Subject: Re: [PATCH bpf-next 05/10] selftests/xsk: declare test names in struct

From: Maciej Fijalkowski <[email-masked]>
Date: Tue, 22 Aug 2023 14:28:34 +0200

On Wed, Aug 09, 2023 at 02:43:38PM +0200, Magnus Karlsson wrote:
> From: Magnus Karlsson <[email-masked]>
> 
> Declare the test names statically in a struct so that we can refer to
> them when adding the support to execute a single test in the next
> commit. Before this pathc, the names of them was not declared in a

s/was/were

pathc was caught by Przemek

> single place which made it not possible to refer to them.
> 
> Signed-off-by: Magnus Karlsson <[email-masked]>
> ---
>  tools/testing/selftests/bpf/xskxceiver.c | 191 +++++++----------------
>  tools/testing/selftests/bpf/xskxceiver.h |  37 +----
>  2 files changed, 57 insertions(+), 171 deletions(-)
> 
> diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
> index ee72bb0a8978..b1d0c69f21b8 100644
> --- a/tools/testing/selftests/bpf/xskxceiver.c
> +++ b/tools/testing/selftests/bpf/xskxceiver.c
> @@ -447,7 +447,8 @@ static void __test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
>  }
>  
>  static void test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
> -			   struct ifobject *ifobj_rx, enum test_mode mode)
> +			   struct ifobject *ifobj_rx, enum test_mode mode,
> +			   const struct test_spec *test_to_run)
>  {
>  	struct pkt_stream *tx_pkt_stream;
>  	struct pkt_stream *rx_pkt_stream;
> @@ -469,6 +470,8 @@ static void test_spec_init(struct test_spec *test, struct ifobject *ifobj_tx,
>  			ifobj->bind_flags |= XDP_COPY;
>  	}
>  
> +	strncpy(test->name, test_to_run->name, MAX_TEST_NAME_SIZE);
> +	test->test_func = test_to_run->test_func;
>  	test->mode = mode;
>  	__test_spec_init(test, ifobj_tx, ifobj_rx);
>  }
> @@ -478,11 +481,6 @@ static void test_spec_reset(struct test_spec *test)
>  	__test_spec_init(test, test->ifobj_tx, test->ifobj_rx);
>  }
>  
> -static void test_spec_set_name(struct test_spec *test, const char *name)
> -{
> -	strncpy(test->name, name, MAX_TEST_NAME_SIZE);
> -}
> -
>  static void test_spec_set_xdp_prog(struct test_spec *test, struct bpf_program *xdp_prog_rx,
>  				   struct bpf_program *xdp_prog_tx, struct bpf_map *xskmap_rx,
>  				   struct bpf_map *xskmap_tx)
> @@ -1727,7 +1725,6 @@ static int testapp_teardown(struct test_spec *test)
>  {
>  	int i;
>  
> -	test_spec_set_name(test, "TEARDOWN");
>  	for (i = 0; i < MAX_TEARDOWN_ITER; i++) {
>  		if (testapp_validate_traffic(test))
>  			return TEST_FAILURE;
> @@ -1749,11 +1746,10 @@ static void swap_directions(struct ifobject **ifobj1, struct ifobject **ifobj2)
>  	*ifobj2 = tmp_ifobj;
>  }
>  
> -static int testapp_bidi(struct test_spec *test)
> +static int testapp_bidirectional(struct test_spec *test)
>  {
>  	int res;
>  
> -	test_spec_set_name(test, "BIDIRECTIONAL");
>  	test->ifobj_tx->rx_on = true;
>  	test->ifobj_rx->tx_on = true;
>  	test->total_steps = 2;
> @@ -1782,9 +1778,8 @@ static void swap_xsk_resources(struct ifobject *ifobj_tx, struct ifobject *ifobj
>  		exit_with_error(errno);
>  }
>  
> -static int testapp_bpf_res(struct test_spec *test)
> +static int testapp_xdp_prog_cleanup(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "BPF_RES");
>  	test->total_steps = 2;
>  	test->nb_sockets = 2;
