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Message-ID: <20230914084900.492-8-magnus.karlsson@gmail.com>
Date: Thu, 14 Sep 2023 10:48:54 +0200
From: Magnus Karlsson <magnus.karlsson@...il.com>
To: magnus.karlsson@...el.com,
bjorn@...nel.org,
ast@...nel.org,
daniel@...earbox.net,
netdev@...r.kernel.org,
maciej.fijalkowski@...el.com,
bpf@...r.kernel.org,
yhs@...com,
andrii@...nel.org,
martin.lau@...ux.dev,
song@...nel.org,
john.fastabend@...il.com,
kpsingh@...nel.org,
sdf@...gle.com,
haoluo@...gle.com,
jolsa@...nel.org,
przemyslaw.kitszel@...el.com
Subject: [PATCH bpf-next v4 07/10] selftests/xsk: add option to run single test
From: Magnus Karlsson <magnus.karlsson@...el.com>
Add a command line option to be able to run a single test. This option
(-t) takes a number from the list of tests available with the "-l"
option. Here are two examples:
Run test number 2, the "receive single packet" test in all available modes:
./test_xsk.sh -t 2
Run test number 21, the metadata copy test in skb mode only
./test_xsh.sh -t 21 -m skb
Signed-off-by: Magnus Karlsson <magnus.karlsson@...el.com>
---
tools/testing/selftests/bpf/test_xsk.sh | 10 ++++-
tools/testing/selftests/bpf/xskxceiver.c | 56 +++++++++++++++---------
tools/testing/selftests/bpf/xskxceiver.h | 3 ++
3 files changed, 48 insertions(+), 21 deletions(-)
diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh
index cb215a83b622..296006ea6e9c 100755
--- a/tools/testing/selftests/bpf/test_xsk.sh
+++ b/tools/testing/selftests/bpf/test_xsk.sh
@@ -79,12 +79,15 @@
#
# List available tests
# ./test_xsk.sh -l
+#
+# Run a specific test from the test suite
+# sudo ./test_xsk.sh -t TEST_NAME
. xsk_prereqs.sh
ETH=""
-while getopts "vi:dm:l" flag
+while getopts "vi:dm:lt:" flag
do
case "${flag}" in
v) verbose=1;;
@@ -92,6 +95,7 @@ do
i) ETH=${OPTARG};;
m) MODE=${OPTARG};;
l) list=1;;
+ t) TEST=${OPTARG};;
esac
done
@@ -170,6 +174,10 @@ if [ -n "$MODE" ]; then
ARGS+="-m ${MODE} "
fi
+if [ -n "$TEST" ]; then
+ ARGS+="-t ${TEST} "
+fi
+
retval=$?
test_status $retval "${TEST_NAME}"
diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index 289fae654bab..fba42edc3961 100644
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -110,6 +110,7 @@ static const char *MAC2 = "\x00\x0A\x56\x9E\xEE\x61";
static bool opt_verbose;
static bool opt_print_tests;
static enum test_mode opt_mode = TEST_MODE_ALL;
+static u32 opt_run_test = RUN_ALL_TESTS;
static void __exit_with_error(int error, const char *file, const char *func, int line)
{
@@ -316,10 +317,11 @@ static struct option long_options[] = {
{"verbose", no_argument, 0, 'v'},
{"mode", required_argument, 0, 'm'},
{"list", no_argument, 0, 'l'},
+ {"test", required_argument, 0, 't'},
{0, 0, 0, 0}
};
-static void usage(const char *prog)
+static void print_usage(char **argv)
{
const char *str =
" Usage: xskxceiver [OPTIONS]\n"
@@ -328,9 +330,11 @@ static void usage(const char *prog)
" -v, --verbose Verbose output\n"
" -b, --busy-poll Enable busy poll\n"
" -m, --mode Run only mode skb, drv, or zc\n"
- " -l, --list List all available tests\n";
+ " -l, --list List all available tests\n"
+ " -t, --test Run a specific test. Enter number from -l option.\n";
- ksft_print_msg(str, prog);
+ ksft_print_msg(str, basename(argv[0]));
+ ksft_exit_xfail();
}
static bool validate_interface(struct ifobject *ifobj)
@@ -350,7 +354,7 @@ static void parse_command_line(struct ifobject *ifobj_tx, struct ifobject *ifobj
opterr = 0;
for (;;) {
- c = getopt_long(argc, argv, "i:vbm:l", long_options, &option_index);
