Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 1 | /* |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 2 | * Copyright (c) 2017-2019 Cisco and/or its affiliates. |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 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: |
| 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 | #ifndef __included_session_h__ |
| 16 | #define __included_session_h__ |
| 17 | |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 18 | #include <vppinfra/llist.h> |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 19 | #include <vnet/session/session_types.h> |
Florin Coras | 04e5344 | 2017-07-16 17:12:15 -0700 | [diff] [blame] | 20 | #include <vnet/session/session_lookup.h> |
Florin Coras | 3e350af | 2017-03-30 02:54:28 -0700 | [diff] [blame] | 21 | #include <vnet/session/session_debug.h> |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 22 | #include <svm/message_queue.h> |
Florin Coras | 04943b4 | 2020-12-25 11:45:40 -0800 | [diff] [blame] | 23 | #include <svm/fifo_segment.h> |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 24 | |
Florin Coras | 3e350af | 2017-03-30 02:54:28 -0700 | [diff] [blame] | 25 | #define foreach_session_input_error \ |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 26 | _(NO_SESSION, "No session drops") \ |
| 27 | _(NO_LISTENER, "No listener for dst port drops") \ |
| 28 | _(ENQUEUED, "Packets pushed into rx fifo") \ |
| 29 | _(NOT_READY, "Session not ready packets") \ |
| 30 | _(FIFO_FULL, "Packets dropped for lack of rx fifo space") \ |
| 31 | _(EVENT_FIFO_FULL, "Events not sent for lack of event fifo space") \ |
| 32 | _(API_QUEUE_FULL, "Sessions not created for lack of API queue space") \ |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 33 | |
| 34 | typedef enum |
| 35 | { |
| 36 | #define _(sym,str) SESSION_ERROR_##sym, |
| 37 | foreach_session_input_error |
| 38 | #undef _ |
| 39 | SESSION_N_ERROR, |
Florin Coras | 00e01d3 | 2019-10-21 16:07:46 -0700 | [diff] [blame] | 40 | } session_input_error_t; |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 41 | |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 42 | typedef struct session_tx_context_ |
| 43 | { |
| 44 | CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 45 | session_t *s; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 46 | transport_proto_vft_t *transport_vft; |
| 47 | transport_connection_t *tc; |
Florin Coras | 70f879d | 2020-03-13 17:54:42 +0000 | [diff] [blame] | 48 | transport_send_params_t sp; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 49 | u32 max_dequeue; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 50 | u32 left_to_snd; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 51 | u32 max_len_to_snd; |
| 52 | u16 deq_per_first_buf; |
| 53 | u16 deq_per_buf; |
Florin Coras | f08f26d | 2018-05-10 13:20:47 -0700 | [diff] [blame] | 54 | u16 n_segs_per_evt; |
Simon Zhang | ae16a98 | 2020-03-31 20:56:22 +0800 | [diff] [blame] | 55 | u16 n_bufs_needed; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 56 | u8 n_bufs_per_seg; |
| 57 | CLIB_CACHE_LINE_ALIGN_MARK (cacheline1); |
| 58 | session_dgram_hdr_t hdr; |
Florin Coras | 1d7a663 | 2021-05-17 23:44:53 -0700 | [diff] [blame] | 59 | |
| 60 | /** Vector of tx buffer free lists */ |
| 61 | u32 *tx_buffers; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 62 | } session_tx_context_t; |
| 63 | |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 64 | typedef struct session_evt_elt |
| 65 | { |
| 66 | clib_llist_anchor_t evt_list; |
| 67 | session_event_t evt; |
| 68 | } session_evt_elt_t; |
| 69 | |
Florin Coras | 458089b | 2019-08-21 16:20:44 -0700 | [diff] [blame] | 70 | typedef struct session_ctrl_evt_data_ |
| 71 | { |
| 72 | u8 data[SESSION_CTRL_MSG_MAX_SIZE]; |
| 73 | } session_evt_ctrl_data_t; |
| 74 | |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 75 | typedef enum session_wrk_state_ |
| 76 | { |
| 77 | SESSION_WRK_POLLING, |
| 78 | SESSION_WRK_INTERRUPT, |
| 79 | SESSION_WRK_IDLE, |
| 80 | } __clib_packed session_wrk_state_t; |
| 81 | |
| 82 | typedef enum session_wrk_flags_ |
| 83 | { |
| 84 | SESSION_WRK_F_ADAPTIVE = 1 << 0, |
| 85 | } __clib_packed session_wrk_flag_t; |
| 86 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 87 | typedef struct session_worker_ |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 88 | { |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 89 | CLIB_CACHE_LINE_ALIGN_MARK (cacheline0); |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 90 | |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 91 | /** Worker session pool */ |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 92 | session_t *sessions; |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 93 | |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 94 | /** vpp event message queue for worker */ |
| 95 | svm_msg_q_t *vpp_event_queue; |
Florin Coras | 8e43d04 | 2018-05-04 15:46:57 -0700 | [diff] [blame] | 96 | |
Florin Coras | d67f112 | 2018-05-21 17:47:40 -0700 | [diff] [blame] | 97 | /** vlib_time_now last time around the track */ |
Florin Coras | a8e71c8 | 2019-10-22 19:01:39 -0700 | [diff] [blame] | 98 | clib_time_type_t last_vlib_time; |
| 99 | |
| 100 | /** vlib_time_now rounded to us precision and as u64 */ |
| 101 | clib_us_time_t last_vlib_us_time; |
Florin Coras | d67f112 | 2018-05-21 17:47:40 -0700 | [diff] [blame] | 102 | |
Florin Coras | 60183db | 2019-07-20 15:53:16 -0700 | [diff] [blame] | 103 | /** Convenience pointer to this worker's vlib_main */ |
| 104 | vlib_main_t *vm; |
| 105 | |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 106 | /** Per-proto vector of sessions to enqueue */ |
Florin Coras | 07063b8 | 2020-03-13 04:44:51 +0000 | [diff] [blame] | 107 | u32 **session_to_enqueue; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 108 | |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 109 | /** Timerfd used to periodically signal wrk session queue node */ |
Florin Coras | 1c19aef | 2021-04-06 15:54:14 -0700 | [diff] [blame] | 110 | int timerfd; |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 111 | |
| 112 | /** Worker flags */ |
| 113 | session_wrk_flag_t flags; |