>  	if (testapp_validate_traffic(test))
> @@ -1796,14 +1791,12 @@ static int testapp_bpf_res(struct test_spec *test)
>  
>  static int testapp_headroom(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "UMEM_HEADROOM");
>  	test->ifobj_rx->umem->frame_headroom = UMEM_HEADROOM_TEST_SIZE;
>  	return testapp_validate_traffic(test);
>  }
>  
>  static int testapp_stats_rx_dropped(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "STAT_RX_DROPPED");
>  	if (test->mode == TEST_MODE_ZC) {
>  		ksft_test_result_skip("Can not run RX_DROPPED test for ZC mode\n");
>  		return TEST_SKIP;
> @@ -1819,7 +1812,6 @@ static int testapp_stats_rx_dropped(struct test_spec *test)
>  
>  static int testapp_stats_tx_invalid_descs(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "STAT_TX_INVALID");
>  	pkt_stream_replace_half(test, XSK_UMEM__INVALID_FRAME_SIZE, 0);
>  	test->ifobj_tx->validation_func = validate_tx_invalid_descs;
>  	return testapp_validate_traffic(test);
> @@ -1827,7 +1819,6 @@ static int testapp_stats_tx_invalid_descs(struct test_spec *test)
>  
>  static int testapp_stats_rx_full(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "STAT_RX_FULL");
>  	pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
>  	test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem,
>  							 DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
> @@ -1840,7 +1831,6 @@ static int testapp_stats_rx_full(struct test_spec *test)
>  
>  static int testapp_stats_fill_empty(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "STAT_RX_FILL_EMPTY");
>  	pkt_stream_replace(test, DEFAULT_UMEM_BUFFERS + DEFAULT_UMEM_BUFFERS / 2, MIN_PKT_SIZE);
>  	test->ifobj_rx->pkt_stream = pkt_stream_generate(test->ifobj_rx->umem,
>  							 DEFAULT_UMEM_BUFFERS, MIN_PKT_SIZE);
> @@ -1850,9 +1840,8 @@ static int testapp_stats_fill_empty(struct test_spec *test)
>  	return testapp_validate_traffic(test);
>  }
>  
> -static int testapp_unaligned(struct test_spec *test)
> +static int testapp_send_receive_unaligned(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "UNALIGNED_MODE");
>  	test->ifobj_tx->umem->unaligned_mode = true;
>  	test->ifobj_rx->umem->unaligned_mode = true;
>  	/* Let half of the packets straddle a 4K buffer boundary */
> @@ -1861,9 +1850,8 @@ static int testapp_unaligned(struct test_spec *test)
>  	return testapp_validate_traffic(test);
>  }
>  
> -static int testapp_unaligned_mb(struct test_spec *test)
> +static int testapp_send_receive_unaligned_mb(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "UNALIGNED_MODE_9K");
>  	test->mtu = MAX_ETH_JUMBO_SIZE;
>  	test->ifobj_tx->umem->unaligned_mode = true;
>  	test->ifobj_rx->umem->unaligned_mode = true;
> @@ -1875,14 +1863,12 @@ static int testapp_single_pkt(struct test_spec *test)
>  {
>  	struct pkt pkts[] = {{0, MIN_PKT_SIZE, 0, true}};
>  
> -	test_spec_set_name(test, "SEND_RECEIVE_SINGLE_PKT");
>  	pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts));
>  	return testapp_validate_traffic(test);
>  }
>  
> -static int testapp_multi_buffer(struct test_spec *test)
> +static int testapp_send_receive_mb(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "SEND_RECEIVE_9K_PACKETS");
>  	test->mtu = MAX_ETH_JUMBO_SIZE;
>  	pkt_stream_replace(test, DEFAULT_PKT_CNT, MAX_ETH_JUMBO_SIZE);
>  
