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Follow-up BPF helper improvements #227

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Follow-up BPF helper improvements #227

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Pull request for series with
subject: Follow-up BPF helper improvements
version: 3
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=362419

kernel-patches-bot and others added 7 commits October 9, 2020 13:50
@kernel-patches-bot
adding ci files
7eb8b99
@borkmann @kernel-patches-bot
bpf: improve bpf_redirect_neigh helper description
db3df6c 
Follow-up to address David's feedback that we should better describe internals
of the bpf_redirect_neigh() helper.

Suggested-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: David Ahern <dsahern@gmail.com>
@borkmann @kernel-patches-bot
bpf: add redirect_peer helper
4021994 
Add an efficient ingress to ingress netns switch that can be used out of tc BPF
programs in order to redirect traffic from host ns ingress into a container
veth device ingress without having to go via CPU backlog queue [0]. For local
containers this can also be utilized and path via CPU backlog queue only needs
to be taken once, not twice. On a high level this borrows from ipvlan which does
similar switch in __netif_receive_skb_core() and then iterates via another_round.
This helps to reduce latency for mentioned use cases.

Pod to remote pod with redirect(), TCP_RR [1]:

  # percpu_netperf 10.217.1.33
          RT_LATENCY:         122.450         (per CPU:         122.666         122.401         122.333         122.401 )
        MEAN_LATENCY:         121.210         (per CPU:         121.100         121.260         121.320         121.160 )
      STDDEV_LATENCY:         120.040         (per CPU:         119.420         119.910         125.460         115.370 )
         MIN_LATENCY:          46.500         (per CPU:          47.000          47.000          47.000          45.000 )
         P50_LATENCY:         118.500         (per CPU:         118.000         119.000         118.000         119.000 )
         P90_LATENCY:         127.500         (per CPU:         127.000         128.000         127.000         128.000 )
         P99_LATENCY:         130.750         (per CPU:         131.000         131.000         129.000         132.000 )

    TRANSACTION_RATE:       32666.400         (per CPU:        8152.200        8169.842        8174.439        8169.897 )

Pod to remote pod with redirect_peer(), TCP_RR:

  # percpu_netperf 10.217.1.33
          RT_LATENCY:          44.449         (per CPU:          43.767          43.127          45.279          45.622 )
        MEAN_LATENCY:          45.065         (per CPU:          44.030          45.530          45.190          45.510 )
      STDDEV_LATENCY:          84.823         (per CPU:          66.770          97.290          84.380          90.850 )
         MIN_LATENCY:          33.500         (per CPU:          33.000          33.000          34.000          34.000 )
         P50_LATENCY:          43.250         (per CPU:          43.000          43.000          43.000          44.000 )
         P90_LATENCY:          46.750         (per CPU:          46.000          47.000          47.000          47.000 )
         P99_LATENCY:          52.750         (per CPU:          51.000          54.000          53.000          53.000 )

    TRANSACTION_RATE:       90039.500         (per CPU:       22848.186       23187.089       22085.077       21919.130 )

  [0] https://linuxplumbersconf.org/event/7/contributions/674/attachments/568/1002/plumbers_2020_cilium_load_balancer.pdf
  [1] https://github.com/borkmann/netperf_scripts/blob/master/percpu_netperf

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
@borkmann @kernel-patches-bot
bpf: allow for map-in-map with dynamic inner array map entries
106f131 
Recent work in f4d0525 ("bpf: Add map_meta_equal map ops") and 134fede
("bpf: Relax max_entries check for most of the inner map types") added support
for dynamic inner max elements for most map-in-map types. Exceptions were maps
like array or prog array where the map_gen_lookup() callback uses the maps'
max_entries field as a constant when emitting instructions.

