[dpdk-dev] [PATCH v3 4/4] eventdev: add device started attribute

[Harry van Haaren]

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>
---
 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 3756ec7..87a1e19 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;
 	}
 
 	return 0;
diff --git a/lib/librte_eventdev/rte_eventdev.h b/lib/librte_eventdev/rte_eventdev.h
index cd3026d..f76d9f9 100644
--- a/lib/librte_eventdev/rte_eventdev.h
+++ b/lib/librte_eventdev/rte_eventdev.h
@@ -695,6 +695,10 @@ rte_event_port_setup(uint8_t dev_id, uint8_t port_id,
  * The count of queues.
  */
 #define RTE_EVENT_DEV_ATTR_QUEUE_COUNT 1
+/**
+ * The state of the device, returns zero if stopped, non-zero when running.
+ */
+#define RTE_EVENT_DEV_ATTR_STARTED 2
 
 /**
  * Get an attribute from a device.
-- 
2.7.4