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/test_xsk.sh | 24 ++++++++++++++++++++++++ tools/testing/selftests/bpf/xdpxceiver.c | 22 +++++++++++++++++++--- tools/testing/selftests/bpf/xdpxceiver.h | 3 ++- 3 files changed, 45 insertions(+), 4 deletions(-)
diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index 0b7bafb65f43..aad8065637fd 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -173,6 +173,30 @@ retval=$? test_status $retval "${TEST_NAME}" statusList+=($retval)
+### TEST 4 +TEST_NAME="DRV NOPOLL" + +vethXDPnative ${VETH0} ${VETH1} ${NS1} + +params=("-N") +execxdpxceiver params + +retval=$? +test_status $retval "${TEST_NAME}" +statusList+=($retval) + +### TEST 5 +TEST_NAME="DRV POLL" + +vethXDPnative ${VETH0} ${VETH1} ${NS1} + +params=("-N" "-p") +execxdpxceiver params + +retval=$? +test_status $retval "${TEST_NAME}" +statusList+=($retval) + ## END TESTS
cleanup_exit ${VETH0} ${VETH1} ${NS1} 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; diff --git a/tools/testing/selftests/bpf/xdpxceiver.h b/tools/testing/selftests/bpf/xdpxceiver.h index 5929f2fc1224..12070d66344b 100644 --- a/tools/testing/selftests/bpf/xdpxceiver.h +++ b/tools/testing/selftests/bpf/xdpxceiver.h @@ -38,7 +38,7 @@ #define SOCK_RECONF_CTR 10 #define BATCH_SIZE 64 #define POLL_TMOUT 1000 -#define NEED_WAKEUP 1 +#define NEED_WAKEUP true
typedef __u32 u32; typedef __u16 u16; @@ -46,6 +46,7 @@ typedef __u8 u8;
enum TESTS { ORDER_CONTENT_VALIDATE_XDP_SKB = 0, + ORDER_CONTENT_VALIDATE_XDP_DRV = 1, };
u8 uut;