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);
73 format_transport_connection (u8 * s, va_list * args)
75 u32 transport_proto = va_arg (*args, u32);
76 u32 conn_index = va_arg (*args, u32);
77 u32 thread_index = va_arg (*args, u32);
78 u32 verbose = va_arg (*args, u32);
79 transport_proto_vft_t *tp_vft;
80 transport_connection_t *tc;
83 tp_vft = transport_protocol_get_vft (transport_proto);
87 s = format (s, "%U", tp_vft->format_connection, conn_index, thread_index,
89 tc = tp_vft->get_connection (conn_index, thread_index);
90 if (tc && verbose > 1)
92 indent = format_get_indent (s) + 1;
93 if (transport_connection_is_tx_paced (tc))
94 s = format (s, "%Upacer: %U\n", format_white_space, indent,
95 format_transport_pacer, &tc->pacer, tc->thread_index);
96 s = format (s, "%Utransport: flags 0x%x\n", format_white_space, indent,
103 format_transport_listen_connection (u8 * s, va_list * args)
105 u32 transport_proto = va_arg (*args, u32);
106 transport_proto_vft_t *tp_vft;
108 tp_vft = transport_protocol_get_vft (transport_proto);
112 s = (tp_vft->format_listener) (s, args);
117 format_transport_half_open_connection (u8 * s, va_list * args)
119 u32 transport_proto = va_arg (*args, u32);
120 u32 ho_index = va_arg (*args, u32);
121 transport_proto_vft_t *tp_vft;
123 tp_vft = transport_protocol_get_vft (transport_proto);
127 s = format (s, "%U", tp_vft->format_half_open, ho_index);
132 unformat_transport_str_match (unformat_input_t * input, const char *str)
136 if (strlen (str) > vec_len (input->buffer) - input->index)
139 for (i = 0; i < strlen (str); i++)
141 if (input->buffer[i + input->index] != str[i])
148 unformat_transport_proto (unformat_input_t * input, va_list * args)
150 u32 *proto = va_arg (*args, u32 *);
151 transport_proto_vft_t *tp_vft;
152 u8 longest_match = 0, match;
153 char *str, *str_match = 0;
154 transport_proto_t tp;
156 for (tp = 0; tp < vec_len (tp_vfts); tp++)
158 tp_vft = &tp_vfts[tp];
159 str = tp_vft->transport_options.name;
162 if (unformat_transport_str_match (input, str))
164 match = strlen (str);
165 if (match > longest_match)
168 longest_match = match;
175 (void) unformat (input, str_match);
183 format_transport_protos (u8 * s, va_list * args)
185 transport_proto_vft_t *tp_vft;
187 vec_foreach (tp_vft, tp_vfts)
188 s = format (s, "%s\n", tp_vft->transport_options.name);
194 transport_endpoint_lookup (transport_endpoint_table_t * ht, u8 proto,
195 ip46_address_t * ip, u16 port)
197 clib_bihash_kv_24_8_t kv;
200 kv.key[0] = ip->as_u64[0];
201 kv.key[1] = ip->as_u64[1];
202 kv.key[2] = (u64) port << 8 | (u64) proto;
204 rv = clib_bihash_search_inline_24_8 (ht, &kv);
208 return ENDPOINT_INVALID_INDEX;
212 transport_endpoint_table_add (transport_endpoint_table_t * ht, u8 proto,
213 transport_endpoint_t * te, u32 value)
215 clib_bihash_kv_24_8_t kv;
217 kv.key[0] = te->ip.as_u64[0];
218 kv.key[1] = te->ip.as_u64[1];
219 kv.key[2] = (u64) te->port << 8 | (u64) proto;
222 clib_bihash_add_del_24_8 (ht, &kv, 1);
226 transport_endpoint_table_del (transport_endpoint_table_t * ht, u8 proto,
227 transport_endpoint_t * te)
229 clib_bihash_kv_24_8_t kv;
231 kv.key[0] = te->ip.as_u64[0];
232 kv.key[1] = te->ip.as_u64[1];
233 kv.key[2] = (u64) te->port << 8 | (u64) proto;
235 clib_bihash_add_del_24_8 (ht, &kv, 0);
239 transport_register_protocol (transport_proto_t transport_proto,
240 const transport_proto_vft_t * vft,
241 fib_protocol_t fib_proto, u32 output_node)
243 u8 is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
245 vec_validate (tp_vfts, transport_proto);
246 tp_vfts[transport_proto] = *vft;
248 session_register_transport (transport_proto, vft, is_ip4, output_node);
