diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2023-02-01 11:24:23 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-02-02 20:48:24 -0800 |
| commit | 84050074e51b68e6f1d3e89ebe8f8f6d73472ec3 (patch) | |
| tree | 593d009fd00eb910b7ba28af7288673a9269e145 | |
| parent | b9d460c9245541b13de2369e79688f8e0acc0c3d (diff) | |
selftests/bpf: add test for bpf_xdp_query xdp-features support
Introduce a self-test to verify libbpf bpf_xdp_query capability to dump
the xdp-features supported by the device (lo and veth in this case).
Acked-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/534550318a2c883e174811683909544c63632f05.1675245258.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c | 27 | ||||
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/xdp_info.c | 8 |
2 files changed, 34 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c index ac70e871d62f..2666c84dbd01 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_do_redirect.c @@ -4,10 +4,12 @@ #include <net/if.h> #include <linux/if_ether.h> #include <linux/if_packet.h> +#include <linux/if_link.h> #include <linux/ipv6.h> #include <linux/in6.h> #include <linux/udp.h> #include <bpf/bpf_endian.h> +#include <uapi/linux/netdev.h> #include "test_xdp_do_redirect.skel.h" #define SYS(fmt, ...) \ @@ -96,7 +98,7 @@ void test_xdp_do_redirect(void) struct test_xdp_do_redirect *skel = NULL; struct nstoken *nstoken = NULL; struct bpf_link *link; - + LIBBPF_OPTS(bpf_xdp_query_opts, query_opts); struct xdp_md ctx_in = { .data = sizeof(__u32), .data_end = sizeof(data) }; DECLARE_LIBBPF_OPTS(bpf_test_run_opts, opts, @@ -157,6 +159,29 @@ void test_xdp_do_redirect(void) !ASSERT_NEQ(ifindex_dst, 0, "ifindex_dst")) goto out; + /* Check xdp features supported by veth driver */ + err = bpf_xdp_query(ifindex_src, XDP_FLAGS_DRV_MODE, &query_opts); + if (!ASSERT_OK(err, "veth_src bpf_xdp_query")) + goto out; + + if (!ASSERT_EQ(query_opts.feature_flags, + NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | + NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG | + NETDEV_XDP_ACT_NDO_XMIT_SG, + "veth_src query_opts.feature_flags")) + goto out; + + err = bpf_xdp_query(ifindex_dst, XDP_FLAGS_DRV_MODE, &query_opts); + if (!ASSERT_OK(err, "veth_dst bpf_xdp_query")) + goto out; + + if (!ASSERT_EQ(query_opts.feature_flags, + NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | + NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG | + NETDEV_XDP_ACT_NDO_XMIT_SG, + "veth_dst query_opts.feature_flags")) + goto out; + memcpy(skel->rodata->expect_dst, &pkt_udp.eth.h_dest, ETH_ALEN); skel->rodata->ifindex_out = ifindex_src; /* redirect back to the same iface */ skel->rodata->ifindex_in = ifindex_src; diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_info.c b/tools/testing/selftests/bpf/prog_tests/xdp_info.c index cd3aa340e65e..286c21ecdc65 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_info.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_info.c @@ -8,6 +8,7 @@ void serial_test_xdp_info(void) { __u32 len = sizeof(struct bpf_prog_info), duration = 0, prog_id; const char *file = "./xdp_dummy.bpf.o"; + LIBBPF_OPTS(bpf_xdp_query_opts, opts); struct bpf_prog_info info = {}; struct bpf_object *obj; int err, prog_fd; @@ -61,6 +62,13 @@ void serial_test_xdp_info(void) if (CHECK(prog_id, "prog_id_drv", "unexpected prog_id=%u\n", prog_id)) goto out; + /* Check xdp features supported by lo device */ + opts.feature_flags = ~0; + err = bpf_xdp_query(IFINDEX_LO, XDP_FLAGS_DRV_MODE, &opts); + if (!ASSERT_OK(err, "bpf_xdp_query")) + goto out; + + ASSERT_EQ(opts.feature_flags, 0, "opts.feature_flags"); out: bpf_xdp_detach(IFINDEX_LO, 0, NULL); out_close: |