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Using a fixed delay of 1 microsecond has proven flaky in slow CPU environment,
e.g. Github Actions CI system. This patch adds exponential backoff with a cap
of 50ms to reduce the flakiness of the test. Initial delay is chosen at random
in the range [0ms, 5ms).
Signed-off-by: Yucong Sun <fallentree@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20210816175250.296110-1-fallentree@fb.com
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Add two new test cases in sockmap tests, where unix stream is
redirected to tcp and vice versa.
Signed-off-by: Jiang Wang <jiang.wang@bytedance.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20210816190327.2739291-6-jiang.wang@bytedance.com
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This is to prepare for adding new unix stream tests.
Mostly renames, also pass the socket types as an argument.
Signed-off-by: Jiang Wang <jiang.wang@bytedance.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20210816190327.2739291-5-jiang.wang@bytedance.com
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Add two tests for unix stream to unix stream redirection
in sockmap tests.
Signed-off-by: Jiang Wang <jiang.wang@bytedance.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210816190327.2739291-4-jiang.wang@bytedance.com
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Add test for btf__load_vmlinux_btf/btf__load_module_btf APIs. The test
loads bpf_testmod module BTF and check existence of a symbol which is
known to exist.
Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210815081035.205879-1-hengqi.chen@gmail.com
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Extend attach_probe selftests to specify ref_ctr_offset for uprobe/uretprobe
and validate that its value is incremented from zero.
Turns out that once uprobe is attached with ref_ctr_offset, uretprobe for the
same location/function *has* to use ref_ctr_offset as well, otherwise
perf_event_open() fails with -EINVAL. So this test uses ref_ctr_offset for
both uprobe and uretprobe, even though for the purpose of test uprobe would be
enough.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210815070609.987780-17-andrii@kernel.org
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Add selftest with few subtests testing proper bpf_cookie usage.
Kprobe and uprobe subtests are pretty straightforward and just validate that
the same BPF program attached with different bpf_cookie will be triggered with
those different bpf_cookie values.
Tracepoint subtest is a bit more interesting, as it is the only
perf_event-based BPF hook that shares bpf_prog_array between multiple
perf_events internally. This means that the same BPF program can't be attached
to the same tracepoint multiple times. So we have 3 identical copies. This
arrangement allows to test bpf_prog_array_copy()'s handling of bpf_prog_array
list manipulation logic when programs are attached and detached. The test
validates that bpf_cookie isn't mixed up and isn't lost during such list
manipulations.
Perf_event subtest validates that two BPF links can be created against the
same perf_event (but not at the same time, only one BPF program can be
attached to perf_event itself), and that for each we can specify different
bpf_cookie value.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210815070609.987780-15-andrii@kernel.org
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Extract two helpers used for working with uprobes into trace_helpers.{c,h} to
be re-used between multiple uprobe-using selftests. Also rename get_offset()
into more appropriate get_uprobe_offset().
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210815070609.987780-14-andrii@kernel.org
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Add tests utilizing low-level bpf_link_create() API to create perf BPF link.
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210815070609.987780-13-andrii@kernel.org
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This patch adds various "positive" patterns for "%c" and two "negative"
patterns for wide character.
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210814015718.42704-5-kuniyu@amazon.co.jp
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The iterator can output almost the same result compared to /proc/net/unix.
The header line is aligned, and the Inode column uses "%8lu" because "%5lu"
can be easily overflown.
# cat /sys/fs/bpf/unix
Num RefCount Protocol Flags Type St Inode Path
ffff963c06689800: 00000002 00000000 00010000 0001 01 18697 private/defer
ffff963c7c979c00: 00000002 00000000 00000000 0001 01 598245 @Hello@World@
# cat /proc/net/unix
Num RefCount Protocol Flags Type St Inode Path
ffff963c06689800: 00000002 00000000 00010000 0001 01 18697 private/defer
ffff963c7c979c00: 00000002 00000000 00000000 0001 01 598245 @Hello@World@
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210814015718.42704-4-kuniyu@amazon.co.jp
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Add extra calls to sockopt_sk.c.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210813230530.333779-3-sdf@google.com
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The "probed" part of test_core_autosize copies an integer using
bpf_core_read() into an integer of a potentially different size.
