[ovs-dev] [Suspected-Phishing]Re: [PATCH v2 1/3] netdev: Dynamic per-port Flow API.

Roi Dayan roid at mellanox.com
Tue Jul 2 11:23:47 UTC 2019

On 2019-07-01 1:53 PM, Eli Britstein wrote:
> On 7/1/2019 1:46 PM, Ilya Maximets wrote:
>> On 01.07.2019 13:24, Eli Britstein wrote:
>>> On 7/1/2019 1:13 PM, Ilya Maximets wrote:
>>>> On 30.06.2019 7:47, Eli Britstein wrote:
>>>>> This patch breaks ovs-dpctl dump-flows, when using TC offloads (kernel).
>>>>> I added a print in netdev_flow_dump_create, and flow_api is NULL when
>>>>> invoking ovs-dpctl dump-flows.
>>>>> I think new netdev objects are created to the ports (netdev_open), but
>>>>> not properly initialized.
>>>>> Could you please have a look?
>>>> Hi. This is a known thing that ovs-dpctl is no longer suitable for dumping
>>>> of HW offloaded flows. Please, use 'ovs-appctl dpctl/dump-flows' instead.
>>>> There was a patch for documentation in v4 of patch-set:
>>>>       https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail.openvswitch.org%2Fpipermail%2Fovs-dev%2F2019-May%2F359013.html&data=02%7C01%7Croid%40mellanox.com%7C87911589131b4a2272e408d6fe126b00%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636975752392668133&sdata=Ix865YKHk%2F2DhsB%2BvKVzw9ncYo413WtBtfdggXrMn7M%3D&reserved=0
>>>> Here is the relevant thread:
>>>>       https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmail.openvswitch.org%2Fpipermail%2Fovs-dev%2F2019-May%2F358985.html&data=02%7C01%7Croid%40mellanox.com%7C87911589131b4a2272e408d6fe126b00%7Ca652971c7d2e4d9ba6a4d149256f461b%7C0%7C0%7C636975752392678131&sdata=Ckv4uo%2B9jYxUcjM%2BPbr6aGWutyh1NYGn2y9FhL3aC3M%3D&reserved=0
>>>> However, I missed updating the NEWS about that change. Will send the patch
>>>> for this soon.
>>>> Best regards, Ilya Maximets.
>>> If that so, don't you think this should be either fixed or deprecated?
>> Fixing seems not possible, because ovs-dpctl is a standalone application
>> that works only with default configuration and HW offloading is disabled
>> by default.
>> Regarding deprecation, I'd like to remove all the functionality from ovs-dpctl
>> utility keeping only ability to remove system datapaths, since this, IMHO,
>> is the only useful function.
>>> Imagine some flows are in TC and some in OVS. I guess dpctl will only
>>> show the OVS ones.
>> Yes, and this is documented.
> I missed the documentation but bisected to find the offending commit. I 
> think it's better to deprecate as you suggested above, maybe with some 
> message to refer users to the documentation.

was added when u try to use the type arg.

# ovs-dpctl dump-flows type=tc
ovs-dpctl: Invalid argument 'type'. Use 'ovs-appctl dpctl/dump-flows' instead.

just output the msg all the time would have been annoying.

>>> I know about that appctl, but at least currently it misses some
>>> information in the dump like "dp" and "offloaded".
>> appctl and dpctl works through the same code in lib/dpctl.c. So, everything
>> is supported. If you don't see those fields, increase the verbosity with
>> '--more' argument.
> Right. Sorry.
>> Best regards, Ilya Maximets.
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