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vdpa: add get_config_size callback in vdpa_config_ops

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This new callback is used to get the size of the configuration space
of vDPA devices.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20210315163450.254396-9-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
This commit is contained in:
Stefano Garzarella 2021-03-15 17:34:44 +01:00 committed by Michael S. Tsirkin
parent bc433e5e0d
commit 442706f9f9
5 changed files with 33 additions and 0 deletions
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6
drivers/vdpa/ifcvf/ifcvf_main.c
View File

@ -351,6 +351,11 @@ static u32 ifcvf_vdpa_get_vq_align(struct vdpa_device *vdpa_dev)
return IFCVF_QUEUE_ALIGNMENT;
}
static size_t ifcvf_vdpa_get_config_size(struct vdpa_device *vdpa_dev)
{
return sizeof(struct virtio_net_config);
}
static void ifcvf_vdpa_get_config(struct vdpa_device *vdpa_dev,
unsigned int offset,
void *buf, unsigned int len)
@ -411,6 +416,7 @@ static const struct vdpa_config_ops ifc_vdpa_ops = {
.get_device_id = ifcvf_vdpa_get_device_id,
.get_vendor_id = ifcvf_vdpa_get_vendor_id,
.get_vq_align = ifcvf_vdpa_get_vq_align,
.get_config_size = ifcvf_vdpa_get_config_size,
.get_config = ifcvf_vdpa_get_config,
.set_config = ifcvf_vdpa_set_config,
.set_config_cb = ifcvf_vdpa_set_config_cb,

6
drivers/vdpa/mlx5/net/mlx5_vnet.c
View File

@ -1809,6 +1809,11 @@ err_setup:
ndev->mvdev.status |= VIRTIO_CONFIG_S_FAILED;
}
static size_t mlx5_vdpa_get_config_size(struct vdpa_device *vdev)
{
return sizeof(struct virtio_net_config);
}
static void mlx5_vdpa_get_config(struct vdpa_device *vdev, unsigned int offset, void *buf,
unsigned int len)
{
@ -1895,6 +1900,7 @@ static const struct vdpa_config_ops mlx5_vdpa_ops = {
.get_vendor_id = mlx5_vdpa_get_vendor_id,
.get_status = mlx5_vdpa_get_status,
.set_status = mlx5_vdpa_set_status,
.get_config_size = mlx5_vdpa_get_config_size,
.get_config = mlx5_vdpa_get_config,
.set_config = mlx5_vdpa_set_config,
.get_generation = mlx5_vdpa_get_generation,

9
drivers/vdpa/vdpa_sim/vdpa_sim.c
View File

@ -462,6 +462,13 @@ static void vdpasim_set_status(struct vdpa_device *vdpa, u8 status)
spin_unlock(&vdpasim->lock);
}
static size_t vdpasim_get_config_size(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
return vdpasim->dev_attr.config_size;
}
static void vdpasim_get_config(struct vdpa_device *vdpa, unsigned int offset,
void *buf, unsigned int len)
{
@ -598,6 +605,7 @@ static const struct vdpa_config_ops vdpasim_config_ops = {
.get_vendor_id = vdpasim_get_vendor_id,
.get_status = vdpasim_get_status,
.set_status = vdpasim_set_status,
.get_config_size = vdpasim_get_config_size,
.get_config = vdpasim_get_config,
.set_config = vdpasim_set_config,
.get_generation = vdpasim_get_generation,
@ -625,6 +633,7 @@ static const struct vdpa_config_ops vdpasim_batch_config_ops = {
.get_vendor_id = vdpasim_get_vendor_id,
.get_status = vdpasim_get_status,
.set_status = vdpasim_set_status,
.get_config_size = vdpasim_get_config_size,
.get_config = vdpasim_get_config,
.set_config = vdpasim_set_config,
.get_generation = vdpasim_get_generation,

8
drivers/vdpa/virtio_pci/vp_vdpa.c
View File

@ -296,6 +296,13 @@ static u32 vp_vdpa_get_vq_align(struct vdpa_device *vdpa)
return PAGE_SIZE;
}
static size_t vp_vdpa_get_config_size(struct vdpa_device *vdpa)
{
struct virtio_pci_modern_device *mdev = vdpa_to_mdev(vdpa);
return mdev->device_len;
}
static void vp_vdpa_get_config(struct vdpa_device *vdpa,
unsigned int offset,
void *buf, unsigned int len)
@ -369,6 +376,7 @@ static const struct vdpa_config_ops vp_vdpa_ops = {
.get_device_id = vp_vdpa_get_device_id,
.get_vendor_id = vp_vdpa_get_vendor_id,
.get_vq_align = vp_vdpa_get_vq_align,
.get_config_size = vp_vdpa_get_config_size,
.get_config = vp_vdpa_get_config,
.set_config = vp_vdpa_set_config,
.set_config_cb = vp_vdpa_set_config_cb,

4
include/linux/vdpa.h
View File

@ -150,6 +150,9 @@ struct vdpa_iova_range {
* @set_status: Set the device status
* @vdev: vdpa device
* @status: virtio device status
* @get_config_size: Get the size of the configuration space
* @vdev: vdpa device
* Returns size_t: configuration size
* @get_config: Read from device specific configuration space
* @vdev: vdpa device
* @offset: offset from the beginning of
@ -231,6 +234,7 @@ struct vdpa_config_ops {
u32 (*get_vendor_id)(struct vdpa_device *vdev);
u8 (*get_status)(struct vdpa_device *vdev);
void (*set_status)(struct vdpa_device *vdev, u8 status);
size_t (*get_config_size)(struct vdpa_device *vdev);
void (*get_config)(struct vdpa_device *vdev, unsigned int offset,
void *buf, unsigned int len);
void (*set_config)(struct vdpa_device *vdev, unsigned int offset,