X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=inline;f=src%2Fvnet%2Fsession%2Ftransport.c;h=69046855c38bb88e80a2479d061cb6f3de8ed441;hb=4897d77c6d4d5d04eb7e02bda57dc6c7005a609f;hp=3160a48d37d5b6db5c3139d99a581b03013645cd;hpb=a8e71c8981f039588a7ca94e6ab66b4ebac784a5;p=vpp.git diff --git a/src/vnet/session/transport.c b/src/vnet/session/transport.c index 3160a48d37d..69046855c38 100644 --- a/src/vnet/session/transport.c +++ b/src/vnet/session/transport.c @@ -46,18 +46,12 @@ u8 * format_transport_proto (u8 * s, va_list * args) { u32 transport_proto = va_arg (*args, u32); - switch (transport_proto) - { -#define _(sym, str, sstr) \ - case TRANSPORT_PROTO_ ## sym: \ - s = format (s, str); \ - break; - foreach_transport_proto -#undef _ - default: - s = format (s, "UNKNOWN"); - break; - } + + if (tp_vfts[transport_proto].transport_options.name) + s = format (s, "%s", tp_vfts[transport_proto].transport_options.name); + else + s = format (s, "n/a"); + return s; } @@ -65,18 +59,14 @@ u8 * format_transport_proto_short (u8 * s, va_list * args) { u32 transport_proto = va_arg (*args, u32); - switch (transport_proto) - { -#define _(sym, str, sstr) \ - case TRANSPORT_PROTO_ ## sym: \ - s = format (s, sstr); \ - break; - foreach_transport_proto -#undef _ - default: - s = format (s, "?"); - break; - } + char *short_name; + + short_name = tp_vfts[transport_proto].transport_options.short_name; + if (short_name) + s = format (s, "%s", short_name); + else + s = format (s, "NA"); + return s; } @@ -103,6 +93,8 @@ format_transport_connection (u8 * s, va_list * args) indent = format_get_indent (s) + 1; s = format (s, "%Upacer: %U\n", format_white_space, indent, format_transport_pacer, &tc->pacer, tc->thread_index); + s = format (s, "%Utransport: flags 0x%x\n", format_white_space, indent, + tc->flags); } return s; } @@ -136,20 +128,66 @@ format_transport_half_open_connection (u8 * s, va_list * args) return s; } +static u8 +unformat_transport_str_match (unformat_input_t * input, const char *str) +{ + int i; + + if (strlen (str) > vec_len (input->buffer) - input->index) + return 0; + + for (i = 0; i < strlen (str); i++) + { + if (input->buffer[i + input->index] != str[i]) + return 0; + } + return 1; +} + uword unformat_transport_proto (unformat_input_t * input, va_list * args) { u32 *proto = va_arg (*args, u32 *); + transport_proto_vft_t *tp_vft; + u8 longest_match = 0, match; + char *str, *str_match = 0; + transport_proto_t tp; -#define _(sym, str, sstr) \ - if (unformat (input, str)) \ - { \ - *proto = TRANSPORT_PROTO_ ## sym; \ - return 1; \ + for (tp = 0; tp < vec_len (tp_vfts); tp++) + { + tp_vft = &tp_vfts[tp]; + str = tp_vft->transport_options.name; + if (!str) + continue; + if (unformat_transport_str_match (input, str)) + { + match = strlen (str); + if (match > longest_match) + { + *proto = tp; + longest_match = match; + str_match = str; + } + } } - foreach_transport_proto -#undef _ - return 0; + if (longest_match) + { + (void) unformat (input, str_match); + return 1; + } + + return 0; +} + +u8 * +format_transport_protos (u8 * s, va_list * args) +{ + transport_proto_vft_t *tp_vft; + + vec_foreach (tp_vft, tp_vfts) + s = format (s, "%s\n", tp_vft->transport_options.name); + + return s; } u32 @@ -197,15 +235,6 @@ transport_endpoint_table_del (transport_endpoint_table_t * ht, u8 proto, clib_bihash_add_del_24_8 (ht, &kv, 0); } -/** - * Register transport virtual function table. - * - * @param transport_proto - transport protocol type (i.e., TCP, UDP ..) - * @param vft - virtual function table for transport proto - * @param fib_proto - network layer protocol - * @param output_node - output node index that session layer will hand off - * buffers to, for requested fib proto - */ void transport_register_protocol (transport_proto_t transport_proto, const transport_proto_vft_t * vft, @@ -219,6 +248,24 @@ transport_register_protocol (transport_proto_t transport_proto, session_register_transport (transport_proto, vft, is_ip4, output_node); } +transport_proto_t +transport_register_new_protocol (const transport_proto_vft_t * vft, + fib_protocol_t fib_proto, u32 output_node) +{ + transport_proto_t transport_proto; + u8 is_ip4; + + transport_proto = session_add_transport_proto (); + is_ip4 = fib_proto == FIB_PROTOCOL_IP4; + + vec_validate (tp_vfts, transport_proto); + tp_vfts[transport_proto] = *vft; + + session_register_transport (transport_proto, vft, is_ip4, output_node); + + return transport_proto; +} + /** * Get transport virtual function table * @@ -570,9 +617,9 @@ format_transport_pacer (u8 * s, va_list * args) now = transport_us_time_now (thread_index); diff = now - pacer->last_update; - s = format (s, "rate %lu bucket %lu t/p %.3f last_update %U", + s = format (s, "rate %lu bucket %lu t/p %.3f last_update %U idle %u", pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period, - format_clib_us_time, diff); + format_clib_us_time, diff, pacer->idle_timeout_us); return s; } @@ -582,15 +629,14 @@ spacer_max_burst (spacer_t * pacer, clib_us_time_t time_now) u64 n_periods = (time_now - pacer->last_update); u64 inc; - if (PREDICT_FALSE (n_periods > 5e4)) + if (PREDICT_FALSE (n_periods > pacer->idle_timeout_us)) { pacer->last_update = time_now; pacer->bucket = TRANSPORT_PACER_MIN_BURST; return TRANSPORT_PACER_MIN_BURST; } - if (n_periods > 0 - && (inc = (f32) n_periods * pacer->tokens_per_period) > 10) + if ((inc = (f32) n_periods * pacer->tokens_per_period) > 10) { pacer->last_update = time_now; pacer->bucket = clib_min (pacer->bucket + inc, pacer->bytes_per_sec); @@ -607,11 +653,14 @@ spacer_update_bucket (spacer_t * pacer, u32 bytes) } static inline void -spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec) +spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec, + clib_us_time_t rtt) { ASSERT (rate_bytes_per_sec != 0); pacer->bytes_per_sec = rate_bytes_per_sec; pacer->tokens_per_period = rate_bytes_per_sec * CLIB_US_TIME_PERIOD; + pacer->idle_timeout_us = clib_max (rtt * TRANSPORT_PACER_IDLE_FACTOR, + TRANSPORT_PACER_MIN_IDLE); } static inline u64 @@ -629,17 +678,19 @@ spacer_reset (spacer_t * pacer, clib_us_time_t time_now, u64 bucket) void transport_connection_tx_pacer_reset (transport_connection_t * tc, - u64 rate_bytes_per_sec, u32 start_bucket) + u64 rate_bytes_per_sec, u32 start_bucket, + clib_us_time_t rtt) { - spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec); + spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt); spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), start_bucket); } void -transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc) +transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc, + u32 bucket) { - spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), 0); + spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), bucket); } void @@ -649,14 +700,14 @@ transport_connection_tx_pacer_init (transport_connection_t * tc, { tc->flags |= TRANSPORT_CONNECTION_F_IS_TX_PACED; transport_connection_tx_pacer_reset (tc, rate_bytes_per_sec, - initial_bucket); + initial_bucket, 1e6); } void transport_connection_tx_pacer_update (transport_connection_t * tc, - u64 bytes_per_sec) + u64 bytes_per_sec, clib_us_time_t rtt) { - spacer_set_pace_rate (&tc->pacer, bytes_per_sec); + spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt); } u32 @@ -666,24 +717,6 @@ transport_connection_tx_pacer_burst (transport_connection_t * tc) transport_us_time_now (tc->thread_index)); } -u32 -transport_connection_snd_space (transport_connection_t * tc, u16 mss) -{ - u32 snd_space, max_paced_burst; - - snd_space = tp_vfts[tc->proto].send_space (tc); - if (snd_space && transport_connection_is_tx_paced (tc)) - { - clib_us_time_t now = transport_us_time_now (tc->thread_index); - max_paced_burst = spacer_max_burst (&tc->pacer, now); - max_paced_burst = - (max_paced_burst < TRANSPORT_PACER_MIN_BURST) ? 0 : max_paced_burst; - snd_space = clib_min (snd_space, max_paced_burst); - return snd_space >= mss ? snd_space - snd_space % mss : snd_space; - } - return snd_space; -} - u64 transport_connection_tx_pacer_rate (transport_connection_t * tc) { @@ -704,6 +737,23 @@ transport_connection_tx_pacer_update_bytes (transport_connection_t * tc, spacer_update_bucket (&tc->pacer, bytes); } +void +transport_connection_reschedule (transport_connection_t * tc) +{ + tc->flags &= ~TRANSPORT_CONNECTION_F_DESCHED; + transport_connection_tx_pacer_reset_bucket (tc, TRANSPORT_PACER_MIN_BURST); + if (transport_max_tx_dequeue (tc)) + sesssion_reschedule_tx (tc); + else + { + session_t *s = session_get (tc->s_index, tc->thread_index); + svm_fifo_unset_event (s->tx_fifo); + if (svm_fifo_max_dequeue_cons (s->tx_fifo)) + if (svm_fifo_set_event (s->tx_fifo)) + sesssion_reschedule_tx (tc); + } +} + void transport_update_time (clib_time_type_t time_now, u8 thread_index) {