search for: vhost_backend_f_iotlb_batch

...p 3 when > vDPA device support set_map() ops. This is useful for the vDPA device > that want to know all the mappings to tweak their own DMA translation > logic. > > For vDPA device that doesn't require set_map(), no behavior changes. > > This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/vdpa.c | 30 +++++++++++++++++++++++------- > include/uapi/linux/vhost.h | 2 ++ > include/uapi/linux/vhost_types.h | 7 +++++++ > 3 files changed, 32 insertions...

...p 3 when > vDPA device support set_map() ops. This is useful for the vDPA device > that want to know all the mappings to tweak their own DMA translation > logic. > > For vDPA device that doesn't require set_map(), no behavior changes. > > This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability. > > Signed-off-by: Jason Wang <jasowang at redhat.com> > --- > drivers/vhost/vdpa.c | 30 +++++++++++++++++++++++------- > include/uapi/linux/vhost.h | 2 ++ > include/uapi/linux/vhost_types.h | 7 +++++++ > 3 files changed, 32 insertions...

...ful for the vDPA device > > > that want to know all the mappings to tweak their own DMA translation > > > logic. > > > > > > For vDPA device that doesn't require set_map(), no behavior changes. > > > > > > This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability. > > > > > > Signed-off-by: Jason Wang <jasowang at redhat.com> > > > --- > > > drivers/vhost/vdpa.c | 30 +++++++++++++++++++++++------- > > > include/uapi/linux/vhost.h | 2 ++ > > > include/uapi/linux/...

...tch the IOMMU/IOTLB updating in step 3 when vDPA device support set_map() ops. This is useful for the vDPA device that want to know all the mappings to tweak their own DMA translation logic. For vDPA device that doesn't require set_map(), no behavior changes. This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability. Signed-off-by: Jason Wang <jasowang at redhat.com> --- drivers/vhost/vdpa.c | 30 +++++++++++++++++++++++------- include/uapi/linux/vhost.h | 2 ++ include/uapi/linux/vhost_types.h | 7 +++++++ 3 files changed, 32 insertions(+), 7 deletions(-) diff --git a/d...

...ice support set_map() ops. This is useful for the vDPA device >> that want to know all the mappings to tweak their own DMA translation >> logic. >> >> For vDPA device that doesn't require set_map(), no behavior changes. >> >> This capability is advertised via VHOST_BACKEND_F_IOTLB_BATCH capability. >> >> Signed-off-by: Jason Wang <jasowang at redhat.com> >> --- >> drivers/vhost/vdpa.c | 30 +++++++++++++++++++++++------- >> include/uapi/linux/vhost.h | 2 ++ >> include/uapi/linux/vhost_types.h | 7 +++++++ >>...

Hi all: This series tries to support batched IOTLB updating vhost-vdpa. Currently vhost-vdpa accepts userspace mapping via IOTLB API, and it can only forward one mapping to IOMMU or device through IOMMU API or dma_map(). Though set_map() is deisgend to have the capability to pass an rbtree based mapping to vDPA device, it's still be called at least once for each VHOST_IOTLB_UPDATE or

Hi all: This series tries to support batched IOTLB updating vhost-vdpa. Currently vhost-vdpa accepts userspace mapping via IOTLB API, and it can only forward one mapping to IOMMU or device through IOMMU API or dma_map(). Though set_map() is designed to have the capability to pass an rbtree based mapping to vDPA device, it's still be called at least once for each VHOST_IOTLB_UPDATE or

Hi All: This series tries to add the support for control virtqueue in vDPA. Control virtqueue is used by networking device for accepting various commands from the driver. It's a must to support multiqueue and other configurations. When used by vhost-vDPA bus driver for VM, the control virtqueue should be shadowed via userspace VMM (Qemu) instead of being assigned directly to Guest. This is

Hi All: This series tries to add the support for control virtqueue in vDPA. Control virtqueue is used by networking device for accepting various commands from the driver. It's a must to support multiqueue and other configurations. When used by vhost-vDPA bus driver for VM, the control virtqueue should be shadowed via userspace VMM (Qemu) instead of being assigned directly to Guest. This is