From 83afcdd1bc6e8de01b2929b8f012eaac82d54f70 Mon Sep 17 00:00:00 2001 From: Nipun Gupta Date: Tue, 14 Feb 2017 18:12:41 +0530 Subject: [PATCH] eventdev: amend comments for events limit and threshold Updated the comments on 'nb_events_limit' of 'struct rte_event_dev_config' and 'new_event_threshold' of 'struct rte_event_port_conf'. Signed-off-by: Nipun Gupta Acked-by: Harry van Haaren --- lib/librte_eventdev/rte_eventdev.h | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h index c2f931012f..b619160b3c 100644 --- a/lib/librte_eventdev/rte_eventdev.h +++ b/lib/librte_eventdev/rte_eventdev.h @@ -404,11 +404,12 @@ struct rte_event_dev_config { * @see RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT */ int32_t nb_events_limit; - /**< Applies to *closed system* event dev only. This field indicates a - * limit to ethdev-like devices to limit the number of events injected - * into the system to not overwhelm core-to-core events. - * This value cannot exceed the *max_num_events* which previously - * provided in rte_event_dev_info_get() + /**< In a *closed system* this field is the limit on maximum number of + * events that can be inflight in the eventdev at a given time. The + * limit is required to ensure that the finite space in a closed system + * is not overwhelmed. The value cannot exceed the *max_num_events* + * as provided by rte_event_dev_info_get(). + * This value should be set to -1 for *open system*. */ uint8_t nb_event_queues; /**< Number of event queues to configure on this device. @@ -633,7 +634,8 @@ struct rte_event_port_conf { * can have a lower threshold so as not to overwhelm the device, * while ports used for worker pools can have a higher threshold. * This value cannot exceed the *nb_events_limit* - * which previously supplied to rte_event_dev_configure() + * which was previously supplied to rte_event_dev_configure(). + * This should be set to '-1' for *open system*. */ uint8_t dequeue_depth; /**< Configure number of bulk dequeues for this event port. -- 2.20.1