On Mon, Apr 3, 2023 at 6:49 PM Mattias Rönnblom
<mattias.ronnb...@ericsson.com> wrote:
>
> Introduce bulk enqueue and dequeue operations into the
> <rte_event_ring.h> API, to supplement the already-existing burst
> calls.
>
> Signed-off-by: Mattias Rönnblom <mattias.ronnb...@ericsson.com>
Looks good to me.
As the original author adding @Richardson, Bruce for review.
> ---
> lib/eventdev/rte_event_ring.h | 74 +++++++++++++++++++++++++++++++++++
> 1 file changed, 74 insertions(+)
>
> diff --git a/lib/eventdev/rte_event_ring.h b/lib/eventdev/rte_event_ring.h
> index 7efa64444b..f9cf19ae16 100644
> --- a/lib/eventdev/rte_event_ring.h
> +++ b/lib/eventdev/rte_event_ring.h
> @@ -67,6 +67,80 @@ rte_event_ring_free_count(const struct rte_event_ring *r)
> return rte_ring_free_count(&r->r);
> }
>
> +
> +/**
> + * Enqueue several objects on a ring.
> + *
> + * This function calls the multi-producer or the single-producer
> + * version depending on the default behavior that was specified at
> + * ring creation time (see flags).
> + *
> + * @param r
> + * pointer to the event ring
> + * @param events
> + * pointer to an array of struct rte_event objects
> + * @param n
> + * The number of events in the array to enqueue
> + * @param free_space
> + * if non-NULL, returns the amount of space in the ring after the
> + * enqueue operation has completed
> + * @return
> + * the number of objects enqueued, either 0 or n
> + */
> +static __rte_always_inline unsigned int
> +rte_event_ring_enqueue_bulk(struct rte_event_ring *r,
> + const struct rte_event *events,
> + unsigned int n, uint16_t *free_space)
> +{
> + unsigned int num;
> + uint32_t space;
> +
> + num = rte_ring_enqueue_bulk_elem(&r->r, events,
> + sizeof(struct rte_event), n,
> + &space);
> +
> + if (free_space != NULL)
> + *free_space = space;
> +
> + return num;
> +}
> +
> +/**
> + * Dequeue a set of events from a ring
> + *
> + * Note: this API does not work with pointers to events, rather it copies
> + * the events themselves to the destination ``events`` buffer.
> + *
> + * @param r
> + * pointer to the event ring
> + * @param events
> + * pointer to an array to hold the struct rte_event objects
> + * @param n
> + * number of events that can be held in the ``events`` array
> + * @param available
> + * if non-null, is updated to indicate the number of events remaining in
> + * the ring once the dequeue has completed
> + * @return
> + * the number of objects dequeued, either 0 or n
> + */
> +static __rte_always_inline unsigned int
> +rte_event_ring_dequeue_bulk(struct rte_event_ring *r,
> + struct rte_event *events,
> + unsigned int n, uint16_t *available)
> +{
> + unsigned int num;
> + uint32_t remaining;
> +
> + num = rte_ring_dequeue_bulk_elem(&r->r, events,
> + sizeof(struct rte_event), n,
> + &remaining);
> +
> + if (available != NULL)
> + *available = remaining;
> +
> + return num;
> +}
> +
> /**
> * Enqueue a set of events onto a ring
> *
> --
> 2.34.1
>
