Thread (31 messages) 31 messages, 2 authors, 2023-02-28
STALE1197d
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[RFC PATCH v1 09/12] vsock/virtio: support MSG_ZEROCOPY for transport

From: Arseniy Krasnov <hidden>
Date: 2023-02-06 07:02:48
Also in: kvm, lkml
Subsystem: networking [general], the rest, virtio and vhost vsock driver, virtio core, vm sockets (af_vsock) · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Stefan Hajnoczi, Stefano Garzarella, "Michael S. Tsirkin", Jason Wang

Signed-off-by: Arseniy Krasnov <redacted>
---
 net/vmw_vsock/virtio_transport.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index b8a7d6dc9f46..4c5f19015df7 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -432,6 +432,11 @@ static void virtio_vsock_rx_done(struct virtqueue *vq)
 	queue_work(virtio_vsock_workqueue, &vsock->rx_work);
 }
 
+static bool virtio_transport_msgzerocopy_allow(void)
+{
+	return true;
+}
+
 static bool virtio_transport_seqpacket_allow(u32 remote_cid);
 
 static struct virtio_transport virtio_transport = {
@@ -476,6 +481,8 @@ static struct virtio_transport virtio_transport = {
 		.notify_send_pre_enqueue  = virtio_transport_notify_send_pre_enqueue,
 		.notify_send_post_enqueue = virtio_transport_notify_send_post_enqueue,
 		.notify_buffer_size       = virtio_transport_notify_buffer_size,
+
+		.msgzerocopy_allow        = virtio_transport_msgzerocopy_allow,
 	},
 
 	.send_pkt = virtio_transport_send_pkt,
-- 
2.25.1
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