Re: [dpdk-dev] [PATCH v3 2/2] ethdev: add hierarchical scheduler API

[Thomas Monjalon <thomas.monjalon@6wind.com>]

2017-03-16 16:23, Dumitrescu, Cristian:
> ... <snip>
> 
> > > Thomas, given Tim's confirmation of Intel's plans to implement this API for
> > the ixgbe and i40e drivers in DPDK release 17.8, are you in favour of including
> > this API in 17.5 with experimental tag (subject to full API agreement being
> > reached)?
> > 
> > I think starting a branch in a dedicated "next" repo is a better approach.
> > rte_flow and eventdev were (and will be) integrated only when at least one
> > hardware device is supported.
> > I suggest to follow the same workflow.
> > 
> 
> Thomas, if this is the only path forward you are willing to support, then let's go this way, but let's make sure we are all on the same page with the terms and conditions that apply.
> 
> Do you agree now to merge this next-tree to DPDK once this API is implemented for at least one PMD? We would like to avoid getting any last minute objections from you or anybody else on the fundamentals; if you have any, please let's discuss them now.

At least one "hardware" PMD, yes. It would prove the API can work for real.
About accepting it definitely in a given release, it will be checked
with the technical board on Monday.

> How do we manage the API freeze on the next-tree? Once the API is agreed, we would like to freeze it so the driver development can proceed; we can then do some reasonably small changes to the API based on the learnings we get during driver development. We would like to welcome any parties interested in contributing to join Cavium, Intel and NXP in this effort, but we would like to avoid any last minute major API change requests.

You are taking it the wrong way. Your main concern is to not be disturbed
with change requests. It should be the contrary: you have a chance to
work with other vendors to test and improve the API.
You should embrace this chance and delay the API freeze as much as possible.