search for: backend_feature

...f dev->shadow_vqs_enabled at initialization that means the device has >>> + * been started with x-svq=on, so don't block migration >>> + */ >>> + if (dev->migration_blocker == NULL && !v->shadow_vqs_enabled) { >>> + uint64_t backend_features; >>> + >>> + /* We don't have dev->backend_features yet */ >>> + ret = vhost_vdpa_call(dev, VHOST_GET_BACKEND_FEATURES, >>> + &backend_features); >>> + if (unlikely(ret)) { >>> +...

...; #include <netpacket/packet.h> #include <net/ethernet.h> #include <net/if.h> @@ -38,15 +39,6 @@ unsigned vhost_net_get_features(struct v return features; } -void vhost_net_ack_features(struct vhost_net *net, unsigned features) -{ - net->dev.acked_features = net->dev.backend_features; - if (features & (1 << VIRTIO_F_NOTIFY_ON_EMPTY)) - net->dev.acked_features |= (1 << VIRTIO_F_NOTIFY_ON_EMPTY); - if (features & (1 << VIRTIO_RING_F_INDIRECT_DESC)) - net->dev.acked_features |= (1 << VIRTIO_RING_F_INDIRECT_DESC); -} - static int vhost_net_...

...; #include <netpacket/packet.h> #include <net/ethernet.h> #include <net/if.h> @@ -38,15 +39,6 @@ unsigned vhost_net_get_features(struct v return features; } -void vhost_net_ack_features(struct vhost_net *net, unsigned features) -{ - net->dev.acked_features = net->dev.backend_features; - if (features & (1 << VIRTIO_F_NOTIFY_ON_EMPTY)) - net->dev.acked_features |= (1 << VIRTIO_F_NOTIFY_ON_EMPTY); - if (features & (1 << VIRTIO_RING_F_INDIRECT_DESC)) - net->dev.acked_features |= (1 << VIRTIO_RING_F_INDIRECT_DESC); -} - static int vhost_net_...

...features |= VIRTIO_F_NOTIFY_ON_EMPTY; + if (net->dev.features & (1 << VIRTIO_RING_F_INDIRECT_DESC)) + features |= VIRTIO_RING_F_INDIRECT_DESC; + return features; +} + +void vhost_net_ack_features(struct vhost_net *net, unsigned features) +{ + net->dev.acked_features = net->dev.backend_features; + if (features & (1 << VIRTIO_F_NOTIFY_ON_EMPTY)) + net->dev.acked_features |= VIRTIO_F_NOTIFY_ON_EMPTY; + if (features & (1 << VIRTIO_RING_F_INDIRECT_DESC)) + net->dev.acked_features |= VIRTIO_RING_F_INDIRECT_DESC; +} + +static int vhost_net_get_fd(VLANClientState *ba...

...features |= VIRTIO_F_NOTIFY_ON_EMPTY; + if (net->dev.features & (1 << VIRTIO_RING_F_INDIRECT_DESC)) + features |= VIRTIO_RING_F_INDIRECT_DESC; + return features; +} + +void vhost_net_ack_features(struct vhost_net *net, unsigned features) +{ + net->dev.acked_features = net->dev.backend_features; + if (features & (1 << VIRTIO_F_NOTIFY_ON_EMPTY)) + net->dev.acked_features |= VIRTIO_F_NOTIFY_ON_EMPTY; + if (features & (1 << VIRTIO_RING_F_INDIRECT_DESC)) + net->dev.acked_features |= VIRTIO_RING_F_INDIRECT_DESC; +} + +static int vhost_net_get_fd(VLANClientState *ba...

On Thu, Sep 26, 2019 at 12:04:46PM +0800, Jason Wang wrote: > > > > I'm not sure how stable above ops are. > > > It's the kernel internal API, so there's no strict requirement for this. We > > > will export a version value for userspace for compatibility. > > Given it's tied to virtio we probably want kernel+userspace > > feature bits? >

On Thu, Sep 26, 2019 at 12:04:46PM +0800, Jason Wang wrote: > > > > I'm not sure how stable above ops are. > > > It's the kernel internal API, so there's no strict requirement for this. We > > > will export a version value for userspace for compatibility. > > Given it's tied to virtio we probably want kernel+userspace > > feature bits? >

...>> >> Yes, then I think we could probably have a version field inside e.g >> device_ops structure. Then it could be fetched from both kernel and >> userspace driver. >> >> Thanks >> > > my point was feature bits not a version number. Something like backend_feature that current vhost_net did? Thanks >

...109,24 @@ static void vhost_vdpa_svqs_stop(struct vhost_dev *dev) > } > } > > +static void vhost_vdpa_suspend(struct vhost_dev *dev) > +{ > + struct vhost_vdpa *v = dev->opaque; > + int r; > + > + if (!vhost_vdpa_first_dev(dev) || > + !(dev->backend_features & BIT_ULL(VHOST_BACKEND_F_SUSPEND))) { Shouldn't it be backend_cap?

