search for: actual_features

...; print_features(mvdev, features, true); > >> @@ -2334,7 +2439,11 @@ static int mlx5_vdpa_set_driver_features(struct vdpa_device *vdev, u64 features) > >> if (err) > >> return err; > >> > >> + old = ndev->mvdev.actual_features; > >> ndev->mvdev.actual_features = features & ndev->mvdev.mlx_features; > >> + if (~old & ndev->mvdev.actual_features & BIT_ULL(VIRTIO_NET_F_STATUS)) > >> + register_link_notifier(ndev); > >> + > > I still...

...dpa_ndev(mvdev); > + u64 cur_features; > int err; > > print_features(mvdev, features, true); > @@ -2310,7 +2362,11 @@ static int mlx5_vdpa_set_driver_features(struct vdpa_device *vdev, u64 features) > if (err) > return err; > > + cur_features = ndev->mvdev.actual_features; > ndev->mvdev.actual_features = features & ndev->mvdev.mlx_features; > + if (f_status_was_set(cur_features, ndev->mvdev.actual_features)) > + update_link_state(mvdev); > + > if (ndev->mvdev.actual_features & BIT_ULL(VIRTIO_NET_F_MQ)) > ndev->rqt_siz...

...ources(struct mlx5_vdpa_net *ndev); @@ -1506,6 +1507,13 @@ static void teardown_virtqueues(struct mlx5_vdpa_net *ndev) } } +/* TODO: cross-endian support */ +static inline bool mlx5_vdpa_is_little_endian(struct mlx5_vdpa_dev *mvdev) +{ + return virtio_legacy_is_little_endian() || + (mvdev->actual_features & (1ULL << VIRTIO_F_VERSION_1)); +} + static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features) { struct mlx5_vdpa_dev *mvdev = to_mvdev(vdev); @@ -1519,6 +1527,8 @@ static int mlx5_vdpa_set_features(struct vdpa_device *vdev, u64 features) return err; ndev->m...

...obj_context; > + u16 mlx_features; > void *cmd_hdr; > void *vq_ctx; > void *in; > @@ -812,6 +829,7 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtque > goto err_alloc; > } > > + mlx_features = get_features(ndev->mvdev.actual_features); > cmd_hdr = MLX5_ADDR_OF(create_virtio_net_q_in, in, general_obj_in_cmd_hdr); > > MLX5_SET(general_obj_in_cmd_hdr, cmd_hdr, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT); > @@ -822,7 +840,9 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtque >...

...s; > void *cmd_hdr; > void *vq_ctx; > void *in; > @@ -812,6 +833,7 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtque > goto err_alloc; > } > > + mlx_features = get_features(ndev->mvdev.actual_features); > cmd_hdr = MLX5_ADDR_OF(create_virtio_net_q_in, in, general_obj_in_cmd_hdr); > > MLX5_SET(general_obj_in_cmd_hdr, cmd_hdr, opcode, MLX5_CMD_OP_CREATE_GENERAL_OBJECT); > @@ -822,7 +844,9 @@ static int create_virtqueue(struct mlx5_vdpa_net *ndev, struct mlx5_vdpa_virtqu...

...t/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c > index 520646ae7fa0..dfd0e000217b 100644 > --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c > +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c > @@ -2537,7 +2537,7 @@ static int setup_cvq_vring(struct mlx5_vdpa_dev *mvdev) > > if (mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)) > err = vringh_init_iotlb(&cvq->vring, mvdev->actual_features, > - MLX5_CVQ_MAX_ENT, false, > + MLX5_CVQ_MAX_ENT, false, false, To avoid those changes...

...diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c index 520646ae7fa0..dfd0e000217b 100644 --- a/drivers/vdpa/mlx5/net/mlx5_vnet.c +++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c @@ -2537,7 +2537,7 @@ static int setup_cvq_vring(struct mlx5_vdpa_dev *mvdev) if (mvdev->actual_features & BIT_ULL(VIRTIO_NET_F_CTRL_VQ)) err = vringh_init_iotlb(&cvq->vring, mvdev->actual_features, - MLX5_CVQ_MAX_ENT, false, + MLX5_CVQ_MAX_ENT, false, false, (struct vring_desc *)(uintptr_t)cvq->desc_addr, (struct vring_avail *)(uintptr_t)cvq->driver_addr,...

This series adds support for the use of user virtual addresses in the vDPA simulator devices. The main reason for this change is to lift the pinning of all guest memory. Especially with virtio devices implemented in software. The next step would be to generalize the code in vdpa-sim to allow the implementation of in-kernel software devices. Similar to vhost, but using vDPA so we can reuse the

...uid); > + > + obj_context = MLX5_ADDR_OF(create_virtio_net_q_in, in, obj_context); > + MLX5_SET(virtio_net_q_object, obj_context, hw_available_index, mvq->avail_idx); > + MLX5_SET(virtio_net_q_object, obj_context, queue_feature_bit_mask_12_3, > + get_features_12_3(ndev->mvdev.actual_features)); > + vq_ctx = MLX5_ADDR_OF(virtio_net_q_object, obj_context, virtio_q_context); > + MLX5_SET(virtio_q, vq_ctx, virtio_q_type, get_queue_type(ndev)); > + > + if (vq_is_tx(mvq->index)) > + MLX5_SET(virtio_net_q_object, obj_context, tisn_or_qpn, ndev->res.tisn); > + > + M...

v2: - rebased on Linus' tree, commit ae3419fbac84 ("vc_screen: don't clobber return value in vcs_read") - removed `struct task_struct *owner` param (unused for now, maybe ?useful to support cgroups) [Jason] - add unbind_mm callback [Jason] - call the new unbind_mm callback during the release [Jason] - avoid to call bind_mm callback after the reset, since the device ?is not

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA:

This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA: