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SubjectRe: [PATCH V3 3/3] vDPA/ifcvf: get_config_size should return dev specific config size
On Fri, Apr 16, 2021 at 03:16:28PM +0800, Zhu Lingshan wrote:
>get_config_size() should return the size based on the decected
>device type.
>
>Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
>---
> drivers/vdpa/ifcvf/ifcvf_main.c | 19 ++++++++++++++++++-
> 1 file changed, 18 insertions(+), 1 deletion(-)

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

>
>diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c
>index 376b2014916a..3b6f7862dbb8 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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