@@ -271,6 +271,30 @@ retval=$?
test_status $retval "${TEST_NAME}"
statusList+=($retval)
+### TEST 12
+TEST_NAME="SKB TRACE DROP PKT_TOO_BIG"
+
+vethXDPgeneric ${VETH0} ${VETH1} ${NS1}
+
+params=("-S" "-t" "1" "-C" "${TRACEPKTS}")
+execxdpxceiver params
+
+retval=$?
+test_status $retval "${TEST_NAME}"
+statusList+=($retval)
+
+### TEST 13
+TEST_NAME="DRV TRACE DROP PKT_TOO_BIG"
+
+vethXDPnative ${VETH0} ${VETH1} ${NS1}
+
+params=("-N" "-t" "1" "-C" "${TRACEPKTS}")
+execxdpxceiver params
+
+retval=$?
+test_status $retval "${TEST_NAME}"
+statusList+=($retval)
+
## END TESTS
cleanup_exit ${VETH0} ${VETH1} ${NS1}
@@ -35,6 +35,8 @@
* mode is used
* e. Tracing - XSK_TRACE_DROP_RXQ_FULL
* Reduce the RXQ size and do not read from it. Validate traces.
+ * f. Tracing - XSK_TRACE_DROP_PKT_TOO_BIG
+ * Increase the headroom size and send packets. Validate traces.
*
* 2. AF_XDP DRV/Native mode
* Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes
@@ -47,8 +49,9 @@
* - Only copy mode is supported because veth does not currently support
* zero-copy mode
* e. Tracing - XSK_TRACE_DROP_RXQ_FULL
+ * f. Tracing - XSK_TRACE_DROP_PKT_TOO_BIG
*
- * Total tests: 10
+ * Total tests: 12
*
* Flow:
* -----
@@ -275,13 +278,23 @@ static void gen_eth_frame(struct xsk_umem_info *umem, u64 addr)
static void xsk_configure_umem(struct ifobject *data, void *buffer, u64 size)
{
int ret;
+ struct xsk_umem_config cfg = {
+ .fill_size = XSK_RING_PROD__DEFAULT_NUM_DESCS,
+ .comp_size = XSK_RING_CONS__DEFAULT_NUM_DESCS,
+ .frame_size = XSK_UMEM__DEFAULT_FRAME_SIZE,
+ .frame_headroom = XSK_UMEM__DEFAULT_FRAME_HEADROOM,
+ .flags = XSK_UMEM__DEFAULT_FLAGS
+ };
+
+ if (opt_trace_code == XSK_TRACE_DROP_PKT_TOO_BIG)
+ cfg.frame_headroom = XSK_UMEM__DEFAULT_FRAME_SIZE - XDP_PACKET_HEADROOM - 1;
data->umem = calloc(1, sizeof(struct xsk_umem_info));
if (!data->umem)
exit_with_error(errno);
ret = xsk_umem__create(&data->umem->umem, buffer, size,
- &data->umem->fq, &data->umem->cq, NULL);
+ &data->umem->fq, &data->umem->cq, &cfg);
if (ret)
exit_with_error(ret);
@@ -1171,6 +1184,10 @@ int main(int argc, char **argv)
expected_traces = opt_pkt_count - TRACE_RXQ_FULL_RXQ_SIZE;
reason_str = "rxq full";
break;
+ case XSK_TRACE_DROP_PKT_TOO_BIG:
+ expected_traces = opt_pkt_count;
+ reason_str = "packet too big";
+ break;
default:
ksft_test_result_fail("ERROR: unsupported trace %i\n",
opt_trace_code);
This test increases the UMEM headroom to a size that will cause packets to be dropped. Traces which report these drops are expected. The test validates that these traces were successfully generated. Signed-off-by: Ciara Loftus <ciara.loftus@intel.com> --- tools/testing/selftests/bpf/test_xsk.sh | 24 ++++++++++++++++++++++++ tools/testing/selftests/bpf/xdpxceiver.c | 21 +++++++++++++++++++-- 2 files changed, 43 insertions(+), 2 deletions(-)