \
+		"${IPv4_HS_NETWORK}.${hsdst}" >/dev/null 2>&1
+}
+
+check_and_log_hs2gw_connectivity()
+{
+	local hssrc="$1"
+
+	check_hs_ipv6_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> gw"
+
+	check_hs_ipv4_connectivity "${hssrc}" 254
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> gw"
+}
+
+check_and_log_hs_ipv6_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv6 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_ipv4_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	log_test $? 0 "IPv4 Hosts connectivity: hs-${hssrc} -> hs-${hsdst}"
+}
+
+check_and_log_hs_connectivity()
+{
+	local hssrc="$1"
+	local hsdst="$2"
+
+	check_and_log_hs_ipv4_connectivity "${hssrc}" "${hsdst}"
+	check_and_log_hs_ipv6_connectivity "${hssrc}" "${hsdst}"
+}
+
+router_tests()
+{
+	local i
+	local j
+
+	log_section "IPv6 routers connectivity test"
+
+	for i in ${ROUTERS}; do
+		for j in ${ROUTERS}; do
+			if [ "${i}" -eq "${j}" ]; then
+				continue
+			fi
+
+			check_and_log_rt_connectivity "${i}" "${j}"
+		done
+	done
+}
+
+host2gateway_tests()
+{
+	local hs
+
+	log_section "IPv4/IPv6 connectivity test among hosts and gateways"
+
+	for hs in ${HOSTS}; do
+		check_and_log_hs2gw_connectivity "${hs}"
+	done
+}
+
+host_vpn_tests()
+{
+	log_section "SRv6 L2 VPN connectivity test hosts (h1 <-> h2)"
+
+	check_and_log_hs_connectivity 1 2
+	check_and_log_hs_connectivity 2 1
+}
+
+test_dummy_dev_or_ksft_skip()
+{
+	local test_netns
+
+	test_netns="dummy-$(mktemp -u XXXXXXXX)"
+
+	if ! ip netns add "${test_netns}"; then
+		echo "SKIP: Cannot set up netns for testing dummy dev support"
+		exit "${ksft_skip}"
+	fi
+
+	modprobe dummy &>/dev/null || true
+	if ! ip -netns "${test_netns}" link \
+		add "${DUMMY_DEVNAME}" type dummy; then
+		echo "SKIP: dummy dev not supported"
+
+		ip netns del "${test_netns}"
+		exit "${ksft_skip}"
+	fi
+
+	ip netns del "${test_netns}"
+}
+
+test_iproute2_supp_or_ksft_skip()
+{
+	if ! ip route help 2>&1 | grep -qo "l2encap.red"; then
+		echo "SKIP: Missing SRv6 l2encap.red support in iproute2"
+		exit "${ksft_skip}"
+	fi
+}
+
+if [ "$(id -u)" -ne 0 ]; then
+	echo "SKIP: Need root privileges"
+	exit "${ksft_skip}"
+fi
+
+# required programs to carry out this selftest
+test_command_or_ksft_skip ip
+test_command_or_ksft_skip ping
+test_command_or_ksft_skip sysctl
+test_command_or_ksft_skip grep
+
+test_iproute2_supp_or_ksft_skip
+test_dummy_dev_or_ksft_skip
+
+set -e
+trap cleanup EXIT
+
+setup
+set +e
+
+router_tests
+host2gateway_tests
+host_vpn_tests
+
+print_log_test_results
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 5d70b04c482c..2cbb12736596 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -235,6 +235,7 @@ FIXTURE_VARIANT(tls)
 {
 	uint16_t tls_version;
 	uint16_t cipher_type;
+	bool nopad;
 };
 
 FIXTURE_VARIANT_ADD(tls, 12_aes_gcm)
@@ -297,9 +298,17 @@ FIXTURE_VARIANT_ADD(tls, 13_aes_gcm_256)
 	.cipher_type = TLS_CIPHER_AES_GCM_256,
 };
 
+FIXTURE_VARIANT_ADD(tls, 13_nopad)
+{
+	.tls_version = TLS_1_3_VERSION,
+	.cipher_type = TLS_CIPHER_AES_GCM_128,
+	.nopad = true,
+};
+
 FIXTURE_SETUP(tls)
 {
 	struct tls_crypto_info_keys tls12;
+	int one = 1;
 	int ret;
 
 	tls_crypto_info_init(variant->tls_version, variant->cipher_type,
@@ -315,6 +324,12 @@ FIXTURE_SETUP(tls)
 
 	ret = setsockopt(self->cfd, SOL_TLS, TLS_RX, &tls12, tls12.len);
 	ASSERT_EQ(ret, 0);
+
+	if (variant->nopad) {
+		ret = setsockopt(self->cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+				 (void *)&one, sizeof(one));
+		ASSERT_EQ(ret, 0);
+	}
 }
 