On big-endian machines a destination offset is required for this to
produce a sensible result.
Fixes: 888d83b961f6 ("selftests/bpf: Validate libbpf's auto-sizing of LD/ST/STX instructions")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210812224814.187460-1-iii@linux.ibm.com
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Currently weak typeless ksyms have default value zero, when they don't
exist in the kernel. However, weak typed ksyms are rejected by libbpf
if they can not be resolved. This means that if a bpf object contains
the declaration of a nonexistent weak typed ksym, it will be rejected
even if there is no program that references the symbol.
Nonexistent weak typed ksyms can also default to zero just like
typeless ones. This allows programs that access weak typed ksyms to be
accepted by verifier, if the accesses are guarded. For example,
extern const int bpf_link_fops3 __ksym __weak;
/* then in BPF program */
if (&bpf_link_fops3) {
/* use bpf_link_fops3 */
}
If actual use of nonexistent typed ksym is not guarded properly,
verifier would see that register is not PTR_TO_BTF_ID and wouldn't
allow to use it for direct memory reads or passing it to BPF helpers.
Signed-off-by: Hao Luo <haoluo@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210812003819.2439037-1-haoluo@google.com
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An "innocent" cleanup in the last version of the XDP bonding patchset moved
the "test__start_subtest" calls to the test main function, but I forgot to
reverse the condition, which lead to all tests being skipped. Fix it.
Fixes: 6aab1c81b98a ("selftests/bpf: Add tests for XDP bonding")
Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210811123627.20223-1-joamaki@gmail.com
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This change extends the existing GRO coalesce test to
allow running on top of a veth pair, so that no H/W dep
is required to run them.
By default gro.sh will use the veth backend, and will try
to use exiting H/W in loopback mode if a specific device
name is provided with the '-i' command line option.
No functional change is intended for the loopback-based
tests, just move all the relevant initialization/cleanup
code into the related script.
Introduces a new initialization helper script for the
veth backend, and plugs the correct helper script according
to the provided command line.
Additionally, enable veth-based tests by default.
v1 -> v2:
- drop unused code in setup_veth_ns() - Willem
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch added a function chk_fail_nr to check the mibs for MP_FAIL.
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There are several test cases in the net directory are still using
exit 0 or exit 1 when they need to be skipped. Use kselftest
framework skip code instead so it can help us to distinguish the
return status.
Criterion to filter out what should be fixed in net directory:
grep -r "exit [01]" -B1 | grep -i skip
This change might cause some false-positives if people are running
these test scripts directly and only checking their return codes,
which will change from 0 to 4. However I think the impact should be
small as most of our scripts here are already using this skip code.
And there will be no such issue if running them with the kselftest
framework.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20210823085854.40216-1-po-hsu.lin@canonical.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch added an extra test for the singal_address_tests() to do the
ADD_ADDR and ADD_ADDR_ECHO race test.
Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Yonglong Li <liyonglong@chinatelecom.cn>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This silences the following coccinelle warning:
"WARNING: sum of probable bitmasks, consider |"
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: jing yangyang <jing.yangyang@zte.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
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drivers/ptp/Kconfig:
55c8fca1dae1 ("ptp_pch: Restore dependency on PCI")
e5f31552674e ("ethernet: fix PTP_1588_CLOCK dependencies")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 09e856d54bda ("vrf: Reset skb conntrack connection on VRF rcv")
fixes the "reverse-DNAT" of an SNAT-ed packet over a VRF.
This patch adds a test for this scenario.
