diff options
Diffstat (limited to 'src/vnet/tcp')
| -rw-r--r-- | src/vnet/tcp/tcp.h | 1 | ||||
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 23 |
2 files changed, 21 insertions, 3 deletions
diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index f4cc2c88e62..5c66412dfea 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -58,6 +58,7 @@ typedef struct _tcp_lookup_dispatch _(to_closing, u32, "timeout closing") \ _(tr_abort, u32, "timer retransmit abort") \ _(rst_unread, u32, "reset on close due to unread data") \ + _(no_buffer, u32, "out of buffers") \ typedef struct tcp_wrk_stats_ { diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index 6bcca31ca77..afc652029c8 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -669,7 +669,10 @@ tcp_send_reset_w_pkt (tcp_connection_t * tc, vlib_buffer_t * pkt, fib_protocol_t fib_proto; if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) - return; + { + tcp_worker_stats_inc (wrk, no_buffer, 1); + return; + } b = vlib_get_buffer (vm, bi); sw_if_index = vnet_buffer (pkt)->sw_if_index[VLIB_RX]; @@ -750,7 +753,10 @@ tcp_send_reset (tcp_connection_t * tc) u8 flags; if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) - return; + { + tcp_worker_stats_inc (wrk, no_buffer, 1); + return; + } b = vlib_get_buffer (vm, bi); tcp_init_buffer (vm, b); @@ -812,6 +818,7 @@ tcp_send_syn (tcp_connection_t * tc) if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) { tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN, 1); + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } @@ -842,6 +849,7 @@ tcp_send_synack (tcp_connection_t * tc) if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) { tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT, 1); + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } @@ -878,6 +886,7 @@ tcp_send_fin (tcp_connection_t * tc) else /* Make sure retransmit retries a fin not data */ tc->flags |= TCP_CONN_FINSNT; + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } @@ -1018,6 +1027,7 @@ tcp_send_ack (tcp_connection_t * tc) if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) { tcp_update_rcv_wnd (tc); + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } b = vlib_get_buffer (vm, bi); @@ -1127,7 +1137,10 @@ tcp_prepare_segment (tcp_worker_ctx_t * wrk, tcp_connection_t * tc, if (PREDICT_TRUE (seg_size <= bytes_per_buffer)) { if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) - return 0; + { + tcp_worker_stats_inc (wrk, no_buffer, 1); + return 0; + } *b = vlib_get_buffer (vm, bi); data = tcp_init_buffer (vm, *b); n_bytes = session_tx_fifo_peek_bytes (&tc->connection, data, offset, @@ -1154,6 +1167,7 @@ tcp_prepare_segment (tcp_worker_ctx_t * wrk, tcp_connection_t * tc, { if (n_bufs) vlib_buffer_free (vm, wrk->tx_buffers, n_bufs); + tcp_worker_stats_inc (wrk, no_buffer, 1); return 0; } @@ -1415,6 +1429,7 @@ tcp_timer_retransmit_handler (tcp_connection_t * tc) if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) { tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT, 1); + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } @@ -1478,6 +1493,7 @@ tcp_timer_retransmit_syn_handler (tcp_connection_t * tc) if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) { tcp_timer_update (&wrk->timer_wheel, tc, TCP_TIMER_RETRANSMIT_SYN, 1); + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } @@ -1545,6 +1561,7 @@ tcp_timer_persist_handler (tcp_connection_t * tc) if (PREDICT_FALSE (!vlib_buffer_alloc (vm, &bi, 1))) { tcp_persist_timer_set (&wrk->timer_wheel, tc); + tcp_worker_stats_inc (wrk, no_buffer, 1); return; } |