diff options
author | Tiwei Bie <tiwei.bie@intel.com> | 2018-05-24 18:33:33 +0800 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2018-05-24 21:14:11 +0300 |
commit | 4d0cf552d3a9585f380e8abdc313e4d416a56aa0 (patch) | |
tree | 024c2f4a00c2aa98ca90aa2bbb8936da2377076d /hw/block/vhost-user-blk.c | |
parent | 5f57fbeaaf7c4cd33152d7f2e449caab4d4209d9 (diff) |
vhost-user: introduce shared vhost-user state
When multi queue is enabled e.g. for a virtio-net device,
each queue pair will have a vhost_dev, and the only thing
shared between vhost devs currently is the chardev. This
patch introduces a vhost-user state structure which will
be shared by all vhost devs of the same virtio device.
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw/block/vhost-user-blk.c')
-rw-r--r-- | hw/block/vhost-user-blk.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/hw/block/vhost-user-blk.c b/hw/block/vhost-user-blk.c index 975eae6211..7c3fa8bb1c 100644 --- a/hw/block/vhost-user-blk.c +++ b/hw/block/vhost-user-blk.c @@ -226,6 +226,7 @@ static void vhost_user_blk_device_realize(DeviceState *dev, Error **errp) { VirtIODevice *vdev = VIRTIO_DEVICE(dev); VHostUserBlk *s = VHOST_USER_BLK(vdev); + VhostUserState *user; int i, ret; if (!s->chardev.chr) { @@ -243,6 +244,15 @@ static void vhost_user_blk_device_realize(DeviceState *dev, Error **errp) return; } + user = vhost_user_init(); + if (!user) { + error_setg(errp, "vhost-user-blk: failed to init vhost_user"); + return; + } + + user->chr = &s->chardev; + s->vhost_user = user; + virtio_init(vdev, "virtio-blk", VIRTIO_ID_BLOCK, sizeof(struct virtio_blk_config)); @@ -258,7 +268,7 @@ static void vhost_user_blk_device_realize(DeviceState *dev, Error **errp) vhost_dev_set_config_notifier(&s->dev, &blk_ops); - ret = vhost_dev_init(&s->dev, &s->chardev, VHOST_BACKEND_TYPE_USER, 0); + ret = vhost_dev_init(&s->dev, s->vhost_user, VHOST_BACKEND_TYPE_USER, 0); if (ret < 0) { error_setg(errp, "vhost-user-blk: vhost initialization failed: %s", strerror(-ret)); @@ -283,6 +293,10 @@ vhost_err: virtio_err: g_free(s->dev.vqs); virtio_cleanup(vdev); + + vhost_user_cleanup(user); + g_free(user); + s->vhost_user = NULL; } static void vhost_user_blk_device_unrealize(DeviceState *dev, Error **errp) @@ -294,6 +308,12 @@ static void vhost_user_blk_device_unrealize(DeviceState *dev, Error **errp) vhost_dev_cleanup(&s->dev); g_free(s->dev.vqs); virtio_cleanup(vdev); + + if (s->vhost_user) { + vhost_user_cleanup(s->vhost_user); + g_free(s->vhost_user); + s->vhost_user = NULL; + } } static void vhost_user_blk_instance_init(Object *obj) |