Re: [PATCH] eventdev: remove single-event enqueue operation

[Jerin Jacob <jerinjacobk@gmail.com>]

On Tue, Jul 4, 2023 at 5:29 PM Mattias Rönnblom
<mattias.ronnblom@ericsson.com> wrote:
>
> Eliminate non-burst enqueue operation from Eventdev.
>
> The effect of this change is to reduce Eventdev code complexity
> somewhat and slightly improve performance.
>
> The single-event enqueue shortcut provided a very minor performance
> advantage in some situations (e.g., with a compile time-constant burst
> size of '1'), but would in other situations cause a noticeable
> performance penalty (e.g., rte_event_enqueue_forward_burst() with run
> time-variable burst sizes varying between '1' and larger burst sizes).
>
> Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
>
> --
>
> PATCH: Add ABI deprecation notice.


Need to split this patch as depreciation notice only will be merged to
this release.
Example: https://patches.dpdk.org/project/dpdk/patch/20230704194445.3332847-1-gakhil@marvell.com/

I think, we need to remove the single dequeue as well. So I think, we
can write a generic deprecation notice
which says size of struct rte_event_fp_ops will be changed by removing
single enqueue, dequeue and.
Reservation fields size . Later we can analysis the performance impact
when the implementation patch is ready.
For now, let make deprecation notice for this release.