This commit adds an optional -z flag to xdp_helper. When this flag is provided, the XDP socket binding is forced to be in zerocopy mode.
Signed-off-by: Bui Quang Minh <[email protected]> --- tools/testing/selftests/net/lib/xdp_helper.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/net/lib/xdp_helper.c b/tools/testing/selftests/net/lib/xdp_helper.c index aeed25914104..6afd77bfbe8b 100644 --- a/tools/testing/selftests/net/lib/xdp_helper.c +++ b/tools/testing/selftests/net/lib/xdp_helper.c @@ -81,8 +81,9 @@ int main(int argc, char **argv) int sock_fd; int queue; - if (argc != 3) { - fprintf(stderr, "Usage: %s ifindex queue_id\n", argv[0]); + if (argc != 3 && argc != 4) { + fprintf(stderr, "Usage: %s ifindex queue_id [-z]\n\n" + "where:\n\t-z: force zerocopy mode", argv[0]); return 1; } @@ -132,6 +133,14 @@ int main(int argc, char **argv) sxdp.sxdp_queue_id = queue; sxdp.sxdp_flags = 0; + if (argc == 4 && strcmp(argv[3], "-z")) { + fprintf(stderr, "Usage: %s ifindex queue_id [-z]\n\n" + "where:\n\t-z: force zerocopy mode\n", argv[0]); + return 1; + } else if (argc == 4) { + sxdp.sxdp_flags = XDP_ZEROCOPY; + } + if (bind(sock_fd, (struct sockaddr *)&sxdp, sizeof(sxdp)) != 0) { munmap(umem_area, UMEM_SZ); perror("bind failed"); -- 2.43.0
