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| author | Rusty Russell <rusty@rustcorp.com.au> | 2008-07-03 03:48:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-03 03:48:02 -0700 |
| commit | f43798c27684ab925adde7d8acc34c78c6e50df8 (patch) | |
| tree | 21e952a07534dd382835246d02245d5e776c4d8b /include/linux/if_tun.h | |
| parent | 5228ddc98fa49b3cedab4024e269d62410a0d806 (diff) | |
| download | linux-f43798c27684ab925adde7d8acc34c78c6e50df8.tar.gz linux-f43798c27684ab925adde7d8acc34c78c6e50df8.tar.bz2 linux-f43798c27684ab925adde7d8acc34c78c6e50df8.zip | |
tun: Allow GSO using virtio_net_hdr
Add a IFF_VNET_HDR flag. This uses the same ABI as virtio_net
(ie. prepending struct virtio_net_hdr to packets) to indicate GSO and
checksum information.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Max Krasnyansky <maxk@qualcomm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/if_tun.h')
| -rw-r--r-- | include/linux/if_tun.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/if_tun.h b/include/linux/if_tun.h index 3f0a0995d449..563fae542da6 100644 --- a/include/linux/if_tun.h +++ b/include/linux/if_tun.h @@ -31,6 +31,7 @@ #define TUN_NO_PI 0x0040 #define TUN_ONE_QUEUE 0x0080 #define TUN_PERSIST 0x0100 +#define TUN_VNET_HDR 0x0200 /* Ioctl defines */ #define TUNSETNOCSUM _IOW('T', 200, int) @@ -48,6 +49,7 @@ #define IFF_TAP 0x0002 #define IFF_NO_PI 0x1000 #define IFF_ONE_QUEUE 0x2000 +#define IFF_VNET_HDR 0x4000 /* Features for GSO (TUNSETOFFLOAD). */ #define TUN_F_CSUM 0x01 /* You can hand me unchecksummed packets. */ |