Re: [RFC PATCH v5 10/17] vhost/vsock: support MSG_ZEROCOPY for transport
From: Stefano Garzarella <sgarzare@redhat.com>
Date: 2023-07-06 16:56:48
Also in:
kvm, lkml, virtualization
On Sat, Jul 01, 2023 at 09:39:40AM +0300, Arseniy Krasnov wrote:
Add 'msgzerocopy_allow()' callback for vhost transport. Signed-off-by: Arseniy Krasnov <redacted> --- Changelog: v4 -> v5: * Move 'msgzerocopy_allow' right after seqpacket callbacks. drivers/vhost/vsock.c | 7 +++++++ 1 file changed, 7 insertions(+)
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
quoted hunk ↗ jump to hunk
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index cb00e0e059e4..3fd0ab0c0edc 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, -- 2.25.1