> @@ -1979,7 +1965,6 @@ static int testapp_xdp_drop(struct test_spec *test)
>  	struct xsk_xdp_progs *skel_rx = test->ifobj_rx->xdp_progs;
>  	struct xsk_xdp_progs *skel_tx = test->ifobj_tx->xdp_progs;
>  
> -	test_spec_set_name(test, "XDP_DROP_HALF");
>  	test_spec_set_xdp_prog(test, skel_rx->progs.xsk_xdp_drop, skel_tx->progs.xsk_xdp_drop,
>  			       skel_rx->maps.xsk, skel_tx->maps.xsk);
>  
> @@ -2012,8 +1997,6 @@ static int testapp_xdp_metadata_copy(struct test_spec *test)
>  
>  static int testapp_poll_txq_tmout(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "POLL_TXQ_FULL");
> -
>  	test->ifobj_tx->use_poll = true;
>  	/* create invalid frame by set umem frame_size and pkt length equal to 2048 */
>  	test->ifobj_tx->umem->frame_size = 2048;
> @@ -2023,7 +2006,6 @@ static int testapp_poll_txq_tmout(struct test_spec *test)
>  
>  static int testapp_poll_rxq_tmout(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "POLL_RXQ_EMPTY");
>  	test->ifobj_rx->use_poll = true;
>  	return testapp_validate_traffic_single_thread(test, test->ifobj_rx);
>  }
> @@ -2033,7 +2015,6 @@ static int testapp_too_many_frags(struct test_spec *test)
>  	struct pkt pkts[2 * XSK_DESC__MAX_SKB_FRAGS + 2] = {};
>  	u32 max_frags, i;
>  
> -	test_spec_set_name(test, "TOO_MANY_FRAGS");
>  	if (test->mode == TEST_MODE_ZC)
>  		max_frags = test->ifobj_tx->xdp_zc_max_segs;
>  	else
> @@ -2139,13 +2120,11 @@ static void init_iface(struct ifobject *ifobj, const char *dst_mac, const char *
>  
>  static int testapp_send_receive(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "SEND_RECEIVE");
>  	return testapp_validate_traffic(test);
>  }
>  
>  static int testapp_send_receive_2k_frame(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "SEND_RECEIVE_2K_FRAME_SIZE");
>  	test->ifobj_tx->umem->frame_size = 2048;
>  	test->ifobj_rx->umem->frame_size = 2048;
>  	pkt_stream_replace(test, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
> @@ -2155,26 +2134,22 @@ static int testapp_send_receive_2k_frame(struct test_spec *test)
>  static int testapp_poll_rx(struct test_spec *test)
>  {
>  	test->ifobj_rx->use_poll = true;
> -	test_spec_set_name(test, "POLL_RX");
>  	return testapp_validate_traffic(test);
>  }
>  
>  static int testapp_poll_tx(struct test_spec *test)
>  {
>  	test->ifobj_tx->use_poll = true;
> -	test_spec_set_name(test, "POLL_TX");
>  	return testapp_validate_traffic(test);
>  }
>  
>  static int testapp_aligned_inv_desc(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "ALIGNED_INV_DESC");
>  	return testapp_invalid_desc(test);
>  }
>  
>  static int testapp_aligned_inv_desc_2k_frame(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "ALIGNED_INV_DESC_2K_FRAME_SIZE");
>  	test->ifobj_tx->umem->frame_size = 2048;
>  	test->ifobj_rx->umem->frame_size = 2048;
>  	return testapp_invalid_desc(test);
> @@ -2182,7 +2157,6 @@ static int testapp_aligned_inv_desc_2k_frame(struct test_spec *test)
>  
>  static int testapp_unaligned_inv_desc(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "UNALIGNED_INV_DESC");
>  	test->ifobj_tx->umem->unaligned_mode = true;
>  	test->ifobj_rx->umem->unaligned_mode = true;
>  	return testapp_invalid_desc(test);
> @@ -2192,7 +2166,6 @@ static int testapp_unaligned_inv_desc_4001_frame(struct test_spec *test)
>  {
