2023-07-05 10:19:10

by Maxime Coquelin

[permalink] [raw]
Subject: [PATCH v3 2/3] vduse: enable Virtio-net device type

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 <[email protected]>
Reviewed-by: Xie Yongji <[email protected]>
Signed-off-by: Maxime Coquelin <[email protected]>
---
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 ff9fdd6783fe..1271c9796517 100644
--- a/drivers/vdpa/vdpa_user/vduse_dev.c
+++ b/drivers/vdpa/vdpa_user/vduse_dev.c
@@ -142,6 +142,7 @@ 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)
@@ -1672,6 +1673,10 @@ 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;
}

@@ -2027,6 +2032,7 @@ 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 },
};

--
2.41.0