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>

1 files changed, 1 insertions, 6 deletions

diff --git a/net/tap.c b/net/tap.c
index 9b11071..60354e4 100644
--- a/net/tap.c
+++ b/net/tap.c
@@ -271,7 +271,6 @@ static TAPState *net_tap_fd_init(VLANState *vlan,
                                  int vnet_hdr)
 {
     TAPState *s;
-    unsigned int offload;
 
     s = qemu_mallocz(sizeof(TAPState));
     s->fd = fd;
@@ -281,11 +280,7 @@ static TAPState *net_tap_fd_init(VLANState *vlan,
                                  vlan, NULL, model, name, NULL,
                                  tap_receive, tap_receive_raw,
                                  tap_receive_iov, tap_cleanup, s);
-    s->has_ufo = 0;
-    /* Check if tap supports UFO */
-    offload = TUN_F_CSUM | TUN_F_UFO;
-    if (ioctl(s->fd, TUNSETOFFLOAD, offload) == 0)
-       s->has_ufo = 1;
+    s->has_ufo = tap_probe_has_ufo(s->fd);
     tap_set_offload(s->vc, 0, 0, 0, 0, 0);
     tap_read_poll(s, 1);
     return s;