Signed-off-by: Lahav Schlesinger <lschlesinger@drivenets.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the NCI testcase reading T4T Tag that has NFC TEST in plain text.
the virtual device application acts as T4T Tag in this testcase.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To reuse the start/stop discovery code in other testcase, extract the code.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To reuse the send_cmd_mt_nla for NLM_F_REQUEST and NLM_F_DUMP flag,
add the flags parameter to the function.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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memcpy should be executed only in case nla_len's value is greater than 0.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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nlattr could have a padding for 4 bytes alignment. So next nla's offset
should be calculated with a padding.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix typo: rep_len -> resp_len
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Because the virtual NCI device uses Wait Queue, the virtual device
application doesn't need to poll the NCI frame.
Signed-off-by: Bongsu Jeon <bongsu.jeon@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The removing addresses testcases can only deal with the continuous ids.
This patch added the uncontinuous removing ids support.
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch added the testcases for the fullmesh address flag of the path
manager.
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch dealt with the MPTCP_PM_ADDR_FLAG_FULLMESH flag in add_addr()
and print_addr(), to set and print out the fullmesh flag.
Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As previously discussed with David Ahern, here is a refactored and improved
version of the IOAM self-test. It is now more complete and more robust. Now,
all tests are divided into three categories: OUTPUT (evaluates the IOAM
processing by the sender), INPUT (evaluates the IOAM processing by the receiver)
and GLOBAL (evaluates wider use cases that do not fall into the other two
categories). Both OUTPUT and INPUT tests only use a two-node topology (alpha and
beta), while GLOBAL tests use the entire three-node topology (alpha, beta,
gamma). Each test is documented inside its own handler in the (bash) script.
Signed-off-by: Justin Iurman <justin.iurman@uliege.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add more test-case for link failures scenario,
including recovery from link failure using only
backup subflows and bi-directional transfer.
Additionally explicitly check for stale count
Co-developed-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Daniel Borkmann says:
====================
bpf-next 2021-08-10
We've added 31 non-merge commits during the last 8 day(s) which contain
a total of 28 files changed, 3644 insertions(+), 519 deletions(-).
1) Native XDP support for bonding driver & related BPF selftests, from Jussi Maki.
2) Large batch of new BPF JIT tests for test_bpf.ko that came out as a result from
32-bit MIPS JIT development, from Johan Almbladh.
3) Rewrite of netcnt BPF selftest and merge into test_progs, from Stanislav Fomichev.
4) Fix XDP bpf_prog_test_run infra after net to net-next merge, from Andrii Nakryiko.
5) Follow-up fix in unix_bpf_update_proto() to enforce socket type, from Cong Wang.
6) Fix bpf-iter-tcp4 selftest to print the correct dest IP, from Jose Blanquicet.
7) Various misc BPF XDP sample improvements, from Niklas Söderlund, Matthew Cover,
and Muhammad Falak R Wani.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (31 commits)
bpf, tests: Add tail call test suite
bpf, tests: Add tests for BPF_CMPXCHG
bpf, tests: Add tests for atomic operations
bpf, tests: Add test for 32-bit context pointer argument passing
bpf, tests: Add branch conversion JIT test
bpf, tests: Add word-order tests for load/store of double words
bpf, tests: Add tests for ALU operations implemented with function calls
bpf, tests: Add more ALU64 BPF_MUL tests
bpf, tests: Add more BPF_LSH/RSH/ARSH tests for ALU64
bpf, tests: Add more ALU32 tests for BPF_LSH/RSH/ARSH
bpf, tests: Add more tests of ALU32 and ALU64 bitwise operations
bpf, tests: Fix typos in test case descriptions
bpf, tests: Add BPF_MOV tests for zero and sign extension
bpf, tests: Add BPF_JMP32 test cases
samples, bpf: Add an explict comment to handle nested vlan tagging.
selftests/bpf: Add tests for XDP bonding
selftests/bpf: Fix xdp_tx.c prog section name
net, core: Allow netdev_lower_get_next_private_rcu in bh context
bpf, devmap: Exclude XDP broadcast to master device
net, bonding: Add XDP support to the bonding driver
...
