Re: [dpdk-dev] [PATCH v8] app/testpmd: support multi-process

["Min Hu (Connor)" <humin29@huawei.com>]

Hi, Ferry and all,
	This patch has been acked:
	Acked-by: Xiaoyun Li <xiaoyun.li@intel.com>
	Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
	
	Are there any other comments about that patch?


在 2021/3/30 18:43, Min Hu (Connor) 写道:
> 
> 
> 在 2021/3/30 18:19, Ferruh Yigit 写道:
>> On 3/30/2021 7:41 AM, Min Hu (Connor) wrote:
>>>
>>>
>>> 在 2021/3/30 11:11, Ajit Khaparde 写道:
>>>> On Mon, Mar 29, 2021 at 6:48 PM Min Hu (Connor) <humin29@huawei.com> 
>>>> wrote:
>>>>>
>>>>> From: Lijun Ou <oulijun@huawei.com>
>>>>>
>>>>> This patch adds multi-process support for testpmd.
>>>>> The test cmd example as follows:
>>>>> the primary cmd:
>>>>> ./dpdk-testpmd -a xxx --proc-type=auto -l 0-1 -- -i \
>>>>> --rxq=4 --txq=4 --num-procs=2 --proc-id=0
>>>>>
>>>>> the secondary cmd:
>>>>> ./dpdk-testpmd -a xxx --proc-type=auto -l 2-3 -- -i \
>>>>> --rxq=4 --txq=4 --num-procs=2 --proc-id=1
>>>>>
>>>>> Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
>>>>> Signed-off-by: Lijun Ou <oulijun@huawei.com>
>>>> Some minor nits below. Otherwise looks fine to me.
>>>> Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
>>>>
>>> Thanks Ajit.
>>>
>>> Hi, Ferruh,
>>>      Should I send v9 to fix the grammar bugs in doc which Ajit point
>>> out or fix it in future?
>>>
>>
>> Hi Connor, if they are only outstanding issues, I can fix them while 
>> merging.
>>
> Thanks Ferruh.
>>>>> ---
>>>>> v8:
>>>>> * Added warning info about queue numbers and process numbers.
>>>>>
>>>> :::snip::::
>>>>
>>>>> +*   ``--rxq=N``
>>>>> +
>>>>> +    Set the number of Rx queues per port to N. N is the sum of 
>>>>> queues used by primary
>>>>> +    and secondary process. Primary process and secondary process 
>>>>> should have separate
>>>>> +    queues, and each should occupy at least one queue. Where N 
>>>>> should be the multiple
>>>>> +    of number of processes.
>>>> of the number of processes.
>>>>
>>>>> +
>>>>> +*   ``--txq=N``
>>>>> +
>>>>> +    Set the number of Tx queues per port to N. N is the sum of 
>>>>> queues used by primary
>>>>> +    and secondary process. Primary process and secondary process 
>>>>> should have separate
>>>>> +    queues, and each should occupy at least one queue. Where N 
>>>>> should be the multiple
>>>>> +    of number of processes.
>>>> of the number of processes.
>>>>
>>>>> +
>>>>> +*   ``--num-procs=N``
>>>>> +
>>>>> +    The number of processes which will be used.
>>>>> +
>>>> :::: snip ::::
>>>>> +The number of rings should be a multiple of the number of 
>>>>> processes. If not,
>>>>> +redundant queues will exist after queues are allocated to 
>>>>> processes. After RSS is
>>>>> +enabled, packet loss occurs when traffic is sent to all processes 
>>>>> at the same time.
>>>>> +Some traffic enters redundant queues and cannot be forwarded.
>>>>> +
>>>>> +Most dev ops is supported in primary and secondary process. While 
>>>>> secondary process
>>>> Most dev ops are supported in the primary and secondary process. 
>>>> While....
>>>>
>>>>> +is not permitted to allocate or release shared memory, so some ops 
>>>>> are not supported
>>>>> +as follows:
>>>>> +``dev_configure``
>>>>> +``dev_start``
>>>>> +``dev_stop``
>>>>> +``rx_queue_setup``
>>>>> +``tx_queue_setup``
>>>>> +``rx_queue_release``
>>>>> +``tx_queue_release``
>>>> :::: snip:::
>>>>
>>
>> .
> .