diff options
| author | Weqaar Janjua <weqaar.janjua@gmail.com> | 2020-12-07 21:53:31 +0000 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-12-09 16:44:45 +0100 |
| commit | 9103a8594d9324d8e1512442ba580e4e91d42c2d (patch) | |
| tree | 4a880824b12765b2bac99a2af13a7d50f6f76c9f /tools/testing/selftests/bpf/xdpxceiver.c | |
| parent | facb7cb2e909ad2d21ebbfdc051726d4cd8f1d35 (diff) | |
selftests/bpf: Xsk selftests - DRV POLL, NOPOLL
Adds following tests:
2. AF_XDP DRV/Native mode
Works on any netdevice with XDP_REDIRECT support, driver dependent.
Processes packets before SKB allocation. Provides better performance
than SKB. Driver hook available just after DMA of buffer descriptor.
a. nopoll
b. poll
* Only copy mode is supported because veth does not currently support
zero-copy mode
Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Yonghong Song <yhs@fb.com>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Link: https://lore.kernel.org/bpf/20201207215333.11586-4-weqaar.a.janjua@intel.com
Diffstat (limited to 'tools/testing/selftests/bpf/xdpxceiver.c')
| -rw-r--r-- | tools/testing/selftests/bpf/xdpxceiver.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 3f2a65b6a9f5..9fcd80a38b07 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.c +++ b/tools/testing/selftests/bpf/xdpxceiver.c @@ -27,7 +27,16 @@ * a. nopoll - soft-irq processing * b. poll - using poll() syscall * - * Total tests: 2 + * 2. AF_XDP DRV/Native mode + * Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes + * packets before SKB allocation. Provides better performance than SKB. Driver + * hook available just after DMA of buffer descriptor. + * a. nopoll + * b. poll + * - Only copy mode is supported because veth does not currently support + * zero-copy mode + * + * Total tests: 4 * * Flow: * ----- @@ -88,7 +97,7 @@ static void __exit_with_error(int error, const char *file, const char *func, int #define exit_with_error(error) __exit_with_error(error, __FILE__, __func__, __LINE__) #define print_ksft_result(void)\ - (ksft_test_result_pass("PASS: %s %s\n", uut ? "" : "SKB", opt_poll ? "POLL" : "NOPOLL")) + (ksft_test_result_pass("PASS: %s %s\n", uut ? "DRV" : "SKB", opt_poll ? "POLL" : "NOPOLL")) static void pthread_init_mutex(void) { @@ -311,6 +320,7 @@ static struct option long_options[] = { {"queue", optional_argument, 0, 'q'}, {"poll", no_argument, 0, 'p'}, {"xdp-skb", no_argument, 0, 'S'}, + {"xdp-native", no_argument, 0, 'N'}, {"copy", no_argument, 0, 'c'}, {"debug", optional_argument, 0, 'D'}, {"tx-pkt-count", optional_argument, 0, 'C'}, @@ -326,6 +336,7 @@ static void usage(const char *prog) " -q, --queue=n Use queue n (default 0)\n" " -p, --poll Use poll syscall\n" " -S, --xdp-skb=n Use XDP SKB mode\n" + " -N, --xdp-native=n Enforce XDP DRV (native) mode\n" " -c, --copy Force copy mode\n" " -D, --debug Debug mode - dump packets L2 - L5\n" " -C, --tx-pkt-count=n Number of packets to send\n"; @@ -417,7 +428,7 @@ static void parse_command_line(int argc, char **argv) opterr = 0; for (;;) { - c = getopt_long(argc, argv, "i:q:pScDC:", long_options, &option_index); + c = getopt_long(argc, argv, "i:q:pSNcDC:", long_options, &option_index); if (c == -1) break; @@ -448,6 +459,11 @@ static void parse_command_line(int argc, char **argv) opt_xdp_bind_flags |= XDP_COPY; uut = ORDER_CONTENT_VALIDATE_XDP_SKB; break; + case 'N': + opt_xdp_flags |= XDP_FLAGS_DRV_MODE; + opt_xdp_bind_flags |= XDP_COPY; + uut = ORDER_CONTENT_VALIDATE_XDP_DRV; + break; case 'c': opt_xdp_bind_flags |= XDP_COPY; break; |