[dpdk-dev] [PATCH v5 4/5] eventdev: add device started attribute

Harry van Haaren harry.van.haaren at intel.com
Wed Sep 20 15:36:02 CEST 2017


This commit adds an attribute to the eventdev, allowing applications
to retrieve if the eventdev is running or stopped. Note that no API
or ABI changes were required in adding the statistic, and code changes
are minimal.

Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
Acked-by: Jerin Jacob <jerin.jacob at caviumnetworks.com>
---
 lib/librte_eventdev/rte_eventdev.c | 3 +++
 lib/librte_eventdev/rte_eventdev.h | 4 ++++
 2 files changed, 7 insertions(+)

diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c
index 73e1df0..480b26e 100644
--- a/lib/librte_eventdev/rte_eventdev.c
+++ b/lib/librte_eventdev/rte_eventdev.c
@@ -740,6 +740,9 @@ rte_event_dev_attr_get(uint8_t dev_id, uint32_t attr_id,
 	case RTE_EVENT_DEV_ATTR_QUEUE_COUNT:
 		*attr_value = dev->data->nb_queues;
 		break;
+	case RTE_EVENT_DEV_ATTR_STARTED:
+		*attr_value = dev->data->dev_started;
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
index 3fd447a..1b629fc 100644
--- a/lib/librte_eventdev/rte_eventdev.h
+++ b/lib/librte_eventdev/rte_eventdev.h
@@ -407,6 +407,10 @@ rte_event_dev_info_get(uint8_t dev_id, struct rte_event_dev_info *dev_info);
  * The count of queues.
  */
 #define RTE_EVENT_DEV_ATTR_QUEUE_COUNT 1
+/**
+ * The status of the device, zero for stopped, non-zero for started.
+ */
+#define RTE_EVENT_DEV_ATTR_STARTED 2
 
 /**
  * Get an attribute from a device.
-- 
2.7.4



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