git/linux-cryptodev-2.6
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git synced 2026-04-27 03:49:57 -04:00
Code Issues Packages Projects Releases Wiki Activity

bpf: selftests: add CPUMAP/DEVMAP selftests for xdp frags

Browse Source 
Verify compatibility checks attaching a XDP frags program to a
CPUMAP/DEVMAP

Acked-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/d94b4d35adc1e42c9ca5004e6b2cdfd75992304d.1642758637.git.lorenzo@kernel.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Lorenzo Bianconi
2022-01-21 11:10:05 +01:00
committed by Alexei Starovoitov
parent 6db28e24ae
commit 0c5e118cb4
6 changed files with 185 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
tools/testing/selftests/bpf/prog_tests/xdp_devmap_attach.c
View File

@@ -4,6 +4,7 @@
#include <test_progs.h>
#include "test_xdp_devmap_helpers.skel.h"
#include "test_xdp_with_devmap_frags_helpers.skel.h"
#include "test_xdp_with_devmap_helpers.skel.h"
#define IFINDEX_LO 1
@@ -56,6 +57,15 @@ static void test_xdp_with_devmap_helpers(void)
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_NEQ(err, 0, "Add non-BPF_XDP_DEVMAP program to devmap entry");
/* Try to attach BPF_XDP program with frags to devmap when we have
* already loaded a BPF_XDP program on the map
*/
idx = 1;
val.ifindex = 1;
val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_dm_frags);
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_NEQ(err, 0, "Add BPF_XDP program with frags to devmap entry");
out_close:
test_xdp_with_devmap_helpers__destroy(skel);
}
@@ -71,12 +81,57 @@ static void test_neg_xdp_devmap_helpers(void)
}
}
void test_xdp_with_devmap_frags_helpers(void)
{
struct test_xdp_with_devmap_frags_helpers *skel;
struct bpf_prog_info info = {};
struct bpf_devmap_val val = {
.ifindex = IFINDEX_LO,
};
__u32 len = sizeof(info);
int err, dm_fd_frags, map_fd;
__u32 idx = 0;
skel = test_xdp_with_devmap_frags_helpers__open_and_load();
if (!ASSERT_OK_PTR(skel, "test_xdp_with_devmap_helpers__open_and_load"))
return;
dm_fd_frags = bpf_program__fd(skel->progs.xdp_dummy_dm_frags);
map_fd = bpf_map__fd(skel->maps.dm_ports);
err = bpf_obj_get_info_by_fd(dm_fd_frags, &info, &len);
if (!ASSERT_OK(err, "bpf_obj_get_info_by_fd"))
goto out_close;
val.bpf_prog.fd = dm_fd_frags;
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_OK(err, "Add frags program to devmap entry");
err = bpf_map_lookup_elem(map_fd, &idx, &val);
ASSERT_OK(err, "Read devmap entry");
ASSERT_EQ(info.id, val.bpf_prog.id,
"Match program id to devmap entry prog_id");
/* Try to attach BPF_XDP program to devmap when we have
* already loaded a BPF_XDP program with frags on the map
*/
idx = 1;
val.ifindex = 1;
val.bpf_prog.fd = bpf_program__fd(skel->progs.xdp_dummy_dm);
err = bpf_map_update_elem(map_fd, &idx, &val, 0);
ASSERT_NEQ(err, 0, "Add BPF_XDP program to devmap entry");
out_close:
test_xdp_with_devmap_frags_helpers__destroy(skel);
}
void serial_test_xdp_devmap_attach(void)
{
if (test__start_subtest("DEVMAP with programs in entries"))
test_xdp_with_devmap_helpers();
if (test__start_subtest("DEVMAP with frags programs in entries"))
test_xdp_with_devmap_frags_helpers();
if (test__start_subtest("Verifier check of DEVMAP programs"))
test_neg_xdp_devmap_helpers();
}