diff mbox series

[v1,1/2] vduse: validate block features only with block devices

Message ID 20230627113652.65283-2-maxime.coquelin@redhat.com (mailing list archive)
State Superseded
Headers show
Series vduse: add support for networking devices | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Maxime Coquelin June 27, 2023, 11:36 a.m. UTC
This patch is preliminary work to enable network device
type support to VDUSE.

As VIRTIO_BLK_F_CONFIG_WCE shares the same value as
VIRTIO_NET_F_HOST_TSO4, we need to restrict its check
to Virtio-blk device type.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 drivers/vdpa/vdpa_user/vduse_dev.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

Comments

Jason Wang June 28, 2023, 2:34 a.m. UTC | #1
On Tue, Jun 27, 2023 at 7:37 PM Maxime Coquelin
<maxime.coquelin@redhat.com> wrote:
>
> This patch is preliminary work to enable network device
> type support to VDUSE.
>
> As VIRTIO_BLK_F_CONFIG_WCE shares the same value as
> VIRTIO_NET_F_HOST_TSO4, we need to restrict its check
> to Virtio-blk device type.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>

Acked-by: Jason Wang <jasowang@redhat.com>

Thanks

> ---
>  drivers/vdpa/vdpa_user/vduse_dev.c | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c
> index 5f5c21674fdc..c1c2f4c711ae 100644
> --- a/drivers/vdpa/vdpa_user/vduse_dev.c
> +++ b/drivers/vdpa/vdpa_user/vduse_dev.c
> @@ -1658,13 +1658,14 @@ static bool device_is_allowed(u32 device_id)
>         return false;
>  }
>
> -static bool features_is_valid(u64 features)
> +static bool features_is_valid(struct vduse_dev_config *config)
>  {
> -       if (!(features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
> +       if (!(config->features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
>                 return false;
>
>         /* Now we only support read-only configuration space */
> -       if (features & (1ULL << VIRTIO_BLK_F_CONFIG_WCE))
> +       if ((config->device_id == VIRTIO_ID_BLOCK) &&
> +                       (config->features & (1ULL << VIRTIO_BLK_F_CONFIG_WCE)))
>                 return false;
>
>         return true;
> @@ -1691,7 +1692,7 @@ static bool vduse_validate_config(struct vduse_dev_config *config)
>         if (!device_is_allowed(config->device_id))
>                 return false;
>
> -       if (!features_is_valid(config->features))
> +       if (!features_is_valid(config))
>                 return false;
>
>         return true;
> --
> 2.41.0
>
Yongji Xie July 2, 2023, 7:49 a.m. UTC | #2
On Tue, Jun 27, 2023 at 7:37 PM Maxime Coquelin
<maxime.coquelin@redhat.com> wrote:
>
> This patch is preliminary work to enable network device
> type support to VDUSE.
>
> As VIRTIO_BLK_F_CONFIG_WCE shares the same value as
> VIRTIO_NET_F_HOST_TSO4, we need to restrict its check
> to Virtio-blk device type.
>
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---

Reviewed-by: Xie Yongji <xieyongji@bytedance.com>

Thanks,
Yongji
diff mbox series

Patch

diff --git a/drivers/vdpa/vdpa_user/vduse_dev.c b/drivers/vdpa/vdpa_user/vduse_dev.c
index 5f5c21674fdc..c1c2f4c711ae 100644
--- a/drivers/vdpa/vdpa_user/vduse_dev.c
+++ b/drivers/vdpa/vdpa_user/vduse_dev.c
@@ -1658,13 +1658,14 @@  static bool device_is_allowed(u32 device_id)
 	return false;
 }
 
-static bool features_is_valid(u64 features)
+static bool features_is_valid(struct vduse_dev_config *config)
 {
-	if (!(features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
+	if (!(config->features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
 		return false;
 
 	/* Now we only support read-only configuration space */
-	if (features & (1ULL << VIRTIO_BLK_F_CONFIG_WCE))
+	if ((config->device_id == VIRTIO_ID_BLOCK) &&
+			(config->features & (1ULL << VIRTIO_BLK_F_CONFIG_WCE)))
 		return false;
 
 	return true;
@@ -1691,7 +1692,7 @@  static bool vduse_validate_config(struct vduse_dev_config *config)
 	if (!device_is_allowed(config->device_id))
 		return false;
 
-	if (!features_is_valid(config->features))
+	if (!features_is_valid(config))
 		return false;
 
 	return true;