>  	u64 page_size, umem_size;
>  
> -	test_spec_set_name(test, "UNALIGNED_INV_DESC_4K1_FRAME_SIZE");
>  	/* Odd frame size so the UMEM doesn't end near a page boundary. */
>  	test->ifobj_tx->umem->frame_size = 4001;
>  	test->ifobj_rx->umem->frame_size = 4001;
> @@ -2211,13 +2184,11 @@ static int testapp_unaligned_inv_desc_4001_frame(struct test_spec *test)
>  
>  static int testapp_aligned_inv_desc_mb(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "ALIGNED_INV_DESC_MULTI_BUFF");
>  	return testapp_invalid_desc_mb(test);
>  }
>  
>  static int testapp_unaligned_inv_desc_mb(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "UNALIGNED_INV_DESC_MULTI_BUFF");
>  	test->ifobj_tx->umem->unaligned_mode = true;
>  	test->ifobj_rx->umem->unaligned_mode = true;
>  	return testapp_invalid_desc_mb(test);
> @@ -2225,109 +2196,20 @@ static int testapp_unaligned_inv_desc_mb(struct test_spec *test)
>  
>  static int testapp_xdp_metadata(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "XDP_METADATA_COPY");
>  	return testapp_xdp_metadata_copy(test);
>  }
>  
>  static int testapp_xdp_metadata_mb(struct test_spec *test)
>  {
> -	test_spec_set_name(test, "XDP_METADATA_COPY_MULTI_BUFF");
>  	test->mtu = MAX_ETH_JUMBO_SIZE;
>  	return testapp_xdp_metadata_copy(test);
>  }
>  
> -static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_type type)
> -{
> -	int ret = TEST_SKIP;
> -
> -	switch (type) {
> -	case TEST_TYPE_STATS_RX_DROPPED:
> -		ret = testapp_stats_rx_dropped(test);
> -		break;
> -	case TEST_TYPE_STATS_TX_INVALID_DESCS:
> -		ret = testapp_stats_tx_invalid_descs(test);
> -		break;
> -	case TEST_TYPE_STATS_RX_FULL:
> -		ret = testapp_stats_rx_full(test);
> -		break;
> -	case TEST_TYPE_STATS_FILL_EMPTY:
> -		ret = testapp_stats_fill_empty(test);
> -		break;
> -	case TEST_TYPE_TEARDOWN:
> -		ret = testapp_teardown(test);
> -		break;
> -	case TEST_TYPE_BIDI:
> -		ret = testapp_bidi(test);
> -		break;
> -	case TEST_TYPE_BPF_RES:
> -		ret = testapp_bpf_res(test);
> -		break;
> -	case TEST_TYPE_RUN_TO_COMPLETION:
> -		ret = testapp_send_receive(test);
> -		break;
> -	case TEST_TYPE_RUN_TO_COMPLETION_MB:
> -		ret = testapp_multi_buffer(test);
> -		break;
> -	case TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT:
> -		ret = testapp_single_pkt(test);
> -		break;
> -	case TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME:
> -		ret = testapp_send_receive_2k_frame(test);
> -		break;
> -	case TEST_TYPE_RX_POLL:
> -		ret = testapp_poll_rx(test);
> -		break;
> -	case TEST_TYPE_TX_POLL:
> -		ret = testapp_poll_tx(test);
> -		break;
> -	case TEST_TYPE_POLL_TXQ_TMOUT:
> -		ret = testapp_poll_txq_tmout(test);
> -		break;
> -	case TEST_TYPE_POLL_RXQ_TMOUT:
> -		ret = testapp_poll_rxq_tmout(test);
> -		break;
> -	case TEST_TYPE_ALIGNED_INV_DESC:
> -		ret = testapp_aligned_inv_desc(test);
> -		break;
> -	case TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME:
> -		ret = testapp_aligned_inv_desc_2k_frame(test);
> -		break;
> -	case TEST_TYPE_UNALIGNED_INV_DESC:
> -		ret = testapp_unaligned_inv_desc(test);
> -		break;
> -	case TEST_TYPE_UNALIGNED_INV_DESC_4K1_FRAME:
> -		ret = testapp_unaligned_inv_desc_4001_frame(test);
> -		break;
> -	case TEST_TYPE_ALIGNED_INV_DESC_MB:
> -		ret = testapp_aligned_inv_desc_mb(test);
> -		break;
