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 --- tools/testing/selftests/bpf/Makefile | 4 +++- .../selftests/bpf/test_xsk_drv_nopoll.sh | 20 ++++++++++++++++ .../selftests/bpf/test_xsk_drv_poll.sh | 23 +++++++++++++++++++ .../selftests/bpf/test_xsk_skb_poll.sh | 3 --- tools/testing/selftests/bpf/xdpxceiver.c | 22 +++++++++++++++--- tools/testing/selftests/bpf/xdpxceiver.h | 1 + 6 files changed, 66 insertions(+), 7 deletions(-) create mode 100755 tools/testing/selftests/bpf/test_xsk_drv_nopoll.sh create mode 100755 tools/testing/selftests/bpf/test_xsk_drv_poll.sh
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 17af570a32d7..9dd3f3b9014f 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -74,7 +74,9 @@ TEST_PROGS := test_kmod.sh \ test_bpftool_metadata.sh \ test_xsk_prerequisites.sh \ test_xsk_skb_nopoll.sh \ - test_xsk_skb_poll.sh + test_xsk_skb_poll.sh \ + test_xsk_drv_nopoll.sh \ + test_xsk_drv_poll.sh
TEST_PROGS_EXTENDED := with_addr.sh \ with_tunnels.sh \ diff --git a/tools/testing/selftests/bpf/test_xsk_drv_nopoll.sh b/tools/testing/selftests/bpf/test_xsk_drv_nopoll.sh new file mode 100755 index 000000000000..a7e895bc4bfd --- /dev/null +++ b/tools/testing/selftests/bpf/test_xsk_drv_nopoll.sh @@ -0,0 +1,20 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright(c) 2020 Intel Corporation. + +# See test_xsk_prerequisites.sh for detailed information on tests + +. xsk_prereqs.sh +. xsk_env.sh + +TEST_NAME="DRV NOPOLL" + +vethXDPnative ${VETH0} ${VETH1} ${NS1} + +params=("-N") +execxdpxceiver params + +retval=$? +test_status $retval "${TEST_NAME}" + +test_exit $retval 0 diff --git a/tools/testing/selftests/bpf/test_xsk_drv_poll.sh b/tools/testing/selftests/bpf/test_xsk_drv_poll.sh new file mode 100755 index 000000000000..1fe488d5794a --- /dev/null +++ b/tools/testing/selftests/bpf/test_xsk_drv_poll.sh @@ -0,0 +1,23 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright(c) 2020 Intel Corporation. + +# See test_xsk_prerequisites.sh for detailed information on tests + +. xsk_prereqs.sh +. xsk_env.sh + +TEST_NAME="DRV POLL" + +vethXDPnative ${VETH0} ${VETH1} ${NS1} + +params=("-N" "-p") +execxdpxceiver params + +retval=$? +test_status $retval "${TEST_NAME}" + +# Must be called in the last test to execute +cleanup_exit ${VETH0} ${VETH1} ${NS1} + +test_exit $retval 0 diff --git a/tools/testing/selftests/bpf/test_xsk_skb_poll.sh b/tools/testing/selftests/bpf/test_xsk_skb_poll.sh index d152c8a24251..962a89b40a32 100755 --- a/tools/testing/selftests/bpf/test_xsk_skb_poll.sh +++ b/tools/testing/selftests/bpf/test_xsk_skb_poll.sh @@ -17,7 +17,4 @@ execxdpxceiver params retval=$? test_status $retval "${TEST_NAME}"
-# Must be called in the last test to execute -cleanup_exit ${VETH0} ${VETH1} ${NS1} - test_exit $retval 0 diff --git a/tools/testing/selftests/bpf/xdpxceiver.c b/tools/testing/selftests/bpf/xdpxceiver.c index 106307155bbe..e998200502de 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: * ----- @@ -87,7 +96,7 @@ 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) { @@ -310,6 +319,7 @@ 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'}, @@ -325,6 +335,7 @@ 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"; @@ -416,7 +427,7 @@ 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; @@ -446,6 +457,11 @@ 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; diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 32ee33311141..dba47e818466 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -44,6 +44,7 @@ typedef __u8 u8;
enum TESTS { ORDER_CONTENT_VALIDATE_XDP_SKB = 0, + ORDER_CONTENT_VALIDATE_XDP_DRV = 1, };
u8 uut;