[PATCH v5 2/6] uapi/linux/if_tun.h: Added new offload types for USO4/6.

From: Andrew Melnychenko
Date: Wed Dec 07 2022 - 06:51:45 EST


Added 2 additional offlloads for USO(IPv4 & IPv6).
Separate offloads are required for Windows VM guests,
g.e. Windows may set USO rx only for IPv4.

Signed-off-by: Andrew Melnychenko <andrew@xxxxxxxxxx>
---
include/uapi/linux/if_tun.h | 2 ++
1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index b6d7b868f290..287cdc81c939 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -90,6 +90,8 @@
#define TUN_F_TSO6 0x04 /* I can handle TSO for IPv6 packets */
#define TUN_F_TSO_ECN 0x08 /* I can handle TSO with ECN bits. */
#define TUN_F_UFO 0x10 /* I can handle UFO packets */
+#define TUN_F_USO4 0x20 /* I can handle USO for IPv4 packets */
+#define TUN_F_USO6 0x40 /* I can handle USO for IPv6 packets */

/* Protocol info prepended to the packets (when IFF_NO_PI is not set) */
#define TUN_PKT_STRIP 0x0001
--
2.38.1