On Tue, Apr 21, 2020 at 11:54 PM Laurent Vivier <lviv...@redhat.com> wrote: > > On 20/04/2020 11:32, Cindy Lu wrote: > > Currently we have 2 types of vhost backends in QEMU: vhost kernel and > > vhost-user. The above patch provides a generic device for vDPA purpose, > > this vDPA device exposes to user space a non-vendor-specific configuration > > interface for setting up a vhost HW accelerator, this patch set introduces > > a third vhost backend called vhost-vdpa based on the vDPA interface. > > > > Vhost-vdpa usage: > > > > qemu-system-x86_64 -cpu host -enable-kvm \ > > ...... > > -netdev type=vhost-vdpa,vhostdev=/dev/vhost-vdpa-id,id=vhost-vdpa0 \ > > -device virtio-net-pci,netdev=vhost-vdpa0,page-per-vq=on \ > > > > Author: Tiwei Bie > > Use "git commit --author" to set that. Thanks, I will fix this
> > Signed-off-by: Cindy Lu <l...@redhat.com> > > --- > > hw/net/vhost_net.c | 43 ++++ > > hw/net/virtio-net.c | 9 + > > hw/virtio/Makefile.objs | 2 +- > > hw/virtio/vhost-backend.c | 3 + > > hw/virtio/vhost-vdpa.c | 379 ++++++++++++++++++++++++++++++ > > hw/virtio/vhost.c | 5 + > > include/hw/virtio/vhost-backend.h | 6 +- > > include/hw/virtio/vhost-vdpa.h | 14 ++ > > 8 files changed, 459 insertions(+), 2 deletions(-) > > create mode 100644 hw/virtio/vhost-vdpa.c > > create mode 100644 include/hw/virtio/vhost-vdpa.h > > > > diff --git a/hw/net/vhost_net.c b/hw/net/vhost_net.c > > index 4096d64aaf..0d13fda2fc 100644 > > --- a/hw/net/vhost_net.c > > +++ b/hw/net/vhost_net.c > ... > > @@ -434,6 +462,10 @@ VHostNetState *get_vhost_net(NetClientState *nc) > > assert(vhost_net); > > break; > > #endif > > + case NET_CLIENT_DRIVER_VHOST_VDPA: > > + vhost_net = vhost_vdpa_get_vhost_net(nc); > > + assert(vhost_net); > > + break; > > This should be inside a "#ifdef". > Thanks Laurent, I will add a new macro for vDPA > Thanks, > Laurent >