252 transport_register_new_protocol (const transport_proto_vft_t * vft,
253 fib_protocol_t fib_proto, u32 output_node)
255 transport_proto_t transport_proto;
258 transport_proto = session_add_transport_proto ();
259 is_ip4 = fib_proto == FIB_PROTOCOL_IP4;
261 vec_validate (tp_vfts, transport_proto);
262 tp_vfts[transport_proto] = *vft;
264 session_register_transport (transport_proto, vft, is_ip4, output_node);
266 return transport_proto;
270 * Get transport virtual function table
272 * @param type - session type (not protocol type)
274 transport_proto_vft_t *
275 transport_protocol_get_vft (transport_proto_t transport_proto)
277 if (transport_proto >= vec_len (tp_vfts))
279 return &tp_vfts[transport_proto];
282 transport_service_type_t
283 transport_protocol_service_type (transport_proto_t tp)
285 return tp_vfts[tp].transport_options.service_type;
288 transport_tx_fn_type_t
289 transport_protocol_tx_fn_type (transport_proto_t tp)
291 return tp_vfts[tp].transport_options.tx_type;
295 transport_cleanup (transport_proto_t tp, u32 conn_index, u8 thread_index)
297 tp_vfts[tp].cleanup (conn_index, thread_index);
301 transport_cleanup_half_open (transport_proto_t tp, u32 conn_index)
303 if (tp_vfts[tp].cleanup_ho)
304 tp_vfts[tp].cleanup_ho (conn_index);
308 transport_connect (transport_proto_t tp, transport_endpoint_cfg_t * tep)
310 if (PREDICT_FALSE (!tp_vfts[tp].connect))
311 return SESSION_E_TRANSPORT_NO_REG;
312 return tp_vfts[tp].connect (tep);
316 transport_half_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
318 if (tp_vfts[tp].half_close)
319 tp_vfts[tp].half_close (conn_index, thread_index);
323 transport_close (transport_proto_t tp, u32 conn_index, u8 thread_index)
325 tp_vfts[tp].close (conn_index, thread_index);
329 transport_reset (transport_proto_t tp, u32 conn_index, u8 thread_index)
331 if (tp_vfts[tp].reset)
332 tp_vfts[tp].reset (conn_index, thread_index);
334 tp_vfts[tp].close (conn_index, thread_index);
338 transport_start_listen (transport_proto_t tp, u32 session_index,
339 transport_endpoint_cfg_t *tep)
341 if (PREDICT_FALSE (!tp_vfts[tp].start_listen))
342 return SESSION_E_TRANSPORT_NO_REG;
343 return tp_vfts[tp].start_listen (session_index, tep);
347 transport_stop_listen (transport_proto_t tp, u32 conn_index)
349 return tp_vfts[tp].stop_listen (conn_index);
353 transport_protocol_is_cl (transport_proto_t tp)
355 return (tp_vfts[tp].transport_options.service_type == TRANSPORT_SERVICE_CL);
359 default_get_transport_endpoint (transport_connection_t * tc,
360 transport_endpoint_t * tep, u8 is_lcl)
364 tep->port = tc->lcl_port;
365 tep->is_ip4 = tc->is_ip4;
366 clib_memcpy_fast (&tep->ip, &tc->lcl_ip, sizeof (tc->lcl_ip));
370 tep->port = tc->rmt_port;
371 tep->is_ip4 = tc->is_ip4;
372 clib_memcpy_fast (&tep->ip, &tc->rmt_ip, sizeof (tc->rmt_ip));
377 transport_get_endpoint (transport_proto_t tp, u32 conn_index,
378 u32 thread_index, transport_endpoint_t * tep,
381 if (tp_vfts[tp].get_transport_endpoint)
382 tp_vfts[tp].get_transport_endpoint (conn_index, thread_index, tep,
386 transport_connection_t *tc;
387 tc = transport_get_connection (tp, conn_index, thread_index);
388 default_get_transport_endpoint (tc, tep, is_lcl);
393 transport_get_listener_endpoint (transport_proto_t tp, u32 conn_index,
394 transport_endpoint_t * tep, u8 is_lcl)
396 if (tp_vfts[tp].get_transport_listener_endpoint)
397 tp_vfts[tp].get_transport_listener_endpoint (conn_index, tep, is_lcl);
400 transport_connection_t *tc;
401 tc = transport_get_listener (tp, conn_index);
402 default_get_transport_endpoint (tc, tep, is_lcl);
407 transport_connection_attribute (transport_proto_t tp, u32 conn_index,