> -	case TEST_TYPE_UNALIGNED_INV_DESC_MB:
> -		ret = testapp_unaligned_inv_desc_mb(test);
> -		break;
> -	case TEST_TYPE_UNALIGNED:
> -		ret = testapp_unaligned(test);
> -		break;
> -	case TEST_TYPE_UNALIGNED_MB:
> -		ret = testapp_unaligned_mb(test);
> -		break;
> -	case TEST_TYPE_HEADROOM:
> -		ret = testapp_headroom(test);
> -		break;
> -	case TEST_TYPE_XDP_DROP_HALF:
> -		ret = testapp_xdp_drop(test);
> -		break;
> -	case TEST_TYPE_XDP_METADATA_COUNT:
> -		ret = testapp_xdp_metadata(test);
> -		break;
> -	case TEST_TYPE_XDP_METADATA_COUNT_MB:
> -		ret = testapp_xdp_metadata_mb(test);
> -		break;
> -	case TEST_TYPE_TOO_MANY_FRAGS:
> -		ret = testapp_too_many_frags(test);
> -		break;
> -	default:
> -		break;
> -	}
> +static void run_pkt_test(struct test_spec *test)
> +{
> +	int ret;
> +
> +	ret = test->test_func(test);
>  
>  	if (ret == TEST_PASS)
>  		ksft_test_result_pass("PASS: %s %s%s\n", mode_string(test), busy_poll_string(test),
> @@ -2395,6 +2277,39 @@ static bool is_xdp_supported(int ifindex)
>  	return true;
>  }
>  
> +static const struct test_spec tests[] = {
> +	{.name = "SEND_RECEIVE", .test_func = testapp_send_receive},
> +	{.name = "SEND_RECEIVE_2K_FRAME", .test_func = testapp_send_receive_2k_frame},
> +	{.name = "SEND_RECEIVE_SINGLE_PKT", .test_func = testapp_single_pkt},
> +	{.name = "POLL_RX", .test_func = testapp_poll_rx},
> +	{.name = "POLL_TX", .test_func = testapp_poll_tx},
> +	{.name = "POLL_RXQ_FULL", .test_func = testapp_poll_rxq_tmout},
> +	{.name = "POLL_TXQ_FULL", .test_func = testapp_poll_txq_tmout},
> +	{.name = "SEND_RECEIVE_UNALIGNED", .test_func = testapp_send_receive_unaligned},
> +	{.name = "ALIGNED_INV_DESC", .test_func = testapp_aligned_inv_desc},
> +	{.name = "ALIGNED_INV_DESC_2K_FRAME_SIZE", .test_func = testapp_aligned_inv_desc_2k_frame},
> +	{.name = "UNALIGNED_INV_DESC", .test_func = testapp_unaligned_inv_desc},
> +	{.name = "UNALIGNED_INV_DESC_4001_FRAME_SIZE",
> +	 .test_func = testapp_unaligned_inv_desc_4001_frame},
> +	{.name = "UMEM_HEADROOM", .test_func = testapp_headroom},
> +	{.name = "TEARDOWN", .test_func = testapp_teardown},
> +	{.name = "BIDIRECTIONAL", .test_func = testapp_bidirectional},
> +	{.name = "STAT_RX_DROPPED", .test_func = testapp_stats_rx_dropped},
> +	{.name = "STAT_TX_INVALID", .test_func = testapp_stats_tx_invalid_descs},
> +	{.name = "STAT_RX_FULL", .test_func = testapp_stats_rx_full},
> +	{.name = "STAT_FILL_EMPTY", .test_func = testapp_stats_fill_empty},
> +	{.name = "XDP_PROG_CLEANUP", .test_func = testapp_xdp_prog_cleanup},
> +	{.name = "XDP_DROP_HALF", .test_func = testapp_xdp_drop},
> +	{.name = "XDP_METADATA_COPY", .test_func = testapp_xdp_metadata},
> +	{.name = "XDP_METADATA_COPY_MULTI_BUFF", .test_func = testapp_xdp_metadata_mb},
> +	{.name = "SEND_RECEIVE_9K_PACKETS", .test_func = testapp_send_receive_mb},
> +	{.name = "SEND_RECEIVE_UNALIGNED_9K_PACKETS",
> +	 .test_func = testapp_send_receive_unaligned_mb},
> +	{.name = "ALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_aligned_inv_desc_mb},
> +	{.name = "UNALIGNED_INV_DESC_MULTI_BUFF", .test_func = testapp_unaligned_inv_desc_mb},
> +	{.name = "TOO_MANY_FRAGS", .test_func = testapp_too_many_frags},
> +};

can you move this to a header file? looks weird to have these declarations
in the middle of the file.