====================
Link: https://lore.kernel.org/r/20210810130038.16927-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add a test suite to test XDP bonding implementation over a pair of
veth devices.
Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210731055738.16820-8-joamaki@gmail.com
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The program type cannot be deduced from 'tx' which causes an invalid
argument error when trying to load xdp_tx.o using the skeleton.
Rename the section name to "xdp" so that libbpf can deduce the type.
Signed-off-by: Jussi Maki <joamaki@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210731055738.16820-7-joamaki@gmail.com
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BPF programs for reference_tracking selftest use "fail_" prefix to notify that
they are expected to fail. This is really confusing and inconvenient when
trying to grep through test_progs output to find *actually* failed tests. So
rename the prefix from "fail_" to "err_".
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210805230734.437914-1-andrii@kernel.org
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Currently, this test is incorrectly printing the destination port in
place of the destination IP.
Fixes: 2767c97765cb ("selftests/bpf: Implement sample tcp/tcp6 bpf_iter programs")
Signed-off-by: Jose Blanquicet <josebl@microsoft.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210805164044.527903-1-josebl@microsoft.com
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Rewrite to skel and ASSERT macros as well while we are at it.
v3:
- replace -f with -A to make it work with busybox ping.
-A is available on both busybox and iputils, from the man page:
On networks with low RTT this mode is essentially equivalent to
flood mode.
v2:
- don't check result of bpf_map__fd (Yonghong Song)
- remove from .gitignore (Andrii Nakryiko)
- move ping_command into network_helpers (Andrii Nakryiko)
- remove assert() (Andrii Nakryiko)
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210804205524.3748709-1-sdf@google.com
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Build failure in drivers/net/wwan/mhi_wwan_mbim.c:
add missing parameter (0, assuming we don't want buffer pre-alloc).
Conflict in drivers/net/dsa/sja1105/sja1105_main.c between:
589918df9322 ("net: dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too")
0fac6aa098ed ("net: dsa: sja1105: delete the best_effort_vlan_filtering mode")
Follow the instructions from the commit message of the former commit
- removed the if conditions. When looking at commit 589918df9322 ("net:
dsa: sja1105: be stateless with FDB entries on SJA1105P/Q/R/S/SJA1110 too")
note that the mask_iotag fields get removed by the following patch.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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To verify that this hash implements the Toeplitz hash function.
Additionally, provide a script toeplitz.sh to run the test in loopback mode
on a networking device of choice (see setup_loopback.sh). Since the
script modifies the NIC setup, it will not be run by selftests
automatically.
Tested:
./toeplitz.sh -i eth0 -irq_prefix <eth0_pattern> -t -6
carrier ready
rxq 0: cpu 14
rxq 1: cpu 20
rxq 2: cpu 17
rxq 3: cpu 23
cpu 14: rx_hash 0x69103ebc [saddr fda8::2 daddr fda8::1 sport 58938 dport 8000] OK rxq 0 (cpu 14)
...
cpu 20: rx_hash 0x257118b9 [saddr fda8::2 daddr fda8::1 sport 59258 dport 8000] OK rxq 1 (cpu 20)
count: pass=111 nohash=0 fail=0
Test Succeeded!
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Implement a GRO testsuite that expects Linux kernel GRO behavior.
All tests pass with the kernel software GRO stack. Run against a device
with hardware GRO to verify that it matches the software stack.
gro.c generates packets and sends them out through a packet socket. The
receiver in gro.c (run separately) receives the packets on a packet
socket, filters them by destination ports using BPF and checks the
packet geometry to see whether GRO was applied.
gro.sh provides a wrapper to run the gro.c in NIC loopback mode.
It is not included in continuous testing because it modifies network
configuration around a physical NIC: gro.sh sets the NIC in loopback
mode, creates macvlan devices on the physical device in separate
namespaces, and sends traffic generated by gro.c between the two
namespaces to observe coalescing behavior.
GRO coalescing is time sensitive.
Some tests may prove flaky on some hardware.
Note that this test suite tests for software GRO unless hardware GRO is
enabled (ethtool -K $DEV rx-gro-hw on).
To test, run ./gro.sh.
The wrapper will output success or failed test names, and generate
log.txt and stderr.
Sample log.txt result:
...
pure data packet of same size: Test succeeded
large data packets followed by a smaller one: Test succeeded
small data packets followed by a larger one: Test succeeded
...
Sample stderr result:
...
carrier ready
running test ipv4 data
Expected {200 }, Total 1 packets
Received {200 }, Total 1 packets.
...
Signed-off-by: Coco Li <lixiaoyan@google.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Recently we added multi-queue support to netdevsim in commit d4861fc6be58
("netdevsim: Add multi-queue support"); add a few control-plane selftests
for sch_mq using this new feature.
Use nsPlugin.py to avoid network interface name collisions.
Reviewed-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds OOB support for AF_UNIX sockets.
The semantics is same as TCP.
The last byte of a message with the OOB flag is
treated as the OOB byte. The byte is separated into
a skb and a pointer to the skb is stored in unix_sock.
The pointer is used to enforce OOB semantics.
Signed-off-by: Rao Shoaib <rao.shoaib@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch removed the 'raw gso min size - 1' test which
always fails now:
./in_netns.sh ./psock_snd -v -c -g -l "${mss}"
raw gso min size - 1 (expected to fail)
tx: 1524
rx: 1472
OK
After commit 7c6d2ecbda83 ("net: be more gentle about silly
gso requests coming from user"), we relaxed the min gso_size
check in virtio_net_hdr_to_skb().
So when a packet which is smaller then the gso_size,
GSO for this packet will not be set, the packet will be
send/recv successfully.
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Andrii Nakryiko says:
====================
bpf-next 2021-07-30
We've added 64 non-merge commits during the last 15 day(s) which contain
a total of 83 files changed, 5027 insertions(+), 1808 deletions(-).
The main changes are:
1) BTF-guided binary data dumping libbpf API, from Alan.
2) Internal factoring out of libbpf CO-RE relocation logic, from Alexei.
3) Ambient BPF run context and cgroup storage cleanup, from Andrii.
4) Few small API additions for libbpf 1.0 effort, from Evgeniy and Hengqi.
5) bpf_program__attach_kprobe_opts() fixes in libbpf, from Jiri.
6) bpf_{get,set}sockopt() support in BPF iterators, from Martin.
7) BPF map pinning improvements in libbpf, from Martynas.
8) Improved module BTF support in libbpf and bpftool, from Quentin.
9) Bpftool cleanups and documentation improvements, from Quentin.
10) Libbpf improvements for supporting CO-RE on old kernels, from Shuyi.
11) Increased maximum cgroup storage size, from Stanislav.
12) Small fixes and improvements to BPF tests and samples, from various folks.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (64 commits)
tools: bpftool: Complete metrics list in "bpftool prog profile" doc
tools: bpftool: Document and add bash completion for -L, -B options
selftests/bpf: Update bpftool's consistency script for checking options
tools: bpftool: Update and synchronise option list in doc and help msg
tools: bpftool: Complete and synchronise attach or map types
selftests/bpf: Check consistency between bpftool source, doc, completion
tools: bpftool: Slightly ease bash completion updates
unix_bpf: Fix a potential deadlock in unix_dgram_bpf_recvmsg()
libbpf: Add btf__load_vmlinux_btf/btf__load_module_btf
tools: bpftool: Support dumping split BTF by id
libbpf: Add split BTF support for btf__load_from_kernel_by_id()
tools: Replace btf__get_from_id() with btf__load_from_kernel_by_id()
tools: Free BTF objects at various locations
libbpf: Rename btf__get_from_id() as btf__load_from_kernel_by_id()
libbpf: Rename btf__load() as btf__load_into_kernel()
libbpf: Return non-null error on failures in libbpf_find_prog_btf_id()
bpf: Emit better log message if bpf_iter ctx arg btf_id == 0
tools/resolve_btfids: Emit warnings and patch zero id for missing symbols
bpf: Increase supported cgroup storage value size
libbpf: Fix race when pinning maps in parallel
...
