From: Steven Luong <sluong@cisco.com>
Date: Tue, 1 Aug 2017 16:17:36 +0000 (-0700)
Subject: net/virtio-user: send kick notify backend on init
X-Git-Tag: spdx-start~1668
X-Git-Url: http://git.droids-corp.org/?p=dpdk.git;a=commitdiff_plain;h=924da8f1c4f50ac2c45a2335cb2d5ff9616fc8e9

net/virtio-user: send kick notify backend on init

Acccording to the vhost-user spec [0], 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.

[0]: https://fossies.org/linux/qemu/docs/specs/vhost-user.txt

Signed-off-by: Steven Luong <sluong@cisco.com>
Acked-by: Yuanhan Liu <yliu@fridaylinux.org>
---

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index e320811ede..c1b16408f6 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1754,6 +1754,11 @@ 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++) {