diff options
| author |   Florin Coras <fcoras@cisco.com> | 2017-05-19 09:49:19 -0700 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2017-05-20 19:05:39 +0000 |
| commit | bb292f4d3fbecfc6b1bac695f833b0da78369116 (patch) | |
| tree | 54881b3d7f809764bd6d5b82d6533500c167fb1a /src/vnet/tcp/tcp_input.c | |
| parent | 95827e430762a2858f4e56e1248a4a93d629a938 (diff) | |
Improve session debugging
Also improves builtin client code.
Change-Id: I8bca1aa632028f95c373726efb0abf2ee0eff414
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp_input.c')
| -rw-r--r-- | src/vnet/tcp/tcp_input.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c index 9d3f4cc3..35bc9094 100644 --- a/src/vnet/tcp/tcp_input.c +++ b/src/vnet/tcp/tcp_input.c @@ -722,9 +722,11 @@ tcp_update_snd_wnd (tcp_connection_t * tc, u32 seq, u32 ack, u32 snd_wnd) TCP_EVT_DBG (TCP_EVT_SND_WND, tc); /* Set probe timer if we just got 0 wnd */ - if (tc->snd_wnd < tc->snd_mss - && !tcp_timer_is_active (tc, TCP_TIMER_PERSIST)) - tcp_persist_timer_set (tc); + if (tc->snd_wnd < tc->snd_mss) + { + if (!tcp_timer_is_active (tc, TCP_TIMER_PERSIST)) + tcp_persist_timer_set (tc); + } else tcp_persist_timer_reset (tc); } @@ -763,6 +765,7 @@ static void tcp_cc_rcv_ack (tcp_connection_t * tc, vlib_buffer_t * b) { u8 partial_ack; + u32 bytes_advanced; if (tcp_in_fastrecovery (tc)) { @@ -804,10 +807,14 @@ tcp_cc_rcv_ack (tcp_connection_t * tc, vlib_buffer_t * b) tc->rcv_dupacks = 0; if (tcp_in_recovery (tc)) { - tc->rtx_bytes -= clib_min (tc->bytes_acked, tc->rtx_bytes); + bytes_advanced = tc->bytes_acked + tc->sack_sb.snd_una_adv; + tc->rtx_bytes -= clib_min (bytes_advanced, tc->rtx_bytes); tc->rto = clib_min (tc->srtt + (tc->rttvar << 2), TCP_RTO_MAX); if (seq_geq (tc->snd_una, tc->snd_congestion)) - tcp_recovery_off (tc); + { + tc->rtx_bytes = 0; + tcp_recovery_off (tc); + } } } } @@ -1221,7 +1228,7 @@ format_tcp_rx_trace (u8 * s, va_list * args) s = format (s, "%U\n%U%U", format_tcp_header, &t->tcp_header, 128, format_white_space, indent, - format_tcp_connection_verbose, &t->tcp_connection); + format_tcp_connection, &t->tcp_connection, 1); return s; } @@ -1236,7 +1243,7 @@ format_tcp_rx_trace_short (u8 * s, va_list * args) s = format (s, "%d -> %d (%U)", clib_net_to_host_u16 (t->tcp_header.src_port), clib_net_to_host_u16 (t->tcp_header.dst_port), format_tcp_state, - &t->tcp_connection.state); + t->tcp_connection.state); return s; } @@ -2165,6 +2172,7 @@ tcp46_listen_inline (vlib_main_t * vm, vlib_node_runtime_t * node, child0->c_rmt_port = th0->src_port; child0->c_is_ip4 = is_ip4; child0->c_thread_index = my_thread_index; + child0->state = TCP_STATE_SYN_RCVD; if (is_ip4) { @@ -2194,7 +2202,6 @@ tcp46_listen_inline (vlib_main_t * vm, vlib_node_runtime_t * node, child0->irs = vnet_buffer (b0)->tcp.seq_number; child0->rcv_nxt = vnet_buffer (b0)->tcp.seq_number + 1; child0->rcv_las = child0->rcv_nxt; - child0->state = TCP_STATE_SYN_RCVD; /* RFC1323: TSval timestamps sent on {SYN} and {SYN,ACK} * segments are used to initialize PAWS. */ @@ -2450,7 +2457,7 @@ tcp46_input_inline (vlib_main_t * vm, vlib_node_runtime_t * node, if (error0 == TCP_ERROR_DISPATCH) clib_warning ("disp error state %U flags %U", - format_tcp_state, &state0, format_tcp_flags, + format_tcp_state, state0, format_tcp_flags, (int) flags0); } } |