Commit ccd1b293 authored by Kal Conley's avatar Kal Conley Committed by Martin KaFai Lau
Browse files

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



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

Signed-off-by: default avatarKal Conley <kal.conley@dectris.com>
Acked-by: default avatarMagnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20230403145047.33065-3-kal.conley@dectris.com


Signed-off-by: default avatarMartin KaFai Lau <martin.lau@kernel.org>
parent 7a2050df

tools/testing/selftests/bpf/xskxceiver.c

+5 −2
Original line number Diff line number Diff line
@@ -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));