408 u8 thread_index, u8 is_get,
409 transport_endpt_attr_t *attr)
411 if (!tp_vfts[tp].attribute)
414 return tp_vfts[tp].attribute (conn_index, thread_index, is_get, attr);
417 #define PORT_MASK ((1 << 16)- 1)
420 transport_endpoint_free (u32 tepi)
422 transport_main_t *tm = &tp_main;
423 pool_put_index (tm->local_endpoints, tepi);
426 always_inline local_endpoint_t *
427 transport_endpoint_alloc (void)
429 transport_main_t *tm = &tp_main;
430 local_endpoint_t *lep;
432 ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
434 pool_get_aligned_safe (tm->local_endpoints, lep, 0);
439 transport_cleanup_freelist (void)
441 transport_main_t *tm = &tp_main;
442 local_endpoint_t *lep;
445 clib_spinlock_lock (&tm->local_endpoints_lock);
447 vec_foreach (lep_indexp, tm->lcl_endpts_freelist)
449 lep = pool_elt_at_index (tm->local_endpoints, *lep_indexp);
451 /* Port re-shared after attempt to cleanup */
455 transport_endpoint_table_del (&tm->local_endpoints_table, lep->proto,
457 transport_endpoint_free (*lep_indexp);
460 vec_reset_length (tm->lcl_endpts_freelist);
462 tm->lcl_endpts_cleanup_pending = 0;
464 clib_spinlock_unlock (&tm->local_endpoints_lock);
468 transport_program_endpoint_cleanup (u32 lepi)
470 transport_main_t *tm = &tp_main;
473 /* All workers can free connections. Synchronize access to freelist */
474 clib_spinlock_lock (&tm->local_endpoints_lock);
476 vec_add1 (tm->lcl_endpts_freelist, lepi);
478 /* Avoid accumulating lots of endpoints for cleanup */
479 if (!tm->lcl_endpts_cleanup_pending &&
480 vec_len (tm->lcl_endpts_freelist) > 32)
482 tm->lcl_endpts_cleanup_pending = 1;
486 clib_spinlock_unlock (&tm->local_endpoints_lock);
489 session_send_rpc_evt_to_thread_force (0, transport_cleanup_freelist, 0);
493 transport_release_local_endpoint (u8 proto, ip46_address_t *lcl_ip, u16 port)
495 transport_main_t *tm = &tp_main;
496 local_endpoint_t *lep;
499 lepi = transport_endpoint_lookup (&tm->local_endpoints_table, proto, lcl_ip,
500 clib_net_to_host_u16 (port));
501 if (lepi == ENDPOINT_INVALID_INDEX)
504 lep = pool_elt_at_index (tm->local_endpoints, lepi);
506 /* Local endpoint no longer in use, program cleanup */
507 if (!clib_atomic_sub_fetch (&lep->refcnt, 1))
509 transport_program_endpoint_cleanup (lepi);
513 /* Not an error, just in idication that endpoint was not cleaned up */
518 transport_endpoint_mark_used (u8 proto, ip46_address_t *ip, u16 port)
520 transport_main_t *tm = &tp_main;
521 local_endpoint_t *lep;
524 ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
527 transport_endpoint_lookup (&tm->local_endpoints_table, proto, ip, port);
528 if (tei != ENDPOINT_INVALID_INDEX)
529 return SESSION_E_PORTINUSE;
531 /* Pool reallocs with worker barrier */
532 lep = transport_endpoint_alloc ();
533 clib_memcpy_fast (&lep->ep.ip, ip, sizeof (*ip));
538 transport_endpoint_table_add (&tm->local_endpoints_table, proto, &lep->ep,
539 lep - tm->local_endpoints);
545 transport_share_local_endpoint (u8 proto, ip46_address_t * lcl_ip, u16 port)
547 transport_main_t *tm = &tp_main;
548 local_endpoint_t *lep;
551 /* Active opens should call this only from a control thread, which are also
552 * used to allocate and free ports. So, pool has only one writer and
553 * potentially many readers. Listeners are allocated with barrier */
554 lepi = transport_endpoint_lookup (&tm->local_endpoints_table, proto, lcl_ip,
555 clib_net_to_host_u16 (port));
556 if (lepi != ENDPOINT_INVALID_INDEX)
558 lep = pool_elt_at_index (tm->local_endpoints, lepi);
559 clib_atomic_add_fetch (&lep->refcnt, 1);
564 * Allocate local port and add if successful add entry to local endpoint
565 * table to mark the pair as used.
