event/dsw: ignore scheduling type for single-link queues
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Commit Message
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.
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
---
drivers/event/dsw/dsw_evdev.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
Comments
On 2019-05-10 11:47, Mattias Rönnblom wrote:
> 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.
>
> Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Adding stable@dpdk.org.
On 10/05/2019 10:53, Mattias Rönnblom wrote:
> On 2019-05-10 11:47, Mattias Rönnblom wrote:
>> 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.
>>
>> Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
>
> Adding stable@dpdk.org.
>
Please add it and a Fixes tag in the commit msg, so it won't be missed
later, thanks.
http://doc.dpdk.org/guides/contributing/stable.html#what-changes-should-be-backported
@@ -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;