test_xsk.c isn't part of the test_progs framework.

Integrate the tests defined by test_xsk.c into the test_progs framework
through a new file : prog_tests/xsk.c. ZeroCopy mode isn't tested in it
as veth peers don't support it.
Move test_xsk{.c/.h} to prog_tests/.
Add the find_bit library to test_progs sources in the Makefile as it is
is used by test_xsk.c

Signed-off-by: Bastien Curutchet (eBPF Foundation) 
<bastien.curutc...@bootlin.com>
---
 tools/testing/selftests/bpf/Makefile               |  13 +-
 .../selftests/bpf/{ => prog_tests}/test_xsk.c      |   0
 .../selftests/bpf/{ => prog_tests}/test_xsk.h      |   0
 tools/testing/selftests/bpf/prog_tests/xsk.c       | 178 +++++++++++++++++++++
 tools/testing/selftests/bpf/xskxceiver.c           |   2 +-
 5 files changed, 190 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/bpf/Makefile 
b/tools/testing/selftests/bpf/Makefile
index 
3cde86a6e9b1ca467de162e0ba9670ad2085b6a6..6ba7bac51d75d6ee886fa928e72f1af98c11ede8
 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -536,6 +536,8 @@ TRUNNER_TEST_OBJS := $$(patsubst 
%.c,$$(TRUNNER_OUTPUT)/%.test.o,   \
                                 $$(notdir $$(wildcard 
$(TRUNNER_TESTS_DIR)/*.c)))
 TRUNNER_EXTRA_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,          \
                                 $$(filter %.c,$(TRUNNER_EXTRA_SOURCES)))
+TRUNNER_LIB_OBJS := $$(patsubst %.c,$$(TRUNNER_OUTPUT)/%.o,            \
+                                $$(filter %.c,$(TRUNNER_LIB_SOURCES)))
 TRUNNER_EXTRA_HDRS := $$(filter %.h,$(TRUNNER_EXTRA_SOURCES))
 TRUNNER_TESTS_HDR := $(TRUNNER_TESTS_DIR)/tests.h
 TRUNNER_BPF_SRCS := $$(notdir $$(wildcard $(TRUNNER_BPF_PROGS_DIR)/*.c))
@@ -667,6 +669,10 @@ $(TRUNNER_EXTRA_OBJS): $(TRUNNER_OUTPUT)/%.o:              
                \
        $$(call msg,EXT-OBJ,$(TRUNNER_BINARY),$$@)
        $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
 
+$(TRUNNER_LIB_OBJS): $(TRUNNER_OUTPUT)/%.o:$(TOOLSDIR)/lib/%.c
+       $$(call msg,LIB-OBJ,$(TRUNNER_BINARY),$$@)
+       $(Q)$$(CC) $$(CFLAGS) -c $$< $$(LDLIBS) -o $$@
+
 # non-flavored in-srctree builds receive special treatment, in particular, we
 # do not need to copy extra resources (see e.g. test_btf_dump_case())
 $(TRUNNER_BINARY)-extras: $(TRUNNER_EXTRA_FILES) | $(TRUNNER_OUTPUT)
@@ -683,6 +689,7 @@ $(OUTPUT)/$(TRUNNER_BINARY): | $(TRUNNER_BPF_OBJS)
 
 $(OUTPUT)/$(TRUNNER_BINARY): $(TRUNNER_TEST_OBJS)                      \
                             $(TRUNNER_EXTRA_OBJS) $$(BPFOBJ)           \
+                            $(TRUNNER_LIB_OBJS)                        \
                             $(RESOLVE_BTFIDS)                          \
                             $(TRUNNER_BPFTOOL)                         \
                             $(OUTPUT)/veristat                         \
@@ -716,6 +723,7 @@ TRUNNER_EXTRA_SOURCES := test_progs.c               \
                         json_writer.c          \
                         flow_dissector_load.h  \
                         ip_check_defrag_frags.h
+TRUNNER_LIB_SOURCES := find_bit.c
 TRUNNER_EXTRA_FILES := $(OUTPUT)/urandom_read                          \
                       $(OUTPUT)/liburandom_read.so                     \
                       $(OUTPUT)/xdp_synproxy                           \
@@ -753,6 +761,7 @@ endif
 TRUNNER_TESTS_DIR := map_tests
 TRUNNER_BPF_PROGS_DIR := progs
 TRUNNER_EXTRA_SOURCES := test_maps.c
+TRUNNER_LIB_SOURCES :=
 TRUNNER_EXTRA_FILES :=
 TRUNNER_BPF_BUILD_RULE := $$(error no BPF objects should be built)
 TRUNNER_BPF_CFLAGS :=
@@ -774,8 +783,8 @@ $(OUTPUT)/test_verifier: test_verifier.c verifier/tests.h 
$(BPFOBJ) | $(OUTPUT)
        $(Q)$(CC) $(CFLAGS) $(filter %.a %.o %.c,$^) $(LDLIBS) -o $@
 
