[RFC,v1,09/12] vsock/virtio: support MSG_ZEROCOPY for transport

Commit Message

Arseniy Krasnov Feb. 6, 2023, 7:02 a.m. UTC

Signed-off-by: Arseniy Krasnov <[e-mail]>
---
 net/vmw_vsock/virtio_transport.c | 7 +++++++
 1 file changed, 7 insertions(+)

Patch

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,