====================
Link: https://lore.kernel.org/r/20210730225606.1897330-1-andrii@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Update the script responsible for checking that the different types used
at various places in bpftool are synchronised, and extend it to check
the consistency of options between the help messages in the source code
and the manual pages.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210730215435.7095-6-quentin@isovalent.com
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Whenever the eBPF subsystem gains new elements, such as new program or
map types, it is necessary to update bpftool if we want it able to
handle the new items.
In addition to the main arrays containing the names of these elements in
the source code, there are also multiple locations to update:
- The help message in the do_help() functions in bpftool's source code.
- The RST documentation files.
- The bash completion file.
This has led to omissions multiple times in the past. This patch
attempts to address this issue by adding consistency checks for all
these different locations. It also verifies that the bpf_prog_type,
bpf_map_type and bpf_attach_type enums from the UAPI BPF header have all
their members present in bpftool.
The script requires no argument to run, it reads and parses the
different files to check, and prints the mismatches, if any. It
currently reports a number of missing elements, which will be fixed in a
later patch:
$ ./test_bpftool_synctypes.py
Comparing [...]/linux/tools/bpf/bpftool/map.c (map_type_name) and [...]/linux/tools/bpf/bpftool/bash-completion/bpftool (BPFTOOL_MAP_CREATE_TYPES): {'ringbuf'}
Comparing BPF header (enum bpf_attach_type) and [...]/linux/tools/bpf/bpftool/common.c (attach_type_name): {'BPF_TRACE_ITER', 'BPF_XDP_DEVMAP', 'BPF_XDP', 'BPF_SK_REUSEPORT_SELECT', 'BPF_XDP_CPUMAP', 'BPF_SK_REUSEPORT_SELECT_OR_MIGRATE'}
Comparing [...]/linux/tools/bpf/bpftool/prog.c (attach_type_strings) and [...]/linux/tools/bpf/bpftool/prog.c (do_help() ATTACH_TYPE): {'skb_verdict'}
Comparing [...]/linux/tools/bpf/bpftool/prog.c (attach_type_strings) and [...]/linux/tools/bpf/bpftool/Documentation/bpftool-prog.rst (ATTACH_TYPE): {'skb_verdict'}
Comparing [...]/linux/tools/bpf/bpftool/prog.c (attach_type_strings) and [...]/linux/tools/bpf/bpftool/bash-completion/bpftool (BPFTOOL_PROG_ATTACH_TYPES): {'skb_verdict'}
Note that the script does NOT check for consistency between the list of
program types that bpftool claims it accepts and the actual list of
keywords that can be used. This is because bpftool does not "see" them,
they are ELF section names parsed by libbpf. It is not hard to parse the
section_defs[] array in libbpf, but some section names are associated
with program types that bpftool cannot load at the moment. For example,
some programs require a BTF target and an attach target that bpftool
cannot handle. The script may be extended to parse the array and check
only relevant values in the future.
The script is not added to the selftests' Makefile, because doing so
would require all patches with BPF UAPI change to also update bpftool.
Instead it is to be added to the CI.
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210730215435.7095-3-quentin@isovalent.com
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Replace the calls to function btf__get_from_id(), which we plan to
deprecate before the library reaches v1.0, with calls to
btf__load_from_kernel_by_id() in tools/ (bpftool, perf, selftests).
Update the surrounding code accordingly (instead of passing a pointer to
the btf struct, get it as a return value from the function).
Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20210729162028.29512-6-quentin@isovalent.com
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