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[RFC,v7,20/22] virtio/vsock: SEQPACKET feature bit support

Message ID 20210323131505.2462107-1-arseny.krasnov@kaspersky.com
State New
Headers show
Series virtio/vsock: introduce SOCK_SEQPACKET support | expand

Commit Message

Arseny Krasnov March 23, 2021, 1:15 p.m. UTC 
This adds handling of SEQPACKET bit: guest tries to negotiate it
with vhost.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
---
 net/vmw_vsock/virtio_transport.c | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index 83ae2078c847..ee99bd919a12 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -624,6 +624,10 @@  static int virtio_vsock_probe(struct virtio_device *vdev)
 	rcu_assign_pointer(the_virtio_vsock, vsock);
 
 	mutex_unlock(&the_virtio_vsock_mutex);
+
+	if (vdev->features & (1ULL << VIRTIO_VSOCK_F_SEQPACKET))
+		virtio_transport.seqpacket_allow = true;
+
 	return 0;
 
 out:
@@ -707,6 +711,7 @@  static struct virtio_device_id id_table[] = {
 };
 
 static unsigned int features[] = {
+	VIRTIO_VSOCK_F_SEQPACKET
 };
 
 static struct virtio_driver virtio_vsock_driver = {