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selftests: xsk: Add test case for packets at end of UMEM

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Add test case to testapp_invalid_desc for valid packets at the end of
the UMEM.

Signed-off-by: Kal Conley <kal.conley@dectris.com>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20230403145047.33065-3-kal.conley@dectris.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
This commit is contained in:
Kal Conley 2023-04-03 16:50:47 +02:00 • committed by Martin KaFai Lau
parent 7a2050df24
commit ccd1b2933f
1 changed files with 5 additions and 2 deletions
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7
tools/testing/selftests/bpf/xskxceiver.c
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@ -1662,6 +1662,8 @@ static void testapp_invalid_desc(struct test_spec *test)
{-2, PKT_SIZE, 0, false},
/* Packet too large */
{0x2000, XSK_UMEM__INVALID_FRAME_SIZE, 0, false},
/* Up to end of umem allowed */
{umem_size - PKT_SIZE, PKT_SIZE, 0, true},
/* After umem ends */
{umem_size, PKT_SIZE, 0, false},
/* Straddle the end of umem */
@ -1675,16 +1677,17 @@ static void testapp_invalid_desc(struct test_spec *test)
if (test->ifobj_tx->umem->unaligned_mode) {
/* Crossing a page boundrary allowed */
pkts[6].valid = true;
pkts[7].valid = true;
}
if (test->ifobj_tx->umem->frame_size == XSK_UMEM__DEFAULT_FRAME_SIZE / 2) {
/* Crossing a 2K frame size boundrary not allowed */
pkts[7].valid = false;
pkts[8].valid = false;
}
if (test->ifobj_tx->shared_umem) {
pkts[4].addr += umem_size;
pkts[5].addr += umem_size;
pkts[6].addr += umem_size;
}
pkt_stream_generate_custom(test, pkts, ARRAY_SIZE(pkts));