[PATCH] app/testpmd:add vxlan txonly

[Ferruh Yigit]

On 2/18/2023 11:47 PM, Ferruh Yigit wrote:
> On 2/18/2023 11:06 AM, wushaohua wrote:
>>
>> 在 2023/2/18 4:43, Ferruh Yigit 写道:
>>> On 1/3/2023 2:30 AM, wushaohua at chinatelecom.cn wrote:
>>>> From: Shaohua Wu <wushaohua at chinatelecom.cn>
>>>>
>>>> Add the vxlan packet sending module to actively send
>>>> vxlan packets using a common network adapter.
>>>> The default vni is 1000.
>>>> example:
>>>>  ./dpdk-testpmd -l 32-47 -n 16 --file-prefix pg0 -- -i
>>>> 	--rxq=16 --txq=16 --rxd=1024 --txd=1024
>>>> 	--txpkts=64 --burst=64  --mbuf-size=4096
>>>> 	--nb-cores=15  --underlay_tx_only
>>>> 	--underlay-eth-peer=0,f0:00:00:00:00:66
>>>> 	--eth-peer=0,08:c0:eb:3e:87:af
>>>> 	--utx-ip=11.0.0.1,11.0.0.2
>>>> 	--tx-ip=30.0.0.1,30.0.0.2
>>>> 	--forward-mode=tuntxonly
>>>> 	--txonly-multi-flow
>>>>
>>>> Signed-off-by: Shaohua Wu <wushaohua at chinatelecom.cn>
>>> Hi Shaohua,
>>>
>>> This is a good feature but I am not sure if this is in the scope of
>>> testpmd application.
>>>
>>> Testpmd has basic packet generation capabilities, and it is useful for
>>> quick/dirty testing, but for more advanced packet generation perhaps
>>> other tools like pktgen [1] can be used, what do you think?
>>>
>>> What is the justification to have this feature in testpmd, and what is
>>> your usecase?
>>>
>>>
>>> [1]
>>> https://git.dpdk.org/apps/pktgen-dpdk/
>>
>> Hi Ferruh，
>>
>> Thank you for your review.From what I know now pktgen doesn't seem to support the construction of vxlan packets.
>>
> 
> I was asking if it makes sense to add this support to pktgen, instead of
> testpmd.
> 

I would be great to get some feedback from techboard.

>> In a real test scenario, testpmd only sends bare packets and cannot cover test scenarios, such as ovs decap performance.
>> Currently, testpmd of this patch is used, and the packet sending performance is 22+Mpps with a 25G network adapter.
>>
>> This is necessary for testing DPU devices or virtualization scenarios.
>>
>