We recently implemented Maglev consistent hashing into Cilium's load balancer
which uses map-in-map with an outer map being hash and inner being array holding
the Maglev backend table for each service. This has been designed this way in
order to reduce overall memory consumption given the outer hash map allows to
avoid preallocating a large, flat memory area for all services. Also, the
number of service mappings is not always known a-priori.

The use case for dynamic inner array map entries is to further reduce memory
overhead, for example, some services might just have a small number of back
ends while others could have a large number. Right now the Maglev backend table
for small and large number of backends would need to have the same inner array
map entries which adds a lot of unneeded overhead.

Dynamic inner array map entries can be realized by avoiding the inlined code
generation for their lookup. The lookup will still be efficient since it will
be calling into array_map_lookup_elem() directly and thus avoiding retpoline.
The patch adds a BPF_F_NO_INLINE flag to map creation which therefore skips
inline code generation and relaxes array_map_meta_equal() check to ignore both
maps' max_entries.

Example code generation where inner map is dynamic sized array:

  # bpftool p d x i 125
  int handle__sys_enter(void * ctx):
  ; int handle__sys_enter(void *ctx)
     0: (b4) w1 = 0
  ; int key = 0;
     1: (63) *(u32 *)(r10 -4) = r1
     2: (bf) r2 = r10
  ;
     3: (07) r2 += -4
  ; inner_map = bpf_map_lookup_elem(&outer_arr_dyn, &key);
     4: (18) r1 = map[id:468]
     6: (07) r1 += 272
     7: (61) r0 = *(u32 *)(r2 +0)
     8: (35) if r0 >= 0x3 goto pc+5
     9: (67) r0 <<= 3
    10: (0f) r0 += r1
    11: (79) r0 = *(u64 *)(r0 +0)
    12: (15) if r0 == 0x0 goto pc+1
    13: (05) goto pc+1
    14: (b7) r0 = 0
    15: (b4) w6 = -1
  ; if (!inner_map)
    16: (15) if r0 == 0x0 goto pc+6
    17: (bf) r2 = r10
  ;
    18: (07) r2 += -4
  ; val = bpf_map_lookup_elem(inner_map, &key);
    19: (bf) r1 = r0                               | No inlining but instead
    20: (85) call array_map_lookup_elem#149280     | call to array_map_lookup_elem()
  ; return val ? *val : -1;                        | for inner array lookup.
    21: (15) if r0 == 0x0 goto pc+1
  ; return val ? *val : -1;
    22: (61) r6 = *(u32 *)(r0 +0)
  ; }
    23: (bc) w0 = w6
    24: (95) exit

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
@borkmann @kernel-patches-bot
bpf, selftests: add test for different array inner map size
4d4b76e 
Extend the "diff_size" subtest to also include a non-inlined array map variant
where dynamic inner #elems are possible.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
@borkmann @kernel-patches-bot
bpf, selftests: make redirect_neigh test more extensible
ba7dc8b 
Rename into test_tc_redirect.sh and move setup and test code into separate
functions so they can be reused for newly added tests in here. Also remove
the crude hack to override ifindex inside the object file via xxd and sed
and just use a simple map instead. Map given iproute2 does not support BTF
fully and therefore neither global data at this point.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
@borkmann @kernel-patches-bot
bpf, selftests: add redirect_peer selftest
a41f39e 
Extend the test_tc_redirect test and add a small test that exercises the new
redirect_peer() helper for the IPv4 and IPv6 case.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
@kernel-patches-bot
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Master branch: ac53a0d
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=362419
version: 3

@kernel-patches-bot
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=362419 irrelevant now. Closing PR.

kernel-patches-bot pushed a commit that referenced this pull request Apr 8, 2021
@jmberg-intel
mac80211: clear sta->fast_rx when STA removed from 4-addr VLAN
dd0b455 
In some race conditions, with more clients and traffic configuration,
below crash is seen when making the interface down. sta->fast_rx wasn't
cleared when STA gets removed from 4-addr AP_VLAN interface. The crash is
due to try accessing 4-addr AP_VLAN interface's net_device (fast_rx->dev)
which has been deleted already.

