diff options
| author |   Florin Coras <fcoras@cisco.com> | 2019-08-16 10:33:49 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2019-08-19 09:22:18 +0000 |
| commit | d206724e78d99aee5d91d43fb0832d51d70eb57a (patch) | |
| tree | d4a61d3764f84f9e26998bb6c3869bf44875969a /src/vnet/tcp/tcp.h | |
| parent | 14bea1bb6505c0134dd5d2a18bcc436ce72cd149 (diff) | |
tcp: allow cc algos to set pacing rate
Type: feature
Change-Id: Ie7f0f5d2a476d401ede567e422abb953b2bb4a78
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.h')
| -rw-r--r-- | src/vnet/tcp/tcp.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index 753a1ca6996..81ce1d52bde 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -417,6 +417,7 @@ struct _tcp_cc_algorithm void (*recovered) (tcp_connection_t * tc); void (*undo_recovery) (tcp_connection_t * tc); void (*event) (tcp_connection_t *tc, tcp_cc_event_t evt); + u64 (*get_pacing_rate) (tcp_connection_t *tc); }; /* *INDENT-ON* */ @@ -1053,6 +1054,18 @@ tcp_cc_event (tcp_connection_t * tc, tcp_cc_event_t evt) tc->cc_algo->event (tc, evt); } +static inline u64 +tcp_cc_get_pacing_rate (tcp_connection_t * tc) +{ + if (tc->cc_algo->get_pacing_rate) + return tc->cc_algo->get_pacing_rate (tc); + + f64 srtt = clib_min ((f64) tc->srtt * TCP_TICK, tc->mrtt_us); + /* TODO should constrain to interface's max throughput but + * we don't have link speeds for sw ifs ..*/ + return (tc->cwnd / srtt); +} + always_inline void tcp_timer_set (tcp_connection_t * tc, u8 timer_id, u32 interval) { |