diff options
| author |   Florin Coras <fcoras@cisco.com> | 2018-05-23 21:01:30 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2018-05-26 18:56:43 +0000 |
| commit | ca1c8f3e782dc68a51aa2792771d9b4aac696ddd (patch) | |
| tree | 890c7250af97dd65357363242e2c7272a199feca /src/vnet/tcp/tcp.c | |
| parent | a34c08c8c5a505e55178a9a8ef5391224d5460a5 (diff) | |
tcp: loss recovery improvements/fixes
- fix newreno cwnd computation
- reset snd_una_max on entering recovery
- accept acks beyond snd_nxt but less than snd_congestion when in
recovery
- avoid entering fast recovery multiple times when using sacks
- avoid as much as possible sending small segments when doing fast
retransmit
- more event logging
Change-Id: I19dd151d7704e39d4eae06de3a26f5e124875366
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.c')
| -rw-r--r-- | src/vnet/tcp/tcp.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index 25292d1e588..15ac7d37edc 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -734,9 +734,9 @@ format_tcp_vars (u8 * s, va_list * args) s = format (s, " snd_wnd %u rcv_wnd %u snd_wl1 %u snd_wl2 %u\n", tc->snd_wnd, tc->rcv_wnd, tc->snd_wl1 - tc->irs, tc->snd_wl2 - tc->iss); - s = format (s, " flight size %u send space %u rcv_wnd_av %d\n", + s = format (s, " flight size %u out space %u cc space %u rcv_wnd_av %u\n", tcp_flight_size (tc), tcp_available_output_snd_space (tc), - tcp_rcv_wnd_available (tc)); + tcp_available_cc_snd_space (tc), tcp_rcv_wnd_available (tc)); s = format (s, " cong %U ", format_tcp_congestion_status, tc); s = format (s, "cwnd %u ssthresh %u rtx_bytes %u bytes_acked %u\n", tc->cwnd, tc->ssthresh, tc->snd_rxt_bytes, tc->bytes_acked); @@ -1022,7 +1022,7 @@ tcp_snd_space (tcp_connection_t * tc) * bytes of previously unsent data. */ if (tcp_in_fastrecovery (tc) && !tcp_fastrecovery_sent_1_smss (tc)) { - if (tcp_available_output_snd_space (tc) < tc->snd_mss) + if (tcp_available_cc_snd_space (tc) < tc->snd_mss) return 0; tcp_fastrecovery_1_smss_on (tc); return tc->snd_mss; |