+ c = getopt_long(argc, argv, "i:vbm:lt:", long_options, &option_index);
if (c == -1)
break;
@@ -380,23 +384,26 @@ static void parse_command_line(struct ifobject *ifobj_tx, struct ifobject *ifobj
ifobj_rx->busy_poll = true;
break;
case 'm':
- if (!strncmp("skb", optarg, strlen(optarg))) {
+ if (!strncmp("skb", optarg, strlen(optarg)))
opt_mode = TEST_MODE_SKB;
- } else if (!strncmp("drv", optarg, strlen(optarg))) {
+ else if (!strncmp("drv", optarg, strlen(optarg)))
opt_mode = TEST_MODE_DRV;
- } else if (!strncmp("zc", optarg, strlen(optarg))) {
+ else if (!strncmp("zc", optarg, strlen(optarg)))
opt_mode = TEST_MODE_ZC;
- } else {
- usage(basename(argv[0]));
- ksft_exit_xfail();
- }
+ else
+ print_usage(argv);
break;
case 'l':
opt_print_tests = true;
break;
+ case 't':
+ errno = 0;
+ opt_run_test = strtol(optarg, NULL, 0);
+ if (errno)
+ print_usage(argv);
+ break;
default:
- usage(basename(argv[0]));
- ksft_exit_xfail();
+ print_usage(argv);
}
}
}
@@ -2327,8 +2334,8 @@ int main(int argc, char **argv)
struct pkt_stream *rx_pkt_stream_default;
struct pkt_stream *tx_pkt_stream_default;
struct ifobject *ifobj_tx, *ifobj_rx;
+ u32 i, j, failed_tests = 0, nb_tests;
int modes = TEST_MODE_SKB + 1;
- u32 i, j, failed_tests = 0;
struct test_spec test;
bool shared_netdev;
@@ -2350,15 +2357,17 @@ int main(int argc, char **argv)
print_tests();
ksft_exit_xpass();
}
+ if (opt_run_test != RUN_ALL_TESTS && opt_run_test >= ARRAY_SIZE(tests)) {
+ ksft_print_msg("Error: test %u does not exist.\n", opt_run_test);
+ ksft_exit_xfail();
+ }
shared_netdev = (ifobj_tx->ifindex == ifobj_rx->ifindex);
ifobj_tx->shared_umem = shared_netdev;
ifobj_rx->shared_umem = shared_netdev;
- if (!validate_interface(ifobj_tx) || !validate_interface(ifobj_rx)) {
- usage(basename(argv[0]));
- ksft_exit_xfail();
- }
+ if (!validate_interface(ifobj_tx) || !validate_interface(ifobj_rx))
+ print_usage(argv);
if (is_xdp_supported(ifobj_tx->ifindex)) {
modes++;
@@ -2377,8 +2386,12 @@ int main(int argc, char **argv)
test.tx_pkt_stream_default = tx_pkt_stream_default;
test.rx_pkt_stream_default = rx_pkt_stream_default;
+ if (opt_run_test == RUN_ALL_TESTS)
+ nb_tests = ARRAY_SIZE(tests);
+ else
+ nb_tests = 1;
if (opt_mode == TEST_MODE_ALL) {
- ksft_set_plan(modes * ARRAY_SIZE(tests));
+ ksft_set_plan(modes * nb_tests);
} else {
if (opt_mode == TEST_MODE_DRV && modes <= TEST_MODE_DRV) {
ksft_print_msg("Error: XDP_DRV mode not supported.\n");
@@ -2389,7 +2402,7 @@ int main(int argc, char **argv)
ksft_exit_xfail();
}
- ksft_set_plan(ARRAY_SIZE(tests));
+ ksft_set_plan(nb_tests);
}
for (i = 0; i < modes; i++) {
@@ -2397,6 +2410,9 @@ int main(int argc, char **argv)
continue;
for (j = 0; j < ARRAY_SIZE(tests); j++) {
+ if (opt_run_test != RUN_ALL_TESTS && j != opt_run_test)
+ continue;
+
test_spec_init(&test, ifobj_tx, ifobj_rx, i, &tests[j]);
run_pkt_test(&test);
usleep(USLEEP_MAX);
diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h
index 3a71d490db3e..8015aeea839d 100644
--- a/tools/testing/selftests/bpf/xskxceiver.h
+++ b/tools/testing/selftests/bpf/xskxceiver.h
@@ -5,6 +5,8 @@
#ifndef XSKXCEIVER_H_
#define XSKXCEIVER_H_
+#include <limits.h>
+
#include "xsk_xdp_progs.skel.h"
#ifndef SOL_XDP
@@ -56,6 +58,7 @@
#define XSK_DESC__MAX_SKB_FRAGS 18
#define HUGEPAGE_SIZE (2 * 1024 * 1024)
#define PKT_DUMP_NB_TO_PRINT 16
+#define RUN_ALL_TESTS UINT_MAX
#define print_verbose(x...) do { if (opt_verbose) ksft_print_msg(x); } while (0)
--
2.42.0
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