Re: [RFC PATCH v8 11/21] vhost: Update kernel headers

[Eugenio Perez Martin]

On Wed, Jun 8, 2022 at 6:19 AM Jason Wang <jasowang@redhat.com> wrote:
>
>
> 在 2022/5/20 03:12, Eugenio Pérez 写道:
> > Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
> > ---
>
>
> It's better to use the helpers in scripts/ and mentioned to which
> version is this synced.
>

Right, I should have written somewhere this was in the meantime it was
accepted in Linux master :). I'll use the scripts for the next
version.

Thanks!

> Thanks
>
>
> >   include/standard-headers/linux/vhost_types.h | 11 ++++++++-
> >   linux-headers/linux/vhost.h                  | 25 ++++++++++++++++----
> >   2 files changed, 30 insertions(+), 6 deletions(-)
> >
> > diff --git a/include/standard-headers/linux/vhost_types.h 
> > b/include/standard-headers/linux/vhost_types.h
> > index 0bd2684a2a..ce78551b0f 100644
> > --- a/include/standard-headers/linux/vhost_types.h
> > +++ b/include/standard-headers/linux/vhost_types.h
> > @@ -87,7 +87,7 @@ struct vhost_msg {
> >
> >   struct vhost_msg_v2 {
> >       uint32_t type;
> > -     uint32_t reserved;
> > +     uint32_t asid;
> >       union {
> >               struct vhost_iotlb_msg iotlb;
> >               uint8_t padding[64];
> > @@ -153,4 +153,13 @@ struct vhost_vdpa_iova_range {
> >   /* vhost-net should add virtio_net_hdr for RX, and strip for TX packets. 
> > */
> >   #define VHOST_NET_F_VIRTIO_NET_HDR 27
> >
> > +/* Use message type V2 */
> > +#define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1
> > +/* IOTLB can accept batching hints */
> > +#define VHOST_BACKEND_F_IOTLB_BATCH  0x2
> > +/* IOTLB can accept address space identifier through V2 type of IOTLB
> > + * message
> > + */
> > +#define VHOST_BACKEND_F_IOTLB_ASID  0x3
> > +
> >   #endif
> > diff --git a/linux-headers/linux/vhost.h b/linux-headers/linux/vhost.h
> > index 5d99e7c242..d42eb46efd 100644
> > --- a/linux-headers/linux/vhost.h
> > +++ b/linux-headers/linux/vhost.h
> > @@ -89,11 +89,6 @@
> >
> >   /* Set or get vhost backend capability */
> >
> > -/* Use message type V2 */
> > -#define VHOST_BACKEND_F_IOTLB_MSG_V2 0x1
> > -/* IOTLB can accept batching hints */
> > -#define VHOST_BACKEND_F_IOTLB_BATCH  0x2
> > -
> >   #define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64)
> >   #define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64)
> >
> > @@ -154,6 +149,26 @@
> >   /* Get the config size */
> >   #define VHOST_VDPA_GET_CONFIG_SIZE  _IOR(VHOST_VIRTIO, 0x79, __u32)
> >
> > +/* Get the number of virtqueue groups. */
> > +#define VHOST_VDPA_GET_GROUP_NUM     _IOR(VHOST_VIRTIO, 0x7A, unsigned int)
> > +
> > +/* Get the number of address spaces. */
> > +#define VHOST_VDPA_GET_AS_NUM                _IOR(VHOST_VIRTIO, 0x7B, 
> > unsigned int)
> > +
> > +/* Get the group for a virtqueue: read index, write group in num,
> > + * The virtqueue index is stored in the index field of
> > + * vhost_vring_state. The group for this specific virtqueue is
> > + * returned via num field of vhost_vring_state.
> > + */
> > +#define VHOST_VDPA_GET_VRING_GROUP   _IOWR(VHOST_VIRTIO, 0x7C,       \
> > +                                           struct vhost_vring_state)
> > +/* Set the ASID for a virtqueue group. The group index is stored in
> > + * the index field of vhost_vring_state, the ASID associated with this
> > + * group is stored at num field of vhost_vring_state.
> > + */
> > +#define VHOST_VDPA_SET_GROUP_ASID    _IOW(VHOST_VIRTIO, 0x7D, \
> > +                                          struct vhost_vring_state)
> > +
> >   /* Get the count of all virtqueues */
> >   #define VHOST_VDPA_GET_VQS_COUNT    _IOR(VHOST_VIRTIO, 0x80, __u32)
> >
>