diff mbox series

[RFC,v8,10/19] virtio/vsock: defines and constants for SEQPACKET

Message ID 20210413124430.3403036-1-arseny.krasnov@kaspersky.com
State Superseded
Headers show
Series None | expand

Commit Message

Arseny Krasnov April 13, 2021, 12:44 p.m. UTC 
This adds set of defines and constants for SOCK_SEQPACKET
support in vsock.

Signed-off-by: Arseny Krasnov <arseny.krasnov@kaspersky.com>
---
v7 -> v8:
 - Things like SEQ_BEGIN, SEQ_END, 'msg_len' and 'msg_id' now removed.
   Now only last RW packet of each message marked by 'VIRTIO_VSOCK_SEQ_EOR'
   bit in 'flags' field of header.
  

 include/uapi/linux/virtio_vsock.h | 9 +++++++++
 1 file changed, 9 insertions(+)
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Patch

diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
index 1d57ed3d84d2..e035b07afe3e 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));
@@ -65,6 +68,7 @@  struct virtio_vsock_hdr {
 
 enum virtio_vsock_type {
 	VIRTIO_VSOCK_TYPE_STREAM = 1,
+	VIRTIO_VSOCK_TYPE_SEQPACKET = 2,
 };
 
 enum virtio_vsock_op {
@@ -91,4 +95,9 @@  enum virtio_vsock_shutdown {
 	VIRTIO_VSOCK_SHUTDOWN_SEND = 2,
 };
 
+/* VIRTIO_VSOCK_OP_RW flags values */
+enum virtio_vsock_rw {
+	VIRTIO_VSOCK_SEQ_EOR = 1,
+};
+
 #endif /* _UAPI_LINUX_VIRTIO_VSOCK_H */