| 114 | |
| 115 | /** Worker state */ |
| 116 | session_wrk_state_t state; |
| 117 | |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 118 | /** Context for session tx */ |
| 119 | session_tx_context_t ctx; |
| 120 | |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 121 | /** Pool of session event list elements */ |
| 122 | session_evt_elt_t *event_elts; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 123 | |
Florin Coras | 458089b | 2019-08-21 16:20:44 -0700 | [diff] [blame] | 124 | /** Pool of ctrl events data buffers */ |
| 125 | session_evt_ctrl_data_t *ctrl_evts_data; |
| 126 | |
Florin Coras | b0ffbee | 2019-07-21 19:23:46 -0700 | [diff] [blame] | 127 | /** Head of control events list */ |
| 128 | clib_llist_index_t ctrl_head; |
| 129 | |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 130 | /** Head of list of elements */ |
| 131 | clib_llist_index_t new_head; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 132 | |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 133 | /** Head of list of pending events */ |
Florin Coras | 60183db | 2019-07-20 15:53:16 -0700 | [diff] [blame] | 134 | clib_llist_index_t old_head; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 135 | |
| 136 | /** Peekers rw lock */ |
| 137 | clib_rwlock_t peekers_rw_locks; |
| 138 | |
Florin Coras | 2a7ea2e | 2019-10-16 22:06:08 -0700 | [diff] [blame] | 139 | /** Vector of buffers to be sent */ |
| 140 | u32 *pending_tx_buffers; |
| 141 | |
| 142 | /** Vector of nexts for the pending tx buffers */ |
| 143 | u16 *pending_tx_nexts; |
| 144 | |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 145 | /** Clib file for timerfd. Used only if adaptive mode is on */ |
| 146 | uword timerfd_file; |
| 147 | |
Florin Coras | af97221 | 2021-05-05 09:54:00 -0700 | [diff] [blame] | 148 | /** List of pending connects for first worker */ |
| 149 | clib_llist_index_t pending_connects; |
| 150 | |
| 151 | /** Flag that is set if main thread signaled to handle connects */ |
Florin Coras | 0f27339 | 2021-05-21 15:48:18 -0700 | [diff] [blame^] | 152 | u32 n_pending_connects; |
Florin Coras | af97221 | 2021-05-05 09:54:00 -0700 | [diff] [blame] | 153 | |
Florin Coras | a48dffe | 2021-05-16 10:58:53 -0700 | [diff] [blame] | 154 | /** Main thread loops in poll mode without a connect */ |
| 155 | u32 no_connect_loops; |
| 156 | |
Florin Coras | cca9618 | 2019-07-19 07:34:13 -0700 | [diff] [blame] | 157 | #if SESSION_DEBUG |
| 158 | /** last event poll time by thread */ |
Florin Coras | a8e71c8 | 2019-10-22 19:01:39 -0700 | [diff] [blame] | 159 | clib_time_type_t last_event_poll; |
Florin Coras | cca9618 | 2019-07-19 07:34:13 -0700 | [diff] [blame] | 160 | #endif |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 161 | } session_worker_t; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 162 | |
Florin Coras | 60183db | 2019-07-20 15:53:16 -0700 | [diff] [blame] | 163 | typedef int (session_fifo_rx_fn) (session_worker_t * wrk, |
Florin Coras | 1bcad5c | 2019-01-09 20:04:38 -0800 | [diff] [blame] | 164 | vlib_node_runtime_t * node, |
Florin Coras | 60183db | 2019-07-20 15:53:16 -0700 | [diff] [blame] | 165 | session_evt_elt_t * e, int *n_tx_packets); |
Florin Coras | 1bcad5c | 2019-01-09 20:04:38 -0800 | [diff] [blame] | 166 | |
| 167 | extern session_fifo_rx_fn session_tx_fifo_peek_and_snd; |
| 168 | extern session_fifo_rx_fn session_tx_fifo_dequeue_and_snd; |
| 169 | extern session_fifo_rx_fn session_tx_fifo_dequeue_internal; |
| 170 | |
| 171 | u8 session_node_lookup_fifo_event (svm_fifo_t * f, session_event_t * e); |
| 172 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 173 | typedef struct session_main_ |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 174 | { |
| 175 | /** Worker contexts */ |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 176 | session_worker_t *wrk; |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 177 | |
Florin Coras | 6c10ab2 | 2020-11-08 16:50:39 -0800 | [diff] [blame] | 178 | /** Event queues memfd segment */ |
Florin Coras | 04943b4 | 2020-12-25 11:45:40 -0800 | [diff] [blame] | 179 | fifo_segment_t evt_qs_segment; |
Florin Coras | b384b54 | 2018-01-15 01:08:33 -0800 | [diff] [blame] | 180 | |
Florin Coras | 93e6580 | 2017-11-29 00:07:11 -0500 | [diff] [blame] | 181 | /** Unique segment name counter */ |
| 182 | u32 unique_segment_name_counter; |
| 183 | |
| 184 | /** Per transport rx function that can either dequeue or peek */ |
Florin Coras | 561af9b | 2017-12-09 10:19:43 -0800 | [diff] [blame] | 185 | session_fifo_rx_fn **session_tx_fns; |
| 186 | |
| 187 | /** Per session type output nodes. Could optimize to group nodes by |
| 188 | * fib but lookup would then require session type parsing in session node. |
| 189 | * Trade memory for speed, for now */ |
| 190 | u32 *session_type_to_next; |
Florin Coras | 93e6580 | 2017-11-29 00:07:11 -0500 | [diff] [blame] | 191 | |
Florin Coras | fb50bc3 | 2021-05-18 00:28:59 -0700 | [diff] [blame] | 192 | /** Thread for cl and ho that rely on cl allocs */ |
| 193 | u32 transport_cl_thread; |
| 194 | |
Florin Coras | 07063b8 | 2020-03-13 04:44:51 +0000 | [diff] [blame] | 195 | transport_proto_t last_transport_proto_type; |
| 196 | |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 197 | /* |
| 198 | * Config parameters |
| 199 | */ |
| 200 | |
Florin Coras | 93e6580 | 2017-11-29 00:07:11 -0500 | [diff] [blame] | 201 | /** Session manager is enabled */ |
| 202 | u8 is_enabled; |
Florin Coras | e10da62 | 2020-10-25 14:00:29 -0700 | [diff] [blame] | 203 | |
| 204 | /** Session manager initialized (not necessarily enabled) */ |
| 205 | u8 is_initialized; |
| 206 | |
Nathan Skrzypczak | 31bd035 | 2019-11-07 17:55:01 +0100 | [diff] [blame] | 207 | /** Enable session manager at startup */ |
| 208 | u8 session_enable_asap; |
Florin Coras | 93e6580 | 2017-11-29 00:07:11 -0500 | [diff] [blame] | 209 | |
Florin Coras | e92c946 | 2020-11-25 08:44:16 -0800 | [diff] [blame] | 210 | /** Poll session node in main thread */ |
| 211 | u8 poll_main; |
| 212 | |
Florin Coras | 41d5f54 | 2021-01-15 13:49:33 -0800 | [diff] [blame] | 213 | /** Allocate private rx mqs for external apps */ |
| 214 | u8 use_private_rx_mqs; |
