2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/session/transport.h>
17 #include <vnet/session/session.h>
18 #include <vnet/fib/fib.h>
21 * Per-type vector of transport protocol virtual function tables
23 transport_proto_vft_t *tp_vfts;
25 typedef struct local_endpoint_
27 transport_endpoint_t ep;
28 transport_proto_t proto;
32 typedef struct transport_main_
34 transport_endpoint_table_t local_endpoints_table;
35 local_endpoint_t *local_endpoints;
36 u32 *lcl_endpts_freelist;
37 u32 port_allocator_seed;
38 u8 lcl_endpts_cleanup_pending;
39 clib_spinlock_t local_endpoints_lock;
42 static transport_main_t tp_main;
45 format_transport_proto (u8 * s, va_list * args)
47 u32 transport_proto = va_arg (*args, u32);
49 if (tp_vfts[transport_proto].transport_options.name)
50 s = format (s, "%s", tp_vfts[transport_proto].transport_options.name);
52 s = format (s, "n/a");
58 format_transport_proto_short (u8 * s, va_list * args)
60 u32 transport_proto = va_arg (*args, u32);
63 short_name = tp_vfts[transport_proto].transport_options.short_name;
65 s = format (s, "%s", short_name);
72 const char *transport_flags_str[] = {
73 #define _(sym, str) str,
74 foreach_transport_connection_flag
79 format_transport_flags (u8 *s, va_list *args)
81 transport_connection_flags_t flags;
84 flags = va_arg (*args, transport_connection_flags_t);
86 for (i = 0; i < TRANSPORT_CONNECTION_N_FLAGS; i++)
90 for (i = 0; i < last; i++)
93 s = format (s, "%s, ", transport_flags_str[i]);
96 s = format (s, "%s", transport_flags_str[last]);
102 format_transport_connection (u8 * s, va_list * args)
104 u32 transport_proto = va_arg (*args, u32);
105 u32 conn_index = va_arg (*args, u32);
106 u32 thread_index = va_arg (*args, u32);
107 u32 verbose = va_arg (*args, u32);
108 transport_proto_vft_t *tp_vft;
109 transport_connection_t *tc;
112 tp_vft = transport_protocol_get_vft (transport_proto);
116 s = format (s, "%U", tp_vft->format_connection, conn_index, thread_index,
118 tc = tp_vft->get_connection (conn_index, thread_index);
119 if (tc && verbose > 1)
121 indent = format_get_indent (s) + 1;
122 if (transport_connection_is_tx_paced (tc))
123 s = format (s, "%Upacer: %U\n", format_white_space, indent,
124 format_transport_pacer, &tc->pacer, tc->thread_index);
125 s = format (s, "%Utransport: flags: %U\n", format_white_space, indent,
126 format_transport_flags, tc->flags);
132 format_transport_listen_connection (u8 * s, va_list * args)
134 u32 transport_proto = va_arg (*args, u32);
135 transport_proto_vft_t *tp_vft;
137 tp_vft = transport_protocol_get_vft (transport_proto);
141 s = (tp_vft->format_listener) (s, args);
146 format_transport_half_open_connection (u8 * s, va_list * args)
148 u32 transport_proto = va_arg (*args, u32);
149 transport_proto_vft_t *tp_vft;
151 tp_vft = transport_protocol_get_vft (transport_proto);
155 s = (tp_vft->format_half_open) (s, args);
160 unformat_transport_str_match (unformat_input_t * input, const char *str)
164 if (strlen (str) > vec_len (input->buffer) - input->index)
167 for (i = 0; i < strlen (str); i++)
169 if (input->buffer[i + input->index] != str[i])
176 unformat_transport_proto (unformat_input_t * input, va_list * args)
178 u32 *proto = va_arg (*args, u32 *);
179 transport_proto_vft_t *tp_vft;
180 u8 longest_match = 0, match;
181 char *str, *str_match = 0;
182 transport_proto_t tp;
184 for (tp = 0; tp < vec_len (tp_vfts); tp++)
186 tp_vft = &tp_vfts[tp];
187 str = tp_vft->transport_options.name;
190 if (unformat_transport_str_match (input, str))
192 match = strlen (str);
193 if (match > longest_match)
