Message-ID: <f0fa2b91-cebf-0997-1074-d1ba35bf77a9@mojatatu.com>
Date:   Fri, 16 Sep 2022 13:56:05 -0300
From:   Victor Nogueira <victor@...atatu.com>
To:     Zhengchao Shao <shaozhengchao@...wei.com>, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kselftest@...r.kernel.org,
        jhs@...atatu.com, xiyou.wangcong@...il.com, jiri@...nulli.us,
        davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
        pabeni@...hat.com, shuah@...nel.org
Cc:     ast@...nel.org, daniel@...earbox.net, andrii@...nel.org,
        martin.lau@...ux.dev, song@...nel.org, yhs@...com,
        john.fastabend@...il.com, kpsingh@...nel.org, sdf@...gle.com,
        haoluo@...gle.com, jolsa@...nel.org, weiyongjun1@...wei.com,
        yuehaibing@...wei.com
Subject: Re: [PATCH net-next,v4 0/9] refactor duplicate codes in the tc cls
 walk function


On 15/09/2022 23:02, Zhengchao Shao wrote:
> The walk implementation of most tc cls modules is basically the same.
> That is, the values of count and skip are checked first. If count is
> greater than or equal to skip, the registered fn function is executed.
> Otherwise, increase the value of count. So the code can be refactored.
> Then use helper function to replace the code of each cls module in
> alphabetical order.
>
> The walk function is invoked during dump. Therefore, test cases related
>   to the tdc filter need to be added.
>
> Last, thanks to Jamal, Victor and Wang for their review.
>
> Add test cases locally and perform the test. The test results are listed
> below:
>
> ./tdc.py -e 0811
> ok 1 0811 - Add multiple basic filter with cmp ematch u8/link layer and
> default action and dump them
>
> ./tdc.py -e 5129
> ok 1 5129 - List basic filters
>
> ./tdc.py -c bpf-filter
> ok 1 23c3 - Add cBPF filter with valid bytecode
> ok 2 1563 - Add cBPF filter with invalid bytecode
> ok 3 2334 - Add eBPF filter with valid object-file
> ok 4 2373 - Add eBPF filter with invalid object-file
> ok 5 4423 - Replace cBPF bytecode
> ok 6 5122 - Delete cBPF filter
> ok 7 e0a9 - List cBPF filters
>
> ./tdc.py -c cgroup
> ok 1 6273 - Add cgroup filter with cmp ematch u8/link layer and drop
> action
> ok 2 4721 - Add cgroup filter with cmp ematch u8/link layer with trans
> flag and pass action
> ok 3 d392 - Add cgroup filter with cmp ematch u16/link layer and pipe
> action
> ok 4 0234 - Add cgroup filter with cmp ematch u32/link layer and miltiple
> actions
> ok 5 8499 - Add cgroup filter with cmp ematch u8/network layer and pass
> action
> ok 6 b273 - Add cgroup filter with cmp ematch u8/network layer with trans
> flag and drop action
> ok 7 1934 - Add cgroup filter with cmp ematch u16/network layer and pipe
> action
> ok 8 2733 - Add cgroup filter with cmp ematch u32/network layer and
> miltiple actions
> ok 9 3271 - Add cgroup filter with NOT cmp ematch rule and pass action
> ok 10 2362 - Add cgroup filter with two ANDed cmp ematch rules and single
> action
> ok 11 9993 - Add cgroup filter with two ORed cmp ematch rules and single
> action
> ok 12 2331 - Add cgroup filter with two ANDed cmp ematch rules and one
> ORed ematch rule and single action
> ok 13 3645 - Add cgroup filter with two ANDed cmp ematch rules and one
> NOT ORed ematch rule and single action
> ok 14 b124 - Add cgroup filter with u32 ematch u8/zero offset and drop
> action
> ok 15 7381 - Add cgroup filter with u32 ematch u8/zero offset and invalid
> value >0xFF
> ok 16 2231 - Add cgroup filter with u32 ematch u8/positive offset and
> drop action
> ok 17 1882 - Add cgroup filter with u32 ematch u8/invalid mask >0xFF
> ok 18 1237 - Add cgroup filter with u32 ematch u8/missing offset
> ok 19 3812 - Add cgroup filter with u32 ematch u8/missing AT keyword
> ok 20 1112 - Add cgroup filter with u32 ematch u8/missing value
> ok 21 3241 - Add cgroup filter with u32 ematch u8/non-numeric value
> ok 22 e231 - Add cgroup filter with u32 ematch u8/non-numeric mask
> ok 23 4652 - Add cgroup filter with u32 ematch u8/negative offset and