 FIXTURE_TEARDOWN(tls)
@@ -629,12 +644,14 @@ TEST_F(tls, splice_from_pipe2)
 	int p2[2];
 	int p[2];
 
+	memrnd(mem_send, sizeof(mem_send));
+
 	ASSERT_GE(pipe(p), 0);
 	ASSERT_GE(pipe(p2), 0);
-	EXPECT_GE(write(p[1], mem_send, 8000), 0);
-	EXPECT_GE(splice(p[0], NULL, self->fd, NULL, 8000, 0), 0);
-	EXPECT_GE(write(p2[1], mem_send + 8000, 8000), 0);
-	EXPECT_GE(splice(p2[0], NULL, self->fd, NULL, 8000, 0), 0);
+	EXPECT_EQ(write(p[1], mem_send, 8000), 8000);
+	EXPECT_EQ(splice(p[0], NULL, self->fd, NULL, 8000, 0), 8000);
+	EXPECT_EQ(write(p2[1], mem_send + 8000, 8000), 8000);
+	EXPECT_EQ(splice(p2[0], NULL, self->fd, NULL, 8000, 0), 8000);
 	EXPECT_EQ(recv(self->cfd, mem_recv, send_len, MSG_WAITALL), send_len);
 	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
 }
@@ -668,10 +685,12 @@ TEST_F(tls, splice_to_pipe)
 	char mem_recv[TLS_PAYLOAD_MAX_LEN];
 	int p[2];
 
+	memrnd(mem_send, sizeof(mem_send));
+
 	ASSERT_GE(pipe(p), 0);
-	EXPECT_GE(send(self->fd, mem_send, send_len, 0), 0);
-	EXPECT_GE(splice(self->cfd, NULL, p[1], NULL, send_len, 0), 0);
-	EXPECT_GE(read(p[0], mem_recv, send_len), 0);
+	EXPECT_EQ(send(self->fd, mem_send, send_len, 0), send_len);
+	EXPECT_EQ(splice(self->cfd, NULL, p[1], NULL, send_len, 0), send_len);
+	EXPECT_EQ(read(p[0], mem_recv, send_len), send_len);
 	EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
 }
 
@@ -860,6 +879,8 @@ TEST_F(tls, multiple_send_single_recv)
 	char recv_mem[2 * 10];
 	char send_mem[10];
 
+	memrnd(send_mem, sizeof(send_mem));
+
 	EXPECT_GE(send(self->fd, send_mem, send_len, 0), 0);
 	EXPECT_GE(send(self->fd, send_mem, send_len, 0), 0);
 	memset(recv_mem, 0, total_len);
@@ -876,6 +897,8 @@ TEST_F(tls, single_send_multiple_recv_non_align)
 	char recv_mem[recv_len * 2];
 	char send_mem[total_len];
 
+	memrnd(send_mem, sizeof(send_mem));
+
 	EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0);
 	memset(recv_mem, 0, total_len);
 
@@ -921,10 +944,10 @@ TEST_F(tls, recv_peek)
 	char buf[15];
 
 	EXPECT_EQ(send(self->fd, test_str, send_len, 0), send_len);
-	EXPECT_NE(recv(self->cfd, buf, send_len, MSG_PEEK), -1);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, MSG_PEEK), send_len);
 	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
 	memset(buf, 0, sizeof(buf));
-	EXPECT_NE(recv(self->cfd, buf, send_len, 0), -1);
+	EXPECT_EQ(recv(self->cfd, buf, send_len, 0), send_len);
 	EXPECT_EQ(memcmp(test_str, buf, send_len), 0);
 }
 
@@ -1582,6 +1605,38 @@ TEST_F(tls_err, bad_cmsg)
 	EXPECT_EQ(errno, EBADMSG);
 }
 
+TEST_F(tls_err, timeo)
+{
+	struct timeval tv = { .tv_usec = 10000, };
+	char buf[128];
+	int ret;
+
+	if (self->notls)
+		SKIP(return, "no TLS support");
+
+	ret = setsockopt(self->cfd2, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
+	ASSERT_EQ(ret, 0);
+
+	ret = fork();
+	ASSERT_GE(ret, 0);
+
+	if (ret) {
+		usleep(1000); /* Give child a head start */
+
+		EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+		EXPECT_EQ(errno, EAGAIN);
+
+		EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+		EXPECT_EQ(errno, EAGAIN);
+
+		wait(&ret);
+	} else {
+		EXPECT_EQ(recv(self->cfd2, buf, sizeof(buf), 0), -1);
+		EXPECT_EQ(errno, EAGAIN);
+		exit(0);
+	}
+}
+
 TEST(non_established) {
 	struct tls12_crypto_info_aes_gcm_256 tls12;
 	struct sockaddr_in addr;
@@ -1659,6 +1714,57 @@ TEST(keysizes) {
 	close(cfd);
 }
 
