diff options
| author | Eric Dumazet <edumazet@google.com> | 2018-09-21 08:51:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-21 19:37:59 -0700 |
| commit | 9799ccb0e984a5c1311b22a212e7ff96e8b736de (patch) | |
| tree | 85061422e73b7f752c2e5c568ba57367e28d31a1 /include | |
| parent | 142537e419234c396890a22806b8644dce21b132 (diff) | |
tcp: add tcp_wstamp_ns socket field
TCP will soon provide earliest departure time on TX skbs.
It needs to track this in a new variable.
tcp_mstamp_refresh() needs to update this variable, and
became too big to stay an inline.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/tcp.h | 2 | ||||
| -rw-r--r-- | include/net/tcp.h | 12 |
2 files changed, 3 insertions, 11 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 263e37271afd..848f5b25e178 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -248,6 +248,8 @@ struct tcp_sock { syn_smc:1; /* SYN includes SMC */ u32 tlp_high_seq; /* snd_nxt at the time of TLP retransmit. */ + u64 tcp_wstamp_ns; /* departure time for next sent data packet */ + /* RTT measurement */ u64 tcp_mstamp; /* most recent packet received/sent */ u32 srtt_us; /* smoothed round trip time << 3 in usecs */ diff --git a/include/net/tcp.h b/include/net/tcp.h index 0ca5ea10dc06..370198fdc65d 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -752,17 +752,7 @@ static inline u32 tcp_time_stamp_raw(void) return div_u64(tcp_clock_ns(), NSEC_PER_SEC / TCP_TS_HZ); } - -/* Refresh 1us clock of a TCP socket, - * ensuring monotically increasing values. - */ -static inline void tcp_mstamp_refresh(struct tcp_sock *tp) -{ - u64 val = tcp_clock_us(); - - if (val > tp->tcp_mstamp) - tp->tcp_mstamp = val; -} +void tcp_mstamp_refresh(struct tcp_sock *tp); static inline u32 tcp_stamp_us_delta(u64 t1, u64 t0) { |