Re: [dpdk-dev] [PATCH v3 0/8] virtio-user: introduce vhost-vdpa backend

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 9/29/20 6:13 PM, Maxime Coquelin wrote:
> vhost-vDPA is a new vhost backend type introduced by vDPA kernel
> framework, which provides abstruction to the vDPA devices and
> exposes to userspace a unified control interface through char devs.
> 
> This patch set adds vhost-vdpa backend type to the virtio_user.
> A set of vhost-vdpa specific ops callbacks are attached to the
> virtio_user according to the runtime dynamic check result of the
> backend type. DMA memory map/unmap callbacks are added to both
> vdev bus driver and virtio_user pmd to support address mapping.
> In addition, minor fixes to existing virtio control path are also
> implemented to make the new backend work.
> 
> This is a collaborative work done with Patrick Fu from Intel and
> Adrian Moreno from Red Hat. Thanks to them for their contributions.
> 
> The series has been tested with vdpasim and Intel IFC Kernel vDPA
> drivers, and more lightly with Mellanox mlx5_vdpa on ConnectX-6 Dx.
> 
> Changes in v3:
> --------------
>  * Fix 32bit builds (CI & Chenbo)
>  * Fix checkpatch
> 
> Changes in v2:
> --------------
>  * Split backend-type patch (Adrian)
>  * Fix get_status size (Chenbo)
>  * Various minro fixes (Chenbo)
> 
> Adrian Moreno (1):
>   net/virtio: move backend type selection to ethdev
> 
> Maxime Coquelin (7):
>   bus/vdev: add DMA mapping ops
>   net/virtio: introduce DMA ops
>   net/virtio: introduce Vhost-vDPA backend type
>   net/virtio: check protocol feature in user backend
>   net/virtio: adapt Virtio-user status size
>   net/virtio: split virtio-user start
>   net/virtio: introduce Vhost-vDPA backend
> 
>  drivers/bus/vdev/rte_bus_vdev.h               |  46 ++-
>  drivers/bus/vdev/vdev.c                       |  52 +++
>  drivers/net/virtio/meson.build                |   1 +
>  drivers/net/virtio/virtio_user/vhost.h        |   5 +
>  drivers/net/virtio/virtio_user/vhost_user.c   |   6 +-
>  drivers/net/virtio/virtio_user/vhost_vdpa.c   | 298 ++++++++++++++++++
>  .../net/virtio/virtio_user/virtio_user_dev.c  | 117 ++++---
>  .../net/virtio/virtio_user/virtio_user_dev.h  |  13 +-
>  drivers/net/virtio/virtio_user_ethdev.c       | 126 +++++++-
>  9 files changed, 607 insertions(+), 57 deletions(-)
>  create mode 100644 drivers/net/virtio/virtio_user/vhost_vdpa.c
> 


Applied to dpdk-next-virtio/main.

Thanks,
Maxime