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| author | Yuri Benditovich <yuri.benditovich@daynix.com> | 2023-08-01 01:31:46 +0300 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2023-09-18 14:36:13 +0800 |
| commit | f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1 (patch) | |
| tree | c79205f8ff2f632b9670b5f354fd3397f7713988 /net/tap-linux.c | |
| parent | 2ab0ec31215e68f7af6b21b62e49141eb7c083e2 (diff) | |
| download | qemu-f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1.zip qemu-f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1.tar.gz qemu-f03e0cf63b97a2f98d3b642ee5e7b3bb4379b4b1.tar.bz2 | |
tap: Add check for USO features
Tap indicates support for USO features according to
capabilities of current kernel module.
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Andrew Melnychecnko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.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 30fcca1..c7e514e 100644 --- a/net/tap-linux.c +++ b/net/tap-linux.c @@ -173,6 +173,18 @@ int tap_probe_has_ufo(int fd) return 1; } +int tap_probe_has_uso(int fd) +{ + unsigned offload; + + offload = TUN_F_CSUM | TUN_F_USO4 | TUN_F_USO6; + + if (ioctl(fd, TUNSETOFFLOAD, offload) < 0) { + return 0; + } + return 1; +} + /* Verify that we can assign given length */ int tap_probe_vnet_hdr_len(int fd, int len) { |