196 longest_match = match;
203 (void) unformat (input, str_match);
211 format_transport_protos (u8 * s, va_list * args)
213 transport_proto_vft_t *tp_vft;
215 vec_foreach (tp_vft, tp_vfts)
216 s = format (s, "%s\n", tp_vft->transport_options.name);
222 transport_endpoint_lookup (transport_endpoint_table_t * ht, u8 proto,
223 ip46_address_t * ip, u16 port)
225 clib_bihash_kv_24_8_t kv;
228 kv.key[0] = ip->as_u64[0];
229 kv.key[1] = ip->as_u64[1];
230 kv.key[2] = (u64) port << 8 | (u64) proto;
232 rv = clib_bihash_search_inline_24_8 (ht, &kv);
236 return ENDPOINT_INVALID_INDEX;
240 transport_endpoint_table_add (transport_endpoint_table_t * ht, u8 proto,
241 transport_endpoint_t * te, u32 value)
243 clib_bihash_kv_24_8_t kv;
245 kv.key[0] = te->ip.as_u64[0];
246 kv.key[1] = te->ip.as_u64[1];
247 kv.key[2] = (u64) te->port << 8 | (u64) proto;
250 clib_bihash_add_del_24_8 (ht, &kv, 1);
254 transport_endpoint_table_del (transport_endpoint_table_t * ht, u8 proto,
255 transport_endpoint_t * te)
257 clib_bihash_kv_24_8_t kv;
259 kv.key[0] = te->ip.as_u64[0];
260 kv.key[1] = te->ip.as_u64[1];
261 kv.key[2] = (u64) te->port << 8 | (u64) proto;
263 clib_bihash_add_del_24_8 (ht, &kv, 0);
267 transport_register_protocol (transport_proto_t transport_proto,
268 const transport_proto_vft_t * vft,
269 fib_protocol_t fib_proto, u32 output_node)
271 u8 is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
273 vec_validate (tp_vfts, transport_proto);
274 tp_vfts[transport_proto] = *vft;
276 session_register_transport (transport_proto, vft, is_ip4, output_node);
280 transport_register_new_protocol (const transport_proto_vft_t * vft,
281 fib_protocol_t fib_proto, u32 output_node)
283 transport_proto_t transport_proto;
286 transport_proto = session_add_transport_proto ();
287 is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
289 vec_validate (tp_vfts, transport_proto);
290 tp_vfts[transport_proto] = *vft;
292 session_register_transport (transport_proto, vft, is_ip4, output_node);
294 return transport_proto;
298 * Get transport virtual function table
300 * @param type - session type (not protocol type)
302 transport_proto_vft_t *
303 transport_protocol_get_vft (transport_proto_t transport_proto)
305 if (transport_proto >= vec_len (tp_vfts))
307 return &tp_vfts[transport_proto];
310 transport_service_type_t
311 transport_protocol_service_type (transport_proto_t tp)
313 return tp_vfts[tp].transport_options.service_type;
316 transport_tx_fn_type_t
317 transport_protocol_tx_fn_type (transport_proto_t tp)
319 return tp_vfts[tp].transport_options.tx_type;
323 transport_cleanup (transport_proto_t tp, u32 conn_index, u8 thread_index)
325 tp_vfts[tp].cleanup (conn_index, thread_index);
329 transport_cleanup_half_open (transport_proto_t tp, u32 conn_index)
331 if (tp_vfts[tp].cleanup_ho)
332 tp_vfts[tp].cleanup_ho (conn_index);
336 transport_connect (transport_proto_t tp, transport_endpoint_cfg_t * tep)
338 if (PREDICT_FALSE (!tp_vfts[tp].connect))
339 return SESSION_E_TRANSPORT_NO_REG;
340 return tp_vfts[tp].connect (tep);
344 transport_half_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
346 if (tp_vfts[tp].half_close)
347 tp_vfts[tp].half_close (conn_index, thread_index);
351 transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
353 tp_vfts[tp].close (conn_index, thread_index);
357 transport_reset (transport_proto_t tp, u32 conn_index, u8 thread_index)
359 if (tp_vfts[tp].reset)
360 tp_vfts[tp].reset (conn_index, thread_index);
362 tp_vfts[tp].close (conn_index, thread_index);