> pass action
> ok 24 1331 - Add cgroup filter with u32 ematch u16/zero offset and pipe
> action
> ok 25 e354 - Add cgroup filter with u32 ematch u16/zero offset and
> invalid value >0xFFFF
> ok 26 3538 - Add cgroup filter with u32 ematch u16/positive offset and
> drop action
> ok 27 4576 - Add cgroup filter with u32 ematch u16/invalid mask >0xFFFF
> ok 28 b842 - Add cgroup filter with u32 ematch u16/missing offset
> ok 29 c924 - Add cgroup filter with u32 ematch u16/missing AT keyword
> ok 30 cc93 - Add cgroup filter with u32 ematch u16/missing value
> ok 31 123c - Add cgroup filter with u32 ematch u16/non-numeric value
> ok 32 3675 - Add cgroup filter with u32 ematch u16/non-numeric mask
> ok 33 1123 - Add cgroup filter with u32 ematch u16/negative offset and
> drop action
> ok 34 4234 - Add cgroup filter with u32 ematch u16/nexthdr+ offset and
> pass action
> ok 35 e912 - Add cgroup filter with u32 ematch u32/zero offset and pipe
> action
> ok 36 1435 - Add cgroup filter with u32 ematch u32/positive offset and
> drop action
> ok 37 1282 - Add cgroup filter with u32 ematch u32/missing offset
> ok 38 6456 - Add cgroup filter with u32 ematch u32/missing AT keyword
> ok 39 4231 - Add cgroup filter with u32 ematch u32/missing value
> ok 40 2131 - Add cgroup filter with u32 ematch u32/non-numeric value
> ok 41 f125 - Add cgroup filter with u32 ematch u32/non-numeric mask
> ok 42 4316 - Add cgroup filter with u32 ematch u32/negative offset and
> drop action
> ok 43 23ae - Add cgroup filter with u32 ematch u32/nexthdr+ offset and
> pipe action
> ok 44 23a1 - Add cgroup filter with canid ematch and single SFF
> ok 45 324f - Add cgroup filter with canid ematch and single SFF with mask
> ok 46 2576 - Add cgroup filter with canid ematch and multiple SFF
> ok 47 4839 - Add cgroup filter with canid ematch and multiple SFF with
> masks
> ok 48 6713 - Add cgroup filter with canid ematch and single EFF
> ok 49 4572 - Add cgroup filter with canid ematch and single EFF with mask
> ok 50 8031 - Add cgroup filter with canid ematch and multiple EFF
> ok 51 ab9d - Add cgroup filter with canid ematch and multiple EFF with
> masks
> ok 52 5349 - Add cgroup filter with canid ematch and a combination of
> SFF/EFF
> ok 53 c934 - Add cgroup filter with canid ematch and a combination of
> SFF/EFF with masks
> ok 54 4319 - Replace cgroup filter with diffferent match
> ok 55 4636 - Detele cgroup filter
>
> ./tdc.py -c flow
> ok 1 5294 - Add flow filter with map key and ops
> ok 2 3514 - Add flow filter with map key or ops
> ok 3 7534 - Add flow filter with map key xor ops
> ok 4 4524 - Add flow filter with map key rshift ops
> ok 5 0230 - Add flow filter with map key addend ops
> ok 6 2344 - Add flow filter with src map key
> ok 7 9304 - Add flow filter with proto map key
> ok 8 9038 - Add flow filter with proto-src map key
> ok 9 2a03 - Add flow filter with proto-dst map key
> ok 10 a073 - Add flow filter with iif map key
> ok 11 3b20 - Add flow filter with priority map key
> ok 12 8945 - Add flow filter with mark map key
> ok 13 c034 - Add flow filter with nfct map key
> ok 14 0205 - Add flow filter with nfct-src map key
> ok 15 5315 - Add flow filter with nfct-src map key
> ok 16 7849 - Add flow filter with nfct-proto-src map key
> ok 17 9902 - Add flow filter with nfct-proto-dst map key
> ok 18 6742 - Add flow filter with rt-classid map key
> ok 19 5432 - Add flow filter with sk-uid map key
> ok 20 4234 - Add flow filter with sk-gid map key
> ok 21 4522 - Add flow filter with vlan-tag map key
> ok 22 4253 - Add flow filter with rxhash map key
> ok 23 4452 - Add flow filter with hash key list
> ok 24 4341 - Add flow filter with muliple ops
> ok 25 4392 - List flow filters
> ok 26 4322 - Change flow filter with map key num
> ok 27 2320 - Replace flow filter with map key num
> ok 28 3213 - Delete flow filter with map key num
>
> ./tdc.py -c route
> ok 1 e122 - Add route filter with from and to tag
