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net: move UFO support detection to tap-linux.c

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Only supported on Linux

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Mark McLoughlin 2009-10-22 17:49:16 +01:00 • committed by Anthony Liguori
parent 1faac1f7d4
commit 9c282718aa
6 changed files with 29 additions and 6 deletions
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12
net/tap-linux.c
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@ -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)
{