366 transport_start_listen (transport_proto_t tp, u32 session_index,
367 transport_endpoint_cfg_t *tep)
369 if (PREDICT_FALSE (!tp_vfts[tp].start_listen))
370 return SESSION_E_TRANSPORT_NO_REG;
371 return tp_vfts[tp].start_listen (session_index, tep);
375 transport_stop_listen (transport_proto_t tp, u32 conn_index)
377 return tp_vfts[tp].stop_listen (conn_index);
381 transport_protocol_is_cl (transport_proto_t tp)
383 return (tp_vfts[tp].transport_options.service_type == TRANSPORT_SERVICE_CL);
387 default_get_transport_endpoint (transport_connection_t * tc,
388 transport_endpoint_t * tep, u8 is_lcl)
392 tep->port = tc->lcl_port;
393 tep->is_ip4 = tc->is_ip4;
394 clib_memcpy_fast (&tep->ip, &tc->lcl_ip, sizeof (tc->lcl_ip));
398 tep->port = tc->rmt_port;
399 tep->is_ip4 = tc->is_ip4;
400 clib_memcpy_fast (&tep->ip, &tc->rmt_ip, sizeof (tc->rmt_ip));
405 transport_get_endpoint (transport_proto_t tp, u32 conn_index,
406 u32 thread_index, transport_endpoint_t * tep,
409 if (tp_vfts[tp].get_transport_endpoint)
410 tp_vfts[tp].get_transport_endpoint (conn_index, thread_index, tep,
414 transport_connection_t *tc;
415 tc = transport_get_connection (tp, conn_index, thread_index);
416 default_get_transport_endpoint (tc, tep, is_lcl);
421 transport_get_listener_endpoint (transport_proto_t tp, u32 conn_index,
422 transport_endpoint_t * tep, u8 is_lcl)
424 if (tp_vfts[tp].get_transport_listener_endpoint)
425 tp_vfts[tp].get_transport_listener_endpoint (conn_index, tep, is_lcl);
428 transport_connection_t *tc;
429 tc = transport_get_listener (tp, conn_index);
430 default_get_transport_endpoint (tc, tep, is_lcl);
435 transport_connection_attribute (transport_proto_t tp, u32 conn_index,
436 u8 thread_index, u8 is_get,
437 transport_endpt_attr_t *attr)
439 if (!tp_vfts[tp].attribute)
442 return tp_vfts[tp].attribute (conn_index, thread_index, is_get, attr);
445 #define PORT_MASK ((1 << 16)- 1)
448 transport_endpoint_free (u32 tepi)
450 transport_main_t *tm = &tp_main;
451 pool_put_index (tm->local_endpoints, tepi);
454 always_inline local_endpoint_t *
455 transport_endpoint_alloc (void)
457 transport_main_t *tm = &tp_main;
458 local_endpoint_t *lep;
460 ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
462 pool_get_aligned_safe (tm->local_endpoints, lep, 0);
467 transport_cleanup_freelist (void)
469 transport_main_t *tm = &tp_main;
470 local_endpoint_t *lep;
473 clib_spinlock_lock (&tm->local_endpoints_lock);
475 vec_foreach (lep_indexp, tm->lcl_endpts_freelist)
477 lep = pool_elt_at_index (tm->local_endpoints, *lep_indexp);
479 /* Port re-shared after attempt to cleanup */
483 transport_endpoint_table_del (&tm->local_endpoints_table, lep->proto,
485 transport_endpoint_free (*lep_indexp);
488 vec_reset_length (tm->lcl_endpts_freelist);
490 tm->lcl_endpts_cleanup_pending = 0;
492 clib_spinlock_unlock (&tm->local_endpoints_lock);
496 transport_program_endpoint_cleanup (u32 lepi)
498 transport_main_t *tm = &tp_main;
501 /* All workers can free connections. Synchronize access to freelist */
502 clib_spinlock_lock (&tm->local_endpoints_lock);
504 vec_add1 (tm->lcl_endpts_freelist, lepi);
506 /* Avoid accumulating lots of endpoints for cleanup */
507 if (!tm->lcl_endpts_cleanup_pending &&
508 vec_len (tm->lcl_endpts_freelist) > 32)
510 tm->lcl_endpts_cleanup_pending = 1;
514 clib_spinlock_unlock (&tm->local_endpoints_lock);
517 session_send_rpc_evt_to_thread_force (transport_cl_thread (),
518 transport_cleanup_freelist, 0);
522 transport_release_local_endpoint (u8 proto, ip46_address_t *lcl_ip, u16 port)
524 transport_main_t *tm = &tp_main;
525 local_endpoint_t *lep;
528 lepi = transport_endpoint_lookup (&tm->local_endpoints_table, proto, lcl_ip,
529 clib_net_to_host_u16 (port));
530 if (lepi == ENDPOINT_INVALID_INDEX)
533 lep = pool_elt_at_index (tm->local_endpoints, lepi);
535 /* Local endpoint no longer in use, program cleanup */
536 if (!clib_atomic_sub_fetch (&lep->refcnt, 1))
538 transport_program_endpoint_cleanup (lepi);
542 /* Not an error, just in idication that endpoint was not cleaned up */
547 transport_endpoint_mark_used (u8 proto, ip46_address_t *ip, u16 port)
549 transport_main_t *tm = &tp_main;
550 local_endpoint_t *lep;
553 ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
556 transport_endpoint_lookup (&tm->local_endpoints_table, proto, ip, port);
557 if (tei != ENDPOINT_INVALID_INDEX)
558 return SESSION_E_PORTINUSE;
560 /* Pool reallocs with worker barrier */
561 lep = transport_endpoint_alloc ();
562 clib_memcpy_fast (&lep->ep.ip, ip, sizeof (*ip));
567 transport_endpoint_table_add (&tm->local_endpoints_table, proto, &lep->ep,
568 lep - tm->local_endpoints);
574 transport_share_local_endpoint (u8 proto, ip46_address_t * lcl_ip, u16 port)
576 transport_main_t *tm = &tp_main;
577 local_endpoint_t *lep;
580 /* Active opens should call this only from a control thread, which are also
581 * used to allocate and free ports. So, pool has only one writer and
582 * potentially many readers. Listeners are allocated with barrier */
583 lepi = transport_endpoint_lookup (&tm->local_endpoints_table, proto, lcl_ip,
584 clib_net_to_host_u16 (port));
585 if (lepi != ENDPOINT_INVALID_INDEX)
587 lep = pool_elt_at_index (tm->local_endpoints, lepi);
588 clib_atomic_add_fetch (&lep->refcnt, 1);
593 * Allocate local port and add if successful add entry to local endpoint
594 * table to mark the pair as used.
597 transport_alloc_local_port (u8 proto, ip46_address_t *lcl_addr,
598 transport_endpoint_cfg_t *rmt)
600 u16 min = 1024, max = 65535; /* XXX configurable ? */
601 transport_main_t *tm = &tp_main;
606 /* Only support active opens from one of ctrl threads */
607 ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
609 /* Search for first free slot */
610 for (tries = 0; tries < limit; tries++)
614 /* Find a port in the specified range */
617 port = random_u32 (&tm->port_allocator_seed) & PORT_MASK;
618 if (PREDICT_TRUE (port >= min && port < max))
622 if (!transport_endpoint_mark_used (proto, lcl_addr, port))
625 /* IP:port pair already in use, check if 6-tuple available */
626 if (session_lookup_connection (rmt->fib_index, lcl_addr, &rmt->ip, port,
627 rmt->port, proto, rmt->is_ip4))
630 /* 6-tuple is available so increment lcl endpoint refcount */
631 transport_share_local_endpoint (proto, lcl_addr, port);
638 static session_error_t
639 transport_get_interface_ip (u32 sw_if_index, u8 is_ip4, ip46_address_t * addr)
644 ip4 = ip_interface_get_first_ip (sw_if_index, 1);
646 return SESSION_E_NOIP;
647 addr->ip4.as_u32 = ip4->as_u32;
652 ip6 = ip_interface_get_first_ip (sw_if_index, 0);
654 return SESSION_E_NOIP;
655 clib_memcpy_fast (&addr->ip6, ip6, sizeof (*ip6));
660 static session_error_t
661 transport_find_local_ip_for_remote (u32 *sw_if_index,
662 transport_endpoint_t *rmt,
663 ip46_address_t *lcl_addr)
665 fib_node_index_t fei;
668 if (*sw_if_index == ENDPOINT_INVALID_INDEX)
670 /* Find a FIB path to the destination */
671 clib_memcpy_fast (&prefix.fp_addr, &rmt->ip, sizeof (rmt->ip));
672 prefix.fp_proto = rmt->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
673 prefix.fp_len = rmt->is_ip4 ? 32 : 128;
