Re: [Qemu-devel] [PATCH v5] virtio dataplane: adapt dataplane for virtio Version 1

[Stefan Hajnoczi <stefanha@gmail.com>]

On Mon, Sep 07, 2015 at 01:33:56PM +0200, Pierre Morel wrote:
> Let dataplane allocate different region for the desc/avail/used
> ring regions.
> Take VIRTIO_RING_F_EVENT_IDX into account to increase the used/avail
> rings accordingly.
> 
> Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
> (changed __virtio16 into uint16_t,
>  map descriptor table and available ring read-only)
> Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
> ---
> 
> Changes from V4:
> - added comments for VIRTIO_RING_F_EVENT_IDX and mapping
> - use uint16_t as in ring definitions instead of __virtio16
> - map descriptor table and available ring read-only
> 
> Changes from V3:
> - added changelog
> 
> Changes from V2:
> - incorporate the code directly in vring_setup().
> - added room for the event indexes used with VIRTIO_RING_F_EVENT_IDX
> 
> Changes from v1:
> - use a macro to gain LOCs inside of vring_setup()
> 
>  hw/virtio/dataplane/vring.c         | 66 +++++++++++++++++++++++++++++--------
>  include/hw/virtio/dataplane/vring.h |  4 ++-
>  2 files changed, 55 insertions(+), 15 deletions(-)

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan