blob: d12d2d31a8fc420352fe13894a8d07926e3e5911 [file] [log] [blame]
Florin Coras99368312018-08-02 10:45:44 -07001/*
Florin Coras5e062572019-03-14 19:07:51 -07002 * Copyright (c) 2018-2019 Cisco and/or its affiliates.
Florin Coras99368312018-08-02 10:45:44 -07003 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this
5 * You may obtain a copy of the License at:
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
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.
14 */
15
16#include <vcl/vcl_private.h>
17
Florin Coras3348a4c2018-09-07 17:09:35 -070018static pthread_key_t vcl_worker_stop_key;
Florin Coras134a9962018-08-28 11:32:04 -070019
Florin Coras99368312018-08-02 10:45:44 -070020vcl_mq_evt_conn_t *
Florin Coras134a9962018-08-28 11:32:04 -070021vcl_mq_evt_conn_alloc (vcl_worker_t * wrk)
Florin Coras99368312018-08-02 10:45:44 -070022{
23 vcl_mq_evt_conn_t *mqc;
Florin Coras134a9962018-08-28 11:32:04 -070024 pool_get (wrk->mq_evt_conns, mqc);
Florin Coras99368312018-08-02 10:45:44 -070025 memset (mqc, 0, sizeof (*mqc));
26 return mqc;
27}
28
29u32
Florin Coras134a9962018-08-28 11:32:04 -070030vcl_mq_evt_conn_index (vcl_worker_t * wrk, vcl_mq_evt_conn_t * mqc)
Florin Coras99368312018-08-02 10:45:44 -070031{
Florin Coras134a9962018-08-28 11:32:04 -070032 return (mqc - wrk->mq_evt_conns);
Florin Coras99368312018-08-02 10:45:44 -070033}
34
35vcl_mq_evt_conn_t *
Florin Coras134a9962018-08-28 11:32:04 -070036vcl_mq_evt_conn_get (vcl_worker_t * wrk, u32 mq_conn_idx)
Florin Coras99368312018-08-02 10:45:44 -070037{
Florin Coras134a9962018-08-28 11:32:04 -070038 return pool_elt_at_index (wrk->mq_evt_conns, mq_conn_idx);
Florin Coras99368312018-08-02 10:45:44 -070039}
40
41int
Florin Coras134a9962018-08-28 11:32:04 -070042vcl_mq_epoll_add_evfd (vcl_worker_t * wrk, svm_msg_q_t * mq)
Florin Coras99368312018-08-02 10:45:44 -070043{
44 struct epoll_event e = { 0 };
45 vcl_mq_evt_conn_t *mqc;
46 u32 mqc_index;
47 int mq_fd;
48
Florin Coras86f12322021-01-22 15:05:14 -080049 mq_fd = svm_msg_q_get_eventfd (mq);
Florin Coras99368312018-08-02 10:45:44 -070050
Florin Coras134a9962018-08-28 11:32:04 -070051 if (wrk->mqs_epfd < 0 || mq_fd == -1)
Florin Coras99368312018-08-02 10:45:44 -070052 return -1;
53
Florin Coras134a9962018-08-28 11:32:04 -070054 mqc = vcl_mq_evt_conn_alloc (wrk);
55 mqc_index = vcl_mq_evt_conn_index (wrk, mqc);
Florin Coras99368312018-08-02 10:45:44 -070056 mqc->mq_fd = mq_fd;
57 mqc->mq = mq;
58
59 e.events = EPOLLIN;
60 e.data.u32 = mqc_index;
Florin Coras134a9962018-08-28 11:32:04 -070061 if (epoll_ctl (wrk->mqs_epfd, EPOLL_CTL_ADD, mq_fd, &e) < 0)
Florin Coras99368312018-08-02 10:45:44 -070062 {
Florin Coras5e062572019-03-14 19:07:51 -070063 VDBG (0, "failed to add mq eventfd to mq epoll fd");
Florin Coras99368312018-08-02 10:45:44 -070064 return -1;
65 }
66
67 return mqc_index;
68}
69
70int
Florin Coras134a9962018-08-28 11:32:04 -070071vcl_mq_epoll_del_evfd (vcl_worker_t * wrk, u32 mqc_index)
Florin Coras99368312018-08-02 10:45:44 -070072{
73 vcl_mq_evt_conn_t *mqc;
74
Florin Coras134a9962018-08-28 11:32:04 -070075 if (wrk->mqs_epfd || mqc_index == ~0)
Florin Coras99368312018-08-02 10:45:44 -070076 return -1;
77
Florin Coras134a9962018-08-28 11:32:04 -070078 mqc = vcl_mq_evt_conn_get (wrk, mqc_index);
79 if (epoll_ctl (wrk->mqs_epfd, EPOLL_CTL_DEL, mqc->mq_fd, 0) < 0)
Florin Coras99368312018-08-02 10:45:44 -070080 {
Florin Coras5e062572019-03-14 19:07:51 -070081 VDBG (0, "failed to del mq eventfd to mq epoll fd");
Florin Coras99368312018-08-02 10:45:44 -070082 return -1;
83 }
84 return 0;
85}
86
Florin Coras134a9962018-08-28 11:32:04 -070087static vcl_worker_t *
88vcl_worker_alloc (void)
89{
90 vcl_worker_t *wrk;
91 pool_get (vcm->workers, wrk);
92 memset (wrk, 0, sizeof (*wrk));
93 wrk->wrk_index = wrk - vcm->workers;
Florin Coras01f3f892018-12-02 12:45:53 -080094 wrk->forked_child = ~0;
Florin Coras134a9962018-08-28 11:32:04 -070095 return wrk;
96}
97
98static void
99vcl_worker_free (vcl_worker_t * wrk)
100{
101 pool_put (vcm->workers, wrk);
102}
103
Florin Coras935ce752020-09-08 22:43:47 -0700104int
105vcl_api_app_worker_add (void)
106{
107 if (vcm->cfg.vpp_app_socket_api)
108 return vcl_sapi_app_worker_add ();
109
110 return vcl_bapi_app_worker_add ();
111}
112
113void
114vcl_api_app_worker_del (vcl_worker_t * wrk)
115{
116 if (vcm->cfg.vpp_app_socket_api)
117 return vcl_sapi_app_worker_del (wrk);
118
119 vcl_bapi_app_worker_del (wrk);
120}
121
Florin Coras47c40e22018-11-26 17:01:36 -0800122void
Florin Coras01f3f892018-12-02 12:45:53 -0800123vcl_worker_cleanup (vcl_worker_t * wrk, u8 notify_vpp)
Florin Coras134a9962018-08-28 11:32:04 -0700124{
Florin Coras47c40e22018-11-26 17:01:36 -0800125 clib_spinlock_lock (&vcm->workers_lock);
Florin Coras940f78f2018-11-30 12:11:20 -0800126 if (notify_vpp)
Florin Coras935ce752020-09-08 22:43:47 -0700127 vcl_api_app_worker_del (wrk);
Florin Coras64cf4592019-12-12 12:01:24 -0800128
Florin Coras940f78f2018-11-30 12:11:20 -0800129 if (wrk->mqs_epfd > 0)
130 close (wrk->mqs_epfd);
Florin Corascba215d2021-06-16 14:41:01 -0700131 pool_free (wrk->sessions);
132 pool_free (wrk->mq_evt_conns);
Florin Coras134a9962018-08-28 11:32:04 -0700133 hash_free (wrk->session_index_by_vpp_handles);
Florin Coras134a9962018-08-28 11:32:04 -0700134 vec_free (wrk->mq_events);
135 vec_free (wrk->mq_msg_vector);
Florin Corascba215d2021-06-16 14:41:01 -0700136 vec_free (wrk->unhandled_evts_vector);
137 vec_free (wrk->pending_session_wrk_updates);
138 clib_bitmap_free (wrk->rd_bitmap);
139 clib_bitmap_free (wrk->wr_bitmap);
140 clib_bitmap_free (wrk->ex_bitmap);
Florin Coras134a9962018-08-28 11:32:04 -0700141 vcl_worker_free (wrk);
Florin Coras47c40e22018-11-26 17:01:36 -0800142 clib_spinlock_unlock (&vcm->workers_lock);
Florin Coras47c40e22018-11-26 17:01:36 -0800143}
144
145static void
146vcl_worker_cleanup_cb (void *arg)
147{
Florin Coras70e21972021-04-07 00:16:37 -0700148 vcl_worker_t *wrk;
