# \[net-next resend v4 4/7\] tuntap: introduce multiqueue flags

- From: Jason Wang \<hidden\>
- Date: 2012-10-29 06:23:52 
- List: netdev
- Page: https://ratatoskr.run/netdev/2012/10/3947552
- Thread: https://ratatoskr.run/netdev/2012/10/3947548/t.md

```text
Add flags to be used by creating multiqueue tuntap device.

Signed-off-by: Jason Wang <redacted>
---
 include/uapi/linux/if_tun.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 25a585c..8ef3a87 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -34,6 +34,7 @@
 #define TUN_ONE_QUEUE	0x0080
 #define TUN_PERSIST 	0x0100	
 #define TUN_VNET_HDR 	0x0200
+#define TUN_TAP_MQ      0x0400
 
 /* Ioctl defines */
 #define TUNSETNOCSUM  _IOW('T', 200, int) 
@@ -61,6 +62,7 @@
 #define IFF_ONE_QUEUE	0x2000
 #define IFF_VNET_HDR	0x4000
 #define IFF_TUN_EXCL	0x8000
+#define IFF_MULTI_QUEUE 0x0100
 
 /* Features for GSO (TUNSETOFFLOAD). */
 #define TUN_F_CSUM	0x01	/* You can hand me unchecksummed packets. */
-- 
1.7.1
```