Resolve this by clearing sta->fast_rx pointer when STA removes
from a 4-addr VLAN.

[  239.449529] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[  239.449531] pgd = 80204000
...
[  239.481496] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.4.60 #227
[  239.481591] Hardware name: Generic DT based system
[  239.487665] task: be05b700 ti: be08e000 task.ti: be08e000
[  239.492360] PC is at get_rps_cpu+0x2d4/0x31c
[  239.497823] LR is at 0xbe08fc54
...
[  239.778574] [<80739740>] (get_rps_cpu) from [<8073cb10>] (netif_receive_skb_internal+0x8c/0xac)
[  239.786722] [<8073cb10>] (netif_receive_skb_internal) from [<8073d578>] (napi_gro_receive+0x48/0xc4)
[  239.795267] [<8073d578>] (napi_gro_receive) from [<c7b83e8c>] (ieee80211_mark_rx_ba_filtered_frames+0xbcc/0x12d4 [mac80211])
[  239.804776] [<c7b83e8c>] (ieee80211_mark_rx_ba_filtered_frames [mac80211]) from [<c7b84d4c>] (ieee80211_rx_napi+0x7b8/0x8c8 [mac8
            0211])
[  239.815857] [<c7b84d4c>] (ieee80211_rx_napi [mac80211]) from [<c7f63d7c>] (ath11k_dp_process_rx+0x7bc/0x8c8 [ath11k])
[  239.827757] [<c7f63d7c>] (ath11k_dp_process_rx [ath11k]) from [<c7f5b6c4>] (ath11k_dp_service_srng+0x2c0/0x2e0 [ath11k])
[  239.838484] [<c7f5b6c4>] (ath11k_dp_service_srng [ath11k]) from [<7f55b7dc>] (ath11k_ahb_ext_grp_napi_poll+0x20/0x84 [ath11k_ahb]
            )
[  239.849419] [<7f55b7dc>] (ath11k_ahb_ext_grp_napi_poll [ath11k_ahb]) from [<8073ce1c>] (net_rx_action+0xe0/0x28c)
[  239.860945] [<8073ce1c>] (net_rx_action) from [<80324868>] (__do_softirq+0xe4/0x228)
[  239.871269] [<80324868>] (__do_softirq) from [<80324c48>] (irq_exit+0x98/0x108)
[  239.879080] [<80324c48>] (irq_exit) from [<8035c59c>] (__handle_domain_irq+0x90/0xb4)
[  239.886114] [<8035c59c>] (__handle_domain_irq) from [<8030137c>] (gic_handle_irq+0x50/0x94)
[  239.894100] [<8030137c>] (gic_handle_irq) from [<803024c0>] (__irq_svc+0x40/0x74)

Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org>
Link: https://lore.kernel.org/r/1616163532-3881-1-git-send-email-seevalam@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
borkmann added a commit to cilium/kernel-bpf-ci that referenced this pull request Jun 7, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
9804648 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  kernel-patches#224     tc_links_after:OK
  kernel-patches#225     tc_links_append:OK
  kernel-patches#226     tc_links_basic:OK
  kernel-patches#227     tc_links_before:OK
  kernel-patches#228     tc_links_both:OK
  kernel-patches#229     tc_links_chain_classic:OK
  kernel-patches#230     tc_links_dev_cleanup:OK
  kernel-patches#231     tc_links_first:OK
  kernel-patches#232     tc_links_invalid:OK
  kernel-patches#233     tc_links_last:OK
  kernel-patches#234     tc_links_prepend:OK
  kernel-patches#235     tc_links_replace:OK
  kernel-patches#236     tc_links_revision:OK
  Summary: 13/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jun 7, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
04f617c 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #224     tc_links_after:OK
  #225     tc_links_append:OK
  #226     tc_links_basic:OK
  #227     tc_links_before:OK
  #228     tc_links_both:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_first:OK
  #232     tc_links_invalid:OK
  #233     tc_links_last:OK
  #234     tc_links_prepend:OK
  #235     tc_links_replace:OK
  #236     tc_links_revision:OK
  Summary: 13/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
yurinnick pushed a commit to yurinnick/kernel-patches-bpf that referenced this pull request Jun 7, 2023
@borkmann @yurinnick
selftests/bpf: Add mprog API tests for BPF tcx links
776aba0 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  kernel-patches#224     tc_links_after:OK
  kernel-patches#225     tc_links_append:OK
  kernel-patches#226     tc_links_basic:OK
  kernel-patches#227     tc_links_before:OK
  kernel-patches#228     tc_links_both:OK
  kernel-patches#229     tc_links_chain_classic:OK
  kernel-patches#230     tc_links_dev_cleanup:OK
  kernel-patches#231     tc_links_first:OK
  kernel-patches#232     tc_links_invalid:OK
  kernel-patches#233     tc_links_last:OK
  kernel-patches#234     tc_links_prepend:OK
  kernel-patches#235     tc_links_replace:OK
  kernel-patches#236     tc_links_revision:OK
  Summary: 13/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jun 8, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
29a876c 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #224     tc_links_after:OK
  #225     tc_links_append:OK
  #226     tc_links_basic:OK
  #227     tc_links_before:OK
  #228     tc_links_both:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_first:OK
  #232     tc_links_invalid:OK
  #233     tc_links_last:OK
  #234     tc_links_prepend:OK
  #235     tc_links_replace:OK
  #236     tc_links_revision:OK
  Summary: 13/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
yurinnick pushed a commit to yurinnick/kernel-patches-bpf that referenced this pull request Jun 8, 2023
@borkmann @yurinnick
selftests/bpf: Add mprog API tests for BPF tcx links
af398f3 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  kernel-patches#224     tc_links_after:OK
  kernel-patches#225     tc_links_append:OK
  kernel-patches#226     tc_links_basic:OK
  kernel-patches#227     tc_links_before:OK
  kernel-patches#228     tc_links_both:OK
  kernel-patches#229     tc_links_chain_classic:OK
  kernel-patches#230     tc_links_dev_cleanup:OK
  kernel-patches#231     tc_links_first:OK
  kernel-patches#232     tc_links_invalid:OK
  kernel-patches#233     tc_links_last:OK
  kernel-patches#234     tc_links_prepend:OK
  kernel-patches#235     tc_links_replace:OK
  kernel-patches#236     tc_links_revision:OK
  Summary: 13/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 7, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
bd99ed4 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 7, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
ae278b1 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 9, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
d6c111b 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 10, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
ba85a82 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 10, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
2d1e862 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 11, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
b49c204 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 14, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
c544a71 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 17, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
f0fbe59 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
d9cc3c5 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
3858131 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
9bb90a0 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
52fba39 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
b0af100 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
6d8cd55 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
kernel-patches-daemon-bpf bot pushed a commit that referenced this pull request Jul 19, 2023
@borkmann
selftests/bpf: Add mprog API tests for BPF tcx links
c6d479b 
Add a big batch of test coverage to assert all aspects of the tcx link API:

  # ./vmtest.sh -- ./test_progs -t tc_links
  [...]
  #225     tc_links_after:OK
  #226     tc_links_append:OK
  #227     tc_links_basic:OK
  #228     tc_links_before:OK
  #229     tc_links_chain_classic:OK
  #230     tc_links_dev_cleanup:OK
  #231     tc_links_invalid:OK
  #232     tc_links_prepend:OK
  #233     tc_links_replace:OK
  #234     tc_links_revision:OK
  Summary: 10/0 PASSED, 0 SKIPPED, 0 FAILED

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20230719140858.13224-9-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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@kernel-patches-bot @borkmann