149 u32 wrk_index;
150
151 wrk_index = vcl_get_worker_index ();
152 wrk = vcl_worker_get_if_valid (wrk_index);
153 if (!wrk)
154 return;
155
Florin Coras01f3f892018-12-02 12:45:53 -0800156 vcl_worker_cleanup (wrk, 1 /* notify vpp */ );
157 vcl_set_worker_index (~0);
Florin Coras940f78f2018-11-30 12:11:20 -0800158 VDBG (0, "cleaned up worker %u", wrk_index);
Florin Coras134a9962018-08-28 11:32:04 -0700159}
160
161vcl_worker_t *
162vcl_worker_alloc_and_init ()
163{
164 vcl_worker_t *wrk;
165
166 /* This was initialized already */
167 if (vcl_get_worker_index () != ~0)
168 return 0;
169
Florin Coras94fef3e2021-09-23 15:08:05 -0700170 /* Grab lock before selecting mem thread index */
171 clib_spinlock_lock (&vcm->workers_lock);
172
Florin Corasd2c9e702019-08-02 10:53:01 -0700173 /* Use separate heap map entry for worker */
174 clib_mem_set_thread_index ();
175
Florin Corasde9f08b2018-09-07 14:32:58 -0700176 if (pool_elts (vcm->workers) == vcm->cfg.max_workers)
177 {
178 VDBG (0, "max-workers %u limit reached", vcm->cfg.max_workers);
Florin Coras94fef3e2021-09-23 15:08:05 -0700179 wrk = 0;
180 goto done;
Florin Corasde9f08b2018-09-07 14:32:58 -0700181 }
182
Florin Coras134a9962018-08-28 11:32:04 -0700183 wrk = vcl_worker_alloc ();
184 vcl_set_worker_index (wrk->wrk_index);
Florin Coras47c40e22018-11-26 17:01:36 -0800185 wrk->thread_id = pthread_self ();
186 wrk->current_pid = getpid ();
Florin Coras134a9962018-08-28 11:32:04 -0700187
188 wrk->mqs_epfd = -1;
189 if (vcm->cfg.use_mq_eventfd)
190 {
hanlina3a48962020-07-13 11:09:15 +0800191 wrk->vcl_needs_real_epoll = 1;
Florin Coras134a9962018-08-28 11:32:04 -0700192 wrk->mqs_epfd = epoll_create (1);
hanlina3a48962020-07-13 11:09:15 +0800193 wrk->vcl_needs_real_epoll = 0;
Florin Coras134a9962018-08-28 11:32:04 -0700194 if (wrk->mqs_epfd < 0)
195 {
196 clib_unix_warning ("epoll_create() returned");
Florin Coras47c40e22018-11-26 17:01:36 -0800197 goto done;
Florin Coras134a9962018-08-28 11:32:04 -0700198 }
199 }
200
Florin Corasfa3884f2021-06-22 20:04:46 -0700201 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
Florin Coras134a9962018-08-28 11:32:04 -0700202 wrk->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
Florin Coras134a9962018-08-28 11:32:04 -0700203 clib_time_init (&wrk->clib_time);
204 vec_validate (wrk->mq_events, 64);
205 vec_validate (wrk->mq_msg_vector, 128);
206 vec_reset_length (wrk->mq_msg_vector);
Florin Coras86f04502018-09-12 16:08:01 -0700207 vec_validate (wrk->unhandled_evts_vector, 128);
208 vec_reset_length (wrk->unhandled_evts_vector);
Florin Coras134a9962018-08-28 11:32:04 -0700209
Florin Coras47c40e22018-11-26 17:01:36 -0800210done:
Florin Coras94fef3e2021-09-23 15:08:05 -0700211 clib_spinlock_unlock (&vcm->workers_lock);
Florin Coras47c40e22018-11-26 17:01:36 -0800212 return wrk;
213}
214
215int
216vcl_worker_register_with_vpp (void)
217{
218 vcl_worker_t *wrk = vcl_worker_get_current ();
219