+TEST(no_pad) {
+	struct tls12_crypto_info_aes_gcm_256 tls12;
+	int ret, fd, cfd, val;
+	socklen_t len;
+	bool notls;
+
+	memset(&tls12, 0, sizeof(tls12));
+	tls12.info.version = TLS_1_3_VERSION;
+	tls12.info.cipher_type = TLS_CIPHER_AES_GCM_256;
+
+	ulp_sock_pair(_metadata, &fd, &cfd, &notls);
+
+	if (notls)
+		exit(KSFT_SKIP);
+
+	ret = setsockopt(fd, SOL_TLS, TLS_TX, &tls12, sizeof(tls12));
+	EXPECT_EQ(ret, 0);
+
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX, &tls12, sizeof(tls12));
+	EXPECT_EQ(ret, 0);
+
+	val = 1;
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, sizeof(val));
+	EXPECT_EQ(ret, 0);
+
+	len = sizeof(val);
+	val = 2;
+	ret = getsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, &len);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(val, 1);
+	EXPECT_EQ(len, 4);
+
+	val = 0;
+	ret = setsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, sizeof(val));
+	EXPECT_EQ(ret, 0);
+
+	len = sizeof(val);
+	val = 2;
+	ret = getsockopt(cfd, SOL_TLS, TLS_RX_EXPECT_NO_PAD,
+			 (void *)&val, &len);
+	EXPECT_EQ(ret, 0);
+	EXPECT_EQ(val, 0);
+	EXPECT_EQ(len, 4);
+
+	close(fd);
+	close(cfd);
+}
+
 TEST(tls_v6ops) {
 	struct tls_crypto_info_keys tls12;
 	struct sockaddr_in6 addr, addr2;
diff --git a/tools/testing/selftests/tc-testing/.gitignore b/tools/testing/selftests/tc-testing/.gitignore
index d52f65de23b4..9fe1cef72728 100644
--- a/tools/testing/selftests/tc-testing/.gitignore
+++ b/tools/testing/selftests/tc-testing/.gitignore
@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0-only
 __pycache__/
 *.pyc
-plugins/
 *.xml
 *.tap
 tdc_config_local.py
diff --git a/tools/testing/selftests/wireguard/qemu/Makefile b/tools/testing/selftests/wireguard/qemu/Makefile
index 9700358e4337..fda76282d34b 100644
--- a/tools/testing/selftests/wireguard/qemu/Makefile
+++ b/tools/testing/selftests/wireguard/qemu/Makefile
@@ -248,8 +248,13 @@ QEMU_MACHINE := -cpu host,accel=kvm -machine s390-ccw-virtio -append $(KERNEL_CM
 else
 QEMU_MACHINE := -cpu max -machine s390-ccw-virtio -append $(KERNEL_CMDLINE)
 endif
+else ifeq ($(ARCH),um)
+CHOST := $(HOST_ARCH)-linux-musl
+KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
+KERNEL_ARCH := um
+KERNEL_CMDLINE := $(shell sed -n 's/CONFIG_CMDLINE=\(.*\)/\1/p' arch/um.config)
 else
-$(error I only build: x86_64, i686, arm, armeb, aarch64, aarch64_be, mips, mipsel, mips64, mips64el, powerpc64, powerpc64le, powerpc, m68k, riscv64, riscv32, s390x)
+$(error I only build: x86_64, i686, arm, armeb, aarch64, aarch64_be, mips, mipsel, mips64, mips64el, powerpc64, powerpc64le, powerpc, m68k, riscv64, riscv32, s390x, um)
 endif
 
 TOOLCHAIN_FILENAME := $(CHOST)-cross.tgz
@@ -262,7 +267,9 @@ $(eval $(call file_download,$(TOOLCHAIN_FILENAME),$(TOOLCHAIN_DIR),,$(DISTFILES_
 STRIP := $(CHOST)-strip
 CROSS_COMPILE_FLAG := --build=$(CBUILD) --host=$(CHOST)
 $(info Building for $(CHOST) using $(CBUILD))
+ifneq ($(ARCH),um)
 export CROSS_COMPILE := $(CHOST)-
+endif
 export PATH := $(TOOLCHAIN_PATH)/bin:$(PATH)
 export CC := $(CHOST)-gcc
 CCACHE_PATH := $(shell which ccache 2>/dev/null)
@@ -279,6 +286,7 @@ comma := ,
 build: $(KERNEL_BZIMAGE)
 qemu: $(KERNEL_BZIMAGE)
 	rm -f $(BUILD_PATH)/result
+ifneq ($(ARCH),um)
 	timeout --foreground 20m qemu-system-$(QEMU_ARCH) \
 		-nodefaults \
 		-nographic \
@@ -291,6 +299,13 @@ qemu: $(KERNEL_BZIMAGE)
 		-no-reboot \
 		-monitor none \
 		-kernel $<
+else
+	timeout --foreground 20m $< \
+		$(KERNEL_CMDLINE) \
+		mem=$$(grep -q CONFIG_DEBUG_KMEMLEAK=y $(KERNEL_BUILD_PATH)/.config && echo 1G || echo 256M) \
+		noreboot \
+		con1=fd:51 51>$(BUILD_PATH)/result </dev/null 2>&1 | cat
+endif
 	grep -Fq success $(BUILD_PATH)/result
 
