Re: [PATCH] event/cnxk: add preliminary Tx queue depth check

[Jerin Jacob <jerinjacobk@gmail.com>]

On Tue, Aug 16, 2022 at 9:05 PM <pbhagavatula@marvell.com> wrote:
>
> From: Pavan Nikhilesh <pbhagavatula@marvell.com>
>
> add preliminary Tx queue depth check and return on failure.
> Once the check passes, tx_adapter_enqueue() function becomes
> a blocking call till it succeeds.
>
> Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

Applied to dpdk-next-net-eventdev/for-main. Thanks

> ---
>  drivers/event/cnxk/cn10k_worker.h | 5 +++++
>  1 file changed, 5 insertions(+)
>
> diff --git a/drivers/event/cnxk/cn10k_worker.h b/drivers/event/cnxk/cn10k_worker.h
> index 0915f404e0..a71e076ff8 100644
> --- a/drivers/event/cnxk/cn10k_worker.h
> +++ b/drivers/event/cnxk/cn10k_worker.h
> @@ -655,6 +655,11 @@ cn10k_sso_hws_event_tx(struct cn10k_sso_hws *ws, struct rte_event *ev,
>         }
>
>         m = ev->mbuf;
> +       txq = cn10k_sso_hws_xtract_meta(m, txq_data);
> +       if (((txq->nb_sqb_bufs_adj -
> +             __atomic_load_n((int16_t *)txq->fc_mem, __ATOMIC_RELAXED))
> +            << txq->sqes_per_sqb_log2) <= 0)
> +               return 0;
>         cn10k_sso_tx_one(ws, m, cmd, lmt_id, lmt_addr, ev->sched_type, txq_data,
>                          flags);
>
> --
> 2.25.1
>