[dpdk-dev] [PATCH v13 1/2] ethdev: Add a new event type to notify a queue state changed event

[Tetsuya Mukawa]

This patch adds a below event type.
 - RTE_ETH_EVENT_QUEUE_STATE_CHANGE

This event will be occured when some queues are enabled or disabled.
So far, only vhost PMD supports the event, and it indicates some queues
are enabled or disabled by virtio-net device. Such an event is needed
because virtio-net device may not enable all queues vhost PMD prepare.

Because only vhost PMD uses the event so far, it isn't an actual hardware
interrupt but a simple software event.

Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
Acked-by: Ferruh Yigit <ferruh.yigit at intel.com>
Acked-by: Yuanhan Liu <yuanhan.liu at linux.intel.com>
Acked-by: Rich Lane <rich.lane at bigswitch.com>
Tested-by: Rich Lane <rich.lane at bigswitch.com>
---
 lib/librte_ether/rte_ethdev.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/librte_ether/rte_ethdev.h b/lib/librte_ether/rte_ethdev.h
index b5704e1..470d7a5 100644
--- a/lib/librte_ether/rte_ethdev.h
+++ b/lib/librte_ether/rte_ethdev.h
@@ -2917,6 +2917,8 @@ rte_eth_tx_buffer_count_callback(struct rte_mbuf **pkts, uint16_t unsent,
 enum rte_eth_event_type {
 	RTE_ETH_EVENT_UNKNOWN,  /**< unknown event type */
 	RTE_ETH_EVENT_INTR_LSC, /**< lsc interrupt event */
+	RTE_ETH_EVENT_QUEUE_STATE_CHANGE,
+				/**< queue state changed interrupt */
 	RTE_ETH_EVENT_MAX       /**< max value of this enum */
 };
 
-- 
2.1.4