 # Include find_bit.c to compile xskxceiver.
-EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c
-$(OUTPUT)/xskxceiver: $(EXTRA_SRC) test_xsk.c xskxceiver.c xskxceiver.h 
$(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h 
$(BPFOBJ) | $(OUTPUT)
+EXTRA_SRC := $(TOOLSDIR)/lib/find_bit.c prog_tests/test_xsk.c
+$(OUTPUT)/xskxceiver: $(EXTRA_SRC) xskxceiver.c xskxceiver.h 
$(OUTPUT)/network_helpers.o $(OUTPUT)/xsk.o $(OUTPUT)/xsk_xdp_progs.skel.h 
$(BPFOBJ) | $(OUTPUT)
        $(call msg,BINARY,,$@)
        $(Q)$(CC) $(CFLAGS) -D XSK_KSELFTEST $(filter %.a %.o %.c,$^) $(LDLIBS) 
-o $@
 
diff --git a/tools/testing/selftests/bpf/test_xsk.c 
b/tools/testing/selftests/bpf/prog_tests/test_xsk.c
similarity index 100%
rename from tools/testing/selftests/bpf/test_xsk.c
rename to tools/testing/selftests/bpf/prog_tests/test_xsk.c
diff --git a/tools/testing/selftests/bpf/test_xsk.h 
b/tools/testing/selftests/bpf/prog_tests/test_xsk.h
similarity index 100%
rename from tools/testing/selftests/bpf/test_xsk.h
rename to tools/testing/selftests/bpf/prog_tests/test_xsk.h
diff --git a/tools/testing/selftests/bpf/prog_tests/xsk.c 
b/tools/testing/selftests/bpf/prog_tests/xsk.c
new file mode 100644
index 
0000000000000000000000000000000000000000..efb87767ff4cdeb2bcd565f695df1f524fc4441e
--- /dev/null
+++ b/tools/testing/selftests/bpf/prog_tests/xsk.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <net/if.h>
+
+#include "network_helpers.h"
+#include "test_progs.h"
+#include "test_xsk.h"
+#include "xsk_xdp_progs.skel.h"
+
+#define VETH_RX "veth0"
+#define VETH_TX "veth1"
+#define MTU    1500
+
+void __printf(1, 2) xsk_log(const char *msg, ...)
+{
+       int saved_errno = errno;
+       va_list args;
+
+       if (env_verbosity > VERBOSE_NONE) {
+               va_start(args, msg);
+               printf("# ");
+               errno = saved_errno;
+               vprintf(msg, args);
+               va_end(args);
+       }
+}
+
+void __printf(1, 2) xsk_verbose(const char *msg, ...)
+{
+       int saved_errno = errno;
+       va_list args;
+
+       if (env_verbosity > VERBOSE_NORMAL) {
+               va_start(args, msg);
+               printf("# ");
+               errno = saved_errno;
+               vprintf(msg, args);
+               va_end(args);
+       }
+}
+
+void xsk_skip(const char *msg)
+{
+       fprintf(stderr, "TEST SKIPPED : %s", msg);
+}
+
+int setup_veth(bool busy_poll)
+{
+       SYS(fail,
+       "ip link add %s numtxqueues 4 numrxqueues 4 type veth peer name %s 
numtxqueues 4 numrxqueues 4",
+       VETH_RX, VETH_TX);
+       SYS(fail, "sysctl -wq net.ipv6.conf.%s.disable_ipv6=1", VETH_RX);
+       SYS(fail, "sysctl -wq net.ipv6.conf.%s.disable_ipv6=1", VETH_TX);
+
+       if (busy_poll) {
+               SYS(fail, "echo 2 > /sys/class/net/%s/napi_defer_hard_irqs", 
VETH_RX);
+               SYS(fail, "echo 200000 > /sys/class/net/%s/gro_flush_timeout", 
VETH_RX);
+               SYS(fail, "echo 2 > /sys/class/net/%s/napi_defer_hard_irqs", 
VETH_TX);
+               SYS(fail, "echo 200000 > /sys/class/net/%s/gro_flush_timeout", 
VETH_TX);
+       }
+
+       SYS(fail, "ip link set %s mtu %d", VETH_RX, MTU);
+       SYS(fail, "ip link set %s mtu %d", VETH_TX, MTU);
+       SYS(fail, "ip link set %s up", VETH_RX);
+       SYS(fail, "ip link set %s up", VETH_TX);
+
+       return 0;
+
+fail:
+       return -1;
+}
+
+void delete_veth(void)
+{
+       SYS_NOFAIL("ip link del %s", VETH_RX);
+       SYS_NOFAIL("ip link del %s", VETH_TX);
+}
+
+int configure_ifobj(struct ifobject *tx, struct ifobject *rx)
+{
+       rx->ifindex = if_nametoindex(VETH_RX);
