1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2022 Linutronix GmbH */
5 #include <bpf/bpf_helpers.h>
7 char _license[] SEC("license") = "GPL";
10 int time_tai(struct __sk_buff *skb)
14 /* Get TAI timestamps */
15 ts1 = bpf_ktime_get_tai_ns();
16 ts2 = bpf_ktime_get_tai_ns();
18 /* Save TAI timestamps (Note: skb->hwtstamp is read-only) */
20 skb->cb[0] = ts2 & 0xffffffff;
21 skb->cb[1] = ts2 >> 32;