Re: [PATCH v7 4/8] x86/resctrl: Add comments on RFTYPE flags hierarchy

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Hi Reinette,

On 8/17/23 12:42, Reinette Chatre wrote:
> Hi Babu,
> 
> On 8/17/2023 10:07 AM, Moger, Babu wrote:
>> On 8/17/23 10:37, Reinette Chatre wrote:
>>> On 8/17/2023 7:20 AM, Moger, Babu wrote:
> 
>>>> + *
>>>> + *             --> RFTYPE_MON (Files for all monitoring resources)
>>>> + *                 directory: L3_MON
>>>
>>> Should this not be below RFTYPE_RES_CACHE? 
>>
>> This is kind of odd. I know why you are saying it. Wouldn't it confuse the
>> user? Then, it feels like mon_features and num_rmids don't belong L3_MON.
>>
> 
> This is exactly the confusion that I attempted to highlight in my
> first response to this patch. The same issue is present for
> "num_closids" (which is currently treated differently ... at least
> these need to be consistent). How can it be made obvious that
> these files are present in all resource sub-directories while
> also capturing the hierarchy of the RFTYPE flags? I could not
> find a clear way and that is why I ended up removing the directories
> in my earlier proposal and just stick to documenting the file flags
> that only applies to files anyway. 
> 
> What do you think of something like below? It has duplication
> but may be less confusing while still capturing the flags
> accurately?

Yes. This looks good to me.

> 
> 	--> RFTYPE_MON (Files for all monitoring resources)
> 	    Directory: L3_MON
> 	    Files: mon_features, num_rmids
> 
> 	    --> RFTYPE_RES_CACHE (Files for cache monitoring resources)
> 		Directory: L3_MON
> 		Files: max_threshold_occupancy, mbm_total_bytes_config,
> 		       mbm_local_bytes_config
> 
> 	--> RFTYPE_CTRL (Files for all control resources)
> 	    Directories: L2, L3, MB, SMBA
> 	    File: num_closids
> 
> 	    --> RFTYPE_CTRL (Files for all control resources)
> 		Directories: L2, L3
> 		Files: bit_usage, cbm_mask, min_cbm_bits,
> 		       shareable_bits
> 	
> 	    --> RFTYPE_RES_MB (Files for memory control resources)
> 		Directories: MB, SMBA
> 		Files: bandwidth_gran, delay_linear,
> 		       min_bandwidth, thread_throttle_mode
> 
> 	
>>>> + *                               Files: bit_usage, cbm_mask, min_cbm_bits,
>>>> + *                                      shareable_bits
>>>
>>> The extra indent is not clear to me. Did you do it to represent
>>> a hierarchy or just to line up the ":"?
>>
>> This is to line up with :. I can fix it.
>>
>> Just wondering how do you notice these tabs? My linux diff does not show
>> any difference. Are you using any utilities to see these tabs?
> 
> My editor is configured to visualize tabs and trailing spaces. In
> this case it was just how my email client displayed it though.
> 

ok.
Thanks
Babu Moger



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