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    Subject[PATCH V4 3/3] vDPA/ifcvf: get_config_size should return dev specific config size
    Date
    get_config_size() should return the size based on the decected
    device type.

    Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
    Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
    Acked-by: Jason Wang <jasowang@redhat.com>
    ---
    drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++++++++++++++++++-
    1 file changed, 18 insertions(+), 1 deletion(-)

    diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
    index 9a4a6df91f08..e48e6b74fe2e 100644
    --- a/drivers/vdpa/ifcvf/ifcvf_main.c
    +++ b/drivers/vdpa/ifcvf/ifcvf_main.c
    @@ -356,7 +356,24 @@ static u32 ifcvf_vdpa_get_vq_align(struct vdpa_device *vdpa_dev)

    static size_t ifcvf_vdpa_get_config_size(struct vdpa_device *vdpa_dev)
    {
    - return sizeof(struct virtio_net_config);
    + struct ifcvf_adapter *adapter = vdpa_to_adapter(vdpa_dev);
    + struct ifcvf_hw *vf = vdpa_to_vf(vdpa_dev);
    + struct pci_dev *pdev = adapter->pdev;
    + size_t size;
    +
    + switch (vf->dev_type) {
    + case VIRTIO_ID_NET:
    + size = sizeof(struct virtio_net_config);
    + break;
    + case VIRTIO_ID_BLOCK:
    + size = sizeof(struct virtio_blk_config);
    + break;
    + default:
    + size = 0;
    + IFCVF_ERR(pdev, "VIRTIO ID %u not supported\n", vf->dev_type);
    + }
    +
    + return size;
    }

    static void ifcvf_vdpa_get_config(struct vdpa_device *vdpa_dev,
    --
    2.27.0
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