@@ -2318,8 +2318,10 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile,
struct iov_iter *to,
int noblock, void *ptr)
{
+ struct xdp_frame *frame;
ssize_t ret;
int err;
+ u32 act;
tun_debug(KERN_INFO, tun, "tun_do_read\n");
@@ -2333,6 +2335,15 @@ static ssize_t tun_do_read(struct tun_struct *tun, struct tun_file *tfile,
ptr = tun_ring_recv(tfile, noblock, &err);
if (!ptr)
return err;
+
+ if (tun_is_xdp_frame(ptr)) {
+ frame = tun_ptr_to_xdp(ptr);
+ act = tun_do_xdp_offload(tun, tfile, frame);
+ } else {
+ act = tun_do_xdp_offload_generic(tun, ptr);
+ }
+ if (act != XDP_PASS)
+ return err;
}
if (tun_is_xdp_frame(ptr)) {
It handles the case when qemu performs read on tun using file operations. Signed-off-by: Prashant Bhole <prashantbhole.linux@gmail.com> --- drivers/net/tun.c | 11 +++++++++++ 1 file changed, 11 insertions(+)