[dpdk-dev] [PATCH] net/virtio-user: send kick to tx queue to notify backend on initialization

[Steven]

Acccording to the spec, https://fossies.org/linux/qemu/docs/specs/vhost-user.txt

client must start ring upon receiving a kick (that is, detecting that file
descriptor is reachable) on the descriptor specified by
VHOST_USER_SET_VRING_KICK.

The code sends a kick to the rx queue. It is missing sending a kick for the
tx queue. This patch is to add the missing code to comply with the spec.

Signed-off-by: Steven <sluong at cisco.com>
---
 drivers/net/virtio/virtio_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 00a3122..6362e14 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1747,6 +1747,11 @@ virtio_dev_start(struct rte_eth_dev *dev)
 		virtqueue_notify(rxvq->vq);
 	}
 
+	for (i = 0; i < dev->data->nb_tx_queues; i++) {
+		txvq = dev->data->tx_queues[i];
+		virtqueue_notify(txvq->vq);
+	}
+
 	PMD_INIT_LOG(DEBUG, "Notified backend at initialization");
 
 	for (i = 0; i < dev->data->nb_rx_queues; i++) {
-- 
2.10.1 (Apple Git-78)