Re: [RFC PATCH v4 11/17] vsock/virtio: support MSG_ZEROCOPY for transport

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On Sat, Jun 03, 2023 at 11:49:33PM +0300, Arseniy Krasnov wrote:
Add 'msgzerocopy_allow()' callback for virtio transport.

Signed-off-by: Arseniy Krasnov <AVKrasnov@xxxxxxxxxxxxxx>
---
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 6053d8341091..d9ffa16dda69 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -438,6 +438,11 @@ 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 = {
@@ -484,6 +489,8 @@ static struct virtio_transport virtio_transport = {
		.notify_buffer_size       = virtio_transport_notify_buffer_size,

		.read_skb = virtio_transport_read_skb,
+
+		.msgzerocopy_allow        = virtio_transport_msgzerocopy_allow,

Ditto.

	},

	.send_pkt = virtio_transport_send_pkt,
--
2.25.1





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