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| author | Eugenio Pérez <eperezma@redhat.com> | 2020-04-18 12:22:15 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-06-22 12:34:22 -0400 |
| commit | 6741239260293e46a32a141fb61bf2c062b0b6ed (patch) | |
| tree | 52a5d38669a7e434b9f2b5500a33d6a86165b449 /tools | |
| parent | 4cfb93935337d8f9680d865b0987583e462cfcc7 (diff) | |
| download | lwn-6741239260293e46a32a141fb61bf2c062b0b6ed.tar.gz lwn-6741239260293e46a32a141fb61bf2c062b0b6ed.zip | |
tools/virtio: Extract virtqueue initialization in vq_reset
So we can reset after that in the main loop.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Link: https://lore.kernel.org/r/20200418102217.32327-7-eperezma@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/virtio/virtio_test.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c index 0a247ba3b899..bc16c818bda3 100644 --- a/tools/virtio/virtio_test.c +++ b/tools/virtio/virtio_test.c @@ -94,6 +94,19 @@ void vhost_vq_setup(struct vdev_info *dev, struct vq_info *info) assert(r >= 0); } +static void vq_reset(struct vq_info *info, int num, struct virtio_device *vdev) +{ + if (info->vq) + vring_del_virtqueue(info->vq); + + memset(info->ring, 0, vring_size(num, 4096)); + vring_init(&info->vring, num, info->ring, 4096); + info->vq = __vring_new_virtqueue(info->idx, info->vring, vdev, true, + false, vq_notify, vq_callback, "test"); + assert(info->vq); + info->vq->priv = info; +} + static void vq_info_add(struct vdev_info *dev, int num) { struct vq_info *info = &dev->vqs[dev->nvqs]; @@ -103,13 +116,7 @@ static void vq_info_add(struct vdev_info *dev, int num) info->call = eventfd(0, EFD_NONBLOCK); r = posix_memalign(&info->ring, 4096, vring_size(num, 4096)); assert(r >= 0); - memset(info->ring, 0, vring_size(num, 4096)); - vring_init(&info->vring, num, info->ring, 4096); - info->vq = - __vring_new_virtqueue(info->idx, info->vring, &dev->vdev, true, - false, vq_notify, vq_callback, "test"); - assert(info->vq); - info->vq->priv = info; + vq_reset(info, num, &dev->vdev); vhost_vq_setup(dev, info); dev->fds[info->idx].fd = info->call; dev->fds[info->idx].events = POLLIN; |