[dpdk-dev] [PATCH v2] compress/qat: enable dynamic huffman encoding

Akhil Goyal akhil.goyal at nxp.com
Fri Oct 12 13:39:49 CEST 2018



On 10/9/2018 7:39 PM, Trahe, Fiona wrote:
> Hi Akhil,
>
>> -----Original Message-----
>> From: Akhil Goyal [mailto:akhil.goyal at nxp.com]
>> Sent: Tuesday, October 9, 2018 12:02 PM
>> To: Trahe, Fiona <fiona.trahe at intel.com>; dev at dpdk.org
>> Cc: Jozwiak, TomaszX <tomaszx.jozwiak at intel.com>
>> Subject: Re: [dpdk-dev] [PATCH v2] compress/qat: enable dynamic huffman encoding
>>
>>
>>
>> On 10/5/2018 9:48 PM, Fiona Trahe wrote:
>>> Enable dynamic huffman encoding in the QAT comp PMD.
>>>
>>> Signed-off-by: Tomasz Jozwiak <tomaszx.jozwiak at intel.com>
>>> Signed-off-by: Fiona Trahe <fiona.trahe at intel.com>
>>> ---
>>> v2 changes:
>>>    - allocate 2 buffers per intermediate buffer sgl
>>>    - Compile out trace for debugging intermediate buffers
>>>
>>> Depends on:
>>> https://patches.dpdk.org/patch/45794/
>>>
>> //snip
>>> +#if 1
>>> +		QAT_LOG(DEBUG, "  : phys addr of sgl[%i] in array_of_pointers"
>>> +			    "= %lx", i, array_of_pointers->pointer[i]);
>>> +		QAT_LOG(DEBUG, "  : virt address of sgl[%i] = %p", i, sgl);
>>> +		QAT_LOG(DEBUG, "  : sgl->buffers[0].addr = %lx, len=%d",
>>> +			sgl->buffers[0].addr, sgl->buffers[0].len);
>>> +		QAT_LOG(DEBUG, "  : sgl->buffers[1].addr = %lx, len=%d",
>>> +			sgl->buffers[1].addr, sgl->buffers[1].len);
>>> +#endif
>>> +		}
>>> +#if 0
>>> +	QAT_DP_HEXDUMP_LOG(DEBUG,  "IM buffer memzone:", mz_start, 1504);
>>> +#endif
>> I believe #if 0 and #if 1 should be replaced with some debug macros, or
>> else dynamic logging shall take care of that.
> [Fiona] These are not on the data path, so I didn't think it appropriate to wrap with the DP log level compile option.
> And they generate a lot of trace, so make it impossible to see the other debug trace enabled with
> dynamic logging using level 8/DEBUG. Really a level 9 would be useful here, but I think this is overkill.
> I could have removed this code, but it's handy for debugging.
> How about if I add a local QAT define for it?
> #define QAT_IM_BUFFER_DEBUG 0
> #if QAT_IM_BUFFER_DEBUG
> ...
> #endif
I think local define would be better.




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