Some PMD like OCTEONTX can have optimized handling of
events if the PMD knows it is a producer pattern in advance.
For instance, OCTEONTX PMD can support burst mode if
op == RTE_EVENT_OP_NEW.
Since the event producer initialize(set all_op_new == 1) the event
object before the main producer loop, This scheme does not call for
any performance regression on other PMDs.
Signed-off-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
---
Another option is to add a flag in enqueue API or have parallel enqueue API.
---
drivers/event/octeontx/ssovf_worker.c | 12 ++++++++++--
lib/librte_eventdev/rte_eventdev.h | 10 +++++++++-
2 files changed, 19 insertions(+), 3 deletions(-)
diff --git a/drivers/event/octeontx/ssovf_worker.c
b/drivers/event/octeontx/ssovf_worker.c
index ad3fe684d..209c595cf 100644
--- a/drivers/event/octeontx/ssovf_worker.c
+++ b/drivers/event/octeontx/ssovf_worker.c
@@ -196,8 +196,16 @@ ssows_enq(void *port, const struct rte_event *ev)
uint16_t __hot
ssows_enq_burst(void *port, const struct rte_event ev[], uint16_t nb_events)
{
- RTE_SET_USED(nb_events);
- return ssows_enq(port, ev);
+ uint16_t i;
+ struct ssows *ws = port;
+
+ if (ev[0].all_op_new) {
+ rte_smp_wmb();
+ for (i = 0; i < nb_events; i++)
+ ssows_new_event(ws, &ev[i]);
+ return i;
+ } else
+ return ssows_enq(port, ev);
}
void
diff --git a/lib/librte_eventdev/rte_eventdev.h
b/lib/librte_eventdev/rte_eventdev.h
index a248fe90e..1c1a46593 100644
--- a/lib/librte_eventdev/rte_eventdev.h
+++ b/lib/librte_eventdev/rte_eventdev.h
@@ -933,7 +933,15 @@ struct rte_event {
* and is undefined on dequeue.
* @see RTE_EVENT_OP_NEW, (RTE_EVENT_OP_*)
*/
- uint8_t rsvd:4;
+ uint8_t all_op_new:1;
+ /**< Valid only with event enqueue operation - This hint
+ * indicates that the enqueue request has only the
+ * events with op == RTE_EVENT_OP_NEW.
+ * The event producer, typically use this pattern to
+ * inject the events to eventdev.
+ * @see RTE_EVENT_OP_NEW rte_event_enqueue_burst()
+ */
+ uint8_t rsvd:3;
/**< Reserved for future use */
uint8_t sched_type:2;
/**< Scheduler synchronization type (RTE_SCHED_TYPE_*)
--
2.13.1