675 ASSERT (rmt->fib_index != ENDPOINT_INVALID_INDEX);
676 fei = fib_table_lookup (rmt->fib_index, &prefix);
678 /* Couldn't find route to destination. Bail out. */
679 if (fei == FIB_NODE_INDEX_INVALID)
680 return SESSION_E_NOROUTE;
682 *sw_if_index = fib_entry_get_resolving_interface (fei);
683 if (*sw_if_index == ENDPOINT_INVALID_INDEX)
684 return SESSION_E_NOINTF;
687 clib_memset (lcl_addr, 0, sizeof (*lcl_addr));
688 return transport_get_interface_ip (*sw_if_index, rmt->is_ip4, lcl_addr);
692 transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t * rmt_cfg,
693 ip46_address_t * lcl_addr, u16 * lcl_port)
695 transport_endpoint_t *rmt = (transport_endpoint_t *) rmt_cfg;
696 transport_main_t *tm = &tp_main;
697 session_error_t error;
701 * Find the local address
703 if (ip_is_zero (&rmt_cfg->peer.ip, rmt_cfg->peer.is_ip4))
705 error = transport_find_local_ip_for_remote (&rmt_cfg->peer.sw_if_index,
712 /* Assume session layer vetted this address */
713 clib_memcpy_fast (lcl_addr, &rmt_cfg->peer.ip,
714 sizeof (rmt_cfg->peer.ip));
717 /* Cleanup freelist if need be */
718 if (vec_len (tm->lcl_endpts_freelist))
719 transport_cleanup_freelist ();
722 * Allocate source port
724 if (rmt_cfg->peer.port == 0)
726 port = transport_alloc_local_port (proto, lcl_addr, rmt_cfg);
728 return SESSION_E_NOPORT;
733 port = clib_net_to_host_u16 (rmt_cfg->peer.port);
736 if (!transport_endpoint_mark_used (proto, lcl_addr, port))
739 /* IP:port pair already in use, check if 6-tuple available */
740 if (session_lookup_connection (rmt->fib_index, lcl_addr, &rmt->ip, port,
741 rmt->port, proto, rmt->is_ip4))
742 return SESSION_E_PORTINUSE;
744 /* 6-tuple is available so increment lcl endpoint refcount */
745 transport_share_local_endpoint (proto, lcl_addr, port);
754 format_clib_us_time (u8 * s, va_list * args)
756 clib_us_time_t t = va_arg (*args, clib_us_time_t);
758 s = format (s, "%u us", t);
760 s = format (s, "%.3f s", (f64) t * CLIB_US_TIME_PERIOD);
765 format_transport_pacer (u8 * s, va_list * args)
767 spacer_t *pacer = va_arg (*args, spacer_t *);
768 u32 thread_index = va_arg (*args, int);
769 clib_us_time_t now, diff;
771 now = transport_us_time_now (thread_index);
772 diff = now - pacer->last_update;
773 s = format (s, "rate %lu bucket %ld t/p %.3f last_update %U burst %u",
774 pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period,
775 format_clib_us_time, diff, pacer->max_burst);
780 spacer_max_burst (spacer_t * pacer, clib_us_time_t time_now)
782 u64 n_periods = (time_now - pacer->last_update);
785 if ((inc = (f32) n_periods * pacer->tokens_per_period) > 10)
787 pacer->last_update = time_now;
788 pacer->bucket = clib_min (pacer->bucket + inc, (i64) pacer->max_burst);
791 return pacer->bucket >= 0 ? pacer->max_burst : 0;
795 spacer_update_bucket (spacer_t * pacer, u32 bytes)
797 pacer->bucket -= bytes;
801 spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec,
802 clib_us_time_t rtt, clib_time_type_t sec_per_loop)
804 clib_us_time_t max_time;
806 ASSERT (rate_bytes_per_sec != 0);
807 pacer->bytes_per_sec = rate_bytes_per_sec;
808 pacer->tokens_per_period = rate_bytes_per_sec * CLIB_US_TIME_PERIOD;
810 /* Allow a min number of bursts per rtt, if their size is acceptable. Goal
811 * is to spread the sending of data over the rtt but to also allow for some
812 * coalescing that can potentially
813 * 1) reduce load on session layer by reducing scheduling frequency for a
815 * 2) optimize sending when tso if available
817 * Max "time-length" of a burst cannot be less than 1us or more than 1ms.
