event: add function for reading unlink in progress

[dpdk.git] / lib / librte_eventdev / rte_eventdev_pmd.h

diff --git a/lib/librte_eventdev/rte_eventdev_pmd.h b/lib/librte_eventdev/rte_eventdev_pmd.h
index 3fbb4d2..6564573 100644 (file)
--- a/lib/librte_eventdev/rte_eventdev_pmd.h
+++ b/lib/librte_eventdev/rte_eventdev_pmd.h
@@ -332,6 +332,23 @@ typedef int (*eventdev_port_link_t)(struct rte_eventdev *dev, void *port,
 typedef int (*eventdev_port_unlink_t)(struct rte_eventdev *dev, void *port,
                uint8_t queues[], uint16_t nb_unlinks);
 
+/**
+ * Unlinks in progress. Returns number of unlinks that the PMD is currently
+ * performing, but have not yet been completed.
+ *
+ * @param dev
+ *   Event device pointer
+ *
+ * @param port
+ *   Event port pointer
+ *
+ * @return
+ *   Returns the number of in-progress unlinks. Zero is returned if none are
+ *   in progress.
+ */
+typedef int (*eventdev_port_unlinks_in_progress_t)(struct rte_eventdev *dev,
+               void *port);
+
 /**
  * Converts nanoseconds to *timeout_ticks* value for rte_event_dequeue()
  *
@@ -815,6 +832,8 @@ struct rte_eventdev_ops {
        /**< Link event queues to an event port. */
        eventdev_port_unlink_t port_unlink;
        /**< Unlink event queues from an event port. */
+       eventdev_port_unlinks_in_progress_t port_unlinks_in_progress;
+       /**< Unlinks in progress on an event port. */
        eventdev_dequeue_timeout_ticks_t timeout_ticks;
        /**< Converts ns to *timeout_ticks* value for rte_event_dequeue() */
        eventdev_dump_t dump;