568 transport_alloc_local_port (u8 proto, ip46_address_t * ip)
570 u16 min = 1024, max = 65535; /* XXX configurable ? */
571 transport_main_t *tm = &tp_main;
576 /* Only support active opens from one of ctrl threads */
577 ASSERT (vlib_get_thread_index () <= transport_cl_thread ());
579 /* Cleanup freelist if need be */
580 if (vec_len (tm->lcl_endpts_freelist))
581 transport_cleanup_freelist ();
583 /* Search for first free slot */
584 for (tries = 0; tries < limit; tries++)
588 /* Find a port in the specified range */
591 port = random_u32 (&tm->port_allocator_seed) & PORT_MASK;
592 if (PREDICT_TRUE (port >= min && port < max))
596 if (!transport_endpoint_mark_used (proto, ip, port))
602 static session_error_t
603 transport_get_interface_ip (u32 sw_if_index, u8 is_ip4, ip46_address_t * addr)
608 ip4 = ip_interface_get_first_ip (sw_if_index, 1);
610 return SESSION_E_NOIP;
611 addr->ip4.as_u32 = ip4->as_u32;
616 ip6 = ip_interface_get_first_ip (sw_if_index, 0);
618 return SESSION_E_NOIP;
619 clib_memcpy_fast (&addr->ip6, ip6, sizeof (*ip6));
624 static session_error_t
625 transport_find_local_ip_for_remote (u32 *sw_if_index,
626 transport_endpoint_t *rmt,
627 ip46_address_t *lcl_addr)
629 fib_node_index_t fei;
632 if (*sw_if_index == ENDPOINT_INVALID_INDEX)
634 /* Find a FIB path to the destination */
635 clib_memcpy_fast (&prefix.fp_addr, &rmt->ip, sizeof (rmt->ip));
636 prefix.fp_proto = rmt->is_ip4 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
637 prefix.fp_len = rmt->is_ip4 ? 32 : 128;
639 ASSERT (rmt->fib_index != ENDPOINT_INVALID_INDEX);
640 fei = fib_table_lookup (rmt->fib_index, &prefix);
642 /* Couldn't find route to destination. Bail out. */
643 if (fei == FIB_NODE_INDEX_INVALID)
644 return SESSION_E_NOROUTE;
646 *sw_if_index = fib_entry_get_resolving_interface (fei);
647 if (*sw_if_index == ENDPOINT_INVALID_INDEX)
648 return SESSION_E_NOINTF;
651 clib_memset (lcl_addr, 0, sizeof (*lcl_addr));
652 return transport_get_interface_ip (*sw_if_index, rmt->is_ip4, lcl_addr);
656 transport_alloc_local_endpoint (u8 proto, transport_endpoint_cfg_t * rmt_cfg,
657 ip46_address_t * lcl_addr, u16 * lcl_port)
659 transport_endpoint_t *rmt = (transport_endpoint_t *) rmt_cfg;
660 session_error_t error;
664 * Find the local address
666 if (ip_is_zero (&rmt_cfg->peer.ip, rmt_cfg->peer.is_ip4))
668 error = transport_find_local_ip_for_remote (&rmt_cfg->peer.sw_if_index,
675 /* Assume session layer vetted this address */
676 clib_memcpy_fast (lcl_addr, &rmt_cfg->peer.ip,
677 sizeof (rmt_cfg->peer.ip));
681 * Allocate source port
683 if (rmt_cfg->peer.port == 0)
685 port = transport_alloc_local_port (proto, lcl_addr);
687 return SESSION_E_NOPORT;
692 port = clib_net_to_host_u16 (rmt_cfg->peer.port);
695 return transport_endpoint_mark_used (proto, lcl_addr, port);
702 format_clib_us_time (u8 * s, va_list * args)
704 clib_us_time_t t = va_arg (*args, clib_us_time_t);
706 s = format (s, "%u us", t);