| 215 | |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 216 | /** Do not enable session queue node adaptive mode */ |
| 217 | u8 no_adaptive; |
| 218 | |
Dave Barach | 10d8cc6 | 2017-05-30 09:30:07 -0400 | [diff] [blame] | 219 | /** vpp fifo event queue configured length */ |
| 220 | u32 configured_event_queue_length; |
| 221 | |
Florin Coras | b384b54 | 2018-01-15 01:08:33 -0800 | [diff] [blame] | 222 | /** Session ssvm segment configs*/ |
| 223 | uword session_baseva; |
Florin Coras | a332c46 | 2018-01-31 06:52:17 -0800 | [diff] [blame] | 224 | uword session_va_space_size; |
Florin Coras | b4c1491 | 2019-02-09 13:51:25 -0800 | [diff] [blame] | 225 | uword evt_qs_segment_size; |
Florin Coras | b384b54 | 2018-01-15 01:08:33 -0800 | [diff] [blame] | 226 | |
| 227 | /** Session table size parameters */ |
Florin Coras | 66b1131 | 2017-07-31 17:18:03 -0700 | [diff] [blame] | 228 | u32 configured_v4_session_table_buckets; |
| 229 | u32 configured_v4_session_table_memory; |
| 230 | u32 configured_v4_halfopen_table_buckets; |
| 231 | u32 configured_v4_halfopen_table_memory; |
| 232 | u32 configured_v6_session_table_buckets; |
| 233 | u32 configured_v6_session_table_memory; |
| 234 | u32 configured_v6_halfopen_table_buckets; |
| 235 | u32 configured_v6_halfopen_table_memory; |
| 236 | |
Florin Coras | 93e6580 | 2017-11-29 00:07:11 -0500 | [diff] [blame] | 237 | /** Transport table (preallocation) size parameters */ |
| 238 | u32 local_endpoints_table_memory; |
| 239 | u32 local_endpoints_table_buckets; |
Florin Coras | e04c299 | 2017-03-01 08:17:34 -0800 | [diff] [blame] | 240 | |
Dave Barach | 2c25a62 | 2017-06-26 11:35:07 -0400 | [diff] [blame] | 241 | /** Preallocate session config parameter */ |
| 242 | u32 preallocated_sessions; |
| 243 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 244 | } session_main_t; |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 245 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 246 | extern session_main_t session_main; |
Florin Coras | e04c299 | 2017-03-01 08:17:34 -0800 | [diff] [blame] | 247 | extern vlib_node_registration_t session_queue_node; |
Florin Coras | fd542f1 | 2018-05-16 19:28:24 -0700 | [diff] [blame] | 248 | extern vlib_node_registration_t session_queue_process_node; |
Florin Coras | 653e43f | 2019-03-04 10:56:23 -0800 | [diff] [blame] | 249 | extern vlib_node_registration_t session_queue_pre_input_node; |
Florin Coras | fd542f1 | 2018-05-16 19:28:24 -0700 | [diff] [blame] | 250 | |
Florin Coras | 5484daa | 2020-03-27 23:55:06 +0000 | [diff] [blame] | 251 | typedef enum session_q_process_evt_ |
| 252 | { |
| 253 | SESSION_Q_PROCESS_RUN_ON_MAIN = 1, |
| 254 | SESSION_Q_PROCESS_STOP |
| 255 | } session_q_process_evt_t; |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 256 | |
Florin Coras | 07063b8 | 2020-03-13 04:44:51 +0000 | [diff] [blame] | 257 | #define TRANSPORT_PROTO_INVALID (session_main.last_transport_proto_type + 1) |
| 258 | #define TRANSPORT_N_PROTOS (session_main.last_transport_proto_type + 1) |
| 259 | |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 260 | static inline void |
Florin Coras | 60183db | 2019-07-20 15:53:16 -0700 | [diff] [blame] | 261 | session_evt_add_old (session_worker_t * wrk, session_evt_elt_t * elt) |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 262 | { |
| 263 | clib_llist_add_tail (wrk->event_elts, evt_list, elt, |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 264 | clib_llist_elt (wrk->event_elts, wrk->old_head)); |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 265 | } |
| 266 | |
Florin Coras | dd97a48 | 2019-11-02 14:32:52 -0700 | [diff] [blame] | 267 | static inline void |
| 268 | session_evt_add_head_old (session_worker_t * wrk, session_evt_elt_t * elt) |
| 269 | { |
| 270 | clib_llist_add (wrk->event_elts, evt_list, elt, |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 271 | clib_llist_elt (wrk->event_elts, wrk->old_head)); |
Florin Coras | dd97a48 | 2019-11-02 14:32:52 -0700 | [diff] [blame] | 272 | } |
| 273 | |
| 274 | |
Florin Coras | 458089b | 2019-08-21 16:20:44 -0700 | [diff] [blame] | 275 | static inline u32 |
| 276 | session_evt_ctrl_data_alloc (session_worker_t * wrk) |
| 277 | { |
| 278 | session_evt_ctrl_data_t *data; |
| 279 | pool_get (wrk->ctrl_evts_data, data); |
| 280 | return (data - wrk->ctrl_evts_data); |
| 281 | } |
| 282 | |
Florin Coras | b0ffbee | 2019-07-21 19:23:46 -0700 | [diff] [blame] | 283 | static inline session_evt_elt_t * |
| 284 | session_evt_alloc_ctrl (session_worker_t * wrk) |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 285 | { |
Florin Coras | b0ffbee | 2019-07-21 19:23:46 -0700 | [diff] [blame] | 286 | session_evt_elt_t *elt; |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 287 | clib_llist_get (wrk->event_elts, elt); |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 288 | clib_llist_add_tail (wrk->event_elts, evt_list, elt, |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 289 | clib_llist_elt (wrk->event_elts, wrk->ctrl_head)); |
Florin Coras | b0ffbee | 2019-07-21 19:23:46 -0700 | [diff] [blame] | 290 | return elt; |
Florin Coras | 2062ec0 | 2019-07-15 13:15:18 -0700 | [diff] [blame] | 291 | } |
| 292 | |
Florin Coras | 458089b | 2019-08-21 16:20:44 -0700 | [diff] [blame] | 293 | static inline void * |
| 294 | session_evt_ctrl_data (session_worker_t * wrk, session_evt_elt_t * elt) |
| 295 | { |
| 296 | return (void *) (pool_elt_at_index (wrk->ctrl_evts_data, |
| 297 | elt->evt.ctrl_data_index)); |
| 298 | } |
| 299 | |
| 300 | static inline void |
| 301 | session_evt_ctrl_data_free (session_worker_t * wrk, session_evt_elt_t * elt) |
| 302 | { |
| 303 | ASSERT (elt->evt.event_type > SESSION_IO_EVT_BUILTIN_TX); |
| 304 | pool_put_index (wrk->ctrl_evts_data, elt->evt.ctrl_data_index); |
| 305 | } |
| 306 | |
Florin Coras | 26dd6de | 2019-07-23 23:54:47 -0700 | [diff] [blame] | 307 | static inline session_evt_elt_t * |
| 308 | session_evt_alloc_new (session_worker_t * wrk) |
| 309 | { |
| 310 | session_evt_elt_t *elt; |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 311 | clib_llist_get (wrk->event_elts, elt); |
