diff options
Diffstat (limited to 'src/vnet/tcp')
| -rw-r--r-- | src/vnet/tcp/tcp.c | 13 | ||||
| -rw-r--r-- | src/vnet/tcp/tcp.h | 16 | ||||
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 3 |
3 files changed, 22 insertions, 10 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index 45eaf016b1e..d00f4abb118 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -765,8 +765,9 @@ format_tcp_vars (u8 * s, va_list * args) tc->snd_una_max - tc->iss); s = format (s, " rcv_nxt %u rcv_las %u\n", tc->rcv_nxt - tc->irs, tc->rcv_las - tc->irs); - 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, + s = format (s, " snd_wnd %u rcv_wnd %u rcv_wscale %u ", + tc->snd_wnd, tc->rcv_wnd, tc->rcv_wscale); + s = format (s, "snd_wl1 %u snd_wl2 %u\n", tc->snd_wl1 - tc->irs, tc->snd_wl2 - tc->iss); 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), @@ -1388,9 +1389,8 @@ tcp_config_fn (vlib_main_t * vm, unformat_input_t * input) while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { - if (unformat - (input, "preallocated-connections %d", - &tm->preallocated_connections)) + if (unformat (input, "preallocated-connections %d", + &tm->preallocated_connections)) ; else if (unformat (input, "preallocated-half-open-connections %d", &tm->preallocated_half_open_connections)) @@ -1398,6 +1398,9 @@ tcp_config_fn (vlib_main_t * vm, unformat_input_t * input) else if (unformat (input, "buffer-fail-fraction %f", &tm->buffer_fail_fraction)) ; + else if (unformat (input, "max-rx-fifo %U", unformat_memory_size, + &tm->max_rx_fifo)) + ; else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h index e4168c4b701..37b4573cf25 100644 --- a/src/vnet/tcp/tcp.h +++ b/src/vnet/tcp/tcp.h @@ -32,7 +32,7 @@ #define TCP_MAX_OPTION_SPACE 40 #define TCP_DUPACK_THRESHOLD 3 -#define TCP_MAX_RX_FIFO_SIZE 4 << 20 +#define TCP_MAX_RX_FIFO_SIZE 32 << 20 #define TCP_MIN_RX_FIFO_SIZE 4 << 10 #define TCP_IW_N_SEGMENTS 10 #define TCP_ALWAYS_ACK 1 /**< On/off delayed acks */ @@ -408,9 +408,20 @@ typedef struct _tcp_main /* Congestion control algorithms registered */ tcp_cc_algorithm_t *cc_algos; + /** vlib buffer size */ + u32 bytes_per_buffer; + + /* + * Configuration + */ + /* Flag that indicates if stack is on or off */ u8 is_enabled; + /** Max rx fifo size for a session. It is used in to compute the + * rfc 7323 window scaling factor */ + u32 max_rx_fifo; + /** Number of preallocated connections */ u32 preallocated_connections; u32 preallocated_half_open_connections; @@ -421,9 +432,6 @@ typedef struct _tcp_main u32 last_v6_address_rotor; ip6_address_t *ip6_src_addresses; - /** vlib buffer size */ - u32 bytes_per_buffer; - u8 punt_unknown4; u8 punt_unknown6; diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index f37958e12f2..0d5feb976f8 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -118,12 +118,13 @@ tcp_initial_wnd_unscaled (tcp_connection_t * tc) u32 tcp_initial_window_to_advertise (tcp_connection_t * tc) { + tcp_main_t *tm = &tcp_main; u32 max_fifo; /* Initial wnd for SYN. Fifos are not allocated yet. * Use some predefined value. For SYN-ACK we still want the * scale to be computed in the same way */ - max_fifo = TCP_MAX_RX_FIFO_SIZE; + max_fifo = tm->max_rx_fifo ? tm->max_rx_fifo : TCP_MAX_RX_FIFO_SIZE; tc->rcv_wscale = tcp_window_compute_scale (max_fifo); tc->rcv_wnd = tcp_initial_wnd_unscaled (tc); |