> +
>  int main(int argc, char **argv)
>  {
>  	struct pkt_stream *rx_pkt_stream_default;
> @@ -2437,7 +2352,7 @@ int main(int argc, char **argv)
>  	init_iface(ifobj_rx, MAC1, MAC2, worker_testapp_validate_rx);
>  	init_iface(ifobj_tx, MAC2, MAC1, worker_testapp_validate_tx);
>  
> -	test_spec_init(&test, ifobj_tx, ifobj_rx, 0);
> +	test_spec_init(&test, ifobj_tx, ifobj_rx, 0, &tests[0]);
>  	tx_pkt_stream_default = pkt_stream_generate(ifobj_tx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
>  	rx_pkt_stream_default = pkt_stream_generate(ifobj_rx->umem, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
>  	if (!tx_pkt_stream_default || !rx_pkt_stream_default)
> @@ -2446,17 +2361,17 @@ int main(int argc, char **argv)
>  	test.rx_pkt_stream_default = rx_pkt_stream_default;
>  
>  	if (opt_mode == TEST_MODE_ALL)
> -		ksft_set_plan(modes * TEST_TYPE_MAX);
> +		ksft_set_plan(modes * ARRAY_SIZE(tests));
>  	else
> -		ksft_set_plan(TEST_TYPE_MAX);
> +		ksft_set_plan(ARRAY_SIZE(tests));
>  
>  	for (i = 0; i < modes; i++) {
>  		if (opt_mode != TEST_MODE_ALL && i != opt_mode)
>  			continue;
>  
> -		for (j = 0; j < TEST_TYPE_MAX; j++) {
> -			test_spec_init(&test, ifobj_tx, ifobj_rx, i);
> -			run_pkt_test(&test, i, j);
> +		for (j = 0; j < ARRAY_SIZE(tests); j++) {
> +			test_spec_init(&test, ifobj_tx, ifobj_rx, i, &tests[j]);
> +			run_pkt_test(&test);
>  			usleep(USLEEP_MAX);
>  
>  			if (test.fail)
> diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h
> index 1412492e9618..3a71d490db3e 100644
> --- a/tools/testing/selftests/bpf/xskxceiver.h
> +++ b/tools/testing/selftests/bpf/xskxceiver.h
> @@ -34,7 +34,7 @@
>  #define MAX_INTERFACES 2
>  #define MAX_INTERFACE_NAME_CHARS 16
>  #define MAX_SOCKETS 2
> -#define MAX_TEST_NAME_SIZE 32
> +#define MAX_TEST_NAME_SIZE 48
>  #define MAX_TEARDOWN_ITER 10
>  #define PKT_HDR_SIZE (sizeof(struct ethhdr) + 2) /* Just to align the data in the packet */
>  #define MIN_PKT_SIZE 64
> @@ -66,38 +66,6 @@ enum test_mode {
>  	TEST_MODE_ALL
>  };
>  
> -enum test_type {
> -	TEST_TYPE_RUN_TO_COMPLETION,
> -	TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME,
> -	TEST_TYPE_RUN_TO_COMPLETION_SINGLE_PKT,
> -	TEST_TYPE_RX_POLL,
> -	TEST_TYPE_TX_POLL,
> -	TEST_TYPE_POLL_RXQ_TMOUT,
> -	TEST_TYPE_POLL_TXQ_TMOUT,
> -	TEST_TYPE_UNALIGNED,
> -	TEST_TYPE_ALIGNED_INV_DESC,
> -	TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME,
> -	TEST_TYPE_UNALIGNED_INV_DESC,
> -	TEST_TYPE_UNALIGNED_INV_DESC_4K1_FRAME,
> -	TEST_TYPE_HEADROOM,
> -	TEST_TYPE_TEARDOWN,
> -	TEST_TYPE_BIDI,
> -	TEST_TYPE_STATS_RX_DROPPED,
> -	TEST_TYPE_STATS_TX_INVALID_DESCS,
> -	TEST_TYPE_STATS_RX_FULL,
> -	TEST_TYPE_STATS_FILL_EMPTY,
> -	TEST_TYPE_BPF_RES,
> -	TEST_TYPE_XDP_DROP_HALF,
> -	TEST_TYPE_XDP_METADATA_COUNT,
> -	TEST_TYPE_XDP_METADATA_COUNT_MB,
> -	TEST_TYPE_RUN_TO_COMPLETION_MB,
> -	TEST_TYPE_UNALIGNED_MB,
> -	TEST_TYPE_ALIGNED_INV_DESC_MB,
> -	TEST_TYPE_UNALIGNED_INV_DESC_MB,
> -	TEST_TYPE_TOO_MANY_FRAGS,
> -	TEST_TYPE_MAX
> -};
> -
>  struct xsk_umem_info {
>  	struct xsk_ring_prod fq;
>  	struct xsk_ring_cons cq;
> @@ -137,8 +105,10 @@ struct pkt_stream {
>  };
>  
>  struct ifobject;
> +struct test_spec;
>  typedef int (*validation_func_t)(struct ifobject *ifobj);
>  typedef void *(*thread_func_t)(void *arg);
> +typedef int (*test_func_t)(struct test_spec *test);
>  
>  struct ifobject {
>  	char ifname[MAX_INTERFACE_NAME_CHARS];
> @@ -180,6 +150,7 @@ struct test_spec {
>  	struct bpf_program *xdp_prog_tx;
>  	struct bpf_map *xskmap_rx;
>  	struct bpf_map *xskmap_tx;
> +	test_func_t test_func;
>  	int mtu;
>  	u16 total_steps;
>  	u16 current_step;
> -- 
> 2.34.1
>