From: Rich Lane <rich.lane@bigswitch.com>
Date: Tue, 10 Nov 2015 02:15:13 +0000 (-0800)
Subject: vhost: make destroy callback on reset owner message
X-Git-Tag: spdx-start~8086
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=d243ecf0c2de7c0fe45f6efa30c26f1c79c8cb16;p=dpdk.git

vhost: make destroy callback on reset owner message

QEMU sends VHOST_RESET_OWNER first when shutting down.
There was previously no way for the dataplane to know that the
virtio_net instance had become unusable and it would segfault
when trying to do RX/TX.

Signed-off-by: Rich Lane <rich.lane@bigswitch.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
---

diff --git a/lib/librte_vhost/virtio-net.c b/lib/librte_vhost/virtio-net.c
index 14278deef4..39a6a5e8de 100644
--- a/lib/librte_vhost/virtio-net.c
+++ b/lib/librte_vhost/virtio-net.c
@@ -436,6 +436,9 @@ reset_owner(struct vhost_device_ctx ctx)
 	if (dev == NULL)
 		return -1;
 
+	if (dev->flags & VIRTIO_DEV_RUNNING)
+		notify_ops->destroy_device(dev);
+
 	device_fh = dev->device_fh;
 	cleanup_device(dev);
 	init_device(dev);