Florin Coras | 26dd6de | 2019-07-23 23:54:47 -0700 | [diff] [blame] | 312 | clib_llist_add_tail (wrk->event_elts, evt_list, elt, |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 313 | clib_llist_elt (wrk->event_elts, wrk->new_head)); |
Florin Coras | 26dd6de | 2019-07-23 23:54:47 -0700 | [diff] [blame] | 314 | return elt; |
| 315 | } |
| 316 | |
| 317 | static inline session_evt_elt_t * |
| 318 | session_evt_alloc_old (session_worker_t * wrk) |
| 319 | { |
| 320 | session_evt_elt_t *elt; |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 321 | clib_llist_get (wrk->event_elts, elt); |
Florin Coras | 26dd6de | 2019-07-23 23:54:47 -0700 | [diff] [blame] | 322 | clib_llist_add_tail (wrk->event_elts, evt_list, elt, |
Florin Coras | 46b8b1a | 2021-05-17 19:09:33 -0700 | [diff] [blame] | 323 | clib_llist_elt (wrk->event_elts, wrk->old_head)); |
Florin Coras | 26dd6de | 2019-07-23 23:54:47 -0700 | [diff] [blame] | 324 | return elt; |
| 325 | } |
| 326 | |
Florin Coras | 41d5f54 | 2021-01-15 13:49:33 -0800 | [diff] [blame] | 327 | int session_wrk_handle_mq (session_worker_t *wrk, svm_msg_q_t *mq); |
| 328 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 329 | session_t *session_alloc (u32 thread_index); |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 330 | void session_free (session_t * s); |
| 331 | void session_free_w_fifos (session_t * s); |
Florin Coras | ea72764 | 2021-05-07 19:39:43 -0700 | [diff] [blame] | 332 | void session_cleanup_half_open (session_handle_t ho_handle); |
Srikanth Akula | e140d5d | 2019-11-18 11:49:58 -0800 | [diff] [blame] | 333 | u8 session_is_valid (u32 si, u8 thread_index); |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 334 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 335 | always_inline session_t * |
Florin Coras | cea194d | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 336 | session_get (u32 si, u32 thread_index) |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 337 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 338 | ASSERT (session_is_valid (si, thread_index)); |
| 339 | return pool_elt_at_index (session_main.wrk[thread_index].sessions, si); |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 340 | } |
| 341 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 342 | always_inline session_t * |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 343 | session_get_if_valid (u64 si, u32 thread_index) |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 344 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 345 | if (thread_index >= vec_len (session_main.wrk)) |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 346 | return 0; |
| 347 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 348 | if (pool_is_free_index (session_main.wrk[thread_index].sessions, si)) |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 349 | return 0; |
| 350 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 351 | ASSERT (session_is_valid (si, thread_index)); |
| 352 | return pool_elt_at_index (session_main.wrk[thread_index].sessions, si); |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 353 | } |
| 354 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 355 | always_inline session_t * |
Florin Coras | f8f516a | 2018-02-08 15:10:09 -0800 | [diff] [blame] | 356 | session_get_from_handle (session_handle_t handle) |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 357 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 358 | session_main_t *smm = &session_main; |
Florin Coras | f8f516a | 2018-02-08 15:10:09 -0800 | [diff] [blame] | 359 | u32 session_index, thread_index; |
| 360 | session_parse_handle (handle, &session_index, &thread_index); |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 361 | return pool_elt_at_index (smm->wrk[thread_index].sessions, session_index); |
Florin Coras | f8f516a | 2018-02-08 15:10:09 -0800 | [diff] [blame] | 362 | } |
| 363 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 364 | always_inline session_t * |
Florin Coras | f8f516a | 2018-02-08 15:10:09 -0800 | [diff] [blame] | 365 | session_get_from_handle_if_valid (session_handle_t handle) |
| 366 | { |
| 367 | u32 session_index, thread_index; |
| 368 | session_parse_handle (handle, &session_index, &thread_index); |
| 369 | return session_get_if_valid (session_index, thread_index); |
| 370 | } |
| 371 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 372 | u64 session_segment_handle (session_t * s); |
Florin Coras | fa76a76 | 2018-11-29 12:40:10 -0800 | [diff] [blame] | 373 | |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 374 | /** |
| 375 | * Acquires a lock that blocks a session pool from expanding. |
| 376 | * |
| 377 | * This is typically used for safely peeking into other threads' |
| 378 | * pools in order to clone elements. Lock should be dropped as soon |
| 379 | * as possible by calling @ref session_pool_remove_peeker. |
| 380 | * |
| 381 | * NOTE: Avoid using pool_elt_at_index while the lock is held because |
| 382 | * it may lead to free elt bitmap expansion/contraction! |
| 383 | */ |
| 384 | always_inline void |
| 385 | session_pool_add_peeker (u32 thread_index) |
| 386 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 387 | session_worker_t *wrk = &session_main.wrk[thread_index]; |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 388 | if (thread_index == vlib_get_thread_index ()) |
| 389 | return; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 390 | clib_rwlock_reader_lock (&wrk->peekers_rw_locks); |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 391 | } |
| 392 | |
| 393 | always_inline void |
| 394 | session_pool_remove_peeker (u32 thread_index) |
| 395 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 396 | session_worker_t *wrk = &session_main.wrk[thread_index]; |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 397 | if (thread_index == vlib_get_thread_index ()) |
| 398 | return; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 399 | clib_rwlock_reader_unlock (&wrk->peekers_rw_locks); |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 400 | } |
| 401 | |
| 402 | /** |
| 403 | * Get session from handle and 'lock' pool resize if not in same thread |
| 404 | * |
