From 3719c48d9a2082773c38564dea3fa7b30a69a479 Mon Sep 17 00:00:00 2001 From: Arseniy Krasnov Date: Tue, 10 Oct 2023 22:15:17 +0300 Subject: [PATCH] vhost/vsock: support MSG_ZEROCOPY for transport Add 'msgzerocopy_allow()' callback for vhost transport. Signed-off-by: Arseniy Krasnov Reviewed-by: Stefano Garzarella Signed-off-by: David S. Miller --- drivers/vhost/vsock.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 83711aad855c..f75731396b7e 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -398,6 +398,11 @@ 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 = { @@ -431,6 +436,8 @@ static struct virtio_transport vhost_transport = { .seqpacket_allow = vhost_transport_seqpacket_allow, .seqpacket_has_data = virtio_transport_seqpacket_has_data, + .msgzerocopy_allow = vhost_transport_msgzerocopy_allow, + .notify_poll_in = virtio_transport_notify_poll_in, .notify_poll_out = virtio_transport_notify_poll_out, .notify_recv_init = virtio_transport_notify_recv_init,