netdev - [PATCH bpf-next 5/5] xdpsock_user: Add skip

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Date:   Wed, 14 Aug 2019 20:46:23 -0700
From:   Sridhar Samudrala <sridhar.samudrala@...el.com>
To:     magnus.karlsson@...el.com, bjorn.topel@...el.com,
        netdev@...r.kernel.org, bpf@...r.kernel.org,
        sridhar.samudrala@...el.com, intel-wired-lan@...ts.osuosl.org,
        maciej.fijalkowski@...el.com, tom.herbert@...el.com
Subject: [PATCH bpf-next 5/5] xdpsock_user: Add skip_bpf option

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@...el.com>
---
 samples/bpf/xdpsock_user.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c
index 93eaaf7239b2..509fc6a18af9 100644
--- a/samples/bpf/xdpsock_user.c
+++ b/samples/bpf/xdpsock_user.c
@@ -123,6 +123,9 @@ static void print_benchmark(bool running)
 	if (opt_poll)
 		printf("poll() ");
 
+	if (opt_xdp_bind_flags & XDP_SKIP_BPF)
+		printf("skip-bpf ");
+
 	if (running) {
 		printf("running...");
 		fflush(stdout);
@@ -352,6 +355,7 @@ static struct option long_options[] = {
 	{"zero-copy", no_argument, 0, 'z'},
 	{"copy", no_argument, 0, 'c'},
 	{"frame-size", required_argument, 0, 'f'},
+	{"skip-bpf", no_argument, 0, 's'},
 	{0, 0, 0, 0}
 };
 
@@ -372,6 +376,7 @@ static void usage(const char *prog)
 		"  -z, --zero-copy      Force zero-copy mode.\n"
 		"  -c, --copy           Force copy mode.\n"
 		"  -f, --frame-size=n   Set the frame size (must be a power of two, default is %d).\n"
+		"  -s, --skip-bpf       Skip running bpf program.\n"
 		"\n";
 	fprintf(stderr, str, prog, XSK_UMEM__DEFAULT_FRAME_SIZE);
 	exit(EXIT_FAILURE);
@@ -430,6 +435,9 @@ static void parse_command_line(int argc, char **argv)
 		case 'f':
 			opt_xsk_frame_size = atoi(optarg);
 			break;
+		case 's':
+			opt_xdp_bind_flags |= XDP_SKIP_BPF;
+			break;
 		default:
 			usage(basename(argv[0]));
 		}
-- 
2.20.1