 $(BUILD_PATH)/init-cpio-spec.txt: $(TOOLCHAIN_PATH)/.installed $(BUILD_PATH)/init
diff --git a/tools/testing/selftests/wireguard/qemu/arch/um.config b/tools/testing/selftests/wireguard/qemu/arch/um.config
new file mode 100644
index 000000000000..c8b229e0810e
--- /dev/null
+++ b/tools/testing/selftests/wireguard/qemu/arch/um.config
@@ -0,0 +1,3 @@
+CONFIG_64BIT=y
+CONFIG_CMDLINE="wg.success=tty1 panic_on_warn=1"
+CONFIG_FRAME_WARN=1280
diff --git a/tools/testing/selftests/wireguard/qemu/debug.config b/tools/testing/selftests/wireguard/qemu/debug.config
index 2b321b8a96cf..9d172210e2c6 100644
--- a/tools/testing/selftests/wireguard/qemu/debug.config
+++ b/tools/testing/selftests/wireguard/qemu/debug.config
@@ -18,15 +18,12 @@ CONFIG_DEBUG_VM=y
 CONFIG_DEBUG_MEMORY_INIT=y
 CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
 CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_HAVE_ARCH_KMEMCHECK=y
 CONFIG_HAVE_ARCH_KASAN=y
 CONFIG_KASAN=y
 CONFIG_KASAN_INLINE=y
 CONFIG_UBSAN=y
 CONFIG_UBSAN_SANITIZE_ALL=y
-CONFIG_UBSAN_NULL=y
 CONFIG_DEBUG_KMEMLEAK=y
-CONFIG_DEBUG_KMEMLEAK_EARLY_LOG_SIZE=8192
 CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_DEBUG_SHIRQ=y
 CONFIG_WQ_WATCHDOG=y
@@ -35,7 +32,6 @@ CONFIG_SCHED_INFO=y
 CONFIG_SCHEDSTATS=y
 CONFIG_SCHED_STACK_END_CHECK=y
 CONFIG_DEBUG_TIMEKEEPING=y
-CONFIG_TIMER_STATS=y
 CONFIG_DEBUG_PREEMPT=y
 CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_DEBUG_SPINLOCK=y
@@ -49,7 +45,6 @@ CONFIG_DEBUG_BUGVERBOSE=y
 CONFIG_DEBUG_LIST=y
 CONFIG_DEBUG_PLIST=y
 CONFIG_PROVE_RCU=y
-CONFIG_SPARSE_RCU_POINTER=y
 CONFIG_RCU_CPU_STALL_TIMEOUT=21
 CONFIG_RCU_TRACE=y
 CONFIG_RCU_EQS_DEBUG=y
diff --git a/tools/testing/selftests/wireguard/qemu/kernel.config b/tools/testing/selftests/wireguard/qemu/kernel.config
index e1858ce7003f..ce2a04717300 100644
--- a/tools/testing/selftests/wireguard/qemu/kernel.config
+++ b/tools/testing/selftests/wireguard/qemu/kernel.config
@@ -19,7 +19,6 @@ CONFIG_NETFILTER_XTABLES=y
 CONFIG_NETFILTER_XT_NAT=y
 CONFIG_NETFILTER_XT_MATCH_LENGTH=y
 CONFIG_NETFILTER_XT_MARK=y
-CONFIG_NF_NAT_IPV4=y
 CONFIG_IP_NF_IPTABLES=y
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_MANGLE=y
author	Linus Torvalds <torvalds@linux-foundation.org>	2022-08-03 16:29:08 -0700
committer	Linus Torvalds <torvalds@linux-foundation.org>	2022-08-03 16:29:08 -0700
commit	f86d1fbbe7858884d6754534a0afbb74fc30bc26 (patch)
tree	f61796870edefbe77d495e9d719c68af1d14275b /tools/testing
parent	Merge tag 'ata-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata (diff)
parent	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff)
download	wireguard-linux-f86d1fbbe7858884d6754534a0afbb74fc30bc26.tar.xz wireguard-linux-f86d1fbbe7858884d6754534a0afbb74fc30bc26.zip