708 s = format (s, "%.3f s", (f64) t * CLIB_US_TIME_PERIOD);
713 format_transport_pacer (u8 * s, va_list * args)
715 spacer_t *pacer = va_arg (*args, spacer_t *);
716 u32 thread_index = va_arg (*args, int);
717 clib_us_time_t now, diff;
719 now = transport_us_time_now (thread_index);
720 diff = now - pacer->last_update;
721 s = format (s, "rate %lu bucket %ld t/p %.3f last_update %U burst %u",
722 pacer->bytes_per_sec, pacer->bucket, pacer->tokens_per_period,
723 format_clib_us_time, diff, pacer->max_burst);
728 spacer_max_burst (spacer_t * pacer, clib_us_time_t time_now)
730 u64 n_periods = (time_now - pacer->last_update);
733 if ((inc = (f32) n_periods * pacer->tokens_per_period) > 10)
735 pacer->last_update = time_now;
736 pacer->bucket = clib_min (pacer->bucket + inc, (i64) pacer->max_burst);
739 return pacer->bucket >= 0 ? pacer->max_burst : 0;
743 spacer_update_bucket (spacer_t * pacer, u32 bytes)
745 pacer->bucket -= bytes;
749 spacer_set_pace_rate (spacer_t * pacer, u64 rate_bytes_per_sec,
750 clib_us_time_t rtt, clib_time_type_t sec_per_loop)
752 clib_us_time_t max_time;
754 ASSERT (rate_bytes_per_sec != 0);
755 pacer->bytes_per_sec = rate_bytes_per_sec;
756 pacer->tokens_per_period = rate_bytes_per_sec * CLIB_US_TIME_PERIOD;
758 /* Allow a min number of bursts per rtt, if their size is acceptable. Goal
759 * is to spread the sending of data over the rtt but to also allow for some
760 * coalescing that can potentially
761 * 1) reduce load on session layer by reducing scheduling frequency for a
763 * 2) optimize sending when tso if available
765 * Max "time-length" of a burst cannot be less than 1us or more than 1ms.
767 max_time = clib_max (rtt / TRANSPORT_PACER_BURSTS_PER_RTT,
768 (clib_us_time_t) (sec_per_loop * CLIB_US_TIME_FREQ));
769 max_time = clib_clamp (max_time, 1 /* 1us */ , 1000 /* 1ms */ );
770 pacer->max_burst = (rate_bytes_per_sec * max_time) * CLIB_US_TIME_PERIOD;
771 pacer->max_burst = clib_clamp (pacer->max_burst, TRANSPORT_PACER_MIN_BURST,
772 TRANSPORT_PACER_MAX_BURST);
776 spacer_pace_rate (spacer_t * pacer)
778 return pacer->bytes_per_sec;
782 spacer_reset (spacer_t * pacer, clib_us_time_t time_now, u64 bucket)
784 pacer->last_update = time_now;
785 pacer->bucket = bucket;
789 transport_connection_tx_pacer_reset (transport_connection_t * tc,
790 u64 rate_bytes_per_sec, u32 start_bucket,
793 spacer_set_pace_rate (&tc->pacer, rate_bytes_per_sec, rtt,
794 transport_seconds_per_loop (tc->thread_index));
795 spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index),
800 transport_connection_tx_pacer_reset_bucket (transport_connection_t * tc,
803 spacer_reset (&tc->pacer, transport_us_time_now (tc->thread_index), bucket);
807 transport_connection_tx_pacer_init (transport_connection_t * tc,
808 u64 rate_bytes_per_sec,
811 tc->flags |= TRANSPORT_CONNECTION_F_IS_TX_PACED;
812 transport_connection_tx_pacer_reset (tc, rate_bytes_per_sec,
813 initial_bucket, 1e6);
817 transport_connection_tx_pacer_update (transport_connection_t * tc,
