From: Zhiyong Yang <zhiyong.yang@intel.com>
Date: Wed, 21 Mar 2018 03:03:41 +0000 (+0800)
Subject: net/virtio: add check for cvq
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=ac860c86e3be03d1e933611c179dc1fc6dd981cc;p=dpdk.git

net/virtio: add check for cvq

Add checking for cvq to judge if virtio_ack_link_announce should be called.
The existing code doesn't cause issue, and add the checking just to look
more reasonable.

Signed-off-by: Zhiyong Yang <zhiyong.yang@intel.com>
Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---

diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index 4a1971cd59..2ef213d1a5 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -1296,7 +1296,8 @@ virtio_interrupt_handler(void *param)
 
 	if (isr & VIRTIO_NET_S_ANNOUNCE) {
 		virtio_notify_peers(dev);
-		virtio_ack_link_announce(dev);
+		if (hw->cvq)
+			virtio_ack_link_announce(dev);
 	}
 }