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selftests: xsk: Add tests for 2K frame size
Add tests for 2K frame size. Both a standard send and receive test and one testing for invalid descriptors when the frame size is 2K. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Link: https://lore.kernel.org/bpf/20210907071928.9750-21-magnus.karlsson@gmail.com
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2 changed files with 25 additions and 0 deletions
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@ -48,6 +48,7 @@
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* g. unaligned mode
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* h. tests for invalid and corner case Tx descriptors so that the correct ones
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* are discarded and let through, respectively.
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* i. 2K frame size tests
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*
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* Total tests: 12
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*
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@ -1205,6 +1206,8 @@ static void testapp_invalid_desc(struct test_spec *test)
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{UMEM_SIZE - PKT_SIZE / 2, PKT_SIZE, 0, false},
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/* Straddle a page boundrary */
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{0x3000 - PKT_SIZE / 2, PKT_SIZE, 0, false},
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/* Straddle a 2K boundrary */
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{0x3800 - PKT_SIZE / 2, PKT_SIZE, 0, true},
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/* Valid packet for synch so that something is received */
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{0x4000, PKT_SIZE, 0, true}};
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@ -1212,6 +1215,11 @@ static void testapp_invalid_desc(struct test_spec *test)
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/* Crossing a page boundrary allowed */
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pkts[6].valid = true;
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}
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if (test->ifobj_tx->umem->frame_size == XSK_UMEM__DEFAULT_FRAME_SIZE / 2) {
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/* Crossing a 2K frame size boundrary not allowed */
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pkts[7].valid = false;
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}
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pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts));
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testapp_validate_traffic(test);
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pkt_stream_restore_default(test);
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@ -1262,6 +1270,15 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_
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test_spec_set_name(test, "RUN_TO_COMPLETION");
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testapp_validate_traffic(test);
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break;
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case TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME:
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test_spec_set_name(test, "RUN_TO_COMPLETION_2K_FRAME_SIZE");
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test->ifobj_tx->umem->frame_size = 2048;
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test->ifobj_rx->umem->frame_size = 2048;
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pkt_stream_replace(test, DEFAULT_PKT_CNT, MIN_PKT_SIZE);
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testapp_validate_traffic(test);
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pkt_stream_restore_default(test);
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break;
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case TEST_TYPE_POLL:
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test->ifobj_tx->use_poll = true;
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test->ifobj_rx->use_poll = true;
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@ -1272,6 +1289,12 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_
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test_spec_set_name(test, "ALIGNED_INV_DESC");
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testapp_invalid_desc(test);
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break;
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case TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME:
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test_spec_set_name(test, "ALIGNED_INV_DESC_2K_FRAME_SIZE");
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test->ifobj_tx->umem->frame_size = 2048;
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test->ifobj_rx->umem->frame_size = 2048;
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testapp_invalid_desc(test);
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break;
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case TEST_TYPE_UNALIGNED_INV_DESC:
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test_spec_set_name(test, "UNALIGNED_INV_DESC");
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test->ifobj_tx->umem->unaligned_mode = true;
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@ -54,9 +54,11 @@ enum test_mode {
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enum test_type {
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TEST_TYPE_RUN_TO_COMPLETION,
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TEST_TYPE_RUN_TO_COMPLETION_2K_FRAME,
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TEST_TYPE_POLL,
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TEST_TYPE_UNALIGNED,
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TEST_TYPE_ALIGNED_INV_DESC,
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TEST_TYPE_ALIGNED_INV_DESC_2K_FRAME,
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TEST_TYPE_UNALIGNED_INV_DESC,
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TEST_TYPE_TEARDOWN,
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TEST_TYPE_BIDI,
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