818 u64 bytes_per_sec, clib_us_time_t rtt)
820 spacer_set_pace_rate (&tc->pacer, bytes_per_sec, rtt,
821 transport_seconds_per_loop (tc->thread_index));
825 transport_connection_tx_pacer_burst (transport_connection_t * tc)
827 return spacer_max_burst (&tc->pacer,
828 transport_us_time_now (tc->thread_index));
832 transport_connection_tx_pacer_rate (transport_connection_t * tc)
834 return spacer_pace_rate (&tc->pacer);
838 transport_connection_update_tx_bytes (transport_connection_t * tc, u32 bytes)
840 if (transport_connection_is_tx_paced (tc))
841 spacer_update_bucket (&tc->pacer, bytes);
845 transport_connection_tx_pacer_update_bytes (transport_connection_t * tc,
848 spacer_update_bucket (&tc->pacer, bytes);
852 transport_update_pacer_time (u32 thread_index, clib_time_type_t now)
854 session_wrk_update_time (session_main_get_worker (thread_index), now);
858 transport_connection_reschedule (transport_connection_t * tc)
860 tc->flags &= ~TRANSPORT_CONNECTION_F_DESCHED;
861 transport_connection_tx_pacer_reset_bucket (tc, 0 /* bucket */);
862 if (transport_max_tx_dequeue (tc))
863 sesssion_reschedule_tx (tc);
866 session_t *s = session_get (tc->s_index, tc->thread_index);
867 svm_fifo_unset_event (s->tx_fifo);
868 if (svm_fifo_max_dequeue_cons (s->tx_fifo))
869 if (svm_fifo_set_event (s->tx_fifo))
870 sesssion_reschedule_tx (tc);
875 transport_fifos_init_ooo (transport_connection_t * tc)
877 session_t *s = session_get (tc->s_index, tc->thread_index);
878 svm_fifo_init_ooo_lookup (s->rx_fifo, 0 /* ooo enq */ );
879 svm_fifo_init_ooo_lookup (s->tx_fifo, 1 /* ooo deq */ );
883 transport_update_time (clib_time_type_t time_now, u8 thread_index)
885 transport_proto_vft_t *vft;
886 vec_foreach (vft, tp_vfts)
888 if (vft->update_time)
889 (vft->update_time) (time_now, thread_index);
894 transport_enable_disable (vlib_main_t * vm, u8 is_en)
896 transport_proto_vft_t *vft;
897 vec_foreach (vft, tp_vfts)
900 (vft->enable) (vm, is_en);
902 if (vft->update_time)
903 session_register_update_time_fn (vft->update_time, is_en);
908 transport_init (void)
910 vlib_thread_main_t *vtm = vlib_get_thread_main ();
911 session_main_t *smm = vnet_get_session_main ();
912 transport_main_t *tm = &tp_main;
915 if (smm->local_endpoints_table_buckets == 0)
916 smm->local_endpoints_table_buckets = 250000;
917 if (smm->local_endpoints_table_memory == 0)
918 smm->local_endpoints_table_memory = 512 << 20;
920 /* Initialize [port-allocator] random number seed */
921 tm->port_allocator_seed = (u32) clib_cpu_time_now ();
923 clib_bihash_init_24_8 (&tm->local_endpoints_table, "local endpoints table",
924 smm->local_endpoints_table_buckets,
925 smm->local_endpoints_table_memory);
926 clib_spinlock_init (&tm->local_endpoints_lock);
928 num_threads = 1 /* main thread */ + vtm->n_threads;
931 /* Main not polled if there are workers */
932 smm->transport_cl_thread = 1;
937 * fd.io coding-style-patch-verification: ON
940 * eval: (c-set-style "gnu")