220 clib_spinlock_lock (&vcm->workers_lock);
Florin Coras134a9962018-08-28 11:32:04 -0700221
Florin Coras935ce752020-09-08 22:43:47 -0700222 if (vcl_api_app_worker_add ())
Florin Coras134a9962018-08-28 11:32:04 -0700223 {
Florin Coras5e062572019-03-14 19:07:51 -0700224 VDBG (0, "failed to add worker to vpp");
Florin Corasb88de902020-09-08 16:47:57 -0700225 clib_spinlock_unlock (&vcm->workers_lock);
Florin Coras47c40e22018-11-26 17:01:36 -0800226 return -1;
Florin Coras134a9962018-08-28 11:32:04 -0700227 }
Florin Coras47c40e22018-11-26 17:01:36 -0800228 if (pthread_key_create (&vcl_worker_stop_key, vcl_worker_cleanup_cb))
Florin Coras5e062572019-03-14 19:07:51 -0700229 VDBG (0, "failed to add pthread cleanup function");
Florin Coras3348a4c2018-09-07 17:09:35 -0700230 if (pthread_setspecific (vcl_worker_stop_key, &wrk->thread_id))
Florin Coras5e062572019-03-14 19:07:51 -0700231 VDBG (0, "failed to setup key value");
Florin Coras134a9962018-08-28 11:32:04 -0700232
Florin Corasde9f08b2018-09-07 14:32:58 -0700233 clib_spinlock_unlock (&vcm->workers_lock);
234
Florin Coras134a9962018-08-28 11:32:04 -0700235 VDBG (0, "added worker %u", wrk->wrk_index);
Florin Coras47c40e22018-11-26 17:01:36 -0800236 return 0;
237}
Florin Coras134a9962018-08-28 11:32:04 -0700238
Florin Coras458089b2019-08-21 16:20:44 -0700239svm_msg_q_t *
240vcl_worker_ctrl_mq (vcl_worker_t * wrk)
241{
242 return wrk->ctrl_mq;
243}
244
Florin Coras0ef8ef22019-01-18 08:37:13 -0800245int
Florin Corasc127d5a2020-10-14 16:35:58 -0700246vcl_session_read_ready (vcl_session_t * s)
Florin Coras0ef8ef22019-01-18 08:37:13 -0800247{
Florin Coras6c3b2182020-10-19 18:36:48 -0700248 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
Florin Coras0ef8ef22019-01-18 08:37:13 -0800249 {
250 VDBG (0, "ERROR: session %u: cannot read from an epoll session!",
Florin Corasc127d5a2020-10-14 16:35:58 -0700251 s->session_index);
Florin Coras0ef8ef22019-01-18 08:37:13 -0800252 return VPPCOM_EBADFD;
253 }
254
Florin Coras1bc919e2020-10-18 20:17:49 -0700255 if (vcl_session_is_open (s))
Florin Coras0ef8ef22019-01-18 08:37:13 -0800256 {
Florin Coras1bc919e2020-10-18 20:17:49 -0700257 if (vcl_session_is_ct (s))
258 return svm_fifo_max_dequeue_cons (s->ct_rx_fifo);
Florin Coras0ef8ef22019-01-18 08:37:13 -0800259
Florin Coras1bc919e2020-10-18 20:17:49 -0700260 if (s->is_dgram)
261 {
262 session_dgram_pre_hdr_t ph;
263 u32 max_deq;
264
265 max_deq = svm_fifo_max_dequeue_cons (s->rx_fifo);
266 if (max_deq <= SESSION_CONN_HDR_LEN)
267 return 0;
268 if (svm_fifo_peek (s->rx_fifo, 0, sizeof (ph), (u8 *) & ph) < 0)
269 return 0;
270 if (ph.data_length + SESSION_CONN_HDR_LEN > max_deq)
271 return 0;
272
273 return ph.data_length;
274 }
275
276 return svm_fifo_max_dequeue_cons (s->rx_fifo);
277 }
278 else if (s->session_state == VCL_STATE_LISTEN)
279 {
280 return clib_fifo_elts (s->accept_evts_fifo);
281 }
282 else
283 {
284 return (s->session_state == VCL_STATE_DISCONNECT) ?