> ok 2 6573 - Add route filter with fromif and to tag
> ok 3 1362 - Add route filter with to flag and reclassify action
> ok 4 4720 - Add route filter with from flag and continue actions
> ok 5 2812 - Add route filter with form tag and pipe action
> ok 6 7994 - Add route filter with miltiple actions
> ok 7 4312 - List route filters
> ok 8 2634 - Delete route filter with pipe action
>
> ./tdc.py -c rsvp
> ok 1 2141 - Add rsvp filter with tcp proto and specific IP address
> ok 2 5267 - Add rsvp filter with udp proto and specific IP address
> ok 3 2819 - Add rsvp filter with src ip and src port
> ok 4 c967 - Add rsvp filter with tunnelid and continue action
> ok 5 5463 - Add rsvp filter with tunnel and pipe action
> ok 6 2332 - Add rsvp filter with miltiple actions
> ok 7 8879 - Add rsvp filter with tunnel and skp flag
> ok 8 8261 - List rsvp filters
> ok 9 8989 - Delete rsvp filter
>
> ./tdc.py -c tcindex
> ok 1 8293 - Add tcindex filter with default action
> ok 2 7281 - Add tcindex filter with hash size and pass action
> ok 3 b294 - Add tcindex filter with mask shift and reclassify action
> ok 4 0532 - Add tcindex filter with pass_on and continue actions
> ok 5 d473 - Add tcindex filter with pipe action
> ok 6 2940 - Add tcindex filter with miltiple actions
> ok 7 1893 - List tcindex filters
> ok 8 2041 - Change tcindex filter with pass action
> ok 9 9203 - Replace tcindex filter with pass action
> ok 10 7957 - Delete tcindex filter with drop action
>
> ---
> v4: rename tc_cls_stats_update to tc_cls_stats_dump and modify the
>      test case format alignment
> v3: modify the test case format alignment
> v2: rectify spelling error; The category name bpf in filters file
>      is renamed to bpf-filter
> ---
>
> Zhengchao Shao (9):
>    net/sched: cls_api: add helper for tc cls walker stats dump
>    net/sched: use tc_cls_stats_dump() in filter
>    selftests/tc-testings: add selftests for bpf filter
>    selftests/tc-testings: add selftests for cgroup filter
>    selftests/tc-testings: add selftests for flow filter
>    selftests/tc-testings: add selftests for route filter
>    selftests/tc-testings: add selftests for rsvp filter
>    selftests/tc-testings: add selftests for tcindex filter
>    selftests/tc-testings: add list case for basic filter
>
>   include/net/pkt_cls.h                         |   13 +
>   net/sched/cls_basic.c                         |    9 +-
>   net/sched/cls_bpf.c                           |    8 +-
>   net/sched/cls_flow.c                          |    8 +-
>   net/sched/cls_fw.c                            |    9 +-
>   net/sched/cls_route.c                         |    9 +-
>   net/sched/cls_rsvp.h                          |    9 +-
>   net/sched/cls_tcindex.c                       |   18 +-
>   net/sched/cls_u32.c                           |   20 +-
>   .../tc-testing/tc-tests/filters/basic.json    |   47 +
>   .../tc-testing/tc-tests/filters/bpf.json      |  171 +++
>   .../tc-testing/tc-tests/filters/cgroup.json   | 1236 +++++++++++++++++
>   .../tc-testing/tc-tests/filters/flow.json     |  623 +++++++++
>   .../tc-testing/tc-tests/filters/route.json    |  181 +++
>   .../tc-testing/tc-tests/filters/rsvp.json     |  203 +++
>   .../tc-testing/tc-tests/filters/tcindex.json  |  227 +++
>   16 files changed, 2716 insertions(+), 75 deletions(-)
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/filters/bpf.json
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/filters/cgroup.json
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/filters/flow.json
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/filters/route.json
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/filters/rsvp.json
>   create mode 100644 tools/testing/selftests/tc-testing/tc-tests/filters/tcindex.json


Reviewed-by: Victor Nogueira <victor@...atatu.com>
Tested-by: Victor Nogueira <victor@...atatu.com>

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