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[80.230.34.155]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48317d345c2sm391883135e9.6.2026.02.08.09.32.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Feb 2026 09:32:14 -0800 (PST) Date: Sun, 8 Feb 2026 12:32:11 -0500 From: "Michael S. Tsirkin" To: Cindy Lu Cc: jasowang@redhat.com, kvm@vger.kernel.org, virtualization@lists.linux.dev, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [RFC 1/3] uapi: vhost: add vhost-net netfilter offload API Message-ID: <20260208123029-mutt-send-email-mst@kernel.org> References: <20260208143441.2177372-1-lulu@redhat.com> <20260208143441.2177372-2-lulu@redhat.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 In-Reply-To: <20260208143441.2177372-2-lulu@redhat.com> X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: x4CAE0SJUsOPFDRImuIi_gjyb2w24Xj7jYUmqgu9cTM_1770571935 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Sun, Feb 08, 2026 at 10:32:22PM +0800, Cindy Lu wrote: > Add VHOST_NET_SET_FILTER ioctl and the filter socket protocol used for > vhost-net filter offload. > > Signed-off-by: Cindy Lu > --- > 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