Florin Corasc127d5a2020-10-14 16:35:58 -0700285 VPPCOM_ECONNRESET : VPPCOM_ENOTCONN;
Florin Coras0ef8ef22019-01-18 08:37:13 -0800286 }
Florin Coras0ef8ef22019-01-18 08:37:13 -0800287}
288
289int
Florin Corasc127d5a2020-10-14 16:35:58 -0700290vcl_session_write_ready (vcl_session_t * s)
Florin Coras0ef8ef22019-01-18 08:37:13 -0800291{
Florin Coras6c3b2182020-10-19 18:36:48 -0700292 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
Florin Coras0ef8ef22019-01-18 08:37:13 -0800293 {
294 VDBG (0, "session %u [0x%llx]: cannot write to an epoll session!",
Florin Corasc127d5a2020-10-14 16:35:58 -0700295 s->session_index, s->vpp_handle);
Florin Coras0ef8ef22019-01-18 08:37:13 -0800296 return VPPCOM_EBADFD;
297 }
298
Florin Coras1bc919e2020-10-18 20:17:49 -0700299 if (vcl_session_is_open (s))
300 {
301 if (vcl_session_is_ct (s))
302 return svm_fifo_max_enqueue_prod (s->ct_tx_fifo);
303
304 if (s->is_dgram)
305 {
306 u32 max_enq = svm_fifo_max_enqueue_prod (s->tx_fifo);
307
308 if (max_enq <= sizeof (session_dgram_hdr_t))
309 return 0;
310 return max_enq - sizeof (session_dgram_hdr_t);
311 }
312
313 return svm_fifo_max_enqueue_prod (s->tx_fifo);
314 }
315 else if (s->session_state == VCL_STATE_LISTEN)
Florin Coras0ef8ef22019-01-18 08:37:13 -0800316 {
Florin Corasc127d5a2020-10-14 16:35:58 -0700317 if (s->tx_fifo)
318 return svm_fifo_max_enqueue_prod (s->tx_fifo);
Florin Coras0ef8ef22019-01-18 08:37:13 -0800319 else
320 return VPPCOM_EBADFD;
321 }
liuyacancde17692021-06-24 20:39:02 +0800322 else if (s->session_state == VCL_STATE_UPDATED)
323 {
324 return 0;
325 }
Florin Coras1bc919e2020-10-18 20:17:49 -0700326 else
Florin Coras0ef8ef22019-01-18 08:37:13 -0800327 {
Florin Coras1bc919e2020-10-18 20:17:49 -0700328 return (s->session_state == VCL_STATE_DISCONNECT) ?
Florin Corasc127d5a2020-10-14 16:35:58 -0700329 VPPCOM_ECONNRESET : VPPCOM_ENOTCONN;
Florin Coras0ef8ef22019-01-18 08:37:13 -0800330 }
Florin Coras0ef8ef22019-01-18 08:37:13 -0800331}
332
Florin Corasc4c4cf52019-08-24 18:17:34 -0700333int
Florin Corasa54b62d2021-04-21 09:05:56 -0700334vcl_session_alloc_ext_cfg (vcl_session_t *s,
Florin Coras87f63892021-05-01 16:01:40 -0700335 transport_endpt_ext_cfg_type_t type, u32 len)
Florin Corasa54b62d2021-04-21 09:05:56 -0700336{
337 if (s->ext_config)
338 return -1;
339
Florin Coras87f63892021-05-01 16:01:40 -0700340 s->ext_config = clib_mem_alloc (len);
341 clib_memset (s->ext_config, 0, len);
342 s->ext_config->len = len;
Florin Corasa54b62d2021-04-21 09:05:56 -0700343 s->ext_config->type = type;
344
345 return 0;
346}
347
348int
Florin Corasc4c4cf52019-08-24 18:17:34 -0700349vcl_segment_attach (u64 segment_handle, char *name, ssvm_segment_type_t type,
350 int fd)
351{
352 fifo_segment_create_args_t _a, *a = &_a;
353 int rv;
354
355 memset (a, 0, sizeof (*a));
Jakub Grajciarb4e5e502020-01-31 09:35:29 +0100356 a->segment_name = name;
Florin Corasc4c4cf52019-08-24 18:17:34 -0700357 a->segment_type = type;
358
359 if (type == SSVM_SEGMENT_MEMFD)
360 a->memfd_fd = fd;
361
Florin Corasda8f2182019-12-22 12:48:05 -0800362 clib_rwlock_writer_lock (&vcm->segment_table_lock);
363
Florin Corasc4c4cf52019-08-24 18:17:34 -0700364 if ((rv = fifo_segment_attach (&vcm->segment_main, a)))
365 {
366 clib_warning ("svm_fifo_segment_attach ('%s') failed", name);
367 return rv;
368 }
Florin Corasda8f2182019-12-22 12:48:05 -0800369 hash_set (vcm->segment_table, segment_handle, a->new_segment_indices[0]);
370
371 clib_rwlock_writer_unlock (&vcm->segment_table_lock);
372
