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vhost/vsock: support MSG_ZEROCOPY for transport 

Add 'msgzerocopy_allow()' callback for vhost transport.

Signed-off-by: Arseniy Krasnov <avkrasnov@salutedevices.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arseniy Krasnov 2023-10-10 22:15:17 +03:00 committed by David S. Miller
parent dcc55d7bb2
commit 3719c48d9a
1 changed files with 7 additions and 0 deletions
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7
drivers/vhost/vsock.c
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@ -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,