Re: [RFC 1/3] uapi: vhost: add vhost-net netfilter offload API
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: 2026-02-08 17:32:18
Also in:
kvm, lkml, virtualization
On Sun, Feb 08, 2026 at 10:32:22PM +0800, Cindy Lu wrote:
quoted hunk ↗ jump to hunk
Add VHOST_NET_SET_FILTER ioctl and the filter socket protocol used for vhost-net filter offload. Signed-off-by: Cindy Lu <redacted> --- include/uapi/linux/vhost.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index c57674a6aa0d..d9a0ca7a3df0 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h@@ -131,6 +131,26 @@ * device. This can be used to stop the ring (e.g. for migration). */ #define VHOST_NET_SET_BACKEND _IOW(VHOST_VIRTIO, 0x30, struct vhost_vring_file) +/* VHOST_NET filter offload (kernel vhost-net dataplane through QEMU netfilter) */ +struct vhost_net_filter { + __s32 fd; +}; + +enum { + VHOST_NET_FILTER_MSG_REQUEST = 1, +}; + +#define VHOST_NET_FILTER_DIRECTION_TX 1 + +struct vhost_net_filter_msg { + __u16 type; + __u16 direction; + __u32 len; +}; + + +#define VHOST_NET_SET_FILTER _IOW(VHOST_VIRTIO, 0x31, struct vhost_net_filter) + /* VHOST_SCSI specific defines */
can we get some info on what this is supposed to be doing, pls? it belongs here where userspace devs can find it, not hidden in code.
#define VHOST_SCSI_SET_ENDPOINT _IOW(VHOST_VIRTIO, 0x40, struct vhost_scsi_target) -- 2.52.0