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SubjectRe: [RFC PATCH v5 11/17] vsock/virtio: support MSG_ZEROCOPY for transport
On Sat, Jul 01, 2023 at 09:39:41AM +0300, Arseniy Krasnov wrote:
>Add 'msgzerocopy_allow()' callback for virtio transport.
>
>Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
>---
> Changelog:
> v4 -> v5:
> * Move 'msgzerocopy_allow' right after seqpacket callbacks.
>
> net/vmw_vsock/virtio_transport.c | 7 +++++++
> 1 file changed, 7 insertions(+)

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>

>
>diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
>index 6cbb45bb12d2..8d3e9f441fa1 100644
>--- a/net/vmw_vsock/virtio_transport.c
>+++ b/net/vmw_vsock/virtio_transport.c
>@@ -441,6 +441,11 @@ 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 = {
>@@ -474,6 +479,8 @@ static struct virtio_transport virtio_transport = {
> .seqpacket_allow = virtio_transport_seqpacket_allow,
> .seqpacket_has_data = virtio_transport_seqpacket_has_data,
>
>+ .msgzerocopy_allow = virtio_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,
>--
>2.25.1
>

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