| 405 | * Caller should drop the peek 'lock' as soon as possible. |
| 406 | */ |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 407 | always_inline session_t * |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 408 | session_get_from_handle_safe (u64 handle) |
| 409 | { |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 410 | u32 thread_index = session_thread_from_handle (handle); |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 411 | session_worker_t *wrk = &session_main.wrk[thread_index]; |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 412 | |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 413 | if (thread_index == vlib_get_thread_index ()) |
| 414 | { |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 415 | return pool_elt_at_index (wrk->sessions, |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 416 | session_index_from_handle (handle)); |
| 417 | } |
| 418 | else |
| 419 | { |
| 420 | session_pool_add_peeker (thread_index); |
| 421 | /* Don't use pool_elt_at index. See @ref session_pool_add_peeker */ |
Florin Coras | 5a7ca7b | 2018-10-30 12:01:48 -0700 | [diff] [blame] | 422 | return wrk->sessions + session_index_from_handle (handle); |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 423 | } |
| 424 | } |
| 425 | |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 426 | always_inline u32 |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 427 | session_get_index (session_t * s) |
| 428 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 429 | return (s - session_main.wrk[s->thread_index].sessions); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 430 | } |
| 431 | |
| 432 | always_inline session_t * |
| 433 | session_clone_safe (u32 session_index, u32 thread_index) |
| 434 | { |
| 435 | session_t *old_s, *new_s; |
| 436 | u32 current_thread_index = vlib_get_thread_index (); |
| 437 | |
| 438 | /* If during the memcpy pool is reallocated AND the memory allocator |
| 439 | * decides to give the old chunk of memory to somebody in a hurry to |
| 440 | * scribble something on it, we have a problem. So add this thread as |
| 441 | * a session pool peeker. |
| 442 | */ |
| 443 | session_pool_add_peeker (thread_index); |
| 444 | new_s = session_alloc (current_thread_index); |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 445 | old_s = session_main.wrk[thread_index].sessions + session_index; |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 446 | clib_memcpy_fast (new_s, old_s, sizeof (*new_s)); |
| 447 | session_pool_remove_peeker (thread_index); |
| 448 | new_s->thread_index = current_thread_index; |
| 449 | new_s->session_index = session_get_index (new_s); |
| 450 | return new_s; |
| 451 | } |
| 452 | |
Florin Coras | 89a9f61 | 2021-05-11 11:55:07 -0700 | [diff] [blame] | 453 | int session_open (session_endpoint_cfg_t *sep, session_handle_t *rsh); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 454 | int session_listen (session_t * s, session_endpoint_cfg_t * sep); |
| 455 | int session_stop_listen (session_t * s); |
liuyacan | 534468e | 2021-05-09 03:50:40 +0000 | [diff] [blame] | 456 | void session_half_close (session_t *s); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 457 | void session_close (session_t * s); |
Florin Coras | dfb3b87 | 2019-08-16 17:48:44 -0700 | [diff] [blame] | 458 | void session_reset (session_t * s); |
liuyacan | 534468e | 2021-05-09 03:50:40 +0000 | [diff] [blame] | 459 | void session_transport_half_close (session_t *s); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 460 | void session_transport_close (session_t * s); |
Florin Coras | dfb3b87 | 2019-08-16 17:48:44 -0700 | [diff] [blame] | 461 | void session_transport_reset (session_t * s); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 462 | void session_transport_cleanup (session_t * s); |
| 463 | int session_send_io_evt_to_thread (svm_fifo_t * f, |
| 464 | session_evt_type_t evt_type); |
Florin Coras | 653e43f | 2019-03-04 10:56:23 -0800 | [diff] [blame] | 465 | int session_enqueue_notify (session_t * s); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 466 | int session_dequeue_notify (session_t * s); |
| 467 | int session_send_io_evt_to_thread_custom (void *data, u32 thread_index, |
| 468 | session_evt_type_t evt_type); |
| 469 | void session_send_rpc_evt_to_thread (u32 thread_index, void *fp, |
| 470 | void *rpc_args); |
Nathan Skrzypczak | 60f3e65 | 2019-03-19 13:57:31 +0100 | [diff] [blame] | 471 | void session_send_rpc_evt_to_thread_force (u32 thread_index, void *fp, |
| 472 | void *rpc_args); |
Florin Coras | 26dd6de | 2019-07-23 23:54:47 -0700 | [diff] [blame] | 473 | void session_add_self_custom_tx_evt (transport_connection_t * tc, |
| 474 | u8 has_prio); |
Florin Coras | 70f879d | 2020-03-13 17:54:42 +0000 | [diff] [blame] | 475 | void sesssion_reschedule_tx (transport_connection_t * tc); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 476 | transport_connection_t *session_get_transport (session_t * s); |
Florin Coras | 09d18c2 | 2019-04-24 11:10:02 -0700 | [diff] [blame] | 477 | void session_get_endpoint (session_t * s, transport_endpoint_t * tep, |
| 478 | u8 is_lcl); |
Florin Coras | 04ae827 | 2021-04-12 19:55:37 -0700 | [diff] [blame] | 479 | int session_transport_attribute (session_t *s, u8 is_get, |
| 480 | transport_endpt_attr_t *attr); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 481 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 482 | u8 *format_session (u8 * s, va_list * args); |
| 483 | uword unformat_session (unformat_input_t * input, va_list * args); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 484 | uword unformat_transport_connection (unformat_input_t * input, |
| 485 | va_list * args); |
| 486 | |
| 487 | /* |
| 488 | * Interface to transport protos |
| 489 | */ |
| 490 | |
| 491 | int session_enqueue_stream_connection (transport_connection_t * tc, |
| 492 | vlib_buffer_t * b, u32 offset, |
| 493 | u8 queue_event, u8 is_in_order); |
| 494 | int session_enqueue_dgram_connection (session_t * s, |
| 495 | session_dgram_hdr_t * hdr, |
| 496 | vlib_buffer_t * b, u8 proto, |
| 497 | u8 queue_event); |
Florin Coras | 00e01d3 | 2019-10-21 16:07:46 -0700 | [diff] [blame] | 498 | int session_stream_connect_notify (transport_connection_t * tc, |
