[dpdk-dev] [PATCH v9 0/8] Enable dynamic config of subport bandwidth

Dharmappa, Savinay savinay.dharmappa at intel.com
Mon Oct 12 07:24:33 CEST 2020


09/10/2020 14:39, Savinay Dharmappa:
> DPDK sched library allows runtime configuration of the pipe profiles 
> to the pipes of the subport once scheduler hierarchy is constructed. 
> However, to change the subport level bandwidth, existing hierarchy 
> needs to be dismantled and whole process of building hierarchy under 
> subport nodes needs to be repeated which might result in router 
> downtime. Furthermore, due to lack of dynamic configuration of the 
> subport bandwidth profile configuration (shaper and Traffic class 
> rates), the user application is unable to dynamically re-distribute 
> the excess-bandwidth of one subport among other subports in the 
> scheduler hierarchy. Therefore, it is also not possible to adjust the 
> subport bandwidth profile in sync with dynamic changes in pipe 
> profiles of subscribers who want to consume higher bandwidth opportunistically.
> 
> This patch series implements dynamic configuration of the subport 
> bandwidth profile to overcome the runtime situation when group of 
> subscribers are not using the allotted bandwidth and dynamic bandwidth 
> re-distribution is needed the without making any structural changes in the hierarchy.
> 
> The implementation work includes refactoring the existing api and data 
> structures defined for port and subport level, new APIs for adding 
> subport level bandwidth profiles that can be used in runtime.
> 
> ---
> v8 -> v9
>    - updated ABI section in release notes.
>    - Addressed review comments from patch 8
>      of v8.

I was asking a question in my reply to v8 but you didn't hit the "reply" button.
>> sorry for that. All the question raised by you were relevant so I addressed them and sent out v9. 

One more question: why don't you keep the ack given by Cristian in v7?
>> I am carrying ack given Cristian in v9, but It is at the bottom of cover letter.





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