...> > >>> static int vhost_vdpa_net_cvq_start(NetClientState *nc) > > >>> { > > >>> - VhostVDPAState *s; > > >>> + VhostVDPAState *s, *s0; > > >>> struct vhost_vdpa *v; > > >>> uint64_t backend_features; > > >>> int64_t cvq_group; > > >>> @@ -415,8 +465,6 @@ static int vhost_vdpa_net_cvq_start(NetClientState *nc) > > >>> return r; > > >>> } > > >>> > > >>> - v->iova_tree = vhos...

...queue(vdev, 0); + + virtio_cleanup(vdev); + + virtio_rdma_fini_ib(r); +} + +static uint64_t virtio_rdma_get_features(VirtIODevice *vdev, uint64_t features, + Error **errp) +{ + /* virtio_add_feature(&features, VIRTIO_NET_F_MAC); */ + + vdev->backend_features = features; + + return features; +} + + +static Property virtio_rdma_dev_properties[] = { + DEFINE_PROP_STRING("netdev", VirtIORdma, backend_eth_device_name), + DEFINE_PROP_STRING("ibdev",VirtIORdma, backend_device_name), + DEFINE_PROP_UINT8("ibport", Virt...

From: Nicholas Bellinger <nab at linux-iscsi.org> Hi Paolo, Stefan, & QEMU folks, The following is the second RFC series for vhost-scsi patches against mainline QEMU v1.1.0. The series is available from the following working branch: git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge Apologies for the delayed follow-up on this series. The changes detailed

From: Nicholas Bellinger <nab at linux-iscsi.org> Hi Paolo, Stefan, & QEMU folks, The following is the second RFC series for vhost-scsi patches against mainline QEMU v1.1.0. The series is available from the following working branch: git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge Apologies for the delayed follow-up on this series. The changes detailed

From: Nicholas Bellinger <nab at linux-iscsi.org> Hi Anthony + QEMU storage folks, The following is a reviewable RFC series of vhost-scsi against yesterday's QEMU.git/master @ commit 401a66357d. The series is available directly from: git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge It contains the squashed + re-ordered patches from Stefan -> Zhi's

From: Nicholas Bellinger <nab at linux-iscsi.org> Hi Anthony + QEMU storage folks, The following is a reviewable RFC series of vhost-scsi against yesterday's QEMU.git/master @ commit 401a66357d. The series is available directly from: git://git.kernel.org/pub/scm/virt/kvm/nab/qemu-kvm.git vhost-scsi-merge It contains the squashed + re-ordered patches from Stefan -> Zhi's

This is on top of Paolo and Nick's work. Current status: Works now (guest boots fine, no hang any more) with seabios's virtio-scsi disabled. Rebased to latest qemu.org/master Change details are in commit log. TODO: Make seabios happy. Paolo Bonzini (2): virtio-scsi: create VirtIOSCSICommon vhost-scsi: new device supporting the tcm_vhost Linux kernel module hw/Makefile.objs

This is on top of Paolo and Nick's work. Current status: Works now (guest boots fine, no hang any more) with seabios's virtio-scsi disabled. Rebased to latest qemu.org/master Change details are in commit log. TODO: Make seabios happy. Paolo Bonzini (2): virtio-scsi: create VirtIOSCSICommon vhost-scsi: new device supporting the tcm_vhost Linux kernel module hw/Makefile.objs

OK, here's a patch that implements the virtio spec update that I sent earlier. It supercedes the PUBLISH_USED_IDX patches I sent out earlier. Support is added in both userspace and vhost-net. If you see issues or are just curious, you can turn the new feature off. For example: -global virtio-net-pci.event_idx=on -global virtio-blk-pci.event_idx=off Also, it's possible to try both

OK, here's a patch that implements the virtio spec update that I sent earlier. It supercedes the PUBLISH_USED_IDX patches I sent out earlier. Support is added in both userspace and vhost-net. If you see issues or are just curious, you can turn the new feature off. For example: -global virtio-net-pci.event_idx=on -global virtio-blk-pci.event_idx=off Also, it's possible to try both

This is on top of Paolo and Nick's work. Current status: Basically, tcm_vhost + seabios works now. We still have one more issue, vhost_verify_ring_mappings fails. The hotplug also works with the latest tcm_vhost.ko hotplug patch. Asias He (1): disable vhost_verify_ring_mappings check Paolo Bonzini (2): virtio-scsi: create VirtIOSCSICommon vhost-scsi: new device supporting the