| 499 | session_error_t err); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 500 | int session_dgram_connect_notify (transport_connection_t * tc, |
| 501 | u32 old_thread_index, |
| 502 | session_t ** new_session); |
Florin Coras | a27a46e | 2019-02-18 13:02:28 -0800 | [diff] [blame] | 503 | int session_stream_accept_notify (transport_connection_t * tc); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 504 | void session_transport_closing_notify (transport_connection_t * tc); |
| 505 | void session_transport_delete_notify (transport_connection_t * tc); |
Florin Coras | ea72764 | 2021-05-07 19:39:43 -0700 | [diff] [blame] | 506 | void session_half_open_delete_notify (transport_connection_t *tc); |
Florin Coras | bab6c52 | 2021-05-13 08:36:56 -0700 | [diff] [blame] | 507 | void session_half_open_migrate_notify (transport_connection_t *tc); |
| 508 | int session_half_open_migrated_notify (transport_connection_t *tc); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 509 | void session_transport_closed_notify (transport_connection_t * tc); |
| 510 | void session_transport_reset_notify (transport_connection_t * tc); |
Florin Coras | c9940fc | 2019-02-05 20:55:11 -0800 | [diff] [blame] | 511 | int session_stream_accept (transport_connection_t * tc, u32 listener_index, |
Nathan Skrzypczak | 2f0f96b | 2019-06-13 10:14:28 +0200 | [diff] [blame] | 512 | u32 thread_index, u8 notify); |
Florin Coras | e759bb5 | 2020-04-08 01:55:39 +0000 | [diff] [blame] | 513 | int session_dgram_accept (transport_connection_t * tc, u32 listener_index, |
| 514 | u32 thread_index); |
Florin Coras | 07063b8 | 2020-03-13 04:44:51 +0000 | [diff] [blame] | 515 | /** |
| 516 | * Initialize session layer for given transport proto and ip version |
| 517 | * |
| 518 | * Allocates per session type (transport proto + ip version) data structures |
| 519 | * and adds arc from session queue node to session type output node. |
| 520 | * |
| 521 | * @param transport_proto transport proto to be registered |
| 522 | * @param vft virtual function table for transport |
| 523 | * @param is_ip4 flag that indicates if transports uses ipv4 |
| 524 | * as underlying network layer |
| 525 | * @param output_node output node for transport |
| 526 | */ |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 527 | void session_register_transport (transport_proto_t transport_proto, |
| 528 | const transport_proto_vft_t * vft, u8 is_ip4, |
| 529 | u32 output_node); |
Florin Coras | 07063b8 | 2020-03-13 04:44:51 +0000 | [diff] [blame] | 530 | transport_proto_t session_add_transport_proto (void); |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 531 | int session_tx_fifo_peek_bytes (transport_connection_t * tc, u8 * buffer, |
| 532 | u32 offset, u32 max_bytes); |
| 533 | u32 session_tx_fifo_dequeue_drop (transport_connection_t * tc, u32 max_bytes); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 534 | |
| 535 | always_inline u32 |
Florin Coras | d2aab83 | 2018-05-22 11:39:59 -0700 | [diff] [blame] | 536 | transport_max_rx_enqueue (transport_connection_t * tc) |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 537 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 538 | session_t *s = session_get (tc->s_index, tc->thread_index); |
Sirshak Das | 28aa539 | 2019-02-05 01:33:33 -0600 | [diff] [blame] | 539 | return svm_fifo_max_enqueue_prod (s->rx_fifo); |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 540 | } |
| 541 | |
Florin Coras | e04c299 | 2017-03-01 08:17:34 -0800 | [diff] [blame] | 542 | always_inline u32 |
Florin Coras | 42ceddb | 2018-12-12 10:56:01 -0800 | [diff] [blame] | 543 | transport_max_tx_dequeue (transport_connection_t * tc) |
| 544 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 545 | session_t *s = session_get (tc->s_index, tc->thread_index); |
Sirshak Das | 28aa539 | 2019-02-05 01:33:33 -0600 | [diff] [blame] | 546 | return svm_fifo_max_dequeue_cons (s->tx_fifo); |
Florin Coras | 42ceddb | 2018-12-12 10:56:01 -0800 | [diff] [blame] | 547 | } |
| 548 | |
| 549 | always_inline u32 |
Florin Coras | f65074e | 2019-03-31 17:17:11 -0700 | [diff] [blame] | 550 | transport_max_rx_dequeue (transport_connection_t * tc) |
| 551 | { |
| 552 | session_t *s = session_get (tc->s_index, tc->thread_index); |
| 553 | return svm_fifo_max_dequeue (s->rx_fifo); |
| 554 | } |
| 555 | |
| 556 | always_inline u32 |
Florin Coras | d2aab83 | 2018-05-22 11:39:59 -0700 | [diff] [blame] | 557 | transport_rx_fifo_size (transport_connection_t * tc) |
Florin Coras | e04c299 | 2017-03-01 08:17:34 -0800 | [diff] [blame] | 558 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 559 | session_t *s = session_get (tc->s_index, tc->thread_index); |
Florin Coras | f22f4e5 | 2019-12-19 16:10:58 -0800 | [diff] [blame] | 560 | return svm_fifo_size (s->rx_fifo); |
Florin Coras | e04c299 | 2017-03-01 08:17:34 -0800 | [diff] [blame] | 561 | } |
| 562 | |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 563 | always_inline u32 |
Florin Coras | d2aab83 | 2018-05-22 11:39:59 -0700 | [diff] [blame] | 564 | transport_tx_fifo_size (transport_connection_t * tc) |
| 565 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 566 | session_t *s = session_get (tc->s_index, tc->thread_index); |
Florin Coras | f22f4e5 | 2019-12-19 16:10:58 -0800 | [diff] [blame] | 567 | return svm_fifo_size (s->tx_fifo); |
Florin Coras | d2aab83 | 2018-05-22 11:39:59 -0700 | [diff] [blame] | 568 | } |
| 569 | |
Florin Coras | 7ac053b | 2018-11-05 15:57:21 -0800 | [diff] [blame] | 570 | always_inline u8 |
| 571 | transport_rx_fifo_has_ooo_data (transport_connection_t * tc) |
| 572 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 573 | session_t *s = session_get (tc->c_index, tc->thread_index); |
| 574 | return svm_fifo_has_ooo_data (s->rx_fifo); |
Florin Coras | 7ac053b | 2018-11-05 15:57:21 -0800 | [diff] [blame] | 575 | } |
| 576 | |
Florin Coras | 5a41fd5 | 2021-04-19 10:17:26 -0700 | [diff] [blame] | 577 | always_inline void |
| 578 | transport_rx_fifo_req_deq_ntf (transport_connection_t *tc) |
| 579 | { |
| 580 | session_t *s = session_get (tc->s_index, tc->thread_index); |
