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authorJason Wang <jasowang@redhat.com>2013-01-30 19:12:29 +0800
committerAnthony Liguori <aliguori@us.ibm.com>2013-02-01 11:03:01 -0600
commit4e4f9ae7da90b55fe77307e58c867aa6b02a7384 (patch)
treee5c1ce1edd9b31fe5dbf44f7c6ae0cca2bac0033 /net
parent1ceef9f27359cbe92ef124bf74de6f792e71f6fb (diff)
tap: import linux multiqueue constants
Import multiqueue constants from if_tun.h from 3.8-rc3. A new ifr flag IFF_MULTI_QUEUE were introduced to create a multiqueue backend by calling TUNSETIFF with the this flag and with the same interface name many times. A new ioctl TUNSETQUEUE were introduced. When doing this ioctl with IFF_DETACH_QUEUE, the queue were disabled in the linux kernel. When doing this ioctl with IFF_ATTACH_QUEUE, the queue were enabled in the linux kernel. Signed-off-by: Jason Wang <jasowang@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'net')
-rw-r--r--net/tap-linux.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/tap-linux.h b/net/tap-linux.h
index cb2a6d480..65087e141 100644
--- a/net/tap-linux.h
+++ b/net/tap-linux.h
@@ -29,6 +29,7 @@
#define TUNSETSNDBUF _IOW('T', 212, int)
#define TUNGETVNETHDRSZ _IOR('T', 215, int)
#define TUNSETVNETHDRSZ _IOW('T', 216, int)
+#define TUNSETQUEUE _IOW('T', 217, int)
#endif
@@ -36,6 +37,9 @@
#define IFF_TAP 0x0002
#define IFF_NO_PI 0x1000
#define IFF_VNET_HDR 0x4000
+#define IFF_MULTI_QUEUE 0x0100
+#define IFF_ATTACH_QUEUE 0x0200
+#define IFF_DETACH_QUEUE 0x0400
/* Features for GSO (TUNSETOFFLOAD). */
#define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */