[dpdk-stable] [PATCH v2] event/dsw: ignore scheduling type for single-link queues

[Mattias Rönnblom]

The scheduling type parameter is not applicable for single link
queues. DSW would, at the time of rte_event_queue_setup(), erroneously
verify that scheduling type was one of the supported types, and
returned -ENOTSUP in case of RTE_SCHED_TYPE_ORDERED.

Fixes: 4540ee9c68 ("event/dsw: add device and queue configuration")
Cc: stable at dpdk.org

Signed-off-by: Mattias Rönnblom <mattias.ronnblom at ericsson.com>
---
 drivers/event/dsw/dsw_evdev.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/event/dsw/dsw_evdev.c b/drivers/event/dsw/dsw_evdev.c
index 4157d130c..9387d4149 100644
--- a/drivers/event/dsw/dsw_evdev.c
+++ b/drivers/event/dsw/dsw_evdev.c
@@ -102,9 +102,6 @@ dsw_queue_setup(struct rte_eventdev *dev, uint8_t queue_id,
 	if (RTE_EVENT_QUEUE_CFG_ALL_TYPES & conf->event_queue_cfg)
 		return -ENOTSUP;
 
-	if (conf->schedule_type == RTE_SCHED_TYPE_ORDERED)
-		return -ENOTSUP;
-
 	/* SINGLE_LINK is better off treated as TYPE_ATOMIC, since it
 	 * avoid the "fake" TYPE_PARALLEL flow_id assignment. Since
 	 * the queue will only have a single serving port, no
@@ -113,8 +110,12 @@ dsw_queue_setup(struct rte_eventdev *dev, uint8_t queue_id,
 	 */
 	if (RTE_EVENT_QUEUE_CFG_SINGLE_LINK & conf->event_queue_cfg)
 		queue->schedule_type = RTE_SCHED_TYPE_ATOMIC;
-	else /* atomic or parallel */
+	else {
+		if (conf->schedule_type == RTE_SCHED_TYPE_ORDERED)
+			return -ENOTSUP;
+		/* atomic or parallel */
 		queue->schedule_type = conf->schedule_type;
+	}
 
 	queue->num_serving_ports = 0;
 
-- 
2.17.1