[RFC PATCH v6 15/22] virtio/vsock: SEQPACKET support feature bit

[Arseny Krasnov <arseny.krasnov@kaspersky.com>]

This adds new virtio vsock specific feature bit which means
SOCK_SEQPACKET support. Guest negotiates this bit with vhost,
thus checking that vhost side supports SEQPACKET.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
---
 include/uapi/linux/virtio_vsock.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
index 692f8078cced..619aaebb355a 100644
--- a/include/uapi/linux/virtio_vsock.h
+++ b/include/uapi/linux/virtio_vsock.h
@@ -38,6 +38,9 @@
 #include <linux/virtio_ids.h>
 #include <linux/virtio_config.h>
 
+/* The feature bitmap for virtio vsock */
+#define VIRTIO_VSOCK_F_SEQPACKET	0	/* SOCK_SEQPACKET supported */
+
 struct virtio_vsock_config {
 	__le64 guest_cid;
 } __attribute__((packed));
-- 
2.25.1