diff options
| author | Mark McLoughlin <markmc@redhat.com> | 2009-10-22 17:49:16 +0100 |
|---|---|---|
| committer | Anthony Liguori <aliguori@us.ibm.com> | 2009-10-30 08:39:29 -0500 |
| commit | 9c282718aafd021661f0fa0431322a7df75705b0 (patch) | |
| tree | 931d70eb2bd7065f0185452ce2d85ce4e4b2d30e /net/tap-linux.c | |
| parent | 1faac1f7d48d3f7bfa2d168b1ad5680d3288f585 (diff) | |
net: move UFO support detection to tap-linux.c
Only supported on Linux
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'net/tap-linux.c')
| -rw-r--r-- | net/tap-linux.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/net/tap-linux.c b/net/tap-linux.c index b6f1fad5e4..0f621a2315 100644 --- a/net/tap-linux.c +++ b/net/tap-linux.c @@ -112,6 +112,18 @@ int tap_probe_vnet_hdr(int fd) return ifr.ifr_flags & IFF_VNET_HDR; } +int tap_probe_has_ufo(int fd) +{ + unsigned offload; + + offload = TUN_F_CSUM | TUN_F_UFO; + + if (ioctl(fd, TUNSETOFFLOAD, offload) < 0) + return 0; + + return 1; +} + void tap_fd_set_offload(int fd, int csum, int tso4, int tso6, int ecn, int ufo) { |