selftests/xsk: add unaligned mode test for multi-buffer

Add a test for multi-buffer AF_XDP when using unaligned mode. The test
sends 4096 9K-buffers.

Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Link: https://lore.kernel.org/r/20230719132421.584801-21-maciej.fijalkowski@intel.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c
index 6fb682facce599cea091349cb0273d9d1c069105..0a1e693e5713b09c4295510fc7f5eb02bc0808cb 100644 (file)
--- a/tools/testing/selftests/bpf/xskxceiver.c
+++ b/tools/testing/selftests/bpf/xskxceiver.c
@@ -50,6 +50,8 @@
  *       are discarded and let through, respectively.
  *    i. 2K frame size tests
  *    j. If multi-buffer is supported, send 9k packets divided into 3 frames
+ *    k. If multi-buffer and huge pages are supported, send 9k packets in a single frame
+ *       using unaligned mode
  *
  * Total tests: 12
  *
@@ -1761,6 +1763,16 @@ static int testapp_unaligned(struct test_spec *test)
        return testapp_validate_traffic(test);
 }
 
+static int testapp_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;
+       pkt_stream_replace(test, DEFAULT_PKT_CNT, MAX_ETH_JUMBO_SIZE);
+       return testapp_validate_traffic(test);
+}
+
 static int testapp_single_pkt(struct test_spec *test)
 {
        struct pkt pkts[] = {{0, MIN_PKT_SIZE, 0, true}};
@@ -2038,6 +2050,9 @@ static void run_pkt_test(struct test_spec *test, enum test_mode mode, enum test_
        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;

diff --git a/tools/testing/selftests/bpf/xskxceiver.h b/tools/testing/selftests/bpf/xskxceiver.h
index cfc7c572fd2cb9247f641dd1faf70c9dc2ba2a84..48cb48f1c5e6637f46ebadbe460ebd67db0c5792 100644 (file)
--- a/tools/testing/selftests/bpf/xskxceiver.h
+++ b/tools/testing/selftests/bpf/xskxceiver.h
@@ -86,6 +86,7 @@ enum test_type {
        TEST_TYPE_XDP_DROP_HALF,
        TEST_TYPE_XDP_METADATA_COUNT,
        TEST_TYPE_RUN_TO_COMPLETION_MB,
+       TEST_TYPE_UNALIGNED_MB,
        TEST_TYPE_MAX
 };