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[RFC,v2,09/15] vhost/vsock: support MSG_ZEROCOPY for transport

Message ID 20230423192643.1537470-10-AVKrasnov@sberdevices.ru (mailing list archive)
State RFC
Headers show
Series vsock: MSG_ZEROCOPY flag support | expand

Checks

Context Check Description
netdev/tree_selection success Guessing tree name failed - patch did not apply, async

Commit Message

Arseniy Krasnov April 23, 2023, 7:26 p.m. UTC
Add 'msgzerocopy_allow()' callback for vhost transport.

Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
---
 drivers/vhost/vsock.c | 6 ++++++
 1 file changed, 6 insertions(+)
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Patch

diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 1e70aa390e44..4a33940a6020 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -405,6 +405,11 @@  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 = {
@@ -451,6 +456,7 @@  static struct virtio_transport vhost_transport = {
 		.notify_buffer_size       = virtio_transport_notify_buffer_size,
 
 		.read_skb = virtio_transport_read_skb,
+		.msgzerocopy_allow        = vhost_transport_msgzerocopy_allow,
 	},
 
 	.send_pkt = vhost_transport_send_pkt,