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| author | Yangbo Lu <yangbo.lu@nxp.com> | 2021-06-30 16:12:00 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-07-01 13:08:18 -0700 |
| commit | d7c08826558811e1bf88de3750a7051f27d0e25c (patch) | |
| tree | 7c6d68b3635ac6967988bb3891865b53f7161a16 /net/socket.c | |
| parent | d463126e23f112629edb01594141ca437a92a108 (diff) | |
| download | lwn-d7c08826558811e1bf88de3750a7051f27d0e25c.tar.gz lwn-d7c08826558811e1bf88de3750a7051f27d0e25c.zip | |
net: socket: support hardware timestamp conversion to PHC bound
This patch is to support hardware timestamp conversion to
PHC bound. This applies to both RX and TX since their skb
handling (for TX, it's skb clone in error queue) all goes
through __sock_recv_timestamp.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/socket.c')
| -rw-r--r-- | net/socket.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/net/socket.c b/net/socket.c index bd9233da2497..0b2dad3bdf7f 100644 --- a/net/socket.c +++ b/net/socket.c @@ -104,6 +104,7 @@ #include <linux/sockios.h> #include <net/busy_poll.h> #include <linux/errqueue.h> +#include <linux/ptp_clock_kernel.h> #ifdef CONFIG_NET_RX_BUSY_POLL unsigned int sysctl_net_busy_read __read_mostly; @@ -873,12 +874,18 @@ void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk, empty = 0; if (shhwtstamps && (sk->sk_tsflags & SOF_TIMESTAMPING_RAW_HARDWARE) && - !skb_is_swtx_tstamp(skb, false_tstamp) && - ktime_to_timespec64_cond(shhwtstamps->hwtstamp, tss.ts + 2)) { - empty = 0; - if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_PKTINFO) && - !skb_is_err_queue(skb)) - put_ts_pktinfo(msg, skb); + !skb_is_swtx_tstamp(skb, false_tstamp)) { + if (sk->sk_tsflags & SOF_TIMESTAMPING_BIND_PHC) + ptp_convert_timestamp(shhwtstamps, sk->sk_bind_phc); + + if (ktime_to_timespec64_cond(shhwtstamps->hwtstamp, + tss.ts + 2)) { + empty = 0; + + if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_PKTINFO) && + !skb_is_err_queue(skb)) + put_ts_pktinfo(msg, skb); + } } if (!empty) { if (sock_flag(sk, SOCK_TSTAMP_NEW)) |