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authorStefano Garzarella <sgarzare@redhat.com>2021-03-15 19:34:44 +0300
committerMichael S. Tsirkin <mst@redhat.com>2021-05-03 11:55:53 +0300
commit442706f9f94d28fe3c9f188ae4ebbd6b40addffe (patch)
tree27fbf1922674767f6d4f0b63486b9c6c3f85e940 /drivers/vdpa
parentbc433e5e0d42d7892dcefb65686c9f1df126923a (diff)
downloadlinux-442706f9f94d28fe3c9f188ae4ebbd6b40addffe.tar.xz
vdpa: add get_config_size callback in vdpa_config_ops
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>
Diffstat (limited to 'drivers/vdpa')
-rw-r--r--drivers/vdpa/ifcvf/ifcvf_main.c6
-rw-r--r--drivers/vdpa/mlx5/net/mlx5_vnet.c6
-rw-r--r--drivers/vdpa/vdpa_sim/vdpa_sim.c9
-rw-r--r--drivers/vdpa/virtio_pci/vp_vdpa.c8
4 files changed, 29 insertions, 0 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
index a16753f1de5b..44d7586019da 100644
--- a/drivers/vdpa/ifcvf/ifcvf_main.c
+++ b/drivers/vdpa/ifcvf/ifcvf_main.c
@@ -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,
diff --git a/drivers/vdpa/mlx5/net/mlx5_vnet.c b/drivers/vdpa/mlx5/net/mlx5_vnet.c
index 25533db01f5f..189e4385df40 100644
--- a/drivers/vdpa/mlx5/net/mlx5_vnet.c
+++ b/drivers/vdpa/mlx5/net/mlx5_vnet.c
@@ -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,
diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 14dc2d3d983e..98f793bc9376 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -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,
diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c
index 002b928d0ca1..c76ebb531212 100644
--- a/drivers/vdpa/virtio_pci/vp_vdpa.c
+++ b/drivers/vdpa/virtio_pci/vp_vdpa.c
@@ -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,