Re: [Qemu-devel] [PATCH v3 1/3] vhost: rename VHOST_RESET_DEVICE back to VHOST_RESET_OWNER

["Michael S. Tsirkin" <mst@redhat.com>]

On Fri, Oct 23, 2015 at 04:48:45PM +0800, Yuanhan Liu wrote:
> It turned out that it breaks stuff (VHOST_RESET_OWNER is not defined),
> so revert it:
> 
>     http://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg00949.html
> 
> CC: "Michael S. Tsirkin" <mst@redhat.com>
> Reported-by: Paolo Bonzini <pbonzini@redhat.com>
> Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>

Yes but just renaming is kind of beside the point.
We need to move it and add enable/disable vq commands
in its place.

> ---
>  docs/specs/vhost-user.txt   | 4 ++--
>  hw/virtio/vhost-backend.c   | 2 +-
>  hw/virtio/vhost-user.c      | 6 +++---
>  linux-headers/linux/vhost.h | 2 +-
>  tests/vhost-user-test.c     | 4 ++--
>  5 files changed, 9 insertions(+), 9 deletions(-)
> 
> diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt
> index e0d71e2..d319715 100644
> --- a/docs/specs/vhost-user.txt
> +++ b/docs/specs/vhost-user.txt
> @@ -255,10 +255,10 @@ Message types
>        as an owner of the session. This can be used on the Slave as a
>        "session start" flag.
>  
> - * VHOST_USER_RESET_DEVICE
> + * VHOST_USER_RESET_OWNER
>  
>        Id: 4
> -      Equivalent ioctl: VHOST_RESET_DEVICE
> +      Equivalent ioctl: VHOST_RESET_OWNER
>        Master payload: N/A
>  
>        Issued when a new connection is about to be closed. The Master will no
> diff --git a/hw/virtio/vhost-backend.c b/hw/virtio/vhost-backend.c
> index 1d5f684..b734a60 100644
> --- a/hw/virtio/vhost-backend.c
> +++ b/hw/virtio/vhost-backend.c
> @@ -156,7 +156,7 @@ static int vhost_kernel_set_owner(struct vhost_dev *dev)
>  
>  static int vhost_kernel_reset_device(struct vhost_dev *dev)
>  {
> -    return vhost_kernel_call(dev, VHOST_RESET_DEVICE, NULL);
> +    return vhost_kernel_call(dev, VHOST_RESET_OWNER, NULL);
>  }
>  
>  static int vhost_kernel_get_vq_index(struct vhost_dev *dev, int idx)
> diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c
> index 78442ba..7c532f4 100644
> --- a/hw/virtio/vhost-user.c
> +++ b/hw/virtio/vhost-user.c
> @@ -43,7 +43,7 @@ typedef enum VhostUserRequest {
>      VHOST_USER_GET_FEATURES = 1,
>      VHOST_USER_SET_FEATURES = 2,
>      VHOST_USER_SET_OWNER = 3,
> -    VHOST_USER_RESET_DEVICE = 4,
> +    VHOST_USER_RESET_OWNER = 4,
>      VHOST_USER_SET_MEM_TABLE = 5,
>      VHOST_USER_SET_LOG_BASE = 6,
>      VHOST_USER_SET_LOG_FD = 7,
> @@ -157,7 +157,7 @@ static bool vhost_user_one_time_request(VhostUserRequest request)
>  {
>      switch (request) {
>      case VHOST_USER_SET_OWNER:
> -    case VHOST_USER_RESET_DEVICE:
> +    case VHOST_USER_RESET_OWNER:
>      case VHOST_USER_SET_MEM_TABLE:
>      case VHOST_USER_GET_QUEUE_NUM:
>          return true;
> @@ -486,7 +486,7 @@ static int vhost_user_set_owner(struct vhost_dev *dev)
>  static int vhost_user_reset_device(struct vhost_dev *dev)
>  {
>      VhostUserMsg msg = {
> -        .request = VHOST_USER_RESET_DEVICE,
> +        .request = VHOST_USER_RESET_OWNER,
>          .flags = VHOST_USER_VERSION,
>      };
>  
> diff --git a/linux-headers/linux/vhost.h b/linux-headers/linux/vhost.h
> index 14a0160..ead86db 100644
> --- a/linux-headers/linux/vhost.h
> +++ b/linux-headers/linux/vhost.h
> @@ -78,7 +78,7 @@ struct vhost_memory {
>  #define VHOST_SET_OWNER _IO(VHOST_VIRTIO, 0x01)
>  /* Give up ownership, and reset the device to default values.
>   * Allows subsequent call to VHOST_OWNER_SET to succeed. */
> -#define VHOST_RESET_DEVICE _IO(VHOST_VIRTIO, 0x02)
> +#define VHOST_RESET_OWNER _IO(VHOST_VIRTIO, 0x02)
>  
>  /* Set up/modify memory layout */
>  #define VHOST_SET_MEM_TABLE	_IOW(VHOST_VIRTIO, 0x03, struct vhost_memory)
> diff --git a/tests/vhost-user-test.c b/tests/vhost-user-test.c
> index a74c934..d2fc048 100644
> --- a/tests/vhost-user-test.c
> +++ b/tests/vhost-user-test.c
> @@ -57,7 +57,7 @@ typedef enum VhostUserRequest {
>      VHOST_USER_GET_FEATURES = 1,
>      VHOST_USER_SET_FEATURES = 2,
>      VHOST_USER_SET_OWNER = 3,
> -    VHOST_USER_RESET_DEVICE = 4,
> +    VHOST_USER_RESET_OWNER = 4,
>      VHOST_USER_SET_MEM_TABLE = 5,
>      VHOST_USER_SET_LOG_BASE = 6,
>      VHOST_USER_SET_LOG_FD = 7,
> @@ -307,7 +307,7 @@ static void chr_read(void *opaque, const uint8_t *buf, int size)
>          g_cond_signal(&s->data_cond);
>          break;
>  
> -    case VHOST_USER_RESET_DEVICE:
> +    case VHOST_USER_RESET_OWNER:
>          s->fds_num = 0;
>          break;
>  
> -- 
> 1.9.0