819 max_time = clib_max (rtt / TRANSPORT_PACER_BURSTS_PER_RTT,
820 (clib_us_time_t) (sec_per_loop * CLIB_US_TIME_FREQ));
821 max_time = clib_clamp (max_time, 1 /* 1us */ , 1000 /* 1ms */ );
822 pacer->max_burst = (rate_bytes_per_sec * max_time) * CLIB_US_TIME_PERIOD;
823 pacer->max_burst = clib_clamp (pacer->max_burst, TRANSPORT_PACER_MIN_BURST,
824 TRANSPORT_PACER_MAX_BURST);
828 spacer_pace_rate (spacer_t * pacer)
830 return pacer->bytes_per_sec;
834 spacer_reset (spacer_t * pacer, clib_us_time_t time_now, u64 bucket)
836 pacer->last_update = time_now;
837 pacer->bucket = bucket;
841 transport_connection_tx_pacer_reset (transport_connection_t * tc,
842 u64 rate_bytes_per_sec, u32 start_bucket,
845 spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt,
846 transport_seconds_per_loop (tc->thread_index));
847 spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index),
852 transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc,
855 spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), bucket);
859 transport_connection_tx_pacer_init (transport_connection_t * tc,
860 u64 rate_bytes_per_sec,
863 tc->flags |= TRANSPORT_CONNECTION_F_IS_TX_PACED;
864 transport_connection_tx_pacer_reset (tc, rate_bytes_per_sec,
865 initial_bucket, 1e6);
869 transport_connection_tx_pacer_update (transport_connection_t * tc,
870 u64 bytes_per_sec, clib_us_time_t rtt)
872 spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt,
873 transport_seconds_per_loop (tc->thread_index));
877 transport_connection_tx_pacer_burst (transport_connection_t * tc)
879 return spacer_max_burst (&tc->pacer,
880 transport_us_time_now (tc->thread_index));
884 transport_connection_tx_pacer_rate (transport_connection_t * tc)
886 return spacer_pace_rate (&tc->pacer);
890 transport_connection_update_tx_bytes (transport_connection_t * tc, u32 bytes)
892 if (transport_connection_is_tx_paced (tc))
893 spacer_update_bucket (&tc->pacer, bytes);
897 transport_connection_tx_pacer_update_bytes (transport_connection_t * tc,
900 spacer_update_bucket (&tc->pacer, bytes);
904 transport_update_pacer_time (u32 thread_index, clib_time_type_t now)
906 session_wrk_update_time (session_main_get_worker (thread_index), now);
910 transport_connection_reschedule (transport_connection_t * tc)
912 tc->flags &= ~TRANSPORT_CONNECTION_F_DESCHED;
913 transport_connection_tx_pacer_reset_bucket (tc, 0 /* bucket */);
914 if (transport_max_tx_dequeue (tc))
915 sesssion_reschedule_tx (tc);
918 session_t *s = session_get (tc->s_index, tc->thread_index);
919 svm_fifo_unset_event (s->tx_fifo);
920 if (svm_fifo_max_dequeue_cons (s->tx_fifo))
921 if (svm_fifo_set_event (s->tx_fifo))
922 sesssion_reschedule_tx (tc);
927 transport_fifos_init_ooo (transport_connection_t * tc)
929 session_t *s = session_get (tc->s_index, tc->thread_index);
930 svm_fifo_init_ooo_lookup (s->rx_fifo, 0 /* ooo enq */ );
931 svm_fifo_init_ooo_lookup (s->tx_fifo, 1 /* ooo deq */ );
935 transport_update_time (clib_time_type_t time_now, u8 thread_index)
937 transport_proto_vft_t *vft;
938 vec_foreach (vft, tp_vfts)
940 if (vft->update_time)
941 (vft->update_time) (time_now, thread_index);
946 transport_enable_disable (vlib_main_t * vm, u8 is_en)
948 transport_proto_vft_t *vft;
949 vec_foreach (vft, tp_vfts)
952 (vft->enable) (vm, is_en);
954 if (vft->update_time)
955 session_register_update_time_fn (vft->update_time, is_en);
960 transport_init (void)
962 vlib_thread_main_t *vtm = vlib_get_thread_main ();
963 session_main_t *smm = vnet_get_session_main ();
964 transport_main_t *tm = &tp_main;
967 if (smm->local_endpoints_table_buckets == 0)
968 smm->local_endpoints_table_buckets = 250000;
969 if (smm->local_endpoints_table_memory == 0)
970 smm->local_endpoints_table_memory = 512 << 20;
972 /* Initialize [port-allocator] random number seed */
973 tm->port_allocator_seed = (u32) clib_cpu_time_now ();
975 clib_bihash_init_24_8 (&tm->local_endpoints_table, "local endpoints table",
976 smm->local_endpoints_table_buckets,
977 smm->local_endpoints_table_memory);
978 clib_spinlock_init (&tm->local_endpoints_lock);
980 num_threads = 1 /* main thread */ + vtm->n_threads;
983 /* Main not polled if there are workers */
984 smm->transport_cl_thread = 1;
989 * fd.io coding-style-patch-verification: ON
992 * eval: (c-set-style "gnu")