Florin Coras4c6bbd72021-02-23 08:07:57 -0800373 vec_free (a->new_segment_indices);
Florin Corasc4c4cf52019-08-24 18:17:34 -0700374 return 0;
375}
376
Florin Corasda8f2182019-12-22 12:48:05 -0800377u32
378vcl_segment_table_lookup (u64 segment_handle)
379{
380 uword *seg_indexp;
381
382 clib_rwlock_reader_lock (&vcm->segment_table_lock);
383 seg_indexp = hash_get (vcm->segment_table, segment_handle);
384 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
385
386 if (!seg_indexp)
387 return VCL_INVALID_SEGMENT_INDEX;
388 return ((u32) * seg_indexp);
389}
390
Florin Corasc4c4cf52019-08-24 18:17:34 -0700391void
392vcl_segment_detach (u64 segment_handle)
393{
394 fifo_segment_main_t *sm = &vcm->segment_main;
395 fifo_segment_t *segment;
396 u32 segment_index;
397
398 segment_index = vcl_segment_table_lookup (segment_handle);
399 if (segment_index == (u32) ~ 0)
400 return;
Florin Corasda8f2182019-12-22 12:48:05 -0800401
402 clib_rwlock_writer_lock (&vcm->segment_table_lock);
403
Florin Corasc4c4cf52019-08-24 18:17:34 -0700404 segment = fifo_segment_get_segment (sm, segment_index);
405 fifo_segment_delete (sm, segment);
Florin Corasda8f2182019-12-22 12:48:05 -0800406 hash_unset (vcm->segment_table, segment_handle);
407
408 clib_rwlock_writer_unlock (&vcm->segment_table_lock);
409
Florin Corasc4c4cf52019-08-24 18:17:34 -0700410 VDBG (0, "detached segment %u handle %u", segment_index, segment_handle);
411}
412
Florin Corasc547e912020-12-08 17:50:45 -0800413int
414vcl_segment_attach_session (uword segment_handle, uword rxf_offset,
Florin Corasf6e284b2021-07-21 18:17:20 -0700415 uword txf_offset, uword mq_offset, u32 mq_index,
416 u8 is_ct, vcl_session_t *s)
Florin Corasc547e912020-12-08 17:50:45 -0800417{
Florin Corasb4624182020-12-11 13:58:12 -0800418 u32 fs_index, eqs_index;
Florin Corasc547e912020-12-08 17:50:45 -0800419 svm_fifo_t *rxf, *txf;
420 fifo_segment_t *fs;
Florin Corasb4624182020-12-11 13:58:12 -0800421 u64 eqs_handle;
Florin Corasc547e912020-12-08 17:50:45 -0800422
423 fs_index = vcl_segment_table_lookup (segment_handle);
424 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
425 {
426 VDBG (0, "ERROR: segment for session %u is not mounted!",
427 s->session_index);
428 return -1;
429 }
430
Florin Coras14f066e2020-12-10 18:52:40 -0800431 if (!is_ct && mq_offset != (uword) ~0)
Florin Corasb4624182020-12-11 13:58:12 -0800432 {
433 eqs_handle = vcl_vpp_worker_segment_handle (0);
434 eqs_index = vcl_segment_table_lookup (eqs_handle);
435 ASSERT (eqs_index != VCL_INVALID_SEGMENT_INDEX);
436 }
437
Florin Corasc547e912020-12-08 17:50:45 -0800438 clib_rwlock_reader_lock (&vcm->segment_table_lock);
439
440 fs = fifo_segment_get_segment (&vcm->segment_main, fs_index);
Florin Coras14f066e2020-12-10 18:52:40 -0800441 rxf = fifo_segment_alloc_fifo_w_offset (fs, rxf_offset);
442 txf = fifo_segment_alloc_fifo_w_offset (fs, txf_offset);
Florin Corascbb5e822021-02-20 10:42:22 -0800443 rxf->segment_index = fs_index;
444 txf->segment_index = fs_index;
Florin Corasc547e912020-12-08 17:50:45 -0800445
Florin Corasb4624182020-12-11 13:58:12 -0800446 if (!is_ct && mq_offset != (uword) ~0)
447 {
448 fs = fifo_segment_get_segment (&vcm->segment_main, eqs_index);
Florin Corasf6e284b2021-07-21 18:17:20 -0700449 s->vpp_evt_q = fifo_segment_msg_q_attach (fs, mq_offset, mq_index);
Florin Corasb4624182020-12-11 13:58:12 -0800450 }
451
Florin Corasc547e912020-12-08 17:50:45 -0800452 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
453
454 if (!is_ct)
455 {
Florin Coras14f066e2020-12-10 18:52:40 -0800456 rxf->shr->client_session_index = s->session_index;
