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| author | Björn Töpel <bjorn.topel@intel.com> | 2018-08-28 14:44:35 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2018-08-29 12:25:53 -0700 |
| commit | 58c50ae4a0b638ebbcdddf03cfa4fd36f0edeb02 (patch) | |
| tree | 57ce4ca973b0149808ac312a2642086424489a12 /samples | |
| parent | 1328dcddbd53900481994f4c4d8b79e64477965e (diff) | |
| download | linux-58c50ae4a0b638ebbcdddf03cfa4fd36f0edeb02.tar.gz linux-58c50ae4a0b638ebbcdddf03cfa4fd36f0edeb02.tar.bz2 linux-58c50ae4a0b638ebbcdddf03cfa4fd36f0edeb02.zip | |
samples/bpf: add -c/--copy -z/--zero-copy flags to xdpsock
The -c/--copy -z/--zero-copy flags enforces either copy or zero-copy
mode.
Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/xdpsock_user.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/samples/bpf/xdpsock_user.c b/samples/bpf/xdpsock_user.c index 4914788b6727..b3906111bedb 100644 --- a/samples/bpf/xdpsock_user.c +++ b/samples/bpf/xdpsock_user.c @@ -649,6 +649,8 @@ static struct option long_options[] = { {"xdp-skb", no_argument, 0, 'S'}, {"xdp-native", no_argument, 0, 'N'}, {"interval", required_argument, 0, 'n'}, + {"zero-copy", no_argument, 0, 'z'}, + {"copy", no_argument, 0, 'c'}, {0, 0, 0, 0} }; @@ -667,6 +669,8 @@ static void usage(const char *prog) " -S, --xdp-skb=n Use XDP skb-mod\n" " -N, --xdp-native=n Enfore XDP native mode\n" " -n, --interval=n Specify statistics update interval (default 1 sec).\n" + " -z, --zero-copy Force zero-copy mode.\n" + " -c, --copy Force copy mode.\n" "\n"; fprintf(stderr, str, prog); exit(EXIT_FAILURE); @@ -679,7 +683,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "rtli:q:psSNn:", long_options, + c = getopt_long(argc, argv, "rtli:q:psSNn:cz", long_options, &option_index); if (c == -1) break; @@ -716,6 +720,12 @@ static void parse_command_line(int argc, char **argv) case 'n': opt_interval = atoi(optarg); break; + case 'z': + opt_xdp_bind_flags |= XDP_ZEROCOPY; + break; + case 'c': + opt_xdp_bind_flags |= XDP_COPY; + break; default: usage(basename(argv[0])); } |