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

[Thomas Monjalon <thomas@monjalon.net>]

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.
> 
> Savinay Dharmappa (8):
>   sched: add support profile table
>   sched: introduce subport profile add function
>   sched: update subport rate dynamically
>   example/qos_sched: update subport rate dynamically
>   example/ip_pipeline: update subport rate dynamically
>   drivers/softnic: update subport rate dynamically
>   app/test_sched: update subport rate dynamically
>   sched: remove redundant code
> 
> Series-acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>

Applied with few minor changes in release notes, thanks