| 581 | svm_fifo_add_want_deq_ntf (s->rx_fifo, SVM_FIFO_WANT_DEQ_NOTIF); |
| 582 | } |
| 583 | |
Florin Coras | a8e71c8 | 2019-10-22 19:01:39 -0700 | [diff] [blame] | 584 | always_inline clib_time_type_t |
Florin Coras | d67f112 | 2018-05-21 17:47:40 -0700 | [diff] [blame] | 585 | transport_time_now (u32 thread_index) |
| 586 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 587 | return session_main.wrk[thread_index].last_vlib_time; |
Florin Coras | d67f112 | 2018-05-21 17:47:40 -0700 | [diff] [blame] | 588 | } |
| 589 | |
Florin Coras | a8e71c8 | 2019-10-22 19:01:39 -0700 | [diff] [blame] | 590 | always_inline clib_us_time_t |
| 591 | transport_us_time_now (u32 thread_index) |
| 592 | { |
| 593 | return session_main.wrk[thread_index].last_vlib_us_time; |
| 594 | } |
| 595 | |
Florin Coras | a39f472 | 2020-11-12 10:20:05 -0800 | [diff] [blame] | 596 | always_inline clib_time_type_t |
| 597 | transport_seconds_per_loop (u32 thread_index) |
| 598 | { |
| 599 | return session_main.wrk[thread_index].vm->seconds_per_loop; |
| 600 | } |
| 601 | |
Florin Coras | 3ec66b0 | 2018-08-23 16:27:05 -0700 | [diff] [blame] | 602 | always_inline void |
| 603 | transport_add_tx_event (transport_connection_t * tc) |
| 604 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 605 | session_t *s = session_get (tc->s_index, tc->thread_index); |
| 606 | if (svm_fifo_has_event (s->tx_fifo)) |
Florin Coras | 3ec66b0 | 2018-08-23 16:27:05 -0700 | [diff] [blame] | 607 | return; |
Florin Coras | f6c4313 | 2019-03-01 12:41:21 -0800 | [diff] [blame] | 608 | session_send_io_evt_to_thread (s->tx_fifo, SESSION_IO_EVT_TX); |
Florin Coras | 3ec66b0 | 2018-08-23 16:27:05 -0700 | [diff] [blame] | 609 | } |
| 610 | |
Florin Coras | fb50bc3 | 2021-05-18 00:28:59 -0700 | [diff] [blame] | 611 | always_inline u32 |
| 612 | transport_cl_thread (void) |
| 613 | { |
| 614 | return session_main.transport_cl_thread; |
| 615 | } |
| 616 | |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 617 | /* |
| 618 | * Listen sessions |
| 619 | */ |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 620 | |
| 621 | always_inline u64 |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 622 | listen_session_get_handle (session_t * s) |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 623 | { |
Aloys Augustin | cdb7170 | 2019-04-08 17:54:39 +0200 | [diff] [blame] | 624 | ASSERT (s->session_state == SESSION_STATE_LISTENING || |
| 625 | session_get_transport_proto (s) == TRANSPORT_PROTO_QUIC); |
Florin Coras | 5c9083d | 2018-04-13 06:39:07 -0700 | [diff] [blame] | 626 | return session_handle (s); |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 627 | } |
| 628 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 629 | always_inline session_t * |
Florin Coras | f8f516a | 2018-02-08 15:10:09 -0800 | [diff] [blame] | 630 | listen_session_get_from_handle (session_handle_t handle) |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 631 | { |
Florin Coras | 5c9083d | 2018-04-13 06:39:07 -0700 | [diff] [blame] | 632 | return session_get_from_handle (handle); |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 633 | } |
| 634 | |
Florin Coras | 371ca50 | 2018-02-21 12:07:41 -0800 | [diff] [blame] | 635 | always_inline void |
Florin Coras | 5c9083d | 2018-04-13 06:39:07 -0700 | [diff] [blame] | 636 | listen_session_parse_handle (session_handle_t handle, u32 * index, |
| 637 | u32 * thread_index) |
Florin Coras | 371ca50 | 2018-02-21 12:07:41 -0800 | [diff] [blame] | 638 | { |
Florin Coras | 5c9083d | 2018-04-13 06:39:07 -0700 | [diff] [blame] | 639 | session_parse_handle (handle, index, thread_index); |
Florin Coras | 371ca50 | 2018-02-21 12:07:41 -0800 | [diff] [blame] | 640 | } |
| 641 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 642 | always_inline session_t * |
Florin Coras | ba7d8f5 | 2019-02-22 13:11:38 -0800 | [diff] [blame] | 643 | listen_session_alloc (u8 thread_index, session_type_t type) |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 644 | { |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 645 | session_t *s; |
Florin Coras | 5c9083d | 2018-04-13 06:39:07 -0700 | [diff] [blame] | 646 | s = session_alloc (thread_index); |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 647 | s->session_type = type; |
| 648 | s->session_state = SESSION_STATE_LISTENING; |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 649 | return s; |
| 650 | } |
| 651 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 652 | always_inline session_t * |
Florin Coras | ba7d8f5 | 2019-02-22 13:11:38 -0800 | [diff] [blame] | 653 | listen_session_get (u32 ls_index) |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 654 | { |
Florin Coras | ba7d8f5 | 2019-02-22 13:11:38 -0800 | [diff] [blame] | 655 | return session_get (ls_index, 0); |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 656 | } |
| 657 | |
| 658 | always_inline void |
Florin Coras | ba7d8f5 | 2019-02-22 13:11:38 -0800 | [diff] [blame] | 659 | listen_session_free (session_t * s) |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 660 | { |
Florin Coras | 87b7e3d | 2020-03-27 15:06:07 +0000 | [diff] [blame] | 661 | ASSERT (!s->rx_fifo); |
Florin Coras | 5c9083d | 2018-04-13 06:39:07 -0700 | [diff] [blame] | 662 | session_free (s); |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 663 | } |
| 664 | |
Florin Coras | ea72764 | 2021-05-07 19:39:43 -0700 | [diff] [blame] | 665 | always_inline session_t * |
| 666 | ho_session_alloc (void) |
| 667 | { |
| 668 | session_t *s; |
| 669 | ASSERT (vlib_get_thread_index () == 0); |
| 670 | s = session_alloc (0); |
| 671 | s->session_state = SESSION_STATE_CONNECTING; |
| 672 | s->flags |= SESSION_F_HALF_OPEN; |
| 673 | return s; |
| 674 | } |
| 675 | |
| 676 | always_inline session_t * |
| 677 | ho_session_get (u32 ho_index) |
| 678 | { |
| 679 | return session_get (ho_index, 0 /* half-open thread */); |
| 680 | } |
| 681 | |
| 682 | always_inline void |
| 683 | ho_session_free (session_t *s) |
| 684 | { |
| 685 | ASSERT (!s->rx_fifo && s->thread_index == 0); |
| 686 | session_free (s); |
| 687 | } |
| 688 | |
Florin Coras | 288eaab | 2019-02-03 15:26:14 -0800 | [diff] [blame] | 689 | transport_connection_t *listen_session_get_transport (session_t * s); |
