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| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-30 16:11:59 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 13:08:18 -0700 |
| commit | d463126e23f112629edb01594141ca437a92a108 (patch) | |
| tree | 65dc1baabdb9e2aefc4208f358f6eec3bf54154d /include/net | |
| parent | 6c9a0a0f2333b1e3c29fef47a8b12131fce4905b (diff) | |
| download | lwn-d463126e23f112629edb01594141ca437a92a108.tar.gz lwn-d463126e23f112629edb01594141ca437a92a108.zip | |
net: sock: extend SO_TIMESTAMPING for PHC binding
Since PTP virtual clock support is added, there can be
several PTP virtual clocks based on one PTP physical
clock for timestamping.
This patch is to extend SO_TIMESTAMPING API to support
PHC (PTP Hardware Clock) binding by adding a new flag
SOF_TIMESTAMPING_BIND_PHC. When PTP virtual clocks are
in use, user space can configure to bind one for
timestamping, but PTP physical clock is not supported
and not needed to bind.
This patch is preparation for timestamp conversion from
raw timestamp to a specific PTP virtual clock time in
core net.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/sock.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 8bdd80027ffb..f23cb259b0e2 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -316,7 +316,9 @@ struct bpf_local_storage; * @sk_timer: sock cleanup timer * @sk_stamp: time stamp of last packet received * @sk_stamp_seq: lock for accessing sk_stamp on 32 bit architectures only - * @sk_tsflags: SO_TIMESTAMPING socket options + * @sk_tsflags: SO_TIMESTAMPING flags + * @sk_bind_phc: SO_TIMESTAMPING bind PHC index of PTP virtual clock + * for timestamping * @sk_tskey: counter to disambiguate concurrent tstamp requests * @sk_zckey: counter to order MSG_ZEROCOPY notifications * @sk_socket: Identd and reporting IO signals @@ -493,6 +495,7 @@ struct sock { seqlock_t sk_stamp_seq; #endif u16 sk_tsflags; + int sk_bind_phc; u8 sk_shutdown; u32 sk_tskey; atomic_t sk_zckey; @@ -2755,7 +2758,8 @@ void sock_def_readable(struct sock *sk); int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk); void sock_set_timestamp(struct sock *sk, int optname, bool valbool); -int sock_set_timestamping(struct sock *sk, int optname, int val); +int sock_set_timestamping(struct sock *sk, int optname, + struct so_timestamping timestamping); void sock_enable_timestamps(struct sock *sk); void sock_no_linger(struct sock *sk); |