+       if (!ASSERT_OK_FD(rx->ifindex, "get RX ifindex"))
+               return -1;
+
+       tx->ifindex = if_nametoindex(VETH_TX);
+       if (!ASSERT_OK_FD(tx->ifindex, "get TX ifindex"))
+               return -1;
+
+       tx->shared_umem = false;
+       rx->shared_umem = false;
+
+
+       return 0;
+}
+
+static void test_xsk(const struct test_spec *test_to_run, enum test_mode mode)
+{
+       struct ifobject *ifobj_tx, *ifobj_rx;
+       struct test_spec test;
+       int ret;
+
+       ifobj_tx = ifobject_create();
+       if (!ASSERT_OK_PTR(ifobj_tx, "create ifobj_tx"))
+               return;
+
+       ifobj_rx = ifobject_create();
+       if (!ASSERT_OK_PTR(ifobj_rx, "create ifobj_rx"))
+               goto delete_tx;
+
+       if (!ASSERT_OK(setup_veth(false), "setup veth"))
+               goto delete_rx;
+
+       if (!ASSERT_OK(configure_ifobj(ifobj_tx, ifobj_rx), "conigure ifobj"))
+               goto delete_veth;
+
+       ret = get_hw_ring_size(ifobj_tx->ifname, &ifobj_tx->ring);
+       if (!ret) {
+               ifobj_tx->hw_ring_size_supp = true;
+               ifobj_tx->set_ring.default_tx = ifobj_tx->ring.tx_pending;
+               ifobj_tx->set_ring.default_rx = ifobj_tx->ring.rx_pending;
+       }
+
+       if (!ASSERT_OK(init_iface(ifobj_rx, worker_testapp_validate_rx), "init 
RX"))
+               goto delete_veth;
+       if (!ASSERT_OK(init_iface(ifobj_tx, worker_testapp_validate_tx), "init 
TX"))
+               goto delete_veth;
+
+       test_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]);
+
+       test.tx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, 
MIN_PKT_SIZE);
+       if (!ASSERT_OK_PTR(test.tx_pkt_stream_default, "TX pkt generation"))
+               goto delete_veth;
+       test.rx_pkt_stream_default = pkt_stream_generate(DEFAULT_PKT_CNT, 
MIN_PKT_SIZE);
+       if (!ASSERT_OK_PTR(test.rx_pkt_stream_default, "RX pkt generation"))
+               goto delete_veth;
+
+
+       test_init(&test, ifobj_tx, ifobj_rx, mode, test_to_run);
+       ret = test.test_func(&test);
+       if (ret != TEST_SKIP)
+               ASSERT_OK(ret, "Run test");
+       pkt_stream_restore_default(&test);
+
+       if (ifobj_tx->hw_ring_size_supp)
+               hw_ring_size_reset(ifobj_tx);
+
+       pkt_stream_delete(test.tx_pkt_stream_default);
+       pkt_stream_delete(test.rx_pkt_stream_default);
+       xsk_xdp_progs__destroy(ifobj_tx->xdp_progs);
+       xsk_xdp_progs__destroy(ifobj_rx->xdp_progs);
+
+delete_veth:
+       delete_veth();
+delete_rx:
+       ifobject_delete(ifobj_rx);
+delete_tx:
+       ifobject_delete(ifobj_tx);
+}
+
+void test_ns_xsk_skb(void)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(tests); i++) {
+               if (test__start_subtest(tests[i].name))
+                       test_xsk(&tests[i], TEST_MODE_SKB);
+       }
+}
+
+void test_ns_xsk_drv(void)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(tests); i++) {
+               if (test__start_subtest(tests[i].name))
+                       test_xsk(&tests[i], TEST_MODE_DRV);
+       }
+}
+
diff --git a/tools/testing/selftests/bpf/xskxceiver.c 
b/tools/testing/selftests/bpf/xskxceiver.c
index 
e554b6bb1bd0d64ff16f2544072e98042c821990..7b311daf054b0a75bc1de773c2219a3a4c1705fd
 100644
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -90,7 +90,7 @@
 #include <sys/mman.h>
 #include <sys/types.h>
 
-#include "test_xsk.h"
+#include "prog_tests/test_xsk.h"
 #include "xsk_xdp_progs.skel.h"
 #include "xsk.h"
 #include "xskxceiver.h"

-- 
2.48.1


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