[PATCH v5 3/4] vduse: enable Virtio-net device type

[Maxime Coquelin]

This patch adds Virtio-net device type to the supported
devices types. Initialization fails if the device does
not support VIRTIO_F_VERSION_1 feature, in order to
guarantee the configuration space is read-only.

Acked-by: Jason Wang <jasow...@redhat.com>
Reviewed-by: Xie Yongji <xieyon...@bytedance.com>
Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
---
 drivers/vdpa/vdpa_user/vduse_dev.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c 
b/drivers/vdpa/vdpa_user/vduse_dev.c
index fe4b5c8203fd..fa62825be378 100644
--- a/drivers/vdpa/vdpa_user/vduse_dev.c
+++ b/drivers/vdpa/vdpa_user/vduse_dev.c
@@ -166,6 +166,7 @@ static struct workqueue_struct *vduse_irq_bound_wq;
 
 static u32 allowed_device_id[] = {
        VIRTIO_ID_BLOCK,
+       VIRTIO_ID_NET,
 };
 
 static inline struct vduse_dev *vdpa_to_vduse(struct vdpa_device *vdpa)
@@ -1706,6 +1707,10 @@ static bool features_is_valid(struct vduse_dev_config 
*config)
                        (config->features & (1ULL << VIRTIO_BLK_F_CONFIG_WCE)))
                return false;
 
+       if ((config->device_id == VIRTIO_ID_NET) &&
+                       !(config->features & (1ULL << VIRTIO_F_VERSION_1)))
+               return false;
+
        return true;
 }
 
@@ -2068,6 +2073,7 @@ static const struct vdpa_mgmtdev_ops vdpa_dev_mgmtdev_ops 
= {
 
 static struct virtio_device_id id_table[] = {
        { VIRTIO_ID_BLOCK, VIRTIO_DEV_ANY_ID },
+       { VIRTIO_ID_NET, VIRTIO_DEV_ANY_ID },
        { 0 },
 };
 
-- 
2.43.0