457 txf->shr->client_session_index = s->session_index;
Florin Corasc547e912020-12-08 17:50:45 -0800458 rxf->client_thread_index = vcl_get_worker_index ();
459 txf->client_thread_index = vcl_get_worker_index ();
460 s->rx_fifo = rxf;
461 s->tx_fifo = txf;
462 }
463 else
464 {
465 s->ct_rx_fifo = rxf;
466 s->ct_tx_fifo = txf;
467 }
468
469 return 0;
470}
Florin Corasc4c4cf52019-08-24 18:17:34 -0700471
Florin Corascbb5e822021-02-20 10:42:22 -0800472void
473vcl_session_detach_fifos (vcl_session_t *s)
474{
475 fifo_segment_t *fs;
476
477 if (!s->rx_fifo)
478 return;
479
480 clib_rwlock_reader_lock (&vcm->segment_table_lock);
481
482 fs = fifo_segment_get_segment_if_valid (&vcm->segment_main,
483 s->rx_fifo->segment_index);
484 if (!fs)
485 goto done;
486
487 fifo_segment_free_client_fifo (fs, s->rx_fifo);
488 fifo_segment_free_client_fifo (fs, s->tx_fifo);
489 if (s->ct_rx_fifo)
490 {
Florin Corascf0e2572021-04-14 17:55:02 -0700491 fs = fifo_segment_get_segment_if_valid (&vcm->segment_main,
492 s->ct_rx_fifo->segment_index);
493 if (!fs)
494 goto done;
495
Florin Corascbb5e822021-02-20 10:42:22 -0800496 fifo_segment_free_client_fifo (fs, s->ct_rx_fifo);
497 fifo_segment_free_client_fifo (fs, s->ct_tx_fifo);
498 }
499
500done:
501 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
502}
503
Florin Corasb4624182020-12-11 13:58:12 -0800504int
505vcl_segment_attach_mq (uword segment_handle, uword mq_offset, u32 mq_index,
506 svm_msg_q_t **mq)
507{
508 fifo_segment_t *fs;
509 u32 fs_index;
510
511 fs_index = vcl_segment_table_lookup (segment_handle);
512 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
513 {
514 VDBG (0, "ERROR: mq segment %lx for is not attached!", segment_handle);
515 return -1;
516 }
517
518 clib_rwlock_reader_lock (&vcm->segment_table_lock);
519
520 fs = fifo_segment_get_segment (&vcm->segment_main, fs_index);
521 *mq = fifo_segment_msg_q_attach (fs, mq_offset, mq_index);
522
523 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
524
525 return 0;
526}
527
Florin Coras80b74252021-01-27 18:08:25 -0800528int
529vcl_segment_discover_mqs (uword segment_handle, int *fds, u32 n_fds)
530{
531 fifo_segment_t *fs;
532 u32 fs_index;
533
534 fs_index = vcl_segment_table_lookup (segment_handle);
535 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
536 {
537 VDBG (0, "ERROR: mq segment %lx for is not attached!", segment_handle);
538 return -1;
539 }
540
541 clib_rwlock_reader_lock (&vcm->segment_table_lock);
542
543 fs = fifo_segment_get_segment (&vcm->segment_main, fs_index);
544 fifo_segment_msg_qs_discover (fs, fds, n_fds);
545
546 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
547
548 return 0;
549}
550
Florin Coras4ac25842021-04-19 17:34:54 -0700551svm_fifo_chunk_t *
552vcl_segment_alloc_chunk (uword segment_handle, u32 slice_index, u32 size,
553 uword *offset)
554{
555 svm_fifo_chunk_t *c;
556 fifo_segment_t *fs;
557 u32 fs_index;
558
559 fs_index = vcl_segment_table_lookup (segment_handle);
560 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
561 {
562 VDBG (0, "ERROR: mq segment %lx for is not attached!", segment_handle);
563 return 0;
564 }
565
566 clib_rwlock_reader_lock (&vcm->segment_table_lock);
567
568 fs = fifo_segment_get_segment (&vcm->segment_main, fs_index);
569 c = fifo_segment_alloc_chunk_w_slice (fs, slice_index, size);
570 *offset = fifo_segment_chunk_offset (fs, c);
571
572 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
573
574 return c;
575}
576
Florin Coras8eb8d502021-06-16 14:46:57 -0700577int
