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Message-ID: <e324f3f4-261f-52e4-4907-8344cae209c2@sberdevices.ru>
Date: Mon, 6 Feb 2023 07:01:31 +0000
From: Arseniy Krasnov <AVKrasnov@...rdevices.ru>
To: Stefan Hajnoczi <stefanha@...hat.com>,
Stefano Garzarella <sgarzare@...hat.com>,
"Michael S. Tsirkin" <mst@...hat.com>,
Jason Wang <jasowang@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Arseniy Krasnov <AVKrasnov@...rdevices.ru>,
"Krasnov Arseniy" <oxffffaa@...il.com>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
"virtualization@...ts.linux-foundation.org"
<virtualization@...ts.linux-foundation.org>,
"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
kernel <kernel@...rdevices.ru>
Subject: [RFC PATCH v1 08/12] vhost/vsock: support MSG_ZEROCOPY for transport
Signed-off-by: Arseniy Krasnov <AVKrasnov@...rdevices.ru>
---
drivers/vhost/vsock.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 60b9cafa3e31..afaa80203528 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -440,6 +440,11 @@ static bool vhost_vsock_more_replies(struct vhost_vsock *vsock)
return val < vq->num;
}
+static bool vhost_transport_msgzerocopy_allow(void)
+{
+ return true;
+}
+
static bool vhost_transport_seqpacket_allow(u32 remote_cid);
static struct virtio_transport vhost_transport = {
@@ -485,6 +490,7 @@ static struct virtio_transport vhost_transport = {
.notify_send_post_enqueue = virtio_transport_notify_send_post_enqueue,
.notify_buffer_size = virtio_transport_notify_buffer_size,
+ .msgzerocopy_allow = vhost_transport_msgzerocopy_allow,
},
.send_pkt = vhost_transport_send_pkt,
--
2.25.1
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