Florin Coras | 3cbc04b | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 690 | |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 691 | /* |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 692 | * Session layer functions |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 693 | */ |
| 694 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 695 | always_inline session_main_t * |
| 696 | vnet_get_session_main () |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 697 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 698 | return &session_main; |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 699 | } |
| 700 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 701 | always_inline session_worker_t * |
| 702 | session_main_get_worker (u32 thread_index) |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 703 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 704 | return &session_main.wrk[thread_index]; |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 705 | } |
| 706 | |
Florin Coras | 5bb23ec | 2019-08-31 09:45:13 -0700 | [diff] [blame] | 707 | static inline session_worker_t * |
| 708 | session_main_get_worker_if_valid (u32 thread_index) |
| 709 | { |
Nathan Skrzypczak | 901467e | 2019-12-04 11:02:28 +0100 | [diff] [blame] | 710 | if (thread_index > vec_len (session_main.wrk)) |
Florin Coras | 5bb23ec | 2019-08-31 09:45:13 -0700 | [diff] [blame] | 711 | return 0; |
| 712 | return &session_main.wrk[thread_index]; |
| 713 | } |
| 714 | |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 715 | always_inline svm_msg_q_t * |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 716 | session_main_get_vpp_event_queue (u32 thread_index) |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 717 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 718 | return session_main.wrk[thread_index].vpp_event_queue; |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 719 | } |
Florin Coras | fd542f1 | 2018-05-16 19:28:24 -0700 | [diff] [blame] | 720 | |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 721 | always_inline u8 |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 722 | session_main_is_enabled () |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 723 | { |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 724 | return session_main.is_enabled == 1; |
Florin Coras | 6cf30ad | 2017-04-04 23:08:23 -0700 | [diff] [blame] | 725 | } |
| 726 | |
Florin Coras | cea194d | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 727 | #define session_cli_return_if_not_enabled() \ |
| 728 | do { \ |
Florin Coras | 5bb23ec | 2019-08-31 09:45:13 -0700 | [diff] [blame] | 729 | if (!session_main.is_enabled) \ |
| 730 | return clib_error_return (0, "session layer is not enabled"); \ |
Florin Coras | cea194d | 2017-10-02 00:18:51 -0700 | [diff] [blame] | 731 | } while (0) |
| 732 | |
Florin Coras | 31c9955 | 2019-03-01 13:00:58 -0800 | [diff] [blame] | 733 | int session_main_flush_enqueue_events (u8 proto, u32 thread_index); |
| 734 | int session_main_flush_all_enqueue_events (u8 transport_proto); |
Florin Coras | 5484daa | 2020-03-27 23:55:06 +0000 | [diff] [blame] | 735 | void session_queue_run_on_main_thread (vlib_main_t * vm); |
Florin Coras | 2a7ea2e | 2019-10-16 22:06:08 -0700 | [diff] [blame] | 736 | |
Florin Coras | 5484daa | 2020-03-27 23:55:06 +0000 | [diff] [blame] | 737 | /** |
| 738 | * Add session node pending buffer with custom node |
| 739 | * |
| 740 | * @param thread_index worker thread expected to send the buffer |
| 741 | * @param bi buffer index |
| 742 | * @param next_node next node edge index for buffer. Edge to next node |
| 743 | * must exist |
| 744 | */ |
Florin Coras | 2a7ea2e | 2019-10-16 22:06:08 -0700 | [diff] [blame] | 745 | always_inline void |
Florin Coras | 5484daa | 2020-03-27 23:55:06 +0000 | [diff] [blame] | 746 | session_add_pending_tx_buffer (u32 thread_index, u32 bi, u32 next_node) |
Florin Coras | 2a7ea2e | 2019-10-16 22:06:08 -0700 | [diff] [blame] | 747 | { |
| 748 | session_worker_t *wrk = session_main_get_worker (thread_index); |
| 749 | vec_add1 (wrk->pending_tx_buffers, bi); |
Florin Coras | 5484daa | 2020-03-27 23:55:06 +0000 | [diff] [blame] | 750 | vec_add1 (wrk->pending_tx_nexts, next_node); |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 751 | if (PREDICT_FALSE (wrk->state == SESSION_WRK_INTERRUPT)) |
| 752 | vlib_node_set_interrupt_pending (wrk->vm, session_queue_node.index); |
Florin Coras | 2a7ea2e | 2019-10-16 22:06:08 -0700 | [diff] [blame] | 753 | } |
| 754 | |
Florin Coras | 8f10b90 | 2021-04-02 18:32:00 -0700 | [diff] [blame] | 755 | always_inline void |
| 756 | session_wrk_update_time (session_worker_t *wrk, f64 now) |
| 757 | { |
| 758 | wrk->last_vlib_time = now; |
| 759 | wrk->last_vlib_us_time = wrk->last_vlib_time * CLIB_US_TIME_FREQ; |
| 760 | } |
| 761 | |
Florin Coras | 7da8829 | 2021-03-18 15:04:34 -0700 | [diff] [blame] | 762 | void session_wrk_enable_adaptive_mode (session_worker_t *wrk); |
Florin Coras | 04943b4 | 2020-12-25 11:45:40 -0800 | [diff] [blame] | 763 | fifo_segment_t *session_main_get_evt_q_segment (void); |
Dave Barach | 2a86391 | 2017-11-28 10:11:42 -0500 | [diff] [blame] | 764 | void session_node_enable_disable (u8 is_en); |
Florin Coras | 1ee7830 | 2019-02-05 15:51:15 -0800 | [diff] [blame] | 765 | clib_error_t *vnet_session_enable_disable (vlib_main_t * vm, u8 is_en); |
Dave Barach | 2a86391 | 2017-11-28 10:11:42 -0500 | [diff] [blame] | 766 | |
Andreas Schultz | 1a8c437 | 2020-03-20 09:39:59 +0100 | [diff] [blame] | 767 | session_t *session_alloc_for_connection (transport_connection_t * tc); |
Florin Coras | 2c876f9 | 2021-05-10 21:12:27 -0700 | [diff] [blame] | 768 | session_t *session_alloc_for_half_open (transport_connection_t *tc); |
Andreas Schultz | 1a8c437 | 2020-03-20 09:39:59 +0100 | [diff] [blame] | 769 | |
Dave Barach | 68b0fb0 | 2017-02-28 15:15:56 -0500 | [diff] [blame] | 770 | #endif /* __included_session_h__ */ |
| 771 | |
| 772 | /* |
| 773 | * fd.io coding-style-patch-verification: ON |
| 774 | * |
| 775 | * Local Variables: |
| 776 | * eval: (c-set-style "gnu") |
| 777 | * End: |
| 778 | */ |