netdev - Re: [PATCH 00/14] Modify action API for implementing lockless actions

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Date:   Wed, 16 May 2018 13:36:36 -0400
From:   Roman Mashak <mrv@...atatu.com>
To:     Vlad Buslov <vladbu@...lanox.com>
Cc:     Jamal Hadi Salim <jhs@...atatu.com>,
        Linux Kernel Network Developers <netdev@...r.kernel.org>,
        David Miller <davem@...emloft.net>,
        Cong Wang <xiyou.wangcong@...il.com>,
        Jiri Pirko <jiri@...nulli.us>, pablo@...filter.org,
        kadlec@...ckhole.kfki.hu, fw@...len.de, ast@...nel.org,
        Daniel Borkmann <daniel@...earbox.net>,
        Eric Dumazet <edumazet@...gle.com>, kliteyn@...lanox.com
Subject: Re: [PATCH 00/14] Modify action API for implementing lockless actions

Vlad Buslov <vladbu@...lanox.com> writes:

> On Wed 16 May 2018 at 14:38, Roman Mashak <mrv@...atatu.com> wrote:
>> On Wed, May 16, 2018 at 2:43 AM, Vlad Buslov <vladbu@...lanox.com> wrote:
>>>>>>> I'm trying to run tdc, but keep getting following error even on clean
>>>>>>> branch without my patches:
>>>>>>
>>>>>> Vlad, not sure if you saw my email:
>>>>>> Apply Roman's patch and try again
>>>>>>
>>>>>> https://marc.info/?l=linux-netdev&m=152639369112020&w=2
>>>>>>
>>>>>> cheers,
>>>>>> jamal
>>>>>
>>>>> With patch applied I get following error:
>>>>>
>>>>> Test 7d50: Add skbmod action to set destination mac
>>>>> exit: 255 0
>>>>> dst MAC address <11:22:33:44:55:66>
>>>>> RTNETLINK answers: No such file or directory
>>>>> We have an error talking to the kernel
>>>>>
>>>>
>>>> You may actually have broken something with your patches in this case.
>>>
>>> Results is for net-next without my patches.
>>
>> Do you have skbmod compiled in kernel or as a module?
>
> Thanks, already figured out that default config has some actions
> disabled.
> Have more errors now. Everything related to ife:
>
> Test 7682: Create valid ife encode action with mark and pass control
> exit: 255 0
> IFE type 0xED3E
> RTNETLINK answers: No such file or directory
> We have an error talking to the kernel
>
> Test ef47: Create valid ife encode action with mark and pipe control
> exit: 255 0
> IFE type 0xED3E
> RTNETLINK answers: No space left on device
> We have an error talking to the kernel
>
> Test df43: Create valid ife encode action with mark and continue control
> exit: 255 0
> IFE type 0xED3E
> RTNETLINK answers: No space left on device
> We have an error talking to the kernel
>
> Test e4cf: Create valid ife encode action with mark and drop control
> exit: 255 0
> IFE type 0xED3E
> RTNETLINK answers: No space left on device
> We have an error talking to the kernel
>
> Test ccba: Create valid ife encode action with mark and reclassify control
> exit: 255 0
> IFE type 0xED3E
> RTNETLINK answers: No space left on device
> We have an error talking to the kernel
>
> Test a1cf: Create valid ife encode action with mark and jump control
> exit: 255 0
> IFE type 0xED3E
> RTNETLINK answers: No space left on device
> We have an error talking to the kernel
>
> ...
>
>

Please make sure you have these in your kernel config:

CONFIG_NET_ACT_IFE=y
CONFIG_NET_IFE_SKBMARK=m
CONFIG_NET_IFE_SKBPRIO=m
CONFIG_NET_IFE_SKBTCINDEX=m

For tdc to run all the tests, it is assumed that all the supported tc
actions/filters are enabled and compiled.