578vcl_session_share_fifos (vcl_session_t *s, svm_fifo_t *rxf, svm_fifo_t *txf)
579{
580 vcl_worker_t *wrk = vcl_worker_get_current ();
581 fifo_segment_t *fs;
582
583 clib_rwlock_reader_lock (&vcm->segment_table_lock);
584
585 fs = fifo_segment_get_segment (&vcm->segment_main, rxf->segment_index);
586 s->rx_fifo = fifo_segment_duplicate_fifo (fs, rxf);
587 s->tx_fifo = fifo_segment_duplicate_fifo (fs, txf);
588
589 clib_rwlock_reader_unlock (&vcm->segment_table_lock);
590
591 svm_fifo_add_subscriber (s->rx_fifo, wrk->vpp_wrk_index);
592 svm_fifo_add_subscriber (s->tx_fifo, wrk->vpp_wrk_index);
593
594 return 0;
595}
596
Florin Coras60687192021-11-29 21:00:47 -0800597const char *
598vcl_session_state_str (vcl_session_state_t state)
599{
600 char *st;
601
602 switch (state)
603 {
604 case VCL_STATE_CLOSED:
605 st = "STATE_CLOSED";
606 break;
607 case VCL_STATE_LISTEN:
608 st = "STATE_LISTEN";
609 break;
610 case VCL_STATE_READY:
611 st = "STATE_READY";
612 break;
613 case VCL_STATE_VPP_CLOSING:
614 st = "STATE_VPP_CLOSING";
615 break;
616 case VCL_STATE_DISCONNECT:
617 st = "STATE_DISCONNECT";
618 break;
619 case VCL_STATE_DETACHED:
620 st = "STATE_DETACHED";
621 break;
622 case VCL_STATE_UPDATED:
623 st = "STATE_UPDATED";
624 break;
625 case VCL_STATE_LISTEN_NO_MQ:
626 st = "STATE_LISTEN_NO_MQ";
627 break;
628 default:
629 st = "UNKNOWN_STATE";
630 break;
631 }
632
633 return st;
634}
635
636u8 *
637vcl_format_ip4_address (u8 *s, va_list *args)
638{
639 u8 *a = va_arg (*args, u8 *);
640 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
641}
642
643u8 *
644vcl_format_ip6_address (u8 *s, va_list *args)
645{
646 ip6_address_t *a = va_arg (*args, ip6_address_t *);
647 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
648
649 i_max_n_zero = ARRAY_LEN (a->as_u16);
650 max_n_zeros = 0;
651 i_first_zero = i_max_n_zero;
652 n_zeros = 0;
653 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
654 {
655 u32 is_zero = a->as_u16[i] == 0;
656 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
657 {
658 i_first_zero = i;
659 n_zeros = 0;
660 }
661 n_zeros += is_zero;
662 if ((!is_zero && n_zeros > max_n_zeros) ||
663 (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
664 {
665 i_max_n_zero = i_first_zero;
666 max_n_zeros = n_zeros;
667 i_first_zero = ARRAY_LEN (a->as_u16);
668 n_zeros = 0;
669 }
670 }
671
672 last_double_colon = 0;
673 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
674 {
675 if (i == i_max_n_zero && max_n_zeros > 1)
676 {
677 s = format (s, "::");
678 i += max_n_zeros - 1;
679 last_double_colon = 1;
680 }
681 else
682 {
683 s = format (s, "%s%x", (last_double_colon || i == 0) ? "" : ":",
684 clib_net_to_host_u16 (a->as_u16[i]));
685 last_double_colon = 0;
686 }
687 }
688
689 return s;
690}
691
692/* Format an IP46 address. */
693u8 *
694vcl_format_ip46_address (u8 *s, va_list *args)
695{
696 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
697 ip46_type_t type = va_arg (*args, ip46_type_t);
698 int is_ip4 = 1;
699
700 switch (type)
701 {
702 case IP46_TYPE_ANY:
703 is_ip4 = ip46_address_is_ip4 (ip46);
704 break;
705 case IP46_TYPE_IP4:
706 is_ip4 = 1;
707 break;
708 case IP46_TYPE_IP6:
709 is_ip4 = 0;
710 break;
711 }
712
713 return is_ip4 ? format (s, "%U", vcl_format_ip4_address, &ip46->ip4) :
714 format (s, "%U", vcl_format_ip6_address, &ip46->ip6);
715}
716
Florin Coras99368312018-08-02 10:45:44 -0700717/*
718 * fd.io coding-style-patch-verification: ON
719 *
720 * Local Variables:
721 * eval: (c-set-style "gnu")
722 * End:
723 */