Hi Amit,

I think this commit will complicated the test, plus futer we may add more test 
(e.g. fill)

I agree Bruce's advise in the [1], let also support "lcore_dma0/1/2",

User could provide dma info by two way:
1) lcore_dma=, which seperate each dma with ", ", but a maximum of a certain 
number is allowed.
2) lcore_dma0/1/2/..., each dma device take one line

[1] 
https://patchwork.dpdk.org/project/dpdk/patch/[email protected]/

Thanks

On 2024/2/29 22:03, Amit Prakash Shukla wrote:
> Hi Chengwen,
> 
> I liked your suggestion and tried making changes, but encountered parsing 
> issue for CFG files with line greater than CFG_VALUE_LEN=256(current value 
> set).
> 
> There is a discussion on the similar lines in another patch set: 
> https://patchwork.dpdk.org/project/dpdk/patch/[email protected]/.
> 
> I believe this patch can be taken as-is and we can come up with the solution 
> when we can increase the CFG_VALUE_LEN as changing CFG_VALUE_LEN in this 
> release is causing ABI breakage.
> 
> Thanks,
> Amit Shukla
> 
>> -----Original Message-----
>> From: Amit Prakash Shukla
>> Sent: Wednesday, February 28, 2024 3:08 PM
>> To: fengchengwen <[email protected]>; Cheng Jiang
>> <[email protected]>; Gowrishankar Muthukrishnan
>> <[email protected]>
>> Cc: [email protected]; Jerin Jacob <[email protected]>; Anoob Joseph
>> <[email protected]>; Kevin Laatz <[email protected]>; Bruce
>> Richardson <[email protected]>; Pavan Nikhilesh Bhagavatula
>> <[email protected]>
>> Subject: RE: [EXT] Re: [PATCH v2] app/dma-perf: support bi-directional
>> transfer
>>
>> Hi Chengwen,
>>
>> Please see my reply in-line.
>>
>> Thanks
>> Amit Shukla
>>
>>> -----Original Message-----
>>> From: fengchengwen <[email protected]>
>>> Sent: Wednesday, February 28, 2024 12:34 PM
>>> To: Amit Prakash Shukla <[email protected]>; Cheng Jiang
>>> <[email protected]>; Gowrishankar Muthukrishnan
>>> <[email protected]>
>>> Cc: [email protected]; Jerin Jacob <[email protected]>; Anoob Joseph
>>> <[email protected]>; Kevin Laatz <[email protected]>; Bruce
>>> Richardson <[email protected]>; Pavan Nikhilesh Bhagavatula
>>> <[email protected]>
>>> Subject: [EXT] Re: [PATCH v2] app/dma-perf: support bi-directional
>>> transfer
>>>
>>> External Email
>>>
>>> ----------------------------------------------------------------------
>>> Hi Amit and Gowrishankar,
>>>
>>> It's nature to support multiple dmadev test in one testcase, and the
>>> original framework supports it.
>>> But it seem we both complicated it when adding support for non-
>> mem2mem
>>> dma test.
>>>
>>> The new added "direction" and "vchan_dev" could treat as the dmadev's
>>> private configure, some thing like:
>>>
>>>
>> lcore_dma=lcore10@0000:00:04.2,vchan=0,dir=mem2dev,devtype=pcie,radd
>>> r=xxx,coreid=1,pfid=2,vfid=3
>>>
>>> then this bi-directional could impl only with config:
>>>
>>>
>> lcore_dma=lcore10@0000:00:04.2,dir=mem2dev,devtype=pcie,raddr=xxx,cor
>>> eid=1,pfid=2,vfid=3,
>>>
>> lcore11@0000:00:04.3,dir=dev2mem,devtype=pcie,raddr=xxx,coreid=1,pfid=
>>> 2,vfid=3
>>> so that the lcore10 will do mem2dev with device 0000:00:04.2, while
>>> lcore11 will do dev2mem with device 0000:00:04.3.
>>
>> Thanks for the suggestion. I will make the suggested changes and send the
>> next version.

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